util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libeay.num and ssleay.num,...
   9 # Previously, they had the following format:
  10 #
  11 #       routine-name    nnnn
  12 #
  13 # But that isn't enough for a number of reasons, the first on being that
  14 # this format is (needlessly) very Win32-centric, and even then...
  15 # One of the biggest problems is that there's no information about what
  16 # routines should actually be used, which varies with what crypto algorithms
  17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
  18 # need to keep track of the global variables as well as the functions.
  19 #
  20 # So, a remake of this script is done so as to include information on the
  21 # kind of symbol it is (function or variable) and what algorithms they're
  22 # part of.  This will allow easy translating to .def files or the corresponding
  23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
  24 # file).
  25 #
  26 # The format now becomes:
  27 #
  28 #       routine-name    nnnn    info
  29 #
  30 # and the "info" part is actually a colon-separated string of fields with
  31 # the following meaning:
  32 #
  33 #       existence:platform:kind:algorithms
  34 #
  35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  36 #   found somewhere in the source,
  37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  38 #   comma-separated list of the platform, just as they are if the symbol exists
  39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  40 #   symbol name variants for platforms where the names are too long for the
  41 #   compiler or linker, or if the systems is case insensitive and there is a
  42 #   clash, or the symbol is implemented differently (see
  43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  44 #   in the file crypto/symhacks.h.
  45 #   The semantics for the platforms is that every item is checked against the
  46 #   enviroment.  For the negative items ("!FOO"), if any of them is false
  47 #   (i.e. "FOO" is true) in the enviroment, the corresponding symbol can't be
  48 #   used.  For the positive itms, if all of them are false in the environment,
  49 #   the corresponding symbol can't be used.  Any combination of positive and
  50 #   negative items are possible, and of course leave room for some redundancy.
  51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  53 #   exclude symbols that are part of an algorithm that some user wants to
  54 #   exclude.
  55 #
  56
  57 my $debug=0;
  58
  59 my $crypto_num= "util/libeay.num";
  60 my $ssl_num=    "util/ssleay.num";
  61
  62 my $do_update = 0;
  63 my $do_rewrite = 1;
  64 my $do_crypto = 0;
  65 my $do_ssl = 0;
  66 my $do_ctest = 0;
  67 my $do_ctestall = 0;
  68 my $do_checkexist = 0;
  69
  70 my $VMSVAX=0;
  71 my $VMSAlpha=0;
  72 my $VMS=0;
  73 my $W32=0;
  74 my $W16=0;
  75 my $NT=0;
  76 # Set this to make typesafe STACK definitions appear in DEF
  77 my $safe_stack_def = 0;
  78
  79 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
  80                         "EXPORT_VAR_AS_FUNCTION" );
  81 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT" );
  82 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  83                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  84                          "RIPEMD",
  85                          "MDC2", "RSA", "DSA", "DH", "EC", "HMAC", "AES",
  86                          # Envelope "algorithms"
  87                          "EVP", "X509", "ASN1_TYPEDEFS",
  88                          # Helper "algorithms"
  89                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  90                          "LOCKING",
  91                          # External "algorithms"
  92                          "FP_API", "STDIO", "SOCK", "KRB5" );
  93
  94 my $options="";
  95 open(IN,"<Makefile.ssl") || die "unable to open Makefile.ssl!\n";
  96 while(<IN>) {
  97     $options=$1 if (/^OPTIONS=(.*)$/);
  98 }
  99 close(IN);
 100
 101 # The following ciphers may be excluded (by Configure). This means functions
 102 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 103 # in directory xxx is ignored.
 104 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 105 my $no_cast;
 106 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 107 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 108 my $no_ec;
 109 my $no_fp_api;
 110
 111 foreach (@ARGV, split(/ /, $options))
 112         {
 113         $debug=1 if $_ eq "debug";
 114         $W32=1 if $_ eq "32";
 115         $W16=1 if $_ eq "16";
 116         if($_ eq "NT") {
 117                 $W32 = 1;
 118                 $NT = 1;
 119         }
 120         if ($_ eq "VMS-VAX") {
 121                 $VMS=1;
 122                 $VMSVAX=1;
 123         }
 124         if ($_ eq "VMS-Alpha") {
 125                 $VMS=1;
 126                 $VMSAlpha=1;
 127         }
 128         $VMS=1 if $_ eq "VMS";
 129
 130         $do_ssl=1 if $_ eq "ssleay";
 131         $do_ssl=1 if $_ eq "ssl";
 132         $do_crypto=1 if $_ eq "libeay";
 133         $do_crypto=1 if $_ eq "crypto";
 134         $do_update=1 if $_ eq "update";
 135         $do_rewrite=1 if $_ eq "rewrite";
 136         $do_ctest=1 if $_ eq "ctest";
 137         $do_ctestall=1 if $_ eq "ctestall";
 138         $do_checkexist=1 if $_ eq "exist";
 139         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 140
 141         if    (/^no-rc2$/)      { $no_rc2=1; }
 142         elsif (/^no-rc4$/)      { $no_rc4=1; }
 143         elsif (/^no-rc5$/)      { $no_rc5=1; }
 144         elsif (/^no-idea$/)     { $no_idea=1; }
 145         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 146         elsif (/^no-bf$/)       { $no_bf=1; }
 147         elsif (/^no-cast$/)     { $no_cast=1; }
 148         elsif (/^no-md2$/)      { $no_md2=1; }
 149         elsif (/^no-md4$/)      { $no_md4=1; }
 150         elsif (/^no-md5$/)      { $no_md5=1; }
 151         elsif (/^no-sha$/)      { $no_sha=1; }
 152         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 153         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 154         elsif (/^no-rsa$/)      { $no_rsa=1; }
 155         elsif (/^no-dsa$/)      { $no_dsa=1; }
 156         elsif (/^no-dh$/)       { $no_dh=1; }
 157         elsif (/^no-ec$/)       { $no_ec=1; }
