lib/fuzzing/fuzz_oLschema2ldif.c

   1 /*
   2    Fuzzing for oLschema2ldif
   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 "utils/oLschema2ldif/lib.h"
  22
  23 static FILE *devnull;
  24
  25 int LLVMFuzzerInitialize(int *argc, char ***argv)
  26 {
  27         devnull = fopen("/dev/null", "w");
  28
  29         return 0;
  30 }
  31
  32 int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
  33 {
  34         TALLOC_CTX *mem_ctx;
  35         struct conv_options opt;
  36
  37         if (len == 0) {
  38                 /*
  39                  * Otherwise fmemopen() will return null and set errno
  40                  * to EINVAL
  41                  */
  42                 return 0;
  43         }
  44
  45         mem_ctx = talloc_init(__FUNCTION__);
  46         if (mem_ctx == NULL) {
  47                 return 0;
  48         }
  49
  50         opt.in = fmemopen(buf, len, "r");
  51         opt.out = devnull;
  52         opt.ldb_ctx = ldb_init(mem_ctx, NULL);
  53         if (opt.ldb_ctx == NULL || opt.in == NULL) {
  54                 talloc_free(mem_ctx);
  55                 return 0;
  56         }
  57
  58         opt.basedn = ldb_dn_new(mem_ctx, opt.ldb_ctx, "");
  59         if (opt.basedn == NULL) {
  60                 talloc_free(mem_ctx);
  61                 return 0;
  62         }
  63
  64         process_file(mem_ctx, &opt);
  65
  66         fclose(opt.in);
  67
  68         talloc_free(mem_ctx);
  69
  70         return 0;
  71 }