Fix (most) WIN32 warnings and errors.
[openssl.git] / util / mkdef.pl
index a8e5ab5..1e337ce 100755 (executable)
-#!/usr/local/bin/perl
+#!/usr/local/bin/perl -w
 #
 # generate a .def file
 #
 # It does this by parsing the header files and looking for the
-# non-prototyped functions.
+# prototyped functions: it then prunes the output.
 #
+# Intermediary files are created, call libeay.num and ssleay.num,...
+# Previously, they had the following format:
+#
+#      routine-name    nnnn
+#
+# But that isn't enough for a number of reasons, the first on being that
+# this format is (needlessly) very Win32-centric, and even then...
+# One of the biggest problems is that there's no information about what
+# routines should actually be used, which varies with what crypto algorithms
+# are disabled.  Also, some operating systems (for example VMS with VAX C)
+# need to keep track of the global variables as well as the functions.
+#
+# So, a remake of this script is done so as to include information on the
+# kind of symbol it is (function or variable) and what algorithms they're
+# part of.  This will allow easy translating to .def files or the corresponding
+# file in other operating systems (a .opt file for VMS, possibly with a .mar
+# file).
+#
+# The format now becomes:
+#
+#      routine-name    nnnn    info
+#
+# and the "info" part is actually a colon-separated string of fields with
+# the following meaning:
+#
+#      existence:platform:kind:algorithms
+#
+# - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
+#   found somewhere in the source, 
+# - "platforms" is empty if it exists on all platforms, otherwise it contains
+#   comma-separated list of the platform, just as they are if the symbol exists
+#   for those platforms, or prepended with a "!" if not.  This helps resolve
+#   symbol name variants for platforms where the names are too long for the
+#   compiler or linker, or if the systems is case insensitive and there is a
+#   clash, or the symbol is implemented differently (see
+#   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
+#   in the file crypto/symhacks.h.
+#   The semantics for the platforms is that every item is checked against the
+#   environment.  For the negative items ("!FOO"), if any of them is false
+#   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
+#   used.  For the positive itms, if all of them are false in the environment,
+#   the corresponding symbol can't be used.  Any combination of positive and
+#   negative items are possible, and of course leave room for some redundancy.
+# - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
+# - "algorithms" is a comma-separated list of algorithm names.  This helps
+#   exclude symbols that are part of an algorithm that some user wants to
+#   exclude.
+#
+
+my $debug=0;
+
+my $crypto_num= "util/libeay.num";
+my $ssl_num=    "util/ssleay.num";
+my $libname;
 
-$crypto_num="util/libeay.num";
-$ssl_num=   "util/ssleay.num";
+my $do_update = 0;
+my $do_rewrite = 1;
+my $do_crypto = 0;
+my $do_ssl = 0;
+my $do_ctest = 0;
+my $do_ctestall = 0;
+my $do_checkexist = 0;
 
-$W32=1;
-$NT=0;
-foreach (@ARGV)
+my $VMSVAX=0;
+my $VMSAlpha=0;
+my $VMS=0;
+my $W32=0;
+my $W16=0;
+my $NT=0;
+my $OS2=0;
+# Set this to make typesafe STACK definitions appear in DEF
+my $safe_stack_def = 0;
+
+my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
+                       "EXPORT_VAR_AS_FUNCTION" );
+my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
+my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
+                        "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
+                        "SHA256", "SHA512", "RIPEMD",
+                        "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA",
+                        "HMAC", "AES", "WHIRLPOOL",
+                        # Envelope "algorithms"
+                        "EVP", "X509", "ASN1_TYPEDEFS",
+                        # Helper "algorithms"
+                        "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
+                        "LOCKING",
+                        # External "algorithms"
+                        "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
+                        # Engines
+                        "STATIC_ENGINE", "ENGINE", "HW", "GMP",
+                        # TLS
+                        "TLSEXT", "PSK",
+                        # Deprecated functions
+                        "DEPRECATED" );
+
+my $options="";
+open(IN,"<Makefile") || die "unable to open Makefile!\n";
+while(<IN>) {
+    $options=$1 if (/^OPTIONS=(.*)$/);
+}
+close(IN);
+
+# The following ciphers may be excluded (by Configure). This means functions
+# defined with ifndef(NO_XXX) are not included in the .def file, and everything
+# in directory xxx is ignored.
+my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
+my $no_cast; my $no_whirlpool;
+my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
+my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
+my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
+my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
+my $no_psk; my $no_tlsext;
+
+
+foreach (@ARGV, split(/ /, $options))
        {
+       $debug=1 if $_ eq "debug";
        $W32=1 if $_ eq "32";
-       $W32=0 if $_ eq "16";
+       $W16=1 if $_ eq "16";
        if($_ eq "NT") {
                $W32 = 1;
                $NT = 1;
        }
+       if ($_ eq "VMS-VAX") {
+               $VMS=1;
+               $VMSVAX=1;
+       }
+       if ($_ eq "VMS-Alpha") {
+               $VMS=1;
+               $VMSAlpha=1;
+       }
+       $VMS=1 if $_ eq "VMS";
+       $OS2=1 if $_ eq "OS2";
+
        $do_ssl=1 if $_ eq "ssleay";
-       $do_ssl=1 if $_ eq "ssl";
+       if ($_ eq "ssl") {
+               $do_ssl=1; 
+               $libname=$_
+       }
        $do_crypto=1 if $_ eq "libeay";
-       $do_crypto=1 if $_ eq "crypto";
+       if ($_ eq "crypto") {
+               $do_crypto=1;
+               $libname=$_;
+       }
+       $no_static_engine=1 if $_ eq "no-static-engine";
+       $no_static_engine=0 if $_ eq "enable-static-engine";
        $do_update=1 if $_ eq "update";
+       $do_rewrite=1 if $_ eq "rewrite";
+       $do_ctest=1 if $_ eq "ctest";
+       $do_ctestall=1 if $_ eq "ctestall";
+       $do_checkexist=1 if $_ eq "exist";
+       #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
+
+       if    (/^no-rc2$/)      { $no_rc2=1; }
+       elsif (/^no-rc4$/)      { $no_rc4=1; }
+       elsif (/^no-rc5$/)      { $no_rc5=1; }
+       elsif (/^no-idea$/)     { $no_idea=1; }
+       elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
+       elsif (/^no-bf$/)       { $no_bf=1; }
+       elsif (/^no-cast$/)     { $no_cast=1; }
+       elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
+       elsif (/^no-md2$/)      { $no_md2=1; }
+       elsif (/^no-md4$/)      { $no_md4=1; }
+       elsif (/^no-md5$/)      { $no_md5=1; }
+       elsif (/^no-sha$/)      { $no_sha=1; }
+       elsif (/^no-ripemd$/)   { $no_ripemd=1; }
+       elsif (/^no-mdc2$/)     { $no_mdc2=1; }
+       elsif (/^no-rsa$/)      { $no_rsa=1; }
+       elsif (/^no-dsa$/)      { $no_dsa=1; }
+       elsif (/^no-dh$/)       { $no_dh=1; }
+       elsif (/^no-ec$/)       { $no_ec=1; }
+       elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
+       elsif (/^no-ecdh$/)     { $no_ecdh=1; }
+       elsif (/^no-hmac$/)     { $no_hmac=1; }
+       elsif (/^no-aes$/)      { $no_aes=1; }
+       elsif (/^no-evp$/)      { $no_evp=1; }
+       elsif (/^no-lhash$/)    { $no_lhash=1; }
+       elsif (/^no-stack$/)    { $no_stack=1; }
+       elsif (/^no-err$/)      { $no_err=1; }
+       elsif (/^no-buffer$/)   { $no_buffer=1; }
+       elsif (/^no-bio$/)      { $no_bio=1; }
+       #elsif (/^no-locking$/) { $no_locking=1; }
+       elsif (/^no-comp$/)     { $no_comp=1; }
+       elsif (/^no-dso$/)      { $no_dso=1; }
+       elsif (/^no-krb5$/)     { $no_krb5=1; }
+       elsif (/^no-engine$/)   { $no_engine=1; }
+       elsif (/^no-hw$/)       { $no_hw=1; }
+       elsif (/^no-gmp$/)      { $no_gmp=1; }
+       }
+
+
+if (!$libname) { 
+       if ($do_ssl) {
+               $libname="SSLEAY";
+       }
+       if ($do_crypto) {
+               $libname="LIBEAY";
        }
+}
+
+# If no platform is given, assume WIN32
+if ($W32 + $W16 + $VMS + $OS2 == 0) {
+       $W32 = 1;
+}
+
+# Add extra knowledge
+if ($W16) {
+       $no_fp_api=1;
+}
 
