lib/fuzzing/afl-fuzz-main.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Fuzz driver (AFL style)
   5
   6    Copyright (C) Andrew Bartlett 2019
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/util/samba_util.h"
  24 #include "fuzzing.h"
  25
  26 int main(int argc, char *argv[]) {
  27         int ret;
  28         size_t size = 0;
  29         int i;
  30
  31         ret = LLVMFuzzerInitialize(&argc, &argv);
  32         if (ret != 0) {
  33                 printf("LLVMFuzzerInitialize returned %d\n", ret);
  34                 return ret;
  35         }
  36
  37
  38 #ifdef __AFL_LOOP
  39         while (__AFL_LOOP(1000))
  40 #else
  41         for (i = 1; i < argc; i++) {
  42                 uint8_t *buf = (uint8_t *)file_load(argv[i],
  43                                                     &size,
  44                                                     0,
  45                                                     NULL);
  46                 ret = LLVMFuzzerTestOneInput(buf, size);
  47                 TALLOC_FREE(buf);
  48                 if (ret != 0) {
  49                         printf("LLVMFuzzerTestOneInput returned %d on argument %d\n",
  50                                ret, i);
  51                         return ret;
  52                 }
  53         }
  54         if (i == 1)
  55 #endif
  56         {
  57                 uint8_t *buf = (uint8_t *)fd_load(0, &size, 0, NULL);
  58                 if (buf == NULL) {
  59                         exit(1);
  60                 }
  61
  62                 ret = LLVMFuzzerTestOneInput(buf, size);
  63                 TALLOC_FREE(buf);
  64         }
  65         return ret;
  66 }