src/resolve/test-resolved-packet.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2017 Zbigniew Jędrzejewski-Szmek
   4 ***/
   5
   6 #include "log.h"
   7 #include "resolved-dns-packet.h"
   8
   9 static void test_dns_packet_new(void) {
  10         size_t i;
  11          _cleanup_(dns_packet_unrefp) DnsPacket *p2 = NULL;
  12
  13         for (i = 0; i <= DNS_PACKET_SIZE_MAX; i++) {
  14                 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
  15
  16                 assert_se(dns_packet_new(&p, DNS_PROTOCOL_DNS, i, DNS_PACKET_SIZE_MAX) == 0);
  17
  18                 log_debug("dns_packet_new: %zu → %zu", i, p->allocated);
  19                 assert_se(p->allocated >= MIN(DNS_PACKET_SIZE_MAX, i));
  20
  21                 if (i > DNS_PACKET_SIZE_START + 10 && i < DNS_PACKET_SIZE_MAX - 10)
  22                         i = MIN(i * 2, DNS_PACKET_SIZE_MAX - 10);
  23         }
  24
  25         assert_se(dns_packet_new(&p2, DNS_PROTOCOL_DNS, DNS_PACKET_SIZE_MAX + 1, DNS_PACKET_SIZE_MAX) == -EFBIG);
  26 }
  27
  28 int main(int argc, char **argv) {
  29
  30         log_set_max_level(LOG_DEBUG);
  31         log_parse_environment();
  32         log_open();
  33
  34         test_dns_packet_new();
  35
  36         return 0;
  37 }