 if (!$do_ssl && !$do_crypto)
        {
-       print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 ]\n";
+       print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
        exit(1);
        }
 
@@ -37,251 +226,1001 @@ $max_ssl = $max_num;
 %crypto_list=&load_numbers($crypto_num);
 $max_crypto = $max_num;
 
-$ssl="ssl/ssl.h";
-
-$crypto ="crypto/crypto.h";
-$crypto.=" crypto/des/des.h";
-$crypto.=" crypto/idea/idea.h";
-$crypto.=" crypto/rc4/rc4.h";
-$crypto.=" crypto/rc5/rc5.h";
-$crypto.=" crypto/rc2/rc2.h";
-$crypto.=" crypto/bf/blowfish.h";
-$crypto.=" crypto/cast/cast.h";
-$crypto.=" crypto/md2/md2.h";
-$crypto.=" crypto/md5/md5.h";
-$crypto.=" crypto/mdc2/mdc2.h";
-$crypto.=" crypto/sha/sha.h";
-$crypto.=" crypto/ripemd/ripemd.h";
+my $ssl="ssl/ssl.h";
+$ssl.=" ssl/kssl.h";
+$ssl.=" ssl/tls1.h";
+
+my $crypto ="crypto/crypto.h";
+$crypto.=" crypto/o_dir.h";
+$crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
+$crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
+$crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
+$crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
+$crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
+$crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
+$crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
+$crypto.=" crypto/whrlpool/whrlpool.h" ;
+$crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
+$crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
+$crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
+$crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
+$crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
+$crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
+$crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 
 $crypto.=" crypto/bn/bn.h";
-$crypto.=" crypto/rsa/rsa.h";
-$crypto.=" crypto/dsa/dsa.h";
-$crypto.=" crypto/dh/dh.h";
-
-$crypto.=" crypto/stack/stack.h";
-$crypto.=" crypto/buffer/buffer.h";
-$crypto.=" crypto/bio/bio.h";
-$crypto.=" crypto/lhash/lhash.h";
+$crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
+$crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
+$crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
+$crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
+$crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
+$crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
+$crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
+
+$crypto.=" crypto/engine/engine.h"; # unless $no_engine;
+$crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
+$crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
+$crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
+$crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
+$crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 $crypto.=" crypto/conf/conf.h";
 $crypto.=" crypto/txt_db/txt_db.h";
 
-$crypto.=" crypto/evp/evp.h";
+$crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 $crypto.=" crypto/objects/objects.h";
 $crypto.=" crypto/pem/pem.h";
 #$crypto.=" crypto/meth/meth.h";
 $crypto.=" crypto/asn1/asn1.h";
+$crypto.=" crypto/asn1/asn1t.h";
 $crypto.=" crypto/asn1/asn1_mac.h";
-$crypto.=" crypto/err/err.h";
+$crypto.=" crypto/err/err.h" ; # unless $no_err;
 $crypto.=" crypto/pkcs7/pkcs7.h";
 $crypto.=" crypto/pkcs12/pkcs12.h";
 $crypto.=" crypto/x509/x509.h";
 $crypto.=" crypto/x509/x509_vfy.h";
 $crypto.=" crypto/x509v3/x509v3.h";
+$crypto.=" crypto/ts/ts.h";
 $crypto.=" crypto/rand/rand.h";
-$crypto.=" crypto/hmac/hmac.h";
-$crypto.=" crypto/comp/comp.h";
-$crypto.=" crypto/tmdiff.h";
+$crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
+$crypto.=" crypto/ocsp/ocsp.h";
+$crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
+$crypto.=" crypto/krb5/krb5_asn.h";
+$crypto.=" crypto/store/store.h";
+$crypto.=" crypto/pqueue/pqueue.h";
 
-$match{'NOPROTO'}=1;
-$match2{'PERL5'}=1;
+my $symhacks="crypto/symhacks.h";
 
