Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zint/backend/tests/fuzz/fuzz_gs1.c @ 17:dd9cdb856310

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