util/mkdef.pl

   1 #! /usr/bin/env perl
   2 # Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the OpenSSL license (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9 #
  10 # generate a .def file
  11 #
  12 # It does this by parsing the header files and looking for the
  13 # prototyped functions: it then prunes the output.
  14 #
  15 # Intermediary files are created, call libcrypto.num and libssl.num,
  16 # The format of these files is:
  17 #
  18 #       routine-name    nnnn    vers    info
  19 #
  20 # The "nnnn" and "vers" fields are the numeric id and version for the symbol
  21 # respectively. The "info" part is actually a colon-separated string of fields
  22 # with the following meaning:
  23 #
  24 #       existence:platform:kind:algorithms
  25 #
  26 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  27 #   found somewhere in the source,
  28 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  29 #   comma-separated list of the platform, just as they are if the symbol exists
  30 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  31 #   symbol name variants for platforms where the names are too long for the
  32 #   compiler or linker, or if the systems is case insensitive and there is a
  33 #   clash, or the symbol is implemented differently (see
  34 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  35 #   in the file crypto/symhacks.h.
  36 #   The semantics for the platforms is that every item is checked against the
  37 #   environment.  For the negative items ("!FOO"), if any of them is false
  38 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  39 #   used.  For the positive items, if all of them are false in the environment,
  40 #   the corresponding symbol can't be used.  Any combination of positive and
  41 #   negative items are possible, and of course leave room for some redundancy.
  42 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  43 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  44 #   exclude symbols that are part of an algorithm that some user wants to
  45 #   exclude.
  46 #
  47
  48 use lib ".";
  49 use configdata;
  50 use File::Spec::Functions;
  51 use File::Basename;
  52 use FindBin;
  53 use lib "$FindBin::Bin/perl";
  54 use OpenSSL::Glob;
  55
  56 # When building a "variant" shared library, with a custom SONAME, also customize
  57 # all the symbol versions.  This produces a shared object that can coexist
  58 # without conflict in the same address space as a default build, or an object
  59 # with a different variant tag.
  60 #
  61 # For example, with a target definition that includes:
  62 #
  63 #         shlib_variant => "-opt",
  64 #
  65 # we build the following objects:
  66 #
  67 # $ perl -le '
  68 #     for (@ARGV) {
  69 #         if ($l = readlink) {
  70 #             printf "%s -> %s\n", $_, $l
  71 #         } else {
  72 #             print
  73 #         }
  74 #     }' *.so*
  75 # libcrypto-opt.so.1.1
  76 # libcrypto.so -> libcrypto-opt.so.1.1
  77 # libssl-opt.so.1.1
  78 # libssl.so -> libssl-opt.so.1.1
  79 #
  80 # whose SONAMEs and dependencies are:
  81 #
  82 # $ for l in *.so; do
  83 #     echo $l
  84 #     readelf -d $l | egrep 'SONAME|NEEDED.*(ssl|crypto)'
  85 #   done
  86 # libcrypto.so
  87 #  0x000000000000000e (SONAME)             Library soname: [libcrypto-opt.so.1.1]
  88 # libssl.so
  89 #  0x0000000000000001 (NEEDED)             Shared library: [libcrypto-opt.so.1.1]
  90 #  0x000000000000000e (SONAME)             Library soname: [libssl-opt.so.1.1]
  91 #
  92 # We case-fold the variant tag to upper case and replace all non-alnum
  93 # characters with "_".  This yields the following symbol versions:
  94 #
  95 # $ nm libcrypto.so | grep -w A
  96 # 0000000000000000 A OPENSSL_OPT_1_1_0
  97 # 0000000000000000 A OPENSSL_OPT_1_1_0a
  98 # 0000000000000000 A OPENSSL_OPT_1_1_0c
  99 # 0000000000000000 A OPENSSL_OPT_1_1_0d
 100 # 0000000000000000 A OPENSSL_OPT_1_1_0f
 101 # 0000000000000000 A OPENSSL_OPT_1_1_0g
 102 # $ nm libssl.so | grep -w A
 103 # 0000000000000000 A OPENSSL_OPT_1_1_0
 104 # 0000000000000000 A OPENSSL_OPT_1_1_0d
 105 #
 106 (my $SO_VARIANT = qq{\U$target{"shlib_variant"}}) =~ s/\W/_/g;
 107
 108 my $debug=0;
 109 my $trace=0;
 110 my $verbose=0;
 111
 112 my $crypto_num= catfile($config{sourcedir},"util","libcrypto.num");
 113 my $ssl_num=    catfile($config{sourcedir},"util","libssl.num");
 114 my $libname;
 115
 116 my $do_update = 0;
 117 my $do_rewrite = 1;
 118 my $do_crypto = 0;
 119 my $do_ssl = 0;
 120 my $do_ctest = 0;
 121 my $do_ctestall = 0;
 122 my $do_checkexist = 0;
 123
 124 my $VMS=0;
 125 my $W32=0;
 126 my $NT=0;
 127 my $UNIX=0;
 128 my $linux=0;
 129 # Set this to make typesafe STACK definitions appear in DEF
 130 my $safe_stack_def = 0;
 131
 132 my @known_platforms = ( "__FreeBSD__", "PERL5",
 133                         "EXPORT_VAR_AS_FUNCTION", "ZLIB", "_WIN32"
 134                         );
 135 my @known_ossl_platforms = ( "UNIX", "VMS", "WIN32", "WINNT", "OS2" );
 136 my @known_algorithms = ( # These are algorithms we know are guarded in relevant
 137                          # header files, but aren't actually disablable.
 138                          # Without these, this script will warn a lot.
