1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2// See https://llvm.org/LICENSE.txt for license information.
3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4
5// Break through a series of strcmp.
6#include <cassert>
7#include <cstdint>
8#include <cstdio>
9#include <cstdlib>
10#include <cstring>
11
12bool Eq(const uint8_t *Data, size_t Size, const char *Str) {
13 char Buff[1024];
14 size_t Len = strlen(s: Str);
15 if (Size < Len) return false;
16 if (Len >= sizeof(Buff)) return false;
17 memcpy(dest: Buff, src: (const char*)Data, n: Len);
18 Buff[Len] = 0;
19 int res = strcmp(s1: Buff, s2: Str);
20 return res == 0;
21}
22
23extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
24 if (Eq(Data, Size, Str: "ABC") &&
25 Size >= 3 && Eq(Data: Data + 3, Size: Size - 3, Str: "QWER") &&
26 Size >= 7 && Eq(Data: Data + 7, Size: Size - 7, Str: "ZXCVN")) {
27 fprintf(stderr, format: "BINGO\n");
28 exit(status: 1);
29 }
30 return 0;
31}
32

source code of compiler-rt/test/fuzzer/StrcmpTest.cpp