jak-project/third-party/capstone/suite/fuzz/onefile.c

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);

int main(int argc, char **argv)
{
	FILE *fp;
	uint8_t *Data;
	size_t Size;

	if (argc != 2) {
		return 1;
	}
	//opens the file, get its size, and reads it into a buffer
	fp = fopen(argv[1], "rb");
	if (fp == NULL) {
		return 2;
	}
	if (fseek(fp, 0L, SEEK_END) != 0) {
		fclose(fp);
		return 2;
	}
	Size = ftell(fp);
	if (Size == (size_t)-1) {
		fclose(fp);
		return 2;
	}
	if (fseek(fp, 0L, SEEK_SET) != 0) {
		fclose(fp);
		return 2;
	}
	Data = malloc(Size);
	if (Data == NULL) {
		fclose(fp);
		return 2;
	}
	if (fread(Data, Size, 1, fp) != 1) {
		fclose(fp);
		free(Data);
		return 2;
	}

	//launch fuzzer
	LLVMFuzzerTestOneInput(Data, Size);
	free(Data);
	fclose(fp);
	return 0;
}