 139                          "RSA", "MD5",
 140                          # @disablables comes from configdata.pm
 141                          map { (my $x = uc $_) =~ s|-|_|g; $x; } @disablables,
 142                          # Deprecated functions.  Not really algorithmss, but
 143                          # treated as such here for the sake of simplicity
 144                          "DEPRECATEDIN_0_9_8",
 145                          "DEPRECATEDIN_1_0_0",
 146                          "DEPRECATEDIN_1_1_0",
 147                          "DEPRECATEDIN_1_2_0",
 148                      );
 149
 150 # %disabled comes from configdata.pm
 151 my %disabled_algorithms =
 152     map { (my $x = uc $_) =~ s|-|_|g; $x => 1; } keys %disabled;
 153
 154 my $apiv = sprintf "%x%02x%02x", split(/\./, $config{api});
 155 foreach (@known_algorithms) {
 156         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 157                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 158                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 159         }
 160 }
 161
 162 my $zlib;
 163
 164 foreach (@ARGV, split(/ /, $config{options}))
 165         {
 166         $debug=1 if $_ eq "debug";
 167         $trace=1 if $_ eq "trace";
 168         $verbose=1 if $_ eq "verbose";
 169         $W32=1 if $_ eq "32";
 170         die "win16 not supported" if $_ eq "16";
 171         if($_ eq "NT") {
 172                 $W32 = 1;
 173                 $NT = 1;
 174         }
 175         if ($_ eq "linux") {
 176                 $linux=1;
 177                 $UNIX=1;
 178         }
 179         $VMS=1 if $_ eq "VMS";
 180         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 181                          || $_ eq "enable-zlib-dynamic") {
 182                 $zlib = 1;
 183         }
 184
 185         $do_crypto=1 if $_ eq "libcrypto" || $_ eq "crypto";
 186         $do_ssl=1 if $_ eq "libssl" || $_ eq "ssl";
 187
 188         $do_update=1 if $_ eq "update";
 189         $do_rewrite=1 if $_ eq "rewrite";
 190         $do_ctest=1 if $_ eq "ctest";
 191         $do_ctestall=1 if $_ eq "ctestall";
 192         $do_checkexist=1 if $_ eq "exist";
 193         }
 194 $libname = $unified_info{sharednames}->{libcrypto} if $do_crypto;
 195 $libname = $unified_info{sharednames}->{libssl} if $do_ssl;
 196
 197 if (!$libname) {
 198         if ($do_ssl) {
 199                 $libname="LIBSSL";
 200         }
 201         if ($do_crypto) {
 202                 $libname="LIBCRYPTO";
 203         }
 204 }
 205
 206 # If no platform is given, assume WIN32
 207 if ($W32 + $VMS + $linux == 0) {
 208         $W32 = 1;
 209 }
 210 die "Please, only one platform at a time"
 211     if ($W32 + $VMS + $linux > 1);
 212
 213 if (!$do_ssl && !$do_crypto)
 214         {
 215         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 216         exit(1);
 217         }
 218
 219 %ssl_list=&load_numbers($ssl_num);
 220 $max_ssl = $max_num;
 221 %crypto_list=&load_numbers($crypto_num);
 222 $max_crypto = $max_num;
 223
 224 my $ssl="include/openssl/ssl.h";
 225 $ssl.=" include/openssl/sslerr.h";
 226 $ssl.=" include/openssl/tls1.h";
 227 $ssl.=" include/openssl/srtp.h";
 228
 229 # When scanning include/openssl, skip all SSL files and some internal ones.
 230 my %skipthese;
 231 foreach my $f ( split(/\s+/, $ssl) ) {
 232     $skipthese{$f} = 1;
 233 }
 234 $skipthese{'include/openssl/conf_api.h'} = 1;
 235 $skipthese{'include/openssl/ebcdic.h'} = 1;
 236 $skipthese{'include/openssl/opensslconf.h'} = 1;
 237
 238 # We use headers found in include/openssl and include/internal only.
 239 # The latter is needed so libssl.so/.dll/.exe can link properly.
 240 my $crypto ="include/internal/dso.h";
 241 $crypto.=" include/internal/o_dir.h";
 242 $crypto.=" include/internal/o_str.h";
 243 $crypto.=" include/internal/err.h";
 244 $crypto.=" include/internal/sslconf.h";
 245 foreach my $f ( glob(catfile($config{sourcedir},'include/openssl/*.h')) ) {
 246     my $fn = "include/openssl/" . lc(basename($f));
 247     $crypto .= " $fn" if !defined $skipthese{$fn};
 248 }
 249
 250 my $symhacks="include/openssl/symhacks.h";
 251
 252 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 253 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 254
 255 if ($do_update) {
 256
 257 if ($do_ssl == 1) {
 258
 259         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 260         if ($do_rewrite == 1) {
 261                 open(OUT, ">$ssl_num");
 262                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 263         } else {
 264                 open(OUT, ">>$ssl_num");
 265         }
 266         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 267         close OUT;
 268 }
 269
 270 if($do_crypto == 1) {
 271
 272         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 273         if ($do_rewrite == 1) {
 274                 open(OUT, ">$crypto_num");
 275                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 276         } else {
 277                 open(OUT, ">>$crypto_num");
 278         }
 279         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$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 || $do_ctestall) {
 289
 290         print <<"EOF";
 291
 292 /* Test file to check all DEF file symbols are present by trying
 293  * to link to all of them. This is *not* intended to be run!
 294  */
 295
 296 int main()
 297 {
 298 EOF
 299         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 300                 if $do_ssl == 1;
 301
 302         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 303                 if $do_crypto == 1;
 304
 305         print "}\n";
 306
 307 } else {
 308
 309         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 310                 if $do_ssl == 1;
 311
 312         &print_def_file(*STDOUT,$libname,*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         my $parens = 0;
 333
 334         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 335                 {
 336                 my $fn = catfile($config{sourcedir},$file);
 337                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 338                 print STDERR "TRACE: start reading $fn\n" if $trace;
 339                 open(IN,"<$fn") || die "Can't open $fn, $!,";
 340                 my $line = "", my $def= "";
 341                 my %tag = (
 342                         (map { $_ => 0 } @known_platforms),
 343                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 344                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 345                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 346                         (grep /^DEPRECATED_/, @known_algorithms),
 347                         NOPROTO         => 0,
 348                         PERL5           => 0,
 349                         _WINDLL         => 0,
 350                         CONST_STRICT    => 0,
 351                         TRUE            => 1,
 352                 );
 353                 my $symhacking = $file eq $symhacksfile;
 354                 my @current_platforms = ();
 355                 my @current_algorithms = ();
 356
 357                 # params: symbol, alias, platforms, kind
 358                 # The reason to put this subroutine in a variable is that
 359                 # it will otherwise create it's own, unshared, version of
 360                 # %tag and %variant...
 361                 my $make_variant = sub
 362                 {
 363                         my ($s, $a, $p, $k) = @_;
 364                         my ($a1, $a2);
 365
 366                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 367                         if (defined($p))
 368                         {
 369                                 $a1 = join(",",$p,
 370                                            grep(!/^$/,
 371                                                 map { $tag{$_} == 1 ? $_ : "" }
 372                                                 @known_platforms));
 373                         }
 374                         else
 375                         {
 376                                 $a1 = join(",",
 377                                            grep(!/^$/,
 378                                                 map { $tag{$_} == 1 ? $_ : "" }
 379                                                 @known_platforms));
 380                         }
 381                         $a2 = join(",",
 382                                    grep(!/^$/,
 383                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 384                                         @known_ossl_platforms));
 385                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 386                         if ($a1 eq "") { $a1 = $a2; }
 387                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 388                         if ($a eq $s)
 389                         {
 390                                 if (!defined($variant_cnt{$s}))
 391                                 {
 392                                         $variant_cnt{$s} = 0;
 393                                 }
 394                                 $variant_cnt{$s}++;
 395                                 $a .= "{$variant_cnt{$s}}";
 396                         }
 397                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 398                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 399                         if (!grep(/^$togrep$/,
 400                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 401                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 402                                 $variant{$s} .= $toadd;
 403                         }
 404                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 405                 };
 406
 407                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 408                 while(<IN>) {
 409                         s|\R$||; # Better chomp
 410                         if($parens > 0) {
 411                                 #Inside a DEPRECATEDIN
 412                                 $stored_multiline .= $_;
 413                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 414                                 $parens = count_parens($stored_multiline);
 415                                 if ($parens == 0) {
 416                                         $def .= do_deprecated($stored_multiline,
 417                                                         \@current_platforms,
 418                                                         \@current_algorithms);
 419                                 }
 420                                 next;
 421                         }
 422                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 423                                 {
 424                                 undef @tag;
 425                                 last;
 426                                 }
 427                         if ($line ne '') {
 428                                 $_ = $line . $_;
 429                                 $line = '';
 430                         }
 431
 432                         if (/\\$/) {
 433                                 $line = $`; # keep what was before the backslash
 434                                 next;
 435                         }
 436
 437                         if(/\/\*/) {
 438                                 if (not /\*\//) {       # multi-line comment...
