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support for setstat on server

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Signed-off-by: Abdelrahman Youssef <abdelrahmanyossef12@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Abdelrahman Youssef
2024-04-11 13:30:33 +02:00
committed by Sahana Prasad
parent 3809db771d
commit 21627509f5
2 changed files with 199 additions and 1 deletions
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109
src/sftpserver.c
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@@ -31,10 +31,19 @@
#include <dirent.h>
#include <sys/statvfs.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif /* HAVE_SYS_TIME_H */
#ifdef HAVE_SYS_UTIME_H
#include <sys/utime.h>
#endif /* HAVE_SYS_UTIME_H */
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include "libssh/libssh.h"
@@ -829,6 +838,7 @@ SSH_SFTP_CALLBACK(process_readlink);
SSH_SFTP_CALLBACK(process_symlink);
SSH_SFTP_CALLBACK(process_remove);
SSH_SFTP_CALLBACK(process_extended_statvfs);
SSH_SFTP_CALLBACK(process_setstat);
const struct sftp_message_handler message_handlers[] = {
{"open", NULL, SSH_FXP_OPEN, process_open},
@@ -837,7 +847,7 @@ const struct sftp_message_handler message_handlers[] = {
{"write", NULL, SSH_FXP_WRITE, process_write},
{"lstat", NULL, SSH_FXP_LSTAT, process_lstat},
{"fstat", NULL, SSH_FXP_FSTAT, process_unsupposed},
{"setstat", NULL, SSH_FXP_SETSTAT, process_unsupposed},
{"setstat", NULL, SSH_FXP_SETSTAT, process_setstat},
{"fsetstat", NULL, SSH_FXP_FSETSTAT, process_unsupposed},
{"opendir", NULL, SSH_FXP_OPENDIR, process_opendir},
{"readdir", NULL, SSH_FXP_READDIR, process_readdir},
@@ -1437,6 +1447,103 @@ process_stat(sftp_client_message client_msg)
return ret;
}
static int
process_setstat(sftp_client_message client_msg)
{
int rv;
int ret = SSH_OK;
int status = SSH_FX_OK;
uint32_t msg_flags = client_msg->attr->flags;
const char *filename = sftp_client_message_get_filename(client_msg);
SSH_LOG(SSH_LOG_PROTOCOL, "Processing setstat %s", filename);
if (filename == NULL) {
sftp_reply_status(client_msg, SSH_FX_NO_SUCH_FILE, "File name error");
return SSH_ERROR;
}
if (msg_flags & SSH_FILEXFER_ATTR_SIZE) {
rv = truncate(filename, client_msg->attr->size);
if (rv < 0) {
int saved_errno = errno;
SSH_LOG(SSH_LOG_PROTOCOL,
"changing size failed: %s",
strerror(saved_errno));
status = unix_errno_to_ssh_stat(saved_errno);
sftp_reply_status(client_msg, status, NULL);
return rv;
}
}
if (msg_flags & SSH_FILEXFER_ATTR_PERMISSIONS) {
rv = chmod(filename, client_msg->attr->permissions);
if (rv < 0) {
int saved_errno = errno;
SSH_LOG(SSH_LOG_PROTOCOL,
"chmod failed: %s",
strerror(saved_errno));
status = unix_errno_to_ssh_stat(saved_errno);
sftp_reply_status(client_msg, status, NULL);
return rv;
}
}
if (msg_flags & SSH_FILEXFER_ATTR_UIDGID) {
rv = chown(filename, client_msg->attr->uid, client_msg->attr->gid);
if (rv < 0) {
int saved_errno = errno;
SSH_LOG(SSH_LOG_PROTOCOL,
"chwon failed: %s",
strerror(saved_errno));
status = unix_errno_to_ssh_stat(saved_errno);
sftp_reply_status(client_msg, status, NULL);
return rv;
}
}
if (msg_flags & SSH_FILEXFER_ATTR_ACMODTIME) {
#ifdef HAVE_SYS_TIME_H
struct timeval tv[2];
tv[0].tv_sec = client_msg->attr->atime;
tv[0].tv_usec = 0;
tv[1].tv_sec = client_msg->attr->mtime;
tv[1].tv_usec = 0;
rv = utimes(filename, tv);
if (rv < 0) {
int saved_errno = errno;
SSH_LOG(SSH_LOG_PROTOCOL,
"utimes failed: %s",
strerror(saved_errno));
status = unix_errno_to_ssh_stat(saved_errno);
sftp_reply_status(client_msg, status, NULL);
return rv;
}
#else
struct _utimbuf tf;
tf.actime = client_msg->attr->atime;
tf.modtime = client_msg->attr->mtime;
rv = _utime(filename, &tf);
if (rv < 0) {
int saved_errno = errno;
SSH_LOG(SSH_LOG_PROTOCOL,
"utimes failed: %s",
strerror(saved_errno));
status = unix_errno_to_ssh_stat(saved_errno);
sftp_reply_status(client_msg, status, NULL);
return rv;
}
#endif
}
sftp_reply_status(client_msg, status, NULL);
return ret;
}
static int
process_readlink(sftp_client_message client_msg)
{