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 my $aix=0;
 130 # Set this to make typesafe STACK definitions appear in DEF
 131 my $safe_stack_def = 0;
 132
 133 my @known_platforms = ( "__FreeBSD__", "PERL5",
 134                         "EXPORT_VAR_AS_FUNCTION", "ZLIB", "_WIN32"
 135                         );
 136 my @known_ossl_platforms = ( "UNIX", "VMS", "WIN32", "WINNT", "OS2" );
 137 my @known_algorithms = ( # These are algorithms we know are guarded in relevant
 138                          # header files, but aren't actually disablable.
 139                          # Without these, this script will warn a lot.
 140                          "RSA", "MD5",
 141                          # @disablables comes from configdata.pm
 142                          map { (my $x = uc $_) =~ s|-|_|g; $x; } @disablables,
 143                          # Deprecated functions.  Not really algorithmss, but
 144                          # treated as such here for the sake of simplicity
 145                          "DEPRECATEDIN_0_9_8",
 146                          "DEPRECATEDIN_1_0_0",
 147                          "DEPRECATEDIN_1_1_0",
 148                          "DEPRECATEDIN_1_2_0",
 149                      );
 150
 151 # %disabled comes from configdata.pm
 152 my %disabled_algorithms =
 153     map { (my $x = uc $_) =~ s|-|_|g; $x => 1; } keys %disabled;
 154
 155 my $apiv = sprintf "%x%02x%02x", split(/\./, $config{api});
 156 foreach (@known_algorithms) {
 157         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 158                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 159                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 160         }
 161 }
 162
 163 my $zlib;
 164
 165 foreach (@ARGV, split(/ /, $config{options}))
 166         {
 167         $debug=1 if $_ eq "debug";
 168         $trace=1 if $_ eq "trace";
 169         $verbose=1 if $_ eq "verbose";
 170         $W32=1 if $_ eq "32";
 171         die "win16 not supported" if $_ eq "16";
 172         if($_ eq "NT") {
 173                 $W32 = 1;
 174                 $NT = 1;
 175         } elsif ($_ eq "linux") {
 176                 $linux=1;
 177                 $UNIX=1;
 178         } elsif ($_ eq "aix") {
 179                 $aix=1;
 180                 $UNIX=1;
 181         } elsif ($_ eq "VMS") {
 182                 $VMS=1;
 183         }
 184         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 185                          || $_ eq "enable-zlib-dynamic") {
 186                 $zlib = 1;
 187         }
 188
 189         $do_crypto=1 if $_ eq "libcrypto" || $_ eq "crypto";
 190         $do_ssl=1 if $_ eq "libssl" || $_ eq "ssl";
 191
 192         $do_update=1 if $_ eq "update";
 193         $do_rewrite=1 if $_ eq "rewrite";
 194         $do_ctest=1 if $_ eq "ctest";
 195         $do_ctestall=1 if $_ eq "ctestall";
 196         $do_checkexist=1 if $_ eq "exist";
 197         }
 198 $libname = $unified_info{sharednames}->{libcrypto} if $do_crypto;
 199 $libname = $unified_info{sharednames}->{libssl} if $do_ssl;
 200
 201 if (!$libname) {
 202         if ($do_ssl) {
 203                 $libname="LIBSSL";
 204         }
 205         if ($do_crypto) {
 206                 $libname="LIBCRYPTO";
 207         }
 208 }
 209
 210 # If no platform is given, assume WIN32
 211 if ($W32 + $VMS + $linux + $aix == 0) {
 212         $W32 = 1;
 213 }
 214 die "Please, only one platform at a time"
 215     if ($W32 + $VMS + $linux + $aix > 1);
 216
 217 if (!$do_ssl && !$do_crypto)
 218         {
 219         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 220         exit(1);
 221         }
 222
 223 %ssl_list=&load_numbers($ssl_num);
 224 $max_ssl = $max_num;
 225 %crypto_list=&load_numbers($crypto_num);
 226 $max_crypto = $max_num;
 227
 228 my $ssl="include/openssl/ssl.h";
 229 $ssl.=" include/openssl/sslerr.h";
 230 $ssl.=" include/openssl/tls1.h";
 231 $ssl.=" include/openssl/srtp.h";
 232
 233 # When scanning include/openssl, skip all SSL files and some internal ones.
 234 my %skipthese;
 235 foreach my $f ( split(/\s+/, $ssl) ) {
 236     $skipthese{$f} = 1;
 237 }
 238 $skipthese{'include/openssl/conf_api.h'} = 1;
 239 $skipthese{'include/openssl/ebcdic.h'} = 1;
 240 $skipthese{'include/openssl/opensslconf.h'} = 1;
 241
 242 # We use headers found in include/openssl and include/internal only.
 243 # The latter is needed so libssl.so/.dll/.exe can link properly.
 244 my $crypto ="include/internal/dso.h";
 245 $crypto.=" include/internal/o_dir.h";
 246 $crypto.=" include/internal/o_str.h";
 247 $crypto.=" include/internal/err.h";
 248 $crypto.=" include/internal/sslconf.h";
 249 foreach my $f ( glob(catfile($config{sourcedir},'include/openssl/*.h')) ) {
 250     my $fn = "include/openssl/" . lc(basename($f));
 251     $crypto .= " $fn" if !defined $skipthese{$fn};
 252 }
 253
 254 my $symhacks="include/openssl/symhacks.h";
 255
 256 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 257 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 258
 259 if ($do_update) {
 260
 261 if ($do_ssl == 1) {
 262
 263         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 264         if ($do_rewrite == 1) {
 265                 open(OUT, ">$ssl_num");
 266                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 267         } else {
 268                 open(OUT, ">>$ssl_num");
 269         }
 270         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 271         close OUT;
 272 }
 273
 274 if($do_crypto == 1) {
 275
 276         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 277         if ($do_rewrite == 1) {
 278                 open(OUT, ">$crypto_num");
 279                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 280         } else {
 281                 open(OUT, ">>$crypto_num");
 282         }
 283         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 284         close OUT;
 285 }
 286
 287 } elsif ($do_checkexist) {
 288         &check_existing(*ssl_list, @ssl_symbols)
 289                 if $do_ssl == 1;
 290         &check_existing(*crypto_list, @crypto_symbols)
 291                 if $do_crypto == 1;
 292 } elsif ($do_ctest || $do_ctestall) {
 293
 294         print <<"EOF";
 295
 296 /* Test file to check all DEF file symbols are present by trying
 297  * to link to all of them. This is *not* intended to be run!