 158         elsif (/^no-hmac$/)     { $no_hmac=1; }
 159         elsif (/^no-aes$/)      { $no_aes=1; }
 160         elsif (/^no-evp$/)      { $no_evp=1; }
 161         elsif (/^no-lhash$/)    { $no_lhash=1; }
 162         elsif (/^no-stack$/)    { $no_stack=1; }
 163         elsif (/^no-err$/)      { $no_err=1; }
 164         elsif (/^no-buffer$/)   { $no_buffer=1; }
 165         elsif (/^no-bio$/)      { $no_bio=1; }
 166         #elsif (/^no-locking$/) { $no_locking=1; }
 167         elsif (/^no-comp$/)     { $no_comp=1; }
 168         elsif (/^no-dso$/)      { $no_dso=1; }
 169         elsif (/^no-krb5$/)     { $no_krb5=1; }
 170         }
 171
 172
 173 # If no platform is given, assume WIN32
 174 if ($W32 + $W16 + $VMS == 0) {
 175         $W32 = 1;
 176 }
 177
 178 # Add extra knowledge
 179 if ($W16) {
 180         $no_fp_api=1;
 181 }
 182
 183 if (!$do_ssl && !$do_crypto)
 184         {
 185         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT ]\n";
 186         exit(1);
 187         }
 188
 189 %ssl_list=&load_numbers($ssl_num);
 190 $max_ssl = $max_num;
 191 %crypto_list=&load_numbers($crypto_num);
 192 $max_crypto = $max_num;
 193
 194 my $ssl="ssl/ssl.h";
 195 $ssl.=" ssl/kssl.h";
 196
 197 my $crypto ="crypto/crypto.h";
 198 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 199 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 200 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 201 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 202 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 203 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 204 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 205 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 206 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 207 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 208 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 209 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 210 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 211 $crypto.=" crypto/rijndael/rijndael.h" ; # unless $no_aes;
 212 $crypto.=" crypto/rijndael/rd_fst.h" ; # unless $no_aes;
 213
 214 $crypto.=" crypto/bn/bn.h";
 215 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 216 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 217 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 218 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 219 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 220
 221 $crypto.=" crypto/engine/engine.h";
 222 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 223 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 224 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 225 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 226 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 227 $crypto.=" crypto/conf/conf.h";
 228 $crypto.=" crypto/txt_db/txt_db.h";
 229
 230 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 231 $crypto.=" crypto/objects/objects.h";
 232 $crypto.=" crypto/pem/pem.h";
 233 #$crypto.=" crypto/meth/meth.h";
 234 $crypto.=" crypto/asn1/asn1.h";
 235 $crypto.=" crypto/asn1/asn1t.h";
 236 $crypto.=" crypto/asn1/asn1_mac.h";
 237 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 238 $crypto.=" crypto/pkcs7/pkcs7.h";
 239 $crypto.=" crypto/pkcs12/pkcs12.h";
 240 $crypto.=" crypto/x509/x509.h";
 241 $crypto.=" crypto/x509/x509_vfy.h";
 242 $crypto.=" crypto/x509v3/x509v3.h";
 243 $crypto.=" crypto/rand/rand.h";
 244 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 245 $crypto.=" crypto/ocsp/ocsp.h";
 246 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 247 $crypto.=" crypto/krb5/krb5_asn.h";
 248 $crypto.=" crypto/tmdiff.h";
 249
 250 my $symhacks="crypto/symhacks.h";
 251
 252 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 253 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 254
 255 if ($do_update) {
 256
 257 if ($do_ssl == 1) {
 258
 259         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 260         if ($do_rewrite == 1) {
 261                 open(OUT, ">$ssl_num");
 262                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 263         } else {
 264                 open(OUT, ">>$ssl_num");
 265         }
 266         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 267         close OUT;
 268 }
 269
 270 if($do_crypto == 1) {
 271
 272         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 273         if ($do_rewrite == 1) {
 274                 open(OUT, ">$crypto_num");
 275                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 276         } else {
 277                 open(OUT, ">>$crypto_num");
 278         }
 279         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 280         close OUT;
 281 }
 282
 283 } elsif ($do_checkexist) {
 284         &check_existing(*ssl_list, @ssl_symbols)
 285                 if $do_ssl == 1;
 286         &check_existing(*crypto_list, @crypto_symbols)
 287                 if $do_crypto == 1;
 288 } elsif ($do_ctest || $do_ctestall) {
 289
 290         print <<"EOF";
 291
 292 /* Test file to check all DEF file symbols are present by trying
 293  * to link to all of them. This is *not* intended to be run!
 294  */
 295
 296 int main()
 297 {
 298 EOF
 299         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 300                 if $do_ssl == 1;
 301
 302         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 303                 if $do_crypto == 1;
 304
 305         print "}\n";
 306
 307 } else {
 308
 309         &print_def_file(*STDOUT,"SSLEAY",*ssl_list,@ssl_symbols)
 310                 if $do_ssl == 1;
 311
 312         &print_def_file(*STDOUT,"LIBEAY",*crypto_list,@crypto_symbols)
 313                 if $do_crypto == 1;
 314
 315 }
 316
 317
 318 sub do_defs
 319 {
 320         my($name,$files,$symhacksfile)=@_;
 321         my $file;
 322         my @ret;
 323         my %syms;
 324         my %platform;           # For anything undefined, we assume ""
 325         my %kind;               # For anything undefined, we assume "FUNCTION"
 326         my %algorithm;          # For anything undefined, we assume ""
 327         my %variant;
 328         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 329                                 # is the same name as the original.
