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//===-- strcpy_fuzz.cpp ---------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// Fuzzing test for llvm-libc strcpy implementation.
///
//===----------------------------------------------------------------------===//
#include "src/string/strcpy.h"
#include <stdint.h>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
// Validate input
if (!size) return 0;
if (data[size - 1] != '\0') return 0;
const char *src = (const char *)data;
char *dest = new char[size];
if (!dest) __builtin_trap();
LIBC_NAMESPACE::strcpy(dest, src);
size_t i;
for (i = 0; src[i] != '\0'; i++) {
// Ensure correctness of strcpy
if (dest[i] != src[i]) __builtin_trap();
}
// Ensure strcpy null terminates dest
if (dest[i] != src[i]) __builtin_trap();
delete[] dest;
return 0;
}
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