-@ssl_func = &do_defs("SSLEAY", $ssl);
-@crypto_func = &do_defs("LIBEAY", $crypto);
+my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
+my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 
 if ($do_update) {
 
 if ($do_ssl == 1) {
-       open(OUT, ">>$ssl_num");
-       &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl, @ssl_func);
+
+       &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
+       if ($do_rewrite == 1) {
+               open(OUT, ">$ssl_num");
+               &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
+       } else {
+               open(OUT, ">>$ssl_num");
+       }
+       &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
        close OUT;
 }
 
 if($do_crypto == 1) {
-       open(OUT, ">>$crypto_num");
-       &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto, @crypto_func);
+
+       &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
+       if ($do_rewrite == 1) {
+               open(OUT, ">$crypto_num");
+               &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
+       } else {
+               open(OUT, ">>$crypto_num");
+       }
+       &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
        close OUT;
-}
+} 
+
+} elsif ($do_checkexist) {
+       &check_existing(*ssl_list, @ssl_symbols)
+               if $do_ssl == 1;
+       &check_existing(*crypto_list, @crypto_symbols)
+               if $do_crypto == 1;
+} elsif ($do_ctest || $do_ctestall) {
+
+       print <<"EOF";
+
+/* Test file to check all DEF file symbols are present by trying
+ * to link to all of them. This is *not* intended to be run!
+ */
+
+int main()
+{
+EOF
+       &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
+               if $do_ssl == 1;
+
+       &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
+               if $do_crypto == 1;
+
+       print "}\n";
 
 } else {
 
-       &print_def_file(*STDOUT,"SSLEAY",*ssl_list,@ssl_func)
+       &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
                if $do_ssl == 1;
 
-       &print_def_file(*STDOUT,"LIBEAY",*crypto_list,@crypto_func)
+       &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
                if $do_crypto == 1;
 
 }
 
 
 sub do_defs
-       {
-       local($name,$files)=@_;
-       local(@ret);
+{
+       my($name,$files,$symhacksfile)=@_;
+       my $file;
+       my @ret;
+       my %syms;
+       my %platform;           # For anything undefined, we assume ""
+       my %kind;               # For anything undefined, we assume "FUNCTION"
+       my %algorithm;          # For anything undefined, we assume ""
+       my %variant;
+       my %variant_cnt;        # To be able to allocate "name{n}" if "name"
+                               # is the same name as the original.
+       my $cpp;
+       my %unknown_algorithms = ();
 
