path: root/extensions/libip6t_ipv6header.c
diff options
authorJan Engelhardt <>2009-10-24 00:45:33 +0200
committerJan Engelhardt <>2009-11-03 21:54:20 +0100
commitbbe83862a5e1baf15f7c923352d4afdf59bc70e2 (patch)
tree790bfd0d6a47968e6c1ed6b2f681ec5578728463 /extensions/libip6t_ipv6header.c
parentbf97128c7262f17a02fec41cdae75b472ba77f88 (diff)
iptables/extensions: make bundled options work again
When using a bundled option like "-ptcp", 'argv[optind-1]' would logically point to "-ptcp", but this is obviously not right. 'optarg' is needed instead, which if properly offset to "tcp". Not all places change optind-based access to optarg; where look-ahead is needed, such as for tcp's --tcp-flags option for example, optind is ok. References: Signed-off-by: Jan Engelhardt <>
Diffstat (limited to 'extensions/libip6t_ipv6header.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/libip6t_ipv6header.c b/extensions/libip6t_ipv6header.c
index 4a4e1df6..af1f5ef6 100644
--- a/extensions/libip6t_ipv6header.c
+++ b/extensions/libip6t_ipv6header.c
@@ -187,7 +187,7 @@ ipv6header_parse(int c, char **argv, int invert, unsigned int *flags,
xtables_check_inverse(optarg, &invert, &optind, 0, argv);
- if (! (info->matchflags = parse_header(argv[optind-1])) )
+ if (! (info->matchflags = parse_header(optarg)) )
xtables_error(PARAMETER_PROBLEM, "ip6t_ipv6header: cannot parse header names");
if (invert)