util/mknum.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 my $debug=0;
  57 my $trace=0;
  58 my $verbose=0;
  59
  60 my $crypto_num= catfile($config{sourcedir},"util","libcrypto.num");
  61 my $ssl_num=    catfile($config{sourcedir},"util","libssl.num");
  62 my $libname;
  63
  64 my $do_update = 0;
  65 my $do_rewrite = 1;
  66 my $do_crypto = 0;
  67 my $do_ssl = 0;
  68 my $do_ctest = 0;
  69 my $do_ctestall = 0;
  70 my $do_checkexist = 0;
  71
  72 my $VMS=0;
  73 my $W32=0;
  74 my $NT=0;
  75 my $UNIX=0;
  76 my $linux=0;
  77 my $aix=0;
  78 # Set this to make typesafe STACK definitions appear in DEF
  79 my $safe_stack_def = 0;
  80
  81 my @known_platforms = ( "__FreeBSD__", "PERL5",
  82                         "EXPORT_VAR_AS_FUNCTION", "_WIN32"
  83                         );
  84 my @known_ossl_platforms = ( "UNIX", "VMS", "WIN32", "WINNT", "OS2" );
  85 my @known_algorithms = ( # These are algorithms we know are guarded in relevant
  86                          # header files, but aren't actually disablable.
  87                          # Without these, this script will warn a lot.
  88                          "RSA", "MD5",
  89                          # @disablables comes from configdata.pm
  90                          map { (my $x = uc $_) =~ s|-|_|g; $x; } @disablables,
  91                          # Deprecated functions.  Not really algorithmss, but
  92                          # treated as such here for the sake of simplicity
  93                          "DEPRECATEDIN_0_9_8",
  94                          "DEPRECATEDIN_1_0_0",
  95                          "DEPRECATEDIN_1_1_0",
  96                          "DEPRECATEDIN_1_2_0",
  97                      );
  98
  99 # %disabled comes from configdata.pm
 100 my %disabled_algorithms =
 101     map { (my $x = uc $_) =~ s|-|_|g; $x => 1; } keys %disabled;
 102
 103 my $apiv = sprintf "%x%02x%02x", split(/\./, $config{api});
 104 foreach (@known_algorithms) {
 105         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 106                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 107                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 108         }
 109 }
 110
 111 my $zlib;
 112
 113 foreach (@ARGV, split(/ /, $config{options}))
 114         {
 115         $debug=1 if $_ eq "debug";
 116         $trace=1 if $_ eq "trace";
 117         $verbose=1 if $_ eq "verbose";
 118         $W32=1 if $_ eq "32";
 119         die "win16 not supported" if $_ eq "16";
 120         if($_ eq "NT") {
 121                 $W32 = 1;
 122                 $NT = 1;
 123         } elsif ($_ eq "linux") {
 124                 $linux=1;
 125                 $UNIX=1;
 126         } elsif ($_ eq "aix") {
 127                 $aix=1;
 128                 $UNIX=1;
 129         } elsif ($_ eq "VMS") {
 130                 $VMS=1;
 131         }
 132         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 133                          || $_ eq "enable-zlib-dynamic") {
 134                 $zlib = 1;
 135         }
 136
 137         $do_crypto=1 if $_ eq "libcrypto" || $_ eq "crypto";
 138         $do_ssl=1 if $_ eq "libssl" || $_ eq "ssl";
 139
 140         $do_update=1 if $_ eq "update";
 141         $do_rewrite=1 if $_ eq "rewrite";
 142         $do_checkexist=1 if $_ eq "exist";
 143         }
 144 $libname = $unified_info{sharednames}->{libcrypto} if $do_crypto;
 145 $libname = $unified_info{sharednames}->{libssl} if $do_ssl;
 146
 147 if (!$libname) {
 148         if ($do_ssl) {
 149                 $libname="LIBSSL";
 150         }
 151         if ($do_crypto) {
 152                 $libname="LIBCRYPTO";
 153         }
 154 }
 155
 156 if (!$do_ssl && !$do_crypto)
 157         {
 158         print STDERR "usage: $0 ( ssl | crypto )\n";
 159         exit(1);
 160         }
 161
 162 %ssl_list=&load_numbers($ssl_num);
 163 $max_ssl = $max_num;
 164 %crypto_list=&load_numbers($crypto_num);
 165 $max_crypto = $max_num;
 166
 167 my $ssl="include/openssl/ssl.h";
 168 $ssl.=" include/openssl/sslerr.h";
 169 $ssl.=" include/openssl/tls1.h";
 170 $ssl.=" include/openssl/srtp.h";
 171
 172 # When scanning include/openssl, skip all SSL files and some internal ones.
 173 my %skipthese;
 174 foreach my $f ( split(/\s+/, $ssl) ) {
 175     $skipthese{$f} = 1;
 176 }
 177 $skipthese{'include/openssl/conf_api.h'} = 1;
 178 $skipthese{'include/openssl/ebcdic.h'} = 1;
 179 $skipthese{'include/openssl/opensslconf.h'} = 1;
 180
 181 # We use headers found in include/openssl and include/internal only.
 182 # The latter is needed so libssl.so/.dll/.exe can link properly.
