1 /*- 2 * Copyright (c) 2003-2007 Tim Kientzle 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD: src/lib/libarchive/archive_platform.h,v 1.32 2008/12/06 05:53:05 kientzle Exp $ 26 */ 27 28 /* 29 * This header is the first thing included in any of the libarchive 30 * source files. As far as possible, platform-specific issues should 31 * be dealt with here and not within individual source files. I'm 32 * actively trying to minimize #if blocks within the main source, 33 * since they obfuscate the code. 34 */ 35 36 #ifndef ARCHIVE_PLATFORM_H_INCLUDED 37 #define ARCHIVE_PLATFORM_H_INCLUDED 38 39 /* archive.h and archive_entry.h require this. */ 40 #define __LIBARCHIVE_BUILD 1 41 42 #if defined(PLATFORM_CONFIG_H) 43 /* Use hand-built config.h in environments that need it. */ 44 #include PLATFORM_CONFIG_H 45 #elif defined(HAVE_CONFIG_H) 46 /* Most POSIX platforms use the 'configure' script to build config.h */ 47 #include "config.h" 48 #else 49 /* Warn if the library hasn't been (automatically or manually) configured. */ 50 #error Oops: No config.h and no pre-built configuration in archive_platform.h. 51 #endif 52 53 /* 54 * The config files define a lot of feature macros. The following 55 * uses those macros to select/define replacements and include key 56 * headers as required. 57 */ 58 59 /* No non-FreeBSD platform will have __FBSDID, so just define it here. */ 60 #ifdef __FreeBSD__ 61 #include <sys/cdefs.h> /* For __FBSDID */ 62 #else 63 /* Just leaving this macro replacement empty leads to a dangling semicolon. */ 64 #define __FBSDID(a) struct _undefined_hack 65 #endif 66 67 /* Try to get standard C99-style integer type definitions. */ 68 #if HAVE_INTTYPES_H 69 #include <inttypes.h> 70 #endif 71 #if HAVE_STDINT_H 72 #include <stdint.h> 73 #endif 74 75 /* Some platforms lack the standard *_MAX definitions. */ 76 #if !HAVE_DECL_SIZE_MAX 77 #define SIZE_MAX (~(size_t)0) 78 #endif 79 #if !HAVE_DECL_SSIZE_MAX 80 #define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1)) 81 #endif 82 #if !HAVE_DECL_UINT32_MAX 83 #define UINT32_MAX (~(uint32_t)0) 84 #endif 85 #if !HAVE_DECL_UINT64_MAX 86 #define UINT64_MAX (~(uint64_t)0) 87 #endif 88 #if !HAVE_DECL_INT64_MAX 89 #define INT64_MAX ((int64_t)(UINT64_MAX >> 1)) 90 #endif 91 #if !HAVE_DECL_INT64_MIN 92 #define INT64_MIN ((int64_t)(~INT64_MAX)) 93 #endif 94 95 /* 96 * If this platform has <sys/acl.h>, acl_create(), acl_init(), 97 * acl_set_file(), and ACL_USER, we assume it has the rest of the 98 * POSIX.1e draft functions used in archive_read_extract.c. 99 */ 100 #if HAVE_SYS_ACL_H && HAVE_ACL_CREATE_ENTRY && HAVE_ACL_INIT && HAVE_ACL_SET_FILE && HAVE_ACL_USER 101 #define HAVE_POSIX_ACL 1 102 #endif 103 104 /* 105 * If we can't restore metadata using a file descriptor, then 106 * for compatibility's sake, close files before trying to restore metadata. 107 */ 108 #if defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(HAVE_ACL_SET_FD) || defined(HAVE_ACL_SET_FD_NP) || defined(HAVE_FCHOWN) 109 #define CAN_RESTORE_METADATA_FD 110 #endif 111 112 /* Set up defaults for internal error codes. */ 113 #ifndef ARCHIVE_ERRNO_FILE_FORMAT 114 #if HAVE_EFTYPE 115 #define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE 116 #else 117 #if HAVE_EILSEQ 118 #define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ 119 #else 120 #define ARCHIVE_ERRNO_FILE_FORMAT EINVAL 121 #endif 122 #endif 123 #endif 124 125 #ifndef ARCHIVE_ERRNO_PROGRAMMER 126 #define ARCHIVE_ERRNO_PROGRAMMER EINVAL 127 #endif 128 129 #ifndef ARCHIVE_ERRNO_MISC 130 #define ARCHIVE_ERRNO_MISC (-1) 131 #endif 132 133 #endif /* !ARCHIVE_PLATFORM_H_INCLUDED */ 134