-       $off=-1;
-       foreach $file (split(/\s+/,$files))
+       foreach $file (split(/\s+/,$symhacksfile." ".$files))
                {
-#              print STDERR "reading $file\n";
+               print STDERR "DEBUG: starting on $file:\n" if $debug;
                open(IN,"<$file") || die "unable to open $file:$!\n";
-               $depth=0;
-               $pr=-1;
-               @np="";
-               $/=undef;
-               $a=<IN>;
-               while (($i=index($a,"/*")) >= 0)
+               my $line = "", my $def= "";
+               my %tag = (
+                       (map { $_ => 0 } @known_platforms),
+                       (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
+                       (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
+                       NOPROTO         => 0,
+                       PERL5           => 0,
+                       _WINDLL         => 0,
+                       CONST_STRICT    => 0,
+                       TRUE            => 1,
+               );
+               my $symhacking = $file eq $symhacksfile;
+               my @current_platforms = ();
+               my @current_algorithms = ();
+
+               # params: symbol, alias, platforms, kind
+               # The reason to put this subroutine in a variable is that
+               # it will otherwise create it's own, unshared, version of
+               # %tag and %variant...
+               my $make_variant = sub
+               {
+                       my ($s, $a, $p, $k) = @_;
+                       my ($a1, $a2);
+
+                       print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
+                       if (defined($p))
                        {
-                       $j=index($a,"*/");
-                       last unless ($j >= 0);
-                       $a=substr($a,0,$i).substr($a,$j+2);
-               #       print "$i $j\n";
+                               $a1 = join(",",$p,
+                                          grep(!/^$/,
+                                               map { $tag{$_} == 1 ? $_ : "" }
+                                               @known_platforms));
                        }
-               foreach (split("\n",$a))
+                       else
                        {
-                       if (/^\#\s*ifndef (.*)/)
+                               $a1 = join(",",
+                                          grep(!/^$/,
+                                               map { $tag{$_} == 1 ? $_ : "" }
+                                               @known_platforms));
+                       }
+                       $a2 = join(",",
+                                  grep(!/^$/,
+                                       map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
+                                       @known_ossl_platforms));
+                       print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
+                       if ($a1 eq "") { $a1 = $a2; }
+                       elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
+                       if ($a eq $s)
+                       {
+                               if (!defined($variant_cnt{$s}))
                                {
-                               push(@tag,$1);
-                               $tag{$1}=-1;
-                               next;
+                                       $variant_cnt{$s} = 0;
                                }
-                       elsif (/^\#\s*if !defined\(([^\)]+)\)/)
+                               $variant_cnt{$s}++;
+                               $a .= "{$variant_cnt{$s}}";
+                       }
+                       my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
+                       my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
+                       if (!grep(/^$togrep$/,
+                                 split(/;/, defined($variant{$s})?$variant{$s}:""))) {
+                               if (defined($variant{$s})) { $variant{$s} .= ";"; }
+                               $variant{$s} .= $toadd;
+                       }
+                       print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
+               };
+
+               print STDERR "DEBUG: parsing ----------\n" if $debug;
+               while(<IN>) {
+                       if (/\/\* Error codes for the \w+ functions\. \*\//)
                                {
-                               push(@tag,$1);
-                               $tag{$1}=-1;
+                               undef @tag;
+                               last;
+                               }
+                       if ($line ne '') {
+                               $_ = $line . $_;
+                               $line = '';
+                       }
+
+                       if (/\\$/) {
+                               chomp; # remove eol
+                               chop; # remove ending backslash
+                               $line = $_;
                                next;
+                       }
+
+                       if(/\/\*/) {
+                               if (not /\*\//) {       # multiline comment...
+                                       $line = $_;     # ... just accumulate
+                                       next;
+                               } else {
+                                       s/\/\*.*?\*\///gs;# wipe it
                                }
-                       elsif (/^\#\s*ifdef (.*)/)
-                               {
-                               push(@tag,$1);
-                               $tag{$1}=1;
+                       }
+
+                       if ($cpp) {
+                               $cpp++ if /^#\s*if/;
+                               $cpp-- if /^#\s*endif/;
                                next;
+                       }
+                       $cpp = 1 if /^#.*ifdef.*cplusplus/;
+
+                       s/{[^{}]*}//gs;                      # ignore {} blocks
+                       print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
+                       print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
+                       if (/^\#\s*ifndef\s+(.*)/) {
+                               push(@tag,"-");
+                               push(@tag,$1);
+                               $tag{$1}=-1;
+                               print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
+                       } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
+                               push(@tag,"-");
+                               if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
+                                       my $tmp_1 = $1;
+                                       my $tmp_;
+                                       foreach $tmp_ (split '\&\&',$tmp_1) {
+                                               $tmp_ =~ /!defined\(([^\)]+)\)/;
+                                               print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
+                                               push(@tag,$1);
+                                               $tag{$1}=-1;
+                                       }
+                               } else {
+                                       print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
+                                       print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
+                                       push(@tag,$1);
+                                       $tag{$1}=-1;
                                }
-                       elsif (/^\#\s*if defined(.*)/)
-                               {
+                       } elsif (/^\#\s*ifdef\s+(\S*)/) {
+                               push(@tag,"-");
                                push(@tag,$1);
                                $tag{$1}=1;
-                               next;
+                               print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
+                       } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
+                               push(@tag,"-");
+                               if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
+                                       my $tmp_1 = $1;
+                                       my $tmp_;
+                                       foreach $tmp_ (split '\|\|',$tmp_1) {
+                                               $tmp_ =~ /defined\(([^\)]+)\)/;
+                                               print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
+                                               push(@tag,$1);
+                                               $tag{$1}=1;
+                                       }
+                               } else {
+                                       print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
+                                       print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
+                                       push(@tag,$1);
+                                       $tag{$1}=1;
+                               }
+                       } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
+                               my $tag_i = $#tag;
+                               while($tag[$tag_i] ne "-") {
+                                       if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
+                                               $tag{$tag[$tag_i]}=2;
+                                               print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
+                                       }
+                                       $tag_i--;
+                               }
+                       } elsif (/^\#\s*endif/) {
+                               my $tag_i = $#tag;
+                               while($tag_i > 0 && $tag[$tag_i] ne "-") {
+                                       my $t=$tag[$tag_i];
+                                       print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
+                                       if ($tag{$t}==2) {
+                                               $tag{$t}=-1;
+                                       } else {
+                                               $tag{$t}=0;
+                                       }
+                                       print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
+                                       pop(@tag);
+                                       if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
+                                               $t=$1;
+                                       } else {
+                                               $t="";
+                                       }
+                                       if ($t ne ""
+                                           && !grep(/^$t$/, @known_algorithms)) {
+                                               $unknown_algorithms{$t} = 1;
+                                               #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
+                                       }
+                                       $tag_i--;
                                }
-                       elsif (/^\#\s*endif/)
-                               {
-                               $tag{$tag[$#tag]}=0;
                                pop(@tag);
-                               next;
+                       } elsif (/^\#\s*else/) {
+                               my $tag_i = $#tag;
+                               while($tag[$tag_i] ne "-") {
+                                       my $t=$tag[$tag_i];
+                                       $tag{$t}= -$tag{$t};
+                                       print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
+                                       $tag_i--;
                                }
-                       elsif (/^\#\s*else/)
-                               {
-                               $t=$tag[$#tag];
-                               $tag{$t}= -$tag{$t};
+                       } elsif (/^\#\s*if\s+1/) {
+                               push(@tag,"-");
+                               # Dummy tag
+                               push(@tag,"TRUE");
+                               $tag{"TRUE"}=1;
+                               print STDERR "DEBUG: $file: found 1\n" if $debug;
+                       } elsif (/^\#\s*if\s+0/) {
+                               push(@tag,"-");
+                               # Dummy tag
+                               push(@tag,"TRUE");
+                               $tag{"TRUE"}=-1;
+                               print STDERR "DEBUG: $file: found 0\n" if $debug;
+                       } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
+                                && $symhacking && $tag{'TRUE'} != -1) {
+                               # This is for aliasing.  When we find an alias,
+                               # we have to invert
+                               &$make_variant($1,$2);
+                               print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
+                       }
+                       if (/^\#/) {
+                               @current_platforms =
+                                   grep(!/^$/,
+                                        map { $tag{$_} == 1 ? $_ :
+                                                  $tag{$_} == -1 ? "!".$_  : "" }
+                                        @known_platforms);
+                               push @current_platforms
+                                   , grep(!/^$/,
+                                          map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
+                                                    $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
+                                          @known_ossl_platforms);
+                               @current_algorithms =
+                                   grep(!/^$/,
+                                        map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
+                                        @known_algorithms);
+                               $def .=
+                                   "#INFO:"
+                                       .join(',',@current_platforms).":"
+                                           .join(',',@current_algorithms).";";
                                next;
-                               }
-#printf STDERR "$_\n%2d %2d %2d %2d %2d $W32\n",
-#$tag{'NOPROTO'},$tag{'FreeBSD'},$tag{'WIN16'},$tag{'PERL5'},$tag{'NO_FP_API'};
-
-                       $t=undef;
-                       if (/^extern .*;$/)
-                               { $t=&do_extern($name,$_); }
-                       elsif ( ($tag{'NOPROTO'} == 1) &&
-                               ($tag{'FreeBSD'} != 1) &&
-                               (($W32 && ($tag{'WIN16'} != 1)) ||
-                                (!$W32 && ($tag{'WIN16'} != -1))) &&
-                               ($tag{'PERL5'} != 1) &&
-#                              ($tag{'_WINDLL'} != -1) &&
-                               ((!$W32 && $tag{'_WINDLL'} != -1) ||
-                                ($W32 && $tag{'_WINDLL'} != 1)) &&
-                               ((($tag{'NO_FP_API'} != 1) && $W32) ||
-                                (($tag{'NO_FP_API'} != -1) && !$W32)))
-                               { $t=&do_line($name,$_); }
-                       else
-                               { $t=undef; }
-                       if (($t ne undef) && (!$done{$name,$t}))
-                               {
-                               $done{$name,$t}++;
-                               push(@ret,$t);
-#printf STDERR "one:$t\n" if $t =~ /BIO_/;
+                       }
+                       if ($tag{'TRUE'} != -1) {
+                               if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       $def .= "int d2i_$3(void);";
+                                       $def .= "int i2d_$3(void);";
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $2_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$2_it","$2_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       $def .= "int d2i_$3(void);";
+                                       $def .= "int i2d_$3(void);";
+                                       $def .= "int $3_free(void);";
+                                       $def .= "int $3_new(void);";
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $2_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$2_it","$2_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
+                                        /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
+                                       $def .= "int d2i_$1(void);";
+                                       $def .= "int i2d_$1(void);";
+                                       $def .= "int $1_free(void);";
+                                       $def .= "int $1_new(void);";
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $1_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$1_it","$1_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       $def .= "int d2i_$2(void);";
+                                       $def .= "int i2d_$2(void);";
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $2_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$2_it","$2_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
+                                       $def .= "int $1_free(void);";
+                                       $def .= "int $1_new(void);";
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       $def .= "int d2i_$2(void);";
+                                       $def .= "int i2d_$2(void);";
+                                       $def .= "int $2_free(void);";
+                                       $def .= "int $2_new(void);";
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $2_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$2_it","$2_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int $1_it;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("$1_it","$1_it",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
+                                       $def .= "int i2d_$1_NDEF(void);";
+                               } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
+                                       $def .= "int $1_print_ctx(void);";
+                                       next;
+                               } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       $def .= "int $2_print_ctx(void);";
+                                       next;
+                               } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
+                                       next;
+                               } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
+                                        /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
+                                        /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
+                                       # Things not in Win16
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!WIN16",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "int PEM_read_$1(void);";
+                                       $def .= "int PEM_write_$1(void);";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Things that are everywhere
+                                       $def .= "int PEM_read_bio_$1(void);";
+                                       $def .= "int PEM_write_bio_$1(void);";
+                                       next;
+                               } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
+                                        /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
+                                       # Things not in Win16
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!WIN16",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "int PEM_write_$1(void);";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Things that are everywhere
+                                       $def .= "int PEM_write_bio_$1(void);";
+                                       next;
+                               } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
+                                        /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
+                                       # Things not in Win16
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!WIN16",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "int PEM_read_$1(void);";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Things that are everywhere
+                                       $def .= "int PEM_read_bio_$1(void);";
+                                       next;
+                               } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
+                                       # Variant for platforms that do not
+                                       # have to access globale variables
+                                       # in shared libraries through functions
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       $def .= "OPENSSL_EXTERN int _shadow_$2;";
+                                       $def .=
+                                           "#INFO:"
+                                               .join(',',@current_platforms).":"
+                                                   .join(',',@current_algorithms).";";
+                                       # Variant for platforms that have to
+                                       # access globale variables in shared
+                                       # libraries through functions
+                                       &$make_variant("_shadow_$2","_shadow_$2",
+                                                     "EXPORT_VAR_AS_FUNCTION",
+                                                     "FUNCTION");
+                               } elsif ($tag{'CONST_STRICT'} != 1) {
+                                       if (/\{|\/\*|\([^\)]*$/) {
+                                               $line = $_;
+                                       } else {
+                                               $def .= $_;
+                                       }
                                }
                        }
+               }
                close(IN);
+
+               my $algs;
+               my $plays;
+
+               print STDERR "DEBUG: postprocessing ----------\n" if $debug;
+               foreach (split /;/, $def) {
+                       my $s; my $k = "FUNCTION"; my $p; my $a;
+                       s/^[\n\s]*//g;
+                       s/[\n\s]*$//g;
+                       next if(/\#undef/);
+                       next if(/typedef\W/);
+                       next if(/\#define/);
+
+                       # Reduce argument lists to empty ()
+                       # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
+                       while(/\(.*\)/s) {
+                               s/\([^\(\)]+\)/\{\}/gs;
+                               s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
+                       }
+                       # pretend as we didn't use curly braces: {} -> ()
+                       s/\{\}/\(\)/gs;
+
+                       s/STACK_OF\(\)/void/gs;
+
+                       print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
+                       if (/^\#INFO:([^:]*):(.*)$/) {
+                               $plats = $1;
+                               $algs = $2;
+                               print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
+                               next;
+                       } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
+                               $s = $1;
+                               $k = "VARIABLE";
+                               print STDERR "DEBUG: found external variable $s\n" if $debug;
+                       } elsif (/TYPEDEF_\w+_OF/s) {
+                               next;
+                       } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
+                               $s = $1;                # a function name!
+                               print STDERR "DEBUG: found function $s\n" if $debug;
+                       } elsif (/\(/ and not (/=/)) {
+                               print STDERR "File $file: cannot parse: $_;\n";
+                               next;
+                       } else {
+                               next;
+                       }
+
+                       $syms{$s} = 1;
+                       $kind{$s} = $k;
+
+                       $p = $plats;
+                       $a = $algs;
+                       $a .= ",BF" if($s =~ /EVP_bf/);
+                       $a .= ",CAST" if($s =~ /EVP_cast/);
+                       $a .= ",DES" if($s =~ /EVP_des/);
+                       $a .= ",DSA" if($s =~ /EVP_dss/);
+                       $a .= ",IDEA" if($s =~ /EVP_idea/);
+                       $a .= ",MD2" if($s =~ /EVP_md2/);
+                       $a .= ",MD4" if($s =~ /EVP_md4/);
+                       $a .= ",MD5" if($s =~ /EVP_md5/);
+                       $a .= ",RC2" if($s =~ /EVP_rc2/);
+                       $a .= ",RC4" if($s =~ /EVP_rc4/);
+                       $a .= ",RC5" if($s =~ /EVP_rc5/);
+                       $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
+                       $a .= ",SHA" if($s =~ /EVP_sha/);
+                       $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
+                       $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
+                       $a .= ",RSA" if($s =~ /RSAPrivateKey/);
+                       $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
+
+                       $platform{$s} =
+                           &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
+                       $algorithm{$s} .= ','.$a;
+
+                       if (defined($variant{$s})) {
+                               foreach $v (split /;/,$variant{$s}) {
+                                       (my $r, my $p, my $k) = split(/:/,$v);
+                                       my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
+                                       $syms{$r} = 1;
+                                       if (!defined($k)) { $k = $kind{$s}; }
+                                       $kind{$r} = $k."(".$s.")";
+                                       $algorithm{$r} = $algorithm{$s};
+                                       $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
+                                       $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
+                                       print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
+                               }
+                       }
+                       print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
                }
+       }
+
+       # Prune the returned symbols
+
+        delete $syms{"bn_dump1"};
+       $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
+
+       $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
+       $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
+       $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
+       $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
+
+       # Info we know about
+
+       push @ret, map { $_."\\".&info_string($_,"EXIST",
+                                             $platform{$_},
+                                             $kind{$_},
+                                             $algorithm{$_}) } keys %syms;
+
+       if (keys %unknown_algorithms) {
+               print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
+               print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
+       }
        return(@ret);
+}
+
+# Param: string of comma-separated platform-specs.
+sub reduce_platforms
+{
+       my ($platforms) = @_;
+       my $pl = defined($platforms) ? $platforms : "";
+       my %p = map { $_ => 0 } split /,/, $pl;
+       my $ret;
+
+       print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
+           if $debug;
+       # We do this, because if there's code like the following, it really
+       # means the function exists in all cases and should therefore be
+       # everywhere.  By increasing and decreasing, we may attain 0:
+       #
+       # ifndef WIN16
+       #    int foo();
+       # else
+       #    int _fat foo();
+       # endif
+       foreach $platform (split /,/, $pl) {
+               if ($platform =~ /^!(.*)$/) {
+                       $p{$1}--;
+               } else {
+                       $p{$platform}++;
+               }
+       }
+       foreach $platform (keys %p) {
+               if ($p{$platform} == 0) { delete $p{$platform}; }
        }
 