 439                                         $line = $_;     # ... just accumulate
 440                                         next;
 441                                 } else {
 442                                         s/\/\*.*?\*\///gs;# wipe it
 443                                 }
 444                         }
 445
 446                         if ($cpp) {
 447                                 $cpp++ if /^#\s*if/;
 448                                 $cpp-- if /^#\s*endif/;
 449                                 next;
 450                         }
 451                         if (/^#.*ifdef.*cplusplus/) {
 452                                 $cpp = 1;
 453                                 next;
 454                         }
 455
 456                         s/{[^{}]*}//gs;                      # ignore {} blocks
 457                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 458                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 459                         if (/^\#\s*if\s+OPENSSL_API_COMPAT\s*(\S)\s*(0x[0-9a-fA-F]{8})L\s*$/) {
 460                                 my $op = $1;
 461                                 my $v = hex($2);
 462                                 if ($op ne '<' && $op ne '>=') {
 463                                     die "$file unacceptable operator $op: $_\n";
 464                                 }
 465                                 my ($one, $major, $minor) =
 466                                     ( ($v >> 28) & 0xf,
 467                                       ($v >> 20) & 0xff,
 468                                       ($v >> 12) & 0xff );
 469                                 my $t = "DEPRECATEDIN_${one}_${major}_${minor}";
 470                                 push(@tag,"-");
 471                                 push(@tag,$t);
 472                                 $tag{$t}=($op eq '<' ? 1 : -1);
 473                                 print STDERR "DEBUG: $file: found tag $t = $tag{$t}\n" if $debug;
 474                         } elsif (/^\#\s*ifndef\s+(.*)/) {
 475                                 push(@tag,"-");
 476                                 push(@tag,$1);
 477                                 $tag{$1}=-1;
 478                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 479                         } elsif (/^\#\s*if\s+!defined\s*\(([^\)]+)\)/) {
 480                                 push(@tag,"-");
 481                                 if (/^\#\s*if\s+(!defined\s*\(([^\)]+)\)(\s+\&\&\s+!defined\s*\(([^\)]+)\))*)$/) {
 482                                         my $tmp_1 = $1;
 483                                         my $tmp_;
 484                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 485                                                 $tmp_ =~ /!defined\s*\(([^\)]+)\)/;
 486                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 487                                                 push(@tag,$1);
 488                                                 $tag{$1}=-1;
 489                                         }
 490                                 } else {
 491                                         print STDERR "Warning: $file: taking only '!defined($1)' of complicated expression: $_" if $verbose; # because it is O...
 492                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 493                                         push(@tag,$1);
 494                                         $tag{$1}=-1;
 495                                 }
 496                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 497                                 push(@tag,"-");
 498                                 push(@tag,$1);
 499                                 $tag{$1}=1;
 500                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 501                         } elsif (/^\#\s*if\s+defined\s*\(([^\)]+)\)/) {
 502                                 push(@tag,"-");
 503                                 if (/^\#\s*if\s+(defined\s*\(([^\)]+)\)(\s+\|\|\s+defined\s*\(([^\)]+)\))*)$/) {
 504                                         my $tmp_1 = $1;
 505                                         my $tmp_;
 506                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 507                                                 $tmp_ =~ /defined\s*\(([^\)]+)\)/;
 508                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 509                                                 push(@tag,$1);
 510                                                 $tag{$1}=1;
 511                                         }
 512                                 } else {
 513                                         print STDERR "Warning: $file: taking only 'defined($1)' of complicated expression: $_\n" if $verbose; # because it is O...
 514                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 515                                         push(@tag,$1);
 516                                         $tag{$1}=1;
 517                                 }
 518                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 519                                 my $tag_i = $#tag;
 520                                 while($tag[$tag_i] ne "-") {
 521                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 522                                                 $tag{$tag[$tag_i]}=2;
 523                                                 print STDERR "DEBUG: $file: changed tag $1 = 2\n" if $debug;
 524                                         }
 525                                         $tag_i--;
 526                                 }
 527                         } elsif (/^\#\s*endif/) {
 528                                 my $tag_i = $#tag;
 529                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 530                                         my $t=$tag[$tag_i];
 531                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 532                                         if ($tag{$t}==2) {
 533                                                 $tag{$t}=-1;
 534                                         } else {
 535                                                 $tag{$t}=0;
 536                                         }
 537                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 538                                         pop(@tag);
 539                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 540                                                 $t=$1;
 541                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 542                                                 $t=$1;
 543                                         } else {
 544                                                 $t="";
 545                                         }
 546                                         if ($t ne ""
 547                                             && !grep(/^$t$/, @known_algorithms)) {
 548                                                 $unknown_algorithms{$t} = 1;
 549                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 550                                         }
 551                                         $tag_i--;
 552                                 }
 553                                 pop(@tag);
 554                         } elsif (/^\#\s*else/) {
 555                                 my $tag_i = $#tag;
 556                                 die "$file unmatched else\n" if $tag_i < 0;
 557                                 while($tag[$tag_i] ne "-") {
 558                                         my $t=$tag[$tag_i];
 559                                         $tag{$t}= -$tag{$t};
 560                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 561                                         $tag_i--;
 562                                 }
 563                         } elsif (/^\#\s*if\s+1/) {
 564                                 push(@tag,"-");
 565                                 # Dummy tag
 566                                 push(@tag,"TRUE");
 567                                 $tag{"TRUE"}=1;
 568                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 569                         } elsif (/^\#\s*if\s+0/) {
 570                                 push(@tag,"-");
 571                                 # Dummy tag
 572                                 push(@tag,"TRUE");
 573                                 $tag{"TRUE"}=-1;
 574                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 575                         } elsif (/^\#\s*if\s+/) {
 576                                 #Some other unrecognized "if" style
 577                                 push(@tag,"-");
 578                                 print STDERR "Warning: $file: ignoring unrecognized expression: $_\n" if $verbose; # because it is O...
