src/libsystemd/sd-netlink/test-local-addresses.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2014 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include "af-list.h"
  21 #include "alloc-util.h"
  22 #include "in-addr-util.h"
  23 #include "local-addresses.h"
  24
  25 static void print_local_addresses(struct local_address *a, unsigned n) {
  26         unsigned i;
  27
  28         for (i = 0; i < n; i++) {
  29                 _cleanup_free_ char *b = NULL;
  30
  31                 assert_se(in_addr_to_string(a[i].family, &a[i].address, &b) >= 0);
  32                 printf("%s if%i scope=%i metric=%u address=%s\n", af_to_name(a[i].family), a[i].ifindex, a[i].scope, a[i].metric, b);
  33         }
  34 }
  35
  36 int main(int argc, char *argv[]) {
  37         struct local_address *a;
  38         int n;
  39
  40         a = NULL;
  41         n = local_addresses(NULL, 0, AF_UNSPEC, &a);
  42         assert_se(n >= 0);
  43
  44         printf("Local Addresses:\n");
  45         print_local_addresses(a, (unsigned) n);
  46         a = mfree(a);
  47
  48         n = local_gateways(NULL, 0, AF_UNSPEC, &a);
  49         assert_se(n >= 0);
  50
  51         printf("Local Gateways:\n");
  52         print_local_addresses(a, (unsigned) n);
  53         free(a);
  54
  55         return 0;
  56 }