 330         my $cpp;
 331         my %unknown_algorithms = ();
 332
 333         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 334                 {
 335                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 336                 open(IN,"<$file") || die "unable to open $file:$!\n";
 337                 my $line = "", my $def= "";
 338                 my %tag = (
 339                         (map { $_ => 0 } @known_platforms),
 340                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 341                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 342                         NOPROTO         => 0,
 343                         PERL5           => 0,
 344                         _WINDLL         => 0,
 345                         CONST_STRICT    => 0,
 346                         TRUE            => 1,
 347                 );
 348                 my $symhacking = $file eq $symhacksfile;
 349                 my @current_platforms = ();
 350                 my @current_algorithms = ();
 351
 352                 # params: symbol, alias, platforms, kind
 353                 # The reason to put this subroutine in a variable is that
 354                 # it will otherwise create it's own, unshared, version of
 355                 # %tag and %variant...
 356                 my $make_variant = sub
 357                 {
 358                         my ($s, $a, $p, $k) = @_;
 359                         my ($a1, $a2);
 360
 361                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 362                         if (defined($p))
 363                         {
 364                                 $a1 = join(",",$p,
 365                                            grep(!/^$/,
 366                                                 map { $tag{$_} == 1 ? $_ : "" }
 367                                                 @known_platforms));
 368                         }
 369                         else
 370                         {
 371                                 $a1 = join(",",
 372                                            grep(!/^$/,
 373                                                 map { $tag{$_} == 1 ? $_ : "" }
 374                                                 @known_platforms));
 375                         }
 376                         $a2 = join(",",
 377                                    grep(!/^$/,
 378                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 379                                         @known_ossl_platforms));
 380                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 381                         if ($a1 eq "") { $a1 = $a2; }
 382                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 383                         if ($a eq $s)
 384                         {
 385                                 if (!defined($variant_cnt{$s}))
 386                                 {
 387                                         $variant_cnt{$s} = 0;
 388                                 }
 389                                 $variant_cnt{$s}++;
 390                                 $a .= "{$variant_cnt{$s}}";
 391                         }
 392                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 393                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 394                         if (!grep(/^$togrep$/,
 395                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 396                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 397                                 $variant{$s} .= $toadd;
 398                         }
 399                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 400                 };
 401
 402                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 403                 while(<IN>) {
 404                         last if (/\/\* Error codes for the \w+ functions\. \*\//);
 405                         if ($line ne '') {
 406                                 $_ = $line . $_;
 407                                 $line = '';
 408                         }
 409
 410                         if (/\\$/) {
 411                                 chomp; # remove eol
 412                                 chop; # remove ending backslash
 413                                 $line = $_;
 414                                 next;
 415                         }
 416
 417                         $cpp = 1 if /^\#.*ifdef.*cplusplus/;
 418                         if ($cpp) {
 419                                 $cpp = 0 if /^\#.*endif/;
 420                                 next;
 421                         }
 422
 423                         s/\/\*.*?\*\///gs;                   # ignore comments
 424                         s/{[^{}]*}//gs;                      # ignore {} blocks
 425                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 426                         if (/^\#\s*ifndef\s+(.*)/) {
 427                                 push(@tag,"-");
 428                                 push(@tag,$1);
 429                                 $tag{$1}=-1;
 430                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 431                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 432                                 push(@tag,"-");
 433                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 434                                         my $tmp_1 = $1;
 435                                         my $tmp_;
 436                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 437                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 438                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 439                                                 push(@tag,$1);
 440                                                 $tag{$1}=-1;
 441                                         }
 442                                 } else {
 443                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 444                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 445                                         push(@tag,$1);
 446                                         $tag{$1}=-1;
 447                                 }
 448                         } elsif (/^\#\s*ifdef\s+(.*)/) {
 449                                 push(@tag,"-");
 450                                 push(@tag,$1);
 451                                 $tag{$1}=1;
 452                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 453                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 454                                 push(@tag,"-");
 455                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 456                                         my $tmp_1 = $1;
 457                                         my $tmp_;
 458                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 459                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 460                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 461                                                 push(@tag,$1);
 462                                                 $tag{$1}=1;
 463                                         }
 464                                 } else {
 465                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 466                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 467                                         push(@tag,$1);
 468                                         $tag{$1}=1;
 469                                 }
 470                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 471                                 my $tag_i = $#tag;
 472                                 while($tag[$tag_i] ne "-") {
 473                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 474                                                 $tag{$tag[$tag_i]}=2;
 475                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 476                                         }
 477                                         $tag_i--;
 478                                 }
 479                         } elsif (/^\#\s*endif/) {
 480                                 my $tag_i = $#tag;
 481                                 while($tag[$tag_i] ne "-") {
 482                                         my $t=$tag[$tag_i];
 483                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 484                                         if ($tag{$t}==2) {
 485                                                 $tag{$t}=-1;
 486                                         } else {
 487                                                 $tag{$t}=0;
 488                                         }
 489                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 490                                         pop(@tag);
 491                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 492                                                 $t=$1;