 183 my $crypto ="include/internal/dso.h";
 184 $crypto.=" include/internal/o_dir.h";
 185 $crypto.=" include/internal/o_str.h";
 186 $crypto.=" include/internal/err.h";
 187 $crypto.=" include/internal/sslconf.h";
 188 foreach my $f ( glob(catfile($config{sourcedir},'include/openssl/*.h')) ) {
 189     my $fn = "include/openssl/" . lc(basename($f));
 190     $crypto .= " $fn" if !defined $skipthese{$fn};
 191 }
 192
 193 my $symhacks="include/openssl/symhacks.h";
 194
 195 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 196 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 197
 198 if ($do_update) {
 199
 200 if ($do_ssl == 1) {
 201
 202         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 203         if ($do_rewrite == 1) {
 204                 open(OUT, ">$ssl_num");
 205                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 206         } else {
 207                 open(OUT, ">>$ssl_num");
 208         }
 209         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 210         close OUT;
 211 }
 212
 213 if($do_crypto == 1) {
 214
 215         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 216         if ($do_rewrite == 1) {
 217                 open(OUT, ">$crypto_num");
 218                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 219         } else {
 220                 open(OUT, ">>$crypto_num");
 221         }
 222         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 223         close OUT;
 224 }
 225
 226 } elsif ($do_checkexist) {
 227         &check_existing(*ssl_list, @ssl_symbols)
 228                 if $do_ssl == 1;
 229         &check_existing(*crypto_list, @crypto_symbols)
 230                 if $do_crypto == 1;
 231 } else {
 232         print STDERR "Nothing to do\n";
 233 }
 234
 235
 236 sub do_defs
 237 {
 238         my($name,$files,$symhacksfile)=@_;
 239         my $file;
 240         my @ret;
 241         my %syms;
 242         my %platform;           # For anything undefined, we assume ""
 243         my %kind;               # For anything undefined, we assume "FUNCTION"
 244         my %algorithm;          # For anything undefined, we assume ""
 245         my %variant;
 246         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 247                                 # is the same name as the original.
 248         my $cpp;
 249         my %unknown_algorithms = ();
 250         my $parens = 0;
 251
 252         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 253                 {
 254                 my $fn = catfile($config{sourcedir},$file);
 255                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 256                 print STDERR "TRACE: start reading $fn\n" if $trace;
 257                 open(IN,"<$fn") || die "Can't open $fn, $!,";
 258                 my $line = "", my $def= "";
 259                 my %tag = (
 260                         (map { $_ => 0 } @known_platforms),
 261                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 262                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 263                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 264                         (grep /^DEPRECATED_/, @known_algorithms),
 265                         NOPROTO         => 0,
 266                         PERL5           => 0,
 267                         _WINDLL         => 0,
 268                         CONST_STRICT    => 0,
 269                         TRUE            => 1,
 270                         ZLIB            => 0,
 271                 );
 272                 my $symhacking = $file eq $symhacksfile;
 273                 my @current_platforms = ();
 274                 my @current_algorithms = ();
 275
 276                 # params: symbol, alias, platforms, kind
 277                 # The reason to put this subroutine in a variable is that
 278                 # it will otherwise create it's own, unshared, version of
 279                 # %tag and %variant...
 280                 my $make_variant = sub
 281                 {
 282                         my ($s, $a, $p, $k) = @_;
 283                         my ($a1, $a2);
 284
 285                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 286                         if (defined($p))
 287                         {
 288                                 $a1 = join(",",$p,
 289                                            grep(!/^$/,
 290                                                 map { $tag{$_} == 1 ? $_ : "" }
 291                                                 @known_platforms));
 292                         }
 293                         else
 294                         {
 295                                 $a1 = join(",",
 296                                            grep(!/^$/,
 297                                                 map { $tag{$_} == 1 ? $_ : "" }
 298                                                 @known_platforms));
 299                         }
 300                         $a2 = join(",",
 301                                    grep(!/^$/,
 302                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 303                                         @known_ossl_platforms));
 304                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 305                         if ($a1 eq "") { $a1 = $a2; }
 306                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 307                         if ($a eq $s)
 308                         {
 309                                 if (!defined($variant_cnt{$s}))
 310                                 {
 311                                         $variant_cnt{$s} = 0;
 312                                 }
 313                                 $variant_cnt{$s}++;
 314                                 $a .= "{$variant_cnt{$s}}";
 315                         }
 316                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 317                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 318                         if (!grep(/^$togrep$/,
 319                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 320                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 321                                 $variant{$s} .= $toadd;
 322                         }
 323                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 324                 };
 325
 326                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 327                 while(<IN>) {
 328                         s|\R$||; # Better chomp
 329                         if($parens > 0) {
 330                                 #Inside a DEPRECATEDIN
 331                                 $stored_multiline .= $_;
 332                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 333                                 $parens = count_parens($stored_multiline);
 334                                 if ($parens == 0) {
 335                                         $def .= do_deprecated($stored_multiline,
 336                                                         \@current_platforms,
 337                                                         \@current_algorithms);
 338                                 }
 339                                 next;
 340                         }
 341                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 342                                 {
 343                                 undef @tag;
 344                                 last;
 345                                 }
 346                         if ($line ne '') {
 347                                 $_ = $line . $_;
 348                                 $line = '';
 349                         }
 350
 351                         if (/\\$/) {
 352                                 $line = $`; # keep what was before the backslash
 353                                 next;
 354                         }
 355
 356                         if(/\/\*/) {
 357                                 if (not /\*\//) {       # multi-line comment...
