session: Check the session timeout and use it if set

This checks if a timeout has been set using ssh_options_set(). If it has
been set it will use that parameter by default for blocking reads.

This is at least what users are expecting.

Fixes T33

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>

.gitlab-ci.yml

@@ -7,12 +7,15 @@ variables:
   DEBIAN_CROSS_BUILD: buildenv-debian-cross
 
 # torture_auth fails on centos7 docker images, so we don't use -DCLIENT_TESTING=ON
-centos7/openssl_1.0.x/x86-64:
+centos7/openssl_1.0.x/x86_64:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$CENTOS7_BUILD
   script:
-  - mkdir -p obj && cd obj && cmake3 -DUNIT_TESTING=ON -DCMAKE_BUILD_TYPE=Debug
+  - mkdir -p obj && cd obj && cmake3
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
-    -DWITH_PCAP=ON .. && make -j$(nproc) && ctest --output-on-failure
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
   tags:
   - shared
   except:
@@ -23,11 +26,13 @@ centos7/openssl_1.0.x/x86-64:
     paths:
       - obj/
 
-fedora/openssl_1.1.x/x86-64:
+fedora/openssl_1.1.x/x86_64:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$FEDORA_BUILD
   script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_BUILD_TYPE=Debug
+  - mkdir -p obj && cd obj && cmake
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
   tags:
@@ -41,14 +46,16 @@ fedora/openssl_1.1.x/x86-64:
       - obj/
 
 # Address sanitizer doesn't mix well with LD_PRELOAD used in the testsuite
-.fedora/address-sanitizer:
+# so, this is only enabled for unit tests right now.
+# TODO: add -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
+fedora/address-sanitizer:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$FEDORA_BUILD
   script:
   - mkdir -p obj && cd obj && cmake
-    -DCMAKE_C_FLAGS="-O2 -g -fsanitize=address"
+    -DCMAKE_BUILD_TYPE=AddressSanitizer
-    -DCMAKE_LINK_FLAGS="-fsanitize=address -static-libasan"
+    -DPICKY_DEVELOPER=ON
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    -DUNIT_TESTING=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
   tags:
   - shared
@@ -65,7 +72,7 @@ fedora/undefined-sanitizer:
   script:
   - mkdir -p obj && cd obj && cmake
     -DCMAKE_C_FLAGS="-fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON ..
     && make -j$(nproc) && ctest --output-on-failure
   tags:
@@ -78,16 +85,27 @@ fedora/undefined-sanitizer:
     paths:
       - obj/
 
-fedora/static-analysis:
+fedora/csbuild:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$FEDORA_BUILD
   script:
-  - export CCC_CC=clang
+  - |
-  - export CCC_CXX=clang++
+    if [[ -z "$CI_COMMIT_BEFORE_SHA" ]]; then
-  - mkdir -p obj && cd obj && scan-build cmake -DCMAKE_BUILD_TYPE=Debug
+        export CI_COMMIT_BEFORE_SHA=$(git rev-parse "${CI_COMMIT_SHA}~20")
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    fi
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
+
-    -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang .. &&
+    # Check if the commit exists in this branch
-    scan-build --status-bugs -o scan make -j$(nproc)
+    # This is not the case for a force push
+    git branch --contains $CI_COMMIT_BEFORE_SHA 2>/dev/null || export CI_COMMIT_BEFORE_SHA=$(git rev-parse "${CI_COMMIT_SHA}~20")
+
+    export CI_COMMIT_RANGE="$CI_COMMIT_BEFORE_SHA..$CI_COMMIT_SHA"
+
+  - csbuild
+    --build-dir=obj-csbuild
+    --prep-cmd="cmake -DCMAKE_BUILD_TYPE=Debug -DPICKY_DEVELOPER=ON -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON -DFUZZ_TESTING=ON @SRCDIR@"
+    --build-cmd "make clean && make -j$(nproc)"
+    --git-commit-range $CI_COMMIT_RANGE
+    --color
+    --print-current --print-fixed
   tags:
   - shared
   except:
@@ -96,15 +114,17 @@ fedora/static-analysis:
     expire_in: 1 week
     when: on_failure
     paths:
-      - obj/scan
+      - obj-csbuild/
 
 # That is a specific runner that we cannot enable universally.
 # We restrict it to builds under the $BUILD_IMAGES_PROJECT project.
-freebsd/x86-64:
+freebsd/x86_64:
   image:
   script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_BUILD_TYPE=Debug
+  - mkdir -p obj && cd obj && cmake
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DUNIT_TESTING=ON .. &&
     make && ctest --output-on-failure
   tags:
@@ -120,11 +140,13 @@ freebsd/x86-64:
     paths:
       - obj/
 
-fedora/libgcrypt/x86-64:
+fedora/libgcrypt/x86_64:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$FEDORA_BUILD
   script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_BUILD_TYPE=Debug
+  - mkdir -p obj && cd obj && cmake
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
     -DWITH_GCRYPT=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
@@ -138,11 +160,13 @@ fedora/libgcrypt/x86-64:
     paths:
       - obj/
 
-fedora/mbedtls/x86-64:
+fedora/mbedtls/x86_64:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$FEDORA_BUILD
   script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_BUILD_TYPE=Debug
+  - mkdir -p obj && cd obj && cmake
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
     -DWITH_MBEDTLS=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
@@ -156,92 +180,20 @@ fedora/mbedtls/x86-64:
     paths:
       - obj/
 
-tumbleweed/openssl_1.1.x/x86-64:
-  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
-  script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_BUILD_TYPE=Debug
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DKRB5_CONFIG=/usr/lib/mit/bin/krb5-config
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
-    make -j$(nproc) && ctest --output-on-failure
-  tags:
-  - shared
-  except:
-  - tags
-  artifacts:
-    expire_in: 1 week
-    when: on_failure
-    paths:
-      - obj/
-
-tumbleweed/openssl_1.1.x/x86:
-  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
-  script:
-  - mkdir -p obj && cd obj && cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-cross-m32.cmake
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DUNIT_TESTING=ON .. &&
-    make -j$(nproc) && ctest --output-on-failure
-  tags:
-  - shared
-  except:
-  - tags
-  artifacts:
-    expire_in: 1 week
-    when: on_failure
-    paths:
-      - obj/
-
-tumbleweed/undefined-sanitizer:
-  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
-  script:
-  - mkdir -p obj && cd obj && cmake
-    -DCMAKE_C_FLAGS="-fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON ..
-    && make -j$(nproc) && ctest --output-on-failure
-  tags:
-  - shared
-  except:
-  - tags
-  artifacts:
-    expire_in: 1 week
-    when: on_failure
-    paths:
-      - obj/
-
-tumbleweed/static-analysis:
-  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
-  script:
-  - export CCC_CC=clang
-  - export CCC_CXX=clang++
-  - mkdir -p obj && cd obj && scan-build cmake -DCMAKE_BUILD_TYPE=Debug
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
-    -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang .. &&
-    scan-build --status-bugs -o scan make -j$(nproc)
-  tags:
-  - shared
-  except:
-  - tags
-  artifacts:
-    expire_in: 1 week
-    when: on_failure
-    paths:
-      - obj/scan
-
 # Unit testing only, no client and pkd testing, because cwrap is not available
 # for MinGW
-mingw64:
+fedora/mingw64:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$MINGW_BUILD
   script:
-  - Xvfb :1 -screen 0 1024x768x16 -ac +extension GLX +render -noreset -nolisten tcp &
-  - export DISPLAY=:1
-  - mkdir -p obj && cd obj && mingw64-cmake -DCMAKE_BUILD_TYPE=Debug
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DUNIT_TESTING=ON .. &&
-    make -j$(nproc)
   - export WINEPATH=/usr/x86_64-w64-mingw32/sys-root/mingw/bin
-  - ctest --output-on-failure
+  - export WINEDEBUG=-all
+  - mkdir -p obj && cd obj && mingw64-cmake
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON .. &&
+    make -j$(nproc) &&
+    ctest --output-on-failure
   tags:
   - shared
   except:
@@ -254,17 +206,18 @@ mingw64:
 
 # Unit testing only, no client and pkd testing, because cwrap is not available
 # for MinGW
-mingw32:
+fedora/mingw32:
   image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$MINGW_BUILD
   script:
-  - Xvfb :1 -screen 0 1024x768x16 -ac +extension GLX +render -noreset -nolisten tcp &
-  - export DISPLAY=:1
-  - mkdir -p obj && cd obj && mingw32-cmake -DCMAKE_BUILD_TYPE=Debug
-    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON --DWITH_PCAP=ON
-    -DUNIT_TESTING=ON .. &&
-    make -j$(nproc)
   - export WINEPATH=/usr/i686-w64-mingw32/sys-root/mingw/bin
-  - ctest --output-on-failure
+  - export WINEDEBUG=-all
+  - mkdir -p obj && cd obj && mingw32-cmake
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON .. &&
+    make -j$(nproc) &&
+    ctest --output-on-failure
   tags:
   - shared
   except:
@@ -284,10 +237,11 @@ mingw32:
   - mkdir -p obj && cd obj && cmake
     -DCMAKE_C_COMPILER="$(which $host-gcc)"
     -DCMAKE_CXX_COMPILER="$(which $host-g++)"
-    -DCMAKE_BUILD_TYPE=Debug
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
     -DUNIT_TESTING=ON -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON
-    -DWITH_PCAP=ON .. && make -j$(nproc)
+    -DWITH_PCAP=ON .. &&
-  - ctest --output-on-failure -j$(nproc)
+    make -j$(nproc) &&
+    ctest --output-on-failure
   tags:
   - shared
   except:
@@ -300,3 +254,214 @@ mingw32:
 
 Debian.cross.mips-linux-gnu:
   <<: *Debian_cross_template
+
+tumbleweed/openssl_1.1.x/x86_64/gcc:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DKRB5_CONFIG=/usr/lib/mit/bin/krb5-config
+    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/openssl_1.1.x/x86/gcc:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-cross-m32.cmake
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/openssl_1.1.x/x86_64/gcc7:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_C_COMPILER=gcc-7 -DCMAKE_CXX_COMPILER=g++-7
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DKRB5_CONFIG=/usr/lib/mit/bin/krb5-config
+    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/openssl_1.1.x/x86/gcc7:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-cross-m32.cmake
+    -DCMAKE_C_COMPILER=gcc-7 -DCMAKE_CXX_COMPILER=g++-7
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/openssl_1.1.x/x86_64/clang:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo
+    -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DKRB5_CONFIG=/usr/lib/mit/bin/krb5-config
+    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/docs:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake .. && make docs
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/undefined-sanitizer:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - mkdir -p obj && cd obj && cmake
+    -DCMAKE_BUILD_TYPE=UndefinedSanitizer
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    make -j$(nproc) && ctest --output-on-failure
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+tumbleweed/static-analysis:
+  image: $CI_REGISTRY/$BUILD_IMAGES_PROJECT:$TUMBLEWEED_BUILD
+  script:
+  - export CCC_CC=clang
+  - export CCC_CXX=clang++
+  - mkdir -p obj && cd obj && scan-build cmake
+    -DCMAKE_BUILD_TYPE=Debug
+    -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
+    -DPICKY_DEVELOPER=ON
+    -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
+    scan-build --status-bugs -o scan make -j$(nproc)
+  tags:
+  - shared
+  except:
+  - tags
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/scan
+
+visualstudio/x86_64:
+  script:
+  - $env:VCPKG_DEFAULT_TRIPLET="x64-windows"
+  - cd obj
+  - cmake
+      -A x64
+      -DCMAKE_TOOLCHAIN_FILE="$env:VCPKG_TOOLCHAIN_FILE"
+      -DPICKY_DEVELOPER=ON
+      -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+      -DUNIT_TESTING=ON ..
+  - cmake --build .
+  - ctest --output-on-failure
+  tags:
+  - vs2017
+  - windows
+  except:
+  - tags
+  only:
+  - branches@libssh/libssh-mirror
+  - branches@ansasaki/libssh-mirror
+  - branches@cryptomilk/libssh-mirror
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/
+
+visualstudio/x86:
+  script:
+  - $env:VCPKG_DEFAULT_TRIPLET="x86-windows"
+  - cd obj
+  - cmake
+      -DCMAKE_TOOLCHAIN_FILE="$env:VCPKG_TOOLCHAIN_FILE"
+      -DPICKY_DEVELOPER=ON
+      -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
+      -DUNIT_TESTING=ON ..
+  - cmake --build .
+  - ctest --output-on-failure
+  tags:
+  - vs2017
+  - windows
+  except:
+  - tags
+  only:
+  - branches@libssh/libssh-mirror
+  - branches@ansasaki/libssh-mirror
+  - branches@cryptomilk/libssh-mirror
+  artifacts:
+    expire_in: 1 week
+    when: on_failure
+    paths:
+      - obj/

CMakeLists.txt

@@ -1,7 +1,16 @@
-cmake_minimum_required(VERSION 3.2.0)
+cmake_minimum_required(VERSION 3.3.0)
 cmake_policy(SET CMP0048 NEW)
 
-project(libssh VERSION 0.8.0 LANGUAGES C)
+# Specify search path for CMake modules to be loaded by include() 
+# and find_package()
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
+
+# Add defaults for cmake
+# Those need to be set before the project() call.
+include(DefineCMakeDefaults)
+include(DefineCompilerFlags)
+
+project(libssh VERSION 0.8.90 LANGUAGES C)
 
 # global needed variable
 set(APPLICATION_NAME ${PROJECT_NAME})
@@ -13,26 +22,26 @@ set(APPLICATION_NAME ${PROJECT_NAME})
 #     Increment AGE. Set REVISION to 0
 #   If the source code was changed, but there were no interface changes:
 #     Increment REVISION.
-set(LIBRARY_VERSION "4.5.0")
+set(LIBRARY_VERSION "4.7.2")
 set(LIBRARY_SOVERSION "4")
 
 # where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked
-set(CMAKE_MODULE_PATH
-  ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules
-)
 
 # add definitions
-include(DefineCMakeDefaults)
 include(DefinePlatformDefaults)
-include(DefineCompilerFlags)
 include(DefineInstallationPaths)
 include(DefineOptions.cmake)
 include(CPackConfig.cmake)
 
+include(CompilerChecks.cmake)
+
 # disallow in-source build
 include(MacroEnsureOutOfSourceBuild)
 macro_ensure_out_of_source_build("${PROJECT_NAME} requires an out of source build. Please create a separate build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there.")
 
+# Copy library files to a lib sub-directory
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
+
 # search for libraries
 if (WITH_ZLIB)
     find_package(ZLIB REQUIRED)
@@ -61,6 +70,10 @@ else (WITH_GCRYPT)
   endif (NOT OPENSSL_FOUND)
 endif(WITH_GCRYPT)
 
+if (UNIT_TESTING)
+    find_package(CMocka REQUIRED)
+endif ()
+
 # Find out if we have threading available
 set(CMAKE_THREAD_PREFER_PTHREADS ON)
 set(THREADS_PREFER_PTHREAD_FLAG ON)
@@ -83,7 +96,7 @@ endif (BSD OR SOLARIS OR OSX)
 
 # Disable symbol versioning in non UNIX platforms
 if (UNIX)
-    find_package(ABIMap)
+    find_package(ABIMap 0.3.1)
 else (UNIX)
     set(WITH_SYMBOL_VERSIONING OFF)
 endif (UNIX)
@@ -110,11 +123,22 @@ install(
 )
 endif (UNIX)
 
-# cmake config files
+# CMake config files
+include(CMakePackageConfigHelpers)
+
 set(LIBSSH_LIBRARY_NAME ${CMAKE_SHARED_LIBRARY_PREFIX}ssh${CMAKE_SHARED_LIBRARY_SUFFIX})
 
-configure_file(${PROJECT_NAME}-config.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake @ONLY)
+# libssh-config-version.cmake
-configure_file(${PROJECT_NAME}-config-version.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake @ONLY)
+write_basic_package_version_file(libssh-config-version.cmake
+                                 VERSION ${PROJECT_VERSION}
+                                 COMPATIBILITY SameMajorVersion)
+
+# libssh-config.cmake
+configure_package_config_file(${PROJECT_NAME}-config.cmake.in
+                              ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
+                              INSTALL_DESTINATION ${CMAKE_INSTALL_DIR}/${PROJECT_NAME}
+                              PATH_VARS INCLUDE_INSTALL_DIR LIB_INSTALL_DIR)
+
 install(
     FILES
         ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
@@ -125,18 +149,13 @@ install(
         devel
 )
 
-
-# in tree build settings
-configure_file(libssh-build-tree-settings.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libssh-build-tree-settings.cmake @ONLY)
-
 if (WITH_EXAMPLES)
     add_subdirectory(examples)
 endif (WITH_EXAMPLES)
 
 if (UNIT_TESTING)
-  find_package(CMocka REQUIRED)
+    include(AddCMockaTest)
-  include(AddCMockaTest)
+    add_subdirectory(tests)
-  add_subdirectory(tests)
 endif (UNIT_TESTING)
 
 ### SOURCE PACKAGE
@@ -158,13 +177,13 @@ if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
         message(STATUS "Library version bumped to ${LIBRARY_VERSION}: Updating ABI")
 
         # Get the list of header files
-        get_file_list("${PROJECT_NAME}_header_list"
+        get_file_list(${PROJECT_NAME}_header_list
                       DIRECTORIES "${CMAKE_SOURCE_DIR}/include/libssh"
                       FILES_PATTERNS "*.h")
 
         # Extract the symbols marked as "LIBSSH_API" from the header files
         extract_symbols(${PROJECT_NAME}.symbols
-                        HEADERS_LIST_FILE "${PROJECT_NAME}_header_list"
+                        HEADERS_LIST ${PROJECT_NAME}_header_list
                         FILTER_PATTERN "LIBSSH_API"
                         COPY_TO "${CMAKE_SOURCE_DIR}/src/ABI/${PROJECT_NAME}-${LIBRARY_VERSION}.symbols")
 
@@ -180,7 +199,7 @@ if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
 
         # Generate the symbol version map file
         generate_map_file(${_SYMBOL_TARGET}
-                          SYMBOLS "${PROJECT_NAME}.symbols"
+                          SYMBOLS ${PROJECT_NAME}.symbols
                           RELEASE_NAME_VERSION ${PROJECT_NAME}_${LIBRARY_VERSION}
                           CURRENT_MAP ${MAP_PATH}
                           COPY_TO ${MAP_PATH}

COPYING

@@ -455,6 +455,15 @@ FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
 
-        Linking with OpenSSL
+			    Linking with OpenSSL
-17. In addition, as a special exception, we give permission to link the code of its release of libssh with the OpenSSL project's "OpenSSL" library (or with modified versions of it that use the same license as the "OpenSSL" library), and distribute the linked executables. You must obey the GNU Lesser General Public License in all respects for all of the code used other than "OpenSSL". If you modify this file, you may extend this exception to your version of the file, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.
+
+  17. In addition, as a special exception, we give permission to link the code
+of its release of libssh with the OpenSSL project's "OpenSSL" library (or with
+modified versions of it that use the same license as the "OpenSSL" library),
+and distribute the linked executables. You must obey the GNU Lesser General
+Public License in all respects for all of the code used other than "OpenSSL".
+If you modify this file, you may extend this exception to your version of the
+file, but you are not obligated to do so. If you do not wish to do so, delete
+this exception statement from your version.
+
 		     END OF TERMS AND CONDITIONS

CPackConfig.cmake

@@ -10,7 +10,7 @@ set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
 
 # SOURCE GENERATOR
 set(CPACK_SOURCE_GENERATOR "TXZ")
-set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]git/;.gitignore;build;obj*;tags;cscope.*")
+set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]git/;.gitignore;/build*;/obj*;tags;cscope.*")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
 
 ### NSIS INSTALLER

CompilerChecks.cmake

@@ -0,0 +1,120 @@
+include(AddCCompilerFlag)
+include(CheckCCompilerFlagSSP)
+
+if (UNIX)
+    #
+    # Check for -Werror turned on if possible
+    #
+    # This will prevent that compiler flags are detected incorrectly.
+    #
+    check_c_compiler_flag("-Werror" REQUIRED_FLAGS_WERROR)
+    if (REQUIRED_FLAGS_WERROR)
+        set(CMAKE_REQUIRED_FLAGS "-Werror")
+
+        if (PICKY_DEVELOPER)
+            list(APPEND SUPPORTED_COMPILER_FLAGS "-Werror")
+        endif()
+    endif()
+
+    add_c_compiler_flag("-std=gnu99" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wpedantic" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wall" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wshadow" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wmissing-prototypes" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wcast-align" SUPPORTED_COMPILER_FLAGS)
+    #add_c_compiler_flag("-Wcast-qual" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=address" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wstrict-prototypes" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=strict-prototypes" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wwrite-strings" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=write-strings" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror-implicit-function-declaration" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wpointer-arith" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=pointer-arith" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wdeclaration-after-statement" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=declaration-after-statement" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wreturn-type" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=return-type" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wuninitialized" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=uninitialized" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wimplicit-fallthrough" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=strict-overflow" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wstrict-overflow=2" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Wno-format-zero-length" SUPPORTED_COMPILER_FLAGS)
+
+    check_c_compiler_flag("-Wformat" REQUIRED_FLAGS_WFORMAT)
+    if (REQUIRED_FLAGS_WFORMAT)
+        list(APPEND SUPPORTED_COMPILER_FLAGS "-Wformat")
+        set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Wformat")
+    endif()
+    add_c_compiler_flag("-Wformat-security" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("-Werror=format-security" SUPPORTED_COMPILER_FLAGS)
+
+    # Allow zero for a variadic macro argument
+    string(TOLOWER "${CMAKE_C_COMPILER_ID}" _C_COMPILER_ID)
+    if ("${_C_COMPILER_ID}" STREQUAL "clang")
+        add_c_compiler_flag("-Wno-gnu-zero-variadic-macro-arguments" SUPPORTED_COMPILER_FLAGS)
+    endif()
+
+    add_c_compiler_flag("-fno-common" SUPPORTED_COMPILER_FLAGS)
+
+    if (CMAKE_BUILD_TYPE)
+        string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
+        if (CMAKE_BUILD_TYPE_LOWER MATCHES (release|relwithdebinfo|minsizerel))
+            add_c_compiler_flag("-Wp,-D_FORTIFY_SOURCE=2" SUPPORTED_COMPILER_FLAGS)
+        endif()
+    endif()
+
+    check_c_compiler_flag_ssp("-fstack-protector-strong" WITH_STACK_PROTECTOR_STRONG)
+    if (WITH_STACK_PROTECTOR_STRONG)
+        list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-protector-strong")
+        # This is needed as Solaris has a seperate libssp
+        if (SOLARIS)
+            list(APPEND SUPPORTED_LINKER_FLAGS "-fstack-protector-strong")
+        endif()
+    else (WITH_STACK_PROTECTOR_STRONG)
+        check_c_compiler_flag_ssp("-fstack-protector" WITH_STACK_PROTECTOR)
+        if (WITH_STACK_PROTECTOR)
+            list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-protector")
+            # This is needed as Solaris has a seperate libssp
+            if (SOLARIS)
+                list(APPEND SUPPORTED_LINKER_FLAGS "-fstack-protector")
+            endif()
+        endif()
+    endif (WITH_STACK_PROTECTOR_STRONG)
+
+    check_c_compiler_flag_ssp("-fstack-clash-protection" WITH_STACK_CLASH_PROTECTION)
+    if (WITH_STACK_CLASH_PROTECTION)
+        list(APPEND SUPPORTED_COMPILER_FLAGS "-fstack-clash-protection")
+    endif()
+
+    if (PICKY_DEVELOPER)
+        add_c_compiler_flag("-Wno-error=deprecated-declarations" SUPPORTED_COMPILER_FLAGS)
+        add_c_compiler_flag("-Wno-error=tautological-compare" SUPPORTED_COMPILER_FLAGS)
+    endif()
+
+    add_c_compiler_flag("-Wno-deprecated-declarations" DEPRECATION_COMPILER_FLAGS)
+
+    # Unset CMAKE_REQUIRED_FLAGS
+    unset(CMAKE_REQUIRED_FLAGS)
+endif()
+
+if (MSVC)
+    add_c_compiler_flag("/D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("/D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT=1" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("/D _CRT_NONSTDC_NO_WARNINGS=1" SUPPORTED_COMPILER_FLAGS)
+    add_c_compiler_flag("/D _CRT_SECURE_NO_WARNINGS=1" SUPPORTED_COMPILER_FLAGS)
+endif()
+
+# This removes this annoying warning
+# "warning: 'BN_CTX_free' is deprecated: first deprecated in OS X 10.7 [-Wdeprecated-declarations]"
+if (OSX)
+    add_c_compiler_flag("-Wno-deprecated-declarations" SUPPORTED_COMPILER_FLAGS)
+endif()
+
+set(DEFAULT_C_COMPILE_FLAGS ${SUPPORTED_COMPILER_FLAGS} CACHE INTERNAL "Default C Compiler Flags" FORCE)
+set(DEFAULT_LINK_FLAGS ${SUPPORTED_LINKER_FLAGS} CACHE INTERNAL "Default C Linker Flags" FORCE)
+
+if (DEPRECATION_COMPILER_FLAGS)
+    set(DEFAULT_C_NO_DEPRECATION_FLAGS ${DEPRECATION_COMPILER_FLAGS} CACHE INTERNAL "Default no deprecation flags" FORCE)
+endif()

ConfigureChecks.cmake

@@ -4,11 +4,11 @@ include(CheckSymbolExists)
 include(CheckFunctionExists)
 include(CheckLibraryExists)
 include(CheckTypeSize)
-include(CheckCXXSourceCompiles)
+include(CheckStructHasMember)
 include(TestBigEndian)
 
-set(PACKAGE ${APPLICATION_NAME})
+set(PACKAGE ${PROJECT_NAME})
-set(VERSION ${APPLICATION_VERSION})
+set(VERSION ${PROJECT_VERSION})
 set(DATADIR ${DATA_INSTALL_DIR})
 set(LIBDIR ${LIB_INSTALL_DIR})
 set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
@@ -64,6 +64,7 @@ check_include_file(sys/param.h HAVE_SYS_PARAM_H)
 check_include_file(arpa/inet.h HAVE_ARPA_INET_H)
 check_include_file(byteswap.h HAVE_BYTESWAP_H)
 check_include_file(glob.h HAVE_GLOB_H)
+check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
 
 if (WIN32)
   check_include_file(io.h HAVE_IO_H)
@@ -108,6 +109,10 @@ if (OPENSSL_FOUND)
     set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
     check_function_exists(EVP_aes_128_cbc HAVE_OPENSSL_EVP_AES_CBC)
 
+    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
+    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
+    check_function_exists(EVP_aes_128_gcm HAVE_OPENSSL_EVP_AES_GCM)
+
     set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
     set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
     check_function_exists(CRYPTO_THREADID_set_callback HAVE_OPENSSL_CRYPTO_THREADID_SET_CALLBACK)
@@ -124,6 +129,8 @@ if (OPENSSL_FOUND)
     set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
     check_function_exists(RAND_priv_bytes HAVE_OPENSSL_RAND_PRIV_BYTES)
 
+    check_function_exists(OPENSSL_ia32cap_loc HAVE_OPENSSL_IA32CAP_LOC)
+
     unset(CMAKE_REQUIRED_INCLUDES)
     unset(CMAKE_REQUIRED_LIBRARIES)
 endif()
@@ -150,12 +157,14 @@ endif (NOT WITH_MBEDTLS)
 
 check_function_exists(isblank HAVE_ISBLANK)
 check_function_exists(strncpy HAVE_STRNCPY)
+check_function_exists(strndup HAVE_STRNDUP)
 check_function_exists(strtoull HAVE_STRTOULL)
 check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
 check_function_exists(memset_s HAVE_MEMSET_S)
 
 if (HAVE_GLOB_H)
-  check_function_exists(glob HAVE_GLOB)
+    check_struct_has_member(glob_t gl_flags glob.h HAVE_GLOB_GL_FLAGS_MEMBER)
+    check_function_exists(glob HAVE_GLOB)
 endif (HAVE_GLOB_H)
 
 if (NOT WIN32)
@@ -252,6 +261,14 @@ if (CMAKE_USE_PTHREADS_INIT)
     set(HAVE_PTHREAD 1)
 endif (CMAKE_USE_PTHREADS_INIT)
 
+if (UNIT_TESTING)
+    if (CMOCKA_FOUND)
+        set(CMAKE_REQUIRED_LIBRARIES ${CMOCKA_LIBRARIES})
+        check_function_exists(cmocka_set_test_filter HAVE_CMOCKA_SET_TEST_FILTER)
+        unset(CMAKE_REQUIRED_LIBRARIES)
+    endif ()
+endif ()
+
 # OPTIONS
 check_c_source_compiles("
 __thread int tls;
@@ -267,25 +284,57 @@ int main(void) {
     return 0;
 }" HAVE_MSC_THREAD_LOCAL_STORAGE)
 
+###########################################################
+# For detecting attributes we need to treat warnings as
+# errors
+if (UNIX OR MINGW)
+    # Get warnings for attributs
+    check_c_compiler_flag("-Wattributes" REQUIRED_FLAGS_WERROR)
+    if (REQUIRED_FLAGS_WERROR)
+        string(APPEND CMAKE_REQUIRED_FLAGS "-Wattributes ")
+    endif()
+
+    # Turn warnings into errors
+    check_c_compiler_flag("-Werror" REQUIRED_FLAGS_WERROR)
+    if (REQUIRED_FLAGS_WERROR)
+        string(APPEND CMAKE_REQUIRED_FLAGS "-Werror ")
+    endif()
+endif ()
+
+check_c_source_compiles("
+void test_constructor_attribute(void) __attribute__ ((constructor));
+
+void test_constructor_attribute(void)
+{
+    return;
+}
+
+int main(void) {
+    return 0;
+}" HAVE_CONSTRUCTOR_ATTRIBUTE)
+
+check_c_source_compiles("
+void test_destructor_attribute(void) __attribute__ ((destructor));
+
+void test_destructor_attribute(void)
+{
+    return;
+}
+
+int main(void) {
+    return 0;
+}" HAVE_DESTRUCTOR_ATTRIBUTE)
+
 check_c_source_compiles("
 #define FALL_THROUGH __attribute__((fallthrough))
 
-enum direction_e {
-    UP = 0,
-    DOWN,
-};
-
 int main(void) {
-    enum direction_e key = UP;
+    int i = 2;
-    int i = 10;
-    int j = 0;
 
-    switch (key) {
+    switch (i) {
-    case UP:
+    case 0:
-        i = 5;
         FALL_THROUGH;
-    case DOWN:
+    case 1:
-        j = i * 2;
         break;
     default:
         break;
@@ -294,6 +343,28 @@ int main(void) {
     return 0;
 }" HAVE_FALLTHROUGH_ATTRIBUTE)
 
+if (NOT WIN32)
+    check_c_source_compiles("
+    #define __unused __attribute__((unused))
+
+    static int do_nothing(int i __unused)
+    {
+        return 0;
+    }
+
+    int main(void)
+    {
+        int i;
+
+        i = do_nothing(5);
+        if (i > 5) {
+            return 1;
+        }
+
+        return 0;
+    }" HAVE_UNUSED_ATTRIBUTE)
+endif()
+
 check_c_source_compiles("
 #include <string.h>
 
@@ -332,11 +403,34 @@ int main(void) {
     return 0;
 }" HAVE_COMPILER__FUNCTION__)
 
-
+# This is only available with OpenBSD's gcc implementation */
+if (OPENBSD)
 check_c_source_compiles("
-void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits)
+#define ARRAY_LEN 16
-    __attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN)));
+void test_attr(const unsigned char *k)
-int main(void) { return 0; }" HAVE_GCC_BOUNDED_ATTRIBUTE)
+    __attribute__((__bounded__(__minbytes__, 2, 16)));
+
+int main(void) {
+    return 0;
+}" HAVE_GCC_BOUNDED_ATTRIBUTE)
+endif(OPENBSD)
+
+# Stop treating warnings as errors
+unset(CMAKE_REQUIRED_FLAGS)
+
+# Check for version script support
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
+        global: sym;
+};
+VERS_2 {
+        global: sym;
+} VERS_1;
+")
+
+set(CMAKE_REQUIRED_FLAGS "-Wl,--version-script=\"${CMAKE_CURRENT_BINARY_DIR}/conftest.map\"")
+check_c_source_compiles("int main(void) { return 0; }" HAVE_LD_VERSION_SCRIPT)
+unset(CMAKE_REQUIRED_FLAGS)
+file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
 
 if (WITH_DEBUG_CRYPTO)
   set(DEBUG_CRYPTO 1)

DefineOptions.cmake

@@ -19,18 +19,25 @@ option(WITH_NACL "Build with libnacl (curve25519)" ON)
 option(WITH_SYMBOL_VERSIONING "Build with symbol versioning" ON)
 option(WITH_ABI_BREAK "Allow ABI break" OFF)
 option(FUZZ_TESTING "Build with fuzzer for the server" OFF)
+option(PICKY_DEVELOPER "Build with picky developer flags" OFF)
+
 if (WITH_ZLIB)
     set(WITH_LIBZ ON)
 else (WITH_ZLIB)
     set(WITH_LIBZ OFF)
 endif (WITH_ZLIB)
 
-if(WITH_BENCHMARKS)
+if (WITH_BENCHMARKS)
   set(UNIT_TESTING ON)
-endif(WITH_BENCHMARKS)
+  set(CLIENT_TESTING ON)
+endif()
+
+if (WITH_STATIC_LIB)
+    set(BUILD_STATIC_LIB ON)
+endif (WITH_STATIC_LIB)
 
 if (UNIT_TESTING)
-  set(WITH_STATIC_LIB ON)
+  set(BUILD_STATIC_LIB ON)
 endif (UNIT_TESTING)
 
 if (WITH_NACL)

INSTALL

@@ -22,12 +22,12 @@ optional:
 Note that these version numbers are version we know works correctly. If you
 build and run libssh successfully with an older version, please let us know.
 
-Windows binaries known to be working:
+For Windows use vcpkg:
 
-- http://www.slproweb.com/products/Win32OpenSSL.html
+https://github.com/Microsoft/vcpkg
-- http://zlib.net/ -> zlib compiled DLL
 
-We installed them in C:\Program Files
+which you can use to install openssl and zilib. libssh itself is also part of
+vcpkg!
 
 ## Building
 First, you need to configure the compilation, using CMake. Go inside the

cmake/Modules/AddCCompilerFlag.cmake

@@ -0,0 +1,21 @@
+#
+# add_c_compiler_flag("-Werror" SUPPORTED_CFLAGS)
+#
+# Copyright (c) 2018      Andreas Schneider <asn@cryptomilk.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+include(CheckCCompilerFlag)
+
+macro(add_c_compiler_flag _COMPILER_FLAG _OUTPUT_VARIABLE)
+    string(TOUPPER ${_COMPILER_FLAG} _COMPILER_FLAG_NAME)
+    string(REGEX REPLACE "^-" "" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
+    string(REGEX REPLACE "(-|=|\ )" "_" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
+
+    check_c_compiler_flag("${_COMPILER_FLAG}" WITH_${_COMPILER_FLAG_NAME}_FLAG)
+    if (WITH_${_COMPILER_FLAG_NAME}_FLAG)
+        #string(APPEND ${_OUTPUT_VARIABLE} "${_COMPILER_FLAG} ")
+        list(APPEND ${_OUTPUT_VARIABLE} ${_COMPILER_FLAG})
+    endif()
+endmacro()

cmake/Modules/AddCMockaTest.cmake

@@ -1,28 +1,66 @@
-# - ADD_CHECK_TEST(test_name test_source linklib1 ... linklibN)
+#
-
 # Copyright (c) 2007      Daniel Gollub <dgollub@suse.de>
-# Copyright (c) 2007-2010 Andreas Schneider <asn@cryptomilk.org>
+# Copyright (c) 2007-2018 Andreas Schneider <asn@cryptomilk.org>
+# Copyright (c) 2018      Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
 #
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 
+#.rst:
+# AddCMockaTest
+# -------------
+#
+# This file provides a function to add a test
+#
+# Functions provided
+# ------------------
+#
+# ::
+#
+#   add_cmocka_test(target_name
+#                   SOURCES src1 src2 ... srcN
+#                   [COMPILE_OPTIONS opt1 opt2 ... optN]
+#                   [LINK_LIBRARIES lib1 lib2 ... libN]
+#                   [LINK_OPTIONS lopt1 lop2 .. loptN]
+#                  )
+#
+# ``target_name``:
+#   Required, expects the name of the test which will be used to define a target
+#
+# ``SOURCES``:
+#   Required, expects one or more source files names
+#
+# ``COMPILE_OPTIONS``:
+#   Optional, expects one or more options to be passed to the compiler
+#
+# ``LINK_LIBRARIES``:
+#   Optional, expects one or more libraries to be linked with the test
+#   executable.
+#
+# ``LINK_OPTIONS``:
+#   Optional, expects one or more options to be passed to the linker
+#
+#
+# Example:
+#
+# .. code-block:: cmake
+#
+#   add_cmocka_test(my_test
+#                   SOURCES my_test.c other_source.c
+#                   COMPILE_OPTIONS -g -Wall
+#                   LINK_LIBRARIES mylib
+#                   LINK_OPTIONS -Wl,--enable-syscall-fixup
+#                  )
+#
+# Where ``my_test`` is the name of the test, ``my_test.c`` and
+# ``other_source.c`` are sources for the binary, ``-g -Wall`` are compiler
+# options to be used, ``mylib`` is a target of a library to be linked, and
+# ``-Wl,--enable-syscall-fixup`` is an option passed to the linker.
+#
+
 enable_testing()
 include(CTest)
 
-if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
-    # Profiling
-    set(CMAKE_C_FLAGS_PROFILING "-g -O0 -Wall -W -Wshadow -Wunused-variable -Wunused-parameter -Wunused-function -Wunused -Wno-system-headers -Wwrite-strings -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Compiler Flags")
-    set(CMAKE_SHARED_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags")
-    set(CMAKE_MODULE_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags")
-    set(CMAKE_EXEC_LINKER_FLAGS_PROFILING " -fprofile-arcs -ftest-coverage" CACHE STRING "Profiling Linker Flags")
-
-    # Address Sanitizer
-    set(CMAKE_C_FLAGS_ADDRESSSANITIZER "-g -O1 -fsanitize=address -fno-omit-frame-pointer" CACHE STRING "Address sanitizer compiler flags")
-    set(CMAKE_SHARED_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address" CACHE STRING "Address sanitizer shared linker flags")
-    set(CMAKE_MODULE_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address" CACHE STRING "Address sanitizer module linker flags")
-    set(CMAKE_EXEC_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address" CACHE STRING "Address sanitizer executable linker flags")
-endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
-
 if (CMAKE_CROSSCOMPILING)
     if (WIN32)
         find_program(WINE_EXECUTABLE
@@ -31,8 +69,52 @@ if (CMAKE_CROSSCOMPILING)
     endif()
 endif()
 
-function (ADD_CMOCKA_TEST _testName _testSource)
+function(ADD_CMOCKA_TEST _TARGET_NAME)
-    add_executable(${_testName} ${_testSource})
+
-    target_link_libraries(${_testName} ${ARGN})
+    set(one_value_arguments
-    add_test(${_testName} ${TARGET_SYSTEM_EMULATOR} ${CMAKE_CURRENT_BINARY_DIR}/${_testName}${CMAKE_EXECUTABLE_SUFFIX})
+    )
+
+    set(multi_value_arguments
+        SOURCES
+        COMPILE_OPTIONS
+        LINK_LIBRARIES
+        LINK_OPTIONS
+    )
+
+    cmake_parse_arguments(_add_cmocka_test
+        ""
+        "${one_value_arguments}"
+        "${multi_value_arguments}"
+        ${ARGN}
+    )
+
+    if (NOT DEFINED _add_cmocka_test_SOURCES)
+        message(FATAL_ERROR "No sources provided for target ${_TARGET_NAME}")
+    endif()
+
+    add_executable(${_TARGET_NAME} ${_add_cmocka_test_SOURCES})
+
+    if (DEFINED _add_cmocka_test_COMPILE_OPTIONS)
+        target_compile_options(${_TARGET_NAME}
+            PRIVATE ${_add_cmocka_test_COMPILE_OPTIONS}
+        )
+    endif()
+
+    if (DEFINED _add_cmocka_test_LINK_LIBRARIES)
+        target_link_libraries(${_TARGET_NAME}
+            PRIVATE ${_add_cmocka_test_LINK_LIBRARIES}
+        )
+    endif()
+
+    if (DEFINED _add_cmocka_test_LINK_OPTIONS)
+        set_target_properties(${_TARGET_NAME}
+            PROPERTIES LINK_FLAGS
+            ${_add_cmocka_test_LINK_OPTIONS}
+        )
+    endif()
+
+    add_test(${_TARGET_NAME}
+        ${TARGET_SYSTEM_EMULATOR} ${_TARGET_NAME}
+    )
+
 endfunction (ADD_CMOCKA_TEST)

cmake/Modules/CheckCCompilerFlagSSP.cmake

@@ -15,12 +15,15 @@
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 
-
+# Requires cmake 3.10
+#include_guard(GLOBAL)
 include(CheckCSourceCompiles)
 
-function(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT)
+macro(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT)
-   set(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
+   set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
-   set(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
+   set(CMAKE_REQUIRED_FLAGS "${_FLAG}")
+
    check_c_source_compiles("int main(int argc, char **argv) { char buffer[256]; return buffer[argc]=0;}" ${_RESULT})
-   set(CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
+
-endfunction(CHECK_C_COMPILER_FLAG_SSP)
+   set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}")
+endmacro(CHECK_C_COMPILER_FLAG_SSP)

cmake/Modules/DefineCMakeDefaults.cmake

@@ -14,17 +14,8 @@ set(CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE ON)
 # since cmake 2.4.0
 set(CMAKE_COLOR_MAKEFILE ON)
 
-# Define the generic version of the libraries here
-set(GENERIC_LIB_VERSION "0.1.0")
-set(GENERIC_LIB_SOVERSION "0")
-
-# Set the default build type to release with debug info
-if (NOT CMAKE_BUILD_TYPE)
-  set(CMAKE_BUILD_TYPE RelWithDebInfo
-    CACHE STRING
-      "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
-  )
-endif (NOT CMAKE_BUILD_TYPE)
-
 # Create the compile command database for clang by default
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# Always build with -fPIC
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)

cmake/Modules/DefineCompilerFlags.cmake

@@ -1,84 +1,37 @@
-# define system dependent compiler flags
-
-include(CheckCCompilerFlag)
-include(CheckCCompilerFlagSSP)
-
 if (UNIX AND NOT WIN32)
-    #
+    # Activate with: -DCMAKE_BUILD_TYPE=Profiling
-    # Define GNUCC compiler flags
+    set(CMAKE_C_FLAGS_PROFILING "-O0 -g -fprofile-arcs -ftest-coverage"
-    #
+        CACHE STRING "Flags used by the C compiler during PROFILING builds.")
-    if (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)")
+    set(CMAKE_CXX_FLAGS_PROFILING "-O0 -g -fprofile-arcs -ftest-coverage"
+        CACHE STRING "Flags used by the CXX compiler during PROFILING builds.")
+    set(CMAKE_SHARED_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during PROFILING builds.")
+    set(CMAKE_MODULE_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during PROFILING builds.")
+    set(CMAKE_EXEC_LINKER_FLAGS_PROFILING "-fprofile-arcs -ftest-coverage"
+        CACHE STRING "Flags used by the linker during PROFILING builds.")
 
