2 INSTALLATION ON THE WIN32 PLATFORM
3 ----------------------------------
5 Heres a few comments about building OpenSSL in Windows environments. Most of
6 this is tested on Win32 but it may also work in Win 3.1 with some
7 modification. See the end of this file for Eric's original comments.
9 You need Perl for Win32 (available from http://www.activestate.com/ActivePerl)
10 and one of the following C compilers:
14 * GNU C (Mingw32 or Cygwin32)
16 If you are compiling from a tarball or a CVS snapshot then the Win32 files
17 may well be not up to date. This may mean that some "tweaking" is required to
18 get it all to work. See the trouble shooting section later on for if (when?)
24 Firstly you should run Configure and build the Win32 Makefiles:
26 > perl Configure VC-WIN32
29 If you get errors about things not having numbers assigned then check the
30 troubleshooting section: you probably wont be able to compile it as it
33 Then from the VC++ environment at a prompt do:
35 > nmake -f ms\ntdll.mak
37 If all is well it should compile and you will have some DLLs and executables
38 in out32dll. If you want to try the tests then do:
45 There are various changes you can make to the Win32 compile environment. If
46 you have the MASM assembler 'ml' then you can try the assembly language code.
47 To do this remove the 'no-asm' part from do_ms.bat. You can also add 'debug'
48 here to make a debugging version of the library.
50 The default Win32 environment is to leave out any Windows NT specific
53 If you want to enable the NT specific features of OpenSSL (currently only the
54 logging BIO) follow the instructions above but call the batch file do_nt.bat
57 You can also build a static version of the library using the Makefile
60 Borland C++ builder 3 and 4
61 ---------------------------
63 * Setup PATH. First must be GNU make then bcb4/bin
73 To build OpenSSL, you need the Mingw32 package and GNU make.
75 * Compiler installation:
77 Mingw32 is available from <ftp://ftp.xraylith.wisc.edu/pub/khan/gnu-win32/
78 mingw32/egcs-1.1.2/egcs-1.1.2-mingw32.zip>. GNU make is at
79 <ftp://agnes.dida.physik.uni-essen.de/home/janjaap/mingw32/binaries/
80 make-3.76.1.zip>. Install both of them in C:\egcs-1.1.2 and run
81 C:\egcs-1.1.2\mingw32.bat to set the PATH.
85 > perl Configure Mingw32
88 This will create the library and binaries in out.
90 libcrypto.a and libssl.a are the static libraries. To use the DLLs,
91 link with libeay32.a and libssl32.a instead.
93 See troubleshooting if you get error messages about functions not having
96 * You can now try the tests:
104 Since the Win32 build is only occasionally tested it may not always compile
105 cleanly. If you get an error about functions not having numbers assigned
106 when you run ms\do_ms then this means the Win32 ordinal files are not up to
109 > perl util\mkdef.pl crypto ssl update
111 then ms\do_ms should not give a warning any more. However the numbers that
112 get assigned by this technique may not match those that eventually get
113 assigned in the CVS tree: so anything linked against this version of the
114 library may need to be recompiled.
116 If you get errors about unresolved externals then this means that either you
117 didn't read the note above about functions not having numbers assigned or
118 someone forgot to add a function to the header file.
120 In this latter case check out the header file to see if the function is
121 defined in the header file.
123 If you get warnings in the code then the compilation will halt.
125 The default Makefile for Win32 halts whenever any warnings occur. Since VC++
126 has its own ideas about warnings which don't always match up to other
127 environments this can happen. The best fix is to edit the file with the
128 warning in and fix it. Alternatively you can turn off the halt on warnings by
129 editing the CFLAG line in the Makefile and deleting the /WX option.
131 You might get compilation errors. Again you will have to fix these or report
134 One final comment about compiling applications linked to the OpenSSL library.
135 If you don't use the multithreaded DLL runtime library (/MD option) your
136 program will almost certainly crash: see the original SSLeay description
137 below for more details.
139 --------------------------------------------------------------------------------
140 The orignal Windows build instructions from SSLeay follow.
141 Note: some of this may be out of date and no longer applicable. In particular
142 the Crypto_malloc_init() comment appears to be wrong: you always need to use
143 the same runtime library as the DLL itself.
144 --------------------------------------------------------------------------------
148 The good news, to build SSLeay for the Microsft World
151 perl Configure VC-WIN16
152 nmake -f ms\w31dll.mak
155 perl Configure VC-WIN32
156 nmake -f ms\ntdll.mak
159 All builds were done using Microsofts Visual C++ 1.52c and [45].x.
160 If you are a borland person, you are probably going to have to help me
161 finish the stuff in util/pl/BC*pl
163 All builds were made under Windows NT - this means long filenames, so
164 you may have problems under Windows 3.1 but probably not under 95.
166 Because file pointers don't work in DLL's under Windows 3.1 (well at
167 least stdin/stdout don't and I don't like having to differentiate
168 between these and other file pointers), I now use the BIO file-pointer
169 module, which needs to be linked into your application. You can either
170 use the memory buffer BIO for IO, or compile bss_file.c into your
171 application, it is in the apps directory and is just a copy of
172 crypto/buffer/bss_file.c with #define APPS_WIN16 added.