 358                                         $line = $_;     # ... just accumulate
 359                                         next;
 360                                 } else {
 361                                         s/\/\*.*?\*\///gs;# wipe it
 362                                 }
 363                         }
 364
 365                         if ($cpp) {
 366                                 $cpp++ if /^#\s*if/;
 367                                 $cpp-- if /^#\s*endif/;
 368                                 next;
 369                         }
 370                         if (/^#.*ifdef.*cplusplus/) {
 371                                 $cpp = 1;
 372                                 next;
 373                         }
 374
 375                         s/{[^{}]*}//gs;                      # ignore {} blocks
 376                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 377                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 378                         if (/^\#\s*if\s+OPENSSL_API_COMPAT\s*(\S)\s*(0x[0-9a-fA-F]{8})L\s*$/) {
 379                                 my $op = $1;
 380                                 my $v = hex($2);
 381                                 if ($op ne '<' && $op ne '>=') {
 382                                     die "$file unacceptable operator $op: $_\n";
 383                                 }
 384                                 my ($one, $major, $minor) =
 385                                     ( ($v >> 28) & 0xf,
 386                                       ($v >> 20) & 0xff,
 387                                       ($v >> 12) & 0xff );
 388                                 my $t = "DEPRECATEDIN_${one}_${major}_${minor}";
 389                                 push(@tag,"-");
 390                                 push(@tag,$t);
 391                                 $tag{$t}=($op eq '<' ? 1 : -1);
 392                                 print STDERR "DEBUG: $file: found tag $t = $tag{$t}\n" if $debug;
 393                         } elsif (/^\#\s*ifndef\s+(.*)/) {
 394                                 push(@tag,"-");
 395                                 push(@tag,$1);
 396                                 $tag{$1}=-1;
 397                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 398                         } elsif (/^\#\s*if\s+!defined\s*\(([^\)]+)\)/) {
 399                                 push(@tag,"-");
 400                                 if (/^\#\s*if\s+(!defined\s*\(([^\)]+)\)(\s+\&\&\s+!defined\s*\(([^\)]+)\))*)$/) {
 401                                         my $tmp_1 = $1;
 402                                         my $tmp_;
 403                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 404                                                 $tmp_ =~ /!defined\s*\(([^\)]+)\)/;
 405                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 406                                                 push(@tag,$1);
 407                                                 $tag{$1}=-1;
 408                                         }
 409                                 } else {
 410                                         print STDERR "Warning: $file: taking only '!defined($1)' of complicated expression: $_" if $verbose; # because it is O...
 411                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 412                                         push(@tag,$1);
 413                                         $tag{$1}=-1;
 414                                 }
 415                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 416                                 push(@tag,"-");
 417                                 push(@tag,$1);
 418                                 $tag{$1}=1;
 419                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 420                         } elsif (/^\#\s*if\s+defined\s*\(([^\)]+)\)/) {
 421                                 push(@tag,"-");
 422                                 if (/^\#\s*if\s+(defined\s*\(([^\)]+)\)(\s+\|\|\s+defined\s*\(([^\)]+)\))*)$/) {
 423                                         my $tmp_1 = $1;
 424                                         my $tmp_;
 425                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 426                                                 $tmp_ =~ /defined\s*\(([^\)]+)\)/;
 427                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 428                                                 push(@tag,$1);
 429                                                 $tag{$1}=1;
 430                                         }
 431                                 } else {
 432                                         print STDERR "Warning: $file: taking only 'defined($1)' of complicated expression: $_\n" if $verbose; # because it is O...
 433                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 434                                         push(@tag,$1);
 435                                         $tag{$1}=1;
 436                                 }
 437                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 438                                 my $tag_i = $#tag;
 439                                 while($tag[$tag_i] ne "-") {
 440                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 441                                                 $tag{$tag[$tag_i]}=2;
 442                                                 print STDERR "DEBUG: $file: changed tag $1 = 2\n" if $debug;
 443                                         }
 444                                         $tag_i--;
 445                                 }
 446                         } elsif (/^\#\s*endif/) {
 447                                 my $tag_i = $#tag;
 448                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 449                                         my $t=$tag[$tag_i];
 450                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 451                                         if ($tag{$t}==2) {
 452                                                 $tag{$t}=-1;
 453                                         } else {
 454                                                 $tag{$t}=0;
 455                                         }
 456                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 457                                         pop(@tag);
 458                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 459                                                 $t=$1;
 460                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 461                                                 $t=$1;
 462                                         } else {
 463                                                 $t="";
 464                                         }
 465                                         if ($t ne ""
 466                                             && !grep(/^$t$/, @known_algorithms)) {
 467                                                 $unknown_algorithms{$t} = 1;
 468                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 469                                         }
 470                                         $tag_i--;
 471                                 }
 472                                 pop(@tag);
 473                         } elsif (/^\#\s*else/) {
 474                                 my $tag_i = $#tag;
 475                                 die "$file unmatched else\n" if $tag_i < 0;
 476                                 while($tag[$tag_i] ne "-") {
 477                                         my $t=$tag[$tag_i];
 478                                         $tag{$t}= -$tag{$t};
 479                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 480                                         $tag_i--;
 481                                 }
 482                         } elsif (/^\#\s*if\s+1/) {
 483                                 push(@tag,"-");
 484                                 # Dummy tag
 485                                 push(@tag,"TRUE");
 486                                 $tag{"TRUE"}=1;
 487                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 488                         } elsif (/^\#\s*if\s+0/) {
 489                                 push(@tag,"-");
 490                                 # Dummy tag
 491                                 push(@tag,"TRUE");
 492                                 $tag{"TRUE"}=-1;
 493                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 494                         } elsif (/^\#\s*if\s+/) {
 495                                 #Some other unrecognized "if" style
 496                                 push(@tag,"-");
 497                                 print STDERR "Warning: $file: ignoring unrecognized expression: $_\n" if $verbose; # because it is O...