-        # add -Wconversion ?
+    # Activate with: -DCMAKE_BUILD_TYPE=AddressSanitizer
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -pedantic -pedantic-errors")
+    set(CMAKE_C_FLAGS_ADDRESSSANITIZER "-g -O1 -fsanitize=address -fno-omit-frame-pointer"
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wshadow -Wmissing-prototypes -Wdeclaration-after-statement")
+        CACHE STRING "Flags used by the C compiler during ADDRESSSANITIZER builds.")
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wunused -Wfloat-equal -Wpointer-arith -Wwrite-strings -Wformat-security")
+    set(CMAKE_CXX_FLAGS_ADDRESSSANITIZER "-g -O1 -fsanitize=address -fno-omit-frame-pointer"
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-format-attribute")
+        CACHE STRING "Flags used by the CXX compiler during ADDRESSSANITIZER builds.")
-
+    set(CMAKE_SHARED_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
-        # with -fPIC
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during ADDRESSSANITIZER builds.")
-        check_c_compiler_flag("-fPIC" WITH_FPIC)
+    set(CMAKE_MODULE_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
-        if (WITH_FPIC)
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during ADDRESSSANITIZER builds.")
-            set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
+    set(CMAKE_EXEC_LINKER_FLAGS_ADDRESSSANITIZER "-fsanitize=address"
-        endif (WITH_FPIC)
+        CACHE STRING "Flags used by the linker during ADDRESSSANITIZER builds.")
-
-        check_c_compiler_flag_ssp("-fstack-protector" WITH_STACK_PROTECTOR)
-        if (WITH_STACK_PROTECTOR)
-            set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")
-        endif (WITH_STACK_PROTECTOR)
-
-        if (CMAKE_BUILD_TYPE)
-            string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
-            if (CMAKE_BUILD_TYPE_LOWER MATCHES (release|relwithdebinfo|minsizerel))
-                check_c_compiler_flag("-Wp,-D_FORTIFY_SOURCE=2" WITH_FORTIFY_SOURCE)
-                if (WITH_FORTIFY_SOURCE)
-                    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wp,-D_FORTIFY_SOURCE=2")
-                endif (WITH_FORTIFY_SOURCE)
-            endif()
-        endif()
-    endif (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)")
-
-    #
-    # Check for large filesystem support
-    #
-    if (CMAKE_SIZEOF_VOID_P MATCHES "8")
-        # with large file support
-        execute_process(
-            COMMAND
-                getconf LFS64_CFLAGS
-            OUTPUT_VARIABLE
-                _lfs_CFLAGS
-            ERROR_QUIET
-            OUTPUT_STRIP_TRAILING_WHITESPACE
-        )
-    else (CMAKE_SIZEOF_VOID_P MATCHES "8")
-        # with large file support
-        execute_process(
-            COMMAND
-                getconf LFS_CFLAGS
-            OUTPUT_VARIABLE
-                _lfs_CFLAGS
-            ERROR_QUIET
-            OUTPUT_STRIP_TRAILING_WHITESPACE
-        )
-    endif (CMAKE_SIZEOF_VOID_P MATCHES "8")
-    if (_lfs_CFLAGS)
-        string(REGEX REPLACE "[\r\n]" " " "${_lfs_CFLAGS}" "${${_lfs_CFLAGS}}")
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_lfs_CFLAGS}")
-    endif (_lfs_CFLAGS)
-
-endif (UNIX AND NOT WIN32)
-
-if (MSVC)
-    # Use secure functions by defaualt and suppress warnings about
-    #"deprecated" functions
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT=1")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_NONSTDC_NO_WARNINGS=1 /D _CRT_SECURE_NO_WARNINGS=1")
-endif (MSVC)
-
-# This removes this annoying warning
-# "warning: 'BN_CTX_free' is deprecated: first deprecated in OS X 10.7 [-Wdeprecated-declarations]"
-if (OSX)
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
-endif (OSX)
 
+    # Activate with: -DCMAKE_BUILD_TYPE=UndefinedSanitizer
+    set(CMAKE_C_FLAGS_UNDEFINEDSANITIZER "-g -O1 -fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
+        CACHE STRING "Flags used by the C compiler during UNDEFINEDSANITIZER builds.")
+    set(CMAKE_CXX_FLAGS_UNDEFINEDSANITIZER "-g -O1 -fsanitize=undefined -fsanitize=null -fsanitize=alignment -fno-sanitize-recover"
+        CACHE STRING "Flags used by the CXX compiler during UNDEFINEDSANITIZER builds.")
+    set(CMAKE_SHARED_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during UNDEFINEDSANITIZER builds.")
+    set(CMAKE_MODULE_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+        CACHE STRING "Flags used by the linker during the creation of shared libraries during UNDEFINEDSANITIZER builds.")
+    set(CMAKE_EXEC_LINKER_FLAGS_UNDEFINEDSANITIZER "-fsanitize=undefined"
+        CACHE STRING "Flags used by the linker during UNDEFINEDSANITIZER builds.")
+endif()

cmake/Modules/ExtractSymbols.cmake

@@ -85,4 +85,8 @@ endforeach()
 
 list(REMOVE_DUPLICATES symbols)
 
-file(WRITE ${OUTPUT_PATH} "${symbols}")
+list(SORT symbols)
+
+string(REPLACE ";" "\n" symbols_list "${symbols}")
+
+file(WRITE ${OUTPUT_PATH} "${symbols_list}")

cmake/Modules/FindABIMap.cmake

@@ -37,7 +37,7 @@
 #
 #   generate_map_file(target_name
 #                     RELEASE_NAME_VERSION release_name
-#                     SYMBOLS symbols_file
+#                     SYMBOLS symbols_target
 #                     [CURRENT_MAP cur_map]
 #                     [FINAL]
 #                     [BREAK_ABI]
@@ -55,8 +55,9 @@
 #   added to the symbols in the format ``lib_name_1_2_3``.
 #
 # ``SYMBOLS``:
-#   Required, expects a file containing the list of symbols to be added to the
+#   Required, expects a target with the property ``LIST_FILE`` containing a path
-#   symbol version script.
+#   to a file containing the list of symbols to be added to the symbol version
+#   script.
 #
 # ``CURRENT_MAP``:
 #   Optional. If given, the new set of symbols will be checked against the
@@ -87,9 +88,15 @@
 #   find_package(ABIMap)
 #   generate_map_file("lib.map"
 #                     RELEASE_NAME_VERSION "lib_1_0_0"
-#                     SYMBOLS "symbol1;symbol2"
+#                     SYMBOLS symbols
 #                    )
 #
+# Where the target ``symbols`` has its property ``LIST_FILE`` set to the path to
+# a file containing::
+#
+#  ``symbol1``
+#  ``symbol2``
+#
 # This example would result in the symbol version script to be created in
 # ``${CMAKE_CURRENT_BINARY_DIR}/lib.map`` containing the provided symbols.
 #
@@ -102,8 +109,8 @@
 #                  )
 #
 # ``target_name``:
-#   Required, expects the name of the target to be created. A file named after
+#   Required, expects the name of the target to be created. A file named as
-#   the string given in ``target_name`` will be created in
+#   ``${target_name}.list`` will be created in
 #   ``${CMAKE_CURRENT_BINARY_DIR}`` to receive the list of files found.
 #
 # ``DIRECTORIES``:
@@ -112,7 +119,7 @@
 #
 # ``FILES_PATTERN``:
 #   Required, expects a list of matching expressions to find the files to be
-#   considered.
+#   considered in the directories.
 #
 # ``COPY_TO``:
 #   Optional, expects a string containing the path to where the file containing
@@ -120,7 +127,9 @@
 #
 # This command searches the directories provided in ``DIRECTORIES`` for files
 # matching any of the patterns provided in ``FILES_PATTERNS``. The obtained list
-# is written to the path specified by ``output``.
+# is written to the path specified by ``output``. A target named ``target_name``
+# will be created and its property ``LIST_FILE`` will be set to contain
+# ``${CMAKE_CURRENT_BINARY_DIR}/${target_name}.list``
 #
 # Example:
 #
@@ -140,10 +149,13 @@
 #
 #   ``h1.h;h2.h``
 #
+# And the target ``target`` will have its property ``LIST_FILE`` set to contain
+# ``${CMAKE_CURRENT_BINARY_DIR}/target.list``
+#
 # ::
 #
 #   extract_symbols(target_name
-#                   HEADERS_LIST_FILE headers_list
+#                   HEADERS_LIST headers_list_target
 #                   [FILTER_PATTERN pattern]
 #                   [COPY_TO output]
 #                  )
@@ -153,9 +165,9 @@
 #   the string given in ``target_name`` will be created in
 #   ``${CMAKE_CURRENT_BINARY_DIR}`` to receive the list of symbols.
 #
-# ``HEADERS_LIST_FILE``:
+# ``HEADERS_LIST``:
-#   Required, expects a path to a file containing the list of header files to be
+#   Required, expects a target with the property ``LIST_FILE`` set, containing a
-#   parsed.
+#   file path. Such file must contain a list of files paths.
 #
 # ``FILTER_PATTERN``:
 #   Optional, expects a string. Only the lines containing the filter pattern
@@ -170,7 +182,9 @@
 # is provided, then only the lines containing the string given in ``pattern``
 # will be considered. It is recommended to provide a ``FILTER_PATTERN`` to mark
 # the lines containing exported function declaration, since this function is
-# experimental and can return wrong symbols when parsing the header files.
+# experimental and can return wrong symbols when parsing the header files. A
+# target named ``target_name`` will be created with the property ``LIST_FILE``
+# set to contain ``${CMAKE_CURRENT_BINARY_DIR}/${target_name}.list``.
 #
 # Example:
 #
@@ -178,11 +192,12 @@
 #
 #   find_package(ABIMap)
 #   extract_symbols("lib.symbols"
-#     HEADERS_LIST_FILE "headers_list"
+#     HEADERS_LIST "headers_target"
 #     FILTER_PATTERN "API_FUNCTION"
 #   )
 #
-# Where headers_list contains::
+# Where ``LIST_FILE`` property in ``headers_target`` points to a file
+# containing::
 #
 #   header1.h;header2.h
 #
@@ -196,25 +211,52 @@
 #
 #   int private_func2(int b);
 #
-# Will result in a file ``lib.symbols`` in ``${CMAKE_CURRENT_BINARY_DIR}`` containing::
+# Will result in a file ``lib.symbols.list`` in ``${CMAKE_CURRENT_BINARY_DIR}``
+# containing::
 #
-#   ``exported_func1;exported_func2``
+#   ``exported_func1``
+#   ``exported_func2``
 #
 
 # Search for python which is required
-find_package(PythonInterp REQUIRED)
+if (ABIMap_FIND_REQURIED)
+    find_package(PythonInterp REQUIRED)
+else()
+    find_package(PythonInterp)
+endif()
 
-# Search for abimap tool used to generate the map files
-find_program(ABIMAP_EXECUTABLE NAMES abimap DOC "path to the abimap executable")
-mark_as_advanced(ABIMAP_EXECUTABLE)
 
-if (NOT ABIMAP_EXECUTABLE AND UNIX)
+if (PYTHONINTERP_FOUND)
-    message(STATUS "Could not find `abimap` in PATH."
+    # Search for abimap tool used to generate the map files
-                   " It can be found in PyPI as `abimap`"
+    find_program(ABIMAP_EXECUTABLE NAMES abimap DOC "path to the abimap executable")
-                   " (try `pip install abimap`)")
+    mark_as_advanced(ABIMAP_EXECUTABLE)
-else ()
+
-    set(ABIMAP_FOUND TRUE)
+    if (NOT ABIMAP_EXECUTABLE AND UNIX)
-endif ()
+        message(STATUS "Could not find `abimap` in PATH."
+                       " It can be found in PyPI as `abimap`"
+                       " (try `pip install abimap`)")
+    endif ()
+
+    if (ABIMAP_EXECUTABLE)
+        # Get the abimap version
+        execute_process(COMMAND ${ABIMAP_EXECUTABLE} version
+                        OUTPUT_VARIABLE ABIMAP_VERSION_STRING
+                        OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+        # If the version string starts with abimap-, strip it
+        if ("abimap" STRLESS_EQUAL ${ABIMAP_VERSION_STRING})
+            string(REGEX REPLACE "abimap-" "" ABIMAP_VERSION_STRING "${ABIMAP_VERSION_STRING}")
+        endif()
+    endif()
+
+    include(FindPackageHandleStandardArgs)
+    find_package_handle_standard_args(ABIMap
+                                      REQUIRED_VARS ABIMAP_EXECUTABLE
+                                      VERSION_VAR ABIMAP_VERSION_STRING)
+endif()
+
+
+if (ABIMAP_FOUND)
 
 # Define helper scripts
 set(_EXTRACT_SYMBOLS_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/ExtractSymbols.cmake)
@@ -224,42 +266,41 @@ set(_GET_FILES_LIST_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/GetFilesList.cmake)
 function(get_file_list _TARGET_NAME)
 
     set(one_value_arguments
-      COPY_TO
+        COPY_TO
     )
 
     set(multi_value_arguments
-      DIRECTORIES
+        DIRECTORIES
-      FILES_PATTERNS
+        FILES_PATTERNS
     )
 
     cmake_parse_arguments(_get_files_list
-      ""
+        ""
-      "${one_value_arguments}"
+        "${one_value_arguments}"
-      "${multi_value_arguments}"
+        "${multi_value_arguments}"
-      ${ARGN}
+        ${ARGN}
     )
 
     # The DIRS argument is required
     if (NOT DEFINED _get_files_list_DIRECTORIES)
         message(FATAL_ERROR "No directories paths provided. Provide a list of"
-                            " directories paths containing header files."
+                            " directories paths containing header files.")
-         )
+    endif()
-     endif()
 
     # The FILES_PATTERNS argument is required
     if (NOT DEFINED _get_files_list_FILES_PATTERNS)
         message(FATAL_ERROR "No matching expressions provided. Provide a list"
-                            " of matching patterns for the header files."
+                            " of matching patterns for the header files.")
-        )
     endif()
 
-    get_filename_component(_get_files_list_OUTPUT_PATH
+    set(_FILES_LIST_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}.list)
-      "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}"
-      ABSOLUTE
-    )
 
-    add_custom_command(
+    get_filename_component(_get_files_list_OUTPUT_PATH
-        OUTPUT ${_TARGET_NAME}
+                           "${_FILES_LIST_OUTPUT_PATH}"
+                           ABSOLUTE)
+
+    add_custom_target(
+        ${_TARGET_NAME}_int ALL
         COMMAND ${CMAKE_COMMAND}
           -DOUTPUT_PATH="${_get_files_list_OUTPUT_PATH}"
           -DDIRECTORIES="${_get_files_list_DIRECTORIES}"
@@ -271,59 +312,90 @@ function(get_file_list _TARGET_NAME)
 
     if (DEFINED _get_files_list_COPY_TO)
         # Copy the generated file back to the COPY_TO
-        add_custom_target(copy_headers_list_${TARGET_NAME} ALL
+        add_custom_target(${_TARGET_NAME} ALL
             COMMAND
-                ${CMAKE_COMMAND} -E copy_if_different ${_TARGET_NAME} ${_get_files_list_COPY_TO}
+              ${CMAKE_COMMAND} -E copy_if_different
-            DEPENDS "${_TARGET_NAME}"
+              ${_FILES_LIST_OUTPUT_PATH} ${_get_files_list_COPY_TO}
+            DEPENDS ${_TARGET_NAME}_int
             COMMENT "Copying ${_TARGET_NAME} to ${_get_files_list_COPY_TO}"
         )
+    else()
+        add_custom_target(${_TARGET_NAME} ALL
+            DEPENDS ${_TARGET_NAME}_int
+        )
     endif()
+
+    set_target_properties(${_TARGET_NAME}
+        PROPERTIES LIST_FILE ${_FILES_LIST_OUTPUT_PATH}
+    )
+
 endfunction()
 
 function(extract_symbols _TARGET_NAME)
 
     set(one_value_arguments
-      FILTER_PATTERN
+        FILTER_PATTERN
-      HEADERS_LIST_FILE
+        HEADERS_LIST
-      COPY_TO
+        COPY_TO
     )
 
     set(multi_value_arguments
     )
 
     cmake_parse_arguments(_extract_symbols
-      ""
+        ""
-      "${one_value_arguments}"
+        "${one_value_arguments}"
-      "${multi_value_arguments}"
+        "${multi_value_arguments}"
-      ${ARGN}
+        ${ARGN}
     )
 
     # The HEADERS_LIST_FILE argument is required
-    if (NOT DEFINED _extract_symbols_HEADERS_LIST_FILE)
+    if (NOT DEFINED _extract_symbols_HEADERS_LIST)
-        message(FATAL_ERROR "No header files given. Provide a list of header"
+        message(FATAL_ERROR "No target provided in HEADERS_LIST. Provide a"
-                            " files containing exported symbols."
+                            " target with the property LIST_FILE set as the"
+                            " path to the file containing the list of headers.")
+    endif()
+
+    get_filename_component(_SYMBOLS_OUTPUT_PATH
+                           "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}.list"
+                           ABSOLUTE
+    )
+
+    get_target_property(_HEADERS_LIST_FILE
+        ${_extract_symbols_HEADERS_LIST}
+        LIST_FILE
+    )
+
+    add_custom_target(
+        ${_TARGET_NAME}_int ALL
+        COMMAND ${CMAKE_COMMAND}
+          -DOUTPUT_PATH="${_SYMBOLS_OUTPUT_PATH}"
+          -DHEADERS_LIST_FILE="${_HEADERS_LIST_FILE}"
+          -DFILTER_PATTERN=${_extract_symbols_FILTER_PATTERN}
+          -P ${_EXTRACT_SYMBOLS_SCRIPT}
+        DEPENDS ${_extract_symbols_HEADERS_LIST}
+        COMMENT "Extracting symbols from headers"
+    )
+
+    if (DEFINED _extract_symbols_COPY_TO)
+        # Copy the generated file back to the COPY_TO
+        add_custom_target(${_TARGET_NAME} ALL
+            COMMAND
+              ${CMAKE_COMMAND} -E copy_if_different
+              ${_SYMBOLS_OUTPUT_PATH} ${_extract_symbols_COPY_TO}
+            DEPENDS ${_TARGET_NAME}_int
+            COMMENT "Copying ${_TARGET_NAME} to ${_extract_symbols_COPY_TO}"
+        )
+    else()
+        add_custom_target(${_TARGET_NAME} ALL
+            DEPENDS ${_TARGET_NAME}_int
         )
     endif()
 
-    get_filename_component(_extract_symbols_OUTPUT_PATH
+    set_target_properties(${_TARGET_NAME}
-      "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}"
+        PROPERTIES LIST_FILE ${_SYMBOLS_OUTPUT_PATH}
-      ABSOLUTE
     )
 
-    add_custom_target(${_TARGET_NAME}
-                      COMMAND ${CMAKE_COMMAND}
-                        -DOUTPUT_PATH="${_extract_symbols_OUTPUT_PATH}"
-                        -DHEADERS_LIST_FILE="${_extract_symbols_HEADERS_LIST_FILE}"
-                        -DFILTER_PATTERN=${_extract_symbols_FILTER_PATTERN}
-                        -P ${_EXTRACT_SYMBOLS_SCRIPT}
-                      DEPENDS ${_extract_symbols_HEADERS_LIST_FILE}
-                      COMMENT "Extracting symbols from headers")
-
-    if (DEFINED _extract_symbols_COPY_TO)
-        file(READ "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}" SYMBOL_CONTENT)
-        string(REPLACE ";" "\n" SYMBOL_CONTENT_NEW "${SYMBOL_CONTENT}")
-        file(WRITE "${_extract_symbols_COPY_TO}" "${SYMBOL_CONTENT_NEW}")
-    endif()
 endfunction()
 
 function(generate_map_file _TARGET_NAME)
@@ -344,36 +416,42 @@ function(generate_map_file _TARGET_NAME)
     )
 
     cmake_parse_arguments(_generate_map_file
-      "${options}"
+        "${options}"
-      "${one_value_arguments}"
+        "${one_value_arguments}"
-      "${multi_value_arguments}"
+        "${multi_value_arguments}"
-      ${ARGN}
+        ${ARGN}
     )
 
     if (NOT DEFINED _generate_map_file_SYMBOLS)
-        message(FATAL_ERROR "No symbols file provided."
+        message(FATAL_ERROR "No target provided in SYMBOLS. Provide a target"
-        )
+                            " with the property LIST_FILE set as the path to"
+                            " the file containing the list of symbols.")
     endif()
 
     if (NOT DEFINED _generate_map_file_RELEASE_NAME_VERSION)
         message(FATAL_ERROR "Release name and version not provided."
-          " (e.g. libname_1_0_0"
+          " (e.g. libname_1_0_0)")
-        )
     endif()
 
-    # Set generated map file path
+
-    get_filename_component(_generate_map_file_OUTPUT_PATH
+    get_target_property(_SYMBOLS_FILE
-      "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}"
+        ${_generate_map_file_SYMBOLS}
-      ABSOLUTE
+        LIST_FILE
     )
 
-    add_custom_command(
+    # Set generated map file path
-        OUTPUT ${_TARGET_NAME}
+    get_filename_component(_MAP_OUTPUT_PATH
+                           "${CMAKE_CURRENT_BINARY_DIR}/${_TARGET_NAME}"
+                           ABSOLUTE
+    )
+
+    add_custom_target(
+        ${_TARGET_NAME}_int ALL
         COMMAND ${CMAKE_COMMAND}
           -DABIMAP_EXECUTABLE=${ABIMAP_EXECUTABLE}
-          -DSYMBOLS="${_generate_map_file_SYMBOLS}"
+          -DSYMBOLS="${_SYMBOLS_FILE}"
           -DCURRENT_MAP=${_generate_map_file_CURRENT_MAP}
-          -DOUTPUT_PATH="${_generate_map_file_OUTPUT_PATH}"
+          -DOUTPUT_PATH="${_MAP_OUTPUT_PATH}"
           -DFINAL=${_generate_map_file_FINAL}
           -DBREAK_ABI=${_generate_map_file_BREAK_ABI}
           -DRELEASE_NAME_VERSION=${_generate_map_file_RELEASE_NAME_VERSION}
@@ -382,13 +460,27 @@ function(generate_map_file _TARGET_NAME)
         COMMENT "Generating the map ${_TARGET_NAME}"
     )
 
+    # Add a custom command setting the map as OUTPUT to allow it to be added as
+    # a generated source
+    add_custom_command(
+        OUTPUT ${_MAP_OUTPUT_PATH}
+        DEPENDS ${_TARGET_NAME}
+    )
+
     if (DEFINED _generate_map_file_COPY_TO)
         # Copy the generated map back to the COPY_TO
-        add_custom_target(copy_map_${_TARGET_NAME} ALL
+        add_custom_target(${_TARGET_NAME} ALL
             COMMAND
-                ${CMAKE_COMMAND} -E copy_if_different ${_TARGET_NAME} ${_generate_map_file_COPY_TO}
+              ${CMAKE_COMMAND} -E copy_if_different ${_MAP_OUTPUT_PATH}
-            DEPENDS "${_TARGET_NAME}"
+              ${_generate_map_file_COPY_TO}
-            COMMENT "Copying ${_TARGET_NAME} to ${_generate_map_file_COPY_TO}"
+            DEPENDS ${_TARGET_NAME}_int
+            COMMENT "Copying ${_MAP_OUTPUT_PATH} to ${_generate_map_file_COPY_TO}"
+        )
+    else()
+        add_custom_target(${_TARGET_NAME} ALL
+            DEPENDS ${_TARGET_NAME}_int
         )
     endif()
 endfunction()
+
+endif (ABIMAP_FOUND)

cmake/Modules/FindGCrypt.cmake

@@ -49,7 +49,15 @@ find_library(GCRYPT_LIBRARY
     PATH_SUFFIXES
         lib
 )
-set(GCRYPT_LIBRARIES ${GCRYPT_LIBRARY})
+find_library(GCRYPT_ERROR_LIBRARY
+    NAMES
+        gpg-error
+        libgpg-error-0
+        libgpg-error6-0
+    HINTS
+        ${_GCRYPT_ROOT_HINTS_AND_PATHS}
+)
+set(GCRYPT_LIBRARIES ${GCRYPT_LIBRARY}  ${GCRYPT_ERROR_LIBRARY})
 
 if (GCRYPT_INCLUDE_DIR)
     file(STRINGS "${GCRYPT_INCLUDE_DIR}/gcrypt.h" _gcrypt_version_str REGEX "^#define GCRYPT_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]")

cmake/Modules/FindNSIS.cmake

@@ -21,17 +21,16 @@
 #
 
 if (WIN32)
-    set(_NSIS_ROOT_HINTS
+    set(_x86 "(x86)")
-        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\NSIS;Default]")
 
     set(_NSIS_ROOT_PATHS
-        $ENV{PROGRAMFILES}/NSIS)
+        "$ENV{ProgramFiles}/NSIS"
+        "$ENV{ProgramFiles${_x86}}/NSIS"
+        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\NSIS;Default]")
 
     find_path(NSIS_ROOT_PATH
         NAMES
             Include/Library.nsh
-        HINTS
-            ${_NSIS_ROOT_HINTS}
         PATHS
             ${_NSIS_ROOT_PATHS}
         )

cmake/Modules/UseDoxygen.cmake

@@ -1,140 +0,0 @@
-# - Run Doxygen
-#
-# Adds a doxygen target that runs doxygen to generate the html
-# and optionally the LaTeX API documentation.
-# The doxygen target is added to the doc target as a dependency.
-# i.e.: the API documentation is built with:
-#  make doc
-#
-# USAGE: GLOBAL INSTALL
-#
-# Install it with:
-#  cmake ./ && sudo make install
-# Add the following to the CMakeLists.txt of your project:
-#  include(UseDoxygen OPTIONAL)
-# Optionally copy Doxyfile.in in the directory of CMakeLists.txt and edit it.
-#
-# USAGE: INCLUDE IN PROJECT
-#
-#  set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
-#  include(UseDoxygen)
-# Add the Doxyfile.in and UseDoxygen.cmake files to the projects source directory.
-#
-#
-# CONFIGURATION
-#
-# To configure Doxygen you can edit Doxyfile.in and set some variables in cmake.
-# Variables you may define are:
-#  DOXYFILE_SOURCE_DIR - Path where the Doxygen input files are.
-#  	Defaults to the current source directory.
-#  DOXYFILE_EXTRA_SOURCES - Additional source diretories/files for Doxygen to scan.
-#  	The Paths should be in double quotes and separated by space. e.g.:
-#  	 "${CMAKE_CURRENT_BINARY_DIR}/foo.c" "${CMAKE_CURRENT_BINARY_DIR}/bar/"
-#  
-#  DOXYFILE_OUTPUT_DIR - Path where the Doxygen output is stored.
-#  	Defaults to "${CMAKE_CURRENT_BINARY_DIR}/doc".
-#  
-#  DOXYFILE_LATEX - ON/OFF; Set to "ON" if you want the LaTeX documentation
-#  	to be built.
-#  DOXYFILE_LATEX_DIR - Directory relative to DOXYFILE_OUTPUT_DIR where
-#  	the Doxygen LaTeX output is stored. Defaults to "latex".
-#  
-#  DOXYFILE_HTML_DIR - Directory relative to DOXYFILE_OUTPUT_DIR where
-#  	the Doxygen html output is stored. Defaults to "html".
-#
-
-#
-#  Copyright (c) 2009, 2010, 2011 Tobias Rautenkranz <tobias@rautenkranz.ch>
-#
-#  Redistribution and use is allowed according to the terms of the New
-#  BSD license.
-#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
-#
-
-macro(usedoxygen_set_default name value type docstring)
-	if(NOT DEFINED "${name}")
-		set("${name}" "${value}" CACHE "${type}" "${docstring}")
-	endif()
-endmacro()
-
-find_package(Doxygen)
-
-if(DOXYGEN_FOUND)
-	find_file(DOXYFILE_IN "Doxyfile.in"
-			PATHS "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_ROOT}/Modules/"
-			NO_DEFAULT_PATH
-			DOC "Path to the doxygen configuration template file")
-	set(DOXYFILE "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile")
-	include(FindPackageHandleStandardArgs)
-	find_package_handle_standard_args(DOXYFILE_IN DEFAULT_MSG "DOXYFILE_IN")
-endif()
-
-if(DOXYGEN_FOUND AND DOXYFILE_IN_FOUND)
-	usedoxygen_set_default(DOXYFILE_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/doc"
-		PATH "Doxygen output directory")
-	usedoxygen_set_default(DOXYFILE_HTML_DIR "html"
-		STRING "Doxygen HTML output directory")
-	usedoxygen_set_default(DOXYFILE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}"
-		PATH "Input files source directory")
-	usedoxygen_set_default(DOXYFILE_EXTRA_SOURCE_DIRS ""
-		STRING "Additional source files/directories separated by space")
-	set(DOXYFILE_SOURCE_DIRS "\"${DOXYFILE_SOURCE_DIR}\" ${DOXYFILE_EXTRA_SOURCES}")
-
-	usedoxygen_set_default(DOXYFILE_LATEX YES BOOL "Generate LaTeX API documentation" OFF)
-	usedoxygen_set_default(DOXYFILE_LATEX_DIR "latex" STRING "LaTex output directory")
-
-	mark_as_advanced(DOXYFILE_OUTPUT_DIR DOXYFILE_HTML_DIR DOXYFILE_LATEX_DIR
-		DOXYFILE_SOURCE_DIR DOXYFILE_EXTRA_SOURCE_DIRS DOXYFILE_IN)
-
-
-	set_property(DIRECTORY 
-		APPEND PROPERTY
-		ADDITIONAL_MAKE_CLEAN_FILES
-		"${DOXYFILE_OUTPUT_DIR}/${DOXYFILE_HTML_DIR}")
-
-	add_custom_target(doxygen
-		COMMAND "${DOXYGEN_EXECUTABLE}"
-			"${DOXYFILE}" 
-		COMMENT "Writing documentation to ${DOXYFILE_OUTPUT_DIR}..."
-		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
-
-	set(DOXYFILE_DOT "NO")
-	if(DOXYGEN_DOT_EXECUTABLE)
-		set(DOXYFILE_DOT "YES")
-	endif()
-
-	## LaTeX
-	set(DOXYFILE_PDFLATEX "NO")
-
-	set_property(DIRECTORY APPEND PROPERTY
-		ADDITIONAL_MAKE_CLEAN_FILES
-		"${DOXYFILE_OUTPUT_DIR}/${DOXYFILE_LATEX_DIR}")
-
-	if(DOXYFILE_LATEX STREQUAL "ON")
-		set(DOXYFILE_GENERATE_LATEX "YES")
-		find_package(LATEX)
-		find_program(DOXYFILE_MAKE make)
-		mark_as_advanced(DOXYFILE_MAKE)
-		if(LATEX_COMPILER AND MAKEINDEX_COMPILER AND DOXYFILE_MAKE)
-			if(PDFLATEX_COMPILER)
-				set(DOXYFILE_PDFLATEX "YES")
-			endif()
-
-			add_custom_command(TARGET doxygen
-				POST_BUILD
-				COMMAND "${DOXYFILE_MAKE}"
-				COMMENT	"Running LaTeX for Doxygen documentation in ${DOXYFILE_OUTPUT_DIR}/${DOXYFILE_LATEX_DIR}..."
-				WORKING_DIRECTORY "${DOXYFILE_OUTPUT_DIR}/${DOXYFILE_LATEX_DIR}")
-		else()
-			set(DOXYGEN_LATEX "NO")
-		endif()
-	else()
-		set(DOXYFILE_GENERATE_LATEX "NO")
-	endif()
-
-
-	configure_file("${DOXYFILE_IN}" "${DOXYFILE}" @ONLY)
-
-	add_custom_target(doc)
-	add_dependencies(doc doxygen)
-endif()

config.h.cmake

@@ -1,8 +1,8 @@
 /* Name of package */
-#cmakedefine PACKAGE "${APPLICATION_NAME}"
+#cmakedefine PACKAGE "${PROJECT_NAME}"
 
 /* Version number of package */
-#cmakedefine VERSION "${APPLICATION_VERSION}"
+#cmakedefine VERSION "${PROJECT_VERSION}"
 
 #cmakedefine LOCALEDIR "${LOCALE_INSTALL_DIR}"
 #cmakedefine DATADIR "${DATADIR}"
@@ -23,6 +23,9 @@
 /* Define to 1 if you have the <glob.h> header file. */
 #cmakedefine HAVE_GLOB_H 1
 
+/* Define to 1 if you have the <valgrind/valgrind.h> header file. */
+#cmakedefine HAVE_VALGRIND_VALGRIND_H 1
+
 /* Define to 1 if you have the <pty.h> header file. */
 #cmakedefine HAVE_PTY_H 1
 
@@ -89,6 +92,9 @@
 /* Define to 1 if you have DSA */
 #cmakedefine HAVE_DSA 1
 
+/* Define to 1 if you have gl_flags as a glob_t sturct member */
+#cmakedefine HAVE_GLOB_GL_FLAGS_MEMBER 1
+
 /*************************** FUNCTIONS ***************************/
 
 /* Define to 1 if you have the `EVP_aes128_ctr' function. */
@@ -97,6 +103,9 @@
 /* Define to 1 if you have the `EVP_aes128_cbc' function. */
 #cmakedefine HAVE_OPENSSL_EVP_AES_CBC 1
 
+/* Define to 1 if you have the `EVP_aes128_gcm' function. */
+#cmakedefine HAVE_OPENSSL_EVP_AES_GCM 1
+
 /* Define to 1 if you have the `CRYPTO_THREADID_set_callback' function. */
 #cmakedefine HAVE_OPENSSL_CRYPTO_THREADID_SET_CALLBACK 1
 
@@ -106,6 +115,9 @@
 /* Define to 1 if you have the `EVP_CIPHER_CTX_new' function. */
 #cmakedefine HAVE_OPENSSL_EVP_CIPHER_CTX_NEW 1
 
+/* Define to 1 if you have the `OPENSSL_ia32cap_loc' function. */
+#cmakedefine HAVE_OPENSSL_IA32CAP_LOC 1
+
 /* Define to 1 if you have the `snprintf' function. */
 #cmakedefine HAVE_SNPRINTF 1
 
@@ -130,6 +142,9 @@
 /* Define to 1 if you have the `strncpy' function. */
 #cmakedefine HAVE_STRNCPY 1
 
+/* Define to 1 if you have the `strndup' function. */
+#cmakedefine HAVE_STRNDUP 1
+
 /* Define to 1 if you have the `cfmakeraw' function. */
 #cmakedefine HAVE_CFMAKERAW 1
 
@@ -172,6 +187,9 @@
 /* Define to 1 if you have the `SecureZeroMemory' function. */
 #cmakedefine HAVE_SECURE_ZERO_MEMORY 1
 
+/* Define to 1 if you have the `cmocka_set_test_filter' function. */
+#cmakedefine HAVE_CMOCKA_SET_TEST_FILTER 1
+
 /*************************** LIBRARIES ***************************/
 
 /* Define to 1 if you have the `crypto' library (-lcrypto). */
@@ -186,12 +204,19 @@
 /* Define to 1 if you have the `pthread' library (-lpthread). */
 #cmakedefine HAVE_PTHREAD 1
 
+/* Define to 1 if you have the `cmocka' library (-lcmocka). */
+#cmakedefine HAVE_CMOCKA 1
+
 /**************************** OPTIONS ****************************/
 
 #cmakedefine HAVE_GCC_THREAD_LOCAL_STORAGE 1
 #cmakedefine HAVE_MSC_THREAD_LOCAL_STORAGE 1
 
 #cmakedefine HAVE_FALLTHROUGH_ATTRIBUTE 1
+#cmakedefine HAVE_UNUSED_ATTRIBUTE 1
+
+#cmakedefine HAVE_CONSTRUCTOR_ATTRIBUTE 1
+#cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1
 
 #cmakedefine HAVE_GCC_VOLATILE_MEMORY_PROTECTION 1
 #cmakedefine HAVE_GCC_NARG_MACRO 1

doc/CMakeLists.txt

@@ -1,5 +1,46 @@
 #
 # Build the documentation
 #
-include(UseDoxygen OPTIONAL)
+if (${CMAKE_VERSION} VERSION_GREATER "3.8.99")
 
+find_package(Doxygen)
+
+if (DOXYGEN_FOUND)
+    set(DOXYGEN_PROJECT_NAME ${PROJECT_NAME})
+    set(DOXYGEN_PROJECT_NUMBER ${PROJECT_VERSION})
+    set(DOXYGEN_PROJECT_BRIEF "The SSH library")
+
+    set(DOXYGEN_TAB_SIZE 4)
+    set(DOXYGEN_OPTIMIZE_OUTPUT_FOR_C YES)
+    set(DOXYGEN_MARKDOWN_SUPPORT YES)
+
+    set(DOXYGEN_PREDEFINED DOXYGEN
+                           PRINTF_ATTRIBUTE(x,y))
+
+    set(DOXYGEN_EXCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/that_style)
+    set(DOXYGEN_HTML_HEADER ${CMAKE_CURRENT_SOURCE_DIR}/that_style/header.html)
+    set(DOXYGEN_HTML_EXTRA_STYLESHEET ${CMAKE_CURRENT_SOURCE_DIR}/that_style/that_style.css)
+    set(DOXYGEN_HTML_EXTRA_FILES ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/nav_edge_left.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/nav_edge_right.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/nav_edge_inter.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/sync_off.png
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/sync_on.png
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/splitbar_handle.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/doc.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/mag_glass.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/folderclosed.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/img/folderopen.svg
+                                 ${CMAKE_CURRENT_SOURCE_DIR}/that_style/js/striped_bg.js)
+
+    # This updates the Doxyfile if we do changes here
+    set(_doxyfile_template "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in")
+    set(_target_doxyfile "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.docs")
+    configure_file("${_doxyfile_template}" "${_target_doxyfile}")
+
+    doxygen_add_docs(docs
+                     ${CMAKE_SOURCE_DIR}/include/libssh
+                     ${CMAKE_SOURCE_DIR}/src
+                     ${CMAKE_CURRENT_SOURCE_DIR})
+endif() # DOXYGEN_FOUND
+
+endif() # CMAKE_VERSION

doc/authentication.dox

@@ -187,7 +187,7 @@ keyboard-interactive authentication, coming from the RFC itself (rfc4256):
   the name and prompts. If the server presents names or prompts longer than 30
   characters, the client MAY truncate these fields to the length it can
   display. If the client does truncate any fields, there MUST be an obvious
-  indication that such truncation has occured.
+  indication that such truncation has occurred.
 
   The instruction field SHOULD NOT be truncated. Clients SHOULD use control
   character filtering as discussed in [SSH-ARCH] to avoid attacks by

doc/forwarding.dox

@@ -4,7 +4,7 @@
 
 Port forwarding comes in SSH protocol in two different flavours:
 direct or reverse port forwarding. Direct port forwarding is also
-named local port forwardind, and reverse port forwarding is also called
+named local port forwarding, and reverse port forwarding is also called
 remote port forwarding. SSH also allows X11 tunnels.
 
 
@@ -26,12 +26,12 @@ Mail client application   Google Mail
     SSH client   =====>   SSH server
 
 Legend:
---P-->: port connexion through port P
+--P-->: port connections through port P
 =====>: SSH tunnel
 @endverbatim
 A mail client connects to port 5555 of a client. An encrypted tunnel is
 established to the server. The server connects to port 143 of Google Mail (the
-end point). Now the local mail client can retreive mail.
+end point). Now the local mail client can retrieve mail.
 
 
 @subsection forwarding_reverse Reverse port forwarding
@@ -51,7 +51,7 @@ Example of use of reverse port forwarding:
     SSH client   <=====   SSH server
 
 Legend:
---P-->: port connexion through port P
+--P-->: port connections through port P
 =====>: SSH tunnel
 @endverbatim
 In this example, the SSH client establishes the tunnel,
@@ -148,9 +148,9 @@ To do reverse port forwarding, call ssh_channel_listen_forward(),
 then ssh_channel_accept_forward().
 
 When you call ssh_channel_listen_forward(), you can let the remote server
-chose the non-priviledged port it should listen to. Otherwise, you can chose
+chose the non-privileged port it should listen to. Otherwise, you can chose
-your own priviledged or non-priviledged port. Beware that you should have
+your own privileged or non-privileged port. Beware that you should have
-administrative priviledges on the remote server to open a priviledged port
+administrative privileges on the remote server to open a privileged port
 (port number < 1024).
 
 Below is an example of a very rough web server waiting for connections on port

doc/guided_tour.dox

@@ -42,7 +42,7 @@ you'll usually open a "sftp session" or a "scp session".
 
 The most important object in a SSH connection is the SSH session. In order
 to allocate a new SSH session, you use ssh_new(). Don't forget to
-always verify that the allocation successed.
+always verify that the allocation succeeded.
 @code
 #include <libssh/libssh.h>
 #include <stdlib.h>
@@ -285,9 +285,9 @@ int verify_knownhost(ssh_session session)
 
 The authentication process is the way a service provider can identify a
 user and verify his/her identity. The authorization process is about enabling
-the authenticated user the access to ressources. In SSH, the two concepts
+the authenticated user the access to resources. In SSH, the two concepts
 are linked. After authentication, the server can grant the user access to
-several ressources such as port forwarding, shell, sftp subsystem, and so on.
+several resources such as port forwarding, shell, sftp subsystem, and so on.
 
 libssh supports several methods of authentication:
  - "none" method. This method allows to get the available authentications
@@ -338,7 +338,7 @@ int main()
   }
 
   // Verify the server's identity
-  // For the source code of verify_knowhost(), check previous example
+  // For the source code of verify_knownhost(), check previous example
   if (verify_knownhost(my_ssh_session) < 0)
   {
     ssh_disconnect(my_ssh_session);
@@ -456,7 +456,7 @@ might be recoverable. SSH_FATAL means the connection has an important
 problem and isn't probably recoverable.
 
 Most of time, the error returned are SSH_FATAL, but some functions
-(generaly the ssh_request_xxx ones) may fail because of server denying request.
+(generally the ssh_request_xxx ones) may fail because of server denying request.
 In these cases, SSH_REQUEST_DENIED is returned.
 
