300 lines
11 KiB
Plaintext
300 lines
11 KiB
Plaintext
VMS Installation instructions
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written by Richard Levitte
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<richard@levitte.org>
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Intro:
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======
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This file is divided in the following parts:
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Requirements - Mandatory reading.
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Checking the distribution - Mandatory reading.
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Compilation - Mandatory reading.
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Logical names - Mandatory reading.
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Test - Mandatory reading.
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Installation - Mandatory reading.
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Backward portability - Read if it's an issue.
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Possible bugs or quirks - A few warnings on things that
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may go wrong or may surprise you.
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TODO - Things that are to come.
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Requirements:
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=============
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To build and install OpenSSL, you will need:
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* DEC C or some other ANSI C compiler. VAX C is *not* supported.
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[Note: OpenSSL has only been tested with DEC C. Compiling with
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a different ANSI C compiler may require some work]
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Checking the distribution:
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==========================
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There have been reports of places where the distribution didn't quite get
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through, for example if you've copied the tree from a NFS-mounted Unix
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mount point.
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The easiest way to check if everything got through as it should is to check
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for one of the following files:
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[.CRYPTO]OPENSSLCONF.H_IN
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[.CRYPTO]OPENSSLCONF_H.IN
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They should never exist both at once, but one of them should (preferably
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the first variant). If you can't find any of those two, something went
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wrong.
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The best way to get a correct distribution is to download the gzipped tar
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file from ftp://ftp.openssl.org/source/, use GUNZIP to uncompress it and
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use VMSTAR to unpack the resulting tar file.
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GUNZIP is available in many places on the net. One of the distribution
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points is the WKU software archive, ftp://ftp.wku.edu/vms/fileserv/ .
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VMSTAR is also available in many places on the net. The recommended place
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to find information about it is http://www.free.lp.se/vmstar/ .
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Compilation:
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============
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I've used the very good command procedures written by Robert Byer
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<byer@mail.all-net.net>, and just slightly modified them, making
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them slightly more general and easier to maintain.
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You can actually compile in almost any directory separately. Look
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for a command procedure name xxx-LIB.COM (in the library directories)
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or MAKExxx.COM (in the program directories) and read the comments at
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the top to understand how to use them. However, if you want to
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compile all you can get, the simplest is to use MAKEVMS.COM in the top
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directory. The syntax is the following:
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@MAKEVMS <option> <rsaref-p> <debug-p> [<compiler>]
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<option> must be one of the following:
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ALL Just build "everything".
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CONFIG Just build the "[.CRYPTO]OPENSSLCONF.H" file.
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BUILDINF Just build the "[.INCLUDE]BUILDINF.H" file.
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SOFTLINKS Just copies some files, to simulate Unix soft links.
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BUILDALL Same as ALL, except CONFIG, BUILDINF and SOFTLINKS aren't done.
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RSAREF Just build the "[.xxx.EXE.RSAREF]LIBRSAGLUE.OLB" library.
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CRYPTO Just build the "[.xxx.EXE.CRYPTO]LIBCRYPTO.OLB" library.
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SSL Just build the "[.xxx.EXE.SSL]LIBSSL.OLB" library.
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SSL_TASK Just build the "[.xxx.EXE.SSL]SSL_TASK.EXE" program.
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TEST Just build the "[.xxx.EXE.TEST]" test programs for OpenSSL.
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APPS Just build the "[.xxx.EXE.APPS]" application programs for OpenSSL.
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<rsaref-p> must be one of the following:
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RSAREF compile using the RSAREF Library
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NORSAREF compile without using RSAREF
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Note 0: The RSAREF library IS NO LONGER NEEDED. The RSA patent
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expires September 20, 2000, and RSA Security chose to make
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the algorithm public domain two weeks before that.
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Note 1: If you still want to use RSAREF, the library is NOT INCLUDED
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and you have to download it. RSA Security doesn't carry it
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any more, but there are a number of places where you can find
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it. You have to get the ".tar-Z" file as the ".zip" file
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doesn't have the directory structure stored. You have to
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extract the file into the [.RSAREF] directory as that is where
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the scripts will look for the files.
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Note 2: I have never done this, so I've no idea if it works or not.
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<debug-p> must be one of the following:
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DEBUG compile with debugging info (will not optimize)
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NODEBUG compile without debugging info (will optimize)
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<compiler> must be one of the following:
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DECC For DEC C.
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GNUC For GNU C.
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You will find the crypto library in [.xxx.EXE.CRYPTO], called LIBCRYPTO.OLB,
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where xxx is VAX or AXP. You will find the SSL library in [.xxx.EXE.SSL],
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named LIBSSL.OLB, and you will find a bunch of useful programs in
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[.xxx.EXE.APPS]. However, these shouldn't be used right off unless it's
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just to test them. For production use, make sure you install first, see
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Installation below.
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Note 1: Some programs in this package require a TCP/IP library.
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Note 2: if you want to compile the crypto library only, please make sure
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you have at least done a @MAKEVMS CONFIG, a @MAKEVMS BUILDINF and
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a @MAKEVMS SOFTLINKS. A lot of things will break if you don't.
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Logical names:
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==============
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There are a few things that can't currently be given through the command
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line. Instead, logical names are used.
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Currently, the logical names supported are:
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OPENSSL_NO_ASM with value YES, the assembler parts of OpenSSL will
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not be used. Instead, plain C implementations are
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used. This is good to try if something doesn't work.
