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2e0b2e2e91
git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@763 7dcaeef0-15fb-0310-b436-a5af3365683c
153 lines
3.3 KiB
C
153 lines
3.3 KiB
C
/*
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* misc.c - useful client functions
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*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2003 by Aris Adamantiadis
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* Copyright (c) 2008-2009 by Andreas Schneider <mail@cynapses.org>
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*
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* The SSH Library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The SSH Library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the SSH Library; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*/
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#include <limits.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include "config.h"
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#ifdef _WIN32
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#define _WIN32_IE 0x0400 //SHGetSpecialFolderPath
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#include <shlobj.h>
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#include <winsock2.h>
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#else
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#include <pwd.h>
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#endif
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#include "libssh/priv.h"
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#ifdef HAVE_LIBGCRYPT
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#define GCRYPT_STRING "/gnutls"
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#else
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#define GCRYPT_STRING ""
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#endif
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#ifdef HAVE_LIBCRYPTO
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#define CRYPTO_STRING "/openssl"
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#else
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#define CRYPTO_STRING ""
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#endif
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#if defined(HAVE_LIBZ) && defined(WITH_LIBZ)
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#define LIBZ_STRING "/zlib"
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#else
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#define LIBZ_STRING ""
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#endif
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/** \defgroup ssh_misc SSH Misc
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* \brief Misc functions
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*/
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/** \addtogroup ssh_misc
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* @{ */
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#ifdef _WIN32
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char *ssh_get_user_home_dir(void) {
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static char szPath[MAX_PATH] = {0};
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if (SHGetSpecialFolderPathA(NULL, szPath, CSIDL_PROFILE, TRUE)) {
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return szPath;
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}
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return NULL;
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}
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#else /* _WIN32 */
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char *ssh_get_user_home_dir(void) {
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static char szPath[PATH_MAX] = {0};
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struct passwd *pwd = NULL;
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pwd = getpwuid(getuid());
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if (pwd == NULL) {
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return NULL;
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}
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snprintf(szPath, PATH_MAX - 1, "%s", pwd->pw_dir);
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return szPath;
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}
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#endif
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/* we have read access on file */
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int ssh_file_readaccess_ok(const char *file) {
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if (access(file, R_OK) < 0) {
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return 0;
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}
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return 1;
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}
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u64 ntohll(u64 a) {
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#ifdef WORDS_BIGENDIAN
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return a;
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#else
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u32 low = a & 0xffffffff;
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u32 high = a >> 32 ;
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low = ntohl(low);
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high = ntohl(high);
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return ((((u64) low) << 32) | ( high));
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#endif
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}
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/**
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* @brief Check if libssh is the required version or get the version
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* string.
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*
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* @param req_version The version required.
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*
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* @return If the version of libssh is newer than the version
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* required it will return a version string.
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* NULL if the version is older.
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*
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* Example:
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*
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* @code
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* if (ssh_version(SSH_VERSION_INT(0,2,1)) == NULL) {
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* fprintf(stderr, "libssh version is too old!\n");
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* exit(1);
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* }
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*
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* if (debug) {
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* printf("libssh %s\n", ssh_version(0));
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* }
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* @endcode
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*/
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const char *ssh_version(int req_version) {
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if (req_version <= LIBSSH_VERSION_INT) {
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return SSH_STRINGIFY(LIBSSH_VERSION) GCRYPT_STRING CRYPTO_STRING
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LIBZ_STRING;
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}
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return NULL;
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}
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/** @} */
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/* vim: set ts=2 sw=2 et cindent: */
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