1/* 2 Copyright (c) 2009-2017 Dave Gamble and cJSON contributors 3 4 Permission is hereby granted, free of charge, to any person obtaining a copy 5 of this software and associated documentation files (the "Software"), to deal 6 in the Software without restriction, including without limitation the rights 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 copies of the Software, and to permit persons to whom the Software is 9 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 FROM, 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 THE SOFTWARE. 21*/ 22 23#include <stdio.h> 24#include <stdlib.h> 25#include <string.h> 26 27#include "../cJSON.h" 28 29static char *read_file(const char *filename) 30{ 31 FILE *file = NULL; 32 long length = 0; 33 char *content = NULL; 34 size_t read_chars = 0; 35 36 /* open in read binary mode */ 37 file = fopen(filename, "rb"); 38 if (file == NULL) 39 { 40 goto cleanup; 41 } 42 43 /* get the length */ 44 if (fseek(file, 0, SEEK_END) != 0) 45 { 46 goto cleanup; 47 } 48 length = ftell(file); 49 if (length < 0) 50 { 51 goto cleanup; 52 } 53 if (fseek(file, 0, SEEK_SET) != 0) 54 { 55 goto cleanup; 56 } 57 58 /* allocate content buffer */ 59 content = (char*)malloc((size_t)length + sizeof("")); 60 if (content == NULL) 61 { 62 goto cleanup; 63 } 64 65 /* read the file into memory */ 66 read_chars = fread(content, sizeof(char), (size_t)length, file); 67 if ((long)read_chars != length) 68 { 69 free(content); 70 content = NULL; 71 goto cleanup; 72 } 73 content[read_chars] = '\0'; 74 75 76cleanup: 77 if (file != NULL) 78 { 79 fclose(file); 80 } 81 82 return content; 83} 84 85int main(int argc, char** argv) 86{ 87 const char *filename = NULL; 88 cJSON *item = NULL; 89 char *json = NULL; 90 int status = EXIT_FAILURE; 91 char *printed_json = NULL; 92 93 if ((argc < 2) || (argc > 3)) 94 { 95 printf("Usage:\n"); 96 printf("%s input_file [enable_printing]\n", argv[0]); 97 printf("\t input_file: file containing the test data\n"); 98 printf("\t enable_printing: print after parsing, 'yes' or 'no', defaults to 'no'\n"); 99 goto cleanup; 100 } 101 102 filename = argv[1]; 103 104#if __AFL_HAVE_MANUAL_CONTROL 105 while (__AFL_LOOP(1000)) 106 { 107#endif 108 status = EXIT_SUCCESS; 109 110 json = read_file(filename); 111 if ((json == NULL) || (json[0] == '\0') || (json[1] == '\0')) 112 { 113 status = EXIT_FAILURE; 114 goto cleanup; 115 } 116 item = cJSON_Parse(json + 2); 117 if (item == NULL) 118 { 119 goto cleanup; 120 } 121 122 if ((argc == 3) && (strncmp(argv[2], "yes", 3) == 0)) 123 { 124 int do_format = 0; 125 if (json[1] == 'f') 126 { 127 do_format = 1; 128 } 129 130 if (json[0] == 'b') 131 { 132 /* buffered printing */ 133 printed_json = cJSON_PrintBuffered(item, 1, do_format); 134 } 135 else 136 { 137 /* unbuffered printing */ 138 if (do_format) 139 { 140 printed_json = cJSON_Print(item); 141 } 142 else 143 { 144 printed_json = cJSON_PrintUnformatted(item); 145 } 146 } 147 if (printed_json == NULL) 148 { 149 status = EXIT_FAILURE; 150 goto cleanup; 151 } 152 printf("%s\n", printed_json); 153 } 154 155cleanup: 156 if (item != NULL) 157 { 158 cJSON_Delete(item); 159 item = NULL; 160 } 161 if (json != NULL) 162 { 163 free(json); 164 json = NULL; 165 } 166 if (printed_json != NULL) 167 { 168 free(printed_json); 169 printed_json = NULL; 170 } 171#if __AFL_HAVE_MANUAL_CONTROL 172 } 173#endif 174 175 return status; 176} 177