 493                                         } else {
 494                                                 $t="";
 495                                         }
 496                                         if ($t ne ""
 497                                             && !grep(/^$t$/, @known_algorithms)) {
 498                                                 $unknown_algorithms{$t} = 1;
 499                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 500                                         }
 501                                         $tag_i--;
 502                                 }
 503                                 pop(@tag);
 504                         } elsif (/^\#\s*else/) {
 505                                 my $tag_i = $#tag;
 506                                 while($tag[$tag_i] ne "-") {
 507                                         my $t=$tag[$tag_i];
 508                                         $tag{$t}= -$tag{$t};
 509                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 510                                         $tag_i--;
 511                                 }
 512                         } elsif (/^\#\s*if\s+1/) {
 513                                 push(@tag,"-");
 514                                 # Dummy tag
 515                                 push(@tag,"TRUE");
 516                                 $tag{"TRUE"}=1;
 517                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 518                         } elsif (/^\#\s*if\s+0/) {
 519                                 push(@tag,"-");
 520                                 # Dummy tag
 521                                 push(@tag,"TRUE");
 522                                 $tag{"TRUE"}=-1;
 523                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 524                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 525                                  && $symhacking && $tag{'TRUE'} != -1) {
 526                                 # This is for aliasing.  When we find an alias,
 527                                 # we have to invert
 528                                 &$make_variant($1,$2);
 529                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 530                         }
 531                         if (/^\#/) {
 532                                 @current_platforms =
 533                                     grep(!/^$/,
 534                                          map { $tag{$_} == 1 ? $_ :
 535                                                    $tag{$_} == -1 ? "!".$_  : "" }
 536                                          @known_platforms);
 537                                 push @current_platforms
 538                                     , grep(!/^$/,
 539                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 540                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 541                                            @known_ossl_platforms);
 542                                 @current_algorithms =
 543                                     grep(!/^$/,
 544                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 545                                          @known_algorithms);
 546                                 $def .=
 547                                     "#INFO:"
 548                                         .join(',',@current_platforms).":"
 549                                             .join(',',@current_algorithms).";";
 550                                 next;
 551                         }
 552                         if ($tag{'TRUE'} != -1) {
 553                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 554                                         next;
 555                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 556                                         $def .= "int d2i_$3(void);";
 557                                         $def .= "int i2d_$3(void);";
 558                                         # Variant for platforms that do not
 559                                         # have to access globale variables
 560                                         # in shared libraries through functions
 561                                         $def .=
 562                                             "#INFO:"
 563                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 564                                                     .join(',',@current_algorithms).";";
 565                                         $def .= "OPENSSL_EXTERN int $2_it;";
 566                                         $def .=
 567                                             "#INFO:"
 568                                                 .join(',',@current_platforms).":"
 569                                                     .join(',',@current_algorithms).";";
 570                                         # Variant for platforms that have to
 571                                         # access globale variables in shared
 572                                         # libraries through functions
 573                                         &$make_variant("$2_it","$2_it",
 574                                                       "EXPORT_VAR_AS_FUNCTION",
 575                                                       "FUNCTION");
 576                                         next;
 577                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 578                                         $def .= "int d2i_$3(void);";
 579                                         $def .= "int i2d_$3(void);";
 580                                         $def .= "int $3_free(void);";
 581                                         $def .= "int $3_new(void);";
 582                                         # Variant for platforms that do not
 583                                         # have to access globale variables
 584                                         # in shared libraries through functions
 585                                         $def .=
 586                                             "#INFO:"
 587                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 588                                                     .join(',',@current_algorithms).";";
 589                                         $def .= "OPENSSL_EXTERN int $2_it;";
 590                                         $def .=
 591                                             "#INFO:"
 592                                                 .join(',',@current_platforms).":"
 593                                                     .join(',',@current_algorithms).";";
 594                                         # Variant for platforms that have to
 595                                         # access globale variables in shared
 596                                         # libraries through functions
 597                                         &$make_variant("$2_it","$2_it",
 598                                                       "EXPORT_VAR_AS_FUNCTION",
 599                                                       "FUNCTION");
 600                                         next;
 601                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 602                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 603                                         $def .= "int d2i_$1(void);";
 604                                         $def .= "int i2d_$1(void);";
 605                                         $def .= "int $1_free(void);";
 606                                         $def .= "int $1_new(void);";
 607                                         # Variant for platforms that do not
 608                                         # have to access globale variables
 609                                         # in shared libraries through functions
 610                                         $def .=
 611                                             "#INFO:"
 612                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 613                                                     .join(',',@current_algorithms).";";
 614                                         $def .= "OPENSSL_EXTERN int $1_it;";
 615                                         $def .=
 616                                             "#INFO:"
 617                                                 .join(',',@current_platforms).":"
 618                                                     .join(',',@current_algorithms).";";
 619                                         # Variant for platforms that have to
 620                                         # access globale variables in shared
 621                                         # libraries through functions
 622                                         &$make_variant("$1_it","$1_it",
 623                                                       "EXPORT_VAR_AS_FUNCTION",
 624                                                       "FUNCTION");
