78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "../cJSON.h"
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int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); /* required by C89 */
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int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
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{
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cJSON *json;
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size_t offset = 4;
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unsigned char *copied;
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char *printed_json = NULL;
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int minify, require_termination, formatted, buffered;
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if(size <= offset) return 0;
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if(data[size-1] != '\0') return 0;
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if(data[0] != '1' && data[0] != '0') return 0;
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if(data[1] != '1' && data[1] != '0') return 0;
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if(data[2] != '1' && data[2] != '0') return 0;
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if(data[3] != '1' && data[3] != '0') return 0;
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minify = data[0] == '1' ? 1 : 0;
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require_termination = data[1] == '1' ? 1 : 0;
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formatted = data[2] == '1' ? 1 : 0;
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buffered = data[3] == '1' ? 1 : 0;
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json = cJSON_ParseWithOpts((const char*)data + offset, NULL, require_termination);
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if(json == NULL) return 0;
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if(buffered)
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{
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printed_json = cJSON_PrintBuffered(json, 1, formatted);
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}
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else
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{
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/* unbuffered printing */
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if(formatted)
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{
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printed_json = cJSON_Print(json);
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}
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else
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{
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printed_json = cJSON_PrintUnformatted(json);
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}
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}
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if(printed_json != NULL) free(printed_json);
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if(minify)
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{
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copied = (unsigned char*)malloc(size);
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if(copied == NULL) return 0;
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memcpy(copied, data, size);
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cJSON_Minify((char*)copied + offset);
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free(copied);
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}
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cJSON_Delete(json);
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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