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//===-- Implementation of strndup -----------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "src/string/strndup.h"
#include "src/string/memcpy.h"
#include "src/string/string_utils.h"
#include "src/__support/common.h"
#include <stddef.h>
#include <stdlib.h>
namespace __llvm_libc {
LLVM_LIBC_FUNCTION(char *, strndup, (const char *src, size_t size)) {
if (src == nullptr)
return nullptr;
size_t len = internal::string_length(src);
if (len > size)
len = size;
char *dest = reinterpret_cast<char *>(::malloc(len + 1)); // NOLINT
if (dest == nullptr)
return nullptr;
char *result =
reinterpret_cast<char *>(__llvm_libc::memcpy(dest, src, len + 1));
result[len] = '\0';
return result;
}
} // namespace __llvm_libc
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