util/mkdef.pl

   1 #! /usr/bin/env perl
   2 # Copyright 1995-2017 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
  58 my $crypto_num= catfile($config{sourcedir},"util","libcrypto.num");
  59 my $ssl_num=    catfile($config{sourcedir},"util","libssl.num");
  60 my $libname;
  61
  62 my $do_update = 0;
  63 my $do_rewrite = 1;
  64 my $do_crypto = 0;
  65 my $do_ssl = 0;
  66 my $do_ctest = 0;
  67 my $do_ctestall = 0;
  68 my $do_checkexist = 0;
  69
  70 my $VMS=0;
  71 my $W32=0;
  72 my $NT=0;
  73 my $UNIX=0;
  74 my $linux=0;
  75 # Set this to make typesafe STACK definitions appear in DEF
  76 my $safe_stack_def = 0;
  77
  78 my @known_platforms = ( "__FreeBSD__", "PERL5",
  79                         "EXPORT_VAR_AS_FUNCTION", "ZLIB", "_WIN32"
  80                         );
  81 my @known_ossl_platforms = ( "UNIX", "VMS", "WIN32", "WINNT", "OS2" );
  82 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  83                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  84                          "SHA256", "SHA512", "RMD160",
  85                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  86                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST", "ARIA",
  87                          "SCRYPT", "CHACHA", "POLY1305", "BLAKE2",
  88                          "SIPHASH",
  89                          # EC_NISTP_64_GCC_128
  90                          "EC_NISTP_64_GCC_128",
  91                          # Envelope "algorithms"
  92                          "EVP", "X509", "ASN1_TYPEDEFS",
  93                          # Helper "algorithms"
  94                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  95                          "LOCKING",
  96                          # External "algorithms"
  97                          "FP_API", "STDIO", "SOCK", "DGRAM",
  98                          "CRYPTO_MDEBUG",
  99                          # Engines
 100                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
 101                          # Entropy Gathering
 102                          "EGD",
 103                          # Certificate Transparency
 104                          "CT",
 105                          # RFC3779
 106                          "RFC3779",
 107                          # TLS
 108                          "PSK", "SRP", "HEARTBEATS",
 109                          # CMS
 110                          "CMS",
 111                          "OCSP",
 112                          # CryptoAPI Engine
 113                          "CAPIENG",
 114                          # SSL methods
 115                          "SSL3_METHOD", "TLS1_METHOD", "TLS1_1_METHOD", "TLS1_2_METHOD", "DTLS1_METHOD", "DTLS1_2_METHOD",
 116                          # NEXTPROTONEG
 117                          "NEXTPROTONEG",
 118                          # Deprecated functions
 119                          "DEPRECATEDIN_0_9_8",
 120                          "DEPRECATEDIN_1_0_0",
 121                          "DEPRECATEDIN_1_1_0",
 122                          "DEPRECATEDIN_1_2_0",
 123                          # SCTP
 124                          "SCTP",
 125                          # SRTP
 126                          "SRTP",
 127                          # SSL TRACE
 128                          "SSL_TRACE",
 129                          # Unit testing
 130                          "UNIT_TEST",
 131                          # User Interface
 132                          "UI_CONSOLE",
 133                          #
 134                          "TS",
 135                          # OCB mode
 136                          "OCB",
 137                          "CMAC",
 138                          # APPLINK (win build feature?)