-sub do_line
-       {
-       local($file,$_)=@_;
-       local($n);
-
-       return(undef) if /^$/;
-       return(undef) if /^\s/;
-#printf STDERR "two:$_\n" if $_ =~ /BIO_/;
-       if (/(CRYPTO_get_locking_callback)/)
-               { return($1); }
-       elsif (/(CRYPTO_get_id_callback)/)
-               { return($1); }
-       elsif (/(CRYPTO_get_add_lock_callback)/)
-               { return($1); }
-       elsif (/(SSL_CTX_get_verify_callback)/)
-               { return($1); }
-       elsif (/(SSL_get_info_callback)/)
-               { return($1); }
-       elsif ((!$W32) && /(ERR_load_CRYPTO_strings)/)
-               { return("ERR_load_CRYPTOlib_strings"); }
-       elsif (!$W32 && /BIO_s_file/)
-               { return(undef); }
-       elsif (!$W32 && /BIO_new_file/)
-               { return(undef); }
-       elsif (!$W32 && /BIO_new_fp/)
-               { return(undef); }
-       elsif ($W32 && /BIO_s_file_internal/)
-               { return(undef); }
-       elsif ($W32 && /BIO_new_file_internal/)
-               { return(undef); }
-       elsif ($W32 && /BIO_new_fp_internal/)
-               { return(undef); }
-        elsif (/SSL_add_dir_cert_subjects_to_stack/)
-               { return(undef); }
-       elsif (!$NT && /BIO_s_log/)
-               { return(undef); }
-       else
-               {
-               /\s\**(\S+)\s*\(/;
-               $_ = $1;
-               tr/()*//d;
-#print STDERR "$1 : $_\n";
-               return($_);
+       delete $p{""};
+
+       $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
+       print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
+           if $debug;
+       return $ret;
+}
+
+sub info_string {
+       (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
+
+       my %a = defined($algorithms) ?
+           map { $_ => 1 } split /,/, $algorithms : ();
+       my $k = defined($kind) ? $kind : "FUNCTION";
+       my $ret;
+       my $p = &reduce_platforms($platforms);
+
+       delete $a{""};
+
+       $ret = $exist;
+       $ret .= ":".$p;
+       $ret .= ":".$k;
+       $ret .= ":".join(',',sort keys %a);
+       return $ret;
+}
+
+sub maybe_add_info {
+       (my $name, *nums, my @symbols) = @_;
+       my $sym;
+       my $new_info = 0;
+       my %syms=();
+
+       print STDERR "Updating $name info\n";
+       foreach $sym (@symbols) {
+               (my $s, my $i) = split /\\/, $sym;
+               if (defined($nums{$s})) {
+                       $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
+                       (my $n, my $dummy) = split /\\/, $nums{$s};
+                       if (!defined($dummy) || $i ne $dummy) {
+                               $nums{$s} = $n."\\".$i;
+                               $new_info++;
+                               print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
+                       }
                }
+               $syms{$s} = 1;
        }
 