 579                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 580                                  && $symhacking && $tag{'TRUE'} != -1) {
 581                                 # This is for aliasing.  When we find an alias,
 582                                 # we have to invert
 583                                 &$make_variant($1,$2);
 584                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 585                         }
 586                         if (/^\#/) {
 587                                 @current_platforms =
 588                                     grep(!/^$/,
 589                                          map { $tag{$_} == 1 ? $_ :
 590                                                    $tag{$_} == -1 ? "!".$_  : "" }
 591                                          @known_platforms);
 592                                 push @current_platforms
 593                                     , grep(!/^$/,
 594                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 595                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 596                                            @known_ossl_platforms);
 597                                 @current_algorithms = ();
 598                                 @current_algorithms =
 599                                     grep(!/^$/,
 600                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 601                                          @known_algorithms);
 602                                 push @current_algorithms
 603                                     , grep(!/^$/,
 604                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 605                                          @known_algorithms);
 606                                 push @current_algorithms,
 607                                     grep { /^DEPRECATEDIN_/ && $tag{$_} == 1 }
 608                                     @known_algorithms;
 609                                 $def .=
 610                                     "#INFO:"
 611                                         .join(',',@current_platforms).":"
 612                                             .join(',',@current_algorithms).";";
 613                                 next;
 614                         }
 615                         if ($tag{'TRUE'} != -1) {
 616                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 617                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 618                                         next;
 619                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 620                                         $def .= "int d2i_$3(void);";
 621                                         $def .= "int i2d_$3(void);";
 622                                         # Variant for platforms that do not
 623                                         # have to access global variables
 624                                         # in shared libraries through functions
 625                                         $def .=
 626                                             "#INFO:"
 627                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 628                                                     .join(',',@current_algorithms).";";
 629                                         $def .= "OPENSSL_EXTERN int $2_it;";
 630                                         $def .=
 631                                             "#INFO:"
 632                                                 .join(',',@current_platforms).":"
 633                                                     .join(',',@current_algorithms).";";
 634                                         # Variant for platforms that have to
 635                                         # access global variables in shared
 636                                         # libraries through functions
 637                                         &$make_variant("$2_it","$2_it",
 638                                                       "EXPORT_VAR_AS_FUNCTION",
 639                                                       "FUNCTION");
 640                                         next;
 641                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 642                                         $def .= "int d2i_$3(void);";
 643                                         $def .= "int i2d_$3(void);";
 644                                         $def .= "int $3_free(void);";
 645                                         $def .= "int $3_new(void);";
 646                                         # Variant for platforms that do not
 647                                         # have to access global variables
 648                                         # in shared libraries through functions
 649                                         $def .=
 650                                             "#INFO:"
 651                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 652                                                     .join(',',@current_algorithms).";";
 653                                         $def .= "OPENSSL_EXTERN int $2_it;";
 654                                         $def .=
 655                                             "#INFO:"
 656                                                 .join(',',@current_platforms).":"
 657                                                     .join(',',@current_algorithms).";";
 658                                         # Variant for platforms that have to
 659                                         # access global variables in shared
 660                                         # libraries through functions
 661                                         &$make_variant("$2_it","$2_it",
 662                                                       "EXPORT_VAR_AS_FUNCTION",
 663                                                       "FUNCTION");
 664                                         next;
 665                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 666                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 667                                         $def .= "int d2i_$1(void);";
 668                                         $def .= "int i2d_$1(void);";
 669                                         $def .= "int $1_free(void);";
 670                                         $def .= "int $1_new(void);";
 671                                         # Variant for platforms that do not
 672                                         # have to access global variables
 673                                         # in shared libraries through functions
 674                                         $def .=
 675                                             "#INFO:"
 676                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 677                                                     .join(',',@current_algorithms).";";
 678                                         $def .= "OPENSSL_EXTERN int $1_it;";
 679                                         $def .=
 680                                             "#INFO:"
 681                                                 .join(',',@current_platforms).":"
 682                                                     .join(',',@current_algorithms).";";
 683                                         # Variant for platforms that have to
 684                                         # access global variables in shared
 685                                         # libraries through functions
 686                                         &$make_variant("$1_it","$1_it",
 687                                                       "EXPORT_VAR_AS_FUNCTION",
 688                                                       "FUNCTION");
 689                                         next;
 690                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 691                                         $def .= "int d2i_$2(void);";
 692                                         $def .= "int i2d_$2(void);";
 693                                         # Variant for platforms that do not
 694                                         # have to access global variables
 695                                         # in shared libraries through functions
 696                                         $def .=
 697                                             "#INFO:"
 698                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 699                                                     .join(',',@current_algorithms).";";
 700                                         $def .= "OPENSSL_EXTERN int $2_it;";
 701                                         $def .=
 702                                             "#INFO:"
 703                                                 .join(',',@current_platforms).":"
 704                                                     .join(',',@current_algorithms).";";
 705                                         # Variant for platforms that have to
 706                                         # access global variables in shared
 707                                         # libraries through functions
 708                                         &$make_variant("$2_it","$2_it",
 709                                                       "EXPORT_VAR_AS_FUNCTION",
 710                                                       "FUNCTION");
 711                                         next;
 712                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 713                                         $def .= "int $1_free(void);";
 714                                         $def .= "int $1_new(void);";
 715                                         next;
 716                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 717                                         $def .= "int d2i_$2(void);";
 718                                         $def .= "int i2d_$2(void);";
 719                                         $def .= "int $2_free(void);";
 720                                         $def .= "int $2_new(void);";
 721                                         # Variant for platforms that do not
 722                                         # have to access global variables
 723                                         # in shared libraries through functions
 724                                         $def .=
 725                                             "#INFO:"
 726                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 727                                                     .join(',',@current_algorithms).";";
 728                                         $def .= "OPENSSL_EXTERN int $2_it;";
 729                                         $def .=
 730                                             "#INFO:"
 731                                                 .join(',',@current_platforms).":"
 732                                                     .join(',',@current_algorithms).";";
 733                                         # Variant for platforms that have to
 734                                         # access global variables in shared
 735                                         # libraries through functions
 736                                         &$make_variant("$2_it","$2_it",
 737                                                       "EXPORT_VAR_AS_FUNCTION",
 738                                                       "FUNCTION");
 739                                         next;
 740                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 741                                         # Variant for platforms that do not
 742                                         # have to access global variables
 743                                         # in shared libraries through functions
 744                                         $def .=
 745                                             "#INFO:"
 746                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 747                                                     .join(',',@current_algorithms).";";
 748                                         $def .= "OPENSSL_EXTERN int $1_it;";
 749                                         $def .=
 750                                             "#INFO:"
 751                                                 .join(',',@current_platforms).":"
 752                                                     .join(',',@current_algorithms).";";
