diff options
Diffstat (limited to 'extensions/libip6t_icmp6.c')
| -rw-r--r-- | extensions/libip6t_icmp6.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/extensions/libip6t_icmp6.c b/extensions/libip6t_icmp6.c index a29bb38..6940d0e 100644 --- a/extensions/libip6t_icmp6.c +++ b/extensions/libip6t_icmp6.c @@ -164,11 +164,15 @@ parse(int c, char **argv, int invert, unsigned int *flags, switch (c) { case '1': + if (*flags == 1) + exit_error(PARAMETER_PROBLEM, + "icmpv6 match: only use --icmpv6-type once!"); check_inverse(optarg, &invert, &optind, 0); parse_icmpv6(argv[optind-1], &icmpv6info->type, icmpv6info->code); if (invert) icmpv6info->invflags |= IP6T_ICMP_INV; + *flags = 1; break; default: @@ -247,9 +251,11 @@ static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match printf(" "); } -/* Final check; we don't care. */ static void final_check(unsigned int flags) { + if (!flags) + exit_error(PARAMETER_PROBLEM, + "icmpv6 match: You must specify `--icmpv6-type'"); } static struct ip6tables_match icmpv6 = { |