-sub do_extern
+       my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
+       foreach $sym (@s) {
+               (my $n, my $i) = split /\\/, $nums{$sym};
+               if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
+                       $new_info++;
+                       print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
+               }
+       }
+       if ($new_info) {
+               print STDERR "$new_info old symbols got an info update\n";
+               if (!$do_rewrite) {
+                       print STDERR "You should do a rewrite to fix this.\n";
+               }
+       } else {
+               print STDERR "No old symbols needed info update\n";
+       }
+}
+
+# Param: string of comma-separated keywords, each possibly prefixed with a "!"
+sub is_valid
+{
+       my ($keywords_txt,$platforms) = @_;
+       my (@keywords) = split /,/,$keywords_txt;
+       my ($falsesum, $truesum) = (0, 1);
+
+       # Param: one keyword
+       sub recognise
        {
-       local($file,$_)=@_;
-       local($n);
+               my ($keyword,$platforms) = @_;
+
+               if ($platforms) {
+                       # platforms
+                       if ($keyword eq "VMS" && $VMS) { return 1; }
+                       if ($keyword eq "WIN32" && $W32) { return 1; }
+                       if ($keyword eq "WIN16" && $W16) { return 1; }
+                       if ($keyword eq "WINNT" && $NT) { return 1; }
+                       if ($keyword eq "OS2" && $OS2) { return 1; }
+                       # Special platforms:
+                       # EXPORT_VAR_AS_FUNCTION means that global variables
+                       # will be represented as functions.  This currently
+                       # only happens on VMS-VAX.
+                       if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
+                               return 1;
+                       }
+                       return 0;
+               } else {
+                       # algorithms
+                       if ($keyword eq "RC2" && $no_rc2) { return 0; }
+                       if ($keyword eq "RC4" && $no_rc4) { return 0; }
+                       if ($keyword eq "RC5" && $no_rc5) { return 0; }
+                       if ($keyword eq "IDEA" && $no_idea) { return 0; }
+                       if ($keyword eq "DES" && $no_des) { return 0; }
+                       if ($keyword eq "BF" && $no_bf) { return 0; }
+                       if ($keyword eq "CAST" && $no_cast) { return 0; }
+                       if ($keyword eq "MD2" && $no_md2) { return 0; }
+                       if ($keyword eq "MD4" && $no_md4) { return 0; }
+                       if ($keyword eq "MD5" && $no_md5) { return 0; }
+                       if ($keyword eq "SHA" && $no_sha) { return 0; }
+                       if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
+                       if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
+                       if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
+                       if ($keyword eq "RSA" && $no_rsa) { return 0; }
+                       if ($keyword eq "DSA" && $no_dsa) { return 0; }
+                       if ($keyword eq "DH" && $no_dh) { return 0; }
+                       if ($keyword eq "EC" && $no_ec) { return 0; }
+                       if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
+                       if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
+                       if ($keyword eq "HMAC" && $no_hmac) { return 0; }
+                       if ($keyword eq "AES" && $no_aes) { return 0; }
+                       if ($keyword eq "EVP" && $no_evp) { return 0; }
+                       if ($keyword eq "LHASH" && $no_lhash) { return 0; }
+                       if ($keyword eq "STACK" && $no_stack) { return 0; }
+                       if ($keyword eq "ERR" && $no_err) { return 0; }
+                       if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
+                       if ($keyword eq "BIO" && $no_bio) { return 0; }
+                       if ($keyword eq "COMP" && $no_comp) { return 0; }
+                       if ($keyword eq "DSO" && $no_dso) { return 0; }
+                       if ($keyword eq "KRB5" && $no_krb5) { return 0; }
+                       if ($keyword eq "ENGINE" && $no_engine) { return 0; }
+                       if ($keyword eq "HW" && $no_hw) { return 0; }
+                       if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
+                       if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
+                       if ($keyword eq "GMP" && $no_gmp) { return 0; }
+                       if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
+                       if ($keyword eq "PSK" && $no_psk) { return 0; }
+                       if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
 
