diff options
Diffstat (limited to 'extensions/libxt_limit.c')
| -rw-r--r-- | extensions/libxt_limit.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/extensions/libxt_limit.c b/extensions/libxt_limit.c index b15b02f2..023500cf 100644 --- a/extensions/libxt_limit.c +++ b/extensions/libxt_limit.c @@ -3,6 +3,7 @@ * Jérôme de Vivie <devivie@info.enserb.u-bordeaux.fr> * Hervé Eychenne <rv@wallfire.org> */ +#include <math.h> #include <stdio.h> #include <string.h> #include <stdlib.h> @@ -64,12 +65,13 @@ int parse_rate(const char *rate, uint32_t *val) if (!r) return 0; - /* This would get mapped to infinite (1/day is minimum they - can specify, so we're ok at that end). */ - if (r / mult > XT_LIMIT_SCALE) - xtables_error(PARAMETER_PROBLEM, "Rate too fast \"%s\"\n", rate); - *val = XT_LIMIT_SCALE * mult / r; + if (*val == 0) + /* + * The rate maps to infinity. (1/day is the minimum they can + * specify, so we are ok at that end). + */ + xtables_error(PARAMETER_PROBLEM, "Rate too fast \"%s\"\n", rate); return 1; } @@ -118,6 +120,11 @@ static void print_rate(uint32_t period) { unsigned int i; + if (period == 0) { + printf(" %f", INFINITY); + return; + } + for (i = 1; i < ARRAY_SIZE(rates); ++i) if (period > rates[i].mult || rates[i].mult/period < rates[i].mult%period) |