 139                          "APPLINK"
 140                      );
 141
 142 my %disabled_algorithms;
 143
 144 foreach (@known_algorithms) {
 145     $disabled_algorithms{$_} = 0;
 146 }
 147 # disabled by default
 148 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 149
 150 my $apiv = sprintf "%x%02x%02x", split(/\./, $config{api});
 151 foreach (keys %disabled_algorithms) {
 152         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 153                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 154                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 155         }
 156 }
 157
 158 my $zlib;
 159
 160 foreach (@ARGV, split(/ /, $config{options}))
 161         {
 162         $debug=1 if $_ eq "debug";
 163         $W32=1 if $_ eq "32";
 164         die "win16 not supported" if $_ eq "16";
 165         if($_ eq "NT") {
 166                 $W32 = 1;
 167                 $NT = 1;
 168         }
 169         if ($_ eq "linux") {
 170                 $linux=1;
 171                 $UNIX=1;
 172         }
 173         $VMS=1 if $_ eq "VMS";
 174         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 175                          || $_ eq "enable-zlib-dynamic") {
 176                 $zlib = 1;
 177         }
 178
 179         $do_ssl=1 if $_ eq "libssl";
 180         if ($_ eq "ssl") {
 181                 $do_ssl=1;
 182                 $libname=$_
 183         }
 184         $do_crypto=1 if $_ eq "libcrypto";
 185         if ($_ eq "crypto") {
 186                 $do_crypto=1;
 187                 $libname=$_;
 188         }
 189         $do_update=1 if $_ eq "update";
 190         $do_rewrite=1 if $_ eq "rewrite";
 191         $do_ctest=1 if $_ eq "ctest";
 192         $do_ctestall=1 if $_ eq "ctestall";
 193         $do_checkexist=1 if $_ eq "exist";
 194         if (/^(enable|disable|no)-(.*)$/) {
 195                 my $alg = uc $2;
 196                 $alg =~ tr/-/_/;
 197                 if (exists $disabled_algorithms{$alg}) {
 198                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 199                 }
 200         }
 201
 202         }
 203
 204 if (!$libname) {
 205         if ($do_ssl) {
 206                 $libname="LIBSSL";
 207         }
 208         if ($do_crypto) {
 209                 $libname="LIBCRYPTO";
 210         }
 211 }
 212
 213 # If no platform is given, assume WIN32
 214 if ($W32 + $VMS + $linux == 0) {
 215         $W32 = 1;
 216 }
 217 die "Please, only one platform at a time"
 218     if ($W32 + $VMS + $linux > 1);
 219
 220 if (!$do_ssl && !$do_crypto)
 221         {
 222         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 223         exit(1);
 224         }
 225
 226 %ssl_list=&load_numbers($ssl_num);
 227 $max_ssl = $max_num;
 228 %crypto_list=&load_numbers($crypto_num);
 229 $max_crypto = $max_num;
 230
 231 my $ssl="include/openssl/ssl.h";
 232 $ssl.=" include/openssl/sslerr.h";
 233 $ssl.=" include/openssl/tls1.h";
 234 $ssl.=" include/openssl/srtp.h";
 235
 236 # When scanning include/openssl, skip all SSL files and some internal ones.
 237 my %skipthese;
 238 foreach my $f ( split(/\s+/, $ssl) ) {
 239     $skipthese{$f} = 1;
 240 }
 241 $skipthese{'include/openssl/conf_api.h'} = 1;
 242 $skipthese{'include/openssl/ebcdic.h'} = 1;
 243 $skipthese{'include/openssl/opensslconf.h'} = 1;
 244
 245 # We use headers found in include/openssl and include/internal only.
 246 # The latter is needed so libssl.so/.dll/.exe can link properly.
 247 my $crypto ="include/internal/dso.h";
 248 $crypto.=" include/internal/o_dir.h";
 249 $crypto.=" include/internal/o_str.h";
 250 $crypto.=" include/internal/err.h";
 251 $crypto.=" include/internal/rand.h";
 252 foreach my $f ( glob(catfile($config{sourcedir},'include/openssl/*.h')) ) {
 253     my $fn = "include/openssl/" . lc(basename($f));
 254     $crypto .= " $fn" if !defined $skipthese{$fn} && $f !~ m@/[a-z]+err\.h$@;
 255 }
 256
 257 my $symhacks="include/openssl/symhacks.h";
 258
 259 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 260 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 261
 262 if ($do_update) {
 263
 264 if ($do_ssl == 1) {
 265
 266         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 267         if ($do_rewrite == 1) {
 268                 open(OUT, ">$ssl_num");
 269                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 270         } else {
 271                 open(OUT, ">>$ssl_num");
 272         }
 273         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 274         close OUT;
 275 }
 276
 277 if($do_crypto == 1) {
 278
 279         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 280         if ($do_rewrite == 1) {
 281                 open(OUT, ">$crypto_num");
 282                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 283         } else {
 284                 open(OUT, ">>$crypto_num");
 285         }
 286         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 287         close OUT;
 288 }
 289
 290 } elsif ($do_checkexist) {
 291         &check_existing(*ssl_list, @ssl_symbols)
 292                 if $do_ssl == 1;
 293         &check_existing(*crypto_list, @crypto_symbols)
 294                 if $do_crypto == 1;
 295 } elsif ($do_ctest || $do_ctestall) {
 296
 297         print <<"EOF";
 298
 299 /* Test file to check all DEF file symbols are present by trying
 300  * to link to all of them. This is *not* intended to be run!
