1 #include <stdint.h>
2 #include <stdlib.h>
3 #include <stdio.h>
4
5 /* This file doesn't use any Mbed TLS function, but grab mbedtls_config.h anyway
6 * in case it contains platform-specific #defines related to malloc or
7 * stdio functions. */
8 #include "mbedtls/build_info.h"
9
10 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
11
main(int argc,char ** argv)12 int main(int argc, char **argv)
13 {
14 FILE *fp;
15 uint8_t *Data;
16 size_t Size;
17 const char *argv0 = argv[0] == NULL ? "PROGRAM_NAME" : argv[0];
18
19 if (argc != 2) {
20 fprintf(stderr, "Usage: %s REPRODUCER_FILE\n", argv0);
21 return 1;
22 }
23 //opens the file, get its size, and reads it into a buffer
24 fp = fopen(argv[1], "rb");
25 if (fp == NULL) {
26 fprintf(stderr, "%s: Error in fopen\n", argv0);
27 perror(argv[1]);
28 return 2;
29 }
30 if (fseek(fp, 0L, SEEK_END) != 0) {
31 fprintf(stderr, "%s: Error in fseek(SEEK_END)\n", argv0);
32 perror(argv[1]);
33 fclose(fp);
34 return 2;
35 }
36 Size = ftell(fp);
37 if (Size == (size_t) -1) {
38 fprintf(stderr, "%s: Error in ftell\n", argv0);
39 perror(argv[1]);
40 fclose(fp);
41 return 2;
42 }
43 if (fseek(fp, 0L, SEEK_SET) != 0) {
44 fprintf(stderr, "%s: Error in fseek(0)\n", argv0);
45 perror(argv[1]);
46 fclose(fp);
47 return 2;
48 }
49 Data = malloc(Size);
50 if (Data == NULL) {
51 fprintf(stderr, "%s: Could not allocate memory\n", argv0);
52 perror(argv[1]);
53 fclose(fp);
54 return 2;
55 }
56 if (fread(Data, Size, 1, fp) != 1) {
57 fprintf(stderr, "%s: Error in fread\n", argv0);
58 perror(argv[1]);
59 free(Data);
60 fclose(fp);
61 return 2;
62 }
63
64 //launch fuzzer
65 LLVMFuzzerTestOneInput(Data, Size);
66 free(Data);
67 fclose(fp);
68 return 0;
69 }
70