| //===-- 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/memory_utils/memcpy_implementations.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)); |
| if (dest == nullptr) |
| return nullptr; |
| inline_memcpy(dest, src, len + 1); |
| dest[len] = '\0'; |
| return dest; |
| } |
| |
| } // namespace __llvm_libc |