1f9d8a43c2
The fuzz programs were returning a nonzero status if they failed to load the reproducer, but that's discreet and not informative. Make them also print an error message. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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/* This file doesn't use any Mbed TLS function, but grab mbedtls_config.h anyway
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* in case it contains platform-specific #defines related to malloc or
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* stdio functions. */
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#include "mbedtls/build_info.h"
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
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int main(int argc, char **argv)
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{
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FILE *fp;
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uint8_t *Data;
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size_t Size;
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const char *argv0 = argv[0] == NULL ? "PROGRAM_NAME" : argv[0];
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if (argc != 2) {
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fprintf(stderr, "Usage: %s REPRODUCER_FILE\n", argv0);
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return 1;
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}
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//opens the file, get its size, and reads it into a buffer
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fp = fopen(argv[1], "rb");
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if (fp == NULL) {
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fprintf(stderr, "%s: Error in fopen\n", argv0);
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perror(argv[1]);
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return 2;
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}
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if (fseek(fp, 0L, SEEK_END) != 0) {
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fprintf(stderr, "%s: Error in fseek(SEEK_END)\n", argv0);
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perror(argv[1]);
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fclose(fp);
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return 2;
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}
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Size = ftell(fp);
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if (Size == (size_t) -1) {
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fprintf(stderr, "%s: Error in ftell\n", argv0);
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perror(argv[1]);
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fclose(fp);
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return 2;
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}
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if (fseek(fp, 0L, SEEK_SET) != 0) {
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fprintf(stderr, "%s: Error in fseek(0)\n", argv0);
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perror(argv[1]);
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fclose(fp);
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return 2;
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}
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Data = malloc(Size);
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if (Data == NULL) {
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fprintf(stderr, "%s: Could not allocate memory\n", argv0);
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perror(argv[1]);
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fclose(fp);
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return 2;
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}
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if (fread(Data, Size, 1, fp) != 1) {
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fprintf(stderr, "%s: Error in fread\n", argv0);
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perror(argv[1]);
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free(Data);
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fclose(fp);
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return 2;
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}
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//launch fuzzer
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LLVMFuzzerTestOneInput(Data, Size);
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free(Data);
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fclose(fp);
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return 0;
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}
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