 301  */
 302
 303 int main()
 304 {
 305 EOF
 306         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 307                 if $do_ssl == 1;
 308
 309         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 310                 if $do_crypto == 1;
 311
 312         print "}\n";
 313
 314 } else {
 315
 316         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 317                 if $do_ssl == 1;
 318
 319         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 320                 if $do_crypto == 1;
 321
 322 }
 323
 324
 325 sub do_defs
 326 {
 327         my($name,$files,$symhacksfile)=@_;
 328         my $file;
 329         my @ret;
 330         my %syms;
 331         my %platform;           # For anything undefined, we assume ""
 332         my %kind;               # For anything undefined, we assume "FUNCTION"
 333         my %algorithm;          # For anything undefined, we assume ""
 334         my %variant;
 335         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 336                                 # is the same name as the original.
 337         my $cpp;
 338         my %unknown_algorithms = ();
 339         my $parens = 0;
 340
 341         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 342                 {
 343                 my $fn = catfile($config{sourcedir},$file);
 344                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 345                 open(IN,"<$fn") || die "Can't open $fn, $!,";
 346                 my $line = "", my $def= "";
 347                 my %tag = (
 348                         (map { $_ => 0 } @known_platforms),
 349                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 350                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 351                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 352                         (grep /^DEPRECATED_/, @known_algorithms),
 353                         NOPROTO         => 0,
 354                         PERL5           => 0,
 355                         _WINDLL         => 0,
 356                         CONST_STRICT    => 0,
 357                         TRUE            => 1,
 358                 );
 359                 my $symhacking = $file eq $symhacksfile;
 360                 my @current_platforms = ();
 361                 my @current_algorithms = ();
 362
 363                 # params: symbol, alias, platforms, kind
 364                 # The reason to put this subroutine in a variable is that
 365                 # it will otherwise create it's own, unshared, version of
 366                 # %tag and %variant...
 367                 my $make_variant = sub
 368                 {
 369                         my ($s, $a, $p, $k) = @_;
 370                         my ($a1, $a2);
 371
 372                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 373                         if (defined($p))
 374                         {
 375                                 $a1 = join(",",$p,
 376                                            grep(!/^$/,
 377                                                 map { $tag{$_} == 1 ? $_ : "" }
 378                                                 @known_platforms));
 379                         }
 380                         else
 381                         {
 382                                 $a1 = join(",",
 383                                            grep(!/^$/,
 384                                                 map { $tag{$_} == 1 ? $_ : "" }
 385                                                 @known_platforms));
 386                         }
 387                         $a2 = join(",",
 388                                    grep(!/^$/,
 389                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 390                                         @known_ossl_platforms));
 391                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 392                         if ($a1 eq "") { $a1 = $a2; }
 393                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 394                         if ($a eq $s)
 395                         {
 396                                 if (!defined($variant_cnt{$s}))
 397                                 {
 398                                         $variant_cnt{$s} = 0;
 399                                 }
 400                                 $variant_cnt{$s}++;
 401                                 $a .= "{$variant_cnt{$s}}";
 402                         }
 403                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 404                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 405                         if (!grep(/^$togrep$/,
 406                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 407                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 408                                 $variant{$s} .= $toadd;
 409                         }
 410                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 411                 };
 412
 413                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 414                 while(<IN>) {
 415                         s|\R$||; # Better chomp
 416                         if($parens > 0) {
 417                                 #Inside a DEPRECATEDIN
 418                                 $stored_multiline .= $_;
 419                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 420                                 $parens = count_parens($stored_multiline);
 421                                 if ($parens == 0) {
 422                                         $def .= do_deprecated($stored_multiline,
 423                                                         \@current_platforms,
 424                                                         \@current_algorithms);
 425                                 }
 426                                 next;
 427                         }
 428                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 429                                 {
 430                                 undef @tag;
 431                                 last;
 432                                 }
 433                         if ($line ne '') {
 434                                 $_ = $line . $_;
 435                                 $line = '';
 436                         }
 437
 438                         if (/\\$/) {
 439                                 $line = $`; # keep what was before the backslash
 440                                 next;
 441                         }
 442
 443                         if(/\/\*/) {
 444                                 if (not /\*\//) {       # multi-line comment...