 498                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 499                                  && $symhacking && $tag{'TRUE'} != -1) {
 500                                 # This is for aliasing.  When we find an alias,
 501                                 # we have to invert
 502                                 &$make_variant($1,$2);
 503                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 504                         }
 505                         if (/^\#/) {
 506                                 @current_platforms =
 507                                     grep(!/^$/,
 508                                          map { $tag{$_} == 1 ? $_ :
 509                                                    $tag{$_} == -1 ? "!".$_  : "" }
 510                                          @known_platforms);
 511                                 push @current_platforms
 512                                     , grep(!/^$/,
 513                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 514                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 515                                            @known_ossl_platforms);
 516                                 @current_algorithms = ();
 517                                 @current_algorithms =
 518                                     grep(!/^$/,
 519                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 520                                          @known_algorithms);
 521                                 push @current_algorithms
 522                                     , grep(!/^$/,
 523                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 524                                          @known_algorithms);
 525                                 push @current_algorithms,
 526                                     grep { /^DEPRECATEDIN_/ && $tag{$_} == 1 }
 527                                     @known_algorithms;
 528                                 push @current_algorithms, "ZLIB"
 529                                     if $tag{ZLIB} == 1;
 530                                 $def .=
 531                                     "#INFO:"
 532                                         .join(',',@current_platforms).":"
 533                                             .join(',',@current_algorithms).";";
 534                                 next;
 535                         }
 536                         if ($tag{'TRUE'} != -1) {
 537                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 538                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 539                                         next;
 540                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 541                                         $def .= "int d2i_$3(void);";
 542                                         $def .= "int i2d_$3(void);";
 543                                         # Variant for platforms that do not
 544                                         # have to access global variables
 545                                         # in shared libraries through functions
 546                                         $def .=
 547                                             "#INFO:"
 548                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 549                                                     .join(',',@current_algorithms).";";
 550                                         $def .= "OPENSSL_EXTERN int $2_it;";
 551                                         $def .=
 552                                             "#INFO:"
 553                                                 .join(',',@current_platforms).":"
 554                                                     .join(',',@current_algorithms).";";
 555                                         # Variant for platforms that have to
 556                                         # access global variables in shared
 557                                         # libraries through functions
 558                                         &$make_variant("$2_it","$2_it",
 559                                                       "EXPORT_VAR_AS_FUNCTION",
 560                                                       "FUNCTION");
 561                                         next;
 562                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 563                                         $def .= "int d2i_$3(void);";
 564                                         $def .= "int i2d_$3(void);";
 565                                         $def .= "int $3_free(void);";
 566                                         $def .= "int $3_new(void);";
 567                                         # Variant for platforms that do not
 568                                         # have to access global variables
 569                                         # in shared libraries through functions
 570                                         $def .=
 571                                             "#INFO:"
 572                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 573                                                     .join(',',@current_algorithms).";";
 574                                         $def .= "OPENSSL_EXTERN int $2_it;";
 575                                         $def .=
 576                                             "#INFO:"
 577                                                 .join(',',@current_platforms).":"
 578                                                     .join(',',@current_algorithms).";";
 579                                         # Variant for platforms that have to
 580                                         # access global variables in shared
 581                                         # libraries through functions
 582                                         &$make_variant("$2_it","$2_it",
 583                                                       "EXPORT_VAR_AS_FUNCTION",
 584                                                       "FUNCTION");
 585                                         next;
 586                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 587                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 588                                         $def .= "int d2i_$1(void);";
 589                                         $def .= "int i2d_$1(void);";
 590                                         $def .= "int $1_free(void);";
 591                                         $def .= "int $1_new(void);";
 592                                         # Variant for platforms that do not
 593                                         # have to access global variables
 594                                         # in shared libraries through functions
 595                                         $def .=
 596                                             "#INFO:"
 597                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 598                                                     .join(',',@current_algorithms).";";
 599                                         $def .= "OPENSSL_EXTERN int $1_it;";
 600                                         $def .=
 601                                             "#INFO:"
 602                                                 .join(',',@current_platforms).":"
 603                                                     .join(',',@current_algorithms).";";
 604                                         # Variant for platforms that have to
 605                                         # access global variables in shared
 606                                         # libraries through functions
 607                                         &$make_variant("$1_it","$1_it",
 608                                                       "EXPORT_VAR_AS_FUNCTION",
 609                                                       "FUNCTION");
 610                                         next;
 611                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 612                                         $def .= "int d2i_$2(void);";
 613                                         $def .= "int i2d_$2(void);";
 614                                         # Variant for platforms that do not
 615                                         # have to access global variables
 616                                         # in shared libraries through functions
 617                                         $def .=
 618                                             "#INFO:"
 619                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 620                                                     .join(',',@current_algorithms).";";
 621                                         $def .= "OPENSSL_EXTERN int $2_it;";
 622                                         $def .=
 623                                             "#INFO:"
 624                                                 .join(',',@current_platforms).":"
 625                                                     .join(',',@current_algorithms).";";
 626                                         # Variant for platforms that have to
 627                                         # access global variables in shared
 628                                         # libraries through functions
 629                                         &$make_variant("$2_it","$2_it",
 630                                                       "EXPORT_VAR_AS_FUNCTION",
 631                                                       "FUNCTION");
 632                                         next;
 633                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 634                                         $def .= "int $1_free(void);";
 635                                         $def .= "int $1_new(void);";
 636                                         next;
 637                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 638                                         $def .= "int d2i_$2(void);";
 639                                         $def .= "int i2d_$2(void);";
 640                                         $def .= "int $2_free(void);";
 641                                         $def .= "int $2_new(void);";
 642                                         # Variant for platforms that do not
 643                                         # have to access global variables
 644                                         # in shared libraries through functions
 645                                         $def .=
 646                                             "#INFO:"
 647                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 648                                                     .join(',',@current_algorithms).";";
 649                                         $def .= "OPENSSL_EXTERN int $2_it;";
 650                                         $def .=
 651                                             "#INFO:"
 652                                                 .join(',',@current_platforms).":"
 653                                                     .join(',',@current_algorithms).";";