 For thread safety, errors are bound to ssh_session objects.

doc/introduction.dox

@@ -12,13 +12,13 @@ mean that you should not try to know about and understand these details.
 
 libssh is a Free Software / Open Source project. The libssh library
 is distributed under LGPL license. The libssh project has nothing to do with
-"libssh2", which is a completly different and independant project.
+"libssh2", which is a completely different and independent project.
 
 libssh can run on top of either libgcrypt or libcrypto,
 two general-purpose cryptographic libraries.
 
 This tutorial concentrates for its main part on the "client" side of libssh.
-To learn how to accept incoming SSH connexions (how to write a SSH server),
+To learn how to accept incoming SSH connections (how to write a SSH server),
 you'll have to jump to the end of this document.
 
 This tutorial describes libssh version 0.5.0. This version is a little different

doc/mainpage.dox

@@ -20,11 +20,11 @@ the interesting functions as you go.
 The libssh library provides:
 
  - <strong>Key Exchange Methods</strong>: <i>curve25519-sha256, curve25519-sha256@libssh.org, ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521</i>, diffie-hellman-group1-sha1, diffie-hellman-group14-sha1
- - <strong>Hostkey Types</strong>: <i>ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521</i>, ssh-dss, ssh-rsa
+ - <strong>Public Key Algorithms</strong>: ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-rsa, rsa-sha2-512, rsa-sha2-256,ssh-dss
  - <strong>Ciphers</strong>: <i>aes256-ctr, aes192-ctr, aes128-ctr</i>, aes256-cbc (rijndael-cbc@lysator.liu.se), aes192-cbc, aes128-cbc, 3des-cbc, blowfish-cbc, none
  - <strong>Compression Schemes</strong>: zlib, <i>zlib@openssh.com</i>, none
  - <strong>MAC hashes</strong>: hmac-sha1, hmac-sha2-256, hmac-sha2-384, hmac-sha2-512, hmac-md5, none
- - <strong>Authentication</strong>: none, password, public-key, hostbased, keyboard-interactive, <i>gssapi-with-mic</i>
+ - <strong>Authentication</strong>: none, password, public-key, keyboard-interactive, <i>gssapi-with-mic</i>
  - <strong>Channels</strong>: shell, exec (incl. SCP wrapper), direct-tcpip, subsystem, <i>auth-agent-req@openssh.com</i>
  - <strong>Global Requests</strong>: tcpip-forward, forwarded-tcpip
  - <strong>Channel Requests</strong>: x11, pty, <i>exit-status, signal, exit-signal, keepalive@openssh.com, auth-agent-req@openssh.com</i>

doc/scp.dox

@@ -2,7 +2,7 @@
 @page libssh_tutor_scp Chapter 6: The SCP subsystem
 @section scp_subsystem The SCP subsystem
 
-The SCP subsystem has far less functionnality than the SFTP subsystem.
+The SCP subsystem has far less functionality than the SFTP subsystem.
 However, if you only need to copy files from and to the remote system,
 it does its job.
 
@@ -210,7 +210,7 @@ int scp_receive(ssh_session session, ssh_scp scp)
   size = ssh_scp_request_get_size(scp);
   filename = strdup(ssh_scp_request_get_filename(scp));
   mode = ssh_scp_request_get_permissions(scp);
-  printf("Receiving file %s, size %d, permisssions 0%o\n",
+  printf("Receiving file %s, size %d, permissions 0%o\n",
           filename, size, mode);
   free(filename);
 

doc/sftp.dox

@@ -100,7 +100,7 @@ Possible errors are:
 
 @subsection sftp_mkdir Creating a directory
 
-The function sftp_mkdir() tahes the "SFTP session" we juste created as
+The function sftp_mkdir() takes the "SFTP session" we just created as
 its first argument. It also needs the name of the file to create, and the
 desired permissions. The permissions are the same as for the usual mkdir()
 function. To get a comprehensive list of the available permissions, use the
@@ -363,14 +363,14 @@ They use a new handle_type, "sftp_dir", which gives access to the
 directory being read.
 
 In addition, sftp_readdir() returns a "sftp_attributes" which is a pointer
-to a structure with informations about a directory entry:
+to a structure with information about a directory entry:
   - name: the name of the file or directory
   - size: its size in bytes
   - etc.
 
 sftp_readdir() might return NULL under two conditions:
   - when the end of the directory has been met
-  - when an error occured
+  - when an error occurred
 
 To tell the difference, call sftp_dir_eof().
 

doc/shell.dox

@@ -245,7 +245,7 @@ provide a more elegant way to wait for data coming from many sources.
 
 The functions ssh_select() and ssh_channel_select() remind of the standard
 UNIX select(2) function. The idea is to wait for "something" to happen:
-incoming data to be read, outcoming data to block, or an exception to
+incoming data to be read, outgoing data to block, or an exception to
 occur. Both these functions do a "passive wait", i.e. you can safely use
 them repeatedly in a loop, it will not consume exaggerate processor time
 and make your computer unresponsive. It is quite common to use these

doc/that_style/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Jan-Lukas Wynen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

doc/that_style/README.md

@@ -0,0 +1,22 @@
+# that style
+A plain, more modern HTML style for Doxygen
+
+## Requirements
+- Doxygen (tested with version 1.8.13)
+- *optional*: a sass/scss compiler if you want to modify the style
+
+## Simple usage
+Tell Doxygen about the files for that style as shown in [doxyfile.conf](doxyfile.conf). You might need to adjust the
+paths depending on where you installed that style.
+When you run Doxygen, all files are copied into to generated HTML folder. So you don't need to keep the originals around
+unless you want to re-generate the documentation.
+
+## Advanced
+that style uses a custom javascript to hack some nice stripes into some tables. It has to be loaded from HTML. Hence you need
+to use the provided custom header. Since its default content may change when Doxygen is updated, there might be syntax error in
+the generated HTML. If this is the case, you can remove the custom header (adjust your doxyfile.conf). This has no
+disadvantages other than removing the stripes.
+
+[that_style.css](that_style.css) was generated from the scss files in the folder [sass](sass). If you want to change the style,
+use those files in order to have better control. For instance, you can easily change most colors by modifying the variables
+in the beginning of [that_style.scss](sass/that_style.scss).

doc/that_style/header.html

@@ -0,0 +1,56 @@
+<!-- HTML header for doxygen 1.8.13-->
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<head>
+<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
+<meta http-equiv="X-UA-Compatible" content="IE=9"/>
+<meta name="generator" content="Doxygen $doxygenversion"/>
+<meta name="viewport" content="width=device-width, initial-scale=1"/>
+<!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
+<!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
+<link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
+<script type="text/javascript" src="$relpath^jquery.js"></script>
+<script type="text/javascript" src="$relpath^dynsections.js"></script>
+$treeview
+$search
+$mathjax
+<link href="$relpath^$stylesheet" rel="stylesheet" type="text/css" />
+<script src="$relpath^striped_bg.js"></script>
+$extrastylesheet
+</head>
+<body>
+<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
+
+<!--BEGIN TITLEAREA-->
+<div id="titlearea">
+<table cellspacing="0" cellpadding="0">
+ <tbody>
+ <tr style="height: 56px;">
+  <!--BEGIN PROJECT_LOGO-->
+  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"/></td>
+  <!--END PROJECT_LOGO-->
+  <!--BEGIN PROJECT_NAME-->
+  <td id="projectalign" style="padding-left: 0.5em;">
+   <div id="projectname">$projectname
+   <!--BEGIN PROJECT_NUMBER-->&#160;<span id="projectnumber">$projectnumber</span><!--END PROJECT_NUMBER-->
+   </div>
+   <!--BEGIN PROJECT_BRIEF--><div id="projectbrief">$projectbrief</div><!--END PROJECT_BRIEF-->
+  </td>
+  <!--END PROJECT_NAME-->
+  <!--BEGIN !PROJECT_NAME-->
+   <!--BEGIN PROJECT_BRIEF-->
+    <td style="padding-left: 0.5em;">
+    <div id="projectbrief">$projectbrief</div>
+    </td>
+   <!--END PROJECT_BRIEF-->
+  <!--END !PROJECT_NAME-->
+  <!--BEGIN DISABLE_INDEX-->
+   <!--BEGIN SEARCHENGINE-->
+   <td>$searchbox</td>
+   <!--END SEARCHENGINE-->
+  <!--END DISABLE_INDEX-->
+ </tr>
+ </tbody>
+</table>
+</div>
+<!--END TITLEAREA-->
+<!-- end header part -->

doc/that_style/img/doc.svg

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doc/that_style/img/folderclosed.svg

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doc/that_style/img/folderopen.svg

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doc/that_style/img/nav_edge_inter.svg

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+  </g>
+</svg>

doc/that_style/js/striped_bg.js

@@ -0,0 +1,32 @@
+// Adds extra CSS classes "even" and "odd" to .memberdecls to allow
+// striped backgrounds.
+function MemberDeclsStriper () {
+    var counter = 0;
+    
+    this.stripe = function() {
+        $(".memberdecls tbody").children().each(function(i) {
+            
+            // reset counter at every heading -> always start with even
+            if ($(this).is(".heading")) {
+                counter = 0;
+            }
+
+            // add extra classes
+            if (counter % 2 == 1) {
+                $(this).addClass("odd");
+            }
+            else {
+                $(this).addClass("even");
+            }
+
+            // advance counter at every separator
+            // this is the only way to reliably detect which table rows belong together
+            if ($(this).is('[class^="separator"]')) {
+                counter++;
+            }
+        });
+    }
+}
+
+// execute the function
+$(document).ready(new MemberDeclsStriper().stripe);

doc/threading.dox

@@ -3,14 +3,15 @@
 @section threads_with_libssh How to use libssh with threads
 
 libssh may be used in multithreaded applications, but under several conditions :
- - Threading must be initialized during the initialization of libssh. This 
+ - Your system must support libpthread or, in Windows environment,
-   initialization must be done outside of any threading context.
+   CriticalSection based mutex control.
- - If pthreads is being used by your application (or your framework's backend),
+ - Since version 0.8.0, threads initialization is called automatically in the
-   you must link with libssh_threads dynamic library and initialize 
+   library constructor if libssh is dynamically linked. This means it is no
-   threading with the ssh_threads_pthreads threading object.
+   longer necessary to call ssh_init()/ssh_finalize().
- - If an other threading library is being used by your application, you must 
+ - If libssh is statically linked, threading must be initialized by calling
-   implement all the methods of the ssh_threads_callbacks_struct structure
+   ssh_init() before using any of libssh provided functions. This initialization
-   and initialize libssh with it.
+   must be done outside of any threading context. Don't forget to call
+   ssh_finalize() to avoid memory leak
  - At all times, you may use different sessions inside threads, make parallel
    connections, read/write on different sessions and so on. You *cannot* use a
    single session (or channels for a single session) in several threads at the same
@@ -19,48 +20,33 @@ libssh may be used in multithreaded applications, but under several conditions :
 
 @subsection threads_init Initialization of threads
 
-To initialize threading, you must first select the threading model you want to
+Since version 0.8.0, it is no longer necessary to call ssh_init()/ssh_finalize()
-use, using ssh_threads_set_callbacks(), then call ssh_init().
+if libssh is dynamically linked.
 
-@code 
+If libssh is statically linked, call ssh_init() before using any of libssh
-#include <libssh/callbacks.h>
+provided functions.
-...
-ssh_threads_set_callbacks(ssh_threads_get_noop());
-ssh_init();
-@endcode
-
-ssh_threads_noop is the threading structure that does nothing. It's the
-threading callbacks being used by default when you're not using threading.
 
 @subsection threads_pthread Using libpthread with libssh
 
-If your application is using libpthread, you may simply use the libpthread
+Since version 0.8.0, libpthread is the default threads library used by libssh.
-threading backend:
 
-@code
+To use libpthread, simply link it to you application.
-#include <libssh/callbacks.h>
-...
-ssh_threads_set_callbacks(ssh_threads_get_pthread());
-ssh_init();
-@endcode
-
-However, you must be sure to link with the library ssh_threads. If 
-you're using gcc, you must use the commandline
-@code
-gcc -o output input.c -lssh -lssh_threads
-@endcode 
 
+If you are using libssh statically linked, don't forget to call ssh_init()
+before using any of libssh provided functions (and ssh_finalize() in  the end).
 
 @subsection threads_other Using another threading library
 
-You must find your way in the ssh_threads_callbacks_struct structure. You must
+Since version 0.8.0, libssh does not support custom threading libraries.
-implement the following methods :
+The change makes sense since the newer versions for libcrypto (OpenSSL) and
-- mutex_lock
+libgcrypt don't support custom threading libraries.
-- mutex_unlock
+
-- mutex_init
+The default used threading library is libpthread.
-- mutex_destroy
+Alternatively, in Windows environment, CriticalSection based mutex control can
-- thread_id
+be used.
+
+If your system does not support libpthread nor CriticalSection based mutex
+control, unfortunately, you cannot use libssh in multithreaded scenarios.
 
-libgcrypt 1.6 and bigger backend does not support custom callback. Using anything else than pthreads (ssh_threads_get_pthread()) here will fail.
 Good luck !
 */

examples/CMakeLists.txt

@@ -17,46 +17,57 @@ endif()
 
 if (UNIX AND NOT WIN32)
     add_executable(libssh_scp libssh_scp.c ${examples_SRCS})
+    target_compile_options(libssh_scp PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
     target_link_libraries(libssh_scp ${LIBSSH_SHARED_LIBRARY})
 
     add_executable(scp_download scp_download.c ${examples_SRCS})
+    target_compile_options(scp_download PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
     target_link_libraries(scp_download ${LIBSSH_SHARED_LIBRARY})
 
     add_executable(sshnetcat sshnetcat.c ${examples_SRCS})
+    target_compile_options(sshnetcat PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
     target_link_libraries(sshnetcat ${LIBSSH_SHARED_LIBRARY})
 
     if (WITH_SFTP)
         add_executable(samplesftp samplesftp.c ${examples_SRCS})
+        target_compile_options(samplesftp PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
         target_link_libraries(samplesftp ${LIBSSH_SHARED_LIBRARY})
     endif (WITH_SFTP)
 
     add_executable(ssh-client ssh_client.c ${examples_SRCS})
+    target_compile_options(ssh-client PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
     target_link_libraries(ssh-client ${LIBSSH_SHARED_LIBRARY})
 
     if (WITH_SERVER AND (ARGP_LIBRARY OR HAVE_ARGP_H))
         if (HAVE_LIBUTIL)
             add_executable(ssh_server_fork ssh_server_fork.c)
+            target_compile_options(ssh_server_fork PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
             target_link_libraries(ssh_server_fork ${LIBSSH_SHARED_LIBRARY} ${ARGP_LIBRARY} util)
         endif (HAVE_LIBUTIL)
 
         if (WITH_GSSAPI AND GSSAPI_FOUND)
             add_executable(samplesshd-cb samplesshd-cb.c)
+            target_compile_options(samplesshd-cb PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
             target_link_libraries(samplesshd-cb ${LIBSSH_SHARED_LIBRARY} ${ARGP_LIBRARY})
 
             add_executable(proxy proxy.c)
+            target_compile_options(proxy PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
             target_link_libraries(proxy ${LIBSSH_SHARED_LIBRARY} ${ARGP_LIBRARY})
         endif (WITH_GSSAPI AND GSSAPI_FOUND)
 
         add_executable(samplesshd-kbdint samplesshd-kbdint.c)
+        target_compile_options(samplesshd-kbdint PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
         target_link_libraries(samplesshd-kbdint ${LIBSSH_SHARED_LIBRARY} ${ARGP_LIBRARY})
 
     endif()
 endif (UNIX AND NOT WIN32)
 
 add_executable(exec exec.c ${examples_SRCS})
+target_compile_options(exec PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 target_link_libraries(exec ${LIBSSH_SHARED_LIBRARY})
 
 add_executable(senddata senddata.c ${examples_SRCS})
+target_compile_options(senddata PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 target_link_libraries(senddata ${LIBSSH_SHARED_LIBRARY})
 
 add_executable(libsshpp libsshpp.cpp)

examples/authentication.c

@@ -24,7 +24,8 @@ clients must be made or how a client should react.
 #include <libssh/libssh.h>
 #include "examples_common.h"
 
-int authenticate_kbdint(ssh_session session, const char *password) {
+int authenticate_kbdint(ssh_session session, const char *password)
+{
     int err;
 
     err = ssh_userauth_kbdint(session, NULL, NULL);
@@ -99,78 +100,80 @@ int authenticate_kbdint(ssh_session session, const char *password) {
     return err;
 }
 
-static void error(ssh_session session){
+static void error(ssh_session session)
-	fprintf(stderr,"Authentication failed: %s\n",ssh_get_error(session));
+{
+    fprintf(stderr,"Authentication failed: %s\n",ssh_get_error(session));
 }
 
-int authenticate_console(ssh_session session){
+int authenticate_console(ssh_session session)
-  int rc;
+{
-  int method;
+    int rc;
-  char password[128] = {0};
+    int method;
-  char *banner;
+    char password[128] = {0};
+    char *banner;
+
+    // Try to authenticate
+    rc = ssh_userauth_none(session, NULL);
+    if (rc == SSH_AUTH_ERROR) {
+        error(session);
+        return rc;
+    }
+
+    method = ssh_userauth_list(session, NULL);
+    while (rc != SSH_AUTH_SUCCESS) {
+        if (method & SSH_AUTH_METHOD_GSSAPI_MIC){
+            rc = ssh_userauth_gssapi(session);
+            if(rc == SSH_AUTH_ERROR) {
+                error(session);
+                return rc;
+            } else if (rc == SSH_AUTH_SUCCESS) {
+                break;
+            }
+        }
+        // Try to authenticate with public key first
+        if (method & SSH_AUTH_METHOD_PUBLICKEY) {
+            rc = ssh_userauth_publickey_auto(session, NULL, NULL);
+            if (rc == SSH_AUTH_ERROR) {
+                error(session);
+                return rc;
+            } else if (rc == SSH_AUTH_SUCCESS) {
+                break;
+            }
+        }
+
+        // Try to authenticate with keyboard interactive";
+        if (method & SSH_AUTH_METHOD_INTERACTIVE) {
+            rc = authenticate_kbdint(session, NULL);
+            if (rc == SSH_AUTH_ERROR) {
+                error(session);
+                return rc;
+            } else if (rc == SSH_AUTH_SUCCESS) {
+                break;
+            }
+        }
+
+        if (ssh_getpass("Password: ", password, sizeof(password), 0, 0) < 0) {
+            return SSH_AUTH_ERROR;
+        }
+
+        // Try to authenticate with password
+        if (method & SSH_AUTH_METHOD_PASSWORD) {
+            rc = ssh_userauth_password(session, NULL, password);
+            if (rc == SSH_AUTH_ERROR) {
+                error(session);
+                return rc;
+            } else if (rc == SSH_AUTH_SUCCESS) {
+                break;
+            }
+        }
+        memset(password, 0, sizeof(password));
+    }
+
+    banner = ssh_get_issue_banner(session);
+    if (banner) {
+        printf("%s\n",banner);
+        ssh_string_free_char(banner);
+    }
 
-  // Try to authenticate
-  rc = ssh_userauth_none(session, NULL);
-  if (rc == SSH_AUTH_ERROR) {
-    error(session);
     return rc;
-  }
-
-  method = ssh_userauth_list(session, NULL);
-  while (rc != SSH_AUTH_SUCCESS) {
-	if (method & SSH_AUTH_METHOD_GSSAPI_MIC){
-		rc = ssh_userauth_gssapi(session);
-		if(rc == SSH_AUTH_ERROR) {
-			error(session);
-			return rc;
-		} else if (rc == SSH_AUTH_SUCCESS) {
-			break;
-		}
-	}
-    // Try to authenticate with public key first
-    if (method & SSH_AUTH_METHOD_PUBLICKEY) {
-      rc = ssh_userauth_publickey_auto(session, NULL, NULL);
-      if (rc == SSH_AUTH_ERROR) {
-          error(session);
-          return rc;
-      } else if (rc == SSH_AUTH_SUCCESS) {
-        break;
-      }
-    }
-
-    // Try to authenticate with keyboard interactive";
-    if (method & SSH_AUTH_METHOD_INTERACTIVE) {
-      rc = authenticate_kbdint(session, NULL);
-      if (rc == SSH_AUTH_ERROR) {
-      	error(session);
-        return rc;
-      } else if (rc == SSH_AUTH_SUCCESS) {
-        break;
-      }
-    }
-
-    if (ssh_getpass("Password: ", password, sizeof(password), 0, 0) < 0) {
-        return SSH_AUTH_ERROR;
-    }
-
-    // Try to authenticate with password
-    if (method & SSH_AUTH_METHOD_PASSWORD) {
-      rc = ssh_userauth_password(session, NULL, password);
-      if (rc == SSH_AUTH_ERROR) {
-      	error(session);
-        return rc;
-      } else if (rc == SSH_AUTH_SUCCESS) {
-        break;
-      }
-    }
-    memset(password, 0, sizeof(password));
-  }
-
-  banner = ssh_get_issue_banner(session);
-  if (banner) {
-    printf("%s\n",banner);
-    ssh_string_free_char(banner);
-  }
-
-  return rc;
 }

examples/examples_common.h

@@ -14,6 +14,10 @@ clients must be made or how a client should react.
 #define EXAMPLES_COMMON_H_
 
 #include <libssh/libssh.h>
+
+/** Zero a structure */
+#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
+
 int authenticate_console(ssh_session session);
 int authenticate_kbdint(ssh_session session, const char *password);
 int verify_knownhost(ssh_session session);

examples/knownhosts.c

@@ -32,83 +32,86 @@ clients must be made or how a client should react.
 #define strncasecmp _strnicmp
 #endif
 
-int verify_knownhost(ssh_session session){
+int verify_knownhost(ssh_session session)
-  char *hexa;
+{
-  enum ssh_known_hosts_e state;
+    enum ssh_known_hosts_e state;
-  char buf[10];
+    char buf[10];
-  unsigned char *hash = NULL;
+    unsigned char *hash = NULL;
-  size_t hlen;
+    size_t hlen;
-  ssh_key srv_pubkey;
+    ssh_key srv_pubkey;
-  int rc;
+    int rc;
 
-  rc = ssh_get_server_publickey(session, &srv_pubkey);
+    rc = ssh_get_server_publickey(session, &srv_pubkey);
-  if (rc < 0) {
+    if (rc < 0) {
-      return -1;
+        return -1;
-  }
+    }
 
-  rc = ssh_get_publickey_hash(srv_pubkey,
+    rc = ssh_get_publickey_hash(srv_pubkey,
-                              SSH_PUBLICKEY_HASH_SHA1,
+                                SSH_PUBLICKEY_HASH_SHA256,
-                              &hash,
+                                &hash,
-                              &hlen);
+                                &hlen);
-  ssh_key_free(srv_pubkey);
+    ssh_key_free(srv_pubkey);
-  if (rc < 0) {
+    if (rc < 0) {
-      return -1;
+        return -1;
-  }
+    }
 
-  state = ssh_session_is_known_server(session);
+    state = ssh_session_is_known_server(session);
 
-  switch(state){
+    switch(state) {
-    case SSH_KNOWN_HOSTS_OK:
-      break; /* ok */
     case SSH_KNOWN_HOSTS_CHANGED:
-      fprintf(stderr,"Host key for server changed : server's one is now :\n");
+        fprintf(stderr,"Host key for server changed : server's one is now :\n");
-      ssh_print_hexa("Public key hash",hash, hlen);
+        ssh_print_hash(SSH_PUBLICKEY_HASH_SHA256, hash, hlen);
-      ssh_clean_pubkey_hash(&hash);
+        ssh_clean_pubkey_hash(&hash);
-      fprintf(stderr,"For security reason, connection will be stopped\n");
+        fprintf(stderr,"For security reason, connection will be stopped\n");
-      return -1;
+        return -1;
     case SSH_KNOWN_HOSTS_OTHER:
-      fprintf(stderr,"The host key for this server was not found but an other type of key exists.\n");
+        fprintf(stderr,"The host key for this server was not found but an other type of key exists.\n");
-      fprintf(stderr,"An attacker might change the default server key to confuse your client"
+        fprintf(stderr,"An attacker might change the default server key to confuse your client"
-          "into thinking the key does not exist\n"
+                "into thinking the key does not exist\n"
-          "We advise you to rerun the client with -d or -r for more safety.\n");
+                "We advise you to rerun the client with -d or -r for more safety.\n");
-      return -1;
+        return -1;
     case SSH_KNOWN_HOSTS_NOT_FOUND:
-      fprintf(stderr,"Could not find known host file. If you accept the host key here,\n");
+        fprintf(stderr,"Could not find known host file. If you accept the host key here,\n");
-      fprintf(stderr,"the file will be automatically created.\n");
+        fprintf(stderr,"the file will be automatically created.\n");
-      /* fallback to SSH_SERVER_NOT_KNOWN behavior */
+        /* fallback to SSH_SERVER_NOT_KNOWN behavior */
-      FALL_THROUGH;
+        FALL_THROUGH;
     case SSH_SERVER_NOT_KNOWN:
-      hexa = ssh_get_hexa(hash, hlen);
+        fprintf(stderr,
-      fprintf(stderr,"The server is unknown. Do you trust the host key ?\n");
+                "The server is unknown. Do you trust the host key (yes/no)?\n");
-      fprintf(stderr, "Public key hash: %s\n", hexa);
+        ssh_print_hash(SSH_PUBLICKEY_HASH_SHA256, hash, hlen);
-      ssh_string_free_char(hexa);
-      if (fgets(buf, sizeof(buf), stdin) == NULL) {
-	    ssh_clean_pubkey_hash(&hash);
-        return -1;
-      }
-      if(strncasecmp(buf,"yes",3)!=0){
-	    ssh_clean_pubkey_hash(&hash);
-        return -1;
-      }
-      fprintf(stderr,"This new key will be written on disk for further usage. do you agree ?\n");
-      if (fgets(buf, sizeof(buf), stdin) == NULL) {
-	    ssh_clean_pubkey_hash(&hash);
-        return -1;
-      }
-      if(strncasecmp(buf,"yes",3)==0){
-        if (ssh_write_knownhost(session) < 0) {
-          ssh_clean_pubkey_hash(&hash);
-          fprintf(stderr, "error %s\n", strerror(errno));
-          return -1;
-        }
-      }
 
-      break;
+        if (fgets(buf, sizeof(buf), stdin) == NULL) {
+            ssh_clean_pubkey_hash(&hash);
+            return -1;
+        }
+        if(strncasecmp(buf,"yes",3)!=0){
+            ssh_clean_pubkey_hash(&hash);
+            return -1;
+        }
+        fprintf(stderr,"This new key will be written on disk for further usage. do you agree ?\n");
+        if (fgets(buf, sizeof(buf), stdin) == NULL) {
+            ssh_clean_pubkey_hash(&hash);
+            return -1;
+        }
+        if(strncasecmp(buf,"yes",3)==0){
+            rc = ssh_session_update_known_hosts(session);
+            if (rc != SSH_OK) {
+                ssh_clean_pubkey_hash(&hash);
+                fprintf(stderr, "error %s\n", strerror(errno));
+                return -1;
+            }
+        }
+
+        break;
     case SSH_KNOWN_HOSTS_ERROR:
-      ssh_clean_pubkey_hash(&hash);
+        ssh_clean_pubkey_hash(&hash);
-      fprintf(stderr,"%s",ssh_get_error(session));
+        fprintf(stderr,"%s",ssh_get_error(session));
-      return -1;
+        return -1;
-  }
+    case SSH_KNOWN_HOSTS_OK:
-  ssh_clean_pubkey_hash(&hash);
+        break; /* ok */
-  return 0;
+    }
+
+    ssh_clean_pubkey_hash(&hash);
+
+    return 0;
 }

examples/libssh_scp.c

@@ -25,148 +25,230 @@ program.
 static char **sources;
 static int nsources;
 static char *destination;
-static int verbosity=0;
+static int verbosity = 0;
 
 struct location {
-  int is_ssh;
+    int is_ssh;
-  char *user;
+    char *user;
-  char *host;
+    char *host;
-  char *path;
+    char *path;
-  ssh_session session;
+    ssh_session session;
-  ssh_scp scp;
+    ssh_scp scp;
-  FILE *file;
+    FILE *file;
 };
 
 enum {
-  READ,
+    READ,
-  WRITE
+    WRITE
 };
 
-static void usage(const char *argv0){
+static void usage(const char *argv0) {
-  fprintf(stderr,"Usage : %s [options] [[user@]host1:]file1 ... \n"
+    fprintf(stderr, "Usage : %s [options] [[user@]host1:]file1 ... \n"
-      "                               [[user@]host2:]destination\n"
+            "                               [[user@]host2:]destination\n"
-      "sample scp client - libssh-%s\n",
+            "sample scp client - libssh-%s\n",
-//      "Options :\n",
+            //      "Options :\n",
-//      "  -r : use RSA to verify host public key\n",
+            //      "  -r : use RSA to verify host public key\n",
-      argv0,
+            argv0,
-      ssh_version(0));
+            ssh_version(0));
-  exit(0);
+    exit(0);
 }
 
-static int opts(int argc, char **argv){
+static int opts(int argc, char **argv) {
-  int i;
+    int i;
-  while((i=getopt(argc,argv,"v"))!=-1){
+
-    switch(i){
+    while((i = getopt(argc, argv, "v")) != -1) {
-      case 'v':
+        switch(i) {
-        verbosity++;
+        case 'v':
-        break;
+            verbosity++;
-      default:
+            break;
-        fprintf(stderr,"unknown option %c\n",optopt);
+        default:
+            fprintf(stderr, "unknown option %c\n", optopt);
+            usage(argv[0]);
+            return -1;
+        }
+    }
+
+    nsources = argc - optind - 1;
+    if (nsources < 1) {
         usage(argv[0]);
         return -1;
     }
-  }
+
-  nsources=argc-optind-1;
+    sources = malloc((nsources + 1) * sizeof(char *));
-  if(nsources < 1){
+    if (sources == NULL) {
-    usage(argv[0]);
+        return -1;
-    return -1;
+    }
-  }
+
-  sources=malloc((nsources + 1) * sizeof(char *));
+    for(i = 0; i < nsources; ++i) {
-  if(sources == NULL)
+        sources[i] = argv[optind];
-    return -1;
+        optind++;
-  for(i=0;i<nsources;++i){
+    }
-    sources[i] = argv[optind];
+
-    optind++;
+    sources[i] = NULL;
-  }
+    destination = argv[optind];
-  sources[i]=NULL;
+    return 0;
-  destination=argv[optind];
-  return 0;
 }
 
-static struct location *parse_location(char *loc){
+static void location_free(struct location *loc)
-  struct location *location;
+{
-  char *ptr;
+    if (loc) {
+        if (loc->path) {
+            free(loc->path);
+        }
+        loc->path = NULL;
+        if (loc->is_ssh) {
+            if (loc->host) {
+                free(loc->host);
+            }
+            loc->host = NULL;
+            if (loc->user) {
+                free(loc->user);
+            }
+            loc->user = NULL;
+            if (loc->host) {
+                free(loc->host);
+            }
+            loc->host = NULL;
+        }
+        free(loc);
+    }
+}
 
-  location = malloc(sizeof(struct location));
+static struct location *parse_location(char *loc) {
-  if (location == NULL) {
+    struct location *location;
-      return NULL;
+    char *ptr;
-  }
-  memset(location, 0, sizeof(struct location));
 
-  location->host=location->user=NULL;
+    location = malloc(sizeof(struct location));
-  ptr=strchr(loc,':');
+    if (location == NULL) {
-  if(ptr != NULL){
+        return NULL;
-    location->is_ssh=1;
+    }
-    location->path=strdup(ptr+1);
+    memset(location, 0, sizeof(struct location));
-    *ptr='\0';
+
-    ptr=strchr(loc,'@');
+    location->host = location->user = NULL;
-    if(ptr != NULL){
+    ptr = strchr(loc, ':');
-      location->host=strdup(ptr+1);
+
-      *ptr='\0';
+    if (ptr != NULL) {
-      location->user=strdup(loc);
+        location->is_ssh = 1;
+        location->path = strdup(ptr+1);
+        *ptr = '\0';
+        ptr = strchr(loc, '@');
+
+        if (ptr != NULL) {
+            location->host = strdup(ptr+1);
+            *ptr = '\0';
+            location->user = strdup(loc);
+        } else {
+            location->host = strdup(loc);
+        }
     } else {
-      location->host=strdup(loc);
+        location->is_ssh = 0;
+        location->path = strdup(loc);
     }
-  } else {
+    return location;
-    location->is_ssh=0;
-    location->path=strdup(loc);
-  }
-  return location;
 }
 
-static int open_location(struct location *loc, int flag){
+static void close_location(struct location *loc) {
-  if(loc->is_ssh && flag==WRITE){
+    int rc;
-    loc->session=connect_ssh(loc->host,loc->user,verbosity);
+
-    if(!loc->session){
+    if (loc) {
-      fprintf(stderr,"Couldn't connect to %s\n",loc->host);
+        if (loc->is_ssh) {
-      return -1;
+            if (loc->scp) {
+                rc = ssh_scp_close(loc->scp);
+                if (rc == SSH_ERROR) {
+                    fprintf(stderr,
+                            "Error closing scp: %s\n",
+                            ssh_get_error(loc->session));
+                }
+                ssh_scp_free(loc->scp);
+                loc->scp = NULL;
+            }
+            if (loc->session) {
+                ssh_disconnect(loc->session);
+                ssh_free(loc->session);
+                loc->session = NULL;
+            }
+        } else {
+            if (loc->file) {
+                fclose(loc->file);
+                loc->file = NULL;
+            }
+        }
     }
-    loc->scp=ssh_scp_new(loc->session,SSH_SCP_WRITE,loc->path);
+}
-    if(!loc->scp){
+
-      fprintf(stderr,"error : %s\n",ssh_get_error(loc->session));
+static int open_location(struct location *loc, int flag) {
-      return -1;
+    if (loc->is_ssh && flag == WRITE) {
+        loc->session = connect_ssh(loc->host, loc->user, verbosity);
+        if (!loc->session) {
+            fprintf(stderr, "Couldn't connect to %s\n", loc->host);
+            return -1;
+        }
+
+        loc->scp = ssh_scp_new(loc->session, SSH_SCP_WRITE, loc->path);
+        if (!loc->scp) {
+            fprintf(stderr, "error : %s\n", ssh_get_error(loc->session));
+            ssh_disconnect(loc->session);
+            ssh_free(loc->session);
+            loc->session = NULL;
+            return -1;
+        }
+
+        if (ssh_scp_init(loc->scp) == SSH_ERROR) {
+            fprintf(stderr, "error : %s\n", ssh_get_error(loc->session));
+            ssh_scp_free(loc->scp);
+            loc->scp = NULL;
+            ssh_disconnect(loc->session);
+            ssh_free(loc->session);
+            loc->session = NULL;
+            return -1;
+        }
+        return 0;
+    } else if (loc->is_ssh && flag == READ) {
+        loc->session = connect_ssh(loc->host, loc->user, verbosity);
+        if (!loc->session) {
+            fprintf(stderr, "Couldn't connect to %s\n", loc->host);
+            return -1;
+        }
+
+        loc->scp = ssh_scp_new(loc->session, SSH_SCP_READ, loc->path);
+        if (!loc->scp) {
+            fprintf(stderr, "error : %s\n", ssh_get_error(loc->session));
+            ssh_disconnect(loc->session);
+            ssh_free(loc->session);
+            loc->session = NULL;
+            return -1;
+        }
+
+        if (ssh_scp_init(loc->scp) == SSH_ERROR) {
+            fprintf(stderr, "error : %s\n", ssh_get_error(loc->session));
+            ssh_scp_free(loc->scp);
+            loc->scp = NULL;
+            ssh_disconnect(loc->session);
+            ssh_free(loc->session);
+            loc->session = NULL;
+            return -1;
+        }
+        return 0;
+    } else {
+        loc->file = fopen(loc->path, flag == READ ? "r":"w");
+        if (!loc->file) {
+            if (errno == EISDIR) {
+                if (chdir(loc->path)) {
+                    fprintf(stderr,
+                            "Error changing directory to %s: %s\n",
+                            loc->path, strerror(errno));
+                    return -1;
+                }
+                return 0;
+            }
+            fprintf(stderr,
+                    "Error opening %s: %s\n",
+                    loc->path, strerror(errno));
+            return -1;
+        }
+        return 0;
     }
-    if(ssh_scp_init(loc->scp)==SSH_ERROR){
+    return -1;
-      fprintf(stderr,"error : %s\n",ssh_get_error(loc->session));
-      ssh_scp_free(loc->scp);
-      loc->scp = NULL;
-      return -1;
-    }
-    return 0;
-  } else if(loc->is_ssh && flag==READ){
-    loc->session=connect_ssh(loc->host, loc->user,verbosity);
-    if(!loc->session){
-      fprintf(stderr,"Couldn't connect to %s\n",loc->host);
-      return -1;
-    }
-    loc->scp=ssh_scp_new(loc->session,SSH_SCP_READ,loc->path);
-    if(!loc->scp){
-      fprintf(stderr,"error : %s\n",ssh_get_error(loc->session));
-      return -1;
-    }
-    if(ssh_scp_init(loc->scp)==SSH_ERROR){
-      fprintf(stderr,"error : %s\n",ssh_get_error(loc->session));
-      ssh_scp_free(loc->scp);
-      loc->scp = NULL;
-      return -1;
-    }
-    return 0;
-  } else {
-    loc->file=fopen(loc->path,flag==READ ? "r":"w");
-    if(!loc->file){
-    	if(errno==EISDIR){
-    		if(chdir(loc->path)){
-    			fprintf(stderr,"Error changing directory to %s: %s\n",loc->path,strerror(errno));
-    			return -1;
-    		}
-    		return 0;
-    	}
-    	fprintf(stderr,"Error opening %s: %s\n",loc->path,strerror(errno));
-    	return -1;
-	}
-    return 0;
-  }
-  return -1;
 }
 
 /** @brief copies files from source location to destination
@@ -174,155 +256,197 @@ static int open_location(struct location *loc, int flag){
  * @param dest destination location
  * @param recursive Copy also directories
  */
-static int do_copy(struct location *src, struct location *dest, int recursive){
+static int do_copy(struct location *src, struct location *dest, int recursive) {
-  int size;
+    int size;
-  socket_t fd;
+    socket_t fd;
-  struct stat s;
+    struct stat s;
-  int w,r;
+    int w, r;
-  char buffer[16384];
+    char buffer[16384];
-  int total=0;
+    int total = 0;
-  int mode;
+    int mode;
-  char *filename = NULL;
+    char *filename = NULL;
-  /* recursive mode doesn't work yet */
+    /* recursive mode doesn't work yet */
-  (void)recursive;
+    (void)recursive;
-  /* Get the file name and size*/
+    /* Get the file name and size*/
-  if(!src->is_ssh){
+    if (!src->is_ssh) {
-    fd = fileno(src->file);
+        fd = fileno(src->file);
-    if (fd < 0) {
+        if (fd < 0) {
-        fprintf(stderr, "Invalid file pointer, error: %s\n", strerror(errno));
+            fprintf(stderr,
-        return -1;
+                    "Invalid file pointer, error: %s\n",
-    }
+                    strerror(errno));
-    r = fstat(fd, &s);
+            return -1;
-    if (r < 0) {
+        }
-        return -1;
+        r = fstat(fd, &s);
-    }
+        if (r < 0) {
-    size=s.st_size;
+            return -1;
-    mode = s.st_mode & ~S_IFMT;
+        }
-    filename=ssh_basename(src->path);
+        size = s.st_size;
-  } else {
+        mode = s.st_mode & ~S_IFMT;
-    size=0;
+        filename = ssh_basename(src->path);
-    do {
+    } else {
-    	r=ssh_scp_pull_request(src->scp);
+        size = 0;
-    	if(r==SSH_SCP_REQUEST_NEWDIR){
+        do {
-    		ssh_scp_deny_request(src->scp,"Not in recursive mode");
+            r = ssh_scp_pull_request(src->scp);
-    		continue;
+            if (r == SSH_SCP_REQUEST_NEWDIR) {
-    	}
+                ssh_scp_deny_request(src->scp, "Not in recursive mode");
-    	if(r==SSH_SCP_REQUEST_NEWFILE){
+                continue;
-    		size=ssh_scp_request_get_size(src->scp);
+            }
-    		filename=strdup(ssh_scp_request_get_filename(src->scp));
+            if (r == SSH_SCP_REQUEST_NEWFILE) {
-    		mode=ssh_scp_request_get_permissions(src->scp);
+                size = ssh_scp_request_get_size(src->scp);
-    		//ssh_scp_accept_request(src->scp);
+                filename = strdup(ssh_scp_request_get_filename(src->scp));
-    		break;
+                mode = ssh_scp_request_get_permissions(src->scp);
-    	}
+                //ssh_scp_accept_request(src->scp);
-    	if(r==SSH_ERROR){
+                break;
-    		fprintf(stderr,"Error: %s\n",ssh_get_error(src->session));
+            }
+            if (r == SSH_ERROR) {
+                fprintf(stderr,
+                        "Error: %s\n",
+                        ssh_get_error(src->session));
                 ssh_string_free_char(filename);
-    		return -1;
+                return -1;
-    	}
+            }
-    } while(r != SSH_SCP_REQUEST_NEWFILE);
+        } while(r != SSH_SCP_REQUEST_NEWFILE);
-  }
+    }
 
-  if(dest->is_ssh){
+    if (dest->is_ssh) {
-	  r=ssh_scp_push_file(dest->scp,src->path, size, mode);
+        r = ssh_scp_push_file(dest->scp, src->path, size, mode);
-	  //  snprintf(buffer,sizeof(buffer),"C0644 %d %s\n",size,src->path);
+        //  snprintf(buffer, sizeof(buffer), "C0644 %d %s\n", size, src->path);
-	  if(r==SSH_ERROR){
+        if (r == SSH_ERROR) {
-		  fprintf(stderr,"error: %s\n",ssh_get_error(dest->session));
+            fprintf(stderr,
-                  ssh_string_free_char(filename);
+                    "error: %s\n",
-		  ssh_scp_free(dest->scp);
+                    ssh_get_error(dest->session));
-		  dest->scp = NULL;
+            ssh_string_free_char(filename);
-		  return -1;
+            ssh_scp_free(dest->scp);
-	  }
+            dest->scp = NULL;
-  } else {
+            return -1;
-	  if(!dest->file){
+        }
-		  dest->file=fopen(filename,"w");
+    } else {
-		  if(!dest->file){
+        if (!dest->file) {
-			  fprintf(stderr,"Cannot open %s for writing: %s\n",filename,strerror(errno));
+            dest->file = fopen(filename, "w");
-			  if(src->is_ssh)
+            if (!dest->file) {
-				  ssh_scp_deny_request(src->scp,"Cannot open local file");
+                fprintf(stderr,
-                          ssh_string_free_char(filename);
+                        "Cannot open %s for writing: %s\n",
-			  return -1;
+                        filename, strerror(errno));
-		  }
+                if (src->is_ssh) {
-	  }
+                    ssh_scp_deny_request(src->scp, "Cannot open local file");
-	  if(src->is_ssh){
+                }
-		  ssh_scp_accept_request(src->scp);
+                ssh_string_free_char(filename);
-	  }
+                return -1;
-  }
+            }
-  do {
+        }
-	  if(src->is_ssh){
+        if (src->is_ssh) {
-		  r=ssh_scp_read(src->scp,buffer,sizeof(buffer));
+            ssh_scp_accept_request(src->scp);
-		  if(r==SSH_ERROR){
+        }
-			  fprintf(stderr,"Error reading scp: %s\n",ssh_get_error(src->session));
+    }
-                          ssh_string_free_char(filename);
-			  return -1;
-		  }
-		  if(r==0)
-			  break;
-	  } else {
-		  r=fread(buffer,1,sizeof(buffer),src->file);
-		  if(r==0)
-			  break;
-		  if(r<0){
-			  fprintf(stderr,"Error reading file: %s\n",strerror(errno));
-                          ssh_string_free_char(filename);
-			  return -1;
-		  }
-	  }
-	  if(dest->is_ssh){
-		  w=ssh_scp_write(dest->scp,buffer,r);
-		  if(w == SSH_ERROR){
-			  fprintf(stderr,"Error writing in scp: %s\n",ssh_get_error(dest->session));
-			  ssh_scp_free(dest->scp);
-			  dest->scp=NULL;
-                          ssh_string_free_char(filename);
-			  return -1;
-		  }
-	  } else {
-		  w=fwrite(buffer,r,1,dest->file);
-		  if(w<=0){
-			  fprintf(stderr,"Error writing in local file: %s\n",strerror(errno));
-                          ssh_string_free_char(filename);
-			  return -1;
-		  }
-	  }
-	  total+=r;
 