-       /\s\**(\S+);$/;
-       return($1);
+                       # Nothing recognise as true
+                       return 1;
+               }
        }
 
+       foreach $k (@keywords) {
+               if ($k =~ /^!(.*)$/) {
+                       $falsesum += &recognise($1,$platforms);
+               } else {
+                       $truesum *= &recognise($k,$platforms);
+               }
+       }
+       print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
+       return (!$falsesum) && $truesum;
+}
+
+sub print_test_file
+{
+       (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
+       my $n = 1; my @e; my @r;
+       my $sym; my $prev = ""; my $prefSSLeay;
+
+       (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
+       (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
+       @symbols=((sort @e),(sort @r));
+
+       foreach $sym (@symbols) {
+               (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
+               my $v = 0;
+               $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
+               my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
+               my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
+               if (!defined($nums{$s})) {
+                       print STDERR "Warning: $s does not have a number assigned\n"
+                           if(!$do_update);
+               } elsif (is_valid($p,1) && is_valid($a,0)) {
+                       my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
+                       if ($prev eq $s2) {
+                               print OUT "\t/* The following has already appeared previously */\n";
+                               print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
+                       }
+                       $prev = $s2;    # To warn about duplicates...
+
+                       ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
+                       if ($v) {
+                               print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
+                       } else {
+                               print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
+                       }
+               }
+       }
+}
+
+sub get_version {
+   local *MF;
+   my $v = '?';
+   open MF, 'Makefile' or return $v;
+   while (<MF>) {
+     $v = $1, last if /^VERSION=(.*?)\s*$/;
+   }
+   close MF;
+   return $v;
+}
+
 sub print_def_file
-       {
-       local(*OUT,$name,*nums,@functions)=@_;
-       local($n)=1;
+{
+       (*OUT,my $name,*nums,my @symbols)=@_;
+       my $n = 1; my @e; my @r; my @v; my $prev="";
+       my $liboptions="";
+       my $libname = $name;
+       my $http_vendor = 'www.openssl.org/';
+       my $version = get_version();
+       my $what = "OpenSSL: implementation of Secure Socket Layer";
+       my $description = "$what $version, $name - http://$http_vendor";
 
        if ($W32)
-               { $name.="32"; }
-       else
-               { $name.="16"; }
+               { $libname.="32"; }
+       elsif ($W16)
+               { $libname.="16"; }
+       elsif ($OS2)
+               { # DLL names should not clash on the whole system.
+                 # However, they should not have any particular relationship
+                 # to the name of the static library.  Chose descriptive names
+                 # (must be at most 8 chars).
+                 my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
+                 $libname = $translate{$name} || $name;
+                 $liboptions = <<EOO;
+INITINSTANCE
+DATA MULTIPLE NONSHARED
+EOO
+                 # Vendor field can't contain colon, drat; so we omit http://
+                 $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
+               }
 
        print OUT <<"EOF";
 ;
 ; Definition file for the DLL version of the $name library from OpenSSL
 ;
 
-LIBRARY         $name
+LIBRARY         $libname       $liboptions
 
-DESCRIPTION     'OpenSSL $name - http://www.openssl.org/'
+DESCRIPTION     '$description'
 
 EOF
 
-       if (!$W32)
-               {
+       if ($W16) {
                print <<"EOF";
 CODE            PRELOAD MOVEABLE
 DATA            PRELOAD MOVEABLE SINGLE
@@ -292,68 +1231,219 @@ HEAPSIZE        4096
 STACKSIZE      8192
 
 EOF
-               }
+       }
 
        print "EXPORTS\n";
 
+       (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
+       (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
+       (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
+       @symbols=((sort @e),(sort @r), (sort @v));
 
-       (@e)=grep(/^SSLeay/,@functions);
-       (@r)=grep(!/^SSLeay/,@functions);
-       @functions=((sort @e),(sort @r));
 
