src/resolve/fuzz-resource-record.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include "fd-util.h"
   4 #include "fuzz.h"
   5 #include "memory-util.h"
   6 #include "memstream-util.h"
   7 #include "resolved-dns-packet.h"
   8
   9 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  10         _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL, *copy = NULL;
  11         _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
  12         _cleanup_(memstream_done) MemStream m = {};
  13         FILE *f;
  14
  15         if (outside_size_range(size, 0, DNS_PACKET_SIZE_MAX))
  16                 return 0;
  17
  18         if (dns_resource_record_new_from_raw(&rr, data, size) < 0)
  19                 return 0;
  20
  21         fuzz_setup_logging();
  22
  23         assert_se(copy = dns_resource_record_copy(rr));
  24         assert_se(dns_resource_record_equal(copy, rr) > 0);
  25
  26         assert_se(f = memstream_init(&m));
  27         (void) fprintf(f, "%s", strna(dns_resource_record_to_string(rr)));
  28
  29         if (dns_resource_record_to_json(rr, &v) < 0)
  30                 return 0;
  31
  32         (void) json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, f, NULL);
  33         (void) dns_resource_record_to_wire_format(rr, false);
  34         (void) dns_resource_record_to_wire_format(rr, true);
  35
  36         return 0;
  37 }