-  } while(total < size);
+    do {
-  ssh_string_free_char(filename);
+        if (src->is_ssh) {
- printf("wrote %d bytes\n",total);
+            r = ssh_scp_read(src->scp, buffer, sizeof(buffer));
- return 0;
+            if (r == SSH_ERROR) {
+                fprintf(stderr,
+                        "Error reading scp: %s\n",
+                        ssh_get_error(src->session));
+                ssh_string_free_char(filename);
+                return -1;
+            }
+
+            if (r == 0) {
+                break;
+            }
+        } else {
+            r = fread(buffer, 1, sizeof(buffer), src->file);
+            if (r == 0) {
+                break;
+            }
+
+            if (r < 0) {
+                fprintf(stderr,
+                        "Error reading file: %s\n",
+                        strerror(errno));
+                ssh_string_free_char(filename);
+                return -1;
+            }
+        }
+
+        if (dest->is_ssh) {
+            w = ssh_scp_write(dest->scp, buffer, r);
+            if (w == SSH_ERROR) {
+                fprintf(stderr,
+                        "Error writing in scp: %s\n",
+                        ssh_get_error(dest->session));
+                ssh_scp_free(dest->scp);
+                dest->scp = NULL;
+                ssh_string_free_char(filename);
+                return -1;
+            }
+        } else {
+            w = fwrite(buffer, r, 1, dest->file);
+            if (w <= 0) {
+                fprintf(stderr,
+                        "Error writing in local file: %s\n",
+                        strerror(errno));
+                ssh_string_free_char(filename);
+                return -1;
+            }
+        }
+        total += r;
+
+    } while(total < size);
+
+    ssh_string_free_char(filename);
+    printf("wrote %d bytes\n", total);
+    return 0;
 }
 
-int main(int argc, char **argv){
+int main(int argc, char **argv) {
-  struct location *dest, *src;
+    struct location *dest, *src;
-  int i;
+    int i;
-  int r;
+    int r;
-  if(opts(argc,argv)<0)
+    if (opts(argc, argv) < 0) {
-    return EXIT_FAILURE;
+        r = EXIT_FAILURE;
-  dest=parse_location(destination);
+        goto end;
-  if(open_location(dest,WRITE)<0)
-    return EXIT_FAILURE;
-  for(i=0;i<nsources;++i){
-    src=parse_location(sources[i]);
-    if(open_location(src,READ)<0){
-      return EXIT_FAILURE;
     }
-    if(do_copy(src,dest,0) < 0){
+
-    	break;
+    dest = parse_location(destination);
+    if (dest == NULL) {
+        r = EXIT_FAILURE;
+        goto end;
     }
-  }
+
-  if (dest->is_ssh && dest->scp != NULL) {
+    if (open_location(dest, WRITE) < 0) {
-	  r=ssh_scp_close(dest->scp);
+        location_free(dest);
-	  if(r == SSH_ERROR){
+        r = EXIT_FAILURE;
-		  fprintf(stderr,"Error closing scp: %s\n",ssh_get_error(dest->session));
+        goto end;
-		  ssh_scp_free(dest->scp);
+    }
-		  dest->scp=NULL;
+
-		  return -1;
+    for (i = 0; i < nsources; ++i) {
-	  }
+        src = parse_location(sources[i]);
-  } else {
+        if (src == NULL) {
-	  fclose(dest->file);
+            r = EXIT_FAILURE;
-	  dest->file=NULL;
+            goto close_dest;
-  }
+        }
-  ssh_disconnect(dest->session);
+
-  ssh_finalize();
+        if (open_location(src, READ) < 0) {
-  return 0;
+            location_free(src);
+            r = EXIT_FAILURE;
+            goto close_dest;
+        }
+
+        if (do_copy(src, dest, 0) < 0) {
+            close_location(src);
+            location_free(src);
+            break;
+        }
+
+        close_location(src);
+        location_free(src);
+    }
+
+    r = 0;
+
+close_dest:
+    close_location(dest);
+    location_free(dest);
+end:
+    return r;
 }

examples/samplesftp.c

@@ -33,236 +33,259 @@ static int verbosity;
 static char *destination;
 
 #define DATALEN 65536
-static void do_sftp(ssh_session session){
+
-    sftp_session sftp=sftp_new(session);
+static void do_sftp(ssh_session session) {
+    sftp_session sftp = sftp_new(session);
     sftp_dir dir;
     sftp_attributes file;
     sftp_statvfs_t sftpstatvfs;
     struct statvfs sysstatvfs;
     sftp_file fichier;
     sftp_file to;
-    int len=1;
+    int len = 1;
     unsigned int i;
-    char data[DATALEN]={0};
+    char data[DATALEN] = {0};
     char *lnk;
 
     unsigned int count;
 
-    if(!sftp){
+    if (!sftp) {
         fprintf(stderr, "sftp error initialising channel: %s\n",
-            ssh_get_error(session));
+                ssh_get_error(session));
-        return;
+        goto end;
     }
-    if(sftp_init(sftp)){
+
+    if (sftp_init(sftp)) {
         fprintf(stderr, "error initialising sftp: %s\n",
-            ssh_get_error(session));
+                ssh_get_error(session));
-        return;
+        goto end;
     }
 
     printf("Additional SFTP extensions provided by the server:\n");
     count = sftp_extensions_get_count(sftp);
     for (i = 0; i < count; i++) {
-      printf("\t%s, version: %s\n",
+        printf("\t%s, version: %s\n",
-          sftp_extensions_get_name(sftp, i),
+               sftp_extensions_get_name(sftp, i),
-          sftp_extensions_get_data(sftp, i));
+               sftp_extensions_get_data(sftp, i));
     }
 
     /* test symlink and readlink */
     if (sftp_symlink(sftp, "/tmp/this_is_the_link",
-          "/tmp/sftp_symlink_test") < 0) {
+                     "/tmp/sftp_symlink_test") < 0)
-      fprintf(stderr, "Could not create link (%s)\n", ssh_get_error(session));
+    {
-      return;
+        fprintf(stderr, "Could not create link (%s)\n",
+                ssh_get_error(session));
+        goto end;
     }
 
     lnk = sftp_readlink(sftp, "/tmp/sftp_symlink_test");
     if (lnk == NULL) {
-      fprintf(stderr, "Could not read link (%s)\n", ssh_get_error(session));
+        fprintf(stderr, "Could not read link (%s)\n", ssh_get_error(session));
-      return;
+        goto end;
     }
     printf("readlink /tmp/sftp_symlink_test: %s\n", lnk);
 
     sftp_unlink(sftp, "/tmp/sftp_symlink_test");
 
     if (sftp_extension_supported(sftp, "statvfs@openssh.com", "2")) {
-      sftpstatvfs = sftp_statvfs(sftp, "/tmp");
+        sftpstatvfs = sftp_statvfs(sftp, "/tmp");
-      if (sftpstatvfs == NULL) {
+        if (sftpstatvfs == NULL) {
-        fprintf(stderr, "statvfs failed (%s)\n", ssh_get_error(session));
+            fprintf(stderr, "statvfs failed (%s)\n", ssh_get_error(session));
-        return;
+            goto end;
-      }
+        }
 
-      printf("sftp statvfs:\n"
+        printf("sftp statvfs:\n"
-          "\tfile system block size: %llu\n"
+               "\tfile system block size: %llu\n"
-          "\tfundamental fs block size: %llu\n"
+               "\tfundamental fs block size: %llu\n"
-          "\tnumber of blocks (unit f_frsize): %llu\n"
+               "\tnumber of blocks (unit f_frsize): %llu\n"
-          "\tfree blocks in file system: %llu\n"
+               "\tfree blocks in file system: %llu\n"
-          "\tfree blocks for non-root: %llu\n"
+               "\tfree blocks for non-root: %llu\n"
-          "\ttotal file inodes: %llu\n"
+               "\ttotal file inodes: %llu\n"
-          "\tfree file inodes: %llu\n"
+               "\tfree file inodes: %llu\n"
-          "\tfree file inodes for to non-root: %llu\n"
+               "\tfree file inodes for to non-root: %llu\n"
-          "\tfile system id: %llu\n"
+               "\tfile system id: %llu\n"
-          "\tbit mask of f_flag values: %llu\n"
+               "\tbit mask of f_flag values: %llu\n"
-          "\tmaximum filename length: %llu\n",
+               "\tmaximum filename length: %llu\n",
-          (unsigned long long) sftpstatvfs->f_bsize,
+               (unsigned long long) sftpstatvfs->f_bsize,
-          (unsigned long long) sftpstatvfs->f_frsize,
+               (unsigned long long) sftpstatvfs->f_frsize,
-          (unsigned long long) sftpstatvfs->f_blocks,
+               (unsigned long long) sftpstatvfs->f_blocks,
-          (unsigned long long) sftpstatvfs->f_bfree,
+               (unsigned long long) sftpstatvfs->f_bfree,
-          (unsigned long long) sftpstatvfs->f_bavail,
+               (unsigned long long) sftpstatvfs->f_bavail,
-          (unsigned long long) sftpstatvfs->f_files,
+               (unsigned long long) sftpstatvfs->f_files,
-          (unsigned long long) sftpstatvfs->f_ffree,
+               (unsigned long long) sftpstatvfs->f_ffree,
-          (unsigned long long) sftpstatvfs->f_favail,
+               (unsigned long long) sftpstatvfs->f_favail,
-          (unsigned long long) sftpstatvfs->f_fsid,
+               (unsigned long long) sftpstatvfs->f_fsid,
-          (unsigned long long) sftpstatvfs->f_flag,
+               (unsigned long long) sftpstatvfs->f_flag,
-          (unsigned long long) sftpstatvfs->f_namemax);
+               (unsigned long long) sftpstatvfs->f_namemax);
 
-      sftp_statvfs_free(sftpstatvfs);
+        sftp_statvfs_free(sftpstatvfs);
 
-      if (statvfs("/tmp", &sysstatvfs) < 0) {
+        if (statvfs("/tmp", &sysstatvfs) < 0) {
-        fprintf(stderr, "statvfs failed (%s)\n", strerror(errno));
+            fprintf(stderr, "statvfs failed (%s)\n", strerror(errno));
-        return;
+            goto end;
-      }
+        }
 
-      printf("sys statvfs:\n"
+        printf("sys statvfs:\n"
-          "\tfile system block size: %llu\n"
+               "\tfile system block size: %llu\n"
-          "\tfundamental fs block size: %llu\n"
+               "\tfundamental fs block size: %llu\n"
-          "\tnumber of blocks (unit f_frsize): %llu\n"
+               "\tnumber of blocks (unit f_frsize): %llu\n"
-          "\tfree blocks in file system: %llu\n"
+               "\tfree blocks in file system: %llu\n"
-          "\tfree blocks for non-root: %llu\n"
+               "\tfree blocks for non-root: %llu\n"
-          "\ttotal file inodes: %llu\n"
+               "\ttotal file inodes: %llu\n"
-          "\tfree file inodes: %llu\n"
+               "\tfree file inodes: %llu\n"
-          "\tfree file inodes for to non-root: %llu\n"
+               "\tfree file inodes for to non-root: %llu\n"
-          "\tfile system id: %llu\n"
+               "\tfile system id: %llu\n"
-          "\tbit mask of f_flag values: %llu\n"
+               "\tbit mask of f_flag values: %llu\n"
-          "\tmaximum filename length: %llu\n",
+               "\tmaximum filename length: %llu\n",
-          (unsigned long long) sysstatvfs.f_bsize,
+               (unsigned long long) sysstatvfs.f_bsize,
-          (unsigned long long) sysstatvfs.f_frsize,
+               (unsigned long long) sysstatvfs.f_frsize,
-          (unsigned long long) sysstatvfs.f_blocks,
+               (unsigned long long) sysstatvfs.f_blocks,
-          (unsigned long long) sysstatvfs.f_bfree,
+               (unsigned long long) sysstatvfs.f_bfree,
-          (unsigned long long) sysstatvfs.f_bavail,
+               (unsigned long long) sysstatvfs.f_bavail,
-          (unsigned long long) sysstatvfs.f_files,
+               (unsigned long long) sysstatvfs.f_files,
-          (unsigned long long) sysstatvfs.f_ffree,
+               (unsigned long long) sysstatvfs.f_ffree,
-          (unsigned long long) sysstatvfs.f_favail,
+               (unsigned long long) sysstatvfs.f_favail,
-          (unsigned long long) sysstatvfs.f_fsid,
+               (unsigned long long) sysstatvfs.f_fsid,
-          (unsigned long long) sysstatvfs.f_flag,
+               (unsigned long long) sysstatvfs.f_flag,
-          (unsigned long long) sysstatvfs.f_namemax);
+               (unsigned long long) sysstatvfs.f_namemax);
     }
 
     /* the connection is made */
     /* opening a directory */
-    dir=sftp_opendir(sftp,"./");
+    dir = sftp_opendir(sftp, "./");
-    if(!dir) {
+    if (!dir) {
         fprintf(stderr, "Directory not opened(%s)\n", ssh_get_error(session));
-        return ;
+        goto end;
     }
+
     /* reading the whole directory, file by file */
-    while((file=sftp_readdir(sftp,dir))){
+    while ((file = sftp_readdir(sftp, dir))) {
         fprintf(stderr, "%30s(%.8o) : %s(%.5d) %s(%.5d) : %.10llu bytes\n",
-            file->name,
+                file->name,
-            file->permissions,
+                file->permissions,
-            file->owner,
+                file->owner,
-            file->uid,
+                file->uid,
-            file->group,
+                file->group,
-            file->gid,
+                file->gid,
-            (long long unsigned int) file->size);
+                (long long unsigned int) file->size);
         sftp_attributes_free(file);
     }
-    /* when file=NULL, an error has occured OR the directory listing is end of file */
+
-    if(!sftp_dir_eof(dir)){
+    /* when file = NULL, an error has occured OR the directory listing is end of
+     * file */
+    if (!sftp_dir_eof(dir)) {
         fprintf(stderr, "Error: %s\n", ssh_get_error(session));
-        return;
+        goto end;
     }
-    if(sftp_closedir(dir)){
+
+    if (sftp_closedir(dir)) {
         fprintf(stderr, "Error: %s\n", ssh_get_error(session));
-        return;
+        goto end;
     }
     /* this will open a file and copy it into your /home directory */
-    /* the small buffer size was intended to stress the library. of course, you can use a buffer till 20kbytes without problem */
+    /* the small buffer size was intended to stress the library. of course, you
+     * can use a buffer till 20kbytes without problem */
 
-    fichier=sftp_open(sftp,"/usr/bin/ssh",O_RDONLY, 0);
+    fichier = sftp_open(sftp, "/usr/bin/ssh", O_RDONLY, 0);
-    if(!fichier){
+    if (!fichier) {
         fprintf(stderr, "Error opening /usr/bin/ssh: %s\n",
-            ssh_get_error(session));
+                ssh_get_error(session));
-        return;
+        goto end;
     }
+
     /* open a file for writing... */
-    to=sftp_open(sftp,"ssh-copy",O_WRONLY | O_CREAT, 0700);
+    to = sftp_open(sftp, "ssh-copy", O_WRONLY | O_CREAT, 0700);
-    if(!to){
+    if (!to) {
         fprintf(stderr, "Error opening ssh-copy for writing: %s\n",
-            ssh_get_error(session));
+                ssh_get_error(session));
-        return;
+        sftp_close(fichier);
+        goto end;
     }
-    while((len=sftp_read(fichier,data,4096)) > 0){
+
-        if(sftp_write(to,data,len)!=len){
+    while ((len = sftp_read(fichier, data, 4096)) > 0) {
+        if (sftp_write(to, data, len) != len) {
             fprintf(stderr, "Error writing %d bytes: %s\n",
-                len, ssh_get_error(session));
+                    len, ssh_get_error(session));
-            return;
+            sftp_close(to);
+            sftp_close(fichier);
+            goto end;
         }
     }
+
     printf("finished\n");
-    if(len<0)
+    if (len < 0) {
         fprintf(stderr, "Error reading file: %s\n", ssh_get_error(session));
+    }
+
     sftp_close(fichier);
     sftp_close(to);
     printf("fichiers ferm\n");
-    to=sftp_open(sftp,"/tmp/grosfichier",O_WRONLY|O_CREAT, 0644);
+    to = sftp_open(sftp, "/tmp/grosfichier", O_WRONLY|O_CREAT, 0644);
-    for(i=0;i<1000;++i){
+
-        len=sftp_write(to,data,DATALEN);
+    for (i = 0; i < 1000; ++i) {
-        printf("wrote %d bytes\n",len);
+        len = sftp_write(to, data, DATALEN);
-        if(len != DATALEN){
+        printf("wrote %d bytes\n", len);
-            printf("chunk %d : %d (%s)\n",i,len,ssh_get_error(session));
+        if (len != DATALEN) {
+            printf("chunk %d : %d (%s)\n", i, len, ssh_get_error(session));
         }
     }
-    sftp_close(to);
 
+    sftp_close(to);
+end:
     /* close the sftp session */
     sftp_free(sftp);
     printf("sftp session terminated\n");
 }
 
-static void usage(const char *argv0){
+static void usage(const char *argv0) {
-  fprintf(stderr,"Usage : %s [-v] remotehost\n"
+    fprintf(stderr, "Usage : %s [-v] remotehost\n"
-      "sample sftp test client - libssh-%s\n"
+            "sample sftp test client - libssh-%s\n"
-      "Options :\n"
+            "Options :\n"
-      "  -v : increase log verbosity\n",
+            "  -v : increase log verbosity\n",
-      argv0,
+            argv0,
-      ssh_version(0));
+            ssh_version(0));
-  exit(0);
+    exit(0);
 }
 
-static int opts(int argc, char **argv){
+static int opts(int argc, char **argv) {
-  int i;
+    int i;
-  while((i=getopt(argc,argv,"v"))!=-1){
+
-    switch(i){
+    while ((i = getopt(argc, argv, "v")) != -1) {
-      case 'v':
+        switch(i) {
-        verbosity++;
+        case 'v':
-        break;
+            verbosity++;
-      default:
+            break;
-        fprintf(stderr,"unknown option %c\n",optopt);
+        default:
+            fprintf(stderr, "unknown option %c\n", optopt);
+            usage(argv[0]);
+            return -1;
+        }
+    }
+
+    destination = argv[optind];
+    if (destination == NULL) {
         usage(argv[0]);
         return -1;
     }
-  }
+    return 0;
-
-  destination=argv[optind];
-  if(destination == NULL){
-    usage(argv[0]);
-    return -1;
-  }
-  return 0;
 }
 
-int main(int argc, char **argv){
+int main(int argc, char **argv) {
-  ssh_session session;
+    ssh_session session;
-	if(opts(argc,argv)<0)
+
-    return EXIT_FAILURE;
+    if (opts(argc, argv) < 0) {
-  session=connect_ssh(destination,NULL,verbosity);
+        return EXIT_FAILURE;
-  if(session == NULL)
+    }
-  	return EXIT_FAILURE;
+
-  do_sftp(session);
+    session = connect_ssh(destination, NULL, verbosity);
-  ssh_disconnect(session);
+    if (session == NULL) {
-  ssh_free(session);
+        return EXIT_FAILURE;
-  return 0;
+    }
+
+    do_sftp(session);
+    ssh_disconnect(session);
+    ssh_free(session);
+    return 0;
 }
 
-
-
 #endif

examples/samplesshd-kbdint.c

@@ -23,6 +23,7 @@ clients must be made or how a client should react.
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
+#include <stdbool.h>
 
 #define SSHD_USER "libssh"
 #define SSHD_PASSWORD "libssh"
@@ -36,6 +37,7 @@ clients must be made or how a client should react.
 #endif
 
 static int port = 22;
+static bool authenticated = false;
 
 #ifdef WITH_PCAP
 static const char *pcap_file = "debug.server.pcap";
@@ -61,11 +63,20 @@ static void cleanup_pcap(void) {
 #endif
 
 
-static int auth_password(const char *user, const char *password){
+static int auth_password(const char *user, const char *password)
-    if(strcmp(user, SSHD_USER))
+{
+    int cmp;
+
+    cmp = strcmp(user, SSHD_USER);
+    if (cmp != 0) {
         return 0;
-    if(strcmp(password, SSHD_PASSWORD))
+    }
+    cmp = strcmp(password, SSHD_PASSWORD);
+    if (cmp != 0) {
         return 0;
+    }
+
+    authenticated = true;
     return 1; // authenticated
 }
 #ifdef HAVE_ARGP_H
@@ -200,6 +211,7 @@ static int kbdint_check_response(ssh_session session) {
         return 0;
     }
 
+    authenticated = true;
     return 1;
 }
 
@@ -328,7 +340,7 @@ int main(int argc, char **argv){
 
     /* proceed to authentication */
     auth = authenticate(session);
-    if(!auth){
+    if (!auth || !authenticated) {
         printf("Authentication error: %s\n", ssh_get_error(session));
         ssh_disconnect(session);
         return 1;

examples/ssh_client.c

@@ -48,12 +48,17 @@ static char *user;
 static char *cmds[MAXCMD];
 static struct termios terminal;
 
-static char *pcap_file=NULL;
+static char *pcap_file = NULL;
 
 static char *proxycommand;
 
-static int auth_callback(const char *prompt, char *buf, size_t len,
+static int auth_callback(const char *prompt,
-    int echo, int verify, void *userdata) {
+                         char *buf,
+                         size_t len,
+                         int echo,
+                         int verify,
+                         void *userdata)
+{
     (void) verify;
     (void) userdata;
 
@@ -61,11 +66,12 @@ static int auth_callback(const char *prompt, char *buf, size_t len,
 }
 
 struct ssh_callbacks_struct cb = {
-		.auth_function=auth_callback,
+    .auth_function = auth_callback,
-		.userdata=NULL
+    .userdata = NULL,
 };
 
-static void add_cmd(char *cmd){
+static void add_cmd(char *cmd)
+{
     int n;
 
     for (n = 0; (n < MAXCMD) && cmds[n] != NULL; n++);
@@ -73,7 +79,8 @@ static void add_cmd(char *cmd){
     if (n == MAXCMD) {
         return;
     }
-    cmds[n]=strdup(cmd);
+
+    cmds[n] = strdup(cmd);
 }
 
 static void usage(void)
@@ -98,37 +105,43 @@ static void usage(void)
     exit(0);
 }
 
-static int opts(int argc, char **argv){
+static int opts(int argc, char **argv)
+{
     int i;
-//    for(i=0;i<argc;i++)
+
-//        printf("%d : %s\n",i,argv[i]);
+    while((i = getopt(argc,argv,"T:P:")) != -1) {
-    /* insert your own arguments here */
-    while((i=getopt(argc,argv,"T:P:"))!=-1){
         switch(i){
-        	case 'P':
+        case 'P':
-        		pcap_file=optarg;
+            pcap_file = optarg;
-        		break;
+            break;
 #ifndef _WIN32
-          case 'T':
+        case 'T':
-            proxycommand=optarg;
+            proxycommand = optarg;
             break;
 #endif
-          default:
+        default:
-                fprintf(stderr,"unknown option %c\n",optopt);
+            fprintf(stderr, "Unknown option %c\n", optopt);
-                usage();
+            usage();
         }
     }
-    if(optind < argc)
+    if (optind < argc) {
-        host=argv[optind++];
+        host = argv[optind++];
-    while(optind < argc)
+    }
+
+    while(optind < argc) {
         add_cmd(argv[optind++]);
-    if(host==NULL)
+    }
+
+    if (host == NULL) {
         usage();
+    }
+
     return 0;
 }
 
 #ifndef HAVE_CFMAKERAW
-static void cfmakeraw(struct termios *termios_p){
+static void cfmakeraw(struct termios *termios_p)
+{
     termios_p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
     termios_p->c_oflag &= ~OPOST;
     termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
@@ -138,44 +151,53 @@ static void cfmakeraw(struct termios *termios_p){
 #endif
 
 
-static void do_cleanup(int i) {
+static void do_cleanup(int i)
+{
   /* unused variable */
   (void) i;
 
-  tcsetattr(0,TCSANOW,&terminal);
+  tcsetattr(0, TCSANOW, &terminal);
 }
 
-static void do_exit(int i) {
+static void do_exit(int i)
-  /* unused variable */
+{
-  (void) i;
+    /* unused variable */
+    (void) i;
 
-  do_cleanup(0);
+    do_cleanup(0);
-  exit(0);
+    exit(0);
 }
 
-ssh_channel chan;
+static ssh_channel chan;
-int signal_delayed=0;
+static int signal_delayed = 0;
 
-static void sigwindowchanged(int i){
+static void sigwindowchanged(int i)
-  (void) i;
+{
-  signal_delayed=1;
+    (void) i;
+    signal_delayed = 1;
 }
 
-static void setsignal(void){
+static void setsignal(void)
+{
     signal(SIGWINCH, sigwindowchanged);
-    signal_delayed=0;
+    signal_delayed = 0;
 }
 
-static void sizechanged(void){
+static void sizechanged(void)
-    struct winsize win = { 0, 0, 0, 0 };
+{
+    struct winsize win = {
+        .ws_row = 0,
+    };
+
     ioctl(1, TIOCGWINSZ, &win);
     ssh_channel_change_pty_size(chan,win.ws_col, win.ws_row);
-//    printf("Changed pty size\n");
     setsignal();
 }
 
-static void select_loop(ssh_session session,ssh_channel channel){
+static void select_loop(ssh_session session,ssh_channel channel)
+{
     ssh_connector connector_in, connector_out, connector_err;
+
     ssh_event event = ssh_event_new();
 
     /* stdin */
@@ -196,9 +218,10 @@ static void select_loop(ssh_session session,ssh_channel channel){
     ssh_connector_set_in_channel(connector_err, channel, SSH_CONNECTOR_STDERR);
     ssh_event_add_connector(event, connector_err);
 
-    while(ssh_channel_is_open(channel)){
+    while (ssh_channel_is_open(channel)) {
-        if(signal_delayed)
+        if (signal_delayed) {
             sizechanged();
+        }
         ssh_event_dopoll(event, 60000);
     }
     ssh_event_remove_connector(event, connector_in);
@@ -213,121 +236,148 @@ static void select_loop(ssh_session session,ssh_channel channel){
     ssh_channel_free(channel);
 }
 
-static void shell(ssh_session session){
+static void shell(ssh_session session)
+{
     ssh_channel channel;
     struct termios terminal_local;
     int interactive=isatty(0);
     channel = ssh_channel_new(session);
-    if(interactive){
+
-        tcgetattr(0,&terminal_local);
+    if (interactive) {
-        memcpy(&terminal,&terminal_local,sizeof(struct termios));
+        tcgetattr(0, &terminal_local);
+        memcpy(&terminal, &terminal_local, sizeof(struct termios));
     }
-    if(ssh_channel_open_session(channel)){
+
-        printf("error opening channel : %s\n",ssh_get_error(session));
+    if (ssh_channel_open_session(channel)) {
+        printf("Error opening channel : %s\n", ssh_get_error(session));
         return;
     }
-    chan=channel;
+    chan = channel;
-    if(interactive){
+    if (interactive) {
         ssh_channel_request_pty(channel);
         sizechanged();
     }
-    if(ssh_channel_request_shell(channel)){
+
-        printf("Requesting shell : %s\n",ssh_get_error(session));
+    if (ssh_channel_request_shell(channel)) {
+        printf("Requesting shell : %s\n", ssh_get_error(session));
         return;
     }
-    if(interactive){
+
+    if (interactive) {
         cfmakeraw(&terminal_local);
-        tcsetattr(0,TCSANOW,&terminal_local);
+        tcsetattr(0, TCSANOW, &terminal_local);
         setsignal();
     }
-    signal(SIGTERM,do_cleanup);
+    signal(SIGTERM, do_cleanup);
-    select_loop(session,channel);
+    select_loop(session, channel);
-    if(interactive)
+    if (interactive) {
-    	do_cleanup(0);
+        do_cleanup(0);
+    }
 }
 
-static void batch_shell(ssh_session session){
+static void batch_shell(ssh_session session)
+{
     ssh_channel channel;
     char buffer[1024];
-    int i,s=0;
+    size_t i;
-    for(i=0;i<MAXCMD && cmds[i];++i) {
+    int s = 0;
-        s+=snprintf(buffer+s,sizeof(buffer)-s,"%s ",cmds[i]);
+
-		free(cmds[i]);
+    for (i = 0; i < MAXCMD && cmds[i]; ++i) {
-		cmds[i] = NULL;
+        s += snprintf(buffer + s, sizeof(buffer) - s, "%s ", cmds[i]);
-	}
+        free(cmds[i]);
-    channel=ssh_channel_new(session);
+        cmds[i] = NULL;
+    }
+
+    channel = ssh_channel_new(session);
     ssh_channel_open_session(channel);
-    if(ssh_channel_request_exec(channel,buffer)){
+    if (ssh_channel_request_exec(channel, buffer)) {
-        printf("error executing \"%s\" : %s\n",buffer,ssh_get_error(session));
+        printf("Error executing '%s' : %s\n", buffer, ssh_get_error(session));
         return;
     }
-    select_loop(session,channel);
+    select_loop(session, channel);
 }
 
-static int client(ssh_session session){
+static int client(ssh_session session)
-  int auth=0;
+{
-  char *banner;
+    int auth = 0;
-  int state;
+    char *banner;
-  if (user)
+    int state;
-    if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0)
-      return -1;
-  if (ssh_options_set(session, SSH_OPTIONS_HOST ,host) < 0)
-    return -1;
-  if (proxycommand != NULL){
-    if(ssh_options_set(session, SSH_OPTIONS_PROXYCOMMAND, proxycommand))
-      return -1;
-  }
-  ssh_options_parse_config(session, NULL);
 
-  if(ssh_connect(session)){
+    if (user) {
-      fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
+        if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0) {
-      return -1;
+            return -1;
-  }
+        }
-  state=verify_knownhost(session);
+    }
-  if (state != 0)
+    if (ssh_options_set(session, SSH_OPTIONS_HOST ,host) < 0) {
-  	return -1;
+        return -1;
-  ssh_userauth_none(session, NULL);
+    }
-  banner=ssh_get_issue_banner(session);
+    if (proxycommand != NULL) {
-  if(banner){
+        if (ssh_options_set(session, SSH_OPTIONS_PROXYCOMMAND, proxycommand)) {
-      printf("%s\n",banner);
+            return -1;
-      free(banner);
+        }
-  }
+    }
-  auth=authenticate_console(session);
+    ssh_options_parse_config(session, NULL);
-  if(auth != SSH_AUTH_SUCCESS){
+
-  	return -1;
+    if (ssh_connect(session)) {
-  }
+        fprintf(stderr, "Connection failed : %s\n", ssh_get_error(session));
-  if(!cmds[0])
+        return -1;
-  	shell(session);
+    }
-  else
+
-  	batch_shell(session);
+    state = verify_knownhost(session);
-  return 0;
+    if (state != 0) {
+        return -1;
+    }
+
+    ssh_userauth_none(session, NULL);
+    banner = ssh_get_issue_banner(session);
+    if (banner) {
+        printf("%s\n", banner);
+        free(banner);
+    }
+    auth = authenticate_console(session);
+    if (auth != SSH_AUTH_SUCCESS) {
+        return -1;
+    }
+    if (cmds[0] == NULL) {
+        shell(session);
+    } else {
+        batch_shell(session);
+    }
+
+    return 0;
 }
 
-ssh_pcap_file pcap;
+static ssh_pcap_file pcap;
-void set_pcap(ssh_session session);
+static void set_pcap(ssh_session session)
-void set_pcap(ssh_session session){
+{
-	if(!pcap_file)
+    if (pcap_file == NULL) {
-		return;
+        return;
-	pcap=ssh_pcap_file_new();
+    }
-	if(!pcap)
+
-		return;
+    pcap = ssh_pcap_file_new();
-	if(ssh_pcap_file_open(pcap,pcap_file) == SSH_ERROR){
+    if (pcap == NULL) {
-		printf("Error opening pcap file\n");
+        return;
-		ssh_pcap_file_free(pcap);
+    }
-		pcap=NULL;
+
-		return;
+    if (ssh_pcap_file_open(pcap, pcap_file) == SSH_ERROR) {
-	}
+        printf("Error opening pcap file\n");
-	ssh_set_pcap_file(session,pcap);
+        ssh_pcap_file_free(pcap);
+        pcap = NULL;
+        return;
+    }
+    ssh_set_pcap_file(session, pcap);
 }
 
-void cleanup_pcap(void);
+static void cleanup_pcap(void)
-void cleanup_pcap(){
+{
-	if(pcap)
+    if (pcap != NULL) {
-		ssh_pcap_file_free(pcap);
+        ssh_pcap_file_free(pcap);
-	pcap=NULL;
+    }
+    pcap = NULL;
 }
 
-int main(int argc, char **argv){
+int main(int argc, char **argv)
+{
     ssh_session session;
 
     session = ssh_new();
@@ -335,12 +385,13 @@ int main(int argc, char **argv){
     ssh_callbacks_init(&cb);
     ssh_set_callbacks(session,&cb);
 
-    if(ssh_options_getopt(session, &argc, argv)) {
+    if (ssh_options_getopt(session, &argc, argv)) {
-      fprintf(stderr, "error parsing command line :%s\n",
+        fprintf(stderr,
-          ssh_get_error(session));
+                "Error parsing command line: %s\n",
-      usage();
+                ssh_get_error(session));
+        usage();
     }
-    opts(argc,argv);
+    opts(argc, argv);
     signal(SIGTERM, do_exit);
 
     set_pcap(session);

examples/ssh_server_fork.c

@@ -472,7 +472,8 @@ static int process_stderr(socket_t fd, int revents, void *userdata) {
 }
 
 static void handle_session(ssh_event event, ssh_session session) {
-    int n, rc;
+    int n;
+    int rc = 0;
 
     /* Structure for storing the pty size. */
     struct winsize wsize = {

examples/sshnetcat.c

@@ -43,7 +43,8 @@ const char *port="22";
 char *pcap_file=NULL;
 #endif
 
-static void usage(){
+static void usage(void)
+{
   fprintf(stderr,"Usage : sshnetcat [user@]host forwarded_host forwarded_port\n");
   exit(1);
 }
@@ -89,6 +90,7 @@ static void select_loop(ssh_session session,ssh_channel channel){
 		do{
             int fd;
 
+            ZERO_STRUCT(fds);
 			FD_ZERO(&fds);
 			if(!eof)
 				FD_SET(0,&fds);

include/libssh/agent.h

@@ -66,6 +66,9 @@
 #define SSH_COM_AGENT2_FAILURE                   102
 
 #define SSH_AGENT_OLD_SIGNATURE                  0x01
+/* Signature flags from draft-miller-ssh-agent-02 */
+#define SSH_AGENT_RSA_SHA2_256                   0x02
+#define SSH_AGENT_RSA_SHA2_512                   0x04
 
 struct ssh_agent_struct {
   struct ssh_socket_struct *sock;

include/libssh/auth.h

@@ -76,6 +76,14 @@ enum ssh_auth_state_e {
   SSH_AUTH_STATE_GSSAPI_TOKEN,
   /** We have sent the MIC and expecting to be authenticated */
   SSH_AUTH_STATE_GSSAPI_MIC_SENT,
+  /** We have offered a pubkey to check if it is supported */
+  SSH_AUTH_STATE_PUBKEY_OFFER_SENT,
+  /** We have sent pubkey and signature expecting to be authenticated */
+  SSH_AUTH_STATE_PUBKEY_AUTH_SENT,
+  /** We have sent a password expecting to be authenticated */
+  SSH_AUTH_STATE_PASSWORD_AUTH_SENT,
+  /** We have sent a request without auth information (method 'none') */
+  SSH_AUTH_STATE_AUTH_NONE_SENT,
 };
 
 /** @internal

include/libssh/buffer.h

@@ -24,20 +24,6 @@
 #include <stdarg.h>
 
 #include "libssh/libssh.h"
-/*
- * Describes a buffer state
- * [XXXXXXXXXXXXDATA PAYLOAD       XXXXXXXXXXXXXXXXXXXXXXXX]
- * ^            ^                  ^                       ^]
- * \_data points\_pos points here  \_used points here |    /
- *   here                                          Allocated
- */
-struct ssh_buffer_struct {
-    char *data;
-    uint32_t used;
-    uint32_t allocated;
-    uint32_t pos;
-    int secure;
-};
 
 #define SSH_BUFFER_PACK_END ((uint32_t) 0x4f65feb3)
 
@@ -54,11 +40,11 @@ void *ssh_buffer_allocate(struct ssh_buffer_struct *buffer, uint32_t len);
 int ssh_buffer_allocate_size(struct ssh_buffer_struct *buffer, uint32_t len);
 int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
                        const char *format,
-                       int argc,
+                       size_t argc,
                        va_list ap);
 int _ssh_buffer_pack(struct ssh_buffer_struct *buffer,
                      const char *format,
-                     int argc,
+                     size_t argc,
                      ...);
 #define ssh_buffer_pack(buffer, format, ...) \
     _ssh_buffer_pack((buffer), (format), __VA_NARG__(__VA_ARGS__), __VA_ARGS__, SSH_BUFFER_PACK_END)

include/libssh/bytearray.h

@@ -0,0 +1,90 @@
+/*
+ * This file is part of the SSH Library
+ *
+ * Copyright (c) 2018 Andreas Schneider <asn@cryptomilk.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef _BYTEARRAY_H
+#define _BYTEARRAY_H
+
+#define _DATA_BYTE_CONST(data, pos) \
+    ((uint8_t)(((const uint8_t *)(data))[(pos)]))
+
+#define _DATA_BYTE(data, pos) \
+    (((uint8_t *)(data))[(pos)])
+
+/*
+ * These macros pull or push integer values from byte arrays stored in
+ * little-endian byte order.
+ */
+#define PULL_LE_U8(data, pos) \
+    (_DATA_BYTE_CONST(data, pos))
+
+#define PULL_LE_U16(data, pos) \
+    ((uint16_t)PULL_LE_U8(data, pos) | ((uint16_t)(PULL_LE_U8(data, (pos) + 1))) << 8)
+
+#define PULL_LE_U32(data, pos) \
+    ((uint32_t)(PULL_LE_U16(data, pos) | ((uint32_t)PULL_LE_U16(data, (pos) + 2)) << 16))
+
+#define PULL_LE_U64(data, pos) \
+    ((uint64_t)(PULL_LE_U32(data, pos) | ((uint64_t)PULL_LE_U32(data, (pos) + 4)) << 32))
+
+
+#define PUSH_LE_U8(data, pos, val) \
+    (_DATA_BYTE(data, pos) = ((uint8_t)(val)))
+
+#define PUSH_LE_U16(data, pos, val) \
+    (PUSH_LE_U8((data), (pos), (uint8_t)((uint16_t)(val) & 0xff)), PUSH_LE_U8((data), (pos) + 1, (uint8_t)((uint16_t)(val) >> 8)))
+
+#define PUSH_LE_U32(data, pos, val) \
+    (PUSH_LE_U16((data), (pos), (uint16_t)((uint32_t)(val) & 0xffff)), PUSH_LE_U16((data), (pos) + 2, (uint16_t)((uint32_t)(val) >> 16)))
+
+#define PUSH_LE_U64(data, pos, val) \
+    (PUSH_LE_U32((data), (pos), (uint32_t)((uint64_t)(val) & 0xffffffff)), PUSH_LE_U32((data), (pos) + 4, (uint32_t)((uint64_t)(val) >> 32)))
+
+
+
+/*
+ * These macros pull or push integer values from byte arrays stored in
+ * big-endian byte order (network byte order).
+ */
+#define PULL_BE_U8(data, pos) \
+    (_DATA_BYTE_CONST(data, pos))
+
+#define PULL_BE_U16(data, pos) \
+    ((((uint16_t)(PULL_BE_U8(data, pos))) << 8) | (uint16_t)PULL_BE_U8(data, (pos) + 1))
+
+#define PULL_BE_U32(data, pos) \
+    ((((uint32_t)PULL_BE_U16(data, pos)) << 16) | (uint32_t)(PULL_BE_U16(data, (pos) + 2)))
+
+#define PULL_BE_U64(data, pos) \
+    ((((uint64_t)PULL_BE_U32(data, pos)) << 32) | (uint64_t)(PULL_BE_U32(data, (pos) + 4)))
+
+
+
+#define PUSH_BE_U8(data, pos, val) \
+    (_DATA_BYTE(data, pos) = ((uint8_t)(val)))
+
+#define PUSH_BE_U16(data, pos, val) \
+    (PUSH_BE_U8((data), (pos), (uint8_t)(((uint16_t)(val)) >> 8)), PUSH_BE_U8((data), (pos) + 1, (uint8_t)((val) & 0xff)))
+
+#define PUSH_BE_U32(data, pos, val) \
+    (PUSH_BE_U16((data), (pos), (uint16_t)(((uint32_t)(val)) >> 16)), PUSH_BE_U16((data), (pos) + 2, (uint16_t)((val) & 0xffff)))
+
+#define PUSH_BE_U64(data, pos, val) \
+    (PUSH_BE_U32((data), (pos), (uint32_t)(((uint64_t)(val)) >> 32)), PUSH_BE_U32((data), (pos) + 4, (uint32_t)((val) & 0xffffffff)))
+
+#endif /* _BYTEARRAY_H */

include/libssh/channels.h

@@ -92,12 +92,15 @@ SSH_PACKET_CALLBACK(channel_rcv_close);
 SSH_PACKET_CALLBACK(channel_rcv_request);
 SSH_PACKET_CALLBACK(channel_rcv_data);
 
