30 lines · cpp
1//===-- Linux implementation of rename ------------------------------------===//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#include "src/stdio/rename.h"10#include "hdr/fcntl_macros.h"11#include "src/__support/OSUtil/syscall.h" // For internal syscall function.12#include "src/__support/common.h"13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include <sys/syscall.h> // For syscall numbers.16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(int, rename, (const char *oldpath, const char *newpath)) {20 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_renameat2, AT_FDCWD, oldpath,21 AT_FDCWD, newpath, 0);22 23 if (ret >= 0)24 return 0;25 libc_errno = -ret;26 return -1;27}28 29} // namespace LIBC_NAMESPACE_DECL30