sbase

commit 30620afb6c6c75e14ebd9de876114f88a83f0355
parent 5be9c21ce43b028fb27b51cb7a7c02e05736f002
Author: sin <sin@2f30.org>
Date:   Fri, 24 Jan 2014 16:17:39 +0000

Check return value of snprintf in mktemp(1)

Diffstat:
M
mktemp.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mktemp.c b/mktemp.c
@@ -42,7 +42,8 @@ main(int argc, char *argv[])
 	if ((p = getenv("TMPDIR")))
 		tmpdir = p;
 
-	snprintf(tmppath, sizeof(tmppath), "%s/%s", tmpdir, template);
+	if (snprintf(tmppath, sizeof(tmppath), "%s/%s", tmpdir, template) >= sizeof(tmppath))
+		eprintf(EXIT_FAILURE, "path too long\n");
 	if (dflag) {
 		if (!mkdtemp(tmppath)) {
 			if (!qflag)