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e_os2.h
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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  *
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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  *
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23  * endorse or promote products derived from this software without
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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
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38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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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  * ([email protected]). This product includes software written by Tim
52  * Hudson ([email protected]).
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 /* Note that MSDOS actually denotes 32-bit environments running on top of
88  MS-DOS, such as DJGPP one. */
89 #if defined(OPENSSL_SYSNAME_MSDOS)
90 # undef OPENSSL_SYS_UNIX
91 # define OPENSSL_SYS_MSDOS
92 #endif
93 
94 /* For 32 bit environment, there seems to be the CygWin environment and then
95  all the others that try to do the same thing Microsoft does... */
96 #if defined(OPENSSL_SYSNAME_UWIN)
97 # undef OPENSSL_SYS_UNIX
98 # define OPENSSL_SYS_WIN32_UWIN
99 #else
100 # if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
101 # undef OPENSSL_SYS_UNIX
102 # define OPENSSL_SYS_WIN32_CYGWIN
103 # else
104 # if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32)
105 # undef OPENSSL_SYS_UNIX
106 # define OPENSSL_SYS_WIN32
107 # endif
108 # if defined(OPENSSL_SYSNAME_WINNT)
109 # undef OPENSSL_SYS_UNIX
110 # define OPENSSL_SYS_WINNT
111 # endif
112 # if defined(OPENSSL_SYSNAME_WINCE)
113 # undef OPENSSL_SYS_UNIX
114 # define OPENSSL_SYS_WINCE
115 # endif
116 # endif
117 #endif
118 
119 /* Anything that tries to look like Microsoft is "Windows" */
120 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
121 # undef OPENSSL_SYS_UNIX
122 # define OPENSSL_SYS_WINDOWS
123 # ifndef OPENSSL_SYS_MSDOS
124 # define OPENSSL_SYS_MSDOS
125 # endif
126 #endif
127 
128 /* DLL settings. This part is a bit tough, because it's up to the application
129  implementor how he or she will link the application, so it requires some
130  macro to be used. */
131 #ifdef OPENSSL_SYS_WINDOWS
132 # ifndef OPENSSL_OPT_WINDLL
133 # if defined(_WINDLL) /* This is used when building OpenSSL to indicate that
134  DLL linkage should be used */
135 # define OPENSSL_OPT_WINDLL
136 # endif
137 # endif
138 #endif
139 
140 /* -------------------------------- OpenVMS -------------------------------- */
141 #if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS)
142 # undef OPENSSL_SYS_UNIX
143 # define OPENSSL_SYS_VMS
144 # if defined(__DECC)
145 # define OPENSSL_SYS_VMS_DECC
146 # elif defined(__DECCXX)
147 # define OPENSSL_SYS_VMS_DECC
148 # define OPENSSL_SYS_VMS_DECCXX
149 # else
150 # define OPENSSL_SYS_VMS_NODECC
151 # endif
152 #endif
153 
154 /* --------------------------------- OS/2 ---------------------------------- */
155 #if defined(__EMX__) || defined(__OS2__)
156 # undef OPENSSL_SYS_UNIX
157 # define OPENSSL_SYS_OS2
158 #endif
159 
160 /* --------------------------------- Unix ---------------------------------- */
161 #ifdef OPENSSL_SYS_UNIX
162 # if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX)
163 # define OPENSSL_SYS_LINUX
164 # endif
165 # ifdef OPENSSL_SYSNAME_MPE
166 # define OPENSSL_SYS_MPE
167 # endif
168 # ifdef OPENSSL_SYSNAME_SNI
169 # define OPENSSL_SYS_SNI
170 # endif
171 # ifdef OPENSSL_SYSNAME_ULTRASPARC
172 # define OPENSSL_SYS_ULTRASPARC
173 # endif
174 # ifdef OPENSSL_SYSNAME_NEWS4
175 # define OPENSSL_SYS_NEWS4
176 # endif
177 # ifdef OPENSSL_SYSNAME_MACOSX
178 # define OPENSSL_SYS_MACOSX
179 # endif
180 # ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY
181 # define OPENSSL_SYS_MACOSX_RHAPSODY
182 # define OPENSSL_SYS_MACOSX
183 # endif
184 # ifdef OPENSSL_SYSNAME_SUNOS
185 # define OPENSSL_SYS_SUNOS
186 #endif
187 # if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY)
188 # define OPENSSL_SYS_CRAY
189 # endif
