1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * attropen -- C library extension routine 31 */ 32 33 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 34 #pragma weak attropen64 = _attropen64 35 #else 36 #pragma weak attropen = _attropen 37 #endif 38 39 #include "synonyms.h" 40 #include <sys/types.h> 41 #include <sys/stat.h> 42 #include <fcntl.h> 43 #include <sys/errno.h> 44 #include <stdlib.h> 45 #include <errno.h> 46 #include <unistd.h> 47 #include <stdarg.h> 48 49 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 50 51 int 52 attropen64(const char *file, const char *attr, int oflag, ...) 53 { 54 int fd; 55 int attrfd; 56 int saverrno; 57 va_list ap; 58 59 va_start(ap, oflag); 60 61 if ((fd = open64(file, O_RDONLY|O_NONBLOCK)) == -1) { 62 va_end(ap); 63 return (-1); 64 } 65 66 if ((attrfd = openat64(fd, attr, oflag | O_XATTR, 67 va_arg(ap, mode_t))) == -1) { 68 saverrno = errno; 69 (void) close(fd); 70 errno = saverrno; 71 va_end(ap); 72 return (-1); 73 } 74 75 (void) close(fd); 76 va_end(ap); 77 return (attrfd); 78 } 79 80 #else 81 82 int 83 attropen(const char *file, const char *attr, int oflag, ...) 84 { 85 int fd; 86 int attrfd; 87 int saverrno; 88 va_list ap; 89 90 va_start(ap, oflag); 91 92 if ((fd = open(file, O_RDONLY|O_NONBLOCK)) == -1) { 93 va_end(ap); 94 return (-1); 95 } 96 97 if ((attrfd = openat(fd, attr, oflag | O_XATTR, 98 va_arg(ap, mode_t))) == -1) { 99 saverrno = errno; 100 (void) close(fd); 101 errno = saverrno; 102 va_end(ap); 103 return (-1); 104 } 105 106 (void) close(fd); 107 va_end(ap); 108 return (attrfd); 109 } 110 111 #endif /* _FILE_OFFSET_BITS == 64 */ 112