diff options
Diffstat (limited to 'ip6tables.c')
| -rw-r--r-- | ip6tables.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ip6tables.c b/ip6tables.c index 84908ebf..b8449f6e 100644 --- a/ip6tables.c +++ b/ip6tables.c @@ -1573,6 +1573,10 @@ int do_command6(int argc, char *argv[], char **table, struct ip6tc_handle **hand case 'i': + if (*optarg == '\0') + xtables_error(PARAMETER_PROBLEM, + "Empty interface is likely to be " + "undesired"); xtables_check_inverse(optarg, &invert, &optind, argc, argv); set_option(&options, OPT_VIANAMEIN, &fw.ipv6.invflags, invert); @@ -1582,6 +1586,10 @@ int do_command6(int argc, char *argv[], char **table, struct ip6tc_handle **hand break; case 'o': + if (*optarg == '\0') + xtables_error(PARAMETER_PROBLEM, + "Empty interface is likely to be " + "undesired"); xtables_check_inverse(optarg, &invert, &optind, argc, argv); set_option(&options, OPT_VIANAMEOUT, &fw.ipv6.invflags, invert); |