 445                                         $line = $_;     # ... just accumulate
 446                                         next;
 447                                 } else {
 448                                         s/\/\*.*?\*\///gs;# wipe it
 449                                 }
 450                         }
 451
 452                         if ($cpp) {
 453                                 $cpp++ if /^#\s*if/;
 454                                 $cpp-- if /^#\s*endif/;
 455                                 next;
 456                         }
 457                         if (/^#.*ifdef.*cplusplus/) {
 458                                 $cpp = 1;
 459                                 next;
 460                         }
 461
 462                         s/{[^{}]*}//gs;                      # ignore {} blocks
 463                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 464                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 465                         if (/^\#\s*if\s+OPENSSL_API_COMPAT\s*(\S)\s*(0x[0-9a-fA-F]{8})L\s*$/) {
 466                                 my $op = $1;
 467                                 my $v = hex($2);
 468                                 if ($op ne '<' && $op ne '>=') {
 469                                     die "$file unacceptable operator $op: $_\n";
 470                                 }
 471                                 my ($one, $major, $minor) =
 472                                     ( ($v >> 28) & 0xf,
 473                                       ($v >> 20) & 0xff,
 474                                       ($v >> 12) & 0xff );
 475                                 my $t = "DEPRECATEDIN_${one}_${major}_${minor}";
 476                                 push(@tag,"-");
 477                                 push(@tag,$t);
 478                                 $tag{$t}=($op eq '<' ? 1 : -1);
 479                                 print STDERR "DEBUG: $file: found tag $t = $tag{$t}\n" if $debug;
 480                         } elsif (/^\#\s*ifndef\s+(.*)/) {
 481                                 push(@tag,"-");
 482                                 push(@tag,$1);
 483                                 $tag{$1}=-1;
 484                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 485                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 486                                 push(@tag,"-");
 487                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 488                                         my $tmp_1 = $1;
 489                                         my $tmp_;
 490                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 491                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 492                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 493                                                 push(@tag,$1);
 494                                                 $tag{$1}=-1;
 495                                         }
 496                                 } else {
 497                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 498                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 499                                         push(@tag,$1);
 500                                         $tag{$1}=-1;
 501                                 }
 502                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 503                                 push(@tag,"-");
 504                                 push(@tag,$1);
 505                                 $tag{$1}=1;
 506                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 507                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 508                                 push(@tag,"-");
 509                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 510                                         my $tmp_1 = $1;
 511                                         my $tmp_;
 512                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 513                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 514                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 515                                                 push(@tag,$1);
 516                                                 $tag{$1}=1;
 517                                         }
 518                                 } else {
 519                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 520                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 521                                         push(@tag,$1);
 522                                         $tag{$1}=1;
 523                                 }
 524                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 525                                 my $tag_i = $#tag;
 526                                 while($tag[$tag_i] ne "-") {
 527                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 528                                                 $tag{$tag[$tag_i]}=2;
 529                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 530                                         }
 531                                         $tag_i--;
 532                                 }
 533                         } elsif (/^\#\s*endif/) {
 534                                 my $tag_i = $#tag;
 535                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 536                                         my $t=$tag[$tag_i];
 537                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 538                                         if ($tag{$t}==2) {
 539                                                 $tag{$t}=-1;
 540                                         } else {
 541                                                 $tag{$t}=0;
 542                                         }
 543                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 544                                         pop(@tag);
 545                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 546                                                 $t=$1;
 547                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 548                                                 $t=$1;
 549                                         } else {
 550                                                 $t="";
 551                                         }
 552                                         if ($t ne ""
 553                                             && !grep(/^$t$/, @known_algorithms)) {
 554                                                 $unknown_algorithms{$t} = 1;
 555                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 556                                         }
