andreacavalli/xserver-multidpi
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os: Make sure that writing our pid to the lock file actually worked

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There's no sense verifying that we can create the lock file and then
ignoring the return value from write.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
This commit is contained in:
Keith Packard 2014-04-18 15:05:00 -07:00
parent d72f691c0c
commit 7abd286850
1 changed files with 2 additions and 1 deletions
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3
os/utils.c
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@ -313,7 +313,8 @@ LockServer(void)
if (lfd < 0)
FatalError("Could not create lock file in %s\n", tmp);
snprintf(pid_str, sizeof(pid_str), "%10ld\n", (long) getpid());
(void) write(lfd, pid_str, 11);
if (write(lfd, pid_str, 11) != 11)
FatalError("Could not write pid to lock file in %s\n", tmp);
(void) fchmod(lfd, 0444);
(void) close(lfd);