src/fuzz/fuzz-json.c

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