| 1088 | #define cjson_min(a, b) ((a < b) ? a : b) |
| 1089 | |
| 1090 | static unsigned char *print(const cJSON * const item, cJSON_bool format, const internal_hooks * const hooks) |
| 1091 | { |
| 1092 | static const size_t default_buffer_size = 256; |
| 1093 | printbuffer buffer[1]; |
| 1094 | unsigned char *printed = NULL; |
| 1095 | |
| 1096 | memset(buffer, 0, sizeof(buffer)); |
| 1097 | |
| 1098 | /* create buffer */ |
| 1099 | buffer->buffer = (unsigned char*) hooks->allocate(default_buffer_size); |
| 1100 | buffer->length = default_buffer_size; |
| 1101 | buffer->format = format; |
| 1102 | buffer->hooks = *hooks; |
| 1103 | if (buffer->buffer == NULL) |
| 1104 | { |
| 1105 | goto fail; |
| 1106 | } |
| 1107 | |
| 1108 | /* print the value */ |
| 1109 | if (!print_value(item, buffer)) |
| 1110 | { |
| 1111 | goto fail; |
| 1112 | } |
| 1113 | update_offset(buffer); |
| 1114 | |
| 1115 | /* check if reallocate is available */ |
| 1116 | if (hooks->reallocate != NULL) |
| 1117 | { |
| 1118 | printed = (unsigned char*) hooks->reallocate(buffer->buffer, buffer->offset + 1); |
| 1119 | if (printed == NULL) { |
| 1120 | goto fail; |
| 1121 | } |
| 1122 | buffer->buffer = NULL; |
| 1123 | } |
| 1124 | else /* otherwise copy the JSON over to a new buffer */ |
| 1125 | { |
| 1126 | printed = (unsigned char*) hooks->allocate(buffer->offset + 1); |
| 1127 | if (printed == NULL) |
| 1128 | { |
| 1129 | goto fail; |
| 1130 | } |
| 1131 | memcpy(printed, buffer->buffer, cjson_min(buffer->length, buffer->offset + 1)); |
| 1132 | printed[buffer->offset] = '\0'; /* just to be sure */ |
| 1133 | |
| 1134 | /* free the buffer */ |
| 1135 | hooks->deallocate(buffer->buffer); |
| 1136 | } |
| 1137 | |
| 1138 | return printed; |
| 1139 | |
| 1140 | fail: |
| 1141 | if (buffer->buffer != NULL) |
| 1142 | { |
| 1143 | hooks->deallocate(buffer->buffer); |
| 1144 | } |
| 1145 | |
| 1146 | if (printed != NULL) |
| 1147 | { |
no test coverage detected