 753                                         # Variant for platforms that have to
 754                                         # access global variables in shared
 755                                         # libraries through functions
 756                                         &$make_variant("$1_it","$1_it",
 757                                                       "EXPORT_VAR_AS_FUNCTION",
 758                                                       "FUNCTION");
 759                                         next;
 760                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 761                                         $def .= "int i2d_$1_NDEF(void);";
 762                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 763                                         next;
 764                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 765                                         $def .= "int $1_print_ctx(void);";
 766                                         next;
 767                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 768                                         $def .= "int $2_print_ctx(void);";
 769                                         next;
 770                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 771                                         next;
 772                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 773                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 774                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 775                                         $def .=
 776                                             "#INFO:"
 777                                                 .join(',',@current_platforms).":"
 778                                                     .join(',',"STDIO",@current_algorithms).";";
 779                                         $def .= "int PEM_read_$1(void);";
 780                                         $def .= "int PEM_write_$1(void);";
 781                                         $def .=
 782                                             "#INFO:"
 783                                                 .join(',',@current_platforms).":"
 784                                                     .join(',',@current_algorithms).";";
 785                                         # Things that are everywhere
 786                                         $def .= "int PEM_read_bio_$1(void);";
 787                                         $def .= "int PEM_write_bio_$1(void);";
 788                                         next;
 789                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 790                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 791                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 792                                         $def .=
 793                                             "#INFO:"
 794                                                 .join(',',@current_platforms).":"
 795                                                     .join(',',"STDIO",@current_algorithms).";";
 796                                         $def .= "int PEM_write_$1(void);";
 797                                         $def .=
 798                                             "#INFO:"
 799                                                 .join(',',@current_platforms).":"
 800                                                     .join(',',@current_algorithms).";";
 801                                         # Things that are everywhere
 802                                         $def .= "int PEM_write_bio_$1(void);";
 803                                         next;
 804                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 805                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 806                                         $def .=
 807                                             "#INFO:"
 808                                                 .join(',',@current_platforms).":"
 809                                                     .join(',',"STDIO",@current_algorithms).";";
 810                                         $def .= "int PEM_read_$1(void);";
 811                                         $def .=
 812                                             "#INFO:"
 813                                                 .join(',',@current_platforms).":"
 814                                                     .join(',',"STDIO",@current_algorithms).";";
 815                                         # Things that are everywhere
 816                                         $def .= "int PEM_read_bio_$1(void);";
 817                                         next;
 818                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 819                                         # Variant for platforms that do not
 820                                         # have to access global variables
 821                                         # in shared libraries through functions
 822                                         $def .=
 823                                             "#INFO:"
 824                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 825                                                     .join(',',@current_algorithms).";";
 826                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 827                                         $def .=
 828                                             "#INFO:"
 829                                                 .join(',',@current_platforms).":"
 830                                                     .join(',',@current_algorithms).";";
 831                                         # Variant for platforms that have to
 832                                         # access global variables in shared
 833                                         # libraries through functions
 834                                         &$make_variant("_shadow_$2","_shadow_$2",
 835                                                       "EXPORT_VAR_AS_FUNCTION",
 836                                                       "FUNCTION");
 837                                 } elsif (/^\s*DEPRECATEDIN/) {
 838                                         $parens = count_parens($_);
 839                                         if ($parens == 0) {
 840                                                 $def .= do_deprecated($_,
 841                                                         \@current_platforms,
 842                                                         \@current_algorithms);
 843                                         } else {
 844                                                 $stored_multiline = $_;
 845                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 846                                                 next;
 847                                         }
 848                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 849                                         if (/\{|\/\*|\([^\)]*$/) {
 850                                                 $line = $_;
 851                                         } else {
 852                                                 $def .= $_;
 853                                         }
 854                                 }
 855                         }
 856                 }
 857                 close(IN);
 858                 die "$file: Unmatched tags\n" if $#tag >= 0;
 859
 860                 my $algs;
 861                 my $plays;
 862
 863                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 864                 foreach (split /;/, $def) {
 865                         my $s; my $k = "FUNCTION"; my $p; my $a;
 866                         s/^[\n\s]*//g;
 867                         s/[\n\s]*$//g;
 868                         next if(/\#undef/);
 869                         next if(/typedef\W/);
 870                         next if(/\#define/);
 871
 872                         print STDERR "TRACE: processing $_\n" if $trace && !/^\#INFO:/;
 873                         # Reduce argument lists to empty ()
 874                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 875                         my $nsubst = 1; # prevent infinite loop, e.g., on  int fn()
 876                         while($nsubst && /\(.*\)/s) {
 877                                 $nsubst = s/\([^\(\)]+\)/\{\}/gs;
 878                                 $nsubst+= s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;  #(*f{}) -> f
 879                         }
 880                         # pretend as we didn't use curly braces: {} -> ()
 881                         s/\{\}/\(\)/gs;
 882
 883                         s/STACK_OF\(\)/void/gs;
 884                         s/LHASH_OF\(\)/void/gs;
 885
 886                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 887                         if (/^\#INFO:([^:]*):(.*)$/) {
 888                                 $plats = $1;
 889                                 $algs = $2;
 890                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 891                                 next;
 892                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 893                                 $s = $1;
 894                                 $k = "VARIABLE";
 895                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 896                         } elsif (/TYPEDEF_\w+_OF/s) {
 897                                 next;
 898                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 899                                 $s = $1;                # a function name!
 900                                 print STDERR "DEBUG: found function $s\n" if $debug;
 901                         } elsif (/\(/ and not (/=/)) {
 902                                 print STDERR "File $file: cannot parse: $_;\n";
 903                                 next;
 904                         } else {
 905                                 next;
 906                         }
 907
 908                         $syms{$s} = 1;
 909                         $kind{$s} = $k;
 910
 911                         $p = $plats;
 912                         $a = $algs;
 913
 914                         $platform{$s} =
 915                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 916                         $algorithm{$s} .= ','.$a;
 917
 918                         if (defined($variant{$s})) {
 919                                 foreach $v (split /;/,$variant{$s}) {
 920                                         (my $r, my $p, my $k) = split(/:/,$v);
 921                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 922                                         $syms{$r} = 1;
 923                                         if (!defined($k)) { $k = $kind{$s}; }
 924                                         $kind{$r} = $k."(".$s.")";
 925                                         $algorithm{$r} = $algorithm{$s};
 926                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 927                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 928                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 929                                 }
 930                         }
 931                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 932                 }
 933         }
 934
 935         # Prune the returned symbols
 936
 937         delete $syms{"bn_dump1"};
 938         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 939
 940         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 941         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 942         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 943         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 944
 945         # Info we know about
 946
 947         push @ret, map { $_."\\".&info_string($_,"EXIST",
 948                                               $platform{$_},
 949                                               $kind{$_},
 950                                               $algorithm{$_}) } keys %syms;
 951
 952         if (keys %unknown_algorithms) {
 953                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 954                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 955         }
 956         return(@ret);
 957 }
 958
 959 # Param: string of comma-separated platform-specs.
