diff options
Diffstat (limited to 'userspace/ebtables2/useful_functions.c')
| -rw-r--r-- | userspace/ebtables2/useful_functions.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/userspace/ebtables2/useful_functions.c b/userspace/ebtables2/useful_functions.c index e0b1e4c..a36062e 100644 --- a/userspace/ebtables2/useful_functions.c +++ b/userspace/ebtables2/useful_functions.c @@ -151,6 +151,8 @@ int ebt_invert = 0; */ int ebt_check_inverse(const char option[]) { + if (!option) + return ebt_invert; if (strcmp(option, "!") == 0) { if (ebt_invert == 1) ebt_print_error("double use of '!' not allowed"); |