1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #include <unistd.h> 29 #include <fcntl.h> 30 #include <stdarg.h> 31 #include <stdlib.h> 32 #include "libc_logging.h" 33 34 extern int __openat(int, const char*, int, int); 35 36 int openat(int fd, const char *pathname, int flags, ...) 37 { 38 mode_t mode = 0; 39 40 flags |= O_LARGEFILE; 41 42 if (flags & O_CREAT) 43 { 44 va_list args; 45 46 va_start(args, flags); 47 mode = (mode_t) va_arg(args, int); 48 va_end(args); 49 } 50 51 return __openat(fd, pathname, flags, mode); 52 } 53 54 int __openat_2(int fd, const char *pathname, int flags) 55 { 56 if (flags & O_CREAT) { 57 __fortify_chk_fail("openat(O_CREAT) called without specifying a mode", 0); 58 } 59 60 flags |= O_LARGEFILE; 61 62 return __openat(fd, pathname, flags, 0); 63 } 64
