chown: fix out-of-bounds ((null) bad address error)

Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>
2014-04-18 19:46:02 +02:00 · 2014-04-18 19:46:02 +02:00 · cd194d96ad
commit cd194d96ad
parent 1d5663672e
1 changed files with 2 additions and 0 deletions
--- a/chown.c
+++ b/chown.c
@ -32,11 +32,13 @@ main(int argc, char *argv[])
 	default:
 		usage();
 	} ARGEND;
+
 	if(argc == 0)
 		usage();

 	owner = argv[0];
 	argv++;
+	argc--;
 	if((group = strchr(owner, ':')))
 		*group++ = '\0';