 298  */
 299
 300 int main()
 301 {
 302 EOF
 303         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 304                 if $do_ssl == 1;
 305
 306         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 307                 if $do_crypto == 1;
 308
 309         print "}\n";
 310
 311 } else {
 312
 313         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 314                 if $do_ssl == 1;
 315
 316         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 317                 if $do_crypto == 1;
 318
 319 }
 320
 321
 322 sub do_defs
 323 {
 324         my($name,$files,$symhacksfile)=@_;
 325         my $file;
 326         my @ret;
 327         my %syms;
 328         my %platform;           # For anything undefined, we assume ""
 329         my %kind;               # For anything undefined, we assume "FUNCTION"
 330         my %algorithm;          # For anything undefined, we assume ""
 331         my %variant;
 332         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 333                                 # is the same name as the original.
 334         my $cpp;
 335         my %unknown_algorithms = ();
 336         my $parens = 0;
 337
 338         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 339                 {
 340                 my $fn = catfile($config{sourcedir},$file);
 341                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 342                 print STDERR "TRACE: start reading $fn\n" if $trace;
 343                 open(IN,"<$fn") || die "Can't open $fn, $!,";
 344                 my $line = "", my $def= "";
 345                 my %tag = (
 346                         (map { $_ => 0 } @known_platforms),
 347                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 348                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 349                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 350                         (grep /^DEPRECATED_/, @known_algorithms),
 351                         NOPROTO         => 0,
 352                         PERL5           => 0,
 353                         _WINDLL         => 0,
 354                         CONST_STRICT    => 0,
 355                         TRUE            => 1,
 356                 );
 357                 my $symhacking = $file eq $symhacksfile;
 358                 my @current_platforms = ();
 359                 my @current_algorithms = ();
 360
 361                 # params: symbol, alias, platforms, kind
 362                 # The reason to put this subroutine in a variable is that
 363                 # it will otherwise create it's own, unshared, version of
 364                 # %tag and %variant...
 365                 my $make_variant = sub
 366                 {
 367                         my ($s, $a, $p, $k) = @_;
 368                         my ($a1, $a2);
 369
 370                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 371                         if (defined($p))
 372                         {
 373                                 $a1 = join(",",$p,
 374                                            grep(!/^$/,
 375                                                 map { $tag{$_} == 1 ? $_ : "" }
 376                                                 @known_platforms));
 377                         }
 378                         else
 379                         {
 380                                 $a1 = join(",",
 381                                            grep(!/^$/,
 382                                                 map { $tag{$_} == 1 ? $_ : "" }
 383                                                 @known_platforms));
 384                         }
 385                         $a2 = join(",",
 386                                    grep(!/^$/,
 387                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 388                                         @known_ossl_platforms));
 389                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 390                         if ($a1 eq "") { $a1 = $a2; }
 391                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 392                         if ($a eq $s)
 393                         {
 394                                 if (!defined($variant_cnt{$s}))
 395                                 {
 396                                         $variant_cnt{$s} = 0;
 397                                 }
 398                                 $variant_cnt{$s}++;
 399                                 $a .= "{$variant_cnt{$s}}";
 400                         }
 401                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 402                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 403                         if (!grep(/^$togrep$/,
 404                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 405                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 406                                 $variant{$s} .= $toadd;
 407                         }
 408                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 409                 };
 410
 411                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 412                 while(<IN>) {
 413                         s|\R$||; # Better chomp
 414                         if($parens > 0) {
 415                                 #Inside a DEPRECATEDIN
 416                                 $stored_multiline .= $_;
 417                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 418                                 $parens = count_parens($stored_multiline);
 419                                 if ($parens == 0) {
 420                                         $def .= do_deprecated($stored_multiline,
 421                                                         \@current_platforms,
 422                                                         \@current_algorithms);
 423                                 }
 424                                 next;
 425                         }
 426                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 427                                 {
 428                                 undef @tag;
 429                                 last;
 430                                 }
 431                         if ($line ne '') {
 432                                 $_ = $line . $_;
 433                                 $line = '';
 434                         }
 435
 436                         if (/\\$/) {
 437                                 $line = $`; # keep what was before the backslash
 438                                 next;
 439                         }
 440
 441                         if(/\/\*/) {
 442                                 if (not /\*\//) {       # multi-line comment...
 443                                         $line = $_;     # ... just accumulate
 444                                         next;
 445                                 } else {
 446                                         s/\/\*.*?\*\///gs;# wipe it
 447                                 }
 448                         }
 449
 450                         if ($cpp) {
 451                                 $cpp++ if /^#\s*if/;
 452                                 $cpp-- if /^#\s*endif/;
 453                                 next;
 454                         }
 455                         if (/^#.*ifdef.*cplusplus/) {
 456                                 $cpp = 1;
 457                                 next;
 458                         }
 459
 460                         s/{[^{}]*}//gs;                      # ignore {} blocks
 461                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 462                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 463                         if (/^\#\s*if\s+OPENSSL_API_COMPAT\s*(\S)\s*(0x[0-9a-fA-F]{8})L\s*$/) {
 464                                 my $op = $1;
 465                                 my $v = hex($2);
 466                                 if ($op ne '<' && $op ne '>=') {
 467                                     die "$file unacceptable operator $op: $_\n";
 468                                 }
 469                                 my ($one, $major, $minor) =
 470                                     ( ($v >> 28) & 0xf,
 471                                       ($v >> 20) & 0xff,
 472                                       ($v >> 12) & 0xff );
 473                                 my $t = "DEPRECATEDIN_${one}_${major}_${minor}";
 474                                 push(@tag,"-");
 475                                 push(@tag,$t);
 476                                 $tag{$t}=($op eq '<' ? 1 : -1);
 477                                 print STDERR "DEBUG: $file: found tag $t = $tag{$t}\n" if $debug;
 478                         } elsif (/^\#\s*ifndef\s+(.*)/) {
 479                                 push(@tag,"-");
 480                                 push(@tag,$1);
 481                                 $tag{$1}=-1;
 482                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 483                         } elsif (/^\#\s*if\s+!defined\s*\(([^\)]+)\)/) {
 484                                 push(@tag,"-");
 485                                 if (/^\#\s*if\s+(!defined\s*\(([^\)]+)\)(\s+\&\&\s+!defined\s*\(([^\)]+)\))*)$/) {
 486                                         my $tmp_1 = $1;
 487                                         my $tmp_;
 488                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 489                                                 $tmp_ =~ /!defined\s*\(([^\)]+)\)/;
 490                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 491                                                 push(@tag,$1);
 492                                                 $tag{$1}=-1;
 493                                         }
 494                                 } else {
 495                                         print STDERR "Warning: $file: taking only '!defined($1)' of complicated expression: $_" if $verbose; # because it is O...