-ssh_channel ssh_channel_new(ssh_session session);
 int channel_default_bufferize(ssh_channel channel, void *data, int len,
         int is_stderr);
 int ssh_channel_flush(ssh_channel channel);
 uint32_t ssh_channel_new_id(ssh_session session);
 ssh_channel ssh_channel_from_local(ssh_session session, uint32_t id);
 void ssh_channel_do_free(ssh_channel channel);
+int ssh_global_request(ssh_session session,
+                       const char *request,
+                       ssh_buffer buffer,
+                       int reply);
 
 #endif /* CHANNELS_H_ */

include/libssh/config.h

@@ -0,0 +1,66 @@
+/*
+ * config.h - parse the ssh config file
+ *
+ * This file is part of the SSH Library
+ *
+ * Copyright (c) 2009-2018    by Andreas Schneider <asn@cryptomilk.org>
+ *
+ * The SSH Library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The SSH Library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the SSH Library; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#ifndef LIBSSH_CONFIG_H_
+#define LIBSSH_CONFIG_H_
+
+
+enum ssh_config_opcode_e {
+    /* Unknown opcode */
+    SOC_UNKNOWN = -3,
+    /* Known and not applicable to libssh */
+    SOC_NA = -2,
+    /* Known but not supported by current libssh version */
+    SOC_UNSUPPORTED = -1,
+    SOC_HOST,
+    SOC_MATCH,
+    SOC_HOSTNAME,
+    SOC_PORT,
+    SOC_USERNAME,
+    SOC_IDENTITY,
+    SOC_CIPHERS,
+    SOC_MACS,
+    SOC_COMPRESSION,
+    SOC_TIMEOUT,
+    SOC_PROTOCOL,
+    SOC_STRICTHOSTKEYCHECK,
+    SOC_KNOWNHOSTS,
+    SOC_PROXYCOMMAND,
+    SOC_GSSAPISERVERIDENTITY,
+    SOC_GSSAPICLIENTIDENTITY,
+    SOC_GSSAPIDELEGATECREDENTIALS,
+    SOC_INCLUDE,
+    SOC_BINDADDRESS,
+    SOC_GLOBALKNOWNHOSTSFILE,
+    SOC_LOGLEVEL,
+    SOC_HOSTKEYALGORITHMS,
+    SOC_KEXALGORITHMS,
+    SOC_GSSAPIAUTHENTICATION,
+    SOC_KBDINTERACTIVEAUTHENTICATION,
+    SOC_PASSWORDAUTHENTICATION,
+    SOC_PUBKEYAUTHENTICATION,
+    SOC_PUBKEYACCEPTEDTYPES,
+
+    SOC_MAX /* Keep this one last in the list */
+};
+#endif /* LIBSSH_CONFIG_H_ */

include/libssh/crc32.h

@@ -1,28 +0,0 @@
-/*
- * crc32.c - simple CRC32 code
- *
- * This file is part of the SSH Library
- *
- * Copyright (c) 2005 by Aris Adamantiadis
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef _CRC32_H
-#define _CRC32_H
-
-uint32_t ssh_crc32(const char *buf, uint32_t len);
-
-#endif /* _CRC32_H */

include/libssh/crypto.h

@@ -29,6 +29,8 @@
 
 #ifdef HAVE_LIBGCRYPT
 #include <gcrypt.h>
+#elif defined(HAVE_LIBMBEDCRYPTO)
+#include <mbedtls/gcm.h>
 #endif
 #include "libssh/wrapper.h"
 
@@ -48,6 +50,9 @@
 
 #define DIGEST_MAX_LEN 64
 
+#define AES_GCM_TAGLEN 16
+#define AES_GCM_IVLEN  12
+
 enum ssh_key_exchange_e {
   /* diffie-hellman-group1-sha1 */
   SSH_KEX_DH_GROUP1_SHA1=1,
@@ -62,7 +67,11 @@ enum ssh_key_exchange_e {
   /* curve25519-sha256@libssh.org */
   SSH_KEX_CURVE25519_SHA256_LIBSSH_ORG,
   /* curve25519-sha256 */
-  SSH_KEX_CURVE25519_SHA256
+  SSH_KEX_CURVE25519_SHA256,
+  /* diffie-hellman-group16-sha512 */
+  SSH_KEX_DH_GROUP16_SHA512,
+  /* diffie-hellman-group18-sha512 */
+  SSH_KEX_DH_GROUP18_SHA512,
 };
 
 enum ssh_cipher_e {
@@ -74,7 +83,10 @@ enum ssh_cipher_e {
     SSH_AES256_CBC,
     SSH_AES128_CTR,
     SSH_AES192_CTR,
-    SSH_AES256_CTR
+    SSH_AES256_CTR,
+    SSH_AEAD_AES128_GCM,
+    SSH_AEAD_AES256_GCM,
+    SSH_AEAD_CHACHA20_POLY1305
 };
 
 struct ssh_crypto_struct {
@@ -132,6 +144,7 @@ struct ssh_cipher_struct {
     size_t keylen; /* length of the key structure */
 #ifdef HAVE_LIBGCRYPT
     gcry_cipher_hd_t *key;
+    unsigned char last_iv[AES_GCM_IVLEN];
 #elif defined HAVE_LIBCRYPTO
     struct ssh_3des_key_schedule *des3_key;
     struct ssh_aes_key_schedule *aes_key;
@@ -141,6 +154,10 @@ struct ssh_cipher_struct {
     mbedtls_cipher_context_t encrypt_ctx;
     mbedtls_cipher_context_t decrypt_ctx;
     mbedtls_cipher_type_t type;
+#ifdef MBEDTLS_GCM_C
+    mbedtls_gcm_context gcm_ctx;
+    unsigned char last_iv[AES_GCM_IVLEN];
+#endif /* MBEDTLS_GCM_C */
 #endif
     struct chacha20_poly1305_keysched *chacha20_schedule;
     unsigned int keysize; /* bytes of key used. != keylen */
@@ -148,10 +165,14 @@ struct ssh_cipher_struct {
     /* sets the new key for immediate use */
     int (*set_encrypt_key)(struct ssh_cipher_struct *cipher, void *key, void *IV);
     int (*set_decrypt_key)(struct ssh_cipher_struct *cipher, void *key, void *IV);
-    void (*encrypt)(struct ssh_cipher_struct *cipher, void *in, void *out,
+    void (*encrypt)(struct ssh_cipher_struct *cipher,
-        unsigned long len);
+                    void *in,
-    void (*decrypt)(struct ssh_cipher_struct *cipher, void *in, void *out,
+                    void *out,
-        unsigned long len);
+                    size_t len);
+    void (*decrypt)(struct ssh_cipher_struct *cipher,
+                    void *in,
+                    void *out,
+                    size_t len);
     void (*aead_encrypt)(struct ssh_cipher_struct *cipher, void *in, void *out,
         size_t len, uint8_t *mac, uint64_t seq);
     int (*aead_decrypt_length)(struct ssh_cipher_struct *cipher, void *in,

include/libssh/kex.h

@@ -43,6 +43,8 @@ char **ssh_space_tokenize(const char *chain);
 int ssh_get_kex1(ssh_session session);
 char *ssh_find_matching(const char *in_d, const char *what_d);
 const char *ssh_kex_get_supported_method(uint32_t algo);
+const char *ssh_kex_get_default_methods(uint32_t algo);
 const char *ssh_kex_get_description(uint32_t algo);
+char *ssh_client_select_hostkeys(ssh_session session);
 
 #endif /* KEX_H_ */

include/libssh/knownhosts.h

@@ -23,5 +23,9 @@
 #define SSH_KNOWNHOSTS_H_
 
 struct ssh_list *ssh_known_hosts_get_algorithms(ssh_session session);
+enum ssh_known_hosts_e
+ssh_session_get_known_hosts_entry_file(ssh_session session,
+                                       const char *filename,
+                                       struct ssh_knownhosts_entry **pentry);
 
 #endif /* SSH_KNOWNHOSTS_H_ */

include/libssh/libmbedcrypto.h

@@ -101,8 +101,7 @@ int ssh_mbedcry_is_bit_set(bignum num, size_t pos);
         mbedtls_mpi_size(num))
 #define bignum_cmp(num1, num2) mbedtls_mpi_cmp_mpi(num1, num2)
 
-mbedtls_entropy_context ssh_mbedtls_entropy;
+mbedtls_ctr_drbg_context *ssh_get_mbedtls_ctr_drbg_context(void);
-mbedtls_ctr_drbg_context ssh_mbedtls_ctr_drbg;
 
 int ssh_mbedtls_random(void *where, int len, int strong);
 

include/libssh/libssh.h

@@ -78,7 +78,7 @@
 
 /* libssh version */
 #define LIBSSH_VERSION_MAJOR  0
-#define LIBSSH_VERSION_MINOR  7
+#define LIBSSH_VERSION_MINOR  8
 #define LIBSSH_VERSION_MICRO  90
 
 #define LIBSSH_VERSION_INT SSH_VERSION_INT(LIBSSH_VERSION_MAJOR, \
@@ -239,11 +239,39 @@ enum ssh_server_known_e {
 };
 
 enum ssh_known_hosts_e {
+    /**
+     * There had been an error checking the host.
+     */
     SSH_KNOWN_HOSTS_ERROR = -2,
+
+    /**
+     * The known host file does not exist. The host is thus unknown. File will
+     * be created if host key is accepted.
+     */
     SSH_KNOWN_HOSTS_NOT_FOUND = -1,
+
+    /**
+     * The server is unknown. User should confirm the public key hash is
+     * correct.
+     */
     SSH_KNOWN_HOSTS_UNKNOWN = 0,
+
+    /**
+     * The server is known and has not changed.
+     */
     SSH_KNOWN_HOSTS_OK,
+
+    /**
+     * The server key has changed. Either you are under attack or the
+     * administrator changed the key. You HAVE to warn the user about a
+     * possible attack.
+     */
     SSH_KNOWN_HOSTS_CHANGED,
+
+    /**
+     * The server gave use a key of a type while we had an other type recorded.
+     * It is a possible attack.
+     */
     SSH_KNOWN_HOSTS_OTHER,
 };
 
@@ -376,6 +404,8 @@ enum ssh_options_e {
   SSH_OPTIONS_GSSAPI_AUTH,
   SSH_OPTIONS_GLOBAL_KNOWNHOSTS,
   SSH_OPTIONS_NODELAY,
+  SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
+  SSH_OPTIONS_PROCESS_CONFIG,
 };
 
 enum {
@@ -500,7 +530,8 @@ LIBSSH_API int ssh_get_server_publickey(ssh_session session, ssh_key *key);
 
 enum ssh_publickey_hash_type {
     SSH_PUBLICKEY_HASH_SHA1,
-    SSH_PUBLICKEY_HASH_MD5
+    SSH_PUBLICKEY_HASH_MD5,
+    SSH_PUBLICKEY_HASH_SHA256
 };
 LIBSSH_API int ssh_get_publickey_hash(const ssh_key key,
                                       enum ssh_publickey_hash_type type,
@@ -513,6 +544,10 @@ SSH_DEPRECATED LIBSSH_API ssh_channel ssh_forward_accept(ssh_session session, in
 SSH_DEPRECATED LIBSSH_API int ssh_forward_cancel(ssh_session session, const char *address, int port);
 SSH_DEPRECATED LIBSSH_API int ssh_forward_listen(ssh_session session, const char *address, int port, int *bound_port);
 SSH_DEPRECATED LIBSSH_API int ssh_get_publickey(ssh_session session, ssh_key *key);
+SSH_DEPRECATED LIBSSH_API int ssh_write_knownhost(ssh_session session);
+SSH_DEPRECATED LIBSSH_API char *ssh_dump_knownhost(ssh_session session);
+SSH_DEPRECATED LIBSSH_API int ssh_is_server_known(ssh_session session);
+
 
 
 LIBSSH_API int ssh_get_random(void *where,int len,int strong);
@@ -522,7 +557,6 @@ LIBSSH_API int ssh_get_poll_flags(ssh_session session);
 LIBSSH_API int ssh_init(void);
 LIBSSH_API int ssh_is_blocking(ssh_session session);
 LIBSSH_API int ssh_is_connected(ssh_session session);
-LIBSSH_API int ssh_is_server_known(ssh_session session);
 
 /* KNOWN HOSTS */
 LIBSSH_API void ssh_knownhosts_entry_free(struct ssh_knownhosts_entry *entry);
@@ -563,6 +597,8 @@ SSH_DEPRECATED LIBSSH_API void ssh_log(ssh_session session,
 
 LIBSSH_API ssh_channel ssh_message_channel_request_open_reply_accept(ssh_message msg);
 LIBSSH_API int ssh_message_channel_request_reply_success(ssh_message msg);
+#define SSH_MESSAGE_FREE(x) \
+    do { if ((x) != NULL) { ssh_message_free(x); (x) = NULL; } } while(0)
 LIBSSH_API void ssh_message_free(ssh_message msg);
 LIBSSH_API ssh_message ssh_message_get(ssh_session session);
 LIBSSH_API int ssh_message_subtype(ssh_message msg);
@@ -600,6 +636,8 @@ typedef int (*ssh_auth_callback) (const char *prompt, char *buf, size_t len,
     int echo, int verify, void *userdata);
 
 LIBSSH_API ssh_key ssh_key_new(void);
+#define SSH_KEY_FREE(x) \
+    do { if ((x) != NULL) { ssh_key_free(x); x = NULL; } } while(0)
 LIBSSH_API void ssh_key_free (ssh_key key);
 LIBSSH_API enum ssh_keytypes_e ssh_key_type(const ssh_key key);
 LIBSSH_API const char *ssh_key_type_to_char(enum ssh_keytypes_e type);
@@ -617,6 +655,11 @@ LIBSSH_API int ssh_pki_import_privkey_base64(const char *b64_key,
                                              ssh_auth_callback auth_fn,
                                              void *auth_data,
                                              ssh_key *pkey);
+LIBSSH_API int ssh_pki_export_privkey_base64(const ssh_key privkey,
+                                             const char *passphrase,
+                                             ssh_auth_callback auth_fn,
+                                             void *auth_data,
+                                             char **b64_key);
 LIBSSH_API int ssh_pki_import_privkey_file(const char *filename,
                                            const char *passphrase,
                                            ssh_auth_callback auth_fn,
@@ -652,6 +695,10 @@ LIBSSH_API int ssh_pki_export_pubkey_file(const ssh_key key,
 
 LIBSSH_API const char *ssh_pki_key_ecdsa_name(const ssh_key key);
 
+LIBSSH_API char *ssh_get_fingerprint_hash(enum ssh_publickey_hash_type type,
+                                          unsigned char *hash,
+                                          size_t len);
+LIBSSH_API void ssh_print_hash(enum ssh_publickey_hash_type type, unsigned char *hash, size_t len);
 LIBSSH_API void ssh_print_hexa(const char *descr, const unsigned char *what, size_t len);
 LIBSSH_API int ssh_send_ignore (ssh_session session, const char *data);
 LIBSSH_API int ssh_send_debug (ssh_session session, const char *message, int always_display);
@@ -719,19 +766,21 @@ LIBSSH_API int ssh_userauth_kbdint_setanswer(ssh_session session, unsigned int i
     const char *answer);
 LIBSSH_API int ssh_userauth_gssapi(ssh_session session);
 LIBSSH_API const char *ssh_version(int req_version);
-LIBSSH_API int ssh_write_knownhost(ssh_session session);
-LIBSSH_API char *ssh_dump_knownhost(ssh_session session);
 
 LIBSSH_API void ssh_string_burn(ssh_string str);
 LIBSSH_API ssh_string ssh_string_copy(ssh_string str);
 LIBSSH_API void *ssh_string_data(ssh_string str);
 LIBSSH_API int ssh_string_fill(ssh_string str, const void *data, size_t len);
+#define SSH_STRING_FREE(x) \
+    do { if ((x) != NULL) { ssh_string_free(x); x = NULL; } } while(0)
 LIBSSH_API void ssh_string_free(ssh_string str);
 LIBSSH_API ssh_string ssh_string_from_char(const char *what);
 LIBSSH_API size_t ssh_string_len(ssh_string str);
 LIBSSH_API ssh_string ssh_string_new(size_t size);
 LIBSSH_API const char *ssh_string_get_char(ssh_string str);
 LIBSSH_API char *ssh_string_to_char(ssh_string str);
+#define SSH_STRING_FREE_CHAR(x) \
+    do { if ((x) != NULL) { ssh_string_free_char(x); x = NULL; } } while(0)
 LIBSSH_API void ssh_string_free_char(char *s);
 
 LIBSSH_API int ssh_getpass(const char *prompt, char *buf, size_t len, int echo,
@@ -760,6 +809,8 @@ LIBSSH_API const char* ssh_get_hmac_out(ssh_session session);
 
 LIBSSH_API ssh_buffer ssh_buffer_new(void);
 LIBSSH_API void ssh_buffer_free(ssh_buffer buffer);
+#define SSH_BUFFER_FREE(x) \
+    do { if ((x) != NULL) { ssh_buffer_free(x); x = NULL; } } while(0)
 LIBSSH_API int ssh_buffer_reinit(ssh_buffer buffer);
 LIBSSH_API int ssh_buffer_add_data(ssh_buffer buffer, const void *data, uint32_t len);
 LIBSSH_API uint32_t ssh_buffer_get_data(ssh_buffer buffer, void *data, uint32_t requestedlen);

include/libssh/libsshpp.hpp

@@ -195,15 +195,24 @@ public:
     return ret;
   }
 
-  /** @brief Authenticate through the "keyboard-interactive" method.
+  /**
-   * @param[in] The username to authenticate. You can specify NULL if ssh_option_set_username() has been used. You cannot try two different logins in a row.
+   * @brief Authenticate through the "keyboard-interactive" method.
-   * @param[in] Undocumented. Set it to NULL.
+   *
+   * @param[in] username The username to authenticate. You can specify NULL if
+   *                     ssh_option_set_username() has been used. You cannot
+   *                     try two different logins in a row.
+   *
+   * @param[in] submethods Undocumented. Set it to NULL.
+   *
    * @throws SshException on error
-   * @returns SSH_AUTH_SUCCESS, SSH_AUTH_PARTIAL, SSH_AUTH_DENIED, SSH_AUTH_ERROR, SSH_AUTH_INFO, SSH_AUTH_AGAIN
+   *
+   * @returns SSH_AUTH_SUCCESS, SSH_AUTH_PARTIAL, SSH_AUTH_DENIED,
+   *          SSH_AUTH_ERROR, SSH_AUTH_INFO, SSH_AUTH_AGAIN
+   *
    * @see ssh_userauth_kbdint
    */
   int userauthKbdint(const char* username, const char* submethods){
-    int ret=ssh_userauth_kbdint(c_session,NULL,NULL);
+    int ret = ssh_userauth_kbdint(c_session, username, submethods);
     ssh_throw(ret);
     return ret;
   }
@@ -216,15 +225,25 @@ public:
     return ssh_userauth_kbdint_getnprompts(c_session);
   }
 
-  /** @brief Set the answer for a question from a message block..
+  /**
-   * @param[in] index The number of the ith prompt.
+   * @brief Set the answer for a question from a message block.
-   * @param[in] The answer to give to the server. The answer MUST be encoded UTF-8. It is up to the server how to interpret the value and validate it. However, if you read the answer in some other encoding, you MUST convert it to UTF-8.
+   *
+   * @param[in] index The index number of the prompt.
+   * @param[in] answer The answer to give to the server. The answer MUST be
+   *                   encoded UTF-8. It is up to the server how to interpret
+   *                   the value and validate it. However, if you read the
+   *                   answer in some other encoding, you MUST convert it to
+   *                   UTF-8.
+   *
    * @throws SshException on error
+   *
    * @returns 0 on success, < 0 on error
+   *
    * @see ssh_userauth_kbdint_setanswer
    */
-  int userauthKbdintSetAnswer(unsigned int i, const char* answer){
+  int userauthKbdintSetAnswer(unsigned int index, const char *answer)
-    int ret=ssh_userauth_kbdint_setanswer(c_session, i, answer);
+  {
+    int ret = ssh_userauth_kbdint_setanswer(c_session, index, answer);
     ssh_throw(ret);
     return ret;
   }
@@ -316,11 +335,10 @@ public:
    * @see ssh_get_issue_banner
    */
   std::string getIssueBanner(){
-    char *banner=ssh_get_issue_banner(c_session);
+    char *banner = ssh_get_issue_banner(c_session);
-    std::string ret;
+    std::string ret = "";
-    if (banner)
+    if (banner != NULL) {
-    {
+      ret = std::string(banner);
-      ret= std::string(banner);
       ::free(banner);
     }
     return ret;
@@ -389,7 +407,7 @@ public:
    * @see ssh_write_knownhost
    */
   int writeKnownhost(){
-    int ret = ssh_write_knownhost(c_session);
+    int ret = ssh_session_update_known_hosts(c_session);
     ssh_throw(ret);
     return ret;
   }
@@ -438,9 +456,9 @@ private:
 class Channel {
   friend class Session;
 public:
-  Channel(Session &session){
+  Channel(Session &ssh_session){
-    channel=ssh_channel_new(session.getCSession());
+    channel = ssh_channel_new(ssh_session.getCSession());
-    this->session=&session;
+    this->session = &ssh_session;
   }
   ~Channel(){
     ssh_channel_free(channel);
@@ -641,9 +659,9 @@ protected:
   ssh_channel channel;
 
 private:
-  Channel (Session &session, ssh_channel c_channel){
+  Channel (Session &ssh_session, ssh_channel c_channel){
     this->channel=c_channel;
-    this->session=&session;
+    this->session = &ssh_session;
   }
   /* No copy and no = operator */
   Channel(const Channel &);

include/libssh/messages.h

@@ -101,7 +101,6 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_request);
 
 int ssh_message_handle_channel_request(ssh_session session, ssh_channel channel, ssh_buffer packet,
     const char *request, uint8_t want_reply);
-void ssh_message_queue(ssh_session session, ssh_message message);
 ssh_message ssh_message_pop_head(ssh_session session);
 int ssh_message_channel_request_open_reply_accept_channel(ssh_message msg, ssh_channel chan);
 

include/libssh/misc.h

@@ -81,4 +81,6 @@ int ssh_timeout_update(struct ssh_timestamp *ts, int timeout);
 
 int ssh_match_group(const char *group, const char *object);
 
+void uint64_inc(unsigned char *counter);
+
 #endif /* MISC_H_ */

include/libssh/packet.h

@@ -43,6 +43,12 @@ enum ssh_packet_state_e {
   PACKET_STATE_PROCESSING
 };
 
+enum ssh_packet_filter_result_e {
+    SSH_PACKET_UNKNOWN,
+    SSH_PACKET_ALLOWED,
+    SSH_PACKET_DENIED
+};
+
 int ssh_packet_send(ssh_session session);
 
 SSH_PACKET_CALLBACK(ssh_packet_unimplemented);
@@ -51,6 +57,7 @@ SSH_PACKET_CALLBACK(ssh_packet_ignore_callback);
 SSH_PACKET_CALLBACK(ssh_packet_dh_reply);
 SSH_PACKET_CALLBACK(ssh_packet_newkeys);
 SSH_PACKET_CALLBACK(ssh_packet_service_accept);
+SSH_PACKET_CALLBACK(ssh_packet_ext_info);
 
 #ifdef WITH_SERVER
 SSH_PACKET_CALLBACK(ssh_packet_kexdh_init);
@@ -63,6 +70,7 @@ int ssh_packet_parse_type(ssh_session session);
 int ssh_packet_socket_callback(const void *data, size_t len, void *user);
 void ssh_packet_register_socket_callback(ssh_session session, struct ssh_socket_struct *s);
 void ssh_packet_set_callbacks(ssh_session session, ssh_packet_callbacks callbacks);
+void ssh_packet_remove_callbacks(ssh_session session, ssh_packet_callbacks callbacks);
 void ssh_packet_set_default_callbacks(ssh_session session);
 void ssh_packet_process(ssh_session session, uint8_t type);
 

include/libssh/pki.h

@@ -44,23 +44,23 @@ struct ssh_key_struct {
     int flags;
     const char *type_c; /* Don't free it ! it is static */
     int ecdsa_nid;
-#ifdef HAVE_LIBGCRYPT
+#if defined(HAVE_LIBGCRYPT)
     gcry_sexp_t dsa;
     gcry_sexp_t rsa;
     gcry_sexp_t ecdsa;
-#elif HAVE_LIBMBEDCRYPTO
+#elif defined(HAVE_LIBMBEDCRYPTO)
     mbedtls_pk_context *rsa;
     mbedtls_ecdsa_context *ecdsa;
     void *dsa;
-#elif HAVE_LIBCRYPTO
+#elif defined(HAVE_LIBCRYPTO)
     DSA *dsa;
     RSA *rsa;
-#ifdef HAVE_OPENSSL_ECC
+# if defined(HAVE_OPENSSL_ECC)
     EC_KEY *ecdsa;
-#else
+# else
     void *ecdsa;
-#endif /* HAVE_OPENSSL_EC_H */
+# endif /* HAVE_OPENSSL_EC_H */
-#endif
+#endif /* HAVE_LIBGCRYPT */
     ed25519_pubkey *ed25519_pubkey;
     ed25519_privkey *ed25519_privkey;
     void *cert;
@@ -69,12 +69,13 @@ struct ssh_key_struct {
 
 struct ssh_signature_struct {
     enum ssh_keytypes_e type;
+    enum ssh_digest_e hash_type;
     const char *type_c;
-#ifdef HAVE_LIBGCRYPT
+#if defined(HAVE_LIBGCRYPT)
     gcry_sexp_t dsa_sig;
     gcry_sexp_t rsa_sig;
     gcry_sexp_t ecdsa_sig;
-#elif defined HAVE_LIBCRYPTO
+#elif defined(HAVE_LIBCRYPTO)
     DSA_SIG *dsa_sig;
     ssh_string rsa_sig;
 # ifdef HAVE_OPENSSL_ECC
@@ -82,10 +83,10 @@ struct ssh_signature_struct {
 # else
     void *ecdsa_sig;
 # endif
-#elif defined HAVE_LIBMBEDCRYPTO
+#elif defined(HAVE_LIBMBEDCRYPTO)
     ssh_string rsa_sig;
     struct mbedtls_ecdsa_sig ecdsa_sig;
-#endif
+#endif /* HAVE_LIBGCRYPT */
     ed25519_signature *ed25519_sig;
 };
 
@@ -95,6 +96,11 @@ typedef struct ssh_signature_struct *ssh_signature;
 ssh_key ssh_key_dup(const ssh_key key);
 void ssh_key_clean (ssh_key key);
 
+const char *
+ssh_key_get_signature_algorithm(ssh_session session,
+                                enum ssh_keytypes_e type);
+enum ssh_keytypes_e ssh_key_type_from_signature_name(const char *name);
+
 /* SSH Signature Functions */
 ssh_signature ssh_signature_new(void);
 void ssh_signature_free(ssh_signature sign);
@@ -104,11 +110,11 @@ int ssh_pki_export_signature_blob(const ssh_signature sign,
 int ssh_pki_import_signature_blob(const ssh_string sig_blob,
                                   const ssh_key pubkey,
                                   ssh_signature *psig);
-int ssh_pki_signature_verify_blob(ssh_session session,
+int ssh_pki_signature_verify(ssh_session session,
-                                  ssh_string sig_blob,
+                             ssh_signature sig,
-                                  const ssh_key key,
+                             const ssh_key key,
-                                  unsigned char *digest,
+                             unsigned char *digest,
-                                  size_t dlen);
+                             size_t dlen);
 
 /* SSH Public Key Functions */
 int ssh_pki_export_pubkey_blob(const ssh_key key,
@@ -133,4 +139,5 @@ ssh_string ssh_srv_pki_do_sign_sessionid(ssh_session session,
 ssh_public_key ssh_pki_convert_key_to_publickey(const ssh_key key);
 ssh_private_key ssh_pki_convert_key_to_privatekey(const ssh_key key);
 
+int ssh_key_algorithm_allowed(ssh_session session, const char *type);
 #endif /* PKI_H_ */

include/libssh/pki_priv.h

@@ -45,6 +45,10 @@ int bcrypt_pbkdf(const char *pass,
 
 int pki_key_ecdsa_nid_from_name(const char *name);
 const char *pki_key_ecdsa_nid_to_name(int nid);
+const char *ssh_key_signature_to_char(enum ssh_keytypes_e type,
+                                      enum ssh_digest_e hash_type);
+enum ssh_digest_e ssh_key_type_to_hash(ssh_session session,
+                                       enum ssh_keytypes_e type);
 
 /* SSH Key Functions */
 ssh_key pki_key_dup(const ssh_key key, int demote);
@@ -68,6 +72,9 @@ ssh_string pki_private_key_to_pem(const ssh_key key,
                                   const char *passphrase,
                                   ssh_auth_callback auth_fn,
                                   void *auth_data);
+int pki_import_privkey_buffer(enum ssh_keytypes_e type,
+                              ssh_buffer buffer,
+                              ssh_key *pkey);
 
 /* SSH Public Key Functions */
 int pki_pubkey_build_dss(ssh_key key,
@@ -81,11 +88,32 @@ int pki_pubkey_build_rsa(ssh_key key,
 int pki_pubkey_build_ecdsa(ssh_key key, int nid, ssh_string e);
 ssh_string pki_publickey_to_blob(const ssh_key key);
 
+/* SSH Private Key Functions */
+int pki_privkey_build_dss(ssh_key key,
+                          ssh_string p,
+                          ssh_string q,
+                          ssh_string g,
+                          ssh_string pubkey,
+                          ssh_string privkey);
+int pki_privkey_build_rsa(ssh_key key,
+                          ssh_string n,
+                          ssh_string e,
+                          ssh_string d,
+                          ssh_string iqmp,
+                          ssh_string p,
+                          ssh_string q);
+int pki_privkey_build_ecdsa(ssh_key key,
+                            int nid,
+                            ssh_string e,
+                            ssh_string exp);
+ssh_string pki_publickey_to_blob(const ssh_key key);
+
 /* SSH Signature Functions */
 ssh_string pki_signature_to_blob(const ssh_signature sign);
 ssh_signature pki_signature_from_blob(const ssh_key pubkey,
                                       const ssh_string sig_blob,
-                                      enum ssh_keytypes_e type);
+                                      enum ssh_keytypes_e type,
+                                      enum ssh_digest_e hash_type);
 int pki_signature_verify(ssh_session session,
                          const ssh_signature sig,
                          const ssh_key key,
@@ -93,12 +121,18 @@ int pki_signature_verify(ssh_session session,
                          size_t hlen);
 
 /* SSH Signing Functions */
-ssh_signature pki_do_sign(const ssh_key privkey,
+#define pki_do_sign(key, hash, hlen) \
-                          const unsigned char *hash,
+    pki_do_sign_hash(key, hash, hlen, SSH_DIGEST_AUTO)
-                          size_t hlen);
+ssh_signature pki_do_sign_hash(const ssh_key privkey,
-ssh_signature pki_do_sign_sessionid(const ssh_key key,
+                               const unsigned char *hash,
-                                    const unsigned char *hash,
+                               size_t hlen,
-                                    size_t hlen);
+                               enum ssh_digest_e hash_type);
+#define pki_do_sign_sessionid(key, hash, hlen) \
+    pki_do_sign_sessionid_hash(key, hash, hlen, SSH_DIGEST_AUTO)
+ssh_signature pki_do_sign_sessionid_hash(const ssh_key key,
+                                        const unsigned char *hash,
+                                        size_t hlen,
+                                        enum ssh_digest_e hash_type);
 int pki_ed25519_sign(const ssh_key privkey, ssh_signature sig,
         const unsigned char *hash, size_t hlen);
 int pki_ed25519_verify(const ssh_key pubkey, ssh_signature sig,
@@ -110,8 +144,12 @@ int pki_ed25519_key_dup(ssh_key new, const ssh_key key);
 int pki_ed25519_public_key_to_blob(ssh_buffer buffer, ssh_key key);
 ssh_string pki_ed25519_sig_to_blob(ssh_signature sig);
 int pki_ed25519_sig_from_blob(ssh_signature sig, ssh_string sig_blob);
+int pki_privkey_build_ed25519(ssh_key key,
+                              ssh_string pubkey,
+                              ssh_string privkey);
 
 /* PKI Container OpenSSH */
+ssh_key ssh_pki_openssh_pubkey_import(const char *text_key);
 ssh_key ssh_pki_openssh_privkey_import(const char *text_key,
         const char *passphrase, ssh_auth_callback auth_fn, void *auth_data);
 ssh_string ssh_pki_openssh_privkey_export(const ssh_key privkey,

include/libssh/priv.h

@@ -29,6 +29,7 @@
 #ifndef _LIBSSH_PRIV_H
 #define _LIBSSH_PRIV_H
 
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -44,6 +45,10 @@
 # endif
 #endif /* !defined(HAVE_STRTOULL) */
 
+#if !defined(HAVE_STRNDUP)
+char *strndup(const char *s, size_t n);
+#endif /* ! HAVE_STRNDUP */
+
 #ifdef HAVE_BYTESWAP_H
 #include <byteswap.h>
 #endif
@@ -124,6 +129,13 @@
 #   endif /* HAVE__VSNPRINTF */
 #  endif /* HAVE__VSNPRINTF_S */
 
+#  ifndef _SSIZE_T_DEFINED
+#   undef ssize_t
+#   include <BaseTsd.h>
+    typedef _W64 SSIZE_T ssize_t;
+#   define _SSIZE_T_DEFINED
+#  endif /* _SSIZE_T_DEFINED */
+
 # endif /* _MSC_VER */
 
 struct timeval;
@@ -232,6 +244,7 @@ void _ssh_set_error_oom(void *error, const char *function);
     _ssh_set_error_invalid(error, __func__)
 void _ssh_set_error_invalid(void *error, const char *function);
 
+void ssh_reset_error(void *error);
 
 /* server.c */
 #ifdef WITH_SERVER
@@ -257,6 +270,8 @@ int compress_buffer(ssh_session session,ssh_buffer buf);
 int decompress_buffer(ssh_session session,ssh_buffer buf, size_t maxlen);
 
 /* match.c */
+int match_pattern_list(const char *string, const char *pattern,
+    unsigned int len, int dolower);
 int match_hostname(const char *host, const char *pattern, unsigned int len);
 
 /* connector.c */
@@ -371,6 +386,22 @@ void explicit_bzero(void *s, size_t n);
 # endif /* HAVE_FALLTHROUGH_ATTRIBUTE */
 #endif /* FALL_THROUGH */
 
+#ifndef __unused__
+# ifdef HAVE_UNUSED_ATTRIBUTE
+#  define __unused__ __attribute__((unused))
+# else /* HAVE_UNUSED_ATTRIBUTE */
+#  define __unused__
+# endif /* HAVE_UNUSED_ATTRIBUTE */
+#endif /* __unused__ */
+
+#ifndef UNUSED_PARAM
+#define UNUSED_PARAM(param) param __unused__
+#endif /* UNUSED_PARAM */
+
+#ifndef UNUSED_VAR
+#define UNUSED_VAR(var) __unused__ var
+#endif /* UNUSED_VAR */
+
 void ssh_agent_state_free(void *data);
 
 #endif /* _LIBSSH_PRIV_H */

include/libssh/session.h

@@ -20,6 +20,8 @@
 
 #ifndef SESSION_H_
 #define SESSION_H_
+#include <stdbool.h>
+
 #include "libssh/priv.h"
 #include "libssh/kex.h"
 #include "libssh/packet.h"
@@ -27,6 +29,7 @@
 #include "libssh/auth.h"
 #include "libssh/channels.h"
 #include "libssh/poll.h"
+#include "libssh/config.h"
 
 /* These are the different states a SSH session can be into its life */
 enum ssh_session_state_e {
@@ -86,6 +89,12 @@ enum ssh_pending_call_e {
 #define SSH_OPT_FLAG_KBDINT_AUTH 0x4
 #define SSH_OPT_FLAG_GSSAPI_AUTH 0x8
 
+/* extensions flags */
+/* server-sig-algs extension */
+#define SSH_EXT_SIG_RSA_SHA256  0x01
+#define SSH_EXT_SIG_RSA_SHA512  0x02
+#define SSH_EXT_ALL             SSH_EXT_SIG_RSA_SHA256 | SSH_EXT_SIG_RSA_SHA512
+
 /* members that are common to ssh_session and ssh_bind */
 struct ssh_common_struct {
     struct error_struct error;
@@ -114,6 +123,9 @@ struct ssh_session_struct {
     /* session flags (SSH_SESSION_FLAG_*) */
     int flags;
 
+    /* Extensions negotiated using RFC 8308 */
+    uint32_t extensions;
+
     ssh_string banner; /* that's the issue banner from
                        the server */
     char *discon_msg; /* disconnect message from
@@ -128,11 +140,16 @@ struct ssh_session_struct {
     enum ssh_session_state_e session_state;
     int packet_state;
     enum ssh_dh_state_e dh_handshake_state;
-    enum ssh_auth_service_state_e auth_service_state;
-    enum ssh_auth_state_e auth_state;
     enum ssh_channel_request_state_e global_req_state;
     struct ssh_agent_state_struct *agent_state;
-    struct ssh_auth_auto_state_struct *auth_auto_state;
+
+    struct {
+        struct ssh_auth_auto_state_struct *auto_state;
+        enum ssh_auth_service_state_e service_state;
+        enum ssh_auth_state_e state;
+        uint32_t supported_methods;
+        uint32_t current_method;
+    } auth;
 
     /*
      * RFC 4253, 7.1: if the first_kex_packet_follows flag was set in
@@ -150,8 +167,6 @@ struct ssh_session_struct {
 
     struct ssh_list *channels; /* linked list of channels */
     int maxchannel;
-    int exec_channel_opened; /* version 1 only. more
-                                info in channels1.c */
     ssh_agent agent; /* ssh agent */
 
 /* keyb interactive data */
@@ -167,8 +182,8 @@ struct ssh_session_struct {
         /* The type of host key wanted by client */
         enum ssh_keytypes_e hostkey;
     } srv;
+
     /* auths accepted by server */
-    int auth_methods;
     struct ssh_list *ssh_message_list; /* list of delayed SSH messages */
     int (*ssh_message_callback)( struct ssh_session_struct *session, ssh_message msg, void *userdata);
     void *ssh_message_callback_data;
@@ -191,6 +206,7 @@ struct ssh_session_struct {
         char *knownhosts;
         char *global_knownhosts;
         char *wanted_methods[10];
+        char *pubkey_accepted_types;
         char *ProxyCommand;
         char *custombanner;
         unsigned long timeout; /* seconds */
@@ -204,6 +220,8 @@ struct ssh_session_struct {
         int gss_delegate_creds;
         int flags;
         int nodelay;
+        bool config_processed;
+        uint8_t options_seen[SOC_MAX];
     } opts;
     /* counters */
     ssh_counter socket_counter;
@@ -217,8 +235,10 @@ struct ssh_session_struct {
  */
 typedef int (*ssh_termination_function)(void *user);
 int ssh_handle_packets(ssh_session session, int timeout);
-int ssh_handle_packets_termination(ssh_session session, int timeout,
+int ssh_handle_packets_termination(ssh_session session,
-    ssh_termination_function fct, void *user);
+                                   long timeout,
+                                   ssh_termination_function fct,
+                                   void *user);
 void ssh_socket_exception_callback(int code, int errno_code, void *user);
 
 #endif /* SESSION_H_ */

include/libssh/sftp.h

@@ -53,9 +53,14 @@ extern "C" {
   typedef uint32_t gid_t;
 #endif /* gid_t */
 #ifdef _MSC_VER
-#ifndef ssize_t
+
-  typedef _W64 SSIZE_T ssize_t;
+# ifndef _SSIZE_T_DEFINED
-#endif /* ssize_t */
+#  undef ssize_t
+#  include <BaseTsd.h>
+   typedef _W64 SSIZE_T ssize_t;
+#  define _SSIZE_T_DEFINED
+# endif /* _SSIZE_T_DEFINED */
+
 #endif /* _MSC_VER */
 #endif /* _WIN32 */
 
@@ -84,6 +89,7 @@ struct sftp_session_struct {
     int errnum;
     void **handles;
     sftp_ext ext;
+    sftp_packet read_packet;
 };
 
 struct sftp_packet_struct {
@@ -134,6 +140,7 @@ struct sftp_client_message_struct {
     ssh_string data; /* can be newpath of rename() */
     ssh_buffer complete_message; /* complete message in case of retransmission*/
     char *str_data; /* cstring version of data */
+    char *submessage; /* for extended messages */
 };
 
 struct sftp_request_queue_struct {
@@ -862,6 +869,7 @@ LIBSSH_API const char *sftp_client_message_get_filename(sftp_client_message msg)
 LIBSSH_API void sftp_client_message_set_filename(sftp_client_message msg, const char *newname);
 LIBSSH_API const char *sftp_client_message_get_data(sftp_client_message msg);
 LIBSSH_API uint32_t sftp_client_message_get_flags(sftp_client_message msg);
+LIBSSH_API const char *sftp_client_message_get_submessage(sftp_client_message msg);
 LIBSSH_API int sftp_send_client_message(sftp_session sftp, sftp_client_message msg);
 LIBSSH_API int sftp_reply_name(sftp_client_message msg, const char *name,
     sftp_attributes attr);
@@ -1011,6 +1019,7 @@ LIBSSH_API void sftp_handle_remove(sftp_session sftp, void *handle);
 #define SFTP_RENAME SSH_FXP_RENAME
 #define SFTP_READLINK SSH_FXP_READLINK
 #define SFTP_SYMLINK SSH_FXP_SYMLINK
+#define SFTP_EXTENDED SSH_FXP_EXTENDED
 
 /* openssh flags */
 #define SSH_FXE_STATVFS_ST_RDONLY 0x1 /* read-only */

include/libssh/socket.h

@@ -34,7 +34,7 @@ ssh_socket ssh_socket_new(ssh_session session);
 void ssh_socket_reset(ssh_socket s);
 void ssh_socket_free(ssh_socket s);
 void ssh_socket_set_fd(ssh_socket s, socket_t fd);
-socket_t ssh_socket_get_fd_in(ssh_socket s);
+socket_t ssh_socket_get_fd(ssh_socket s);
 #ifndef _WIN32
 int ssh_socket_unix(ssh_socket s, const char *path);
 void ssh_execute_command(const char *command, socket_t in, socket_t out);
@@ -61,8 +61,7 @@ int ssh_socket_set_blocking(socket_t fd);
 
 void ssh_socket_set_callbacks(ssh_socket s, ssh_socket_callbacks callbacks);
 int ssh_socket_pollcallback(struct ssh_poll_handle_struct *p, socket_t fd, int revents, void *v_s);
-struct ssh_poll_handle_struct * ssh_socket_get_poll_handle_in(ssh_socket s);
+struct ssh_poll_handle_struct * ssh_socket_get_poll_handle(ssh_socket s);
-struct ssh_poll_handle_struct * ssh_socket_get_poll_handle_out(ssh_socket s);
 
 int ssh_socket_connect(ssh_socket s, const char *host, int port, const char *bind_addr);
 

include/libssh/ssh2.h

@@ -7,6 +7,7 @@
 #define SSH2_MSG_DEBUG	4
 #define SSH2_MSG_SERVICE_REQUEST	5
 #define SSH2_MSG_SERVICE_ACCEPT 6
+#define SSH2_MSG_EXT_INFO 7
 
