lib/fuzzing/fuzz_tiniparser.c

   1 /*
   2    Fuzzing for trivial smb.conf parsing code.
   3    Copyright (C) Michael Hanselmann 2019
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include "includes.h"
  20 #include "fuzzing.h"
  21 #include "lib/util/tiniparser.h"
  22
  23 int LLVMFuzzerInitialize(int *argc, char ***argv)
  24 {
  25         return 0;
  26 }
  27
  28 int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
  29 {
  30         FILE *fp = NULL;
  31         struct tiniparser_dictionary *d = NULL;
  32
  33         if (len == 0) {
  34                 /*
  35                  * Otherwise fmemopen() will return null and set errno
  36                  * to EINVAL
  37                  */
  38                 return 0;
  39         }
  40
  41         fp = fmemopen(buf, len, "r");
  42
  43         d = tiniparser_load_stream(fp);
  44         if (d != NULL) {
  45                 tiniparser_freedict(d);
  46         }
  47
  48         fclose(fp);
  49
  50         return 0;
  51 }