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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.
*/
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include "private/libc_logging.h"
extern "C" int __openat(int, const char*, int, int);
static inline int force_O_LARGEFILE(int flags) {
#if __LP64__
return flags; // No need, and aarch64's strace gets confused.
#else
return flags | O_LARGEFILE;
#endif
}
int creat(const char* pathname, mode_t mode) {
return open(pathname, O_CREAT | O_TRUNC | O_WRONLY, mode);
}
__strong_alias(creat64, creat);
int open(const char* pathname, int flags, ...) {
mode_t mode = 0;
if ((flags & O_CREAT) != 0) {
va_list args;
va_start(args, flags);
mode = static_cast<mode_t>(va_arg(args, int));
va_end(args);
}
return __openat(AT_FDCWD, pathname, force_O_LARGEFILE(flags), mode);
}
__strong_alias(open64, open);
int __open_2(const char* pathname, int flags) {
if (__predict_false((flags & O_CREAT) != 0)) {
__fortify_chk_fail("open(O_CREAT): called without specifying a mode", 0);
}
return __openat(AT_FDCWD, pathname, force_O_LARGEFILE(flags), 0);
}
int openat(int fd, const char *pathname, int flags, ...) {
mode_t mode = 0;
if ((flags & O_CREAT) != 0) {
va_list args;
va_start(args, flags);
mode = static_cast<mode_t>(va_arg(args, int));
va_end(args);
}
return __openat(fd, pathname, force_O_LARGEFILE(flags), mode);
}
__strong_alias(openat64, openat);
int __openat_2(int fd, const char* pathname, int flags) {
if ((flags & O_CREAT) != 0) {
__fortify_chk_fail("openat(O_CREAT): called without specifying a mode", 0);
}
return __openat(fd, pathname, force_O_LARGEFILE(flags), 0);
}
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