 557                                         $tag_i--;
 558                                 }
 559                                 pop(@tag);
 560                         } elsif (/^\#\s*else/) {
 561                                 my $tag_i = $#tag;
 562                                 die "$file unmatched else\n" if $tag_i < 0;
 563                                 while($tag[$tag_i] ne "-") {
 564                                         my $t=$tag[$tag_i];
 565                                         $tag{$t}= -$tag{$t};
 566                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 567                                         $tag_i--;
 568                                 }
 569                         } elsif (/^\#\s*if\s+1/) {
 570                                 push(@tag,"-");
 571                                 # Dummy tag
 572                                 push(@tag,"TRUE");
 573                                 $tag{"TRUE"}=1;
 574                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 575                         } elsif (/^\#\s*if\s+0/) {
 576                                 push(@tag,"-");
 577                                 # Dummy tag
 578                                 push(@tag,"TRUE");
 579                                 $tag{"TRUE"}=-1;
 580                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 581                         } elsif (/^\#\s*if\s+/) {
 582                                 #Some other unrecognized "if" style
 583                                 push(@tag,"-");
 584                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 585                                  && $symhacking && $tag{'TRUE'} != -1) {
 586                                 # This is for aliasing.  When we find an alias,
 587                                 # we have to invert
 588                                 &$make_variant($1,$2);
 589                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 590                         }
 591                         if (/^\#/) {
 592                                 @current_platforms =
 593                                     grep(!/^$/,
 594                                          map { $tag{$_} == 1 ? $_ :
 595                                                    $tag{$_} == -1 ? "!".$_  : "" }
 596                                          @known_platforms);
 597                                 push @current_platforms
 598                                     , grep(!/^$/,
 599                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 600                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 601                                            @known_ossl_platforms);
 602                                 @current_algorithms = ();
 603                                 @current_algorithms =
 604                                     grep(!/^$/,
 605                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 606                                          @known_algorithms);
 607                                 push @current_algorithms
 608                                     , grep(!/^$/,
 609                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 610                                          @known_algorithms);
 611                                 push @current_algorithms,
 612                                     grep { /^DEPRECATEDIN_/ && $tag{$_} == 1 }
 613                                     @known_algorithms;
 614                                 $def .=
 615                                     "#INFO:"
 616                                         .join(',',@current_platforms).":"
 617                                             .join(',',@current_algorithms).";";
 618                                 next;
 619                         }
 620                         if ($tag{'TRUE'} != -1) {
 621                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 622                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 623                                         next;
 624                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 625                                         $def .= "int d2i_$3(void);";
 626                                         $def .= "int i2d_$3(void);";
 627                                         # Variant for platforms that do not
 628                                         # have to access global variables
 629                                         # in shared libraries through functions
 630                                         $def .=
 631                                             "#INFO:"
 632                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 633                                                     .join(',',@current_algorithms).";";
 634                                         $def .= "OPENSSL_EXTERN int $2_it;";
 635                                         $def .=
 636                                             "#INFO:"
 637                                                 .join(',',@current_platforms).":"
 638                                                     .join(',',@current_algorithms).";";
 639                                         # Variant for platforms that have to
 640                                         # access global variables in shared
 641                                         # libraries through functions
 642                                         &$make_variant("$2_it","$2_it",
 643                                                       "EXPORT_VAR_AS_FUNCTION",
 644                                                       "FUNCTION");
 645                                         next;
 646                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 647                                         $def .= "int d2i_$3(void);";
 648                                         $def .= "int i2d_$3(void);";
 649                                         $def .= "int $3_free(void);";
 650                                         $def .= "int $3_new(void);";
 651                                         # Variant for platforms that do not
 652                                         # have to access global variables
 653                                         # in shared libraries through functions
 654                                         $def .=
 655                                             "#INFO:"
 656                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 657                                                     .join(',',@current_algorithms).";";
 658                                         $def .= "OPENSSL_EXTERN int $2_it;";
 659                                         $def .=
