From: Thomas Nikolajsen <thomas@dragonflybsd.org>
Date: Tue, 27 Sep 2011 05:35:01 +0000 (+0200)
Subject: hammer(8): snaprm: fix edge case
X-Git-Tag: v2.12.0~5
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/a6d893d9e53dc2830dcbed0a810494dc21d52a91

hammer(8): snaprm: fix edge case

Ensure that @@transid is at end of symlink.
---

diff --git a/sbin/hammer/cmd_snapshot.c b/sbin/hammer/cmd_snapshot.c
index 50c7321aa0..ea9cdce3c6 100644
--- a/sbin/hammer/cmd_snapshot.c
+++ b/sbin/hammer/cmd_snapshot.c
@@ -296,8 +296,7 @@ hammer_cmd_snaprm(char **av, int ac)
 				mode = path_m;
 			}
 			if (delete && (ptr = strrchr(linkbuf, '@')) &&
-			    ptr > linkbuf && ptr[-1] == '@' &&
-			    ptr + 1 < linkbuf + sizeof(linkbuf) - 1) {
+			    ptr > linkbuf && ptr[-1] == '@' && ptr[1]) {
 				tid = strtoull(ptr + 1, &ptr2, 16);
 				if (*ptr2 == '\0') {
 					snapshot_del(fsfd, tid);