 625                                         next;
 626                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 627                                         $def .= "int d2i_$2(void);";
 628                                         $def .= "int i2d_$2(void);";
 629                                         # Variant for platforms that do not
 630                                         # have to access globale variables
 631                                         # in shared libraries through functions
 632                                         $def .=
 633                                             "#INFO:"
 634                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 635                                                     .join(',',@current_algorithms).";";
 636                                         $def .= "OPENSSL_EXTERN int $2_it;";
 637                                         $def .=
 638                                             "#INFO:"
 639                                                 .join(',',@current_platforms).":"
 640                                                     .join(',',@current_algorithms).";";
 641                                         # Variant for platforms that have to
 642                                         # access globale variables in shared
 643                                         # libraries through functions
 644                                         &$make_variant("$2_it","$2_it",
 645                                                       "EXPORT_VAR_AS_FUNCTION",
 646                                                       "FUNCTION");
 647                                         next;
 648                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 649                                         $def .= "int d2i_$2(void);";
 650                                         $def .= "int i2d_$2(void);";
 651                                         $def .= "int $2_free(void);";
 652                                         $def .= "int $2_new(void);";
 653                                         # Variant for platforms that do not
 654                                         # have to access globale variables
 655                                         # in shared libraries through functions
 656                                         $def .=
 657                                             "#INFO:"
 658                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 659                                                     .join(',',@current_algorithms).";";
 660                                         $def .= "OPENSSL_EXTERN int $2_it;";
 661                                         $def .=
 662                                             "#INFO:"
 663                                                 .join(',',@current_platforms).":"
 664                                                     .join(',',@current_algorithms).";";
 665                                         # Variant for platforms that have to
 666                                         # access globale variables in shared
 667                                         # libraries through functions
 668                                         &$make_variant("$2_it","$2_it",
 669                                                       "EXPORT_VAR_AS_FUNCTION",
 670                                                       "FUNCTION");
 671                                         next;
 672                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 673                                         # Variant for platforms that do not
 674                                         # have to access globale variables
 675                                         # in shared libraries through functions
 676                                         $def .=
 677                                             "#INFO:"
 678                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 679                                                     .join(',',@current_algorithms).";";
 680                                         $def .= "OPENSSL_EXTERN int $1_it;";
 681                                         $def .=
 682                                             "#INFO:"
 683                                                 .join(',',@current_platforms).":"
 684                                                     .join(',',@current_algorithms).";";
 685                                         # Variant for platforms that have to
 686                                         # access globale variables in shared
 687                                         # libraries through functions
 688                                         &$make_variant("$1_it","$1_it",
 689                                                       "EXPORT_VAR_AS_FUNCTION",
 690                                                       "FUNCTION");
 691                                         next;
 692                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 693                                         next;
 694                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 695                                         next;
 696                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 697                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ) {
 698                                         # Things not in Win16
 699                                         $def .=
 700                                             "#INFO:"
 701                                                 .join(',',"!WIN16",@current_platforms).":"
 702                                                     .join(',',@current_algorithms).";";
 703                                         $def .= "int PEM_read_$1(void);";
 704                                         $def .= "int PEM_write_$1(void);";
 705                                         $def .=
 706                                             "#INFO:"
 707                                                 .join(',',@current_platforms).":"
 708                                                     .join(',',@current_algorithms).";";
 709                                         # Things that are everywhere
 710                                         $def .= "int PEM_read_bio_$1(void);";
 711                                         $def .= "int PEM_write_bio_$1(void);";
 712                                         next;
 713                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 714                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 715                                         # Things not in Win16
 716                                         $def .=
 717                                             "#INFO:"
 718                                                 .join(',',"!WIN16",@current_platforms).":"
 719                                                     .join(',',@current_algorithms).";";
 720                                         $def .= "int PEM_write_$1(void);";
 721                                         $def .=
 722                                             "#INFO:"
 723                                                 .join(',',@current_platforms).":"
 724                                                     .join(',',@current_algorithms).";";
 725                                         # Things that are everywhere
 726                                         $def .= "int PEM_write_bio_$1(void);";
 727                                         next;
 728                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 729                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 730                                         # Things not in Win16
 731                                         $def .=
 732                                             "#INFO:"
 733                                                 .join(',',"!WIN16",@current_platforms).":"
 734                                                     .join(',',@current_algorithms).";";
 735                                         $def .= "int PEM_read_$1(void);";
 736                                         $def .=
 737                                             "#INFO:"
 738                                                 .join(',',@current_platforms).":"
 739                                                     .join(',',@current_algorithms).";";
 740                                         # Things that are everywhere
 741                                         $def .= "int PEM_read_bio_$1(void);";
 742                                         next;
 743                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 744                                         # Variant for platforms that do not
 745                                         # have to access globale variables
 746                                         # in shared libraries through functions
 747                                         $def .=
