src/fuzz/fuzz-json.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "alloc-util.h"
   4 #include "fileio.h"
   5 #include "fd-util.h"
   6 #include "fuzz.h"
   7 #include "json.h"
   8
   9 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  10         _cleanup_free_ char *out = NULL; /* out should be freed after g */
  11         size_t out_size;
  12         _cleanup_fclose_ FILE *f = NULL, *g = NULL;
  13         _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
  14
  15         if (size == 0)
  16                 return 0;
  17
  18         f = fmemopen_unlocked((char*) data, size, "re");
  19         assert_se(f);
  20
  21         if (json_parse_file(f, NULL, 0, &v, NULL, NULL) < 0)
  22                 return 0;
  23
  24         g = open_memstream_unlocked(&out, &out_size);
  25         assert_se(g);
  26
  27         json_variant_dump(v, 0, g, NULL);
  28         json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, g, NULL);
  29
  30         return 0;
  31 }