 654                                         # Variant for platforms that have to
 655                                         # access global variables in shared
 656                                         # libraries through functions
 657                                         &$make_variant("$2_it","$2_it",
 658                                                       "EXPORT_VAR_AS_FUNCTION",
 659                                                       "FUNCTION");
 660                                         next;
 661                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 662                                         # Variant for platforms that do not
 663                                         # have to access global variables
 664                                         # in shared libraries through functions
 665                                         $def .=
 666                                             "#INFO:"
 667                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 668                                                     .join(',',@current_algorithms).";";
 669                                         $def .= "OPENSSL_EXTERN int $1_it;";
 670                                         $def .=
 671                                             "#INFO:"
 672                                                 .join(',',@current_platforms).":"
 673                                                     .join(',',@current_algorithms).";";
 674                                         # Variant for platforms that have to
 675                                         # access global variables in shared
 676                                         # libraries through functions
 677                                         &$make_variant("$1_it","$1_it",
 678                                                       "EXPORT_VAR_AS_FUNCTION",
 679                                                       "FUNCTION");
 680                                         next;
 681                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 682                                         $def .= "int i2d_$1_NDEF(void);";
 683                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 684                                         next;
 685                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 686                                         $def .= "int $1_print_ctx(void);";
 687                                         next;
 688                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 689                                         $def .= "int $2_print_ctx(void);";
 690                                         next;
 691                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 692                                         next;
 693                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 694                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 695                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 696                                         $def .=
 697                                             "#INFO:"
 698                                                 .join(',',@current_platforms).":"
 699                                                     .join(',',"STDIO",@current_algorithms).";";
 700                                         $def .= "int PEM_read_$1(void);";
 701                                         $def .= "int PEM_write_$1(void);";
 702                                         $def .=
 703                                             "#INFO:"
 704                                                 .join(',',@current_platforms).":"
 705                                                     .join(',',@current_algorithms).";";
 706                                         # Things that are everywhere
 707                                         $def .= "int PEM_read_bio_$1(void);";
 708                                         $def .= "int PEM_write_bio_$1(void);";
 709                                         next;
 710                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 711                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 712                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 713                                         $def .=
 714                                             "#INFO:"
 715                                                 .join(',',@current_platforms).":"
 716                                                     .join(',',"STDIO",@current_algorithms).";";
 717                                         $def .= "int PEM_write_$1(void);";
 718                                         $def .=
 719                                             "#INFO:"
 720                                                 .join(',',@current_platforms).":"
 721                                                     .join(',',@current_algorithms).";";
 722                                         # Things that are everywhere
 723                                         $def .= "int PEM_write_bio_$1(void);";
 724                                         next;
 725                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 726                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 727                                         $def .=
 728                                             "#INFO:"
 729                                                 .join(',',@current_platforms).":"
 730                                                     .join(',',"STDIO",@current_algorithms).";";
 731                                         $def .= "int PEM_read_$1(void);";
 732                                         $def .=
 733                                             "#INFO:"
 734                                                 .join(',',@current_platforms).":"
 735                                                     .join(',',"STDIO",@current_algorithms).";";
 736                                         # Things that are everywhere
 737                                         $def .= "int PEM_read_bio_$1(void);";
 738                                         next;
 739                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 740                                         # Variant for platforms that do not
 741                                         # have to access global variables
 742                                         # in shared libraries through functions
 743                                         $def .=
 744                                             "#INFO:"
 745                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 746                                                     .join(',',@current_algorithms).";";
 747                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 748                                         $def .=
 749                                             "#INFO:"
 750                                                 .join(',',@current_platforms).":"
 751                                                     .join(',',@current_algorithms).";";
 752                                         # Variant for platforms that have to
 753                                         # access global variables in shared
 754                                         # libraries through functions
 755                                         &$make_variant("_shadow_$2","_shadow_$2",
 756                                                       "EXPORT_VAR_AS_FUNCTION",
 757                                                       "FUNCTION");
 758                                 } elsif (/^\s*DEPRECATEDIN/) {
 759                                         $parens = count_parens($_);
 760                                         if ($parens == 0) {
 761                                                 $def .= do_deprecated($_,
 762                                                         \@current_platforms,
 763                                                         \@current_algorithms);
 764                                         } else {
 765                                                 $stored_multiline = $_;
 766                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 767                                                 next;
 768                                         }
 769                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 770                                         if (/\{|\/\*|\([^\)]*$/) {
 771                                                 $line = $_;
 772                                         } else {
 773                                                 $def .= $_;
 774                                         }
 775                                 }
 776                         }
 777                 }
 778                 close(IN);
 779                 die "$file: Unmatched tags\n" if $#tag >= 0;
 780
 781                 my $algs;
 782                 my $plays;
 783
 784                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 785                 foreach (split /;/, $def) {
 786                         my $s; my $k = "FUNCTION"; my $p; my $a;
 787                         s/^[\n\s]*//g;
 788                         s/[\n\s]*$//g;
 789                         next if(/\#undef/);
 790                         next if(/typedef\W/);
 791                         next if(/\#define/);
 792
 793                         print STDERR "TRACE: processing $_\n" if $trace && !/^\#INFO:/;
 794                         # Reduce argument lists to empty ()
 795                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 796                         my $nsubst = 1; # prevent infinite loop, e.g., on  int fn()
 797                         while($nsubst && /\(.*\)/s) {
 798                                 $nsubst = s/\([^\(\)]+\)/\{\}/gs;
 799                                 $nsubst+= s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;  #(*f{}) -> f
 800                         }
 801                         # pretend as we didn't use curly braces: {} -> ()
 802                         s/\{\}/\(\)/gs;
 803
 804                         s/STACK_OF\(\)/void/gs;
 805                         s/LHASH_OF\(\)/void/gs;
 806
 807                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 808                         if (/^\#INFO:([^:]*):(.*)$/) {
 809                                 $plats = $1;
 810                                 $algs = $2;
 811                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 812                                 next;
 813                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 814                                 $s = $1;
 815                                 $k = "VARIABLE";
 816                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 817                         } elsif (/TYPEDEF_\w+_OF/s) {
 818                                 next;
 819                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 820                                 $s = $1;                # a function name!
