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2 /* ====================================================================
3 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
56 #include <openssl/opensslconf.h>
58 #ifndef HEADER_E_OS2_H
59 #define HEADER_E_OS2_H
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.
71 #define OPENSSL_SYS_UNIX
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
79 /* ---------------------- Microsoft operating systems ---------------------- */
81 /* The 16 bit environments are pretty straightforward */
82 #if defined(OPENSSL_SYSNAME_WIN16) || defined(OPENSSL_SYSNAME_MSDOS)
83 # undef OPENSSL_SYS_UNIX
84 # define OPENSSL_SYS_MSDOS
86 #if defined(OPENSSL_SYSNAME_WIN16)
87 # undef OPENSSL_SYS_UNIX
88 # define OPENSSL_SYS_WIN16
91 /* For 32 bit environment, there seems to be the CygWin environment and then
92 all the others that try to do the same thing Microsoft does... */
93 #if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
94 # undef OPENSSL_SYS_UNIX
95 # define OPENSSL_SYS_WIN32_CYGWIN
97 # if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32)
98 # undef OPENSSL_SYS_UNIX
99 # define OPENSSL_SYS_WIN32
101 # if defined(OPENSSL_SYSNAME_WINNT)
102 # undef OPENSSL_SYS_UNIX
103 # define OPENSSL_SYS_WINNT
107 /* Anything that tries to look like Microsoft is "Windows" */
108 #if defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT)
109 # undef OPENSSL_SYS_UNIX
110 # define OPENSSL_SYS_WINDOWS
111 # ifndef OPENSSL_SYS_MSDOS
112 # define OPENSSL_SYS_MSDOS
116 /* -------------------------------- OpenVMS -------------------------------- */
117 #if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS)
118 # undef OPENSSL_SYS_UNIX
119 # define OPENSSL_SYS_VMS
121 # define OPENSSL_SYS_VMS_DECC
123 # define OPENSSL_SYS_VMS_NODECC
127 /* --------------------------------- Unix ---------------------------------- */
128 #ifdef OPENSSL_SYS_UNIX
129 # if defined(linus) || defined(OPENSSL_SYSNAME_LINUX)
130 # define OPENSSL_SYS_LINUX
132 # ifdef OPENSSL_SYSNAME_MPE
133 # define OPENSSL_SYS_MPE
135 # ifdef OPENSSL_SYSNAME_SNI
136 # define OPENSSL_SYS_SNI
138 # ifdef OPENSSL_SYSNAME_ULTRASPARC
139 # define OPENSSL_SYS_ULTRASPARC
141 # ifdef OPENSSL_SYSNAME_NEWS4
142 # define OPENSSL_SYS_NEWS4
144 # ifdef OPENSSL_SYSNAME_MACOSX
145 # define OPENSSL_SYS_MACOSX
147 # if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY)
148 # define OPENSSL_SYS_CRAY
150 # if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX)
151 # define OPENSSL_SYS_AIX
156 * That's it for OS-specific stuff
157 *****************************************************************************/
160 /* Specials for I/O an exit */
161 #ifdef OPENSSL_SYS_MSDOS
162 # define OPENSSL_UNISTD_IO <io.h>
163 # define OPENSSL_DECLARE_EXIT extern void exit(int);
165 # define OPENSSL_UNISTD_IO OPENSSL_UNISTD
166 # define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
169 /* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
170 certain global symbols that, with some compilers under VMS, have to be
171 defined and declared explicitely with globaldef and globalref.
172 Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
173 DLL exports and imports for compilers under Win32. These are a little
174 more complicated to use. Basically, for any library that exports some
175 global variables, the following code must be present in the header file
176 that declares them, before OPENSSL_EXTERN is used:
178 #ifdef SOME_BUILD_FLAG_MACRO
179 # undef OPENSSL_EXTERN
180 # define OPENSSL_EXTERN OPENSSL_EXPORT
183 The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
184 have some generally sensible values, and for OPENSSL_EXTERN to have the
185 value OPENSSL_IMPORT.
188 #if defined(OPENSSL_SYS_VMS_NODECC)
189 # define OPENSSL_EXPORT globalref
190 # define OPENSSL_IMPORT globalref
191 # define OPENSSL_GLOBAL globaldef
192 #elif defined(OPENSSL_SYS_WINDOWS)
193 # define OPENSSL_EXPORT extern _declspec(dllexport)
194 # define OPENSSL_IMPORT extern _declspec(dllimport)
195 # define OPENSSL_GLOBAL
197 # define OPENSSL_EXPORT extern
198 # define OPENSSL_IMPORT extern
199 # define OPENSSL_GLOBAL
201 #define OPENSSL_EXTERN OPENSSL_IMPORT
203 /* Macros to allow global variables to be reached through function calls when
204 required (if a shared library version requvres it, for example.
205 The way it's done allows definitions like this:
208 OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0;
210 OPENSSL_DECLARE_GLOBAL(int,foobar);
211 #define foobar OPENSSL_GLOBAL_REF(foobar)
213 #ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
214 # define OPENSSL_IMPLEMENT_GLOBAL(type,name) extern static type _hide_##name; \
215 type *_shadow_##name(void) { static type local_var; return &local_var; } \
216 static type _hide_##name
217 # define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
218 # define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
220 # define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name
221 # define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
222 # define OPENSSL_GLOBAL_REF(name) _shadow_##name