limit match does not support invert, warn about it. Closes bugzilla #95 (Phil Oester)

diff --git a/extensions/libipt_limit.c b/extensions/libipt_limit.c
index 4d52040c7a1a34823a226a3843d6e47b8666fdda..2b155806468686ce61d1faf5111425b66d93e284 100644 (file)
--- a/extensions/libipt_limit.c
+++ b/extensions/libipt_limit.c
@@ -104,19 +104,14 @@ parse(int c, char **argv, int invert, unsigned int *flags,
 
        switch(c) {
        case '%':
-               if (check_inverse(optarg, &invert, NULL, 0))
-                       exit_error(PARAMETER_PROBLEM,
-                                  "Unexpected `!' after --limit");
+               if (check_inverse(argv[optind-1], &invert, &optind, 0)) break;
                if (!parse_rate(optarg, &r->avg))
                        exit_error(PARAMETER_PROBLEM,
                                   "bad rate `%s'", optarg);
                break;
 
        case '$':
-               if (check_inverse(optarg, &invert, NULL, 0))
-                       exit_error(PARAMETER_PROBLEM,
-                                  "Unexpected `!' after --limit-burst");
-
+               if (check_inverse(argv[optind-1], &invert, &optind, 0)) break;
                if (string_to_number(optarg, 0, 10000, &num) == -1)
                        exit_error(PARAMETER_PROBLEM,
                                   "bad --limit-burst `%s'", optarg);
@@ -127,6 +122,10 @@ parse(int c, char **argv, int invert, unsigned int *flags,
                return 0;
        }
 
+       if (invert)
+               exit_error(PARAMETER_PROBLEM,
+                          "limit does not support invert");
+
        return 1;
 }