1 /*
2 * Copyright(c) 2017-2018 Tim Ruehsen
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 *
22 * This file is part of libpsl.
23 */
24
25 #include <config.h>
26
27 #include <assert.h> /* assert */
28
29 #ifdef HAVE_STDINT_H
30 #include <stdint.h> /* uint8_t */
31 #elif defined (_MSC_VER)
32 typedef unsigned __int8 uint8_t;
33 #endif
34
35 #include <stdlib.h> /* malloc, free */
36 #include <string.h> /* memcpy */
37
38 #if defined(WITH_LIBICU)
39 #include <unicode/uclean.h>
40 #endif
41
42 #include "libpsl.h"
43 #include "fuzzer.h"
44
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)45 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
46 {
47 static int first_run = 1;
48 psl_ctx_t *psl;
49 char *domain, *res;
50 int rc;
51
52 if (size > 64 * 1024 - 1)
53 return 0;
54
55 domain = (char *) malloc(size + 1);
56 assert(domain != NULL);
57
58 /* 0 terminate */
59 memcpy(domain, data, size);
60 domain[size] = 0;
61
62 psl = (psl_ctx_t *) psl_builtin();
63
64 psl_is_public_suffix(psl, domain);
65 psl_is_public_suffix2(psl, domain, PSL_TYPE_PRIVATE);
66 psl_is_public_suffix2(psl, domain, PSL_TYPE_ICANN);
67 psl_is_public_suffix2(psl, domain, PSL_TYPE_NO_STAR_RULE);
68 psl_is_public_suffix2(psl, domain, PSL_TYPE_NO_STAR_RULE|PSL_TYPE_ANY);
69 psl_unregistrable_domain(psl, domain);
70 psl_registrable_domain(psl, domain);
71
72 psl_is_cookie_domain_acceptable(psl, "", NULL);
73 psl_is_cookie_domain_acceptable(psl, "a.b.c.e.com", domain);
74
75 if ((rc = psl_str_to_utf8lower(domain, "utf-8", NULL, &res)) == PSL_SUCCESS)
76 free(res);
77 if ((rc = psl_str_to_utf8lower(domain, "iso-8859-1", NULL, &res)) == PSL_SUCCESS)
78 free(res);
79 if ((rc = psl_str_to_utf8lower(domain, NULL, NULL, &res)) == PSL_SUCCESS)
80 free(res);
81
82 psl_free(psl);
83
84 if (first_run) {
85 psl_is_public_suffix(NULL, domain);
86 psl_check_version_number(1);
87 psl_get_version();
88 psl_dist_filename();
89 psl_builtin_outdated();
90 psl_builtin_filename();
91 psl_builtin_sha1sum();
92 psl_builtin_file_time();
93 first_run = 0;
94 }
95
96 free(domain);
97
98 #if defined(WITH_LIBICU)
99 u_cleanup(); /* free all library internal memory to avoid memory leaks being reported */
100 #endif
101
102 return 0;
103 }
104