 #define SSH2_MSG_KEXINIT	 20
 #define SSH2_MSG_NEWKEYS 21

include/libssh/threads.h

@@ -29,7 +29,7 @@
 #include <pthread.h>
 #define SSH_MUTEX pthread_mutex_t
 
-#if defined _GNU_SOURCE
+#if defined(PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP)
 #define SSH_MUTEX_STATIC_INIT PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
 #else
 #define SSH_MUTEX_STATIC_INIT PTHREAD_MUTEX_INITIALIZER

include/libssh/wrapper.h

@@ -27,6 +27,13 @@
 #include "libssh/libgcrypt.h"
 #include "libssh/libmbedcrypto.h"
 
+enum ssh_digest_e {
+    SSH_DIGEST_AUTO=0,
+    SSH_DIGEST_SHA1=1,
+    SSH_DIGEST_SHA256,
+    SSH_DIGEST_SHA512
+};
+
 enum ssh_mac_e {
   SSH_MAC_SHA1=1,
   SSH_MAC_SHA256,
@@ -40,7 +47,8 @@ enum ssh_hmac_e {
   SSH_HMAC_SHA384,
   SSH_HMAC_SHA512,
   SSH_HMAC_MD5,
-  SSH_HMAC_AEAD_POLY1305
+  SSH_HMAC_AEAD_POLY1305,
+  SSH_HMAC_AEAD_GCM
 };
 
 enum ssh_des_e {

libssh-build-tree-settings.cmake.in

@@ -1 +0,0 @@
-set(LIBSSH_INLUDE_DIR @PROJECT_SOURCE_DIR@/include)

libssh-config-version.cmake.in

@@ -1,11 +0,0 @@
-set(PACKAGE_VERSION @APPLICATION_VERSION@)
-
-# Check whether the requested PACKAGE_FIND_VERSION is compatible
-if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}")
-    set(PACKAGE_VERSION_COMPATIBLE FALSE)
-else()
-    set(PACKAGE_VERSION_COMPATIBLE TRUE)
-    if ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}")
-        set(PACKAGE_VERSION_EXACT TRUE)
-    endif()
-endif()

libssh-config.cmake.in

@@ -1,15 +1,15 @@
-get_filename_component(LIBSSH_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+@PACKAGE_INIT@
 
-if (EXISTS "${LIBSSH_CMAKE_DIR}/CMakeCache.txt")
+if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/CMakeCache.txt")
-    # In build tree
+    # In tree build
-    include(${LIBSSH_CMAKE_DIR}/libssh-build-tree-settings.cmake)
+    set_and_check(LIBSSH_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}/include")
+    set_and_check(LIBSSH_LIBRARIES "${CMAKE_CURRENT_LIST_DIR}/lib/@LIBSSH_LIBRARY_NAME@")
 else()
-    set(LIBSSH_INCLUDE_DIR @INCLUDE_INSTALL_DIR@)
+    set_and_check(LIBSSH_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
+    set_and_check(LIBSSH_LIBRARIES "@PACKAGE_LIB_INSTALL_DIR@/@LIBSSH_LIBRARY_NAME@")
 endif()
 
-set(LIBSSH_LIBRARY @LIB_INSTALL_DIR@/@LIBSSH_LIBRARY_NAME@)
+# For backward compatibility
-set(LIBSSH_LIBRARIES @LIB_INSTALL_DIR@/@LIBSSH_LIBRARY_NAME@)
+set(LIBSSH_LIBRARY ${LIBSSH_LIBRARIES})
 
-set(LIBSSH_THREADS_LIBRARY @LIB_INSTALL_DIR@/@LIBSSH_THREADS_LIBRARY_NAME@)
+mark_as_advanced(LIBSSH_LIBRARIES LIBSSH_LIBRARY LIBSSH_INCLUDE_DIR)
-
-mark_as_advanced(LIBSSH_LIBRARIES LIBSSH_INCLUDE_DIR)

libssh.pc.cmake

@@ -1,6 +1,6 @@
-Name: ${APPLICATION_NAME}
+Name: ${PROJECT_NAME}
 Description: The SSH Library
-Version: ${APPLICATION_VERSION}
+Version: ${PROJECT_VERSION}
 Libs: -L${LIB_INSTALL_DIR} -lssh
 Cflags: -I${INCLUDE_INSTALL_DIR}
 

libssh_threads.pc.cmake

@@ -1,6 +0,0 @@
-Name: ${APPLICATION_NAME}_threads
-Description: The SSH Library Thread Extension
-Version: ${APPLICATION_VERSION}
-Libs: -L${LIB_INSTALL_DIR} -lssh_threads
-Cflags: -I${INCLUDE_INSTALL_DIR}
-

src/ABI/current

@@ -1 +1 @@
-4.5.0
+4.7.2

src/ABI/libssh-4.6.0.symbols

@@ -0,0 +1,412 @@
+_ssh_log
+buffer_free
+buffer_get
+buffer_get_len
+buffer_new
+channel_accept_x11
+channel_change_pty_size
+channel_close
+channel_forward_accept
+channel_forward_cancel
+channel_forward_listen
+channel_free
+channel_get_exit_status
+channel_get_session
+channel_is_closed
+channel_is_eof
+channel_is_open
+channel_new
+channel_open_forward
+channel_open_session
+channel_poll
+channel_read
+channel_read_buffer
+channel_read_nonblocking
+channel_request_env
+channel_request_exec
+channel_request_pty
+channel_request_pty_size
+channel_request_send_signal
+channel_request_sftp
+channel_request_shell
+channel_request_subsystem
+channel_request_x11
+channel_select
+channel_send_eof
+channel_set_blocking
+channel_write
+channel_write_stderr
+privatekey_free
+privatekey_from_file
+publickey_free
+publickey_from_file
+publickey_from_privatekey
+publickey_to_string
+sftp_async_read
+sftp_async_read_begin
+sftp_attributes_free
+sftp_canonicalize_path
+sftp_chmod
+sftp_chown
+sftp_client_message_free
+sftp_client_message_get_data
+sftp_client_message_get_filename
+sftp_client_message_get_flags
+sftp_client_message_get_type
+sftp_client_message_set_filename
+sftp_close
+sftp_closedir
+sftp_dir_eof
+sftp_extension_supported
+sftp_extensions_get_count
+sftp_extensions_get_data
+sftp_extensions_get_name
+sftp_file_set_blocking
+sftp_file_set_nonblocking
+sftp_free
+sftp_fstat
+sftp_fstatvfs
+sftp_fsync
+sftp_get_client_message
+sftp_get_error
+sftp_handle
+sftp_handle_alloc
+sftp_handle_remove
+sftp_init
+sftp_lstat
+sftp_mkdir
+sftp_new
+sftp_new_channel
+sftp_open
+sftp_opendir
+sftp_read
+sftp_readdir
+sftp_readlink
+sftp_rename
+sftp_reply_attr
+sftp_reply_data
+sftp_reply_handle
+sftp_reply_name
+sftp_reply_names
+sftp_reply_names_add
+sftp_reply_status
+sftp_rewind
+sftp_rmdir
+sftp_seek
+sftp_seek64
+sftp_send_client_message
+sftp_server_init
+sftp_server_new
+sftp_server_version
+sftp_setstat
+sftp_stat
+sftp_statvfs
+sftp_statvfs_free
+sftp_symlink
+sftp_tell
+sftp_tell64
+sftp_unlink
+sftp_utimes
+sftp_write
+ssh_accept
+ssh_add_channel_callbacks
+ssh_auth_list
+ssh_basename
+ssh_bind_accept
+ssh_bind_accept_fd
+ssh_bind_fd_toaccept
+ssh_bind_free
+ssh_bind_get_fd
+ssh_bind_listen
+ssh_bind_new
+ssh_bind_options_set
+ssh_bind_set_blocking
+ssh_bind_set_callbacks
+ssh_bind_set_fd
+ssh_blocking_flush
+ssh_buffer_add_data
+ssh_buffer_free
+ssh_buffer_get
+ssh_buffer_get_data
+ssh_buffer_get_len
+ssh_buffer_new
+ssh_buffer_reinit
+ssh_channel_accept_forward
+ssh_channel_accept_x11
+ssh_channel_cancel_forward
+ssh_channel_change_pty_size
+ssh_channel_close
+ssh_channel_free
+ssh_channel_get_exit_status
+ssh_channel_get_session
+ssh_channel_is_closed
+ssh_channel_is_eof
+ssh_channel_is_open
+ssh_channel_listen_forward
+ssh_channel_new
+ssh_channel_open_auth_agent
+ssh_channel_open_forward
+ssh_channel_open_reverse_forward
+ssh_channel_open_session
+ssh_channel_open_x11
+ssh_channel_poll
+ssh_channel_poll_timeout
+ssh_channel_read
+ssh_channel_read_nonblocking
+ssh_channel_read_timeout
+ssh_channel_request_auth_agent
+ssh_channel_request_env
+ssh_channel_request_exec
+ssh_channel_request_pty
+ssh_channel_request_pty_size
+ssh_channel_request_send_break
+ssh_channel_request_send_exit_signal
+ssh_channel_request_send_exit_status
+ssh_channel_request_send_signal
+ssh_channel_request_sftp
+ssh_channel_request_shell
+ssh_channel_request_subsystem
+ssh_channel_request_x11
+ssh_channel_select
+ssh_channel_send_eof
+ssh_channel_set_blocking
+ssh_channel_set_counter
+ssh_channel_window_size
+ssh_channel_write
+ssh_channel_write_stderr
+ssh_clean_pubkey_hash
+ssh_connect
+ssh_connector_free
+ssh_connector_new
+ssh_connector_set_in_channel
+ssh_connector_set_in_fd
+ssh_connector_set_out_channel
+ssh_connector_set_out_fd
+ssh_copyright
+ssh_dirname
+ssh_disconnect
+ssh_dump_knownhost
+ssh_event_add_connector
+ssh_event_add_fd
+ssh_event_add_session
+ssh_event_dopoll
+ssh_event_free
+ssh_event_new
+ssh_event_remove_connector
+ssh_event_remove_fd
+ssh_event_remove_session
+ssh_execute_message_callbacks
+ssh_finalize
+ssh_forward_accept
+ssh_forward_cancel
+ssh_forward_listen
+ssh_free
+ssh_get_cipher_in
+ssh_get_cipher_out
+ssh_get_clientbanner
+ssh_get_disconnect_message
+ssh_get_error
+ssh_get_error_code
+ssh_get_fd
+ssh_get_hexa
+ssh_get_hmac_in
+ssh_get_hmac_out
+ssh_get_issue_banner
+ssh_get_kex_algo
+ssh_get_log_callback
+ssh_get_log_level
+ssh_get_log_userdata
+ssh_get_openssh_version
+ssh_get_poll_flags
+ssh_get_pubkey
+ssh_get_pubkey_hash
+ssh_get_publickey
+ssh_get_publickey_hash
+ssh_get_random
+ssh_get_server_publickey
+ssh_get_serverbanner
+ssh_get_status
+ssh_get_version
+ssh_getpass
+ssh_gssapi_get_creds
+ssh_gssapi_set_creds
+ssh_handle_key_exchange
+ssh_init
+ssh_is_blocking
+ssh_is_connected
+ssh_is_server_known
+ssh_key_cmp
+ssh_key_free
+ssh_key_is_private
+ssh_key_is_public
+ssh_key_new
+ssh_key_type
+ssh_key_type_from_name
+ssh_key_type_to_char
+ssh_known_hosts_parse_line
+ssh_knownhosts_entry_free
+ssh_log
+ssh_message_auth_interactive_request
+ssh_message_auth_kbdint_is_response
+ssh_message_auth_password
+ssh_message_auth_pubkey
+ssh_message_auth_publickey
+ssh_message_auth_publickey_state
+ssh_message_auth_reply_pk_ok
+ssh_message_auth_reply_pk_ok_simple
+ssh_message_auth_reply_success
+ssh_message_auth_set_methods
+ssh_message_auth_user
+ssh_message_channel_request_channel
+ssh_message_channel_request_command
+ssh_message_channel_request_env_name
+ssh_message_channel_request_env_value
+ssh_message_channel_request_open_destination
+ssh_message_channel_request_open_destination_port
+ssh_message_channel_request_open_originator
+ssh_message_channel_request_open_originator_port
+ssh_message_channel_request_open_reply_accept
+ssh_message_channel_request_pty_height
+ssh_message_channel_request_pty_pxheight
+ssh_message_channel_request_pty_pxwidth
+ssh_message_channel_request_pty_term
+ssh_message_channel_request_pty_width
+ssh_message_channel_request_reply_success
+ssh_message_channel_request_subsystem
+ssh_message_channel_request_x11_auth_cookie
+ssh_message_channel_request_x11_auth_protocol
+ssh_message_channel_request_x11_screen_number
+ssh_message_channel_request_x11_single_connection
+ssh_message_free
+ssh_message_get
+ssh_message_global_request_address
+ssh_message_global_request_port
+ssh_message_global_request_reply_success
+ssh_message_reply_default
+ssh_message_retrieve
+ssh_message_service_reply_success
+ssh_message_service_service
+ssh_message_subtype
+ssh_message_type
+ssh_mkdir
+ssh_new
+ssh_options_copy
+ssh_options_get
+ssh_options_get_port
+ssh_options_getopt
+ssh_options_parse_config
+ssh_options_set
+ssh_pcap_file_close
+ssh_pcap_file_free
+ssh_pcap_file_new
+ssh_pcap_file_open
+ssh_pki_copy_cert_to_privkey
+ssh_pki_export_privkey_file
+ssh_pki_export_privkey_to_pubkey
+ssh_pki_export_pubkey_base64
+ssh_pki_export_pubkey_file
+ssh_pki_generate
+ssh_pki_import_cert_base64
+ssh_pki_import_cert_file
+ssh_pki_import_privkey_base64
+ssh_pki_import_privkey_file
+ssh_pki_import_pubkey_base64
+ssh_pki_import_pubkey_file
+ssh_pki_key_ecdsa_name
+ssh_print_hash
+ssh_print_hexa
+ssh_privatekey_type
+ssh_publickey_to_file
+ssh_remove_channel_callbacks
+ssh_scp_accept_request
+ssh_scp_close
+ssh_scp_deny_request
+ssh_scp_free
+ssh_scp_init
+ssh_scp_leave_directory
+ssh_scp_new
+ssh_scp_pull_request
+ssh_scp_push_directory
+ssh_scp_push_file
+ssh_scp_push_file64
+ssh_scp_read
+ssh_scp_request_get_filename
+ssh_scp_request_get_permissions
+ssh_scp_request_get_size
+ssh_scp_request_get_size64
+ssh_scp_request_get_warning
+ssh_scp_write
+ssh_select
+ssh_send_debug
+ssh_send_ignore
+ssh_send_keepalive
+ssh_server_init_kex
+ssh_service_request
+ssh_session_export_known_hosts_entry
+ssh_session_has_known_hosts_entry
+ssh_session_is_known_server
+ssh_session_update_known_hosts
+ssh_set_agent_channel
+ssh_set_agent_socket
+ssh_set_auth_methods
+ssh_set_blocking
+ssh_set_callbacks
+ssh_set_channel_callbacks
+ssh_set_counters
+ssh_set_fd_except
+ssh_set_fd_toread
+ssh_set_fd_towrite
+ssh_set_log_callback
+ssh_set_log_level
+ssh_set_log_userdata
+ssh_set_message_callback
+ssh_set_pcap_file
+ssh_set_server_callbacks
+ssh_silent_disconnect
+ssh_string_burn
+ssh_string_copy
+ssh_string_data
+ssh_string_fill
+ssh_string_free
+ssh_string_free_char
+ssh_string_from_char
+ssh_string_get_char
+ssh_string_len
+ssh_string_new
+ssh_string_to_char
+ssh_threads_get_noop
+ssh_threads_get_pthread
+ssh_threads_set_callbacks
+ssh_try_publickey_from_file
+ssh_userauth_agent
+ssh_userauth_agent_pubkey
+ssh_userauth_autopubkey
+ssh_userauth_gssapi
+ssh_userauth_kbdint
+ssh_userauth_kbdint_getanswer
+ssh_userauth_kbdint_getinstruction
+ssh_userauth_kbdint_getname
+ssh_userauth_kbdint_getnanswers
+ssh_userauth_kbdint_getnprompts
+ssh_userauth_kbdint_getprompt
+ssh_userauth_kbdint_setanswer
+ssh_userauth_list
+ssh_userauth_none
+ssh_userauth_offer_pubkey
+ssh_userauth_password
+ssh_userauth_privatekey_file
+ssh_userauth_pubkey
+ssh_userauth_publickey
+ssh_userauth_publickey_auto
+ssh_userauth_try_publickey
+ssh_version
+ssh_write_knownhost
+string_burn
+string_copy
+string_data
+string_fill
+string_free
+string_from_char
+string_len
+string_new
+string_to_char

src/ABI/libssh-4.7.0.symbols

@@ -0,0 +1,415 @@
+_ssh_log
+buffer_free
+buffer_get
+buffer_get_len
+buffer_new
+channel_accept_x11
+channel_change_pty_size
+channel_close
+channel_forward_accept
+channel_forward_cancel
+channel_forward_listen
+channel_free
+channel_get_exit_status
+channel_get_session
+channel_is_closed
+channel_is_eof
+channel_is_open
+channel_new
+channel_open_forward
+channel_open_session
+channel_poll
+channel_read
+channel_read_buffer
+channel_read_nonblocking
+channel_request_env
+channel_request_exec
+channel_request_pty
+channel_request_pty_size
+channel_request_send_signal
+channel_request_sftp
+channel_request_shell
+channel_request_subsystem
+channel_request_x11
+channel_select
+channel_send_eof
+channel_set_blocking
+channel_write
+channel_write_stderr
+privatekey_free
+privatekey_from_file
+publickey_free
+publickey_from_file
+publickey_from_privatekey
+publickey_to_string
+sftp_async_read
+sftp_async_read_begin
+sftp_attributes_free
+sftp_canonicalize_path
+sftp_chmod
+sftp_chown
+sftp_client_message_free
+sftp_client_message_get_data
+sftp_client_message_get_filename
+sftp_client_message_get_flags
+sftp_client_message_get_submessage
+sftp_client_message_get_type
+sftp_client_message_set_filename
+sftp_close
+sftp_closedir
+sftp_dir_eof
+sftp_extension_supported
+sftp_extensions_get_count
+sftp_extensions_get_data
+sftp_extensions_get_name
+sftp_file_set_blocking
+sftp_file_set_nonblocking
+sftp_free
+sftp_fstat
+sftp_fstatvfs
+sftp_fsync
+sftp_get_client_message
+sftp_get_error
+sftp_handle
+sftp_handle_alloc
+sftp_handle_remove
+sftp_init
+sftp_lstat
+sftp_mkdir
+sftp_new
+sftp_new_channel
+sftp_open
+sftp_opendir
+sftp_read
+sftp_readdir
+sftp_readlink
+sftp_rename
+sftp_reply_attr
+sftp_reply_data
+sftp_reply_handle
+sftp_reply_name
+sftp_reply_names
+sftp_reply_names_add
+sftp_reply_status
+sftp_rewind
+sftp_rmdir
+sftp_seek
+sftp_seek64
+sftp_send_client_message
+sftp_server_init
+sftp_server_new
+sftp_server_version
+sftp_setstat
+sftp_stat
+sftp_statvfs
+sftp_statvfs_free
+sftp_symlink
+sftp_tell
+sftp_tell64
+sftp_unlink
+sftp_utimes
+sftp_write
+ssh_accept
+ssh_add_channel_callbacks
+ssh_auth_list
+ssh_basename
+ssh_bind_accept
+ssh_bind_accept_fd
+ssh_bind_fd_toaccept
+ssh_bind_free
+ssh_bind_get_fd
+ssh_bind_listen
+ssh_bind_new
+ssh_bind_options_set
+ssh_bind_set_blocking
+ssh_bind_set_callbacks
+ssh_bind_set_fd
+ssh_blocking_flush
+ssh_buffer_add_data
+ssh_buffer_free
+ssh_buffer_get
+ssh_buffer_get_data
+ssh_buffer_get_len
+ssh_buffer_new
+ssh_buffer_reinit
+ssh_channel_accept_forward
+ssh_channel_accept_x11
+ssh_channel_cancel_forward
+ssh_channel_change_pty_size
+ssh_channel_close
+ssh_channel_free
+ssh_channel_get_exit_status
+ssh_channel_get_session
+ssh_channel_is_closed
+ssh_channel_is_eof
+ssh_channel_is_open
+ssh_channel_listen_forward
+ssh_channel_new
+ssh_channel_open_auth_agent
+ssh_channel_open_forward
+ssh_channel_open_reverse_forward
+ssh_channel_open_session
+ssh_channel_open_x11
+ssh_channel_poll
+ssh_channel_poll_timeout
+ssh_channel_read
+ssh_channel_read_nonblocking
+ssh_channel_read_timeout
+ssh_channel_request_auth_agent
+ssh_channel_request_env
+ssh_channel_request_exec
+ssh_channel_request_pty
+ssh_channel_request_pty_size
+ssh_channel_request_send_break
+ssh_channel_request_send_exit_signal
+ssh_channel_request_send_exit_status
+ssh_channel_request_send_signal
+ssh_channel_request_sftp
+ssh_channel_request_shell
+ssh_channel_request_subsystem
+ssh_channel_request_x11
+ssh_channel_select
+ssh_channel_send_eof
+ssh_channel_set_blocking
+ssh_channel_set_counter
+ssh_channel_window_size
+ssh_channel_write
+ssh_channel_write_stderr
+ssh_clean_pubkey_hash
+ssh_connect
+ssh_connector_free
+ssh_connector_new
+ssh_connector_set_in_channel
+ssh_connector_set_in_fd
+ssh_connector_set_out_channel
+ssh_connector_set_out_fd
+ssh_copyright
+ssh_dirname
+ssh_disconnect
+ssh_dump_knownhost
+ssh_event_add_connector
+ssh_event_add_fd
+ssh_event_add_session
+ssh_event_dopoll
+ssh_event_free
+ssh_event_new
+ssh_event_remove_connector
+ssh_event_remove_fd
+ssh_event_remove_session
+ssh_execute_message_callbacks
+ssh_finalize
+ssh_forward_accept
+ssh_forward_cancel
+ssh_forward_listen
+ssh_free
+ssh_get_cipher_in
+ssh_get_cipher_out
+ssh_get_clientbanner
+ssh_get_disconnect_message
+ssh_get_error
+ssh_get_error_code
+ssh_get_fd
+ssh_get_fingerprint_hash
+ssh_get_hexa
+ssh_get_hmac_in
+ssh_get_hmac_out
+ssh_get_issue_banner
+ssh_get_kex_algo
+ssh_get_log_callback
+ssh_get_log_level
+ssh_get_log_userdata
+ssh_get_openssh_version
+ssh_get_poll_flags
+ssh_get_pubkey
+ssh_get_pubkey_hash
+ssh_get_publickey
+ssh_get_publickey_hash
+ssh_get_random
+ssh_get_server_publickey
+ssh_get_serverbanner
+ssh_get_status
+ssh_get_version
+ssh_getpass
+ssh_gssapi_get_creds
+ssh_gssapi_set_creds
+ssh_handle_key_exchange
+ssh_init
+ssh_is_blocking
+ssh_is_connected
+ssh_is_server_known
+ssh_key_cmp
+ssh_key_free
+ssh_key_is_private
+ssh_key_is_public
+ssh_key_new
+ssh_key_type
+ssh_key_type_from_name
+ssh_key_type_to_char
+ssh_known_hosts_parse_line
+ssh_knownhosts_entry_free
+ssh_log
+ssh_message_auth_interactive_request
+ssh_message_auth_kbdint_is_response
+ssh_message_auth_password
+ssh_message_auth_pubkey
+ssh_message_auth_publickey
+ssh_message_auth_publickey_state
+ssh_message_auth_reply_pk_ok
+ssh_message_auth_reply_pk_ok_simple
+ssh_message_auth_reply_success
+ssh_message_auth_set_methods
+ssh_message_auth_user
+ssh_message_channel_request_channel
+ssh_message_channel_request_command
+ssh_message_channel_request_env_name
+ssh_message_channel_request_env_value
+ssh_message_channel_request_open_destination
+ssh_message_channel_request_open_destination_port
+ssh_message_channel_request_open_originator
+ssh_message_channel_request_open_originator_port
+ssh_message_channel_request_open_reply_accept
+ssh_message_channel_request_pty_height
+ssh_message_channel_request_pty_pxheight
+ssh_message_channel_request_pty_pxwidth
+ssh_message_channel_request_pty_term
+ssh_message_channel_request_pty_width
+ssh_message_channel_request_reply_success
+ssh_message_channel_request_subsystem
+ssh_message_channel_request_x11_auth_cookie
+ssh_message_channel_request_x11_auth_protocol
+ssh_message_channel_request_x11_screen_number
+ssh_message_channel_request_x11_single_connection
+ssh_message_free
+ssh_message_get
+ssh_message_global_request_address
+ssh_message_global_request_port
+ssh_message_global_request_reply_success
+ssh_message_reply_default
+ssh_message_retrieve
+ssh_message_service_reply_success
+ssh_message_service_service
+ssh_message_subtype
+ssh_message_type
+ssh_mkdir
+ssh_new
+ssh_options_copy
+ssh_options_get
+ssh_options_get_port
+ssh_options_getopt
+ssh_options_parse_config
+ssh_options_set
+ssh_pcap_file_close
+ssh_pcap_file_free
+ssh_pcap_file_new
+ssh_pcap_file_open
+ssh_pki_copy_cert_to_privkey
+ssh_pki_export_privkey_base64
+ssh_pki_export_privkey_file
+ssh_pki_export_privkey_to_pubkey
+ssh_pki_export_pubkey_base64
+ssh_pki_export_pubkey_file
+ssh_pki_generate
+ssh_pki_import_cert_base64
+ssh_pki_import_cert_file
+ssh_pki_import_privkey_base64
+ssh_pki_import_privkey_file
+ssh_pki_import_pubkey_base64
+ssh_pki_import_pubkey_file
+ssh_pki_key_ecdsa_name
+ssh_print_hash
+ssh_print_hexa
+ssh_privatekey_type
+ssh_publickey_to_file
+ssh_remove_channel_callbacks
+ssh_scp_accept_request
+ssh_scp_close
+ssh_scp_deny_request
+ssh_scp_free
+ssh_scp_init
+ssh_scp_leave_directory
+ssh_scp_new
+ssh_scp_pull_request
+ssh_scp_push_directory
+ssh_scp_push_file
+ssh_scp_push_file64
+ssh_scp_read
+ssh_scp_request_get_filename
+ssh_scp_request_get_permissions
+ssh_scp_request_get_size
+ssh_scp_request_get_size64
+ssh_scp_request_get_warning
+ssh_scp_write
+ssh_select
+ssh_send_debug
+ssh_send_ignore
+ssh_send_keepalive
+ssh_server_init_kex
+ssh_service_request
+ssh_session_export_known_hosts_entry
+ssh_session_has_known_hosts_entry
+ssh_session_is_known_server
+ssh_session_update_known_hosts
+ssh_set_agent_channel
+ssh_set_agent_socket
+ssh_set_auth_methods
+ssh_set_blocking
+ssh_set_callbacks
+ssh_set_channel_callbacks
+ssh_set_counters
+ssh_set_fd_except
+ssh_set_fd_toread
+ssh_set_fd_towrite
+ssh_set_log_callback
+ssh_set_log_level
+ssh_set_log_userdata
+ssh_set_message_callback
+ssh_set_pcap_file
+ssh_set_server_callbacks
+ssh_silent_disconnect
+ssh_string_burn
+ssh_string_copy
+ssh_string_data
+ssh_string_fill
+ssh_string_free
+ssh_string_free_char
+ssh_string_from_char
+ssh_string_get_char
+ssh_string_len
+ssh_string_new
+ssh_string_to_char
+ssh_threads_get_noop
+ssh_threads_get_pthread
+ssh_threads_set_callbacks
+ssh_try_publickey_from_file
+ssh_userauth_agent
+ssh_userauth_agent_pubkey
+ssh_userauth_autopubkey
+ssh_userauth_gssapi
+ssh_userauth_kbdint
+ssh_userauth_kbdint_getanswer
+ssh_userauth_kbdint_getinstruction
+ssh_userauth_kbdint_getname
+ssh_userauth_kbdint_getnanswers
+ssh_userauth_kbdint_getnprompts
+ssh_userauth_kbdint_getprompt
+ssh_userauth_kbdint_setanswer
+ssh_userauth_list
+ssh_userauth_none
+ssh_userauth_offer_pubkey
+ssh_userauth_password
+ssh_userauth_privatekey_file
+ssh_userauth_pubkey
+ssh_userauth_publickey
+ssh_userauth_publickey_auto
+ssh_userauth_try_publickey
+ssh_version
+ssh_write_knownhost
+string_burn
+string_copy
+string_data
+string_fill
+string_free
+string_from_char
+string_len
+string_new
+string_to_char

src/ABI/libssh-4.7.1.symbols

@@ -0,0 +1,415 @@
+_ssh_log
+buffer_free
+buffer_get
+buffer_get_len
+buffer_new
+channel_accept_x11
+channel_change_pty_size
+channel_close
+channel_forward_accept
+channel_forward_cancel
+channel_forward_listen
+channel_free
+channel_get_exit_status
+channel_get_session
+channel_is_closed
+channel_is_eof
+channel_is_open
+channel_new
+channel_open_forward
+channel_open_session
+channel_poll
+channel_read
+channel_read_buffer
+channel_read_nonblocking
+channel_request_env
+channel_request_exec
+channel_request_pty
+channel_request_pty_size
+channel_request_send_signal
+channel_request_sftp
+channel_request_shell
+channel_request_subsystem
+channel_request_x11
+channel_select
+channel_send_eof
+channel_set_blocking
+channel_write
+channel_write_stderr
+privatekey_free
+privatekey_from_file
+publickey_free
+publickey_from_file
+publickey_from_privatekey
+publickey_to_string
+sftp_async_read
+sftp_async_read_begin
+sftp_attributes_free
+sftp_canonicalize_path
+sftp_chmod
+sftp_chown
+sftp_client_message_free
+sftp_client_message_get_data
+sftp_client_message_get_filename
+sftp_client_message_get_flags
+sftp_client_message_get_submessage
+sftp_client_message_get_type
+sftp_client_message_set_filename
+sftp_close
+sftp_closedir
+sftp_dir_eof
+sftp_extension_supported
+sftp_extensions_get_count
+sftp_extensions_get_data
+sftp_extensions_get_name
+sftp_file_set_blocking
+sftp_file_set_nonblocking
+sftp_free
+sftp_fstat
+sftp_fstatvfs
+sftp_fsync
+sftp_get_client_message
+sftp_get_error
+sftp_handle
+sftp_handle_alloc
+sftp_handle_remove
+sftp_init
+sftp_lstat
+sftp_mkdir
+sftp_new
+sftp_new_channel
+sftp_open
+sftp_opendir
+sftp_read
+sftp_readdir
+sftp_readlink
+sftp_rename
+sftp_reply_attr
+sftp_reply_data
+sftp_reply_handle
+sftp_reply_name
+sftp_reply_names
+sftp_reply_names_add
+sftp_reply_status
+sftp_rewind
+sftp_rmdir
+sftp_seek
+sftp_seek64
+sftp_send_client_message
+sftp_server_init
+sftp_server_new
+sftp_server_version
+sftp_setstat
+sftp_stat
+sftp_statvfs
+sftp_statvfs_free
+sftp_symlink
+sftp_tell
+sftp_tell64
+sftp_unlink
+sftp_utimes
+sftp_write
+ssh_accept
+ssh_add_channel_callbacks
+ssh_auth_list
+ssh_basename
+ssh_bind_accept
+ssh_bind_accept_fd
+ssh_bind_fd_toaccept
+ssh_bind_free
+ssh_bind_get_fd
+ssh_bind_listen
+ssh_bind_new
+ssh_bind_options_set
+ssh_bind_set_blocking
+ssh_bind_set_callbacks
+ssh_bind_set_fd
+ssh_blocking_flush
+ssh_buffer_add_data
+ssh_buffer_free
+ssh_buffer_get
+ssh_buffer_get_data
+ssh_buffer_get_len
+ssh_buffer_new
+ssh_buffer_reinit
+ssh_channel_accept_forward
+ssh_channel_accept_x11
+ssh_channel_cancel_forward
+ssh_channel_change_pty_size
+ssh_channel_close
+ssh_channel_free
+ssh_channel_get_exit_status
+ssh_channel_get_session
+ssh_channel_is_closed
+ssh_channel_is_eof
+ssh_channel_is_open
+ssh_channel_listen_forward
+ssh_channel_new
+ssh_channel_open_auth_agent
+ssh_channel_open_forward
+ssh_channel_open_reverse_forward
+ssh_channel_open_session
+ssh_channel_open_x11
+ssh_channel_poll
+ssh_channel_poll_timeout
+ssh_channel_read
+ssh_channel_read_nonblocking
+ssh_channel_read_timeout
+ssh_channel_request_auth_agent
+ssh_channel_request_env
+ssh_channel_request_exec
+ssh_channel_request_pty
+ssh_channel_request_pty_size
+ssh_channel_request_send_break
+ssh_channel_request_send_exit_signal
+ssh_channel_request_send_exit_status
+ssh_channel_request_send_signal
+ssh_channel_request_sftp
+ssh_channel_request_shell
+ssh_channel_request_subsystem
+ssh_channel_request_x11
+ssh_channel_select
+ssh_channel_send_eof
+ssh_channel_set_blocking
+ssh_channel_set_counter
+ssh_channel_window_size
+ssh_channel_write
+ssh_channel_write_stderr
+ssh_clean_pubkey_hash
+ssh_connect
+ssh_connector_free
+ssh_connector_new
+ssh_connector_set_in_channel
+ssh_connector_set_in_fd
+ssh_connector_set_out_channel
+ssh_connector_set_out_fd
+ssh_copyright
+ssh_dirname
+ssh_disconnect
+ssh_dump_knownhost
+ssh_event_add_connector
+ssh_event_add_fd
+ssh_event_add_session
+ssh_event_dopoll
+ssh_event_free
+ssh_event_new
+ssh_event_remove_connector
+ssh_event_remove_fd
+ssh_event_remove_session
+ssh_execute_message_callbacks
+ssh_finalize
+ssh_forward_accept
+ssh_forward_cancel
+ssh_forward_listen
+ssh_free
+ssh_get_cipher_in
+ssh_get_cipher_out
+ssh_get_clientbanner
+ssh_get_disconnect_message
+ssh_get_error
+ssh_get_error_code
+ssh_get_fd
+ssh_get_fingerprint_hash
+ssh_get_hexa
+ssh_get_hmac_in
+ssh_get_hmac_out
+ssh_get_issue_banner
+ssh_get_kex_algo
+ssh_get_log_callback
+ssh_get_log_level
+ssh_get_log_userdata
+ssh_get_openssh_version
+ssh_get_poll_flags
+ssh_get_pubkey
+ssh_get_pubkey_hash
+ssh_get_publickey
+ssh_get_publickey_hash
+ssh_get_random
+ssh_get_server_publickey
+ssh_get_serverbanner
+ssh_get_status
+ssh_get_version
+ssh_getpass
+ssh_gssapi_get_creds
+ssh_gssapi_set_creds
+ssh_handle_key_exchange
+ssh_init
+ssh_is_blocking
+ssh_is_connected
+ssh_is_server_known
+ssh_key_cmp
+ssh_key_free
+ssh_key_is_private
+ssh_key_is_public
+ssh_key_new
+ssh_key_type
+ssh_key_type_from_name
+ssh_key_type_to_char
+ssh_known_hosts_parse_line
+ssh_knownhosts_entry_free
+ssh_log
+ssh_message_auth_interactive_request
+ssh_message_auth_kbdint_is_response
+ssh_message_auth_password
+ssh_message_auth_pubkey
+ssh_message_auth_publickey
+ssh_message_auth_publickey_state
+ssh_message_auth_reply_pk_ok
+ssh_message_auth_reply_pk_ok_simple
+ssh_message_auth_reply_success
+ssh_message_auth_set_methods
+ssh_message_auth_user
+ssh_message_channel_request_channel
+ssh_message_channel_request_command
+ssh_message_channel_request_env_name
+ssh_message_channel_request_env_value
+ssh_message_channel_request_open_destination
+ssh_message_channel_request_open_destination_port
+ssh_message_channel_request_open_originator
+ssh_message_channel_request_open_originator_port
+ssh_message_channel_request_open_reply_accept
+ssh_message_channel_request_pty_height
+ssh_message_channel_request_pty_pxheight
+ssh_message_channel_request_pty_pxwidth
+ssh_message_channel_request_pty_term
+ssh_message_channel_request_pty_width
+ssh_message_channel_request_reply_success
+ssh_message_channel_request_subsystem
+ssh_message_channel_request_x11_auth_cookie
+ssh_message_channel_request_x11_auth_protocol
+ssh_message_channel_request_x11_screen_number
+ssh_message_channel_request_x11_single_connection
+ssh_message_free
+ssh_message_get
+ssh_message_global_request_address
+ssh_message_global_request_port
+ssh_message_global_request_reply_success
+ssh_message_reply_default
+ssh_message_retrieve
+ssh_message_service_reply_success
+ssh_message_service_service
+ssh_message_subtype
+ssh_message_type
+ssh_mkdir
+ssh_new
+ssh_options_copy
+ssh_options_get
+ssh_options_get_port
+ssh_options_getopt
+ssh_options_parse_config
+ssh_options_set
+ssh_pcap_file_close
+ssh_pcap_file_free
+ssh_pcap_file_new
+ssh_pcap_file_open
+ssh_pki_copy_cert_to_privkey
+ssh_pki_export_privkey_base64
+ssh_pki_export_privkey_file
+ssh_pki_export_privkey_to_pubkey
+ssh_pki_export_pubkey_base64
+ssh_pki_export_pubkey_file
+ssh_pki_generate
+ssh_pki_import_cert_base64
+ssh_pki_import_cert_file
+ssh_pki_import_privkey_base64
+ssh_pki_import_privkey_file
+ssh_pki_import_pubkey_base64
+ssh_pki_import_pubkey_file
+ssh_pki_key_ecdsa_name
+ssh_print_hash
+ssh_print_hexa
+ssh_privatekey_type
+ssh_publickey_to_file
+ssh_remove_channel_callbacks
+ssh_scp_accept_request
+ssh_scp_close
+ssh_scp_deny_request
+ssh_scp_free
+ssh_scp_init
+ssh_scp_leave_directory
+ssh_scp_new
+ssh_scp_pull_request
+ssh_scp_push_directory
+ssh_scp_push_file
+ssh_scp_push_file64
+ssh_scp_read
+ssh_scp_request_get_filename
+ssh_scp_request_get_permissions
+ssh_scp_request_get_size
+ssh_scp_request_get_size64
+ssh_scp_request_get_warning
+ssh_scp_write
+ssh_select
+ssh_send_debug
+ssh_send_ignore
+ssh_send_keepalive
+ssh_server_init_kex
+ssh_service_request
+ssh_session_export_known_hosts_entry
+ssh_session_has_known_hosts_entry
+ssh_session_is_known_server
+ssh_session_update_known_hosts
+ssh_set_agent_channel
+ssh_set_agent_socket
+ssh_set_auth_methods
+ssh_set_blocking
+ssh_set_callbacks
+ssh_set_channel_callbacks
+ssh_set_counters
+ssh_set_fd_except
+ssh_set_fd_toread
+ssh_set_fd_towrite
+ssh_set_log_callback
+ssh_set_log_level
+ssh_set_log_userdata
+ssh_set_message_callback
+ssh_set_pcap_file
+ssh_set_server_callbacks
+ssh_silent_disconnect
+ssh_string_burn
+ssh_string_copy
+ssh_string_data
+ssh_string_fill
+ssh_string_free
+ssh_string_free_char
+ssh_string_from_char
+ssh_string_get_char
+ssh_string_len
+ssh_string_new
+ssh_string_to_char
+ssh_threads_get_noop
+ssh_threads_get_pthread
+ssh_threads_set_callbacks
+ssh_try_publickey_from_file
+ssh_userauth_agent
+ssh_userauth_agent_pubkey
+ssh_userauth_autopubkey
+ssh_userauth_gssapi
+ssh_userauth_kbdint
+ssh_userauth_kbdint_getanswer
+ssh_userauth_kbdint_getinstruction
+ssh_userauth_kbdint_getname
+ssh_userauth_kbdint_getnanswers
+ssh_userauth_kbdint_getnprompts
+ssh_userauth_kbdint_getprompt
+ssh_userauth_kbdint_setanswer
+ssh_userauth_list
+ssh_userauth_none
+ssh_userauth_offer_pubkey
+ssh_userauth_password
+ssh_userauth_privatekey_file
+ssh_userauth_pubkey
+ssh_userauth_publickey
+ssh_userauth_publickey_auto
+ssh_userauth_try_publickey
+ssh_version
+ssh_write_knownhost
+string_burn
+string_copy
+string_data
+string_fill
+string_free
+string_from_char
+string_len
+string_new
+string_to_char

