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authorRonny Chevalier <chevalier.ronny@gmail.com>2014-11-09 15:42:23 +0100
committerDavid Herrmann <dh.herrmann@gmail.com>2014-11-16 19:38:08 +0100
commitc9732bae8f29be644e7b4b1cc4f738ef85477c72 (patch)
tree5e2efdff4f2af5143fc284dd923eb5a63ba21282 /src/udev/collect
parent8e24a4f8b6f53883ea515ae8f27fb6b1795973b4 (diff)
udev: silence TOCTOU warning when creating a directory
CID#979416. There is no real race here to fix, but lets make coverity happy and rework the code. Note that we still fail if the directory is removed _after_ we ran mkdir(), so the same race is still there. Coverity is complaining, though. Rewrite the code to make it happy. (David: rewrote the commit-message to note that this is not a race. If I'm wrong, blame me, not Ronny!)
Diffstat (limited to 'src/udev/collect')
-rw-r--r--src/udev/collect/collect.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/udev/collect/collect.c b/src/udev/collect/collect.c
index dc849bd0f0..90df360eb2 100644
--- a/src/udev/collect/collect.c
+++ b/src/udev/collect/collect.c
@@ -86,12 +86,12 @@ static void usage(void)
*/
static int prepare(char *dir, char *filename)
{
- struct stat statbuf;
char buf[512];
- int fd;
+ int r, fd;
- if (stat(dir, &statbuf) < 0)
- mkdir(dir, 0700);
+ r = mkdir(dir, 0700);
+ if (r < 0 && errno != EEXIST)
+ return -errno;
snprintf(buf, sizeof(buf), "%s/%s", dir, filename);