| /* |
| * 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/bionic_fdtrack.h" |
| #include"private/bionic_fortify.h" |
| |
| extern"C"int __openat(int,constchar*,int,int); |
| |
| staticinlineint force_O_LARGEFILE(int flags){ |
| #if defined(__LP64__) |
| return flags;// No need, and aarch64's strace gets confused. |
| #else |
| return flags| O_LARGEFILE; |
| #endif |
| } |
| |
| staticinlinebool needs_mode(int flags){ |
| return((flags& O_CREAT)== O_CREAT)||((flags& O_TMPFILE)== O_TMPFILE); |
| } |
| |
| int creat(constchar* pathname,mode_t mode){ |
| return open(pathname, O_CREAT| O_TRUNC| O_WRONLY, mode); |
| } |
| __strong_alias(creat64, creat); |
| |
| int open(constchar* pathname,int flags,...){ |
| mode_t mode=0; |
| |
| if(needs_mode(flags)){ |
| va_list args; |
| va_start(args, flags); |
| mode=static_cast<mode_t>(va_arg(args,int)); |
| va_end(args); |
| } |
| |
| return FDTRACK_CREATE(__openat(AT_FDCWD, pathname, force_O_LARGEFILE(flags), mode)); |
| } |
| __strong_alias(open64, open); |
| |
| int __open_2(constchar* pathname,int flags){ |
| if(needs_mode(flags)) __fortify_fatal("open: called with O_CREAT/O_TMPFILE but no mode"); |
| return FDTRACK_CREATE_NAME("open", __openat(AT_FDCWD, pathname, force_O_LARGEFILE(flags),0)); |
| } |
| |
| int openat(int fd,constchar*pathname,int flags,...){ |
| mode_t mode=0; |
| |
| if(needs_mode(flags)){ |
| va_list args; |
| va_start(args, flags); |
| mode=static_cast<mode_t>(va_arg(args,int)); |
| va_end(args); |
| } |
| |
| return FDTRACK_CREATE_NAME("openat", __openat(fd, pathname, force_O_LARGEFILE(flags), mode)); |
| } |
| __strong_alias(openat64, openat); |
| |
| int __openat_2(int fd,constchar* pathname,int flags){ |
| if(needs_mode(flags)) __fortify_fatal("open: called with O_CREAT/O_TMPFILE but no mode"); |
| return FDTRACK_CREATE_NAME("openat", __openat(fd, pathname, force_O_LARGEFILE(flags),0)); |
| } |