 748                                             "#INFO:"
 749                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 750                                                     .join(',',@current_algorithms).";";
 751                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 752                                         $def .=
 753                                             "#INFO:"
 754                                                 .join(',',@current_platforms).":"
 755                                                     .join(',',@current_algorithms).";";
 756                                         # Variant for platforms that have to
 757                                         # access globale variables in shared
 758                                         # libraries through functions
 759                                         &$make_variant("_shadow_$2","_shadow_$2",
 760                                                       "EXPORT_VAR_AS_FUNCTION",
 761                                                       "FUNCTION");
 762                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 763                                         if (/\{|\/\*|\([^\)]*$/) {
 764                                                 $line = $_;
 765                                         } else {
 766                                                 $def .= $_;
 767                                         }
 768                                 }
 769                         }
 770                 }
 771                 close(IN);
 772
 773                 my $algs;
 774                 my $plays;
 775
 776                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 777                 foreach (split /;/, $def) {
 778                         my $s; my $k = "FUNCTION"; my $p; my $a;
 779                         s/^[\n\s]*//g;
 780                         s/[\n\s]*$//g;
 781                         next if(/\#undef/);
 782                         next if(/typedef\W/);
 783                         next if(/\#define/);
 784
 785                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 786                         if (/^\#INFO:([^:]*):(.*)$/) {
 787                                 $plats = $1;
 788                                 $algs = $2;
 789                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 790                                 next;
 791                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 792                                 $s = $1;
 793                                 $k = "VARIABLE";
 794                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 795                         } elsif (/\(\*(\w*(\{[0-9]+\})?)\([^\)]+/) {
 796                                 $s = $1;
 797                                 print STDERR "DEBUG: found ANSI C function $s\n" if $debug;
 798                         } elsif (/\w+\W+(\w+)\W*\(\s*\)$/s) {
 799                                 # K&R C
 800                                 print STDERR "DEBUG: found K&R C function $s\n" if $debug;
 801                                 next;
 802                         } elsif (/\w+\W+\w+(\{[0-9]+\})?\W*\(.*\)$/s) {
 803                                 while (not /\(\)$/s) {
 804                                         s/[^\(\)]*\)$/\)/s;
 805                                         s/\([^\(\)]*\)\)$/\)/s;
 806                                 }
 807                                 s/\(void\)//;
 808                                 /(\w+(\{[0-9]+\})?)\W*\(\)/s;
 809                                 $s = $1;
 810                                 print STDERR "DEBUG: found function $s\n" if $debug;
 811                         } elsif (/\(/ and not (/=/)) {
 812                                 print STDERR "File $file: cannot parse: $_;\n";
 813                                 next;
 814                         } else {
 815                                 next;
 816                         }
 817
 818                         $syms{$s} = 1;
 819                         $kind{$s} = $k;
 820
 821                         $p = $plats;
 822                         $a = $algs;
 823                         $a .= ",BF" if($s =~ /EVP_bf/);
 824                         $a .= ",CAST" if($s =~ /EVP_cast/);
 825                         $a .= ",DES" if($s =~ /EVP_des/);
 826                         $a .= ",DSA" if($s =~ /EVP_dss/);
 827                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 828                         $a .= ",MD2" if($s =~ /EVP_md2/);
 829                         $a .= ",MD4" if($s =~ /EVP_md4/);
 830                         $a .= ",MD5" if($s =~ /EVP_md5/);
 831                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 832                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 833                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 834                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 835                         $a .= ",SHA" if($s =~ /EVP_sha/);
 836                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 837                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 838                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 839                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 840
 841                         $platform{$s} =
 842                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 843                         $algorithm{$s} .= ','.$a;
 844
 845                         if (defined($variant{$s})) {
 846                                 foreach $v (split /;/,$variant{$s}) {
 847                                         (my $r, my $p, my $k) = split(/:/,$v);
 848                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 849                                         $syms{$r} = 1;
 850                                         if (!defined($k)) { $k = $kind{$s}; }
 851                                         $kind{$r} = $k."(".$s.")";
 852                                         $algorithm{$r} = $algorithm{$s};
 853                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 854                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 855                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 856                                 }
 857                         }
 858                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 859                 }
 860         }
 861
 862         # Prune the returned symbols
 863
 864         delete $syms{"bn_dump1"};
 865         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 866
 867         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 868         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 869         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 870         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 871
 872         # Info we know about
 873
 874         push @ret, map { $_."\\".&info_string($_,"EXIST",
 875                                               $platform{$_},
 876                                               $kind{$_},
 877                                               $algorithm{$_}) } keys %syms;
 878
 879         if (keys %unknown_algorithms) {
 880                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 881                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 882         }
 883         return(@ret);
 884 }
 885
 886 # Param: string of comma-separated platform-specs.
 887 sub reduce_platforms
 888 {
 889         my ($platforms) = @_;
 890         my $pl = defined($platforms) ? $platforms : "";
 891         my %p = map { $_ => 0 } split /,/, $pl;
 892         my $ret;
 893
 894         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 895             if $debug;
 896         # We do this, because if there's code like the following, it really
 897         # means the function exists in all cases and should therefore be
 898         # everywhere.  By increasing and decreasing, we may attain 0:
 899         #
 900         # ifndef WIN16
 901         #    int foo();
 902         # else
 903         #    int _fat foo();
 904         # endif
 905         foreach $platform (split /,/, $pl) {
 906                 if ($platform =~ /^!(.*)$/) {
 907                         $p{$1}--;
 908                 } else {
 909                         $p{$platform}++;
 910                 }
 911         }
 912         foreach $platform (keys %p) {
 913                 if ($p{$platform} == 0) { delete $p{$platform}; }
 914         }
 915
 916         delete $p{""};
 917
 918         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 919         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 920             if $debug;
 921         return $ret;
 922 }
 923
 924 sub info_string {
 925         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 926
 927         my %a = defined($algorithms) ?
