diff options
Diffstat (limited to 'extensions/libipt_nth.c')
| -rw-r--r-- | extensions/libipt_nth.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/extensions/libipt_nth.c b/extensions/libipt_nth.c index 5fdd3625..efeb71bf 100644 --- a/extensions/libipt_nth.c +++ b/extensions/libipt_nth.c @@ -59,7 +59,7 @@ parse(int c, char **argv, int invert, unsigned int *flags, struct ipt_entry_match **match) { struct ipt_nth_info *nthinfo = (struct ipt_nth_info *)(*match)->data; - int num; + unsigned int num; switch (c) { case '1': @@ -79,8 +79,7 @@ parse(int c, char **argv, int invert, unsigned int *flags, /* Remember, this function will interpret a leading 0 to be Octal, a leading 0x to be hexdecimal... */ - num = string_to_number(optarg, 2, 100); - if (num < 2) + if (string_to_number(optarg, 2, 100, &num) == -1 || num < 2) exit_error(PARAMETER_PROBLEM, "bad --every `%s', must be between 2 and 100", optarg); @@ -110,8 +109,7 @@ parse(int c, char **argv, int invert, unsigned int *flags, if (*flags & IPT_NTH_OPT_START) exit_error(PARAMETER_PROBLEM, "Can't specify --start twice"); - num = string_to_number(optarg, 0, nthinfo->every); - if (num < 0) + if (string_to_number(optarg, 0, nthinfo->every, &num) == -1) exit_error(PARAMETER_PROBLEM, "bad --start `%s', must between 0 and %u", optarg, nthinfo->every); *flags |= IPT_NTH_OPT_START; |