swc

commit 6241c397132b3792e6d03fb8b0d01f56d5b0a28a
parent 7e4243e786ae9a55a7627358a321aed83287e5e0
Author: Michael Forney <mforney@mforney.org>
Date:   Sat,  2 Aug 2014 10:49:03 -0700

launch: Die if setuid or setgid fails

Diffstat:
M
launch/launch.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/launch/launch.c b/launch/launch.c
@@ -508,8 +508,8 @@ int main(int argc, char * argv[])
         sprintf(string, "%d", launcher.tty_fd);
         setenv(SWC_LAUNCH_TTY_FD_ENV, string, 1);
 
-        setuid(getuid());
-        setgid(getgid());
+        if (setuid(getuid()) != 0 || setgid(getgid()) != 0)
+            die("Failed to drop permission before executing display server");
 
         execvp(argv[optind], argv + optind);
         die("Could not exec %s", argv[optind]);