src/resolve/test-resolved-packet.c

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