1 /* e_os2.h */ 2 /* ==================================================================== 3 * Copyright (c) 1998-2000 The OpenSSL Project. 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 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * openssl-core@openssl.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * (eay@cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh@cryptsoft.com). 53 * 54 */ 55 56 #include <openssl/opensslconf.h> 57 58 #ifndef HEADER_E_OS2_H 59 # define HEADER_E_OS2_H 60 61 #ifdef __cplusplus 62 extern "C" { 63 #endif 64 65 /****************************************************************************** 66 * Detect operating systems. This probably needs completing. 67 * The result is that at least one OPENSSL_SYS_os macro should be defined. 68 * However, if none is defined, Unix is assumed. 69 **/ 70 71 # define OPENSSL_SYS_UNIX 72 73 /* ---------------------- Macintosh, before MacOS X ----------------------- */ 74 # if defined(__MWERKS__) && defined(macintosh) || defined(OPENSSL_SYSNAME_MAC) 75 # undef OPENSSL_SYS_UNIX 76 # define OPENSSL_SYS_MACINTOSH_CLASSIC 77 # endif 78 79 /* ---------------------- NetWare ----------------------------------------- */ 80 # if defined(NETWARE) || defined(OPENSSL_SYSNAME_NETWARE) 81 # undef OPENSSL_SYS_UNIX 82 # define OPENSSL_SYS_NETWARE 83 # endif 84 85 /* --------------------- Microsoft operating systems ---------------------- */ 86 87 /* 88 * Note that MSDOS actually denotes 32-bit environments running on top of 89 * MS-DOS, such as DJGPP one. 90 */ 91 # if defined(OPENSSL_SYSNAME_MSDOS) 92 # undef OPENSSL_SYS_UNIX 93 # define OPENSSL_SYS_MSDOS 94 # endif 95 96 /* 97 * For 32 bit environment, there seems to be the CygWin environment and then 98 * all the others that try to do the same thing Microsoft does... 99 */ 100 # if defined(OPENSSL_SYSNAME_UWIN) 101 # undef OPENSSL_SYS_UNIX 102 # define OPENSSL_SYS_WIN32_UWIN 103 # else 104 # if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32) 105 # undef OPENSSL_SYS_UNIX 106 # define OPENSSL_SYS_WIN32_CYGWIN 107 # else 108 # if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32) 109 # undef OPENSSL_SYS_UNIX 110 # define OPENSSL_SYS_WIN32 111 # endif 112 # if defined(_WIN64) || defined(OPENSSL_SYSNAME_WIN64) 113 # undef OPENSSL_SYS_UNIX 114 # if !defined(OPENSSL_SYS_WIN64) 115 # define OPENSSL_SYS_WIN64 116 # endif 117 # endif 118 # if defined(OPENSSL_SYSNAME_WINNT) 119 # undef OPENSSL_SYS_UNIX 120 # define OPENSSL_SYS_WINNT 121 # endif 122 # if defined(OPENSSL_SYSNAME_WINCE) 123 # undef OPENSSL_SYS_UNIX 124 # define OPENSSL_SYS_WINCE 125 # endif 126 # endif 127 # endif 128 129 /* Anything that tries to look like Microsoft is "Windows" */ 130 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE) 131 # undef OPENSSL_SYS_UNIX 132 # define OPENSSL_SYS_WINDOWS 133 # ifndef OPENSSL_SYS_MSDOS 134 # define OPENSSL_SYS_MSDOS 135 # endif 136 # endif 137 138 /* 139 * DLL settings. This part is a bit tough, because it's up to the 140 * application implementor how he or she will link the application, so it 141 * requires some macro to be used. 142 */ 143 # ifdef OPENSSL_SYS_WINDOWS 144 # ifndef OPENSSL_OPT_WINDLL 145 # if defined(_WINDLL) /* This is used when building OpenSSL to 146 * indicate that DLL linkage should be used */ 147 # define OPENSSL_OPT_WINDLL 148 # endif 149 # endif 150 # endif 151 152 /* ------------------------------- OpenVMS -------------------------------- */ 153 # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS) 154 # undef OPENSSL_SYS_UNIX 155 # define OPENSSL_SYS_VMS 156 # if defined(__DECC) 157 # define OPENSSL_SYS_VMS_DECC 158 # elif defined(__DECCXX) 159 # define OPENSSL_SYS_VMS_DECC 160 # define OPENSSL_SYS_VMS_DECCXX 161 # else 162 # define OPENSSL_SYS_VMS_NODECC 163 # endif 164 # endif 165 166 /* -------------------------------- OS/2 ---------------------------------- */ 167 # if defined(__EMX__) || defined(__OS2__) 168 # undef OPENSSL_SYS_UNIX 169 # define OPENSSL_SYS_OS2 170 # endif 171 172 /* -------------------------------- Unix ---------------------------------- */ 173 # ifdef OPENSSL_SYS_UNIX 174 # if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX) 175 # define OPENSSL_SYS_LINUX 176 # endif 177 # ifdef OPENSSL_SYSNAME_MPE 178 # define OPENSSL_SYS_MPE 179 # endif 180 # ifdef OPENSSL_SYSNAME_SNI 181 # define OPENSSL_SYS_SNI 182 # endif 183 # ifdef OPENSSL_SYSNAME_ULTRASPARC 184 # define OPENSSL_SYS_ULTRASPARC 185 # endif 186 # ifdef OPENSSL_SYSNAME_NEWS4 187 # define OPENSSL_SYS_NEWS4 188 # endif 189 # ifdef OPENSSL_SYSNAME_MACOSX 190 # define OPENSSL_SYS_MACOSX 191 # endif 192 # ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY 193 # define OPENSSL_SYS_MACOSX_RHAPSODY 194 # define OPENSSL_SYS_MACOSX 195 # endif 196 # ifdef OPENSSL_SYSNAME_SUNOS 197 # define OPENSSL_SYS_SUNOS 198 # endif 199 # if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY) 200 # define OPENSSL_SYS_CRAY 201 # endif 202 # if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX) 203 # define OPENSSL_SYS_AIX 204 # endif 205 # endif 206 207 /* -------------------------------- VOS ----------------------------------- */ 208 # ifdef OPENSSL_SYSNAME_VOS 209 # define OPENSSL_SYS_VOS 210 # endif 211 212 /* ------------------------------ VxWorks --------------------------------- */ 213 # ifdef OPENSSL_SYSNAME_VXWORKS 214 # define OPENSSL_SYS_VXWORKS 215 # endif 216 217 /** 218 * That's it for OS-specific stuff 219 *****************************************************************************/ 220 221 /* Specials for I/O an exit */ 222 # ifdef OPENSSL_SYS_MSDOS 223 # define OPENSSL_UNISTD_IO <io.h> 224 # define OPENSSL_DECLARE_EXIT extern void exit(int); 225 # else 226 # define OPENSSL_UNISTD_IO OPENSSL_UNISTD 227 # define OPENSSL_DECLARE_EXIT /* declared in unistd.h */ 228 # endif 229 230 /*- 231 * Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare 232 * certain global symbols that, with some compilers under VMS, have to be 233 * defined and declared explicitely with globaldef and globalref. 234 * Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare 235 * DLL exports and imports for compilers under Win32. These are a little 236 * more complicated to use. Basically, for any library that exports some 237 * global variables, the following code must be present in the header file 238 * that declares them, before OPENSSL_EXTERN is used: 239 * 240 * #ifdef SOME_BUILD_FLAG_MACRO 241 * # undef OPENSSL_EXTERN 242 * # define OPENSSL_EXTERN OPENSSL_EXPORT 243 * #endif 244 * 245 * The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL 246 * have some generally sensible values, and for OPENSSL_EXTERN to have the 247 * value OPENSSL_IMPORT. 248 */ 249 250 # if defined(OPENSSL_SYS_VMS_NODECC) 251 # define OPENSSL_EXPORT globalref 252 # define OPENSSL_IMPORT globalref 253 # define OPENSSL_GLOBAL globaldef 254 # elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL) 255 # define OPENSSL_EXPORT extern __declspec(dllexport) 256 # define OPENSSL_IMPORT extern __declspec(dllimport) 257 # define OPENSSL_GLOBAL 258 # else 259 # define OPENSSL_EXPORT extern 260 # define OPENSSL_IMPORT extern 261 # define OPENSSL_GLOBAL 262 # endif 263 # define OPENSSL_EXTERN OPENSSL_IMPORT 264 265 /*- 266 * Macros to allow global variables to be reached through function calls when 267 * required (if a shared library version requires it, for example. 268 * The way it's done allows definitions like this: 269 * 270 * // in foobar.c 271 * OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0) 272 * // in foobar.h 273 * OPENSSL_DECLARE_GLOBAL(int,foobar); 274 * #define foobar OPENSSL_GLOBAL_REF(foobar) 275 */ 276 # ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION 277 # define OPENSSL_IMPLEMENT_GLOBAL(type,name) \ 278 extern type _hide_##name; \ 279 type *_shadow_##name(void) { return &_hide_##name; } \ 280 static type _hide_##name 281 # define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void) 282 # define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name())) 283 # else 284 # define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name 285 # define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name 286 # define OPENSSL_GLOBAL_REF(name) _shadow_##name 287 # endif 288 289 #ifdef __cplusplus 290 } 291 #endif 292 #endif 293