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
LLVMFuzzerInitialize(int * argc,char *** argv)25 int LLVMFuzzerInitialize(int *argc, char ***argv)
26 {
27 devnull = fopen("/dev/null", "w");
28
29 return 0;
30 }
31
LLVMFuzzerTestOneInput(uint8_t * buf,size_t len)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 }
72