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-exception |
6 | // |
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 | |
19 | namespace LIBC_NAMESPACE_DECL { |
20 | |
21 | LLVM_LIBC_FUNCTION(int, creat, (const char *path, int mode_flags)) { |
22 | #ifdef SYS_open |
23 | int fd = LIBC_NAMESPACE::syscall_impl<int>( |
24 | SYS_open, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags); |
25 | #else |
26 | int fd = LIBC_NAMESPACE::syscall_impl<int>( |
27 | SYS_openat, AT_FDCWD, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags); |
28 | #endif |
29 | |
30 | if (fd > 0) |
31 | return fd; |
32 | |
33 | libc_errno = -fd; |
34 | return -1; |
35 | } |
36 | |
37 | } // namespace LIBC_NAMESPACE_DECL |
38 |