-       foreach $func (@functions)
-               {
-               if (!defined($nums{$func}))
-                       {
-                       printf STDERR "$func does not have a number assigned\n"
-                                       if(!$do_update);
-                       }
-               else
-                       {
-                       $n=$nums{$func};
-                       printf OUT "    %s%-40s@%d\n",($W32)?"":"_",$func,$n;
+       foreach $sym (@symbols) {
+               (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
+               my $v = 0;
+               $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
+               if (!defined($nums{$s})) {
+                       printf STDERR "Warning: $s does not have a number assigned\n"
+                           if(!$do_update);
+               } else {
+                       (my $n, my $dummy) = split /\\/, $nums{$s};
+                       my %pf = ();
+                       my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
+                       my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
+                       if (is_valid($p,1) && is_valid($a,0)) {
+                               my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
+                               if ($prev eq $s2) {
+                                       print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
+                               }
+                               $prev = $s2;    # To warn about duplicates...
+                               if($v && !$OS2) {
+                                       printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
+                               } else {
+                                       printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
+                               }
                        }
                }
-       printf OUT "\n";
        }
+       printf OUT "\n";
+}
 
 sub load_numbers
-       {
-       local($name)=@_;
-       local($j,@a,%ret);
+{
+       my($name)=@_;
+       my(@a,%ret);
 
        $max_num = 0;
+       $num_noinfo = 0;
+       $prev = "";
+       $prev_cnt = 0;
 
        open(IN,"<$name") || die "unable to open $name:$!\n";
-       while (<IN>)
-               {
+       while (<IN>) {
                chop;
                s/#.*$//;
                next if /^\s*$/;
                @a=split;
-               $ret{$a[0]}=$a[1];
+               if (defined $ret{$a[0]}) {
+                       # This is actually perfectly OK
+                       #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
+               }
+               if ($max_num > $a[1]) {
+                       print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
+               }
+               elsif ($max_num == $a[1]) {
+                       # This is actually perfectly OK
+                       #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
+                       if ($a[0] eq $prev) {
+                               $prev_cnt++;
+                               $a[0] .= "{$prev_cnt}";
+                       }
+               }
+               else {
+                       $prev_cnt = 0;
+               }
+               if ($#a < 2) {
+                       # Existence will be proven later, in do_defs
+                       $ret{$a[0]}=$a[1];
+                       $num_noinfo++;
+               } else {
+                       $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
+               }
                $max_num = $a[1] if $a[1] > $max_num;
+               $prev=$a[0];
+       }
+       if ($num_noinfo) {
+               print STDERR "Warning: $num_noinfo symbols were without info.";
+               if ($do_rewrite) {
+                       printf STDERR "  The rewrite will fix this.\n";
+               } else {
+                       printf STDERR "  You should do a rewrite to fix this.\n";
                }
+       }
        close(IN);
        return(%ret);
+}
+
+sub parse_number
+{
+       (my $str, my $what) = @_;
+       (my $n, my $i) = split(/\\/,$str);
+       if ($what eq "n") {
+               return $n;
+       } else {
+               return $i;
        }
+}
+
+sub rewrite_numbers
+{
+       (*OUT,$name,*nums,@symbols)=@_;
+       my $thing;
+
+       print STDERR "Rewriting $name\n";
+
+       my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
+       my $r; my %r; my %rsyms;
+       foreach $r (@r) {
+               (my $s, my $i) = split /\\/, $r;
+               my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
+               $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
+               $r{$a} = $s."\\".$i;
+               $rsyms{$s} = 1;
+       }
+
+       my %syms = ();
+       foreach $_ (@symbols) {
+               (my $n, my $i) = split /\\/;
+               $syms{$n} = 1;
+       }
+
+       my @s=sort {
+           &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
+           || $a cmp $b
+       } keys %nums;
+       foreach $sym (@s) {
+               (my $n, my $i) = split /\\/, $nums{$sym};
+               next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
+               next if defined($rsyms{$sym});
+               print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
+               $i="NOEXIST::FUNCTION:"
+                       if !defined($i) || $i eq "" || !defined($syms{$sym});
+               my $s2 = $sym;
+               $s2 =~ s/\{[0-9]+\}$//;
+               printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
+               if (exists $r{$sym}) {
+                       (my $s, $i) = split /\\/,$r{$sym};
+                       my $s2 = $s;
+                       $s2 =~ s/\{[0-9]+\}$//;
+                       printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
+               }
+       }
+}
 
 sub update_numbers
-       {
-       local(*OUT,$name,*nums,$start_num, @functions)=@_;
-       my $new_funcs = 0;
-       print STDERR "Updating $name\n";
-       foreach $func (@functions)
-               {
-               if (!defined($nums{$func}))
-                       {
-                       $new_funcs++;
-                       printf OUT "%s%-40s%d\n","",$func, ++$start_num;
+{
+       (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
+       my $new_syms = 0;
+
+       print STDERR "Updating $name numbers\n";
+
+       my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
+       my $r; my %r; my %rsyms;
+       foreach $r (@r) {
+               (my $s, my $i) = split /\\/, $r;
+               my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
+               $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
+               $r{$a} = $s."\\".$i;
+               $rsyms{$s} = 1;
+       }
+
+       foreach $sym (@symbols) {
+               (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
+               next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
+               next if defined($rsyms{$sym});
+               die "ERROR: Symbol $sym had no info attached to it."
+                   if $i eq "";
+               if (!exists $nums{$s}) {
+                       $new_syms++;
+                       my $s2 = $s;
+                       $s2 =~ s/\{[0-9]+\}$//;
+                       printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
+                       if (exists $r{$s}) {
+                               ($s, $i) = split /\\/,$r{$s};
+                               $s =~ s/\{[0-9]+\}$//;
+                               printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
                        }
                }
-       if($new_funcs) {
-               print STDERR "$new_funcs New Functions added\n";
+       }
+       if($new_syms) {
+               print STDERR "$new_syms New symbols added\n";
        } else {
-               print STDERR "No New Functions Added\n";
+               print STDERR "No New symbols Added\n";
        }
+}
+
+sub check_existing
+{
+       (*nums, my @symbols)=@_;
+       my %existing; my @remaining;
+       @remaining=();
+       foreach $sym (@symbols) {
+               (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
+               $existing{$s}=1;
        }
+       foreach $sym (keys %nums) {
+               if (!exists $existing{$sym}) {
+                       push @remaining, $sym;
+               }
+       }
+       if(@remaining) {
+               print STDERR "The following symbols do not seem to exist:\n";
+               foreach $sym (@remaining) {
+                       print STDERR "\t",$sym,"\n";
+               }
+       }
+}
+