 660                                             "#INFO:"
 661                                                 .join(',',@current_platforms).":"
 662                                                     .join(',',@current_algorithms).";";
 663                                         # Variant for platforms that have to
 664                                         # access global variables in shared
 665                                         # libraries through functions
 666                                         &$make_variant("$2_it","$2_it",
 667                                                       "EXPORT_VAR_AS_FUNCTION",
 668                                                       "FUNCTION");
 669                                         next;
 670                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 671                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 672                                         $def .= "int d2i_$1(void);";
 673                                         $def .= "int i2d_$1(void);";
 674                                         $def .= "int $1_free(void);";
 675                                         $def .= "int $1_new(void);";
 676                                         # Variant for platforms that do not
 677                                         # have to access global variables
 678                                         # in shared libraries through functions
 679                                         $def .=
 680                                             "#INFO:"
 681                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 682                                                     .join(',',@current_algorithms).";";
 683                                         $def .= "OPENSSL_EXTERN int $1_it;";
 684                                         $def .=
 685                                             "#INFO:"
 686                                                 .join(',',@current_platforms).":"
 687                                                     .join(',',@current_algorithms).";";
 688                                         # Variant for platforms that have to
 689                                         # access global variables in shared
 690                                         # libraries through functions
 691                                         &$make_variant("$1_it","$1_it",
 692                                                       "EXPORT_VAR_AS_FUNCTION",
 693                                                       "FUNCTION");
 694                                         next;
 695                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 696                                         $def .= "int d2i_$2(void);";
 697                                         $def .= "int i2d_$2(void);";
 698                                         # Variant for platforms that do not
 699                                         # have to access global variables
 700                                         # in shared libraries through functions
 701                                         $def .=
 702                                             "#INFO:"
 703                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 704                                                     .join(',',@current_algorithms).";";
 705                                         $def .= "OPENSSL_EXTERN int $2_it;";
 706                                         $def .=
 707                                             "#INFO:"
 708                                                 .join(',',@current_platforms).":"
 709                                                     .join(',',@current_algorithms).";";
 710                                         # Variant for platforms that have to
 711                                         # access global variables in shared
 712                                         # libraries through functions
 713                                         &$make_variant("$2_it","$2_it",
 714                                                       "EXPORT_VAR_AS_FUNCTION",
 715                                                       "FUNCTION");
 716                                         next;
 717                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 718                                         $def .= "int $1_free(void);";
 719                                         $def .= "int $1_new(void);";
 720                                         next;
 721                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 722                                         $def .= "int d2i_$2(void);";
 723                                         $def .= "int i2d_$2(void);";
 724                                         $def .= "int $2_free(void);";
 725                                         $def .= "int $2_new(void);";
 726                                         # Variant for platforms that do not
 727                                         # have to access global variables
 728                                         # in shared libraries through functions
 729                                         $def .=
 730                                             "#INFO:"
 731                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 732                                                     .join(',',@current_algorithms).";";
 733                                         $def .= "OPENSSL_EXTERN int $2_it;";
 734                                         $def .=
 735                                             "#INFO:"
 736                                                 .join(',',@current_platforms).":"
 737                                                     .join(',',@current_algorithms).";";
 738                                         # Variant for platforms that have to
 739                                         # access global variables in shared
 740                                         # libraries through functions
 741                                         &$make_variant("$2_it","$2_it",
 742                                                       "EXPORT_VAR_AS_FUNCTION",
 743                                                       "FUNCTION");
 744                                         next;
 745                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 746                                         # Variant for platforms that do not
 747                                         # have to access global variables
 748                                         # in shared libraries through functions
 749                                         $def .=
 750                                             "#INFO:"