 960 sub reduce_platforms
 961 {
 962         my ($platforms) = @_;
 963         my $pl = defined($platforms) ? $platforms : "";
 964         my %p = map { $_ => 0 } split /,/, $pl;
 965         my $ret;
 966
 967         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 968             if $debug;
 969         # We do this, because if there's code like the following, it really
 970         # means the function exists in all cases and should therefore be
 971         # everywhere.  By increasing and decreasing, we may attain 0:
 972         #
 973         # ifndef WIN16
 974         #    int foo();
 975         # else
 976         #    int _fat foo();
 977         # endif
 978         foreach $platform (split /,/, $pl) {
 979                 if ($platform =~ /^!(.*)$/) {
 980                         $p{$1}--;
 981                 } else {
 982                         $p{$platform}++;
 983                 }
 984         }
 985         foreach $platform (keys %p) {
 986                 if ($p{$platform} == 0) { delete $p{$platform}; }
 987         }
 988
 989         delete $p{""};
 990
 991         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 992         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 993             if $debug;
 994         return $ret;
 995 }
 996
 997 sub info_string
 998 {
 999         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1000
1001         my %a = defined($algorithms) ?
1002             map { $_ => 1 } split /,/, $algorithms : ();
1003         my $k = defined($kind) ? $kind : "FUNCTION";
1004         my $ret;
1005         my $p = &reduce_platforms($platforms);
1006
1007         delete $a{""};
1008
1009         $ret = $exist;
1010         $ret .= ":".$p;
1011         $ret .= ":".$k;
1012         $ret .= ":".join(',',sort keys %a);
1013         return $ret;
1014 }
1015
1016 sub maybe_add_info
1017 {
1018         (my $name, *nums, my @symbols) = @_;
1019         my $sym;
1020         my $new_info = 0;
1021         my %syms=();
1022
1023         foreach $sym (@symbols) {
1024                 (my $s, my $i) = split /\\/, $sym;
1025                 if (defined($nums{$s})) {
1026                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1027                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1028                         if (!defined($dummy) || $i ne $dummy) {
1029                                 $nums{$s} = $n."\\".$vers."\\".$i;
1030                                 $new_info++;
1031                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1032                         }
1033                 }
1034                 $syms{$s} = 1;
1035         }
1036
1037         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1038         foreach $sym (@s) {
1039                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1040                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1041                         $new_info++;
1042                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1043                 }
1044         }
1045         if ($new_info) {
1046                 print STDERR "$name: $new_info old symbols have updated info\n";
1047                 if (!$do_rewrite) {
1048                         print STDERR "You should do a rewrite to fix this.\n";
1049                 }
1050         } else {
1051         }
1052 }
1053
1054 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1055 sub is_valid
1056 {
1057         my ($keywords_txt,$platforms) = @_;
1058         my (@keywords) = split /,/,$keywords_txt;
1059         my ($falsesum, $truesum) = (0, 1);
1060
1061         # Param: one keyword
1062         sub recognise
1063         {
1064                 my ($keyword,$platforms) = @_;
1065
1066                 if ($platforms) {
1067                         # platforms
1068                         if ($keyword eq "UNIX" && $UNIX) { return 1; }
1069                         if ($keyword eq "VMS" && $VMS) { return 1; }
1070                         if ($keyword eq "WIN32" && $W32) { return 1; }
1071                         if ($keyword eq "_WIN32" && $W32) { return 1; }
1072                         if ($keyword eq "WINNT" && $NT) { return 1; }
1073                         # Special platforms:
1074                         # EXPORT_VAR_AS_FUNCTION means that global variables
1075                         # will be represented as functions.
1076                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && $W32) {
1077                                 return 1;
1078                         }
1079                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1080                         return 0;
1081                 } else {
1082                         # algorithms
1083                         if ($disabled_algorithms{$keyword}) { return 0;}
1084
1085                         # Nothing recognise as true
1086                         return 1;
1087                 }
1088         }
1089
1090         foreach $k (@keywords) {
1091                 if ($k =~ /^!(.*)$/) {
1092                         $falsesum += &recognise($1,$platforms);
1093                 } else {
1094                         $truesum *= &recognise($k,$platforms);
1095                 }
1096         }
1097         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1098         return (!$falsesum) && $truesum;
1099 }
1100
1101 sub print_test_file
1102 {
1103         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1104         my $n = 1; my @e; my @r;
1105         my $sym; my $prev = ""; my $prefSSLeay;
1106
1107         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1108         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1109         @symbols=((sort @e),(sort @r));
1110
1111         foreach $sym (@symbols) {
1112                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1113                 my $v = 0;
1114                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1115                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1116                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1117                 if (!defined($nums{$s})) {
1118                         print STDERR "Warning: $s does not have a number assigned\n"
1119                             if(!$do_update);
1120                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1121                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1122                         if ($prev eq $s2) {
1123                                 print OUT "\t/* The following has already appeared previously */\n";
1124                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1125                         }
1126                         $prev = $s2;    # To warn about duplicates...
1127
1128                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1129                         if ($v) {
1130                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1131                         } else {
1132                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1133                         }
1134                 }
1135         }
1136 }
1137
1138 sub get_version
1139 {
1140    return $config{version};
1141 }
1142
1143 sub print_def_file
1144 {
1145         (*OUT,my $name,*nums,my @symbols)=@_;
1146         my $n = 1; my @e; my @r; my @v; my $prev="";
1147         my $liboptions="";
1148         my $libname = $name;
1149         my $http_vendor = 'www.openssl.org/';
1150         my $version = get_version();
1151         my $what = "OpenSSL: implementation of Secure Socket Layer";
1152         my $description = "$what $version, $name - http://$http_vendor";
1153         my $prevsymversion = "", $prevprevsymversion = "";
1154         # For VMS
1155         my $prevnum = 0;
1156         my $symvtextcount = 0;
1157
1158         if ($W32)
1159                 {
1160                 print OUT <<"EOF";
1161 ;
1162 ; Definition file for the DLL version of the $name library from OpenSSL
1163 ;
1164
1165 LIBRARY         $libname        $liboptions
1166
1167 EOF
1168
1169                 print "EXPORTS\n";
1170                 }
1171         elsif ($VMS)
1172                 {
1173                 print OUT <<"EOF";
1174 IDENTIFICATION=$version
1175 CASE_SENSITIVE=YES
1176 SYMBOL_VECTOR=(-
1177 EOF
1178                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1179                 }
1180
1181         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1182         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1183         if ($VMS) {
1184             # VMS needs to have the symbols on slot number order
1185             @symbols=(map { $_->[1] }
1186                       sort { $a->[0] <=> $b->[0] }
1187                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1188                             die "Error: $s doesn't have a number assigned\n"
1189                                 if !defined($nums{$s});
1190                             (my $n, my @rest) = split /\\/, $nums{$s};
1191                             [ $n, $_ ] } (@e, @r, @v));
1192         } else {
1193             @symbols=((sort @e),(sort @r), (sort @v));
1194         }
1195
1196         my ($baseversion, $currversion) = get_openssl_version();
1197         my $thisversion;
1198         do {
1199                 if (!defined($thisversion)) {
1200                         $thisversion = $baseversion;
1201                 } else {
1202                         $thisversion = get_next_version($thisversion);
1203                 }
1204                 foreach $sym (@symbols) {
1205                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1206                         my $v = 0;
1207                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1208                         if (!defined($nums{$s})) {
1209                                 die "Error: $s does not have a number assigned\n"
1210                                         if(!$do_update);
1211                         } else {
1212                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1213                                 my %pf = ();
1214                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1215                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1216                                 if (is_valid($p,1) && is_valid($a,0)) {
1217                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1218                                         if ($prev eq $s2) {
1219                                                 print STDERR "Warning: Symbol '",$s2,
1220                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1221                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1222                                         }
1223                                         $prev = $s2;    # To warn about duplicates...
