39 lines · cpp
1//===-- strcpy_fuzz.cpp ---------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8///9/// Fuzzing test for llvm-libc strcpy implementation.10///11//===----------------------------------------------------------------------===//12#include "src/string/strcpy.h"13#include <stdint.h>14 15extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {16 // Validate input17 if (!size) return 0;18 if (data[size - 1] != '\0') return 0;19 const char *src = (const char *)data;20 21 char *dest = new char[size];22 if (!dest) __builtin_trap();23 24 LIBC_NAMESPACE::strcpy(dest, src);25 26 size_t i;27 for (i = 0; src[i] != '\0'; i++) {28 // Ensure correctness of strcpy29 if (dest[i] != src[i]) __builtin_trap();30 }31 // Ensure strcpy null terminates dest32 if (dest[i] != src[i]) __builtin_trap();33 34 delete[] dest;35 36 return 0;37}38 39