src/ABI/libssh-4.7.2.symbols

@@ -0,0 +1,415 @@
+_ssh_log
+buffer_free
+buffer_get
+buffer_get_len
+buffer_new
+channel_accept_x11
+channel_change_pty_size
+channel_close
+channel_forward_accept
+channel_forward_cancel
+channel_forward_listen
+channel_free
+channel_get_exit_status
+channel_get_session
+channel_is_closed
+channel_is_eof
+channel_is_open
+channel_new
+channel_open_forward
+channel_open_session
+channel_poll
+channel_read
+channel_read_buffer
+channel_read_nonblocking
+channel_request_env
+channel_request_exec
+channel_request_pty
+channel_request_pty_size
+channel_request_send_signal
+channel_request_sftp
+channel_request_shell
+channel_request_subsystem
+channel_request_x11
+channel_select
+channel_send_eof
+channel_set_blocking
+channel_write
+channel_write_stderr
+privatekey_free
+privatekey_from_file
+publickey_free
+publickey_from_file
+publickey_from_privatekey
+publickey_to_string
+sftp_async_read
+sftp_async_read_begin
+sftp_attributes_free
+sftp_canonicalize_path
+sftp_chmod
+sftp_chown
+sftp_client_message_free
+sftp_client_message_get_data
+sftp_client_message_get_filename
+sftp_client_message_get_flags
+sftp_client_message_get_submessage
+sftp_client_message_get_type
+sftp_client_message_set_filename
+sftp_close
+sftp_closedir
+sftp_dir_eof
+sftp_extension_supported
+sftp_extensions_get_count
+sftp_extensions_get_data
+sftp_extensions_get_name
+sftp_file_set_blocking
+sftp_file_set_nonblocking
+sftp_free
+sftp_fstat
+sftp_fstatvfs
+sftp_fsync
+sftp_get_client_message
+sftp_get_error
+sftp_handle
+sftp_handle_alloc
+sftp_handle_remove
+sftp_init
+sftp_lstat
+sftp_mkdir
+sftp_new
+sftp_new_channel
+sftp_open
+sftp_opendir
+sftp_read
+sftp_readdir
+sftp_readlink
+sftp_rename
+sftp_reply_attr
+sftp_reply_data
+sftp_reply_handle
+sftp_reply_name
+sftp_reply_names
+sftp_reply_names_add
+sftp_reply_status
+sftp_rewind
+sftp_rmdir
+sftp_seek
+sftp_seek64
+sftp_send_client_message
+sftp_server_init
+sftp_server_new
+sftp_server_version
+sftp_setstat
+sftp_stat
+sftp_statvfs
+sftp_statvfs_free
+sftp_symlink
+sftp_tell
+sftp_tell64
+sftp_unlink
+sftp_utimes
+sftp_write
+ssh_accept
+ssh_add_channel_callbacks
+ssh_auth_list
+ssh_basename
+ssh_bind_accept
+ssh_bind_accept_fd
+ssh_bind_fd_toaccept
+ssh_bind_free
+ssh_bind_get_fd
+ssh_bind_listen
+ssh_bind_new
+ssh_bind_options_set
+ssh_bind_set_blocking
+ssh_bind_set_callbacks
+ssh_bind_set_fd
+ssh_blocking_flush
+ssh_buffer_add_data
+ssh_buffer_free
+ssh_buffer_get
+ssh_buffer_get_data
+ssh_buffer_get_len
+ssh_buffer_new
+ssh_buffer_reinit
+ssh_channel_accept_forward
+ssh_channel_accept_x11
+ssh_channel_cancel_forward
+ssh_channel_change_pty_size
+ssh_channel_close
+ssh_channel_free
+ssh_channel_get_exit_status
+ssh_channel_get_session
+ssh_channel_is_closed
+ssh_channel_is_eof
+ssh_channel_is_open
+ssh_channel_listen_forward
+ssh_channel_new
+ssh_channel_open_auth_agent
+ssh_channel_open_forward
+ssh_channel_open_reverse_forward
+ssh_channel_open_session
+ssh_channel_open_x11
+ssh_channel_poll
+ssh_channel_poll_timeout
+ssh_channel_read
+ssh_channel_read_nonblocking
+ssh_channel_read_timeout
+ssh_channel_request_auth_agent
+ssh_channel_request_env
+ssh_channel_request_exec
+ssh_channel_request_pty
+ssh_channel_request_pty_size
+ssh_channel_request_send_break
+ssh_channel_request_send_exit_signal
+ssh_channel_request_send_exit_status
+ssh_channel_request_send_signal
+ssh_channel_request_sftp
+ssh_channel_request_shell
+ssh_channel_request_subsystem
+ssh_channel_request_x11
+ssh_channel_select
+ssh_channel_send_eof
+ssh_channel_set_blocking
+ssh_channel_set_counter
+ssh_channel_window_size
+ssh_channel_write
+ssh_channel_write_stderr
+ssh_clean_pubkey_hash
+ssh_connect
+ssh_connector_free
+ssh_connector_new
+ssh_connector_set_in_channel
+ssh_connector_set_in_fd
+ssh_connector_set_out_channel
+ssh_connector_set_out_fd
+ssh_copyright
+ssh_dirname
+ssh_disconnect
+ssh_dump_knownhost
+ssh_event_add_connector
+ssh_event_add_fd
+ssh_event_add_session
+ssh_event_dopoll
+ssh_event_free
+ssh_event_new
+ssh_event_remove_connector
+ssh_event_remove_fd
+ssh_event_remove_session
+ssh_execute_message_callbacks
+ssh_finalize
+ssh_forward_accept
+ssh_forward_cancel
+ssh_forward_listen
+ssh_free
+ssh_get_cipher_in
+ssh_get_cipher_out
+ssh_get_clientbanner
+ssh_get_disconnect_message
+ssh_get_error
+ssh_get_error_code
+ssh_get_fd
+ssh_get_fingerprint_hash
+ssh_get_hexa
+ssh_get_hmac_in
+ssh_get_hmac_out
+ssh_get_issue_banner
+ssh_get_kex_algo
+ssh_get_log_callback
+ssh_get_log_level
+ssh_get_log_userdata
+ssh_get_openssh_version
+ssh_get_poll_flags
+ssh_get_pubkey
+ssh_get_pubkey_hash
+ssh_get_publickey
+ssh_get_publickey_hash
+ssh_get_random
+ssh_get_server_publickey
+ssh_get_serverbanner
+ssh_get_status
+ssh_get_version
+ssh_getpass
+ssh_gssapi_get_creds
+ssh_gssapi_set_creds
+ssh_handle_key_exchange
+ssh_init
+ssh_is_blocking
+ssh_is_connected
+ssh_is_server_known
+ssh_key_cmp
+ssh_key_free
+ssh_key_is_private
+ssh_key_is_public
+ssh_key_new
+ssh_key_type
+ssh_key_type_from_name
+ssh_key_type_to_char
+ssh_known_hosts_parse_line
+ssh_knownhosts_entry_free
+ssh_log
+ssh_message_auth_interactive_request
+ssh_message_auth_kbdint_is_response
+ssh_message_auth_password
+ssh_message_auth_pubkey
+ssh_message_auth_publickey
+ssh_message_auth_publickey_state
+ssh_message_auth_reply_pk_ok
+ssh_message_auth_reply_pk_ok_simple
+ssh_message_auth_reply_success
+ssh_message_auth_set_methods
+ssh_message_auth_user
+ssh_message_channel_request_channel
+ssh_message_channel_request_command
+ssh_message_channel_request_env_name
+ssh_message_channel_request_env_value
+ssh_message_channel_request_open_destination
+ssh_message_channel_request_open_destination_port
+ssh_message_channel_request_open_originator
+ssh_message_channel_request_open_originator_port
+ssh_message_channel_request_open_reply_accept
+ssh_message_channel_request_pty_height
+ssh_message_channel_request_pty_pxheight
+ssh_message_channel_request_pty_pxwidth
+ssh_message_channel_request_pty_term
+ssh_message_channel_request_pty_width
+ssh_message_channel_request_reply_success
+ssh_message_channel_request_subsystem
+ssh_message_channel_request_x11_auth_cookie
+ssh_message_channel_request_x11_auth_protocol
+ssh_message_channel_request_x11_screen_number
+ssh_message_channel_request_x11_single_connection
+ssh_message_free
+ssh_message_get
+ssh_message_global_request_address
+ssh_message_global_request_port
+ssh_message_global_request_reply_success
+ssh_message_reply_default
+ssh_message_retrieve
+ssh_message_service_reply_success
+ssh_message_service_service
+ssh_message_subtype
+ssh_message_type
+ssh_mkdir
+ssh_new
+ssh_options_copy
+ssh_options_get
+ssh_options_get_port
+ssh_options_getopt
+ssh_options_parse_config
+ssh_options_set
+ssh_pcap_file_close
+ssh_pcap_file_free
+ssh_pcap_file_new
+ssh_pcap_file_open
+ssh_pki_copy_cert_to_privkey
+ssh_pki_export_privkey_base64
+ssh_pki_export_privkey_file
+ssh_pki_export_privkey_to_pubkey
+ssh_pki_export_pubkey_base64
+ssh_pki_export_pubkey_file
+ssh_pki_generate
+ssh_pki_import_cert_base64
+ssh_pki_import_cert_file
+ssh_pki_import_privkey_base64
+ssh_pki_import_privkey_file
+ssh_pki_import_pubkey_base64
+ssh_pki_import_pubkey_file
+ssh_pki_key_ecdsa_name
+ssh_print_hash
+ssh_print_hexa
+ssh_privatekey_type
+ssh_publickey_to_file
+ssh_remove_channel_callbacks
+ssh_scp_accept_request
+ssh_scp_close
+ssh_scp_deny_request
+ssh_scp_free
+ssh_scp_init
+ssh_scp_leave_directory
+ssh_scp_new
+ssh_scp_pull_request
+ssh_scp_push_directory
+ssh_scp_push_file
+ssh_scp_push_file64
+ssh_scp_read
+ssh_scp_request_get_filename
+ssh_scp_request_get_permissions
+ssh_scp_request_get_size
+ssh_scp_request_get_size64
+ssh_scp_request_get_warning
+ssh_scp_write
+ssh_select
+ssh_send_debug
+ssh_send_ignore
+ssh_send_keepalive
+ssh_server_init_kex
+ssh_service_request
+ssh_session_export_known_hosts_entry
+ssh_session_has_known_hosts_entry
+ssh_session_is_known_server
+ssh_session_update_known_hosts
+ssh_set_agent_channel
+ssh_set_agent_socket
+ssh_set_auth_methods
+ssh_set_blocking
+ssh_set_callbacks
+ssh_set_channel_callbacks
+ssh_set_counters
+ssh_set_fd_except
+ssh_set_fd_toread
+ssh_set_fd_towrite
+ssh_set_log_callback
+ssh_set_log_level
+ssh_set_log_userdata
+ssh_set_message_callback
+ssh_set_pcap_file
+ssh_set_server_callbacks
+ssh_silent_disconnect
+ssh_string_burn
+ssh_string_copy
+ssh_string_data
+ssh_string_fill
+ssh_string_free
+ssh_string_free_char
+ssh_string_from_char
+ssh_string_get_char
+ssh_string_len
+ssh_string_new
+ssh_string_to_char
+ssh_threads_get_noop
+ssh_threads_get_pthread
+ssh_threads_set_callbacks
+ssh_try_publickey_from_file
+ssh_userauth_agent
+ssh_userauth_agent_pubkey
+ssh_userauth_autopubkey
+ssh_userauth_gssapi
+ssh_userauth_kbdint
+ssh_userauth_kbdint_getanswer
+ssh_userauth_kbdint_getinstruction
+ssh_userauth_kbdint_getname
+ssh_userauth_kbdint_getnanswers
+ssh_userauth_kbdint_getnprompts
+ssh_userauth_kbdint_getprompt
+ssh_userauth_kbdint_setanswer
+ssh_userauth_list
+ssh_userauth_none
+ssh_userauth_offer_pubkey
+ssh_userauth_password
+ssh_userauth_privatekey_file
+ssh_userauth_pubkey
+ssh_userauth_publickey
+ssh_userauth_publickey_auto
+ssh_userauth_try_publickey
+ssh_version
+ssh_write_knownhost
+string_burn
+string_copy
+string_data
+string_fill
+string_free
+string_from_char
+string_len
+string_new
+string_to_char

src/CMakeLists.txt

@@ -48,7 +48,7 @@ if (MBEDTLS_CRYPTO_LIBRARY)
   )
 endif (MBEDTLS_CRYPTO_LIBRARY)
 
-if (GCRYPT_LIBRARY)
+if (GCRYPT_LIBRARIES)
   set(LIBSSH_PRIVATE_INCLUDE_DIRS
     ${LIBSSH_PRIVATE_INCLUDE_DIRS}
     ${GCRYPT_INCLUDE_DIR}
@@ -56,9 +56,8 @@ if (GCRYPT_LIBRARY)
 
   set(LIBSSH_LINK_LIBRARIES
     ${LIBSSH_LINK_LIBRARIES}
-    ${GCRYPT_LIBRARY}
+    ${GCRYPT_LIBRARIES})
-  )
+endif()
-endif (GCRYPT_LIBRARY)
 
 if (WITH_ZLIB)
   set(LIBSSH_PRIVATE_INCLUDE_DIRS
@@ -106,12 +105,12 @@ set(LIBSSH_SHARED_LIBRARY
   CACHE INTERNAL "libssh shared library"
 )
 
-if (WITH_STATIC_LIB)
+if (BUILD_STATIC_LIB)
   set(LIBSSH_STATIC_LIBRARY
     ssh_static
     CACHE INTERNAL "libssh static library"
   )
-endif (WITH_STATIC_LIB)
+endif (BUILD_STATIC_LIB)
 
 set(libssh_SRCS
   agent.c
@@ -165,6 +164,12 @@ set(libssh_SRCS
   chachapoly.c
 )
 
+if (DEFAULT_C_NO_DEPRECATION_FLAGS)
+    set_source_files_properties(known_hosts.c
+                                PROPERTIES
+                                    COMPILE_FLAGS ${DEFAULT_C_NO_DEPRECATION_FLAGS})
+endif()
+
 if (CMAKE_USE_PTHREADS_INIT)
     set(libssh_SRCS
         ${libssh_SRCS}
@@ -266,15 +271,15 @@ include_directories(
 # Set the path to the default map file
 set(MAP_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.map")
 
-if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
+if (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT AND ABIMAP_FOUND)
     # Get the list of header files
-    get_file_list("dev_header_list"
+    get_file_list(dev_header_list
                   DIRECTORIES "${LIBSSH_PUBLIC_INCLUDE_DIRS}/libssh"
                   FILES_PATTERNS "*.h")
 
     # Extract the symbols marked as "LIBSSH_API" from the header files
     extract_symbols("${PROJECT_NAME}_dev.symbols"
-                    HEADERS_LIST_FILE "dev_header_list"
+                    HEADERS_LIST dev_header_list
                     FILTER_PATTERN "LIBSSH_API")
 
     if (WITH_ABI_BREAK)
@@ -292,13 +297,14 @@ if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
       ${libssh_SRCS}
       ${PROJECT_NAME}_dev.map
     )
-endif (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
+endif (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT AND ABIMAP_FOUND)
 
 add_library(${LIBSSH_SHARED_LIBRARY} SHARED ${libssh_SRCS})
+target_compile_options(${LIBSSH_SHARED_LIBRARY} PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 
 target_link_libraries(${LIBSSH_SHARED_LIBRARY} ${LIBSSH_LINK_LIBRARIES})
 
-if (WITH_SYMBOL_VERSIONING)
+if (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT)
     if (ABIMAP_FOUND)
         # Change path to devel map file
         set(MAP_PATH "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_dev.map")
@@ -307,7 +313,7 @@ if (WITH_SYMBOL_VERSIONING)
     set_target_properties(${LIBSSH_SHARED_LIBRARY}
                           PROPERTIES LINK_FLAGS
                           "-Wl,--version-script,\"${MAP_PATH}\"")
-endif (WITH_SYMBOL_VERSIONING)
+endif (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT)
 
 set_target_properties(
   ${LIBSSH_SHARED_LIBRARY}
@@ -340,8 +346,9 @@ install(
   COMPONENT libraries
 )
 
-if (WITH_STATIC_LIB)
+if (BUILD_STATIC_LIB)
   add_library(${LIBSSH_STATIC_LIBRARY} STATIC ${libssh_SRCS})
+  target_compile_options(${LIBSSH_STATIC_LIBRARY} PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 
   if (MSVC)
     set(OUTPUT_SUFFIX static)
@@ -370,14 +377,14 @@ if (WITH_STATIC_LIB)
     )
   endif (WIN32)
 
-  install(
+    if (WITH_STATIC_LIB)
-    TARGETS
+      install(TARGETS
-      ${LIBSSH_STATIC_LIBRARY}
+                ${LIBSSH_STATIC_LIBRARY}
-    DESTINATION
+              DESTINATION
-      ${LIB_INSTALL_DIR}/${OUTPUT_SUFFIX}
+                ${LIB_INSTALL_DIR}/${OUTPUT_SUFFIX}
-    COMPONENT
+              COMPONENT
-      libraries
+                libraries)
-  )
+    endif (WITH_STATIC_LIB)
-endif (WITH_STATIC_LIB)
+endif (BUILD_STATIC_LIB)
 
 message(STATUS "Threads_FOUND=${Threads_FOUND}")

src/agent.c

@@ -56,33 +56,13 @@
 #include "libssh/session.h"
 #include "libssh/poll.h"
 #include "libssh/pki.h"
+#include "libssh/bytearray.h"
 
 /* macro to check for "agent failure" message */
 #define agent_failed(x) \
   (((x) == SSH_AGENT_FAILURE) || ((x) == SSH_COM_AGENT2_FAILURE) || \
    ((x) == SSH2_AGENT_FAILURE))
 
-static uint32_t agent_get_u32(const void *vp) {
-  const uint8_t *p = (const uint8_t *)vp;
-  uint32_t v;
-
-  v  = (uint32_t)p[0] << 24;
-  v |= (uint32_t)p[1] << 16;
-  v |= (uint32_t)p[2] << 8;
-  v |= (uint32_t)p[3];
-
-  return v;
-}
-
-static void agent_put_u32(void *vp, uint32_t v) {
-  uint8_t *p = (uint8_t *)vp;
-
-  p[0] = (uint8_t)(v >> 24) & 0xff;
-  p[1] = (uint8_t)(v >> 16) & 0xff;
-  p[2] = (uint8_t)(v >> 8) & 0xff;
-  p[3] = (uint8_t)v & 0xff;
-}
-
 static size_t atomicio(struct ssh_agent_struct *agent, void *buf, size_t n, int do_read) {
   char *b = buf;
   size_t pos = 0;
@@ -93,7 +73,7 @@ static size_t atomicio(struct ssh_agent_struct *agent, void *buf, size_t n, int
 
   /* Using a socket ? */
   if (channel == NULL) {
-    fd = ssh_socket_get_fd_in(agent->sock);
+    fd = ssh_socket_get_fd(agent->sock);
     pfd.fd = fd;
     pfd.events = do_read ? POLLIN : POLLOUT;
 
@@ -275,7 +255,7 @@ static int agent_talk(struct ssh_session_struct *session,
 
   len = ssh_buffer_get_len(request);
   SSH_LOG(SSH_LOG_TRACE, "Request length: %u", len);
-  agent_put_u32(payload, len);
+  PUSH_BE_U32(payload, 0, len);
 
   /* send length and then the request packet */
   if (atomicio(session->agent, payload, 4, 0) == 4) {
@@ -299,7 +279,7 @@ static int agent_talk(struct ssh_session_struct *session,
     return -1;
   }
 
-  len = agent_get_u32(payload);
+  len = PULL_BE_U32(payload, 0);
   if (len > 256 * 1024) {
     ssh_set_error(session, SSH_FATAL,
         "Authentication response too long: %u", len);
@@ -331,7 +311,7 @@ int ssh_agent_get_ident_count(struct ssh_session_struct *session) {
   ssh_buffer request = NULL;
   ssh_buffer reply = NULL;
   unsigned int type = 0;
-  uint8_t buf[4] = {0};
+  uint32_t count = 0;
   int rc;
 
   /* send message to the agent requesting the list of identities */
@@ -386,8 +366,15 @@ int ssh_agent_get_ident_count(struct ssh_session_struct *session) {
       return -1;
   }
 
-  ssh_buffer_get_u32(reply, (uint32_t *) buf);
+  rc = ssh_buffer_get_u32(reply, &count);
-  session->agent->count = agent_get_u32(buf);
+  if (rc != 4) {
+      ssh_set_error(session,
+                    SSH_FATAL,
+                    "Failed to read count");
+      ssh_buffer_free(reply);
+      return -1;
+  }
+  session->agent->count = ntohl(count);
   SSH_LOG(SSH_LOG_DEBUG, "Agent count: %d",
       session->agent->count);
   if (session->agent->count > 1024) {
@@ -548,6 +535,14 @@ ssh_string ssh_agent_sign_data(ssh_session session,
         return NULL;
     }
 
+    /* Add Flags: SHA2 extension (RFC 8332) if negotiated */
+    if (pubkey->type == SSH_KEYTYPE_RSA) {
+        if (session->extensions & SSH_EXT_SIG_RSA_SHA512) {
+            flags |= SSH_AGENT_RSA_SHA2_512;
+        } else if (session->extensions & SSH_EXT_SIG_RSA_SHA256) {
+            flags |= SSH_AGENT_RSA_SHA2_256;
+        }
+    }
     if (ssh_buffer_add_u32(request, htonl(flags)) < 0) {
         ssh_buffer_free(request);
         return NULL;

src/auth.c

@@ -79,18 +79,52 @@ static int ssh_userauth_request_service(ssh_session session) {
 
 static int ssh_auth_response_termination(void *user) {
     ssh_session session = (ssh_session)user;
-    switch (session->auth_state) {
+    switch (session->auth.state) {
         case SSH_AUTH_STATE_NONE:
         case SSH_AUTH_STATE_KBDINT_SENT:
         case SSH_AUTH_STATE_GSSAPI_REQUEST_SENT:
         case SSH_AUTH_STATE_GSSAPI_TOKEN:
         case SSH_AUTH_STATE_GSSAPI_MIC_SENT:
+        case SSH_AUTH_STATE_PUBKEY_AUTH_SENT:
+        case SSH_AUTH_STATE_PUBKEY_OFFER_SENT:
+        case SSH_AUTH_STATE_PASSWORD_AUTH_SENT:
+        case SSH_AUTH_STATE_AUTH_NONE_SENT:
             return 0;
         default:
             return 1;
     }
 }
 
+static const char *ssh_auth_get_current_method(ssh_session session)
+{
+    const char *method = "unknown";
+
+    switch (session->auth.current_method) {
+    case SSH_AUTH_METHOD_NONE:
+        method = "none";
+        break;
+    case SSH_AUTH_METHOD_PASSWORD:
+        method = "password";
+        break;
+    case SSH_AUTH_METHOD_PUBLICKEY:
+        method = "publickey";
+        break;
+    case SSH_AUTH_METHOD_HOSTBASED:
+        method = "hostbased";
+        break;
+    case SSH_AUTH_METHOD_INTERACTIVE:
+        method = "keyboard interactive";
+        break;
+    case SSH_AUTH_METHOD_GSSAPI_MIC:
+        method = "gssapi";
+        break;
+    default:
+        break;
+    }
+
+    return method;
+}
+
 /**
  * @internal
  * @brief Wait for a response of an authentication function.
@@ -116,7 +150,7 @@ static int ssh_userauth_get_response(ssh_session session) {
         return SSH_AUTH_AGAIN;
     }
 
-    switch(session->auth_state) {
+    switch(session->auth.state) {
         case SSH_AUTH_STATE_ERROR:
             rc = SSH_AUTH_ERROR;
             break;
@@ -137,6 +171,10 @@ static int ssh_userauth_get_response(ssh_session session) {
         case SSH_AUTH_STATE_GSSAPI_REQUEST_SENT:
         case SSH_AUTH_STATE_GSSAPI_TOKEN:
         case SSH_AUTH_STATE_GSSAPI_MIC_SENT:
+        case SSH_AUTH_STATE_PUBKEY_OFFER_SENT:
+        case SSH_AUTH_STATE_PUBKEY_AUTH_SENT:
+        case SSH_AUTH_STATE_PASSWORD_AUTH_SENT:
+        case SSH_AUTH_STATE_AUTH_NONE_SENT:
         case SSH_AUTH_STATE_NONE:
             /* not reached */
             rc = SSH_AUTH_ERROR;
@@ -181,6 +219,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_banner) {
  * This handles the complete or partial authentication failure.
  */
 SSH_PACKET_CALLBACK(ssh_packet_userauth_failure) {
+    const char *current_method = ssh_auth_get_current_method(session);
     char *auth_methods = NULL;
     uint8_t partial = 0;
     int rc;
@@ -191,43 +230,46 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_failure) {
     if (rc != SSH_OK) {
         ssh_set_error(session, SSH_FATAL,
                       "Invalid SSH_MSG_USERAUTH_FAILURE message");
-        session->auth_state=SSH_AUTH_STATE_ERROR;
+        session->auth.state = SSH_AUTH_STATE_ERROR;
         goto end;
     }
 
     if (partial) {
-        session->auth_state=SSH_AUTH_STATE_PARTIAL;
+        session->auth.state = SSH_AUTH_STATE_PARTIAL;
         SSH_LOG(SSH_LOG_INFO,
-                "Partial success. Authentication that can continue: %s",
+                "Partial success for '%s'. Authentication that can continue: %s",
+                current_method,
                 auth_methods);
     } else {
-        session->auth_state=SSH_AUTH_STATE_FAILED;
+        session->auth.state = SSH_AUTH_STATE_FAILED;
-        SSH_LOG(SSH_LOG_INFO,
-                "Access denied. Authentication that can continue: %s",
-                auth_methods);
         ssh_set_error(session, SSH_REQUEST_DENIED,
-                "Access denied. Authentication that can continue: %s",
+                      "Access denied for '%s'. Authentication that can continue: %s",
-                auth_methods);
+                      current_method,
+                      auth_methods);
+        SSH_LOG(SSH_LOG_INFO,
+                "%s",
+                ssh_get_error(session));
 
     }
-    session->auth_methods = 0;
+    session->auth.supported_methods = 0;
     if (strstr(auth_methods, "password") != NULL) {
-        session->auth_methods |= SSH_AUTH_METHOD_PASSWORD;
+        session->auth.supported_methods |= SSH_AUTH_METHOD_PASSWORD;
     }
     if (strstr(auth_methods, "keyboard-interactive") != NULL) {
-        session->auth_methods |= SSH_AUTH_METHOD_INTERACTIVE;
+        session->auth.supported_methods |= SSH_AUTH_METHOD_INTERACTIVE;
     }
     if (strstr(auth_methods, "publickey") != NULL) {
-        session->auth_methods |= SSH_AUTH_METHOD_PUBLICKEY;
+        session->auth.supported_methods |= SSH_AUTH_METHOD_PUBLICKEY;
     }
     if (strstr(auth_methods, "hostbased") != NULL) {
-        session->auth_methods |= SSH_AUTH_METHOD_HOSTBASED;
+        session->auth.supported_methods |= SSH_AUTH_METHOD_HOSTBASED;
     }
     if (strstr(auth_methods, "gssapi-with-mic") != NULL) {
-        session->auth_methods |= SSH_AUTH_METHOD_GSSAPI_MIC;
+        session->auth.supported_methods |= SSH_AUTH_METHOD_GSSAPI_MIC;
     }
 
 end:
+    session->auth.current_method = SSH_AUTH_METHOD_UNKNOWN;
     SAFE_FREE(auth_methods);
 
     return SSH_PACKET_USED;
@@ -248,7 +290,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_success) {
   SSH_LOG(SSH_LOG_DEBUG, "Authentication successful");
   SSH_LOG(SSH_LOG_TRACE, "Received SSH_USERAUTH_SUCCESS");
 
-  session->auth_state = SSH_AUTH_STATE_SUCCESS;
+  session->auth.state = SSH_AUTH_STATE_SUCCESS;
   session->session_state = SSH_SESSION_STATE_AUTHENTICATED;
   session->flags |= SSH_SESSION_FLAG_AUTHENTICATED;
 
@@ -261,6 +303,9 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_success) {
       session->current_crypto->do_compress_in = 1;
   }
 
+    /* Reset errors by previous authentication methods. */
+    ssh_reset_error(session);
+    session->auth.current_method = SSH_AUTH_METHOD_UNKNOWN;
   return SSH_PACKET_USED;
 }
 
@@ -275,24 +320,30 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_success) {
 SSH_PACKET_CALLBACK(ssh_packet_userauth_pk_ok) {
     int rc;
 
-  SSH_LOG(SSH_LOG_TRACE, "Received SSH_USERAUTH_PK_OK/INFO_REQUEST/GSSAPI_RESPONSE");
-
-  if (session->auth_state==SSH_AUTH_STATE_KBDINT_SENT) {
-    /* Assuming we are in keyboard-interactive context */
     SSH_LOG(SSH_LOG_TRACE,
-            "keyboard-interactive context, assuming SSH_USERAUTH_INFO_REQUEST");
+            "Received SSH_USERAUTH_PK_OK/INFO_REQUEST/GSSAPI_RESPONSE");
-    rc = ssh_packet_userauth_info_request(session,type,packet,user);
-#ifdef WITH_GSSAPI
-  } else if (session->auth_state == SSH_AUTH_STATE_GSSAPI_REQUEST_SENT) {
-    rc = ssh_packet_userauth_gssapi_response(session, type, packet, user);
-#endif
-  } else {
-    session->auth_state = SSH_AUTH_STATE_PK_OK;
-    SSH_LOG(SSH_LOG_TRACE, "Assuming SSH_USERAUTH_PK_OK");
-    rc = SSH_PACKET_USED;
-  }
 
-  return rc;
+    if (session->auth.state == SSH_AUTH_STATE_KBDINT_SENT) {
+        /* Assuming we are in keyboard-interactive context */
+        SSH_LOG(SSH_LOG_TRACE,
+                "keyboard-interactive context, "
+                "assuming SSH_USERAUTH_INFO_REQUEST");
+        rc = ssh_packet_userauth_info_request(session,type,packet,user);
+#ifdef WITH_GSSAPI
+    } else if (session->auth.state == SSH_AUTH_STATE_GSSAPI_REQUEST_SENT) {
+        rc = ssh_packet_userauth_gssapi_response(session, type, packet, user);
+#endif
+    } else if (session->auth.state == SSH_AUTH_STATE_PUBKEY_OFFER_SENT) {
+        session->auth.state = SSH_AUTH_STATE_PK_OK;
+        SSH_LOG(SSH_LOG_TRACE, "Assuming SSH_USERAUTH_PK_OK");
+        rc = SSH_PACKET_USED;
+    } else {
+        session->auth.state = SSH_AUTH_STATE_ERROR;
+        SSH_LOG(SSH_LOG_TRACE, "SSH_USERAUTH_PK_OK received in wrong state");
+        rc = SSH_PACKET_USED;
+    }
+
+    return rc;
 }
 
 /**
@@ -323,7 +374,7 @@ int ssh_userauth_list(ssh_session session, const char *username)
         return 0;
     }
 
-    return session->auth_methods;
+    return session->auth.supported_methods;
 }
 
 /**
@@ -378,7 +429,8 @@ int ssh_userauth_none(ssh_session session, const char *username) {
         goto fail;
     }
 
-    session->auth_state = SSH_AUTH_STATE_NONE;
+    session->auth.current_method = SSH_AUTH_METHOD_NONE;
+    session->auth.state = SSH_AUTH_STATE_AUTH_NONE_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_NONE;
     rc = ssh_packet_send(session);
     if (rc == SSH_ERROR) {
@@ -432,6 +484,7 @@ int ssh_userauth_try_publickey(ssh_session session,
                                const ssh_key pubkey)
 {
     ssh_string pubkey_s = NULL;
+    const char *sig_type_c = NULL;
     int rc;
 
     if (session == NULL) {
@@ -456,6 +509,34 @@ int ssh_userauth_try_publickey(ssh_session session,
             return SSH_ERROR;
     }
 
+    switch (pubkey->type) {
+    case SSH_KEYTYPE_UNKNOWN:
+        ssh_set_error(session,
+                      SSH_REQUEST_DENIED,
+                      "Invalid key type (unknown)");
+        return SSH_AUTH_DENIED;
+    case SSH_KEYTYPE_ECDSA:
+        sig_type_c = ssh_pki_key_ecdsa_name(pubkey);
+        break;
+    case SSH_KEYTYPE_DSS:
+    case SSH_KEYTYPE_RSA:
+    case SSH_KEYTYPE_RSA1:
+    case SSH_KEYTYPE_ED25519:
+    case SSH_KEYTYPE_DSS_CERT01:
+    case SSH_KEYTYPE_RSA_CERT01:
+        sig_type_c = ssh_key_get_signature_algorithm(session, pubkey->type);
+        break;
+    }
+
+    /* Check if the given public key algorithm is allowed */
+    if (!ssh_key_algorithm_allowed(session, sig_type_c)) {
+        ssh_set_error(session, SSH_REQUEST_DENIED,
+                      "The key algorithm '%s' is not allowed to be used by"
+                      " PUBLICKEY_ACCEPTED_TYPES configuration option",
+                      sig_type_c);
+        return SSH_AUTH_DENIED;
+    }
+
     rc = ssh_userauth_request_service(session);
     if (rc == SSH_AGAIN) {
         return SSH_AUTH_AGAIN;
@@ -476,7 +557,7 @@ int ssh_userauth_try_publickey(ssh_session session,
             "ssh-connection",
             "publickey",
             0, /* private key ? */
-            pubkey->type_c, /* algo */
+            sig_type_c, /* algo */
             pubkey_s /* public key */
             );
     if (rc < 0) {
@@ -485,7 +566,8 @@ int ssh_userauth_try_publickey(ssh_session session,
 
     ssh_string_free(pubkey_s);
 
-    session->auth_state = SSH_AUTH_STATE_NONE;
+    session->auth.current_method = SSH_AUTH_METHOD_PUBLICKEY;
+    session->auth.state = SSH_AUTH_STATE_PUBKEY_OFFER_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_OFFER_PUBKEY;
     rc = ssh_packet_send(session);
     if (rc == SSH_ERROR) {
@@ -536,7 +618,7 @@ int ssh_userauth_publickey(ssh_session session,
 {
     ssh_string str = NULL;
     int rc;
-    const char *type_c;
+    const char *sig_type_c = NULL;
     enum ssh_keytypes_e key_type;
 
     if (session == NULL) {
@@ -560,6 +642,37 @@ int ssh_userauth_publickey(ssh_session session,
             return SSH_AUTH_ERROR;
     }
 
+    /* Cert auth requires presenting the cert type name (*-cert@openssh.com) */
+    key_type = privkey->cert != NULL ? privkey->cert_type : privkey->type;
+
+    switch (key_type) {
+    case SSH_KEYTYPE_UNKNOWN:
+        ssh_set_error(session,
+                      SSH_REQUEST_DENIED,
+                      "Invalid key type (unknown)");
+        return SSH_AUTH_DENIED;
+    case SSH_KEYTYPE_ECDSA:
+        sig_type_c = ssh_pki_key_ecdsa_name(privkey);
+        break;
+    case SSH_KEYTYPE_DSS:
+    case SSH_KEYTYPE_RSA:
+    case SSH_KEYTYPE_RSA1:
+    case SSH_KEYTYPE_ED25519:
+    case SSH_KEYTYPE_DSS_CERT01:
+    case SSH_KEYTYPE_RSA_CERT01:
+        sig_type_c = ssh_key_get_signature_algorithm(session, key_type);
+        break;
+    }
+
+    /* Check if the given public key algorithm is allowed */
+    if (!ssh_key_algorithm_allowed(session, sig_type_c)) {
+        ssh_set_error(session, SSH_REQUEST_DENIED,
+                      "The key algorithm '%s' is not allowed to be used by"
+                      " PUBLICKEY_ACCEPTED_TYPES configuration option",
+                      sig_type_c);
+        return SSH_AUTH_DENIED;
+    }
+
     rc = ssh_userauth_request_service(session);
     if (rc == SSH_AGAIN) {
         return SSH_AUTH_AGAIN;
@@ -567,10 +680,6 @@ int ssh_userauth_publickey(ssh_session session,
         return SSH_AUTH_ERROR;
     }
 
-    /* Cert auth requires presenting the cert type name (*-cert@openssh.com) */
-    key_type = privkey->cert != NULL ? privkey->cert_type : privkey->type;
-    type_c = ssh_key_type_to_char(key_type);
-
     /* get public key or cert */
     rc = ssh_pki_export_pubkey_blob(privkey, &str);
     if (rc < 0) {
@@ -584,7 +693,7 @@ int ssh_userauth_publickey(ssh_session session,
             "ssh-connection",
             "publickey",
             1, /* private key */
-            type_c, /* algo */
+            sig_type_c, /* algo */
             str /* public key or cert */
             );
     if (rc < 0) {
@@ -605,7 +714,8 @@ int ssh_userauth_publickey(ssh_session session,
         goto fail;
     }
 
-    session->auth_state = SSH_AUTH_STATE_NONE;
+    session->auth.current_method = SSH_AUTH_METHOD_PUBLICKEY;
+    session->auth.state = SSH_AUTH_STATE_PUBKEY_AUTH_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_PUBKEY;
     rc = ssh_packet_send(session);
     if (rc == SSH_ERROR) {
@@ -632,7 +742,9 @@ static int ssh_userauth_agent_publickey(ssh_session session,
                                         const char *username,
                                         ssh_key pubkey)
 {
-    ssh_string str = NULL;
+    ssh_string pubkey_s = NULL;
+    ssh_string sig_blob = NULL;
+    const char *sig_type_c = NULL;
     int rc;
 
     switch(session->pending_call_state) {
@@ -654,12 +766,22 @@ static int ssh_userauth_agent_publickey(ssh_session session,
         return SSH_AUTH_ERROR;
     }
 
-
     /* public key */
-    rc = ssh_pki_export_pubkey_blob(pubkey, &str);
+    rc = ssh_pki_export_pubkey_blob(pubkey, &pubkey_s);
     if (rc < 0) {
         goto fail;
     }
+    sig_type_c = ssh_key_get_signature_algorithm(session, pubkey->type);
+
+    /* Check if the given public key algorithm is allowed */
+    if (!ssh_key_algorithm_allowed(session, sig_type_c)) {
+        ssh_set_error(session, SSH_REQUEST_DENIED,
+                      "The key algorithm '%s' is not allowed to be used by"
+                      " PUBLICKEY_ACCEPTED_TYPES configuration option",
+                      sig_type_c);
+        SSH_STRING_FREE(pubkey_s);
+        return SSH_AUTH_DENIED;
+    }
 
     /* request */
     rc = ssh_buffer_pack(session->out_buffer, "bsssbsS",
@@ -668,29 +790,28 @@ static int ssh_userauth_agent_publickey(ssh_session session,
             "ssh-connection",
             "publickey",
             1, /* private key */
-            pubkey->type_c, /* algo */
+            sig_type_c, /* algo */
-            str /* public key */
+            pubkey_s /* public key */
             );
+    SSH_STRING_FREE(pubkey_s);
     if (rc < 0) {
         goto fail;
     }
 
-    ssh_string_free(str);
-
     /* sign the buffer with the private key */
-    str = ssh_pki_do_sign_agent(session, session->out_buffer, pubkey);
+    sig_blob = ssh_pki_do_sign_agent(session, session->out_buffer, pubkey);
-    if (str == NULL) {
+    if (sig_blob == NULL) {
         goto fail;
     }
 
-    rc = ssh_buffer_add_ssh_string(session->out_buffer, str);
+    rc = ssh_buffer_add_ssh_string(session->out_buffer, sig_blob);
-    ssh_string_free(str);
+    SSH_STRING_FREE(sig_blob);
-    str = NULL;
     if (rc < 0) {
         goto fail;
     }
 
-    session->auth_state = SSH_AUTH_STATE_NONE;
+    session->auth.current_method = SSH_AUTH_METHOD_PUBLICKEY;
+    session->auth.state = SSH_AUTH_STATE_PUBKEY_AUTH_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_AGENT;
     rc = ssh_packet_send(session);
     if (rc == SSH_ERROR) {
@@ -707,7 +828,7 @@ pending:
 fail:
     ssh_set_error_oom(session);
     ssh_buffer_reinit(session->out_buffer);
-    ssh_string_free(str);
+    SSH_STRING_FREE(pubkey_s);
 
     return SSH_AUTH_ERROR;
 }
@@ -905,23 +1026,22 @@ int ssh_userauth_publickey_auto(ssh_session session,
         return SSH_AUTH_ERROR;
     }
     if (! (session->opts.flags & SSH_OPT_FLAG_PUBKEY_AUTH)) {
-        session->auth_methods &= ~SSH_AUTH_METHOD_PUBLICKEY;
+        session->auth.supported_methods &= ~SSH_AUTH_METHOD_PUBLICKEY;
         return SSH_AUTH_DENIED;
     }
     if (session->common.callbacks) {
         auth_fn = session->common.callbacks->auth_function;
         auth_data = session->common.callbacks->userdata;
     }
-    if (!session->auth_auto_state) {
+    if (!session->auth.auto_state) {
-        session->auth_auto_state =
+        session->auth.auto_state =
-                malloc(sizeof(struct ssh_auth_auto_state_struct));
+                calloc(1, sizeof(struct ssh_auth_auto_state_struct));
-        if (!session->auth_auto_state) {
+        if (!session->auth.auto_state) {
             ssh_set_error_oom(session);
             return SSH_AUTH_ERROR;
         }
-        ZERO_STRUCTP(session->auth_auto_state);
     }
-    state = session->auth_auto_state;
+    state = session->auth.auto_state;
     if (state->state == SSH_AUTH_AUTO_STATE_NONE) {
 #ifndef _WIN32
         /* Try authentication with ssh-agent first */
@@ -954,7 +1074,7 @@ int ssh_userauth_publickey_auto(ssh_session session,
                         SSH_FATAL,
                         "Failed to import public key: %s",
                         pubkey_file);
-                SAFE_FREE(session->auth_auto_state);
+                SAFE_FREE(session->auth.auto_state);
                 return SSH_AUTH_ERROR;
             } else if (rc == SSH_EOF) {
                 /* Read the private key and save the public key to file */
@@ -982,7 +1102,7 @@ int ssh_userauth_publickey_auto(ssh_session session,
                 rc = ssh_pki_export_privkey_to_pubkey(state->privkey, &state->pubkey);
                 if (rc == SSH_ERROR) {
                     ssh_key_free(state->privkey);
-                    SAFE_FREE(session->auth_auto_state);
+                    SAFE_FREE(session->auth.auto_state);
                     return SSH_AUTH_ERROR;
                 }
 
@@ -1003,7 +1123,7 @@ int ssh_userauth_publickey_auto(ssh_session session,
                         privkey_file);
                 ssh_key_free(state->privkey);
                 ssh_key_free(state->pubkey);
-                SAFE_FREE(session->auth_auto_state);
+                SAFE_FREE(session->auth.auto_state);
                 return rc;
             } else if (rc == SSH_AUTH_AGAIN) {
                 return rc;
@@ -1056,7 +1176,7 @@ int ssh_userauth_publickey_auto(ssh_session session,
             if (rc != SSH_AUTH_AGAIN && rc != SSH_AUTH_DENIED) {
                 ssh_key_free(state->privkey);
                 ssh_key_free(state->pubkey);
-                SAFE_FREE(session->auth_auto_state);
+                SAFE_FREE(session->auth.auto_state);
                 if (rc == SSH_AUTH_SUCCESS) {
                     SSH_LOG(SSH_LOG_INFO,
                             "Successfully authenticated using %s",
@@ -1077,7 +1197,7 @@ int ssh_userauth_publickey_auto(ssh_session session,
     }
     SSH_LOG(SSH_LOG_INFO,
             "Tried every public key, none matched");
-    SAFE_FREE(session->auth_auto_state);
+    SAFE_FREE(session->auth.auto_state);
     return SSH_AUTH_DENIED;
 }
 