 928             map { $_ => 1 } split /,/, $algorithms : ();
 929         my $k = defined($kind) ? $kind : "FUNCTION";
 930         my $ret;
 931         my $p = &reduce_platforms($platforms);
 932
 933         delete $a{""};
 934
 935         $ret = $exist;
 936         $ret .= ":".$p;
 937         $ret .= ":".$k;
 938         $ret .= ":".join(',',sort keys %a);
 939         return $ret;
 940 }
 941
 942 sub maybe_add_info {
 943         (my $name, *nums, my @symbols) = @_;
 944         my $sym;
 945         my $new_info = 0;
 946         my %syms=();
 947
 948         print STDERR "Updating $name info\n";
 949         foreach $sym (@symbols) {
 950                 (my $s, my $i) = split /\\/, $sym;
 951                 if (defined($nums{$s})) {
 952                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
 953                         (my $n, my $dummy) = split /\\/, $nums{$s};
 954                         if (!defined($dummy) || $i ne $dummy) {
 955                                 $nums{$s} = $n."\\".$i;
 956                                 $new_info++;
 957                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
 958                         }
 959                 }
 960                 $syms{$s} = 1;
 961         }
 962
 963         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
 964         foreach $sym (@s) {
 965                 (my $n, my $i) = split /\\/, $nums{$sym};
 966                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
 967                         $new_info++;
 968                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
 969                 }
 970         }
 971         if ($new_info) {
 972                 print STDERR "$new_info old symbols got an info update\n";
 973                 if (!$do_rewrite) {
 974                         print STDERR "You should do a rewrite to fix this.\n";
 975                 }
 976         } else {
 977                 print STDERR "No old symbols needed info update\n";
 978         }
 979 }
 980
 981 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
 982 sub is_valid
 983 {
 984         my ($keywords_txt,$platforms) = @_;
 985         my (@keywords) = split /,/,$keywords_txt;
 986         my ($falsesum, $truesum) = (0, !grep(/^[^!]/,@keywords));
 987
 988         # Param: one keyword
 989         sub recognise
 990         {
 991                 my ($keyword,$platforms) = @_;
 992
 993                 if ($platforms) {
 994                         # platforms
 995                         if ($keyword eq "VMS" && $VMS) { return 1; }
 996                         if ($keyword eq "WIN32" && $W32) { return 1; }
 997                         if ($keyword eq "WIN16" && $W16) { return 1; }
 998                         if ($keyword eq "WINNT" && $NT) { return 1; }
 999                         # Special platforms:
1000                         # EXPORT_VAR_AS_FUNCTION means that global variables
1001                         # will be represented as functions.  This currently
1002                         # only happens on VMS-VAX.
1003                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1004                                 return 1;
1005                         }
1006                         return 0;
1007                 } else {
1008                         # algorithms
1009                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1010                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1011                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1012                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1013                         if ($keyword eq "DES" && $no_des) { return 0; }
1014                         if ($keyword eq "BF" && $no_bf) { return 0; }
1015                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1016                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1017                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1018                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1019                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1020                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1021                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1022                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1023                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1024                         if ($keyword eq "DH" && $no_dh) { return 0; }
1025                         if ($keyword eq "EC" && $no_ec) { return 0; }
1026                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1027                         if ($keyword eq "AES" && $no_aes) { return 0; }
1028                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1029                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1030                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1031                         if ($keyword eq "ERR" && $no_err) { return 0; }
1032                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1033                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1034                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1035                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1036                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1037                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1038
1039                         # Nothing recognise as true
1040                         return 1;
1041                 }
1042         }
1043
1044         foreach $k (@keywords) {
1045                 if ($k =~ /^!(.*)$/) {
1046                         $falsesum += &recognise($1,$platforms);
1047                 } else {
1048                         $truesum += &recognise($k,$platforms);
1049                 }
1050         }
1051         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1052         return (!$falsesum) && $truesum;
1053 }
1054
1055 sub print_test_file
1056 {
1057         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1058         my $n = 1; my @e; my @r;
1059         my $sym; my $prev = ""; my $prefSSLeay;
1060
1061         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1062         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1063         @symbols=((sort @e),(sort @r));
1064
1065         foreach $sym (@symbols) {
1066                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1067                 my $v = 0;
1068                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1069                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1070                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1071                 if (!defined($nums{$s})) {
1072                         print STDERR "Warning: $s does not have a number assigned\n"
1073                             if(!$do_update);
1074                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1075                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1076                         if ($prev eq $s2) {
1077                                 print OUT "\t/* The following has already appeared previously */\n";
1078                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1079                         }
1080                         $prev = $s2;    # To warn about duplicates...
1081
1082                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1083                         if ($v) {
1084                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1085                         } else {
1086                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1087                         }
1088                 }
1089         }
1090 }
1091
1092 sub print_def_file
1093 {
1094         (*OUT,my $name,*nums,my @symbols)=@_;
1095         my $n = 1; my @e; my @r; my @v; my $prev="";
1096
1097         if ($W32)
1098                 { $name.="32"; }
1099         else
1100                 { $name.="16"; }
1101
1102         print OUT <<"EOF";
1103 ;
1104 ; Definition file for the DLL version of the $name library from OpenSSL
1105 ;
1106
1107 LIBRARY         $name
1108
1109 DESCRIPTION     'OpenSSL $name - http://www.openssl.org/'
1110
1111 EOF
1112
1113         if (!$W32) {
1114                 print <<"EOF";
1115 CODE            PRELOAD MOVEABLE
1116 DATA            PRELOAD MOVEABLE SINGLE
1117
1118 EXETYPE         WINDOWS
1119
1120 HEAPSIZE        4096
1121 STACKSIZE       8192
1122
1123 EOF
1124         }
1125
1126         print "EXPORTS\n";
1127
1128         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1129         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1130         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1131         @symbols=((sort @e),(sort @r), (sort @v));
1132
1133
1134         foreach $sym (@symbols) {
1135                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1136                 my $v = 0;
1137                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1138                 if (!defined($nums{$s})) {
1139                         printf STDERR "Warning: $s does not have a number assigned\n"
1140                             if(!$do_update);
1141                 } else {
1142                         (my $n, my $dummy) = split /\\/, $nums{$s};
1143                         my %pf = ();
1144                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1145                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1146                         if (is_valid($p,1) && is_valid($a,0)) {
1147                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1148                                 if ($prev eq $s2) {
1149                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1150                                 }
1151                                 $prev = $s2;    # To warn about duplicates...
