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- /*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _FCNTL_H
- #define _FCNTL_H
- #include <sys/cdefs.h>
- #include <sys/types.h>
- #include <linux/fcntl.h>
- #include <unistd.h> /* this is not required, but makes client code much happier */
- __BEGIN_DECLS
- #ifndef O_ASYNC
- #define O_ASYNC FASYNC
- #endif
- #ifndef O_CLOEXEC
- #define O_CLOEXEC 02000000
- #endif
- extern int open(const char* path, int mode, ...);
- extern int openat(int fd, const char* path, int mode, ...);
- extern int unlinkat(int dirfd, const char *pathname, int flags);
- extern int fcntl(int fd, int command, ...);
- extern int creat(const char* path, mode_t mode);
- #if defined(__BIONIC_FORTIFY_INLINE)
- extern void __creat_error()
- __attribute__((__error__ ("called with O_CREAT, but missing mode")));
- extern void __too_many_args_error()
- __attribute__((__error__ ("too many arguments")));
- extern int __open_real(const char *pathname, int flags, ...)
- __asm__(__USER_LABEL_PREFIX__ "open");
- extern int __open_2(const char *, int);
- __BIONIC_FORTIFY_INLINE
- int open(const char *pathname, int flags, ...) {
- if (__builtin_constant_p(flags)) {
- if ((flags & O_CREAT) && __builtin_va_arg_pack_len() == 0) {
- __creat_error(); // compile time error
- }
- }
- if (__builtin_va_arg_pack_len() > 1) {
- __too_many_args_error(); // compile time error
- }
- if ((__builtin_va_arg_pack_len() == 0) && !__builtin_constant_p(flags)) {
- return __open_2(pathname, flags);
- }
- return __open_real(pathname, flags, __builtin_va_arg_pack());
- }
- extern int __openat_2(int, const char *, int);
- extern int __openat_real(int dirfd, const char *pathname, int flags, ...)
- __asm__(__USER_LABEL_PREFIX__ "openat");
- __BIONIC_FORTIFY_INLINE
- int openat(int dirfd, const char *pathname, int flags, ...) {
- if (__builtin_constant_p(flags)) {
- if ((flags & O_CREAT) && __builtin_va_arg_pack_len() == 0) {
- __creat_error(); // compile time error
- }
- }
- if (__builtin_va_arg_pack_len() > 1) {
- __too_many_args_error(); // compile time error
- }
- if ((__builtin_va_arg_pack_len() == 0) && !__builtin_constant_p(flags)) {
- return __openat_2(dirfd, pathname, flags);
- }
- return __openat_real(dirfd, pathname, flags, __builtin_va_arg_pack());
- }
- #endif /* defined(__BIONIC_FORTIFY_INLINE) */
- __END_DECLS
- #endif /* _FCNTL_H */
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