update to 1.4.7 and change repositoyry layout as this is easier to maintain

[iptables.git] / extensions / libxt_length.c

diff --git a/extensions/libxt_length.c b/extensions/libxt_length.c
deleted file mode 100644 (file)
index ec305ae..0000000
--- a/extensions/libxt_length.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* Shared library add-on to iptables to add packet length matching support. */
-#include <stdio.h>
-#include <netdb.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
-
-#include <xtables.h>
-#include <linux/netfilter/xt_length.h>
-
-/* Function which prints out usage message. */
-static void length_help(void)
-{
-       printf(
-"length match options:\n"
-"[!] --length length[:length]    Match packet length against value or range\n"
-"                                of values (inclusive)\n");
-}
-  
-static const struct option length_opts[] = {
-       { "length", 1, NULL, '1' },
-       { .name = NULL }
-};
-
-static u_int16_t
-parse_length(const char *s)
-{
-       unsigned int len;
-       
-       if (string_to_number(s, 0, 0xFFFF, &len) == -1)
-               exit_error(PARAMETER_PROBLEM, "length invalid: `%s'\n", s);
-       else
-               return (u_int16_t )len;
-}
-
-/* If a single value is provided, min and max are both set to the value */
-static void
-parse_lengths(const char *s, struct xt_length_info *info)
-{
-       char *buffer;
-       char *cp;
-
-       buffer = strdup(s);
-       if ((cp = strchr(buffer, ':')) == NULL)
-               info->min = info->max = parse_length(buffer);
-       else {
-               *cp = '\0';
-               cp++;
-
-               info->min = buffer[0] ? parse_length(buffer) : 0;
-               info->max = cp[0] ? parse_length(cp) : 0xFFFF;
-       }
-       free(buffer);
-       
-       if (info->min > info->max)
-               exit_error(PARAMETER_PROBLEM,
-                          "length min. range value `%u' greater than max. "
-                          "range value `%u'", info->min, info->max);
-       
-}
-
-/* Function which parses command options; returns true if it
-   ate an option */
-static int
-length_parse(int c, char **argv, int invert, unsigned int *flags,
-             const void *entry, struct xt_entry_match **match)
-{
-       struct xt_length_info *info = (struct xt_length_info *)(*match)->data;
-
-       switch (c) {
-               case '1':
-                       if (*flags)
-                               exit_error(PARAMETER_PROBLEM,
-                                          "length: `--length' may only be "
-                                          "specified once");
-                       check_inverse(optarg, &invert, &optind, 0);
-                       parse_lengths(argv[optind-1], info);
-                       if (invert)
-                               info->invert = 1;
-                       *flags = 1;
-                       break;
-                       
-               default:
-                       return 0;
-       }
-       return 1;
-}
-
-/* Final check; must have specified --length. */
-static void length_check(unsigned int flags)
-{
-       if (!flags)
-               exit_error(PARAMETER_PROBLEM,
-                          "length: You must specify `--length'");
-}
-
-/* Common match printing code. */
-static void
-print_length(struct xt_length_info *info)
-{
-       if (info->invert)
-               printf("! ");
-       
-       if (info->max == info->min)
-               printf("%u ", info->min);
-       else
-               printf("%u:%u ", info->min, info->max);
-}
-
-/* Prints out the matchinfo. */
-static void
-length_print(const void *ip, const struct xt_entry_match *match, int numeric)
-{
-       printf("length ");
-       print_length((struct xt_length_info *)match->data);
-}
-
-/* Saves the union ipt_matchinfo in parsable form to stdout. */
-static void length_save(const void *ip, const struct xt_entry_match *match)
-{
-       printf("--length ");
-       print_length((struct xt_length_info *)match->data);
-}
-
-static struct xtables_match length_match = {
-       .family         = AF_UNSPEC,
-       .name           = "length",
-       .version        = XTABLES_VERSION,
-       .size           = XT_ALIGN(sizeof(struct xt_length_info)),
-       .userspacesize  = XT_ALIGN(sizeof(struct xt_length_info)),
-       .help           = length_help,
-       .parse          = length_parse,
-       .final_check    = length_check,
-       .print          = length_print,
-       .save           = length_save,
-       .extra_opts     = length_opts,
-};
-
-void _init(void)
-{
-       xtables_register_match(&length_match);
-}