1224                                         if($linux) {
1225                                                 next if $symversion ne $thisversion;
1226                                                 if ($symversion ne $prevsymversion) {
1227                                                         if ($prevsymversion ne "") {
1228                                                                 if ($prevprevsymversion ne "") {
1229                                                                         print OUT "} OPENSSL${SO_VARIANT}_"
1230                                                                                                 ."$prevprevsymversion;\n\n";
1231                                                                 } else {
1232                                                                         print OUT "};\n\n";
1233                                                                 }
1234                                                         }
1235                                                         print OUT "OPENSSL${SO_VARIANT}_$symversion {\n    global:\n";
1236                                                         $prevprevsymversion = $prevsymversion;
1237                                                         $prevsymversion = $symversion;
1238                                                 }
1239                                                 print OUT "        $s2;\n";
1240                                         } elsif ($VMS) {
1241                                             while(++$prevnum < $n) {
1242                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1243                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1244                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1245                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1246                                                 }
1247                                                 if ($symvtextcount == 16) {
1248                                                     # Take away first comma
1249                                                     $symline =~ s/,//;
1250                                                 }
1251                                                 print OUT $symline;
1252                                                 $symvtextcount += length($symline) - 2;
1253                                             }
1254                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1255                                             my $symtype=
1256                                                 $v ? "DATA" : "PROCEDURE";
1257                                             my $symline=
1258                                                 ($s_uc ne $s
1259                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1260                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1261                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1262                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1263                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1264                                             }
1265                                             if ($symvtextcount == 16) {
1266                                                 # Take away first comma
1267                                                 $symline =~ s/,//;
1268                                             }
1269                                             print OUT $symline;
1270                                             $symvtextcount += length($symline) - 2;
1271                                         } elsif($v) {
1272                                                 printf OUT "    %s%-39s DATA\n",
1273                                                                 ($W32)?"":"_",$s2;
1274                                         } else {
1275                                                 printf OUT "    %s%s\n",
1276                                                                 ($W32)?"":"_",$s2;
1277                                         }
1278                                 }
1279                         }
1280                 }
1281         } while ($linux && $thisversion ne $currversion);
1282         if ($linux) {
1283                 if ($prevprevsymversion ne "") {
1284                         print OUT "    local: *;\n} OPENSSL${SO_VARIANT}_$prevprevsymversion;\n\n";
1285                 } else {
1286                         print OUT "    local: *;\n};\n\n";
1287                 }
1288         } elsif ($VMS) {
1289             print OUT ")\n";
1290             (my $libvmaj, my $libvmin, my $libvedit) =
1291                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1292             # The reason to multiply the edit number with 100 is to make space
1293             # for the possibility that we want to encode the patch letters
1294             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1295         }
1296         printf OUT "\n";
1297 }
1298
1299 sub load_numbers
1300 {
1301         my($name)=@_;
1302         my(@a,%ret);
1303         my $prevversion;
1304
1305         $max_num = 0;
1306         $num_noinfo = 0;
1307         $prev = "";
1308         $prev_cnt = 0;
1309
1310         my ($baseversion, $currversion) = get_openssl_version();
1311
1312         open(IN,"<$name") || die "unable to open $name:$!\n";
1313         while (<IN>) {
1314                 s|\R$||;        # Better chomp
1315                 s/#.*$//;
1316                 next if /^\s*$/;
1317                 @a=split;
1318                 if (defined $ret{$a[0]}) {
1319                         # This is actually perfectly OK
1320                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1321                 }
1322                 if ($max_num > $a[1]) {
1323                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1324                 }
1325                 elsif ($max_num == $a[1]) {
1326                         # This is actually perfectly OK
1327                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1328                         if ($a[0] eq $prev) {
1329                                 $prev_cnt++;
1330                                 $a[0] .= "{$prev_cnt}";
1331                         }
1332                 }
1333                 else {
1334                         $prev_cnt = 0;
1335                 }
1336                 if ($#a < 2) {
1337                         # Existence will be proven later, in do_defs
1338                         $ret{$a[0]}=$a[1];
1339                         $num_noinfo++;
1340                 } else {
1341                         #Sanity check the version number
1342                         if (defined $prevversion) {
1343                                 check_version_lte($prevversion, $a[2]);
1344                         }
1345                         check_version_lte($a[2], $currversion);
1346                         $prevversion = $a[2];
1347                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1348                 }
1349                 $max_num = $a[1] if $a[1] > $max_num;
1350                 $prev=$a[0];
1351         }
1352         if ($num_noinfo) {
1353                 print STDERR "Warning: $num_noinfo symbols were without info." if $verbose || !$do_rewrite;
1354                 if ($do_rewrite) {
1355                         printf STDERR "  The rewrite will fix this.\n" if $verbose;
1356                 } else {
1357                         printf STDERR "  You should do a rewrite to fix this.\n";
1358                 }
1359         }
1360         close(IN);
1361         return(%ret);
1362 }
1363
1364 sub parse_number
1365 {
1366         (my $str, my $what) = @_;
1367         (my $n, my $v, my $i) = split(/\\/,$str);
1368         if ($what eq "n") {
1369                 return $n;
1370         } else {
1371                 return $i;
1372         }
1373 }
1374
1375 sub rewrite_numbers
1376 {
1377         (*OUT,$name,*nums,@symbols)=@_;
1378         my $thing;
1379
1380         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1381         my $r; my %r; my %rsyms;
1382         foreach $r (@r) {
1383                 (my $s, my $i) = split /\\/, $r;
1384                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1385                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1386                 $r{$a} = $s."\\".$i;
1387                 $rsyms{$s} = 1;
1388         }
1389
1390         my %syms = ();
1391         foreach $_ (@symbols) {
1392                 (my $n, my $i) = split /\\/;
1393                 $syms{$n} = 1;
1394         }
1395
1396         my @s=sort {
1397             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1398             || $a cmp $b
1399         } keys %nums;
1400         foreach $sym (@s) {
1401                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1402                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1403                 next if defined($rsyms{$sym});
1404                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1405                 $i="NOEXIST::FUNCTION:"
1406                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1407                 my $s2 = $sym;
1408                 $s2 =~ s/\{[0-9]+\}$//;
1409                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1410                 if (exists $r{$sym}) {
1411                         (my $s, $i) = split /\\/,$r{$sym};
1412                         my $s2 = $s;
1413                         $s2 =~ s/\{[0-9]+\}$//;
1414                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1415                 }
1416         }
1417 }
1418
1419 sub update_numbers
1420 {
1421         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1422         my $new_syms = 0;
1423         my $basevers;
1424         my $vers;
1425
1426         ($basevers, $vers) = get_openssl_version();
1427
1428         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1429         my $r; my %r; my %rsyms;
1430         foreach $r (@r) {
1431                 (my $s, my $i) = split /\\/, $r;
1432                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1433                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1434                 $r{$a} = $s."\\".$i;
1435                 $rsyms{$s} = 1;
1436         }
1437
1438         foreach $sym (@symbols) {
1439                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1440                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1441                 next if defined($rsyms{$sym});
1442                 die "ERROR: Symbol $sym had no info attached to it."
