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Add sftp_extension_supported() function.

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This commit is contained in:
Andreas Schneider
2009-08-12 17:12:26 +02:00
parent 63011c29a0
commit 2dc3b5c675
3 changed files with 96 additions and 76 deletions
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20
include/libssh/sftp.h
View File

@@ -261,6 +261,26 @@ LIBSSH_API const char *sftp_extensions_get_name(SFTP_SESSION *sftp, unsigned int
*/
LIBSSH_API const char *sftp_extensions_get_data(SFTP_SESSION *sftp, unsigned int index);
/**
* @brief Check if the given extension is supported.
*
* @param sftp The sftp session to use.
*
* @param name The name of the extension.
*
* @param data The data of the extension.
*
* @return 1 if supported, 0 if not.
*
* Example:
*
* @code
* sftp_extension_supported(sftp, "statvfs@openssh.com", "2");
* @endcode
*/
LIBSSH_API int sftp_extension_supported(SFTP_SESSION *sftp, const char *name,
const char *data);
/**
* @brief Open a directory used to obtain directory entries.
*

32
libssh/sftp.c
View File

@@ -45,12 +45,6 @@
#define sftp_leave_function() _leave_function(sftp->channel->session)
struct sftp_ext_struct {
int rename_openssh;
int rename_openssh_version;
int statvfs_openssh;
int statvfs_openssh_version;
int fstatvfs_openssh;
int fstatvfs_openssh_version;
unsigned int count;
char **name;
char **data;
@@ -536,17 +530,6 @@ int sftp_init(SFTP_SESSION *sftp) {
"SFTP server extension: %s, version: %s",
ext_name, ext_data);
if (strcmp(ext_name, "posix-rename@openssh.com") == 0) {
sftp->ext->rename_openssh = 1;
sftp->ext->rename_openssh_version = strtol(ext_data, (char **) NULL, 10);
} else if (strcmp(ext_name, "statvfs@openssh.com") == 0) {
sftp->ext->statvfs_openssh = 1;
sftp->ext->statvfs_openssh_version = strtol(ext_data, (char **) NULL, 10);
} else if (strcmp(ext_name, "fstatvfs@openssh.com") == 0) {
sftp->ext->fstatvfs_openssh = 1;
sftp->ext->fstatvfs_openssh_version = strtol(ext_data, (char **) NULL, 10);
}
count++;
tmp = realloc(sftp->ext->name, count * sizeof(char *));
if (tmp == NULL) {
@@ -619,6 +602,21 @@ const char *sftp_extensions_get_data(SFTP_SESSION *sftp, unsigned int index) {
return sftp->ext->data[index];
}
int sftp_extension_supported(SFTP_SESSION *sftp, const char *name,
const char *data) {
int i, n;
n = sftp_extensions_get_count(sftp);
for (i = 0; i < n; i++) {
if (strcmp(sftp_extensions_get_name(sftp, i), name) == 0 &&
strcmp(sftp_extensions_get_data(sftp, i), data) == 0) {
return 1;
}
}
return 0;
}
static REQUEST_QUEUE *request_queue_new(SFTP_MESSAGE *msg) {
REQUEST_QUEUE *queue = NULL;

120
sample.c
View File

@@ -327,67 +327,69 @@ void do_sftp(SSH_SESSION *session){
sftp_unlink(sftp_session, "/tmp/sftp_symlink_test");
sftpstatvfs = sftp_statvfs(sftp_session, "/tmp");
if (sftpstatvfs == NULL) {
fprintf(stderr, "statvfs failed (%s)\n", ssh_get_error(session));
return;
if (sftp_extension_supported(sftp_session, "statvfs@openssh.com", "2")) {
sftpstatvfs = sftp_statvfs(sftp_session, "/tmp");
if (sftpstatvfs == NULL) {
fprintf(stderr, "statvfs failed (%s)\n", ssh_get_error(session));
return;
}
printf("sftp statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
sftpstatvfs->f_bsize,
sftpstatvfs->f_frsize,
sftpstatvfs->f_blocks,
sftpstatvfs->f_bfree,
sftpstatvfs->f_bavail,
sftpstatvfs->f_files,
sftpstatvfs->f_ffree,
sftpstatvfs->f_favail,
sftpstatvfs->f_fsid,
sftpstatvfs->f_flag,
sftpstatvfs->f_namemax);
sftp_statvfs_free(sftpstatvfs);
if (statvfs("/tmp", &sysstatvfs) < 0) {
fprintf(stderr, "statvfs failed (%s)\n", strerror(errno));
return;
}
printf("sys statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
sysstatvfs.f_bsize,
sysstatvfs.f_frsize,
sysstatvfs.f_blocks,
sysstatvfs.f_bfree,
sysstatvfs.f_bavail,
sysstatvfs.f_files,
sysstatvfs.f_ffree,
sysstatvfs.f_favail,
sysstatvfs.f_fsid,
sysstatvfs.f_flag,
sysstatvfs.f_namemax);
}
printf("sftp statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
sftpstatvfs->f_bsize,
sftpstatvfs->f_frsize,
sftpstatvfs->f_blocks,
sftpstatvfs->f_bfree,
sftpstatvfs->f_bavail,
sftpstatvfs->f_files,
sftpstatvfs->f_ffree,
sftpstatvfs->f_favail,
sftpstatvfs->f_fsid,
sftpstatvfs->f_flag,
sftpstatvfs->f_namemax);
sftp_statvfs_free(sftpstatvfs);
if (statvfs("/tmp", &sysstatvfs) < 0) {
fprintf(stderr, "statvfs failed (%s)\n", strerror(errno));
return;
}
printf("sys statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
sysstatvfs.f_bsize,
sysstatvfs.f_frsize,
sysstatvfs.f_blocks,
sysstatvfs.f_bfree,
sysstatvfs.f_bavail,
sysstatvfs.f_files,
sysstatvfs.f_ffree,
sysstatvfs.f_favail,
sysstatvfs.f_fsid,
sysstatvfs.f_flag,
sysstatvfs.f_namemax);
/* the connection is made */
/* opening a directory */
dir=sftp_opendir(sftp_session,"./");