lib/fuzzing/fuzz_cli_credentials_parse_string.c

   1 /*
   2   Fuzz cli_credentials_parse_string
   3   Copyright (C) Catalyst IT 2020
   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 #include "includes.h"
  19 #include "auth/credentials/credentials.h"
  20 #include "fuzzing/fuzzing.h"
  21
  22 #define MAX_LENGTH (1024 * 10)
  23 char buf[MAX_LENGTH + 1];
  24
  25 const enum credentials_obtained obtained = CRED_UNINITIALISED;
  26
  27
  28 int LLVMFuzzerTestOneInput(uint8_t *input, size_t len)
  29 {
  30         TALLOC_CTX *mem_ctx = NULL;
  31         struct cli_credentials *credentials = NULL;
  32         bool anon;
  33         const char *username;
  34         const char *domain;
  35
  36         if (len > MAX_LENGTH) {
  37                 return 0;
  38         }
  39
  40         memcpy(buf, input, len);
  41         buf[len] = '\0';
  42
  43         mem_ctx = talloc_new(NULL);
  44         credentials = cli_credentials_init(mem_ctx);
  45
  46         cli_credentials_parse_string(credentials, buf, obtained);
  47
  48         anon = cli_credentials_is_anonymous(credentials);
  49
  50         cli_credentials_get_ntlm_username_domain(credentials,
  51                                                  mem_ctx,
  52                                                  &username,
  53                                                  &domain);
  54
  55         talloc_free(mem_ctx);
  56         return 0;
  57 }
  58
  59
  60 int LLVMFuzzerInitialize(int *argc, char ***argv)
  61 {
  62         return 0;
  63 }