 496                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 497                                         push(@tag,$1);
 498                                         $tag{$1}=-1;
 499                                 }
 500                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 501                                 push(@tag,"-");
 502                                 push(@tag,$1);
 503                                 $tag{$1}=1;
 504                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 505                         } elsif (/^\#\s*if\s+defined\s*\(([^\)]+)\)/) {
 506                                 push(@tag,"-");
 507                                 if (/^\#\s*if\s+(defined\s*\(([^\)]+)\)(\s+\|\|\s+defined\s*\(([^\)]+)\))*)$/) {
 508                                         my $tmp_1 = $1;
 509                                         my $tmp_;
 510                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 511                                                 $tmp_ =~ /defined\s*\(([^\)]+)\)/;
 512                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 513                                                 push(@tag,$1);
 514                                                 $tag{$1}=1;
 515                                         }
 516                                 } else {
 517                                         print STDERR "Warning: $file: taking only 'defined($1)' of complicated expression: $_\n" if $verbose; # because it is O...
 518                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 519                                         push(@tag,$1);
 520                                         $tag{$1}=1;
 521                                 }
 522                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 523                                 my $tag_i = $#tag;
 524                                 while($tag[$tag_i] ne "-") {
 525                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 526                                                 $tag{$tag[$tag_i]}=2;
 527                                                 print STDERR "DEBUG: $file: changed tag $1 = 2\n" if $debug;
 528                                         }
 529                                         $tag_i--;
 530                                 }
 531                         } elsif (/^\#\s*endif/) {
 532                                 my $tag_i = $#tag;
 533                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 534                                         my $t=$tag[$tag_i];
 535                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 536                                         if ($tag{$t}==2) {
 537                                                 $tag{$t}=-1;
 538                                         } else {
 539                                                 $tag{$t}=0;
 540                                         }
 541                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 542                                         pop(@tag);
 543                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 544                                                 $t=$1;
 545                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 546                                                 $t=$1;
 547                                         } else {
 548                                                 $t="";
 549                                         }
 550                                         if ($t ne ""
 551                                             && !grep(/^$t$/, @known_algorithms)) {
 552                                                 $unknown_algorithms{$t} = 1;
 553                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 554                                         }
 555                                         $tag_i--;
 556                                 }
 557                                 pop(@tag);
 558                         } elsif (/^\#\s*else/) {
 559                                 my $tag_i = $#tag;
 560                                 die "$file unmatched else\n" if $tag_i < 0;
 561                                 while($tag[$tag_i] ne "-") {
 562                                         my $t=$tag[$tag_i];
 563                                         $tag{$t}= -$tag{$t};
 564                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 565                                         $tag_i--;
 566                                 }
 567                         } elsif (/^\#\s*if\s+1/) {
 568                                 push(@tag,"-");
 569                                 # Dummy tag
 570                                 push(@tag,"TRUE");
 571                                 $tag{"TRUE"}=1;
 572                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 573                         } elsif (/^\#\s*if\s+0/) {
 574                                 push(@tag,"-");
 575                                 # Dummy tag
 576                                 push(@tag,"TRUE");
 577                                 $tag{"TRUE"}=-1;
 578                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 579                         } elsif (/^\#\s*if\s+/) {
 580                                 #Some other unrecognized "if" style
 581                                 push(@tag,"-");
 582                                 print STDERR "Warning: $file: ignoring unrecognized expression: $_\n" if $verbose; # because it is O...
 583                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 584                                  && $symhacking && $tag{'TRUE'} != -1) {
 585                                 # This is for aliasing.  When we find an alias,
 586                                 # we have to invert
 587                                 &$make_variant($1,$2);
 588                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 589                         }
 590                         if (/^\#/) {
 591                                 @current_platforms =
 592                                     grep(!/^$/,
 593                                          map { $tag{$_} == 1 ? $_ :
 594                                                    $tag{$_} == -1 ? "!".$_  : "" }
 595                                          @known_platforms);
 596                                 push @current_platforms
 597                                     , grep(!/^$/,
 598                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 599                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 600                                            @known_ossl_platforms);
 601                                 @current_algorithms = ();
 602                                 @current_algorithms =
 603                                     grep(!/^$/,
 604                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 605                                          @known_algorithms);
 606                                 push @current_algorithms
 607                                     , grep(!/^$/,
 608                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 609                                          @known_algorithms);
 610                                 push @current_algorithms,
 611                                     grep { /^DEPRECATEDIN_/ && $tag{$_} == 1 }
 612                                     @known_algorithms;
 613                                 $def .=
 614                                     "#INFO:"
 615                                         .join(',',@current_platforms).":"
 616                                             .join(',',@current_algorithms).";";
 617                                 next;
 618                         }
 619                         if ($tag{'TRUE'} != -1) {
 620                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 621                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 622                                         next;
 623                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 624                                         $def .= "int d2i_$3(void);";
 625                                         $def .= "int i2d_$3(void);";
 626                                         # Variant for platforms that do not
 627                                         # have to access global variables
 628                                         # in shared libraries through functions
 629                                         $def .=
 630                                             "#INFO:"
 631                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 632                                                     .join(',',@current_algorithms).";";
 633                                         $def .= "OPENSSL_EXTERN int $2_it;";
 634                                         $def .=
 635                                             "#INFO:"
 636                                                 .join(',',@current_platforms).":"
 637                                                     .join(',',@current_algorithms).";";
 638                                         # Variant for platforms that have to
 639                                         # access global variables in shared
 640                                         # libraries through functions
 641                                         &$make_variant("$2_it","$2_it",
 642                                                       "EXPORT_VAR_AS_FUNCTION",
 643                                                       "FUNCTION");
 644                                         next;
 645                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 646                                         $def .= "int d2i_$3(void);";
 647                                         $def .= "int i2d_$3(void);";
 648                                         $def .= "int $3_free(void);";
 649                                         $def .= "int $3_new(void);";
 650                                         # Variant for platforms that do not
 651                                         # have to access global variables
 652                                         # in shared libraries through functions
 653                                         $def .=
 654                                             "#INFO:"
 655                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 656                                                     .join(',',@current_algorithms).";";
