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 26 /* !!ONLY FOR USE INTERNALLY TO LIBARCHIVE!! */ 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 /* On macOS check for some symbols based on the deployment target version. */ 54 #if defined(__APPLE__) 55 # undef HAVE_FUTIMENS 56 # undef HAVE_UTIMENSAT 57 # include <AvailabilityMacros.h> 58 # if MAC_OS_X_VERSION_MIN_REQUIRED >= 101300 59 # define HAVE_FUTIMENS 1 60 # define HAVE_UTIMENSAT 1 61 # endif 62 #endif 63 64 /* For cygwin, to avoid missing LONG, ULONG, PUCHAR, ... definitions */ 65 #ifdef __CYGWIN__ 66 #include <windef.h> 67 #endif 68 69 /* It should be possible to get rid of this by extending the feature-test 70 * macros to cover Windows API functions, probably along with non-trivial 71 * refactoring of code to find structures that sit more cleanly on top of 72 * either Windows or Posix APIs. */ 73 #if (defined(__WIN32__) || defined(_WIN32) || defined(__WIN32)) && !defined(__CYGWIN__) 74 #include "archive_windows.h" 75 /* The C library on Windows specifies a calling convention for callback 76 * functions and exports; when we interact with them (capture pointers, 77 * call and pass function pointers) we need to match their calling 78 * convention. 79 * This only matters when libarchive is built with /Gr, /Gz or /Gv 80 * (which change the default calling convention.) */ 81 #define __LA_LIBC_CC __cdecl 82 #else 83 #define la_stat(path,stref) stat(path,stref) 84 #define __LA_LIBC_CC 85 #endif 86 87 /* 88 * The config files define a lot of feature macros. The following 89 * uses those macros to select/define replacements and include key 90 * headers as required. 91 */ 92 93 /* Try to get standard C99-style integer type definitions. */ 94 #if HAVE_INTTYPES_H 95 #include <inttypes.h> 96 #endif 97 #if HAVE_STDINT_H 98 #include <stdint.h> 99 #endif 100 101 /* Borland warns about its own constants! */ 102 #if defined(__BORLANDC__) 103 # if HAVE_DECL_UINT64_MAX 104 # undef UINT64_MAX 105 # undef HAVE_DECL_UINT64_MAX 106 # endif 107 # if HAVE_DECL_UINT64_MIN 108 # undef UINT64_MIN 109 # undef HAVE_DECL_UINT64_MIN 110 # endif 111 # if HAVE_DECL_INT64_MAX 112 # undef INT64_MAX 113 # undef HAVE_DECL_INT64_MAX 114 # endif 115 # if HAVE_DECL_INT64_MIN 116 # undef INT64_MIN 117 # undef HAVE_DECL_INT64_MIN 118 # endif 119 #endif 120 121 /* Some platforms lack the standard *_MAX definitions. */ 122 #if !HAVE_DECL_SIZE_MAX 123 #define SIZE_MAX (~(size_t)0) 124 #endif 125 #if !HAVE_DECL_SSIZE_MAX 126 #define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1)) 127 #endif 128 #if !HAVE_DECL_UINT32_MAX 129 #define UINT32_MAX (~(uint32_t)0) 130 #endif 131 #if !HAVE_DECL_INT32_MAX 132 #define INT32_MAX ((int32_t)(UINT32_MAX >> 1)) 133 #endif 134 #if !HAVE_DECL_INT32_MIN 135 #define INT32_MIN ((int32_t)(~INT32_MAX)) 136 #endif 137 #if !HAVE_DECL_UINT64_MAX 138 #define UINT64_MAX (~(uint64_t)0) 139 #endif 140 #if !HAVE_DECL_INT64_MAX 141 #define INT64_MAX ((int64_t)(UINT64_MAX >> 1)) 142 #endif 143 #if !HAVE_DECL_INT64_MIN 144 #define INT64_MIN ((int64_t)(~INT64_MAX)) 145 #endif 146 #if !HAVE_DECL_UINTMAX_MAX 147 #define UINTMAX_MAX (~(uintmax_t)0) 148 #endif 149 #if !HAVE_DECL_INTMAX_MAX 150 #define INTMAX_MAX ((intmax_t)(UINTMAX_MAX >> 1)) 151 #endif 152 #if !HAVE_DECL_INTMAX_MIN 153 #define INTMAX_MIN ((intmax_t)(~INTMAX_MAX)) 154 #endif 155 156 /* Some platforms lack the standard PRIxN/PRIdN definitions. */ 157 #if !HAVE_INTTYPES_H || !defined(PRIx32) || !defined(PRId32) 158 #ifndef PRIx32 159 #if SIZEOF_INT == 4 160 #define PRIx32 "x" 161 #elif SIZEOF_LONG == 4 162 #define PRIx32 "lx" 163 #else 164 #error No suitable 32-bit unsigned integer type found for this platform 165 #endif 166 #endif // PRIx32 167 #ifndef PRId32 168 #if SIZEOF_INT == 4 169 #define PRId32 "d" 170 #elif SIZEOF_LONG == 4 171 #define PRId32 "ld" 172 #else 173 #error No suitable 32-bit signed integer type found for this platform 174 #endif 175 #endif // PRId32 176 #endif // !HAVE_INTTYPES_H || !defined(PRIx32) || !defined(PRId32) 177 178 /* 179 * If we can't restore metadata using a file descriptor, then 180 * for compatibility's sake, close files before trying to restore metadata. 181 */ 182 #if defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(HAVE_ACL_SET_FD) || defined(HAVE_ACL_SET_FD_NP) || defined(HAVE_FCHOWN) 183 #define CAN_RESTORE_METADATA_FD 184 #endif 185 186 /* Set up defaults for internal error codes. */ 187 #ifndef ARCHIVE_ERRNO_FILE_FORMAT 188 #if HAVE_EFTYPE 189 #define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE 190 #else 191 #if HAVE_EILSEQ 192 #define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ 193 #else 194 #define ARCHIVE_ERRNO_FILE_FORMAT EINVAL 195 #endif 196 #endif 197 #endif 198 199 #ifndef ARCHIVE_ERRNO_PROGRAMMER 200 #define ARCHIVE_ERRNO_PROGRAMMER EINVAL 201 #endif 202 203 #ifndef ARCHIVE_ERRNO_MISC 204 #define ARCHIVE_ERRNO_MISC (-1) 205 #endif 206 207 #if defined(__GNUC__) && (__GNUC__ >= 7) 208 #define __LA_FALLTHROUGH __attribute__((fallthrough)) 209 #else 210 #define __LA_FALLTHROUGH 211 #endif 212 213 #endif /* !ARCHIVE_PLATFORM_H_INCLUDED */ 214
Indexes created Thu Jun 11 00:25:07 UTC 2026