@@ -1121,7 +1241,7 @@ int ssh_userauth_password(ssh_session session,
     switch(session->pending_call_state) {
         case SSH_PENDING_CALL_NONE:
             break;
-        case SSH_PENDING_CALL_AUTH_OFFER_PUBKEY:
+        case SSH_PENDING_CALL_AUTH_PASSWORD:
             goto pending;
         default:
             ssh_set_error(session,
@@ -1151,8 +1271,9 @@ int ssh_userauth_password(ssh_session session,
         goto fail;
     }
 
-    session->auth_state = SSH_AUTH_STATE_NONE;
+    session->auth.current_method = SSH_AUTH_METHOD_PASSWORD;
-    session->pending_call_state = SSH_PENDING_CALL_AUTH_OFFER_PUBKEY;
+    session->auth.state = SSH_AUTH_STATE_PASSWORD_AUTH_SENT;
+    session->pending_call_state = SSH_PENDING_CALL_AUTH_PASSWORD;
     rc = ssh_packet_send(session);
     if (rc == SSH_ERROR) {
         return SSH_AUTH_ERROR;
@@ -1228,7 +1349,9 @@ void ssh_kbdint_free(ssh_kbdint kbd) {
     n = kbd->nprompts;
     if (kbd->prompts) {
         for (i = 0; i < n; i++) {
-            explicit_bzero(kbd->prompts[i], strlen(kbd->prompts[i]));
+            if (kbd->prompts[i] != NULL) {
+                explicit_bzero(kbd->prompts[i], strlen(kbd->prompts[i]));
+            }
             SAFE_FREE(kbd->prompts[i]);
         }
         SAFE_FREE(kbd->prompts);
@@ -1237,7 +1360,9 @@ void ssh_kbdint_free(ssh_kbdint kbd) {
     n = kbd->nanswers;
     if (kbd->answers) {
         for (i = 0; i < n; i++) {
-            explicit_bzero(kbd->answers[i], strlen(kbd->answers[i]));
+            if (kbd->answers[i] != NULL) {
+                explicit_bzero(kbd->answers[i], strlen(kbd->answers[i]));
+            }
             SAFE_FREE(kbd->answers[i]);
         }
         SAFE_FREE(kbd->answers);
@@ -1319,7 +1444,7 @@ static int ssh_userauth_kbdint_init(ssh_session session,
     }
 
 
-    session->auth_state = SSH_AUTH_STATE_KBDINT_SENT;
+    session->auth.state = SSH_AUTH_STATE_KBDINT_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_KBDINT_INIT;
 
     SSH_LOG(SSH_LOG_DEBUG,
@@ -1378,7 +1503,8 @@ static int ssh_userauth_kbdint_send(ssh_session session)
         }
     }
 
-    session->auth_state = SSH_AUTH_STATE_KBDINT_SENT;
+    session->auth.current_method = SSH_AUTH_METHOD_INTERACTIVE;
+    session->auth.state = SSH_AUTH_STATE_KBDINT_SENT;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_KBDINT_SEND;
     ssh_kbdint_free(session->kbdint);
     session->kbdint = NULL;
@@ -1468,7 +1594,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
         return SSH_PACKET_USED;
     }
 
-    session->kbdint->echo = malloc(nprompts);
+    session->kbdint->echo = calloc(nprompts, sizeof(unsigned char));
     if (session->kbdint->echo == NULL) {
         session->kbdint->nprompts = 0;
         ssh_set_error_oom(session);
@@ -1477,7 +1603,6 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
 
         return SSH_PACKET_USED;
     }
-    memset(session->kbdint->echo, 0, nprompts);
 
     for (i = 0; i < nprompts; i++) {
         rc = ssh_buffer_unpack(packet, "sb",
@@ -1491,7 +1616,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
             return SSH_PACKET_USED;
         }
     }
-    session->auth_state=SSH_AUTH_STATE_INFO;
+    session->auth.state=SSH_AUTH_STATE_INFO;
 
     return SSH_PACKET_USED;
 }
@@ -1791,12 +1916,14 @@ int ssh_userauth_gssapi(ssh_session session) {
         return SSH_AUTH_ERROR;
     }
     SSH_LOG(SSH_LOG_PROTOCOL, "Authenticating with gssapi-with-mic");
-    session->auth_state = SSH_AUTH_STATE_NONE;
+
+    session->auth.current_method = SSH_AUTH_METHOD_GSSAPI_MIC;
+    session->auth.state = SSH_AUTH_STATE_NONE;
     session->pending_call_state = SSH_PENDING_CALL_AUTH_GSSAPI_MIC;
     rc = ssh_gssapi_auth_mic(session);
 
     if (rc == SSH_AUTH_ERROR || rc == SSH_AUTH_DENIED) {
-        session->auth_state = SSH_AUTH_STATE_NONE;
+        session->auth.state = SSH_AUTH_STATE_NONE;
         session->pending_call_state = SSH_PENDING_CALL_NONE;
         return rc;
     }

src/bignum.c

@@ -69,7 +69,7 @@ ssh_string ssh_make_bignum_string(bignum num) {
 
 bignum ssh_make_string_bn(ssh_string string){
   bignum bn = NULL;
-  unsigned int len = ssh_string_len(string);
+  size_t len = ssh_string_len(string);
 
 #ifdef DEBUG_CRYPTO
   fprintf(stderr, "Importing a %d bits, %d bytes object ...\n",
@@ -88,12 +88,12 @@ bignum ssh_make_string_bn(ssh_string string){
   return bn;
 }
 
-void ssh_make_string_bn_inplace(ssh_string string, bignum bnout) {
+void ssh_make_string_bn_inplace(ssh_string string,
-  unsigned int len = ssh_string_len(string);
+                                UNUSED_PARAM(bignum bnout))
+{
+  UNUSED_VAR(size_t len) = ssh_string_len(string);
 #ifdef HAVE_LIBGCRYPT
   /* XXX: FIXME as needed for LIBGCRYPT ECDSA codepaths. */
-  (void) len;
-  (void) bnout;
 #elif defined HAVE_LIBCRYPTO
   bignum_bin2bn(string->data, len, bnout);
 #elif defined HAVE_LIBMBEDCRYPTO

src/bind.c

@@ -447,7 +447,7 @@ int ssh_bind_accept_fd(ssh_bind sshbind, ssh_session session, socket_t fd){
       return SSH_ERROR;
     }
     ssh_socket_set_fd(session->socket, fd);
-    ssh_socket_get_poll_handle_out(session->socket);
+    ssh_socket_get_poll_handle(session->socket);
 
     /* We must try to import any keys that could be imported in case
      * we are not using ssh_bind_listen (which is the other place

src/buffer.c

@@ -25,6 +25,7 @@
 
 #include <limits.h>
 #include <stdarg.h>
+#include <stdbool.h>
 
 #ifndef _WIN32
 #include <netinet/in.h>
@@ -36,6 +37,24 @@
 #include "libssh/misc.h"
 #include "libssh/bignum.h"
 
+/*
+ * Describes a buffer state
+ * [XXXXXXXXXXXXDATA PAYLOAD       XXXXXXXXXXXXXXXXXXXXXXXX]
+ * ^            ^                  ^                       ^]
+ * \_data points\_pos points here  \_used points here |    /
+ *   here                                          Allocated
+ */
+struct ssh_buffer_struct {
+    bool secure;
+    size_t used;
+    size_t allocated;
+    size_t pos;
+    uint8_t *data;
+};
+
+/* Buffer size maximum is 256M */
+#define BUFFER_SIZE_MAX 0x10000000
+
 /**
  * @defgroup libssh_buffer The SSH buffer functions.
  * @ingroup libssh
@@ -54,24 +73,38 @@
  *
  * @param[in]  buf      The buffer to check.
  */
-static void buffer_verify(ssh_buffer buf){
+static void buffer_verify(ssh_buffer buf)
-  int doabort=0;
+{
-  if(buf->data == NULL)
+    bool do_abort = false;
-    return;
+
-  if(buf->used > buf->allocated){
+    if (buf->data == NULL) {
-    fprintf(stderr,"Buffer error : allocated %u, used %u\n",buf->allocated, buf->used);
+        return;
-    doabort=1;
+    }
-  }
+
-  if(buf->pos > buf->used){
+    if (buf->used > buf->allocated) {
-    fprintf(stderr,"Buffer error : position %u, used %u\n",buf->pos, buf->used);
+        fprintf(stderr,
-    doabort=1;
+                "BUFFER ERROR: allocated %zu, used %zu\n",
-  }
+                buf->allocated,
-  if(buf->pos > buf->allocated){
+                buf->used);
-      fprintf(stderr,"Buffer error : position %u, allocated %u\n",buf->pos, buf->allocated);
+        do_abort = true;
-      doabort=1;
+    }
-  }
+    if (buf->pos > buf->used) {
-  if(doabort)
+        fprintf(stderr,
-    abort();
+                "BUFFER ERROR: position %zu, used %zu\n",
+                buf->pos,
+                buf->used);
+        do_abort = true;
+    }
+    if (buf->pos > buf->allocated) {
+        fprintf(stderr,
+                "BUFFER ERROR: position %zu, allocated %zu\n",
+                buf->pos,
+                buf->allocated);
+        do_abort = true;
+    }
+    if (do_abort) {
+        abort();
+    }
 }
 
 #else
@@ -83,15 +116,29 @@ static void buffer_verify(ssh_buffer buf){
  *
  * @return A newly initialized SSH buffer, NULL on error.
  */
-struct ssh_buffer_struct *ssh_buffer_new(void) {
+struct ssh_buffer_struct *ssh_buffer_new(void)
-  struct ssh_buffer_struct *buf =
+{
-      calloc(1, sizeof(struct ssh_buffer_struct));
+    struct ssh_buffer_struct *buf = NULL;
-  if (buf == NULL) {
+    int rc;
-    return NULL;
-  }
 
-  buffer_verify(buf);
+    buf = calloc(1, sizeof(struct ssh_buffer_struct));
-  return buf;
+    if (buf == NULL) {
+        return NULL;
+    }
+
+    /*
+     * Always preallocate 64 bytes.
+     *
+     * -1 for ralloc_buffer magic.
+     */
+    rc = ssh_buffer_allocate_size(buf, 64 - 1);
+    if (rc != 0) {
+        SAFE_FREE(buf);
+        return NULL;
+    }
+    buffer_verify(buf);
+
+    return buf;
 }
 
 /**
@@ -99,19 +146,23 @@ struct ssh_buffer_struct *ssh_buffer_new(void) {
  *
  * \param[in]  buffer   The buffer to free.
  */
-void ssh_buffer_free(struct ssh_buffer_struct *buffer) {
+void ssh_buffer_free(struct ssh_buffer_struct *buffer)
-  if (buffer == NULL) {
+{
-    return;
+    if (buffer == NULL) {
-  }
+        return;
-  buffer_verify(buffer);
+    }
+    buffer_verify(buffer);
 
-  if (buffer->data) {
+    if (buffer->secure && buffer->allocated > 0) {
-    /* burn the data */
+        /* burn the data */
-    explicit_bzero(buffer->data, buffer->allocated);
+        explicit_bzero(buffer->data, buffer->allocated);
-    SAFE_FREE(buffer->data);
+        SAFE_FREE(buffer->data);
-  }
+
-  explicit_bzero(buffer, sizeof(struct ssh_buffer_struct));
+        explicit_bzero(buffer, sizeof(struct ssh_buffer_struct));
-  SAFE_FREE(buffer);
+    } else {
+        SAFE_FREE(buffer->data);
+    }
+    SAFE_FREE(buffer);
 }
 
 /**
@@ -122,13 +173,15 @@ void ssh_buffer_free(struct ssh_buffer_struct *buffer) {
  *
  * @param[in] buffer buffer to set secure.
  */
-void ssh_buffer_set_secure(ssh_buffer buffer){
+void ssh_buffer_set_secure(ssh_buffer buffer)
-	buffer->secure = 1;
+{
+    buffer->secure = true;
 }
 
-static int realloc_buffer(struct ssh_buffer_struct *buffer, size_t needed) {
+static int realloc_buffer(struct ssh_buffer_struct *buffer, size_t needed)
+{
     size_t smallest = 1;
-    char *new;
+    uint8_t *new = NULL;
 
     buffer_verify(buffer);
 
@@ -140,25 +193,28 @@ static int realloc_buffer(struct ssh_buffer_struct *buffer, size_t needed) {
         smallest <<= 1;
     }
     needed = smallest;
-    if (buffer->secure){
+
+    if (needed > BUFFER_SIZE_MAX) {
+        return -1;
+    }
+
+    if (buffer->secure) {
         new = malloc(needed);
         if (new == NULL) {
             return -1;
         }
-        if (buffer->used > 0) {
+        memcpy(new, buffer->data, buffer->used);
-            memcpy(new, buffer->data,buffer->used);
+        explicit_bzero(buffer->data, buffer->used);
-            explicit_bzero(buffer->data, buffer->used);
+        SAFE_FREE(buffer->data);
-            SAFE_FREE(buffer->data);
-        }
     } else {
         new = realloc(buffer->data, needed);
         if (new == NULL) {
-            buffer->data = NULL;
             return -1;
         }
     }
     buffer->data = new;
     buffer->allocated = needed;
+
     buffer_verify(buffer);
     return 0;
 }
@@ -167,45 +223,64 @@ static int realloc_buffer(struct ssh_buffer_struct *buffer, size_t needed) {
  * @brief shifts a buffer to remove unused data in the beginning
  * @param buffer SSH buffer
  */
-static void buffer_shift(ssh_buffer buffer){
+static void buffer_shift(ssh_buffer buffer)
-  uint32_t burn_pos = buffer->pos;
+{
+    size_t burn_pos = buffer->pos;
 
-  buffer_verify(buffer);
+    buffer_verify(buffer);
-  if(buffer->pos==0)
-    return;
-  memmove(buffer->data, buffer->data + buffer->pos, buffer->used - buffer->pos);
-  buffer->used -= buffer->pos;
-  buffer->pos=0;
 
-  if (buffer->secure){
+    if (buffer->pos == 0) {
-	  void *ptr = buffer->data + buffer->used;
+        return;
-	  explicit_bzero(ptr, burn_pos);
+    }
-  }
+    memmove(buffer->data,
+            buffer->data + buffer->pos,
+            buffer->used - buffer->pos);
+    buffer->used -= buffer->pos;
+    buffer->pos = 0;
 
-  buffer_verify(buffer);
+    if (buffer->secure) {
+        void *ptr = buffer->data + buffer->used;
+        explicit_bzero(ptr, burn_pos);
+    }
+
+    buffer_verify(buffer);
 }
 
 /**
  * @brief Reinitialize a SSH buffer.
  *
+ * In case the buffer has exceeded 64K in size, the buffer will be reallocated
+ * to 64K.
+ *
  * @param[in]  buffer   The buffer to reinitialize.
  *
  * @return              0 on success, < 0 on error.
  */
 int ssh_buffer_reinit(struct ssh_buffer_struct *buffer)
 {
+    if (buffer == NULL) {
+        return -1;
+    }
+
     buffer_verify(buffer);
-    if (buffer->used > 0) {
+
-        explicit_bzero(buffer->data, buffer->used);
+    if (buffer->secure && buffer->allocated > 0) {
+        explicit_bzero(buffer->data, buffer->allocated);
     }
     buffer->used = 0;
     buffer->pos = 0;
 
-    if (buffer->allocated > 127) {
+    /* If the buffer is bigger then 64K, reset it to 64K */
-        if (realloc_buffer(buffer, 127) < 0) {
+    if (buffer->allocated > 65536) {
+        int rc;
+
+        /* -1 for realloc_buffer magic */
+        rc = realloc_buffer(buffer, 65536 - 1);
+        if (rc != 0) {
             return -1;
         }
     }
+
     buffer_verify(buffer);
 
     return 0;
@@ -683,32 +758,149 @@ int ssh_buffer_validate_length(struct ssh_buffer_struct *buffer, size_t len)
  *
  * @returns             The SSH String, NULL on error.
  */
-struct ssh_string_struct *ssh_buffer_get_ssh_string(struct ssh_buffer_struct *buffer) {
+struct ssh_string_struct *
-  uint32_t stringlen;
+ssh_buffer_get_ssh_string(struct ssh_buffer_struct *buffer)
-  uint32_t hostlen;
+{
-  struct ssh_string_struct *str = NULL;
+    uint32_t stringlen;
-  int rc;
+    uint32_t hostlen;
+    struct ssh_string_struct *str = NULL;
+    int rc;
 
-  if (ssh_buffer_get_u32(buffer, &stringlen) == 0) {
+    rc = ssh_buffer_get_u32(buffer, &stringlen);
-    return NULL;
+    if (rc == 0) {
-  }
+        return NULL;
-  hostlen = ntohl(stringlen);
+    }
-  /* verify if there is enough space in buffer to get it */
+    hostlen = ntohl(stringlen);
-  rc = ssh_buffer_validate_length(buffer, hostlen);
+    /* verify if there is enough space in buffer to get it */
-  if (rc != SSH_OK) {
+    rc = ssh_buffer_validate_length(buffer, hostlen);
-    return NULL; /* it is indeed */
+    if (rc != SSH_OK) {
-  }
+      return NULL; /* it is indeed */
-  str = ssh_string_new(hostlen);
+    }
-  if (str == NULL) {
+    str = ssh_string_new(hostlen);
-    return NULL;
+    if (str == NULL) {
-  }
+        return NULL;
-  if (ssh_buffer_get_data(buffer, ssh_string_data(str), hostlen) != hostlen) {
+    }
-    /* should never happen */
-    SAFE_FREE(str);
-    return NULL;
-  }
 
-  return str;
+    stringlen = ssh_buffer_get_data(buffer, ssh_string_data(str), hostlen);
+    if (stringlen != hostlen) {
+        /* should never happen */
+        SAFE_FREE(str);
+        return NULL;
+    }
+
+    return str;
+}
+
+/**
+ * @brief Pre-calculate the size we need for packing the buffer.
+ *
+ * This makes sure that enough memory is allocated for packing the buffer and
+ * we only have to do one memory allocation.
+ *
+ * @param[in]  buffer    The buffer to allocate
+ *
+ * @param[in]  format    A format string of arguments.
+ *
+ * @param[in]  argc      The number of arguments.
+ *
+ * @param[in]  ap        The va_list of arguments.
+ *
+ * @return SSH_OK on success, SSH_ERROR on error.
+ */
+static int ssh_buffer_pack_allocate_va(struct ssh_buffer_struct *buffer,
+                                       const char *format,
+                                       size_t argc,
+                                       va_list ap)
+{
+    const char *p = NULL;
+    ssh_string string = NULL;
+    char *cstring = NULL;
+    size_t needed_size = 0;
+    size_t len;
+    size_t count;
+    int rc = SSH_OK;
+
+    for (p = format, count = 0; *p != '\0'; p++, count++) {
+        /* Invalid number of arguments passed */
+        if (count > argc) {
+            return SSH_ERROR;
+        }
+
+        switch(*p) {
+        case 'b':
+            va_arg(ap, unsigned int);
+            needed_size += sizeof(uint8_t);
+            break;
+        case 'w':
+            va_arg(ap, unsigned int);
+            needed_size += sizeof(uint16_t);
+            break;
+        case 'd':
+            va_arg(ap, uint32_t);
+            needed_size += sizeof(uint32_t);
+            break;
+        case 'q':
+            va_arg(ap, uint64_t);
+            needed_size += sizeof(uint64_t);
+            break;
+        case 'S':
+            string = va_arg(ap, ssh_string);
+            needed_size += 4 + ssh_string_len(string);
+            string = NULL;
+            break;
+        case 's':
+            cstring = va_arg(ap, char *);
+            needed_size += sizeof(uint32_t) + strlen(cstring);
+            cstring = NULL;
+            break;
+        case 'P':
+            len = va_arg(ap, size_t);
+            needed_size += len;
+            va_arg(ap, void *);
+            count++; /* increase argument count */
+            break;
+        case 'B':
+            va_arg(ap, bignum);
+            /*
+             * Use a fixed size for a bignum
+             * (they should normaly be around 32)
+             */
+            needed_size += 64;
+            break;
+        case 't':
+            cstring = va_arg(ap, char *);
+            needed_size += strlen(cstring);
+            cstring = NULL;
+            break;
+        default:
+            SSH_LOG(SSH_LOG_WARN, "Invalid buffer format %c", *p);
+            rc = SSH_ERROR;
+        }
+        if (rc != SSH_OK){
+            break;
+        }
+    }
+
+    if (argc != count) {
+        return SSH_ERROR;
+    }
+
+    if (rc != SSH_ERROR){
+        /*
+         * Check if our canary is intact, if not, something really bad happened.
+         */
+        uint32_t canary = va_arg(ap, uint32_t);
+        if (canary != SSH_BUFFER_PACK_END) {
+            abort();
+        }
+    }
+
+    rc = ssh_buffer_allocate_size(buffer, needed_size);
+    if (rc != 0) {
+        return SSH_ERROR;
+    }
+
+    return SSH_OK;
 }
 
 /** @internal
@@ -722,7 +914,7 @@ struct ssh_string_struct *ssh_buffer_get_ssh_string(struct ssh_buffer_struct *bu
  */
 int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
                        const char *format,
-                       int argc,
+                       size_t argc,
                        va_list ap)
 {
     int rc = SSH_ERROR;
@@ -738,11 +930,15 @@ int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
     char *cstring;
     bignum b;
     size_t len;
-    int count;
+    size_t count;
+
+    if (argc > 256) {
+        return SSH_ERROR;
+    }
 
     for (p = format, count = 0; *p != '\0'; p++, count++) {
         /* Invalid number of arguments passed */
-        if (argc != -1 && count > argc) {
+        if (count > argc) {
             return SSH_ERROR;
         }
 
@@ -814,7 +1010,7 @@ int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
         }
     }
 
-    if (argc != -1 && argc != count) {
+    if (argc != count) {
         return SSH_ERROR;
     }
 
@@ -822,11 +1018,7 @@ int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
         /* Check if our canary is intact, if not somthing really bad happened */
         uint32_t canary = va_arg(ap, uint32_t);
         if (canary != SSH_BUFFER_PACK_END) {
-            if (argc == -1){
+            abort();
-                return SSH_ERROR;
-            } else {
-                abort();
-            }
         }
     }
     return rc;
@@ -854,15 +1046,28 @@ int ssh_buffer_pack_va(struct ssh_buffer_struct *buffer,
  */
 int _ssh_buffer_pack(struct ssh_buffer_struct *buffer,
                      const char *format,
-                     int argc,
+                     size_t argc,
                      ...)
 {
     va_list ap;
     int rc;
 
+    if (argc > 256) {
+        return SSH_ERROR;
+    }
+
+    va_start(ap, argc);
+    rc = ssh_buffer_pack_allocate_va(buffer, format, argc, ap);
+    va_end(ap);
+
+    if (rc != SSH_OK) {
+        return rc;
+    }
+
     va_start(ap, argc);
     rc = ssh_buffer_pack_va(buffer, format, argc, ap);
     va_end(ap);
+
     return rc;
 }
 
@@ -893,7 +1098,7 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
     } o;
     size_t len, rlen, max_len;
     va_list ap_copy;
-    int count;
+    int count; /* int for size comparison with argc */
 
     max_len = ssh_buffer_get_len(buffer);
 
@@ -903,8 +1108,8 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
     for (p = format, count = 0; *p != '\0'; p++, count++) {
         /* Invalid number of arguments passed */
         if (argc != -1 && count > argc) {
-            va_end(ap_copy);
+            rc = SSH_ERROR;
-            return SSH_ERROR;
+            goto cleanup;
         }
 
         switch (*p) {
@@ -1016,8 +1221,9 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
         rc = SSH_ERROR;
     }
 
+cleanup:
     if (rc != SSH_ERROR){
-        /* Check if our canary is intact, if not somthing really bad happened */
+        /* Check if our canary is intact, if not something really bad happened */
         uint32_t canary = va_arg(ap, uint32_t);
         if (canary != SSH_BUFFER_PACK_END){
             if (argc == -1){
@@ -1034,22 +1240,53 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
         for(p=format;p<last;++p){
             switch(*p){
             case 'b':
+                o.byte = va_arg(ap_copy, uint8_t *);
+                if (buffer->secure) {
+                    explicit_bzero(o.byte, sizeof(uint8_t));
+                    break;
+                }
+                break;
             case 'w':
+                o.word = va_arg(ap_copy, uint16_t *);
+                if (buffer->secure) {
+                    explicit_bzero(o.word, sizeof(uint16_t));
+                    break;
+                }
+                break;
             case 'd':
+                o.dword = va_arg(ap_copy, uint32_t *);
+                if (buffer->secure) {
+                    explicit_bzero(o.dword, sizeof(uint32_t));
+                    break;
+                }
+                break;
             case 'q':
-                (void)va_arg(ap_copy, void *);
+                o.qword = va_arg(ap_copy, uint64_t *);
+                if (buffer->secure) {
+                    explicit_bzero(o.qword, sizeof(uint64_t));
+                    break;
+                }
                 break;
             case 'S':
-                o.string=va_arg(ap_copy, ssh_string *);
+                o.string = va_arg(ap_copy, ssh_string *);
+                if (buffer->secure) {
+                    ssh_string_burn(*o.string);
+                }
                 SAFE_FREE(*o.string);
                 break;
             case 's':
-                o.cstring=va_arg(ap_copy, char **);
+                o.cstring = va_arg(ap_copy, char **);
+                if (buffer->secure) {
+                    explicit_bzero(*o.cstring, strlen(*o.cstring));
+                }
                 SAFE_FREE(*o.cstring);
                 break;
             case 'P':
-                (void)va_arg(ap_copy, size_t);
+                len = va_arg(ap_copy, size_t);
                 o.data = va_arg(ap_copy, void **);
+                if (buffer->secure) {
+                    explicit_bzero(*o.data, len);
+                }
                 SAFE_FREE(*o.data);
                 break;
             default:

src/chachapoly.c

@@ -192,6 +192,7 @@ static void chacha20_cleanup(struct ssh_cipher_struct *cipher) {
 }
 
 const struct ssh_cipher_struct chacha20poly1305_cipher = {
+    .ciphertype = SSH_AEAD_CHACHA20_POLY1305,
     .name = "chacha20-poly1305@openssh.com",
     .blocksize = 8,
     .lenfield_blocksize = 4,

src/channels.c

@@ -76,44 +76,46 @@ static ssh_channel channel_from_msg(ssh_session session, ssh_buffer packet);
  *
  * @return              A pointer to a newly allocated channel, NULL on error.
  */
-ssh_channel ssh_channel_new(ssh_session session) {
+ssh_channel ssh_channel_new(ssh_session session)
-  ssh_channel channel = NULL;
+{
+    ssh_channel channel = NULL;
 
-  if(session == NULL) {
+    if (session == NULL) {
-      return NULL;
+        return NULL;
-  }
+    }
 
-  channel = malloc(sizeof(struct ssh_channel_struct));
+    channel = calloc(1, sizeof(struct ssh_channel_struct));
-  if (channel == NULL) {
+    if (channel == NULL) {
-    ssh_set_error_oom(session);
+        ssh_set_error_oom(session);
-    return NULL;
+        return NULL;
-  }
+    }
-  memset(channel,0,sizeof(struct ssh_channel_struct));
 
-  channel->stdout_buffer = ssh_buffer_new();
+    channel->stdout_buffer = ssh_buffer_new();
-  if (channel->stdout_buffer == NULL) {
+    if (channel->stdout_buffer == NULL) {
-    ssh_set_error_oom(session);
+        ssh_set_error_oom(session);
-    SAFE_FREE(channel);
+        SAFE_FREE(channel);
-    return NULL;
+        return NULL;
-  }
+    }
 
-  channel->stderr_buffer = ssh_buffer_new();
+    channel->stderr_buffer = ssh_buffer_new();
-  if (channel->stderr_buffer == NULL) {
+    if (channel->stderr_buffer == NULL) {
-    ssh_set_error_oom(session);
+        ssh_set_error_oom(session);
-    ssh_buffer_free(channel->stdout_buffer);
+        ssh_buffer_free(channel->stdout_buffer);
-    SAFE_FREE(channel);
+        SAFE_FREE(channel);
-    return NULL;
+        return NULL;
-  }
+    }
 
-  channel->session = session;
+    channel->session = session;
-  channel->exit_status = -1;
+    channel->exit_status = -1;
-  channel->flags = SSH_CHANNEL_FLAG_NOT_BOUND;
+    channel->flags = SSH_CHANNEL_FLAG_NOT_BOUND;
 
-  if(session->channels == NULL) {
+    if (session->channels == NULL) {
-    session->channels = ssh_list_new();
+        session->channels = ssh_list_new();
-  }
+    }
-  ssh_list_prepend(session->channels, channel);
+
-  return channel;
+    ssh_list_prepend(session->channels, channel);
+
+    return channel;
 }
 
 /**
@@ -169,6 +171,15 @@ SSH_PACKET_CALLBACK(ssh_packet_channel_open_conf){
       "Received a CHANNEL_OPEN_CONFIRMATION for channel %d:%d",
       channel->local_channel,
       channel->remote_channel);
+
+  if (channel->state != SSH_CHANNEL_STATE_OPENING) {
+      SSH_LOG(SSH_LOG_RARE,
+              "SSH2_MSG_CHANNEL_OPEN_CONFIRMATION received in incorrect "
+              "channel state %d",
+              channel->state);
+      goto error;
+  }
+
   SSH_LOG(SSH_LOG_PROTOCOL,
       "Remote window : %lu, maxpacket : %lu",
       (long unsigned int) channel->remote_window,
@@ -209,6 +220,14 @@ SSH_PACKET_CALLBACK(ssh_packet_channel_open_fail){
       return SSH_PACKET_USED;
   }
 
+  if (channel->state != SSH_CHANNEL_STATE_OPENING) {
+      SSH_LOG(SSH_LOG_RARE,
+              "SSH2_MSG_CHANNEL_OPEN_FAILURE received in incorrect channel "
+              "state %d",
+              channel->state);
+      goto error;
+  }
+
   ssh_set_error(session, SSH_REQUEST_DENIED,
       "Channel opening failure: channel %u error (%lu) %s",
       channel->local_channel,
@@ -217,6 +236,10 @@ SSH_PACKET_CALLBACK(ssh_packet_channel_open_fail){
   SAFE_FREE(error);
   channel->state=SSH_CHANNEL_STATE_OPEN_DENIED;
   return SSH_PACKET_USED;
+
+error:
+  ssh_set_error(session, SSH_FATAL, "Invalid packet");
+  return SSH_PACKET_USED;
 }
 
 static int ssh_channel_open_termination(void *c){
@@ -660,6 +683,10 @@ SSH_PACKET_CALLBACK(channel_rcv_request) {
 	if (strcmp(request,"exit-status") == 0) {
         SAFE_FREE(request);
         rc = ssh_buffer_unpack(packet, "d", &channel->exit_status);
+        if (rc != SSH_OK) {
+            SSH_LOG(SSH_LOG_PACKET, "Invalid exit-status packet");
+            return SSH_PACKET_USED;
+        }
         SSH_LOG(SSH_LOG_PACKET, "received exit-status %d", channel->exit_status);
 
         ssh_callbacks_execute_list(channel->callbacks,
@@ -1005,22 +1032,24 @@ void ssh_channel_free(ssh_channel channel) {
  * @brief Effectively free a channel, without caring about flags
  */
 
-void ssh_channel_do_free(ssh_channel channel){
+void ssh_channel_do_free(ssh_channel channel)
-  struct ssh_iterator *it;
+{
-  ssh_session session = channel->session;
+    struct ssh_iterator *it = NULL;
-  it = ssh_list_find(session->channels, channel);
+    ssh_session session = channel->session;
-  if(it != NULL){
-    ssh_list_remove(session->channels, it);
-  }
-  ssh_buffer_free(channel->stdout_buffer);
-  ssh_buffer_free(channel->stderr_buffer);
-  if (channel->callbacks != NULL){
-    ssh_list_free(channel->callbacks);
-  }
 
-  /* debug trick to catch use after frees */
+    it = ssh_list_find(session->channels, channel);
-  memset(channel, 'X', sizeof(struct ssh_channel_struct));
+    if (it != NULL) {
-  SAFE_FREE(channel);
+        ssh_list_remove(session->channels, it);
+    }
+
+    ssh_buffer_free(channel->stdout_buffer);
+    ssh_buffer_free(channel->stderr_buffer);
+
+    if (channel->callbacks != NULL) {
+        ssh_list_free(channel->callbacks);
+    }
+
+    SAFE_FREE(channel);
 }
 
 /**
@@ -1051,43 +1080,47 @@ void ssh_channel_do_free(ssh_channel channel){
  * @see ssh_channel_free()
  * @see ssh_channel_is_eof()
  */
-int ssh_channel_send_eof(ssh_channel channel){
+int ssh_channel_send_eof(ssh_channel channel)
-  ssh_session session;
+{
-  int rc = SSH_ERROR;
+    ssh_session session;
-  int err;
+    int rc = SSH_ERROR;
+    int err;
 
-  if(channel == NULL) {
+    if(channel == NULL) {
-      return rc;
+        return rc;
-  }
+    }
 
-  session = channel->session;
+    session = channel->session;
 
-  err = ssh_buffer_pack(session->out_buffer,
+    err = ssh_buffer_pack(session->out_buffer,
-                        "bd",
+                          "bd",
-                        SSH2_MSG_CHANNEL_EOF,
+                          SSH2_MSG_CHANNEL_EOF,
-                        channel->remote_channel);
+                          channel->remote_channel);
-  if (err != SSH_OK) {
+    if (err != SSH_OK) {
-    ssh_set_error_oom(session);
+        ssh_set_error_oom(session);
-    goto error;
+        goto error;
-  }
+    }
 
-  rc = ssh_packet_send(session);
+    rc = ssh_packet_send(session);
-  SSH_LOG(SSH_LOG_PACKET,
+    SSH_LOG(SSH_LOG_PACKET,
-      "Sent a EOF on client channel (%d:%d)",
+        "Sent a EOF on client channel (%d:%d)",
-      channel->local_channel,
+        channel->local_channel,
-      channel->remote_channel);
+        channel->remote_channel);
+    if (rc != SSH_OK) {
+        goto error;
+    }
 
-  rc = ssh_channel_flush(channel);
+    rc = ssh_channel_flush(channel);
-  if(rc == SSH_ERROR)
+    if (rc == SSH_ERROR) {
-    goto error;
+        goto error;
+    }
+    channel->local_eof = 1;
 
-  channel->local_eof = 1;
+    return rc;
-
-  return rc;
 error:
-  ssh_buffer_reinit(session->out_buffer);
+    ssh_buffer_reinit(session->out_buffer);
 
-  return rc;
+    return rc;
 }
 
 /**
@@ -2057,8 +2090,11 @@ static int ssh_global_request_termination(void *s){
  *                      SSH_AGAIN if in nonblocking mode and call has
  *                      to be done again.
  */
-static int global_request(ssh_session session, const char *request,
+int ssh_global_request(ssh_session session,
-    ssh_buffer buffer, int reply) {
+                       const char *request,
+                       ssh_buffer buffer,
+                       int reply)
+{
   int rc;
 
   switch (session->global_req_state) {
@@ -2189,7 +2225,7 @@ int ssh_channel_listen_forward(ssh_session session,
     goto error;
   }
 pending:
-  rc = global_request(session, "tcpip-forward", buffer, 1);
+  rc = ssh_global_request(session, "tcpip-forward", buffer, 1);
 
   /* TODO: FIXME no guarantee the last packet we received contains
    * that info */
@@ -2269,7 +2305,7 @@ int ssh_channel_cancel_forward(ssh_session session,
       goto error;
   }
 pending:
-  rc = global_request(session, "cancel-tcpip-forward", buffer, 1);
+  rc = ssh_global_request(session, "cancel-tcpip-forward", buffer, 1);
 
 error:
   ssh_buffer_free(buffer);
@@ -2631,7 +2667,11 @@ static int ssh_channel_read_termination(void *s){
  */
 int ssh_channel_read(ssh_channel channel, void *dest, uint32_t count, int is_stderr)
 {
-    return ssh_channel_read_timeout(channel, dest, count, is_stderr, -1);
+    return ssh_channel_read_timeout(channel,
+                                    dest,
+                                    count,
+                                    is_stderr,
+                                    SSH_TIMEOUT_DEFAULT);
 }
 
 /**
@@ -2661,7 +2701,7 @@ int ssh_channel_read_timeout(ssh_channel channel,
                              void *dest,
                              uint32_t count,
                              int is_stderr,
-                             int timeout)
+                             int timeout_ms)
 {
   ssh_session session;
   ssh_buffer stdbuf;
@@ -2711,18 +2751,28 @@ int ssh_channel_read_timeout(ssh_channel channel,
   ctx.buffer = stdbuf;
   ctx.count = 1;
 
-  if (timeout < 0) {
+  if (timeout_ms < SSH_TIMEOUT_DEFAULT) {
-      timeout = SSH_TIMEOUT_DEFAULT;
+      timeout_ms = SSH_TIMEOUT_INFINITE;
   }
 
   rc = ssh_handle_packets_termination(session,
-                                      timeout,
+                                      timeout_ms,
                                       ssh_channel_read_termination,
                                       &ctx);
   if (rc == SSH_ERROR){
     return rc;
   }
-  if (session->session_state == SSH_SESSION_STATE_ERROR){
+
+  /*
+   * If the channel is closed or in an error state, reading from it is an error
+   */
+  if (session->session_state == SSH_SESSION_STATE_ERROR) {
+      return SSH_ERROR;
+  }
+  if (channel->state == SSH_CHANNEL_STATE_CLOSED) {
+      ssh_set_error(session,
+                    SSH_FATAL,
+                    "Remote channel is closed.");
       return SSH_ERROR;
   }
   if (channel->remote_eof && ssh_buffer_get_len(stdbuf) == 0) {

src/client.c

@@ -180,7 +180,6 @@ int ssh_send_banner(ssh_session session, int server)
 
     if (server == 1) {
         if (session->opts.custombanner == NULL){
-            len = strlen(banner);
             session->serverbanner = strdup(banner);
             if (session->serverbanner == NULL) {
                 goto end;
@@ -250,6 +249,8 @@ static int dh_handshake(ssh_session session) {
       switch(session->next_crypto->kex_type){
         case SSH_KEX_DH_GROUP1_SHA1:
         case SSH_KEX_DH_GROUP14_SHA1:
+        case SSH_KEX_DH_GROUP16_SHA512:
+        case SSH_KEX_DH_GROUP18_SHA512:
           rc = ssh_client_dh_init(session);
           break;
 #ifdef HAVE_ECDH
@@ -295,7 +296,7 @@ static int dh_handshake(ssh_session session) {
 static int ssh_service_request_termination(void *s){
   ssh_session session = (ssh_session)s;
   if(session->session_state == SSH_SESSION_STATE_ERROR ||
-      session->auth_service_state != SSH_AUTH_SERVICE_SENT)
+      session->auth.service_state != SSH_AUTH_SERVICE_SENT)
     return 1;
   else
     return 0;
@@ -319,7 +320,7 @@ static int ssh_service_request_termination(void *s){
 int ssh_service_request(ssh_session session, const char *service) {
   int rc=SSH_ERROR;
 
-  if(session->auth_service_state != SSH_AUTH_SERVICE_NONE)
+  if(session->auth.service_state != SSH_AUTH_SERVICE_NONE)
     goto pending;
 
   rc = ssh_buffer_pack(session->out_buffer,
@@ -330,7 +331,7 @@ int ssh_service_request(ssh_session session, const char *service) {
       ssh_set_error_oom(session);
       return SSH_ERROR;
   }
-  session->auth_service_state=SSH_AUTH_SERVICE_SENT;
+  session->auth.service_state = SSH_AUTH_SERVICE_SENT;
   if (ssh_packet_send(session) == SSH_ERROR) {
     ssh_set_error(session, SSH_FATAL,
         "Sending SSH2_MSG_SERVICE_REQUEST failed.");
@@ -345,7 +346,7 @@ pending:
   if (rc == SSH_ERROR) {
       return SSH_ERROR;
   }
-  switch(session->auth_service_state){
+  switch(session->auth.service_state) {
   case SSH_AUTH_SERVICE_DENIED:
     ssh_set_error(session,SSH_FATAL,"ssh_auth_service request denied");
     break;
@@ -409,6 +410,14 @@ static void ssh_client_connection_callback(ssh_session session)
 
             ssh_packet_set_default_callbacks(session);
             session->session_state = SSH_SESSION_STATE_INITIAL_KEX;
+            rc = ssh_set_client_kex(session);
+            if (rc != SSH_OK) {
+                goto error;
+            }
+            rc = ssh_send_kex(session, 0);
+            if (rc < 0) {
+                goto error;
+            }
             set_status(session, 0.5f);
 
             break;
@@ -418,14 +427,19 @@ static void ssh_client_connection_callback(ssh_session session)
         case SSH_SESSION_STATE_KEXINIT_RECEIVED:
             set_status(session,0.6f);
             ssh_list_kex(&session->next_crypto->server_kex);
-            if (ssh_set_client_kex(session) < 0) {
+            if (session->next_crypto->client_kex.methods[0] == NULL) {
-                goto error;
+                /* in rekeying state if next_crypto client_kex is empty */
+                rc = ssh_set_client_kex(session);
+                if (rc != SSH_OK) {
+                    goto error;
+                }
+                rc = ssh_send_kex(session, 0);
+                if (rc < 0) {
+                    goto error;
+                }
             }
             if (ssh_kex_select_methods(session) == SSH_ERROR)
                 goto error;
-            if (ssh_send_kex(session, 0) < 0) {
-                goto error;
-            }
             set_status(session,0.8f);
             session->session_state=SSH_SESSION_STATE_DH;
             if (dh_handshake(session) == SSH_ERROR) {
@@ -479,8 +493,8 @@ static int ssh_connect_termination(void *user){
  * @param[in]  session  The ssh session to connect.
  *
  * @returns             SSH_OK on success, SSH_ERROR on error.
- * @returns 						SSH_AGAIN, if the session is in nonblocking mode,
+ * @returns             SSH_AGAIN, if the session is in nonblocking mode,
- * 											and call must be done again.
+ *                      and call must be done again.
  *
  * @see ssh_new()
  * @see ssh_disconnect()
@@ -512,6 +526,16 @@ int ssh_connect(ssh_session session) {
     return SSH_ERROR;
   }
 
+  /* If the system configuration files were not yet processed, do it now */
+  if (!session->opts.config_processed) {
+    ret = ssh_options_parse_config(session, NULL);
+    if (ret != 0) {
+      ssh_set_error(session, SSH_FATAL,
+                    "Failed to process system configuration files");
+      return SSH_ERROR;
+    }
+  }
+
   ret = ssh_options_apply(session);
   if (ret < 0) {
       ssh_set_error(session, SSH_FATAL, "Couldn't apply options");
@@ -700,7 +724,7 @@ error:
   if (session->out_hashbuf) {
     ssh_buffer_reinit(session->out_hashbuf);
   }
-  session->auth_methods = 0;
+  session->auth.supported_methods = 0;
   SAFE_FREE(session->serverbanner);
   SAFE_FREE(session->clientbanner);