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f_addr.c

/*
 * src/f_addr.c         Address Filter
 *
 *          This program is free software; you can redistribute it and/or
 *          modify it under the terms of the GNU General Public License
 *          as published by the Free Software Foundation; either version
 *          2 of the License, or (at your option) any later version.
 *
 * Copyright (c) 2003-2005 Thomas Graf <tgraf@suug.ch>
 */

static void get_filter(struct rtnl_addr *addr, int argc, char **argv, int idx,
                   struct nl_cache *link_cache)
{
      struct nl_addr *a;

      while (argc > idx) {
            if (arg_match("dev")) {
                  if (argc > ++idx) {
                        int ifindex = rtnl_link_name2i(link_cache, argv[idx++]);
                        if (ifindex == RTNL_LINK_NOT_FOUND)
                              goto err_notfound;
                        rtnl_addr_set_ifindex(addr, ifindex);
                  }
            } else if (arg_match("family")) {
                  if (argc > ++idx) {
                        int family = nl_str2af(argv[idx++]);
                        if (family == AF_UNSPEC)
                              goto err_invaf;
                        rtnl_addr_set_family(addr, family);
                  }
            } else if (arg_match("label")) {
                  if (argc > ++idx)
                        rtnl_addr_set_label(addr, argv[idx++]);
            } else if (arg_match("scope")) {
                  if (argc > ++idx) {
                        int scope = rtnl_str2scope(argv[idx++]);
                        if (scope < 0)
                              goto err_invscope;
                        rtnl_addr_set_scope(addr, scope);
                  }
            } else if (arg_match("local")) {
                  if (argc > ++idx) {
                        a = nl_addr_parse(argv[idx++],
                                      rtnl_addr_get_family(addr));
                        if (!a)
                              goto err_invaddr;
                        rtnl_addr_set_local(addr, a);
                        nl_addr_put(a);
                  }
            } else if (arg_match("peer")) {
                  if (argc > ++idx) {
                        a = nl_addr_parse(argv[idx++],
                                      rtnl_addr_get_family(addr));
                        if (!a)
                              goto err_invaddr;
                        rtnl_addr_set_peer(addr, a);
                        nl_addr_put(a);
                  }
            } else if (arg_match("broadcast")) {
                  if (argc > ++idx) {
                        a = nl_addr_parse(argv[idx++],
                                      rtnl_addr_get_family(addr));
                        if (!a)
                              goto err_invaddr;
                        rtnl_addr_set_broadcast(addr, a);
                        nl_addr_put(a);
                  }
            } else if (arg_match("multicast")) {
                  if (argc > ++idx) {
                        a = nl_addr_parse(argv[idx++],
                                      rtnl_addr_get_family(addr));
                        if (!a)
                              goto err_invaddr;
                        rtnl_addr_set_multicast(addr, a);
                        nl_addr_put(a);
                  }
            } else if (arg_match("anycast")) {
                  if (argc > ++idx) {
                        a = nl_addr_parse(argv[idx++],
                                      rtnl_addr_get_family(addr));
                        if (!a)
                              goto err_invaddr;
                        rtnl_addr_set_anycast(addr, a);
                        nl_addr_put(a);
                  }
            } else {
                  fprintf(stderr, "What is '%s'?\n", argv[idx]);
                  exit(1);
            }
      }

      return;

err_notfound:
      fprintf(stderr, "Unknown link %s\n", argv[idx-1]);
      exit(1);
err_invscope:
      fprintf(stderr, "Invalid scope name \"%s\".\n", argv[idx-1]);
      exit(1);
err_invaf:
      fprintf(stderr, "Invalid address family \"%s\"\n", argv[idx-1]);
      exit(1);
err_invaddr:
      fprintf(stderr, "Invalid address \"%s\": %s\n", argv[idx-1], nl_geterror());
      exit(1);
}

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