173 I have not yet automated the makefile to automatically copy it into 'out'
174 for a win 3.1 build....
176 All callbacks passed into SSLeay for Windows 3.1 need to be of type
179 I don't support building with the pascal calling convention.
181 The DLL and static builds are large memory model.
183 To build static libraries for NT/95 or win 3.1
185 perl util/mk1mf.pl VC-WIN32 > mf-stat.nt
186 perl util/mk1mf.pl VC-WIN16 > mf-stat.w31
188 perl util/mk1mf.pl dll VC-WIN32 > mf-dll.nt
189 perl util/mk1mf.pl dll VC-WIN16 > mf-dll.w31
191 Again you will notice that if you dont have perl, you cannot do this.
193 Now the next importaint issue. Running Configure!
194 I have small assember code files for critical big number library operation
195 in crypto/bn/asm. There is, asm code, object files and uuencode
196 object files. They are
197 x86nt32.asm - 32bit flat memory model assember - suitable Win32
198 x86w16.asm - 16bit assember - used in the msdos build.
199 x86w32.asm - 32bit assember, win 3.1 segments, used for win16 build.
201 If you feel compelled to build the 16bit maths routines in the windows 3.1
203 perl Configure VC-W31-16
204 perl util/mk1mf.pl dll VC-W31-16 > mf-dll.w31
206 If you hate assember and don't want anything to do with it,
207 perl util/mk1mf.pl no-asm VC-WIN16 > mf-dll.w31
208 will work for any of the makefile generations.
210 There are more options to mk1mf.pl but these all leave the temporary
211 files in 'tmp' and the output files in 'out' by default.
213 The NT build is done for console mode.
215 The Windows 3.1 version of SSLeay uses quickwin, the interface is ugly
216 but it is better than nothing. If you want ugly, try doing anything
217 that involves getting a password. I decided to be ugly instead of
218 echoing characters. For Windows 3.1 I would just sugest using the
219 msdos version of the ssleay application for command line work.
220 The QuickWin build is primarily for testing.
222 For both NT and Windows 3.1, I have not written the code so that
223 s_client, s_server can take input from the keyboard. You can happily
224 start applications up in separate windows, watch them handshake, and then sit
225 there for-ever. I have not had the time to get this working, and I've
226 been able to test things from a unix box to the NT box :-).
227 Try running ssleay s_server on the windows box
228 (with either -cert ../apps/server.pem -www)
229 and run ssleay s_time from another window.
230 This often stuffs up on Windows 3.1, but I'm not worried since this is
231 probably a problem with my demo applications, not the libraries.
233 After a build of one of the version of microsoft SSLeay,
234 'cd ms' and then run 'test'. This should check everything out and
235 even does a trial run of generating certificates.
236 'test.bat' requires that perl be install, you be in the ms directory
237 (not the test directory, thats for unix so stay out :-) and that the
238 build output directory be ../out
240 On a last note, you will probably get division by zero errors and
241 stuff after a build. This is due to your own inability to follow
244 The reasons for the problem is probably one of the following.
246 1) You did not run Configure. This is critical for windows 3.1 when
247 using assember. The values in crypto/bn/bn.h must match the
248 ones requred for the assember code. (remember that if you
249 edit crypto/bn/bn.h by hand, it will be clobered the next time
250 you run Configure by the contents of crypto/bn/bn.org).
251 SSLeay version -o will list the compile options.
252 For VC-WIN32 you need bn(64,32) or bn(32,32)
253 For VC-W31-32/VC-WIN16 you need bn(32,32)
254 For VC-W31-16 you need bn(32,16) or bn(16,16)
255 For VC-MSDOS you need bn(32,16) or bn(16,16).
257 The first number will be 2 times bigger than the second if
258 BN_LLONG is defined in bn.h and the size of the second number
259 depends on the 'bits' defined at the start of bn.h. Have a
260 look, it's all reasonably clear.
261 If you want to start messing with 8 bit builds and things like
262 that, build without the assember by re-generating a makefile
263 via 'perl util/mk1mf.pl no-asm'.
264 2) You tried to build under MS-DOS or Windows 3.1 using the /G3
265 option. Don't. It is buggy (thats why you just got that
266 error) and unless you want to work out which optimising flag
267 to turn off, I'm not going to help you :-). I also noticed
268 that code often ran slower when compiled with /G3.
269 3) Under NT/95, malloc goes stupid. You are probably linking with
270 the wrong library, there are problems if you mix the threaded
271 and non-threaded libraries (due to the DLL being staticly
272 linked with one and the applicaion using another.
274 Well hopefully thats most of the MS issues handled, see you in ssl-users :-).
279 For Windows 95/NT, add CRYPTO_malloc_init() to your program before any
280 calls to the SSLeay libraries. This function will insert callbacks so that
281 the SSLeay libraries will use the same malloc(), free() and realloc() as
282 your application so 'problem 3)' mentioned above will go away.
284 There is now DES assember for Windows NT/95. The file is
285 crypto/des/asm/win32.asm and replaces crypto/des/des_enc.c in the build.
287 There is also Blowfish assember for Windows NT/95. The file is
288 crypto/bf/asm/win32.asm and replaces crypto/bf/bf_enc.c in the build.