1152                                 if($v) {
1153                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1154                                 } else {
1155                                         printf OUT "    %s%-39s @%d\n",($W32)?"":"_",$s2,$n;
1156                                 }
1157                         }
1158                 }
1159         }
1160         printf OUT "\n";
1161 }
1162
1163 sub load_numbers
1164 {
1165         my($name)=@_;
1166         my(@a,%ret);
1167
1168         $max_num = 0;
1169         $num_noinfo = 0;
1170         $prev = "";
1171         $prev_cnt = 0;
1172
1173         open(IN,"<$name") || die "unable to open $name:$!\n";
1174         while (<IN>) {
1175                 chop;
1176                 s/#.*$//;
1177                 next if /^\s*$/;
1178                 @a=split;
1179                 if (defined $ret{$a[0]}) {
1180                         # This is actually perfectly OK
1181                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1182                 }
1183                 if ($max_num > $a[1]) {
1184                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1185                 }
1186                 elsif ($max_num == $a[1]) {
1187                         # This is actually perfectly OK
1188                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1189                         if ($a[0] eq $prev) {
1190                                 $prev_cnt++;
1191                                 $a[0] .= "{$prev_cnt}";
1192                         }
1193                 }
1194                 else {
1195                         $prev_cnt = 0;
1196                 }
1197                 if ($#a < 2) {
1198                         # Existence will be proven later, in do_defs
1199                         $ret{$a[0]}=$a[1];
1200                         $num_noinfo++;
1201                 } else {
1202                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1203                 }
1204                 $max_num = $a[1] if $a[1] > $max_num;
1205                 $prev=$a[0];
1206         }
1207         if ($num_noinfo) {
1208                 print STDERR "Warning: $num_noinfo symbols were without info.";
1209                 if ($do_rewrite) {
1210                         printf STDERR "  The rewrite will fix this.\n";
1211                 } else {
1212                         printf STDERR "  You should do a rewrite to fix this.\n";
1213                 }
1214         }
1215         close(IN);
1216         return(%ret);
1217 }
1218
1219 sub parse_number
1220 {
1221         (my $str, my $what) = @_;
1222         (my $n, my $i) = split(/\\/,$str);
1223         if ($what eq "n") {
1224                 return $n;
1225         } else {
1226                 return $i;
1227         }
1228 }
1229
1230 sub rewrite_numbers
1231 {
1232         (*OUT,$name,*nums,@symbols)=@_;
1233         my $thing;
1234
1235         print STDERR "Rewriting $name\n";
1236
1237         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1238         my $r; my %r; my %rsyms;
1239         foreach $r (@r) {
1240                 (my $s, my $i) = split /\\/, $r;
1241                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1242                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1243                 $r{$a} = $s."\\".$i;
1244                 $rsyms{$s} = 1;
1245         }
1246
1247         my %syms = ();
1248         foreach $_ (@symbols) {
1249                 (my $n, my $i) = split /\\/;
1250                 $syms{$n} = 1;
1251         }
1252
1253         my @s=sort {
1254             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1255             || $a cmp $b
1256         } keys %nums;
1257         foreach $sym (@s) {
1258                 (my $n, my $i) = split /\\/, $nums{$sym};
1259                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1260                 next if defined($rsyms{$sym});
1261                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1262                 $i="NOEXIST::FUNCTION:"
1263                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1264                 my $s2 = $sym;
1265                 $s2 =~ s/\{[0-9]+\}$//;
1266                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1267                 if (exists $r{$sym}) {
1268                         (my $s, $i) = split /\\/,$r{$sym};
1269                         my $s2 = $s;
1270                         $s2 =~ s/\{[0-9]+\}$//;
1271                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1272                 }
1273         }
1274 }
1275
1276 sub update_numbers
1277 {
1278         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1279         my $new_syms = 0;
1280
1281         print STDERR "Updating $name numbers\n";
1282
1283         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1284         my $r; my %r; my %rsyms;
1285         foreach $r (@r) {
1286                 (my $s, my $i) = split /\\/, $r;
1287                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1288                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1289                 $r{$a} = $s."\\".$i;
1290                 $rsyms{$s} = 1;
1291         }
1292
1293         foreach $sym (@symbols) {
1294                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1295                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1296                 next if defined($rsyms{$sym});
1297                 die "ERROR: Symbol $sym had no info attached to it."
1298                     if $i eq "";
1299                 if (!exists $nums{$s}) {
1300                         $new_syms++;
1301                         my $s2 = $s;
1302                         $s2 =~ s/\{[0-9]+\}$//;
1303                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1304                         if (exists $r{$s}) {
1305                                 ($s, $i) = split /\\/,$r{$s};
1306                                 $s =~ s/\{[0-9]+\}$//;
1307                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1308                         }
1309                 }
1310         }
1311         if($new_syms) {
1312                 print STDERR "$new_syms New symbols added\n";
1313         } else {
1314                 print STDERR "No New symbols Added\n";
1315         }
1316 }
1317
1318 sub check_existing
1319 {
1320         (*nums, my @symbols)=@_;
1321         my %existing; my @remaining;
1322         @remaining=();
1323         foreach $sym (@symbols) {
1324                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1325                 $existing{$s}=1;
1326         }
1327         foreach $sym (keys %nums) {
1328                 if (!exists $existing{$sym}) {
1329                         push @remaining, $sym;
1330                 }
1331         }
1332         if(@remaining) {
1333                 print STDERR "The following symbols do not seem to exist:\n";
1334                 foreach $sym (@remaining) {
1335                         print STDERR "\t",$sym,"\n";
1336                 }
1337         }
1338 }
1339