 751                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 752                                                     .join(',',@current_algorithms).";";
 753                                         $def .= "OPENSSL_EXTERN int $1_it;";
 754                                         $def .=
 755                                             "#INFO:"
 756                                                 .join(',',@current_platforms).":"
 757                                                     .join(',',@current_algorithms).";";
 758                                         # Variant for platforms that have to
 759                                         # access global variables in shared
 760                                         # libraries through functions
 761                                         &$make_variant("$1_it","$1_it",
 762                                                       "EXPORT_VAR_AS_FUNCTION",
 763                                                       "FUNCTION");
 764                                         next;
 765                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 766                                         $def .= "int i2d_$1_NDEF(void);";
 767                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 768                                         next;
 769                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 770                                         $def .= "int $1_print_ctx(void);";
 771                                         next;
 772                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 773                                         $def .= "int $2_print_ctx(void);";
 774                                         next;
 775                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 776                                         next;
 777                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 778                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 779                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 780                                         $def .=
 781                                             "#INFO:"
 782                                                 .join(',',@current_platforms).":"
 783                                                     .join(',',"STDIO",@current_algorithms).";";
 784                                         $def .= "int PEM_read_$1(void);";
 785                                         $def .= "int PEM_write_$1(void);";
 786                                         $def .=
 787                                             "#INFO:"
 788                                                 .join(',',@current_platforms).":"
 789                                                     .join(',',@current_algorithms).";";
 790                                         # Things that are everywhere
 791                                         $def .= "int PEM_read_bio_$1(void);";
 792                                         $def .= "int PEM_write_bio_$1(void);";
 793                                         next;
 794                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 795                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 796                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 797                                         $def .=
 798                                             "#INFO:"
 799                                                 .join(',',@current_platforms).":"
 800                                                     .join(',',"STDIO",@current_algorithms).";";
 801                                         $def .= "int PEM_write_$1(void);";
 802                                         $def .=
 803                                             "#INFO:"
 804                                                 .join(',',@current_platforms).":"
 805                                                     .join(',',@current_algorithms).";";
 806                                         # Things that are everywhere
 807                                         $def .= "int PEM_write_bio_$1(void);";
 808                                         next;
 809                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 810                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 811                                         $def .=
 812                                             "#INFO:"
 813                                                 .join(',',@current_platforms).":"
 814                                                     .join(',',"STDIO",@current_algorithms).";";
 815                                         $def .= "int PEM_read_$1(void);";
 816                                         $def .=
 817                                             "#INFO:"
 818                                                 .join(',',@current_platforms).":"
 819                                                     .join(',',"STDIO",@current_algorithms).";";
 820                                         # Things that are everywhere
 821                                         $def .= "int PEM_read_bio_$1(void);";
 822                                         next;
 823                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 824                                         # Variant for platforms that do not
 825                                         # have to access global variables
 826                                         # in shared libraries through functions
 827                                         $def .=
 828                                             "#INFO:"
 829                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 830                                                     .join(',',@current_algorithms).";";
 831                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 832                                         $def .=
 833                                             "#INFO:"
 834                                                 .join(',',@current_platforms).":"
 835                                                     .join(',',@current_algorithms).";";
 836                                         # Variant for platforms that have to
 837                                         # access global variables in shared
 838                                         # libraries through functions
 839                                         &$make_variant("_shadow_$2","_shadow_$2",
 840                                                       "EXPORT_VAR_AS_FUNCTION",
 841                                                       "FUNCTION");
 842                                 } elsif (/^\s*DEPRECATEDIN/) {
