Mercurial > hgrepos > Python2 > PyMuPDF

comparison mupdf-source/thirdparty/zint/backend/tests/fuzz/fuzz_gs1.c @ 2:b50eed0cc0ef upstream

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
parents
children
comparison
equal deleted inserted replaced
1:1d09e1dec1d9 2:b50eed0cc0ef
1 /* fuzz_gs1.c - fuzzer for libzint (GS1-enabled symbologies, GS1_MODE) */
2 /*
3 libzint - the open source barcode library
4 Copyright (C) 2024 Robin Stuart <rstuart114@gmail.com>
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
8 are met:
9
10 1. Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15 3. Neither the name of the project nor the names of its contributors
16 may be used to endorse or promote products derived from this software
17 without specific prior written permission.
18
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 SUCH DAMAGE.
30 */
31 /* SPDX-License-Identifier: BSD-3-Clause */
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif /* __cplusplus */
36
37 #if 0
38 #define Z_FUZZ_DEBUG /* Set `symbol->debug` flag */
39 #define Z_FUZZ_SET_OUTPUT_OPTIONS /* Set `symbol->output_options` */
40 #endif
41 #include "fuzz.h"
42
43 int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) {
44 static const int symbologies[] = {
45 BARCODE_AZTEC, BARCODE_CODE16K, BARCODE_CODE49, BARCODE_CODEONE, BARCODE_DATAMATRIX, BARCODE_DBAR_EXP,
46 BARCODE_DBAR_EXPSTK, BARCODE_DOTCODE, BARCODE_GS1_128, BARCODE_QRCODE, BARCODE_RMQR, BARCODE_ULTRA,
47 BARCODE_EANX_CC, BARCODE_GS1_128_CC, BARCODE_DBAR_OMN_CC, BARCODE_DBAR_LTD_CC, BARCODE_DBAR_EXP_CC,
48 BARCODE_UPCA_CC, BARCODE_UPCE_CC, BARCODE_DBAR_STK_CC, BARCODE_DBAR_OMNSTK_CC, BARCODE_DBAR_EXPSTK_CC,
49 };
50 struct zint_symbol *symbol;
51 unsigned char *gs1_buf;
52 int i;
53
54 /* Ignore empty or very large input */
55 if (size < 1 || size > 10000) {
56 return 0;
57 }
58
59 symbol = ZBarcode_Create();
60 assert(symbol);
61
62 gs1_buf = (unsigned char *) malloc(size + 2);
63 assert(gs1_buf);
64 gs1_buf[0] = '['; /* Add dummy AI - along with GS1NOCHECK_MODE disables GS1 verification */
65 gs1_buf[1] = ']';
66
67 for (i = 0; i < ZARRAY_SIZE(symbologies); i++) {
68 static const char primary_ai[] = "[01]12345678901231";
69 static const char primary_upce[] = "12345670";
70 static const char primary[] = "123456789012";
71 const int idx = symbologies[i];
72 const int is_composite = ZBarcode_Cap(idx, ZINT_CAP_COMPOSITE) & ZINT_CAP_COMPOSITE;
73 const unsigned char *input;
74 int length;
75 int ret;
76
77 assert(ZBarcode_ValidID(idx));
78
79 input = data;
80 length = set_symbol(symbol, idx, !is_composite /*chk_sane*/, 1 /*no_eci*/, &input, size);
81 if (!length) {
82 continue;
83 }
84
85 if (is_composite) {
86 if (idx == BARCODE_GS1_128_CC || idx == BARCODE_DBAR_EXP_CC || idx == BARCODE_DBAR_EXPSTK_CC) {
87 strcpy(symbol->primary, primary_ai);
88 } else if (idx == BARCODE_UPCE_CC) {
89 strcpy(symbol->primary, primary_upce);
90 } else {
91 strcpy(symbol->primary, primary);
92 }
93 }
94
95 /* Try it first without GS1NOCHECK_MODE */
96 symbol->input_mode = (symbol->input_mode & ~0x07) | GS1_MODE;
97
98 ret = ZBarcode_Encode(symbol, input, length);
99 assert(ret != ZINT_ERROR_ENCODING_PROBLEM);
100
101 ZBarcode_Clear(symbol);
102
103 /* Now with GS1NOCHECK_MODE */
104 symbol->input_mode = (symbol->input_mode & ~0x07) | GS1_MODE | GS1NOCHECK_MODE;
105 symbol->input_mode &= ~GS1PARENS_MODE;
106
107 memcpy(gs1_buf + 2, input, length);
108
109 ret = ZBarcode_Encode(symbol, gs1_buf, length + 2);
110 assert(ret != ZINT_ERROR_ENCODING_PROBLEM);
111 }
112
113 (void) free(gs1_buf);
114 ZBarcode_Delete(symbol);
115
116 return 0;
117 }
118
119 #ifdef __cplusplus
120 }
121 #endif /* __cplusplus */
122
123 /* vim: set ts=4 sw=4 et : */