cosmopolitan/libc/calls/creat.c

37 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/sysv/consts/o.h"
/**
* Creates new file, returning open()'d file descriptor.
*
* @param file is a UTF-8 string, which is truncated if it exists
* @param mode is an octal user/group/other permission, e.g. 0755
* @return a number registered with the system to track the open file,
* which must be stored using a 64-bit type in order to support both
* System V and Windows, and must be closed later on using close()
* @see touch()
* @asyncsignalsafe
*/
nodiscard int creat(const char *file, uint32_t mode) {
return open(file, O_CREAT | O_WRONLY | O_TRUNC, mode);
}