38 lines · cpp
1//===-- Implementation of creat -------------------------------------------===//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/fcntl/creat.h"10 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 16#include "hdr/fcntl_macros.h"17#include <sys/syscall.h> // For syscall numbers.18 19namespace LIBC_NAMESPACE_DECL {20 21LLVM_LIBC_FUNCTION(int, creat, (const char *path, int mode_flags)) {22#ifdef SYS_open23 int fd = LIBC_NAMESPACE::syscall_impl<int>(24 SYS_open, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags);25#else26 int fd = LIBC_NAMESPACE::syscall_impl<int>(27 SYS_openat, AT_FDCWD, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags);28#endif29 30 if (fd < 0) {31 libc_errno = -fd;32 return -1;33 }34 return fd;35}36 37} // namespace LIBC_NAMESPACE_DECL38