 821                                 print STDERR "DEBUG: found function $s\n" if $debug;
 822                         } elsif (/\(/ and not (/=/)) {
 823                                 print STDERR "File $file: cannot parse: $_;\n";
 824                                 next;
 825                         } else {
 826                                 next;
 827                         }
 828
 829                         $syms{$s} = 1;
 830                         $kind{$s} = $k;
 831
 832                         $p = $plats;
 833                         $a = $algs;
 834
 835                         $platform{$s} =
 836                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 837                         $algorithm{$s} .= ','.$a;
 838
 839                         if (defined($variant{$s})) {
 840                                 foreach $v (split /;/,$variant{$s}) {
 841                                         (my $r, my $p, my $k) = split(/:/,$v);
 842                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 843                                         $syms{$r} = 1;
 844                                         if (!defined($k)) { $k = $kind{$s}; }
 845                                         $kind{$r} = $k."(".$s.")";
 846                                         $algorithm{$r} = $algorithm{$s};
 847                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 848                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 849                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 850                                 }
 851                         }
 852                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 853                 }
 854         }
 855
 856         # Prune the returned symbols
 857
 858         delete $syms{"bn_dump1"};
 859         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 860
 861         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 862         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 863         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 864         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 865
 866         # Info we know about
 867
 868         push @ret, map { $_."\\".&info_string($_,"EXIST",
 869                                               $platform{$_},
 870                                               $kind{$_},
 871                                               $algorithm{$_}) } keys %syms;
 872
 873         if (keys %unknown_algorithms) {
 874                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 875                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 876         }
 877         return(@ret);
 878 }
 879
 880 # Param: string of comma-separated platform-specs.
 881 sub reduce_platforms
 882 {
 883         my ($platforms) = @_;
 884         my $pl = defined($platforms) ? $platforms : "";
 885         my %p = map { $_ => 0 } split /,/, $pl;
 886         my $ret;
 887
 888         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 889             if $debug;
 890         # We do this, because if there's code like the following, it really
 891         # means the function exists in all cases and should therefore be
 892         # everywhere.  By increasing and decreasing, we may attain 0:
 893         #
 894         # ifndef WIN16
 895         #    int foo();
 896         # else
 897         #    int _fat foo();
 898         # endif
 899         foreach $platform (split /,/, $pl) {
 900                 if ($platform =~ /^!(.*)$/) {
 901                         $p{$1}--;
 902                 } else {
 903                         $p{$platform}++;
 904                 }
 905         }
 906         foreach $platform (keys %p) {
 907                 if ($p{$platform} == 0) { delete $p{$platform}; }
 908         }
 909
 910         delete $p{""};
 911
 912         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 913         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 914             if $debug;
 915         return $ret;
 916 }
 917
 918 sub info_string
 919 {
 920         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 921
 922         my %a = defined($algorithms) ?
 923             map { $_ => 1 } split /,/, $algorithms : ();
 924         my $k = defined($kind) ? $kind : "FUNCTION";
 925         my $ret;
 926         my $p = &reduce_platforms($platforms);
 927
 928         delete $a{""};
 929
 930         $ret = $exist;
 931         $ret .= ":".$p;
 932         $ret .= ":".$k;
 933         $ret .= ":".join(',',sort keys %a);
 934         return $ret;
 935 }
 936
 937 sub maybe_add_info
 938 {
 939         (my $name, *nums, my @symbols) = @_;
 940         my $sym;
 941         my $new_info = 0;
 942         my %syms=();
 943
 944         foreach $sym (@symbols) {
 945                 (my $s, my $i) = split /\\/, $sym;
 946                 if (defined($nums{$s})) {
 947                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
 948                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
 949                         if (!defined($dummy) || $i ne $dummy) {
 950                                 $nums{$s} = $n."\\".$vers."\\".$i;
 951                                 $new_info++;
 952                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
 953                         }
 954                 }
 955                 $syms{$s} = 1;
 956         }
 957
 958         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
 959         foreach $sym (@s) {
 960                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
 961                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
 962                         $new_info++;
 963                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
 964                 }
 965         }
 966         if ($new_info) {
 967                 print STDERR "$name: $new_info old symbols have updated info\n";
 968                 if (!$do_rewrite) {
 969                         print STDERR "You should do a rewrite to fix this.\n";
 970                 }
 971         } else {
 972         }
 973 }
 974
 975 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
 976 sub is_valid
 977 {
 978         my ($keywords_txt,$platforms) = @_;
 979         my (@keywords) = split /,/,$keywords_txt;
 980         my ($falsesum, $truesum) = (0, 1);
 981
 982         # Param: one keyword
 983         sub recognise
 984         {
 985                 my ($keyword,$platforms) = @_;
 986
 987                 if ($platforms) {
 988                         # platforms
 989                         if ($keyword eq "UNIX" && $UNIX) { return 1; }
 990                         if ($keyword eq "VMS" && $VMS) { return 1; }
 991                         if ($keyword eq "WIN32" && $W32) { return 1; }
 992                         if ($keyword eq "_WIN32" && $W32) { return 1; }
 993                         if ($keyword eq "WINNT" && $NT) { return 1; }
 994                         # Special platforms:
 995                         # EXPORT_VAR_AS_FUNCTION means that global variables
 996                         # will be represented as functions.