 657                                         $def .= "OPENSSL_EXTERN int $2_it;";
 658                                         $def .=
 659                                             "#INFO:"
 660                                                 .join(',',@current_platforms).":"
 661                                                     .join(',',@current_algorithms).";";
 662                                         # Variant for platforms that have to
 663                                         # access global variables in shared
 664                                         # libraries through functions
 665                                         &$make_variant("$2_it","$2_it",
 666                                                       "EXPORT_VAR_AS_FUNCTION",
 667                                                       "FUNCTION");
 668                                         next;
 669                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 670                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 671                                         $def .= "int d2i_$1(void);";
 672                                         $def .= "int i2d_$1(void);";
 673                                         $def .= "int $1_free(void);";
 674                                         $def .= "int $1_new(void);";
 675                                         # Variant for platforms that do not
 676                                         # have to access global variables
 677                                         # in shared libraries through functions
 678                                         $def .=
 679                                             "#INFO:"
 680                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 681                                                     .join(',',@current_algorithms).";";
 682                                         $def .= "OPENSSL_EXTERN int $1_it;";
 683                                         $def .=
 684                                             "#INFO:"
 685                                                 .join(',',@current_platforms).":"
 686                                                     .join(',',@current_algorithms).";";
 687                                         # Variant for platforms that have to
 688                                         # access global variables in shared
 689                                         # libraries through functions
 690                                         &$make_variant("$1_it","$1_it",
 691                                                       "EXPORT_VAR_AS_FUNCTION",
 692                                                       "FUNCTION");
 693                                         next;
 694                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 695                                         $def .= "int d2i_$2(void);";
 696                                         $def .= "int i2d_$2(void);";
 697                                         # Variant for platforms that do not
 698                                         # have to access global variables
 699                                         # in shared libraries through functions
 700                                         $def .=
 701                                             "#INFO:"
 702                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 703                                                     .join(',',@current_algorithms).";";
 704                                         $def .= "OPENSSL_EXTERN int $2_it;";
 705                                         $def .=
 706                                             "#INFO:"
 707                                                 .join(',',@current_platforms).":"
 708                                                     .join(',',@current_algorithms).";";
 709                                         # Variant for platforms that have to
 710                                         # access global variables in shared
 711                                         # libraries through functions
 712                                         &$make_variant("$2_it","$2_it",
 713                                                       "EXPORT_VAR_AS_FUNCTION",
 714                                                       "FUNCTION");
 715                                         next;
 716                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 717                                         $def .= "int $1_free(void);";
 718                                         $def .= "int $1_new(void);";
 719                                         next;
 720                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 721                                         $def .= "int d2i_$2(void);";
 722                                         $def .= "int i2d_$2(void);";
 723                                         $def .= "int $2_free(void);";
 724                                         $def .= "int $2_new(void);";
 725                                         # Variant for platforms that do not
 726                                         # have to access global variables
 727                                         # in shared libraries through functions
 728                                         $def .=
 729                                             "#INFO:"
 730                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 731                                                     .join(',',@current_algorithms).";";
 732                                         $def .= "OPENSSL_EXTERN int $2_it;";
 733                                         $def .=
 734                                             "#INFO:"
 735                                                 .join(',',@current_platforms).":"
 736                                                     .join(',',@current_algorithms).";";
 737                                         # Variant for platforms that have to
 738                                         # access global variables in shared
 739                                         # libraries through functions
 740                                         &$make_variant("$2_it","$2_it",
 741                                                       "EXPORT_VAR_AS_FUNCTION",
 742                                                       "FUNCTION");
 743                                         next;
 744                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 745                                         # Variant for platforms that do not
 746                                         # have to access global variables
 747                                         # in shared libraries through functions
 748                                         $def .=
 749                                             "#INFO:"
 750                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 751                                                     .join(',',@current_algorithms).";";
 752                                         $def .= "OPENSSL_EXTERN int $1_it;";
 753                                         $def .=
 754                                             "#INFO:"
 755                                                 .join(',',@current_platforms).":"
 756                                                     .join(',',@current_algorithms).";";
 757                                         # Variant for platforms that have to
 758                                         # access global variables in shared
 759                                         # libraries through functions
 760                                         &$make_variant("$1_it","$1_it",
 761                                                       "EXPORT_VAR_AS_FUNCTION",
 762                                                       "FUNCTION");
 763                                         next;
 764                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 765                                         $def .= "int i2d_$1_NDEF(void);";
 766                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 767                                         next;
 768                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 769                                         $def .= "int $1_print_ctx(void);";
 770                                         next;
 771                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 772                                         $def .= "int $2_print_ctx(void);";
 773                                         next;
 774                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 775                                         next;
 776                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 777                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 778                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 779                                         $def .=
 780                                             "#INFO:"
 781                                                 .join(',',@current_platforms).":"
 782                                                     .join(',',"STDIO",@current_algorithms).";";
 783                                         $def .= "int PEM_read_$1(void);";
 784                                         $def .= "int PEM_write_$1(void);";
 785                                         $def .=
 786                                             "#INFO:"
 787                                                 .join(',',@current_platforms).":"
 788                                                     .join(',',@current_algorithms).";";
 789                                         # Things that are everywhere
 790                                         $def .= "int PEM_read_bio_$1(void);";
 791                                         $def .= "int PEM_write_bio_$1(void);";
 792                                         next;
 793                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 794                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 795                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 796                                         $def .=
 797                                             "#INFO:"
 798                                                 .join(',',@current_platforms).":"
 799                                                     .join(',',"STDIO",@current_algorithms).";";
 800                                         $def .= "int PEM_write_$1(void);";
 801                                         $def .=
