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-exception 6 // 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/macros/config.h" 14 #include "src/errno/libc_errno.h" 15 #include <sys/syscall.h> // For syscall numbers. 16 17 namespace LIBC_NAMESPACE_DECL { 18 19 LLVM_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_DECL 30