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openssh-portable
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- (djm) OpenBSD CVS Sync 

- deraadt@cvs.openbsd.org 2003/03/26 04:02:51
     [sftp-server.c]
     one last fix to the tree: race fix broke stuff; pr 3169;
     srp@srparish.net, help from djm
This commit is contained in:
Damien Miller 2003-03-26 16:01:11 +11:00
parent 68d893dfed
commit b3207e8061
2 changed files with 28 additions and 10 deletions
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9
ChangeLog
View File

@ -1,3 +1,10 @@
20030326
- (djm) OpenBSD CVS Sync
- deraadt@cvs.openbsd.org 2003/03/26 04:02:51
[sftp-server.c]
one last fix to the tree: race fix broke stuff; pr 3169;
srp@srparish.net, help from djm
20030325
- (djm) Fix getpeerid support for 64 bit BE systems. From
Arnd Bergmann <arndb@de.ibm.com>
@ -1252,4 +1259,4 @@
save auth method before monitor_reset_key_state(); bugzilla bug #284;
ok provos@
$Id: ChangeLog,v 1.2641 2003/03/24 22:07:52 djm Exp $
$Id: ChangeLog,v 1.2642 2003/03/26 05:01:11 djm Exp $

29
sftp-server.c
View File

@ -22,7 +22,7 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
RCSID("$OpenBSD: sftp-server.c,v 1.40 2003/03/05 22:33:43 markus Exp $");
RCSID("$OpenBSD: sftp-server.c,v 1.41 2003/03/26 04:02:51 deraadt Exp $");
#include "buffer.h"
#include "bufaux.h"
@ -836,20 +836,31 @@ process_rename(void)
u_int32_t id;
char *oldpath, *newpath;
int status;
struct stat sb;
id = get_int();
oldpath = get_string(NULL);
newpath = get_string(NULL);
TRACE("rename id %u old %s new %s", id, oldpath, newpath);
/* fail if 'newpath' exists */
if (link(oldpath, newpath) == -1)
status = SSH2_FX_FAILURE;
if (lstat(oldpath, &sb) == -1)
status = errno_to_portable(errno);
else if (unlink(oldpath) == -1) {
status = errno_to_portable(errno);
/* clean spare link */
unlink(newpath);
} else
status = SSH2_FX_OK;
else if (S_ISREG(sb.st_mode)) {
/* Race-free rename of regular files */
if (link(oldpath, newpath) == -1)
status = errno_to_portable(errno);
else if (unlink(oldpath) == -1) {
status = errno_to_portable(errno);
/* clean spare link */
unlink(newpath);
} else
status = SSH2_FX_OK;
} else if (stat(newpath, &sb) == -1) {
if (rename(oldpath, newpath) == -1)
status = errno_to_portable(errno);
else
status = SSH2_FX_OK;
}
send_status(id, status);
xfree(oldpath);
xfree(newpath);