 802                                             "#INFO:"
 803                                                 .join(',',@current_platforms).":"
 804                                                     .join(',',@current_algorithms).";";
 805                                         # Things that are everywhere
 806                                         $def .= "int PEM_write_bio_$1(void);";
 807                                         next;
 808                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 809                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 810                                         $def .=
 811                                             "#INFO:"
 812                                                 .join(',',@current_platforms).":"
 813                                                     .join(',',"STDIO",@current_algorithms).";";
 814                                         $def .= "int PEM_read_$1(void);";
 815                                         $def .=
 816                                             "#INFO:"
 817                                                 .join(',',@current_platforms).":"
 818                                                     .join(',',"STDIO",@current_algorithms).";";
 819                                         # Things that are everywhere
 820                                         $def .= "int PEM_read_bio_$1(void);";
 821                                         next;
 822                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 823                                         # Variant for platforms that do not
 824                                         # have to access global variables
 825                                         # in shared libraries through functions
 826                                         $def .=
 827                                             "#INFO:"
 828                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 829                                                     .join(',',@current_algorithms).";";
 830                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 831                                         $def .=
 832                                             "#INFO:"
 833                                                 .join(',',@current_platforms).":"
 834                                                     .join(',',@current_algorithms).";";
 835                                         # Variant for platforms that have to
 836                                         # access global variables in shared
 837                                         # libraries through functions
 838                                         &$make_variant("_shadow_$2","_shadow_$2",
 839                                                       "EXPORT_VAR_AS_FUNCTION",
 840                                                       "FUNCTION");
 841                                 } elsif (/^\s*DEPRECATEDIN/) {
 842                                         $parens = count_parens($_);
 843                                         if ($parens == 0) {
 844                                                 $def .= do_deprecated($_,
 845                                                         \@current_platforms,
 846                                                         \@current_algorithms);
 847                                         } else {
 848                                                 $stored_multiline = $_;
 849                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 850                                                 next;
 851                                         }
 852                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 853                                         if (/\{|\/\*|\([^\)]*$/) {
 854                                                 $line = $_;
 855                                         } else {
 856                                                 $def .= $_;
 857                                         }
 858                                 }
 859                         }
 860                 }
 861                 close(IN);
 862                 die "$file: Unmatched tags\n" if $#tag >= 0;
 863
 864                 my $algs;
 865                 my $plays;
 866
 867                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 868                 foreach (split /;/, $def) {
 869                         my $s; my $k = "FUNCTION"; my $p; my $a;
 870                         s/^[\n\s]*//g;
 871                         s/[\n\s]*$//g;
 872                         next if(/\#undef/);
 873                         next if(/typedef\W/);
 874                         next if(/\#define/);
 875
 876                         print STDERR "TRACE: processing $_\n" if $trace && !/^\#INFO:/;
 877                         # Reduce argument lists to empty ()
 878                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 879                         my $nsubst = 1; # prevent infinite loop, e.g., on  int fn()
 880                         while($nsubst && /\(.*\)/s) {
 881                                 $nsubst = s/\([^\(\)]+\)/\{\}/gs;
 882                                 $nsubst+= s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;  #(*f{}) -> f
 883                         }
 884                         # pretend as we didn't use curly braces: {} -> ()
 885                         s/\{\}/\(\)/gs;
 886
 887                         s/STACK_OF\(\)/void/gs;
 888                         s/LHASH_OF\(\)/void/gs;
 889
 890                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 891                         if (/^\#INFO:([^:]*):(.*)$/) {
 892                                 $plats = $1;
 893                                 $algs = $2;
 894                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 895                                 next;
 896                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 897                                 $s = $1;
 898                                 $k = "VARIABLE";
 899                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 900                         } elsif (/TYPEDEF_\w+_OF/s) {
 901                                 next;
 902                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 903                                 $s = $1;                # a function name!
 904                                 print STDERR "DEBUG: found function $s\n" if $debug;
 905                         } elsif (/\(/ and not (/=/)) {
 906                                 print STDERR "File $file: cannot parse: $_;\n";
 907                                 next;
 908                         } else {
 909                                 next;
 910                         }
 911
 912                         $syms{$s} = 1;
 913                         $kind{$s} = $k;
 914
 915                         $p = $plats;
 916                         $a = $algs;
 917
 918                         $platform{$s} =
 919                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 920                         $algorithm{$s} .= ','.$a;
 921
 922                         if (defined($variant{$s})) {
 923                                 foreach $v (split /;/,$variant{$s}) {
 924                                         (my $r, my $p, my $k) = split(/:/,$v);
 925                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 926                                         $syms{$r} = 1;
 927                                         if (!defined($k)) { $k = $kind{$s}; }
 928                                         $kind{$r} = $k."(".$s.")";
 929                                         $algorithm{$r} = $algorithm{$s};
 930                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 931                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 932                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 933                                 }
 934                         }
 935                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 936                 }
 937         }
 938
 939         # Prune the returned symbols
 940
 941         delete $syms{"bn_dump1"};
 942         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 943
 944         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 945         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 946         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 947         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 948
 949         # Info we know about
 950
 951         push @ret, map { $_."\\".&info_string($_,"EXIST",
 952                                               $platform{$_},
 953                                               $kind{$_},
 954                                               $algorithm{$_}) } keys %syms;
 955
 956         if (keys %unknown_algorithms) {
 957                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 958                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 959         }
 960         return(@ret);
 961 }
 962
 963 # Param: string of comma-separated platform-specs.
 964 sub reduce_platforms
 965 {
 966         my ($platforms) = @_;
 967         my $pl = defined($platforms) ? $platforms : "";
 968         my %p = map { $_ => 0 } split /,/, $pl;
 969         my $ret;
 970
 971         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 972             if $debug;
 973         # We do this, because if there's code like the following, it really
 974         # means the function exists in all cases and should therefore be
 975         # everywhere.  By increasing and decreasing, we may attain 0:
 976         #
 977         # ifndef WIN16
 978         #    int foo();
 979         # else
 980         #    int _fat foo();
 981         # endif
 982         foreach $platform (split /,/, $pl) {
 983                 if ($platform =~ /^!(.*)$/) {
 984                         $p{$1}--;
 985                 } else {
 986                         $p{$platform}++;
 987                 }
 988         }
 989         foreach $platform (keys %p) {
 990                 if ($p{$platform} == 0) { delete $p{$platform}; }
 991         }
 992
 993         delete $p{""};
 994
 995         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 996         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 997             if $debug;
 998         return $ret;
 999 }
1000
1001 sub info_string
1002 {
1003         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1004
1005         my %a = defined($algorithms) ?