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OPENSSL_NO_'alg' with value YES, the corresponding crypto algorithm
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will not be implemented. Supported algorithms to
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do this with are: RSA, DSA, DH, MD2, MD4, MD5, RIPEMD,
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SHA, DES, MDC2, CR2, RC4, RC5, IDEA, BF, CAST, HMAC,
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SSL2. So, for example, having the logical name
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OPENSSL_NO_RSA with the value YES means that the
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LIBCRYPTO.OLB library will not contain an RSA
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implementation.
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Test:
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=====
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Testing is very simple, just do the following:
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@[.TEST]TESTS
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If a test fails, try with defining the logical name OPENSSL_NO_ASM (yes,
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it's an ugly hack!) and rebuild. Please send a bug report to
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<openssl-bugs@openssl.org>, including the output of "openssl version -a"
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and of the failed test.
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Installation:
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=============
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Installation is easy, just do the following:
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@INSTALL <root>
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<root> is the directory in which everything will be installed,
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subdirectories, libraries, header files, programs and startup command
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procedures.
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N.B.: INSTALL.COM builds a new directory structure, different from
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the directory tree where you have now build OpenSSL.
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In the [.VMS] subdirectory of the installation, you will find the
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following command procedures:
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OPENSSL_STARTUP.COM
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defines all needed logical names. Takes one argument that
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tells it in what logical name table to insert the logical
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names. If you insert if it SYS$MANAGER:SYSTARTUP_VMS.COM, the
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call should look like this:
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@openssldev:[openssldir.VMS]OPENSSL_STARTUP "/SYSTEM"
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OPENSSL_UTILS.COM
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sets up the symbols to the applications. Should be called
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from for example SYS$MANAGER:SYLOGIN.COM
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The logical names that are set up are the following:
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SSLROOT a dotted concealed logical name pointing at the
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root directory.
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SSLCERTS Initially an empty directory, this is the default
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location for certificate files.
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SSLMISC Various scripts.
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SSLPRIVATE Initially an empty directory, this is the default
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location for private key files.
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SSLEXE Contains the openssl binary and a few other utility
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programs.
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SSLINCLUDE Contains the header files needed if you want to
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compile programs with libcrypto or libssl.
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SSLLIB Contains the OpenSSL library files (LIBCRYPTO.OLB
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and LIBSSL.OLB) themselves.
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OPENSSL Same as SSLINCLUDE. This is because the standard
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way to include OpenSSL header files from version
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0.9.3 and on is:
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#include <openssl/header.h>
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For more info on this issue, see the INSTALL. file
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(the NOTE in section 4 of "Installation in Detail").
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You don't need to "deleting old header files"!!!
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Backward portability:
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=====================
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One great problem when you build a library is making sure it will work
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on as many versions of VMS as possible. Especially, code compiled on
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OpenVMS version 7.x and above tend to be unusable in version 6.x or
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lower, because some C library routines have changed names internally
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(the C programmer won't usually see it, because the old name is
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maintained through C macros). One obvious solution is to make sure
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you have a development machine with an old enough version of OpenVMS.
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However, if you are stuck with a bunch of Alphas running OpenVMS version
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7.1, you seem to be out of luck. Fortunately, the DEC C header files
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are cluttered with conditionals that make some declarations and definitions
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dependent on the OpenVMS version or the C library version, *and* you
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can use those macros to simulate older OpenVMS or C library versions,
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by defining the macros _VMS_V6_SOURCE, __VMS_VER and __CTRL_VER with
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correct values. In the compilation scripts, I've provided the possibility
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for the user to influence the creation of such macros, through a bunch of
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symbols, all having names starting with USER_. Here's the list of them:
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USER_CCFLAGS - Used to give additional qualifiers to the
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compiler. It can't be used to define macros
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since the scripts will do such things as well.
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To do such things, use USER_CCDEFS.
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USER_CCDEFS - Used to define macros on the command line. The
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value of this symbol will be inserted inside a
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/DEFINE=(...).
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USER_CCDISABLEWARNINGS - Used to disable some warnings. The value is
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inserted inside a /DISABLE=WARNING=(...).
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So, to maintain backward compatibility with older VMS versions, do the
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following before you start compiling:
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$ USER_CCDEFS := _VMS_V6_SOURCE=1,__VMS_VER=60000000,__CRTL_VER=60000000
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$ USER_CCDISABLEWARNINGS := PREOPTW
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The USER_CCDISABLEWARNINGS is there because otherwise, DEC C will complain
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that those macros have been changed.
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Note: Currently, this is only useful for library compilation. The
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programs will still be linked with the current version of the
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C library shareable image, and will thus complain if they are
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faced with an older version of the same C library shareable image.
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This will probably be fixed in a future revision of OpenSSL.
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Possible bugs or quirks:
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========================
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I'm not perfectly sure all the programs will use the SSLCERTS:
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directory by default, it may very well be that you have to give them
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extra arguments. Please experiment.
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TODO:
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=====
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There are a few things that need to be worked out in the VMS version of
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OpenSSL, still:
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- Description files. ("Makefile's" :-))
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- Script code to link an already compiled build tree.
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- A VMSINSTALlable version (way in the future, unless someone else hacks).
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- shareable images (DLL for you Windows folks).
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There may be other things that I have missed and that may be desirable.
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Please send mail to <openssl-users@openssl.org> or to me directly if you
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have any ideas.
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--
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Richard Levitte <richard@levitte.org>
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2000-02-27
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