190 # if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX)
191 # define OPENSSL_SYS_AIX
192 # endif
193 #endif
194 
195 /* --------------------------------- VOS ----------------------------------- */
196 #if defined(__VOS__) || defined(OPENSSL_SYSNAME_VOS)
197 # define OPENSSL_SYS_VOS
198 #ifdef __HPPA__
199 # define OPENSSL_SYS_VOS_HPPA
200 #endif
201 #ifdef __IA32__
202 # define OPENSSL_SYS_VOS_IA32
203 #endif
204 #endif
205 
206 /* ------------------------------- VxWorks --------------------------------- */
207 #ifdef OPENSSL_SYSNAME_VXWORKS
208 # define OPENSSL_SYS_VXWORKS
209 #endif
210 
211 /* --------------------------------- BeOS ---------------------------------- */
212 #if defined(__BEOS__)
213 # define OPENSSL_SYS_BEOS
214 # include <sys/socket.h>
215 # if defined(BONE_VERSION)
216 # define OPENSSL_SYS_BEOS_BONE
217 # else
218 # define OPENSSL_SYS_BEOS_R5
219 # endif
220 #endif
221 
227 /* Specials for I/O an exit */
228 #ifdef OPENSSL_SYS_MSDOS
229 # define OPENSSL_UNISTD_IO <io.h>
230 # define OPENSSL_DECLARE_EXIT extern void exit(int);
231 #else
232 # define OPENSSL_UNISTD_IO OPENSSL_UNISTD
233 # define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
234 #endif
235 
236 /* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
237  certain global symbols that, with some compilers under VMS, have to be
238  defined and declared explicitely with globaldef and globalref.
239  Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
240  DLL exports and imports for compilers under Win32. These are a little
241  more complicated to use. Basically, for any library that exports some
242  global variables, the following code must be present in the header file
243  that declares them, before OPENSSL_EXTERN is used:
244 
245  #ifdef SOME_BUILD_FLAG_MACRO
246  # undef OPENSSL_EXTERN
247  # define OPENSSL_EXTERN OPENSSL_EXPORT
248  #endif
249 
250  The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
251  have some generally sensible values, and for OPENSSL_EXTERN to have the
252  value OPENSSL_IMPORT.
253 */
254 
255 #if defined(OPENSSL_SYS_VMS_NODECC)
256 # define OPENSSL_EXPORT globalref
257 # define OPENSSL_IMPORT globalref
258 # define OPENSSL_GLOBAL globaldef
259 #elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
260 # define OPENSSL_EXPORT extern __declspec(dllexport)
261 # define OPENSSL_IMPORT extern __declspec(dllimport)
262 # define OPENSSL_GLOBAL
263 #else
264 # define OPENSSL_EXPORT extern
265 # define OPENSSL_IMPORT extern
266 # define OPENSSL_GLOBAL
267 #endif
268 #define OPENSSL_EXTERN OPENSSL_IMPORT
269 
270 /* Macros to allow global variables to be reached through function calls when
271  required (if a shared library version requires it, for example.
272  The way it's done allows definitions like this:
273 
274  // in foobar.c
275  OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0)
276  // in foobar.h
277  OPENSSL_DECLARE_GLOBAL(int,foobar);
278  #define foobar OPENSSL_GLOBAL_REF(foobar)
279 */
280 #ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
281 # define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) \
282  type *_shadow_##name(void) \
283  { static type _hide_##name=value; return &_hide_##name; }
284 # define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
285 # define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
286 #else
287 # define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) OPENSSL_GLOBAL type _shadow_##name=value;
288 # define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
289 # define OPENSSL_GLOBAL_REF(name) _shadow_##name
290 #endif
291 
292 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && macintosh==1 && !defined(MAC_OS_GUSI_SOURCE)
293 # define ossl_ssize_t long
294 #endif
295 
296 #ifdef OPENSSL_SYS_MSDOS
297 # define ossl_ssize_t long
298 #endif
299 
300 #if defined(NeXT) || defined(OPENSSL_SYS_NEWS4) || defined(OPENSSL_SYS_SUNOS)
301 # define ssize_t int
302 #endif
303 
304 #if defined(__ultrix) && !defined(ssize_t)
305 # define ossl_ssize_t int
306 #endif
307 
308 #ifndef ossl_ssize_t
309 # define ossl_ssize_t ssize_t
310 #endif
311 
312 #ifdef __cplusplus
313 }
314 #endif
315 #endif
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