1006             map { $_ => 1 } split /,/, $algorithms : ();
1007         my $k = defined($kind) ? $kind : "FUNCTION";
1008         my $ret;
1009         my $p = &reduce_platforms($platforms);
1010
1011         delete $a{""};
1012
1013         $ret = $exist;
1014         $ret .= ":".$p;
1015         $ret .= ":".$k;
1016         $ret .= ":".join(',',sort keys %a);
1017         return $ret;
1018 }
1019
1020 sub maybe_add_info
1021 {
1022         (my $name, *nums, my @symbols) = @_;
1023         my $sym;
1024         my $new_info = 0;
1025         my %syms=();
1026
1027         foreach $sym (@symbols) {
1028                 (my $s, my $i) = split /\\/, $sym;
1029                 if (defined($nums{$s})) {
1030                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1031                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1032                         if (!defined($dummy) || $i ne $dummy) {
1033                                 $nums{$s} = $n."\\".$vers."\\".$i;
1034                                 $new_info++;
1035                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1036                         }
1037                 }
1038                 $syms{$s} = 1;
1039         }
1040
1041         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1042         foreach $sym (@s) {
1043                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1044                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1045                         $new_info++;
1046                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1047                 }
1048         }
1049         if ($new_info) {
1050                 print STDERR "$name: $new_info old symbols have updated info\n";
1051                 if (!$do_rewrite) {
1052                         print STDERR "You should do a rewrite to fix this.\n";
1053                 }
1054         } else {
1055         }
1056 }
1057
1058 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1059 sub is_valid
1060 {
1061         my ($keywords_txt,$platforms) = @_;
1062         my (@keywords) = split /,/,$keywords_txt;
1063         my ($falsesum, $truesum) = (0, 1);
1064
1065         # Param: one keyword
1066         sub recognise
1067         {
1068                 my ($keyword,$platforms) = @_;
1069
1070                 if ($platforms) {
1071                         # platforms
1072                         if ($keyword eq "UNIX" && $UNIX) { return 1; }
1073                         if ($keyword eq "VMS" && $VMS) { return 1; }
1074                         if ($keyword eq "WIN32" && $W32) { return 1; }
1075                         if ($keyword eq "_WIN32" && $W32) { return 1; }
1076                         if ($keyword eq "WINNT" && $NT) { return 1; }
1077                         # Special platforms:
1078                         # EXPORT_VAR_AS_FUNCTION means that global variables
1079                         # will be represented as functions.
1080                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && $W32) {
1081                                 return 1;
1082                         }
1083                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1084                         return 0;
1085                 } else {
1086                         # algorithms
1087                         if ($disabled_algorithms{$keyword}) { return 0;}
1088
1089                         # Nothing recognise as true
1090                         return 1;
1091                 }
1092         }
1093
1094         foreach $k (@keywords) {
1095                 if ($k =~ /^!(.*)$/) {
1096                         $falsesum += &recognise($1,$platforms);
1097                 } else {
1098                         $truesum *= &recognise($k,$platforms);
1099                 }
1100         }
1101         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1102         return (!$falsesum) && $truesum;
1103 }
1104
1105 sub print_test_file
1106 {
1107         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1108         my $n = 1; my @e; my @r;
1109         my $sym; my $prev = ""; my $prefSSLeay;
1110
1111         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1112         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1113         @symbols=((sort @e),(sort @r));
1114
1115         foreach $sym (@symbols) {
1116                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1117                 my $v = 0;
1118                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1119                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1120                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1121                 if (!defined($nums{$s})) {
1122                         print STDERR "Warning: $s does not have a number assigned\n"
1123                             if(!$do_update);
1124                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1125                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1126                         if ($prev eq $s2) {
1127                                 print OUT "\t/* The following has already appeared previously */\n";
1128                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1129                         }
1130                         $prev = $s2;    # To warn about duplicates...
1131
1132                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1133                         if ($v) {
1134                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1135                         } else {
1136                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1137                         }
1138                 }
1139         }
1140 }
1141
1142 sub get_version
1143 {
1144    return $config{version};
1145 }
1146
1147 sub print_def_file
1148 {
1149         (*OUT,my $name,*nums,my @symbols)=@_;
1150         my $n = 1; my @e; my @r; my @v; my $prev="";
1151         my $liboptions="";
1152         my $libname = $name;
1153         my $http_vendor = 'www.openssl.org/';
1154         my $version = get_version();
1155         my $what = "OpenSSL: implementation of Secure Socket Layer";
1156         my $description = "$what $version, $name - http://$http_vendor";
1157         my $prevsymversion = "", $prevprevsymversion = "";
1158         # For VMS
1159         my $prevnum = 0;
1160         my $symvtextcount = 0;
1161
1162         if ($W32)
1163                 {
1164                 print OUT <<"EOF";
1165 ;
1166 ; Definition file for the DLL version of the $name library from OpenSSL
1167 ;
1168
1169 LIBRARY         $libname        $liboptions
1170
1171 EOF
1172
1173                 print "EXPORTS\n";
1174                 }
1175         elsif ($VMS)
1176                 {
1177                 print OUT <<"EOF";
1178 IDENTIFICATION=$version
1179 CASE_SENSITIVE=YES
1180 SYMBOL_VECTOR=(-
1181 EOF
1182                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1183                 }
1184
1185         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1186         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1187         if ($VMS) {
1188             # VMS needs to have the symbols on slot number order
1189             @symbols=(map { $_->[1] }
1190                       sort { $a->[0] <=> $b->[0] }
1191                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1192                             die "Error: $s doesn't have a number assigned\n"
1193                                 if !defined($nums{$s});
1194                             (my $n, my @rest) = split /\\/, $nums{$s};
1195                             [ $n, $_ ] } (@e, @r, @v));
1196         } else {
1197             @symbols=((sort @e),(sort @r), (sort @v));
1198         }
1199
1200         my ($baseversion, $currversion) = get_openssl_version();
1201         my $thisversion;
1202         do {
1203                 if (!defined($thisversion)) {
1204                         $thisversion = $baseversion;
1205                 } else {
1206                         $thisversion = get_next_version($thisversion);
1207                 }
1208                 foreach $sym (@symbols) {
1209                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1210                         my $v = 0;
1211                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1212                         if (!defined($nums{$s})) {
1213                                 die "Error: $s does not have a number assigned\n"
1214                                         if(!$do_update);
1215                         } else {
1216                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1217                                 my %pf = ();
1218                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1219                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1220                                 if (is_valid($p,1) && is_valid($a,0)) {
1221                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1222                                         if ($prev eq $s2) {
1223                                                 print STDERR "Warning: Symbol '",$s2,
1224                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1225                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1226                                         }
1227                                         $prev = $s2;    # To warn about duplicates...
