xkb: check permissions on XKM_OUTPUT_DIR

Checking just for root is insufficient since that does not guarantee write/read
permissions in XKM_OUTPUT_DIR (for example with sandbox).

Check if we can write a file, as well as read it later. Otherwise, invoke the
fallback to /tmp

Signed-off-by: Nirbheek Chauhan <nirbheek@gentoo.org>
Signed-off-by: Rémi Cardona <remi@gentoo.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Nirbheek Chauhan 2009-09-29 22:35:06 +05:30 committed by Peter Hutterer
parent 622fc98fd0
commit 9bc7cbf9c0

View File

@ -158,10 +158,9 @@ OutputDirectory(
size_t size) size_t size)
{ {
#ifndef WIN32 #ifndef WIN32
if (getuid() == 0 && (strlen(XKM_OUTPUT_DIR) < size)) /* Can we write an xkm and then open it too? */
if (access(XKM_OUTPUT_DIR, W_OK | X_OK) == 0 && (strlen(XKM_OUTPUT_DIR) < size))
{ {
/* if server running as root it *may* be able to write */
/* FIXME: check whether directory is writable at all */
(void) strcpy (outdir, XKM_OUTPUT_DIR); (void) strcpy (outdir, XKM_OUTPUT_DIR);
} else } else
#else #else