75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* fcntl definition for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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*/
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/* make sure to include all global symbols */
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#include "nolibc.h"
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#ifndef _NOLIBC_FCNTL_H
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#define _NOLIBC_FCNTL_H
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#include "arch.h"
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#include "types.h"
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#include "sys.h"
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#define __nolibc_open_flags(_flags) ((_flags) | O_LARGEFILE)
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#define __nolibc_open_mode(_flags) \
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({ \
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mode_t _mode; \
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va_list args; \
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\
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va_start(args, (_flags)); \
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_mode = va_arg(args, mode_t); \
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va_end(args); \
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\
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_mode; \
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})
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/*
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* int openat(int dirfd, const char *path, int flags[, mode_t mode]);
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*/
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static __attribute__((unused))
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int _sys_openat(int dirfd, const char *path, int flags, mode_t mode)
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{
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return __nolibc_syscall4(__NR_openat, dirfd, path, flags, mode);
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}
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static __attribute__((unused))
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int openat(int dirfd, const char *path, int flags, ...)
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{
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return __sysret(_sys_openat(dirfd, path, __nolibc_open_flags(flags),
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__nolibc_open_mode(flags)));
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}
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/*
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* int open(const char *path, int flags[, mode_t mode]);
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*/
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static __attribute__((unused))
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int _sys_open(const char *path, int flags, mode_t mode)
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{
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return __nolibc_syscall4(__NR_openat, AT_FDCWD, path, flags, mode);
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}
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static __attribute__((unused))
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int open(const char *path, int flags, ...)
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{
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return __sysret(_sys_open(path, __nolibc_open_flags(flags), __nolibc_open_mode(flags)));
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}
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/*
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* int creat(const char *path, mode_t mode);
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*/
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static __attribute__((unused))
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int creat(const char *path, mode_t mode)
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{
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return open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
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}
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#endif /* _NOLIBC_FCNTL_H */
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