1228                                         if($linux) {
1229                                                 next if $symversion ne $thisversion;
1230                                                 if ($symversion ne $prevsymversion) {
1231                                                         if ($prevsymversion ne "") {
1232                                                                 if ($prevprevsymversion ne "") {
1233                                                                         print OUT "} OPENSSL${SO_VARIANT}_"
1234                                                                                                 ."$prevprevsymversion;\n\n";
1235                                                                 } else {
1236                                                                         print OUT "};\n\n";
1237                                                                 }
1238                                                         }
1239                                                         print OUT "OPENSSL${SO_VARIANT}_$symversion {\n    global:\n";
1240                                                         $prevprevsymversion = $prevsymversion;
1241                                                         $prevsymversion = $symversion;
1242                                                 }
1243                                                 print OUT "        $s2;\n";
1244                                         } elsif ($aix) {
1245                                                 print OUT "$s2\n";
1246                                         } elsif ($VMS) {
1247                                             while(++$prevnum < $n) {
1248                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1249                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1250                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1251                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1252                                                 }
1253                                                 if ($symvtextcount == 16) {
1254                                                     # Take away first comma
1255                                                     $symline =~ s/,//;
1256                                                 }
1257                                                 print OUT $symline;
1258                                                 $symvtextcount += length($symline) - 2;
1259                                             }
1260                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1261                                             my $symtype=
1262                                                 $v ? "DATA" : "PROCEDURE";
1263                                             my $symline=
1264                                                 ($s_uc ne $s
1265                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1266                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1267                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1268                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1269                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1270                                             }
1271                                             if ($symvtextcount == 16) {
1272                                                 # Take away first comma
1273                                                 $symline =~ s/,//;
1274                                             }
1275                                             print OUT $symline;
1276                                             $symvtextcount += length($symline) - 2;
1277                                         } elsif($v) {
1278                                                 printf OUT "    %s%-39s DATA\n",
1279                                                                 ($W32)?"":"_",$s2;
1280                                         } else {
1281                                                 printf OUT "    %s%s\n",
1282                                                                 ($W32)?"":"_",$s2;
1283                                         }
1284                                 }
1285                         }
1286                 }
1287         } while ($linux && $thisversion ne $currversion);
1288         if ($linux) {
1289                 if ($prevprevsymversion ne "") {
1290                         print OUT "    local: *;\n} OPENSSL${SO_VARIANT}_$prevprevsymversion;\n\n";
1291                 } else {
1292                         print OUT "    local: *;\n};\n\n";
1293                 }
1294         } elsif ($VMS) {
1295             print OUT ")\n";
1296             (my $libvmaj, my $libvmin, my $libvedit) =
1297                 $currversion =~ /^(\d+)_(\d+)_(\d+)[a-z]{0,2}$/;
1298             # The reason to multiply the edit number with 100 is to make space
1299             # for the possibility that we want to encode the patch letters
1300             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1301         }
1302         printf OUT "\n";
1303 }
1304
1305 sub load_numbers
1306 {
1307         my($name)=@_;
1308         my(@a,%ret);
1309         my $prevversion;
1310
1311         $max_num = 0;
1312         $num_noinfo = 0;
1313         $prev = "";
1314         $prev_cnt = 0;
1315
1316         my ($baseversion, $currversion) = get_openssl_version();
1317
1318         open(IN,"<$name") || die "unable to open $name:$!\n";
1319         while (<IN>) {
1320                 s|\R$||;        # Better chomp
1321                 s/#.*$//;
1322                 next if /^\s*$/;
1323                 @a=split;
1324                 if (defined $ret{$a[0]}) {
1325                         # This is actually perfectly OK
1326                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1327                 }
1328                 if ($max_num > $a[1]) {
1329                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1330                 }
1331                 elsif ($max_num == $a[1]) {
1332                         # This is actually perfectly OK
1333                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1334                         if ($a[0] eq $prev) {
1335                                 $prev_cnt++;
1336                                 $a[0] .= "{$prev_cnt}";
1337                         }
1338                 }
1339                 else {
1340                         $prev_cnt = 0;
1341                 }
1342                 if ($#a < 2) {
1343                         # Existence will be proven later, in do_defs
1344                         $ret{$a[0]}=$a[1];
1345                         $num_noinfo++;
1346                 } else {
1347                         #Sanity check the version number
1348                         if (defined $prevversion) {
1349                                 check_version_lte($prevversion, $a[2]);
1350                         }
1351                         check_version_lte($a[2], $currversion);
1352                         $prevversion = $a[2];
1353                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1354                 }
1355                 $max_num = $a[1] if $a[1] > $max_num;
1356                 $prev=$a[0];
1357         }
1358         if ($num_noinfo) {
1359                 print STDERR "Warning: $num_noinfo symbols were without info." if $verbose || !$do_rewrite;
1360                 if ($do_rewrite) {
1361                         printf STDERR "  The rewrite will fix this.\n" if $verbose;
1362                 } else {
1363                         printf STDERR "  You should do a rewrite to fix this.\n";
1364                 }
1365         }
1366         close(IN);
1367         return(%ret);
1368 }
1369
1370 sub parse_number
1371 {
1372         (my $str, my $what) = @_;
1373         (my $n, my $v, my $i) = split(/\\/,$str);
1374         if ($what eq "n") {
1375                 return $n;
1376         } else {
1377                 return $i;
1378         }
1379 }
1380
1381 sub rewrite_numbers
1382 {
1383         (*OUT,$name,*nums,@symbols)=@_;
1384         my $thing;
1385
1386         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1387         my $r; my %r; my %rsyms;
1388         foreach $r (@r) {
1389                 (my $s, my $i) = split /\\/, $r;
1390                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1391                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1392                 $r{$a} = $s."\\".$i;
1393                 $rsyms{$s} = 1;
1394         }
1395
1396         my %syms = ();
1397         foreach $_ (@symbols) {
1398                 (my $n, my $i) = split /\\/;
1399                 $syms{$n} = 1;
1400         }
1401
1402         my @s=sort {
1403             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1404             || $a cmp $b
1405         } keys %nums;
1406         foreach $sym (@s) {
1407                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1408                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1409                 next if defined($rsyms{$sym});
1410                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1411                 $i="NOEXIST::FUNCTION:"
1412                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1413                 my $s2 = $sym;
1414                 $s2 =~ s/\{[0-9]+\}$//;
1415                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1416                 if (exists $r{$sym}) {
1417                         (my $s, $i) = split /\\/,$r{$sym};
1418                         my $s2 = $s;
1419                         $s2 =~ s/\{[0-9]+\}$//;
1420                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1421                 }
1422         }
1423 }
1424
1425 sub update_numbers
1426 {
1427         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1428         my $new_syms = 0;
1429         my $basevers;
1430         my $vers;
1431
1432         ($basevers, $vers) = get_openssl_version();
1433
1434         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1435         my $r; my %r; my %rsyms;
1436         foreach $r (@r) {
1437                 (my $s, my $i) = split /\\/, $r;
1438                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1439                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1440                 $r{$a} = $s."\\".$i;
1441                 $rsyms{$s} = 1;
1442         }
1443
1444         foreach $sym (@symbols) {
1445                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1446                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1447                 next if defined($rsyms{$sym});
1448                 die "ERROR: Symbol $sym had no info attached to it."
