From e42af110fc91c0ecdeb1cf47e014b4fc04757c44 Mon Sep 17 00:00:00 2001
From: Tobias Nygren <tnn@nygren.pp.se>
Date: Wed, 22 Jul 2020 21:26:21 +0200
Subject: [PATCH] add stubs of missing libc functions

---
 components/libssh/compat/netinet/tcp.h |  1 +
 components/libssh/compat/poll.h        |  2 ++
 components/libssh/compat/stubs.h       | 31 ++++++++++++++++++++++++++
 3 files changed, 34 insertions(+)
 create mode 100644 components/libssh/compat/netinet/tcp.h
 create mode 100644 components/libssh/compat/poll.h
 create mode 100644 components/libssh/compat/stubs.h

diff --git a/components/libssh/compat/netinet/tcp.h b/components/libssh/compat/netinet/tcp.h
new file mode 100644
index 0000000..d24e8f3
--- /dev/null
+++ b/components/libssh/compat/netinet/tcp.h
@@ -0,0 +1 @@
+/* lwip doesn't provide this file */
diff --git a/components/libssh/compat/poll.h b/components/libssh/compat/poll.h
new file mode 100644
index 0000000..a528150
--- /dev/null
+++ b/components/libssh/compat/poll.h
@@ -0,0 +1,2 @@
+/* esp-idf has <sys/poll.h> but not <poll.h> */
+#include <sys/poll.h>
diff --git a/components/libssh/compat/stubs.h b/components/libssh/compat/stubs.h
new file mode 100644
index 0000000..a1a59d2
--- /dev/null
+++ b/components/libssh/compat/stubs.h
@@ -0,0 +1,31 @@
+#include <net/if.h>
+#include <pwd.h>
+#include <glob.h>
+
+#if !defined(GLOB_NOMATCH)
+#define GLOB_NOMATCH -3
+#endif
+
+#define gai_strerror(ecode) "unknown error"
+#define getuid() getuid_stub() (uid_t)0
+
+static inline int getpwuid_r_stub(struct passwd **result) { errno = ENOENT; *result = NULL; return 1; }
+#define getpwuid_r(uid,passwd,buffer,buflen,result) getpwuid_r_stub(result)
+
+static inline struct passwd *getpwnam_stub() { errno = ENOENT; return NULL; }
+#define getpwnam(name) getpwnam_stub()
+
+static inline int gethostname_stub(char *name, size_t namelen) {strlcpy(name, "esp32", namelen); return 0; }
+#define gethostname(name, namelen) gethostname_stub(name, namelen)
+
+static inline pid_t waitpid_stub() { errno = ENOSYS; return (pid_t)-1; }
+#define waitpid(pid,status,options) waitpid_stub()
+
+static inline int glob_stub() { errno = ENOENT; return GLOB_NOMATCH; }
+#define glob(pattern, flags, errfunc, pglob) glob_stub()
+
+#define globfree(pglob) do { } while(0)
+
+
+static inline int socketpair_stub() { errno = ENOSYS; return -1; }
+#define socketpair(d, type, protocol, sv) socketpair_stub()