 997                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && $W32) {
 998                                 return 1;
 999                         }
1000                         return 0;
1001                 } else {
1002                         # algorithms
1003                         if ($disabled_algorithms{$keyword}) { return 0;}
1004                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1005                         # Nothing recognise as true
1006                         return 1;
1007                 }
1008         }
1009
1010         foreach $k (@keywords) {
1011                 if ($k =~ /^!(.*)$/) {
1012                         $falsesum += &recognise($1,$platforms);
1013                 } else {
1014                         $truesum *= &recognise($k,$platforms);
1015                 }
1016         }
1017         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1018         return (!$falsesum) && $truesum;
1019 }
1020
1021 sub load_numbers
1022 {
1023         my($name)=@_;
1024         my(@a,%ret);
1025         my $prevversion;
1026
1027         $max_num = 0;
1028         $num_noinfo = 0;
1029         $prev = "";
1030         $prev_cnt = 0;
1031
1032         my ($baseversion, $currversion) = get_openssl_version();
1033
1034         open(IN,"<$name") || die "unable to open $name:$!\n";
1035         while (<IN>) {
1036                 s|\R$||;        # Better chomp
1037                 s/#.*$//;
1038                 next if /^\s*$/;
1039                 @a=split;
1040                 if (defined $ret{$a[0]}) {
1041                         # This is actually perfectly OK
1042                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1043                 }
1044                 if ($max_num > $a[1]) {
1045                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1046                 }
1047                 elsif ($max_num == $a[1]) {
1048                         # This is actually perfectly OK
1049                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1050                         if ($a[0] eq $prev) {
1051                                 $prev_cnt++;
1052                                 $a[0] .= "{$prev_cnt}";
1053                         }
1054                 }
1055                 else {
1056                         $prev_cnt = 0;
1057                 }
1058                 if ($#a < 2) {
1059                         # Existence will be proven later, in do_defs
1060                         $ret{$a[0]}=$a[1];
1061                         $num_noinfo++;
1062                 } else {
1063                         #Sanity check the version number
1064                         if (defined $prevversion) {
1065                                 check_version_lte($prevversion, $a[2]);
1066                         }
1067                         check_version_lte($a[2], $currversion);
1068                         $prevversion = $a[2];
1069                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1070                 }
1071                 $max_num = $a[1] if $a[1] > $max_num;
1072                 $prev=$a[0];
1073         }
1074         if ($num_noinfo) {
1075                 print STDERR "Warning: $num_noinfo symbols were without info." if $verbose || !$do_rewrite;
1076                 if ($do_rewrite) {
1077                         printf STDERR "  The rewrite will fix this.\n" if $verbose;
1078                 } else {
1079                         printf STDERR "  You should do a rewrite to fix this.\n";
1080                 }
1081         }
1082         close(IN);
1083         return(%ret);
1084 }
1085
1086 sub parse_number
1087 {
1088         (my $str, my $what) = @_;
1089         (my $n, my $v, my $i) = split(/\\/,$str);
1090         if ($what eq "n") {
1091                 return $n;
1092         } else {
1093                 return $i;
1094         }
1095 }
1096
1097 sub rewrite_numbers
1098 {
1099         (*OUT,$name,*nums,@symbols)=@_;
1100         my $thing;
1101
1102         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1103         my $r; my %r; my %rsyms;
1104         foreach $r (@r) {
1105                 (my $s, my $i) = split /\\/, $r;
1106                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1107                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1108                 $r{$a} = $s."\\".$i;
1109                 $rsyms{$s} = 1;
1110         }
1111
1112         my %syms = ();
1113         foreach $_ (@symbols) {
1114                 (my $n, my $i) = split /\\/;
1115                 $syms{$n} = 1;
1116         }
1117
1118         my @s=sort {
1119             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1120             || $a cmp $b
1121         } keys %nums;
1122         foreach $sym (@s) {
1123                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1124                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1125                 next if defined($rsyms{$sym});
1126                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1127                 $i="NOEXIST::FUNCTION:"
1128                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1129                 my $s2 = $sym;
1130                 $s2 =~ s/\{[0-9]+\}$//;
1131                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1132                 if (exists $r{$sym}) {
1133                         (my $s, $i) = split /\\/,$r{$sym};
1134                         my $s2 = $s;
1135                         $s2 =~ s/\{[0-9]+\}$//;
1136                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1137                 }
1138         }
1139 }
1140
1141 sub update_numbers
1142 {
1143         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1144         my $new_syms = 0;
1145         my $basevers;
1146         my $vers;
1147
1148         ($basevers, $vers) = get_openssl_version();
1149
1150         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1151         my $r; my %r; my %rsyms;
1152         foreach $r (@r) {
1153                 (my $s, my $i) = split /\\/, $r;
1154                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1155                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1156                 $r{$a} = $s."\\".$i;
1157                 $rsyms{$s} = 1;
1158         }
1159
1160         foreach $sym (@symbols) {
1161                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1162                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1163                 next if defined($rsyms{$sym});
1164                 die "ERROR: Symbol $sym had no info attached to it."