1443                     if $i eq "";
1444                 if (!exists $nums{$s}) {
1445                         $new_syms++;
1446                         my $s2 = $s;
1447                         $s2 =~ s/\{[0-9]+\}$//;
1448                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1449                         if (exists $r{$s}) {
1450                                 ($s, $i) = split /\\/,$r{$s};
1451                                 $s =~ s/\{[0-9]+\}$//;
1452                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1453                         }
1454                 }
1455         }
1456         if($new_syms) {
1457                 print STDERR "$name: Added $new_syms new symbols\n";
1458         } else {
1459                 print STDERR "$name: No new symbols added\n";
1460         }
1461 }
1462
1463 sub check_existing
1464 {
1465         (*nums, my @symbols)=@_;
1466         my %existing; my @remaining;
1467         @remaining=();
1468         foreach $sym (@symbols) {
1469                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1470                 $existing{$s}=1;
1471         }
1472         foreach $sym (keys %nums) {
1473                 if (!exists $existing{$sym}) {
1474                         push @remaining, $sym;
1475                 }
1476         }
1477         if(@remaining) {
1478                 print STDERR "The following symbols do not seem to exist:\n";
1479                 foreach $sym (@remaining) {
1480                         print STDERR "\t",$sym,"\n";
1481                 }
1482         }
1483 }
1484
1485 sub count_parens
1486 {
1487         my $line = shift(@_);
1488
1489         my $open = $line =~ tr/\(//;
1490         my $close = $line =~ tr/\)//;
1491
1492         return $open - $close;
1493 }
1494
1495 #Parse opensslv.h to get the current version number. Also work out the base
1496 #version, i.e. the lowest version number that is binary compatible with this
1497 #version
1498 sub get_openssl_version()
1499 {
1500         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1501         open (IN, "$fn") || die "Can't open opensslv.h";
1502
1503         while(<IN>) {
1504                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1505                         my $suffix = $2;
1506                         (my $baseversion = $1) =~ s/\./_/g;
1507                         close IN;
1508                         return ($baseversion."0", $baseversion.$suffix);
1509                 }
1510         }
1511         die "Can't find OpenSSL version number\n";
1512 }
1513
1514 #Given an OpenSSL version number, calculate the next version number. If the
1515 #version number gets to a.b.czz then we go to a.b.(c+1)
1516 sub get_next_version()
1517 {
1518         my $thisversion = shift;
1519
1520         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1521
1522         if ($letter eq "zz") {
1523                 my $lastnum = substr($base, -1);
1524                 return substr($base, 0, length($base)-1).(++$lastnum);
1525         }
1526         return $base.get_next_letter($letter);
1527 }
1528
1529 #Given the letters off the end of an OpenSSL version string, calculate what
1530 #the letters for the next release would be.
1531 sub get_next_letter()
1532 {
1533         my $thisletter = shift;
1534         my $baseletter = "";
1535         my $endletter;
1536
1537         if ($thisletter eq "") {
1538                 return "a";
1539         }
1540         if ((length $thisletter) > 1) {
1541                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1542         } else {
1543                 $endletter = $thisletter;
1544         }
1545
1546         if ($endletter eq "z") {
1547                 return $thisletter."a";
1548         } else {
1549                 return $baseletter.(++$endletter);
1550         }
1551 }
1552
1553 #Check if a version is less than or equal to the current version. Its a fatal
1554 #error if not. They must also only differ in letters, or the last number (i.e.
1555 #the first two numbers must be the same)
1556 sub check_version_lte()
1557 {
1558         my ($testversion, $currversion) = @_;
1559         my $lentv;
1560         my $lencv;
1561         my $cvbase;
1562
1563         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1564         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1565
1566         #Die if we can't parse the version numbers or they don't look sane
1567         die "Invalid version number: $testversion and $currversion\n"
1568                 if (!defined($cvnums) || !defined($tvnums)
1569                         || length($cvnums) != 5
1570                         || length($tvnums) != 5);
1571
1572         #If the base versions (without letters) don't match check they only differ
1573         #in the last number
1574         if ($cvnums ne $tvnums) {
1575                 die "Invalid version number: $testversion "
1576                         ."for current version $currversion\n"
1577                         if (substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1578                 return;
1579         }
1580         #If we get here then the base version (i.e. the numbers) are the same - they
1581         #only differ in the letters
1582
1583         $lentv = length $testversion;
1584         $lencv = length $currversion;
1585
1586         #If the testversion has more letters than the current version then it must
1587         #be later (or malformed)
1588         if ($lentv > $lencv) {
1589                 die "Invalid version number: $testversion "
1590                         ."is greater than $currversion\n";
1591         }
1592
1593         #Get the last letter from the current version
1594         my ($cvletter) = $currversion =~ /([a-z])$/;
1595         if (defined $cvletter) {
1596                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1597         } else {
1598                 $cvbase = $currversion;
1599         }
1600         die "Unable to parse version number $currversion" if (!defined $cvbase);
1601         my $tvbase;
1602         my ($tvletter) = $testversion =~ /([a-z])$/;
1603         if (defined $tvletter) {
1604                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1605         } else {
1606                 $tvbase = $testversion;
1607         }
1608         die "Unable to parse version number $testversion" if (!defined $tvbase);
1609
1610         if ($lencv > $lentv) {
1611                 #If current version has more letters than testversion then testversion
1612                 #minus the final letter must be a substring of the current version
1613                 die "Invalid version number $testversion "
1614                         ."is greater than $currversion or is invalid\n"
1615                         if (index($cvbase, $tvbase) != 0);
1616         } else {
1617                 #If both versions have the same number of letters then they must be
1618                 #equal up to the last letter, and the last letter in testversion must
1619                 #be less than or equal to the last letter in current version.
1620                 die "Invalid version number $testversion "
1621                         ."is greater than $currversion\n"
1622                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1623         }
1624 }
1625
1626 sub do_deprecated()
1627 {
1628         my ($decl, $plats, $algs) = @_;
1629         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1630             or die "Bad DEPRECATEDIN: $decl\n";
1631         my $info1 .= "#INFO:";
1632         $info1 .= join(',', @{$plats}) . ":";
1633         my $info2 = $info1;
1634         $info1 .= join(',',@{$algs}, $1) . ";";
1635         $info2 .= join(',',@{$algs}) . ";";
1636         return $info1 . $2 . ";" . $info2;
1637 }