1449                     if $i eq "";
1450                 if (!exists $nums{$s}) {
1451                         $new_syms++;
1452                         my $s2 = $s;
1453                         $s2 =~ s/\{[0-9]+\}$//;
1454                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1455                         if (exists $r{$s}) {
1456                                 ($s, $i) = split /\\/,$r{$s};
1457                                 $s =~ s/\{[0-9]+\}$//;
1458                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1459                         }
1460                 }
1461         }
1462         if($new_syms) {
1463                 print STDERR "$name: Added $new_syms new symbols\n";
1464         } else {
1465                 print STDERR "$name: No new symbols added\n";
1466         }
1467 }
1468
1469 sub check_existing
1470 {
1471         (*nums, my @symbols)=@_;
1472         my %existing; my @remaining;
1473         @remaining=();
1474         foreach $sym (@symbols) {
1475                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1476                 $existing{$s}=1;
1477         }
1478         foreach $sym (keys %nums) {
1479                 if (!exists $existing{$sym}) {
1480                         push @remaining, $sym;
1481                 }
1482         }
1483         if(@remaining) {
1484                 print STDERR "The following symbols do not seem to exist:\n";
1485                 foreach $sym (@remaining) {
1486                         print STDERR "\t",$sym,"\n";
1487                 }
1488         }
1489 }
1490
1491 sub count_parens
1492 {
1493         my $line = shift(@_);
1494
1495         my $open = $line =~ tr/\(//;
1496         my $close = $line =~ tr/\)//;
1497
1498         return $open - $close;
1499 }
1500
1501 #Parse opensslv.h to get the current version number. Also work out the base
1502 #version, i.e. the lowest version number that is binary compatible with this
1503 #version
1504 sub get_openssl_version()
1505 {
1506         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1507         open (IN, "$fn") || die "Can't open opensslv.h";
1508
1509         while(<IN>) {
1510                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1511                         my $suffix = $2;
1512                         (my $baseversion = $1) =~ s/\./_/g;
1513                         close IN;
1514                         return ($baseversion."0", $baseversion.$suffix);
1515                 }
1516         }
1517         die "Can't find OpenSSL version number\n";
1518 }
1519
1520 #Given an OpenSSL version number, calculate the next version number. If the
1521 #version number gets to a.b.czz then we go to a.b.(c+1)
1522 sub get_next_version()
1523 {
1524         my $thisversion = shift;
1525
1526         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1527
1528         if ($letter eq "zz") {
1529                 my $lastnum = substr($base, -1);
1530                 return substr($base, 0, length($base)-1).(++$lastnum);
1531         }
1532         return $base.get_next_letter($letter);
1533 }
1534
1535 #Given the letters off the end of an OpenSSL version string, calculate what
1536 #the letters for the next release would be.
1537 sub get_next_letter()
1538 {
1539         my $thisletter = shift;
1540         my $baseletter = "";
1541         my $endletter;
1542
1543         if ($thisletter eq "") {
1544                 return "a";
1545         }
1546         if ((length $thisletter) > 1) {
1547                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1548         } else {
1549                 $endletter = $thisletter;
1550         }
1551
1552         if ($endletter eq "z") {
1553                 return $thisletter."a";
1554         } else {
1555                 return $baseletter.(++$endletter);
1556         }
1557 }
1558
1559 #Check if a version is less than or equal to the current version. Its a fatal
1560 #error if not. They must also only differ in letters, or the last number (i.e.
1561 #the first two numbers must be the same)
1562 sub check_version_lte()
1563 {
1564         my ($testversion, $currversion) = @_;
1565         my $lentv;
1566         my $lencv;
1567         my $cvbase;
1568
1569         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1570         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1571
1572         #Die if we can't parse the version numbers or they don't look sane
1573         die "Invalid version number: $testversion and $currversion\n"
1574                 if (!defined($cvnums) || !defined($tvnums)
1575                         || length($cvnums) != 5
1576                         || length($tvnums) != 5);
1577
1578         #If the base versions (without letters) don't match check they only differ
1579         #in the last number
1580         if ($cvnums ne $tvnums) {
1581                 die "Invalid version number: $testversion "
1582                         ."for current version $currversion\n"
1583                         if (substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1584                 return;
1585         }
1586         #If we get here then the base version (i.e. the numbers) are the same - they
1587         #only differ in the letters
1588
1589         $lentv = length $testversion;
1590         $lencv = length $currversion;
1591
1592         #If the testversion has more letters than the current version then it must
1593         #be later (or malformed)
1594         if ($lentv > $lencv) {
1595                 die "Invalid version number: $testversion "
1596                         ."is greater than $currversion\n";
1597         }
1598
1599         #Get the last letter from the current version
1600         my ($cvletter) = $currversion =~ /([a-z])$/;
1601         if (defined $cvletter) {
1602                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1603         } else {
1604                 $cvbase = $currversion;
1605         }
1606         die "Unable to parse version number $currversion" if (!defined $cvbase);
1607         my $tvbase;
1608         my ($tvletter) = $testversion =~ /([a-z])$/;
1609         if (defined $tvletter) {
1610                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1611         } else {
1612                 $tvbase = $testversion;
1613         }
1614         die "Unable to parse version number $testversion" if (!defined $tvbase);
1615
1616         if ($lencv > $lentv) {
1617                 #If current version has more letters than testversion then testversion
1618                 #minus the final letter must be a substring of the current version
1619                 die "Invalid version number $testversion "
1620                         ."is greater than $currversion or is invalid\n"
1621                         if (index($cvbase, $tvbase) != 0);
1622         } else {
1623                 #If both versions have the same number of letters then they must be
1624                 #equal up to the last letter, and the last letter in testversion must
1625                 #be less than or equal to the last letter in current version.
1626                 die "Invalid version number $testversion "
1627                         ."is greater than $currversion\n"
1628                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1629         }
1630 }
1631
1632 sub do_deprecated()
1633 {
1634         my ($decl, $plats, $algs) = @_;
1635         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1636             or die "Bad DEPRECATEDIN: $decl\n";
1637         my $info1 .= "#INFO:";
1638         $info1 .= join(',', @{$plats}) . ":";
1639         my $info2 = $info1;
1640         $info1 .= join(',',@{$algs}, $1) . ";";
1641         $info2 .= join(',',@{$algs}) . ";";
1642         return $info1 . $2 . ";" . $info2;
1643 }