1165                     if $i eq "";
1166                 if (!exists $nums{$s}) {
1167                         $new_syms++;
1168                         my $s2 = $s;
1169                         $s2 =~ s/\{[0-9]+\}$//;
1170                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1171                         if (exists $r{$s}) {
1172                                 ($s, $i) = split /\\/,$r{$s};
1173                                 $s =~ s/\{[0-9]+\}$//;
1174                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1175                         }
1176                 }
1177         }
1178         if($new_syms) {
1179                 print STDERR "$name: Added $new_syms new symbols\n";
1180         } else {
1181                 print STDERR "$name: No new symbols added\n";
1182         }
1183 }
1184
1185 sub check_existing
1186 {
1187         (*nums, my @symbols)=@_;
1188         my %existing; my @remaining;
1189         @remaining=();
1190         foreach $sym (@symbols) {
1191                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1192                 $existing{$s}=1;
1193         }
1194         foreach $sym (keys %nums) {
1195                 if (!exists $existing{$sym}) {
1196                         push @remaining, $sym;
1197                 }
1198         }
1199         if(@remaining) {
1200                 print STDERR "The following symbols do not seem to exist:\n";
1201                 foreach $sym (@remaining) {
1202                         print STDERR "\t",$sym,"\n";
1203                 }
1204         }
1205 }
1206
1207 sub count_parens
1208 {
1209         my $line = shift(@_);
1210
1211         my $open = $line =~ tr/\(//;
1212         my $close = $line =~ tr/\)//;
1213
1214         return $open - $close;
1215 }
1216
1217 #Parse opensslv.h to get the current version number. Also work out the base
1218 #version, i.e. the lowest version number that is binary compatible with this
1219 #version
1220 sub get_openssl_version()
1221 {
1222         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1223         open (IN, "$fn") || die "Can't open opensslv.h";
1224
1225         while(<IN>) {
1226                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1227                         my $suffix = $2;
1228                         (my $baseversion = $1) =~ s/\./_/g;
1229                         close IN;
1230                         return ($baseversion."0", $baseversion.$suffix);
1231                 }
1232         }
1233         die "Can't find OpenSSL version number\n";
1234 }
1235
1236 #Given an OpenSSL version number, calculate the next version number. If the
1237 #version number gets to a.b.czz then we go to a.b.(c+1)
1238 sub get_next_version()
1239 {
1240         my $thisversion = shift;
1241
1242         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1243
1244         if ($letter eq "zz") {
1245                 my $lastnum = substr($base, -1);
1246                 return substr($base, 0, length($base)-1).(++$lastnum);
1247         }
1248         return $base.get_next_letter($letter);
1249 }
1250
1251 #Given the letters off the end of an OpenSSL version string, calculate what
1252 #the letters for the next release would be.
1253 sub get_next_letter()
1254 {
1255         my $thisletter = shift;
1256         my $baseletter = "";
1257         my $endletter;
1258
1259         if ($thisletter eq "") {
1260                 return "a";
1261         }
1262         if ((length $thisletter) > 1) {
1263                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1264         } else {
1265                 $endletter = $thisletter;
1266         }
1267
1268         if ($endletter eq "z") {
1269                 return $thisletter."a";
1270         } else {
1271                 return $baseletter.(++$endletter);
1272         }
1273 }
1274
1275 #Check if a version is less than or equal to the current version. Its a fatal
1276 #error if not. They must also only differ in letters, or the last number (i.e.
1277 #the first two numbers must be the same)
1278 sub check_version_lte()
1279 {
1280         my ($testversion, $currversion) = @_;
1281         my $lentv;
1282         my $lencv;
1283         my $cvbase;
1284
1285         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1286         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1287
1288         #Die if we can't parse the version numbers or they don't look sane
1289         die "Invalid version number: $testversion and $currversion\n"
1290                 if (!defined($cvnums) || !defined($tvnums)
1291                         || length($cvnums) != 5
1292                         || length($tvnums) != 5);
1293
1294         #If the base versions (without letters) don't match check they only differ
1295         #in the last number
1296         if ($cvnums ne $tvnums) {
1297                 die "Invalid version number: $testversion "
1298                         ."for current version $currversion\n"
1299                         if (substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1300                 return;
1301         }
1302         #If we get here then the base version (i.e. the numbers) are the same - they
1303         #only differ in the letters
1304
1305         $lentv = length $testversion;
1306         $lencv = length $currversion;
1307
1308         #If the testversion has more letters than the current version then it must
1309         #be later (or malformed)
1310         if ($lentv > $lencv) {
1311                 die "Invalid version number: $testversion "
1312                         ."is greater than $currversion\n";
1313         }
1314
1315         #Get the last letter from the current version
1316         my ($cvletter) = $currversion =~ /([a-z])$/;
1317         if (defined $cvletter) {
1318                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1319         } else {
1320                 $cvbase = $currversion;
1321         }
1322         die "Unable to parse version number $currversion" if (!defined $cvbase);
1323         my $tvbase;
1324         my ($tvletter) = $testversion =~ /([a-z])$/;
1325         if (defined $tvletter) {
1326                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1327         } else {
1328                 $tvbase = $testversion;
1329         }
1330         die "Unable to parse version number $testversion" if (!defined $tvbase);
1331
1332         if ($lencv > $lentv) {
1333                 #If current version has more letters than testversion then testversion
1334                 #minus the final letter must be a substring of the current version
1335                 die "Invalid version number $testversion "
1336                         ."is greater than $currversion or is invalid\n"
1337                         if (index($cvbase, $tvbase) != 0);
1338         } else {
1339                 #If both versions have the same number of letters then they must be
1340                 #equal up to the last letter, and the last letter in testversion must
1341                 #be less than or equal to the last letter in current version.
1342                 die "Invalid version number $testversion "
1343                         ."is greater than $currversion\n"
1344                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1345         }
1346 }
1347
1348 sub do_deprecated()
1349 {
1350         my ($decl, $plats, $algs) = @_;
1351         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1352             or die "Bad DEPRECATEDIN: $decl\n";
1353         my $info1 .= "#INFO:";
1354         $info1 .= join(',', @{$plats}) . ":";
1355         my $info2 = $info1;
1356         $info1 .= join(',',@{$algs}, $1) . ";";
1357         $info2 .= join(',',@{$algs}) . ";";
1358         return $info1 . $2 . ";" . $info2;
1359 }