 843                                         $parens = count_parens($_);
 844                                         if ($parens == 0) {
 845                                                 $def .= do_deprecated($_,
 846                                                         \@current_platforms,
 847                                                         \@current_algorithms);
 848                                         } else {
 849                                                 $stored_multiline = $_;
 850                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 851                                                 next;
 852                                         }
 853                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 854                                         if (/\{|\/\*|\([^\)]*$/) {
 855                                                 $line = $_;
 856                                         } else {
 857                                                 $def .= $_;
 858                                         }
 859                                 }
 860                         }
 861                 }
 862                 close(IN);
 863                 die "$file: Unmatched tags\n" if $#tag >= 0;
 864
 865                 my $algs;
 866                 my $plays;
 867
 868                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 869                 foreach (split /;/, $def) {
 870                         my $s; my $k = "FUNCTION"; my $p; my $a;
 871                         s/^[\n\s]*//g;
 872                         s/[\n\s]*$//g;
 873                         next if(/\#undef/);
 874                         next if(/typedef\W/);
 875                         next if(/\#define/);
 876
 877                         # Reduce argument lists to empty ()
 878                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 879                         while(/\(.*\)/s) {
 880                                 s/\([^\(\)]+\)/\{\}/gs;
 881                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 882                         }
 883                         # pretend as we didn't use curly braces: {} -> ()
 884                         s/\{\}/\(\)/gs;
 885
 886                         s/STACK_OF\(\)/void/gs;
 887                         s/LHASH_OF\(\)/void/gs;
 888
 889                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 890                         if (/^\#INFO:([^:]*):(.*)$/) {
 891                                 $plats = $1;
 892                                 $algs = $2;
 893                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 894                                 next;
 895                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 896                                 $s = $1;
 897                                 $k = "VARIABLE";
 898                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 899                         } elsif (/TYPEDEF_\w+_OF/s) {
 900                                 next;
 901                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 902                                 $s = $1;                # a function name!
 903                                 print STDERR "DEBUG: found function $s\n" if $debug;
 904                         } elsif (/\(/ and not (/=/)) {
 905                                 print STDERR "File $file: cannot parse: $_;\n";
 906                                 next;
 907                         } else {
 908                                 next;
 909                         }
 910
 911                         $syms{$s} = 1;
 912                         $kind{$s} = $k;
 913
 914                         $p = $plats;
 915                         $a = $algs;
 916
 917                         $platform{$s} =
 918                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 919                         $algorithm{$s} .= ','.$a;
 920
 921                         if (defined($variant{$s})) {
 922                                 foreach $v (split /;/,$variant{$s}) {
 923                                         (my $r, my $p, my $k) = split(/:/,$v);
 924                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 925                                         $syms{$r} = 1;
 926                                         if (!defined($k)) { $k = $kind{$s}; }
 927                                         $kind{$r} = $k."(".$s.")";
 928                                         $algorithm{$r} = $algorithm{$s};
 929                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 930                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 931                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 932                                 }
 933                         }
 934                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 935                 }
 936         }
 937
 938         # Prune the returned symbols
 939
 940         delete $syms{"bn_dump1"};
 941         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 942
 943         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 944         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 945         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 946         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 947
 948         # Info we know about
 949
 950         push @ret, map { $_."\\".&info_string($_,"EXIST",
 951                                               $platform{$_},
 952                                               $kind{$_},
 953                                               $algorithm{$_}) } keys %syms;
 954
 955         if (keys %unknown_algorithms) {
 956                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 957                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 958         }
 959         return(@ret);
 960 }
 961
 962 # Param: string of comma-separated platform-specs.
 963 sub reduce_platforms
 964 {
 965         my ($platforms) = @_;
 966         my $pl = defined($platforms) ? $platforms : "";
 967         my %p = map { $_ => 0 } split /,/, $pl;
 968         my $ret;
 969
 970         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 971             if $debug;
 972         # We do this, because if there's code like the following, it really
 973         # means the function exists in all cases and should therefore be
 974         # everywhere.  By increasing and decreasing, we may attain 0:
 975         #
 976         # ifndef WIN16
 977         #    int foo();
 978         # else
 979         #    int _fat foo();
 980         # endif
 981         foreach $platform (split /,/, $pl) {
 982                 if ($platform =~ /^!(.*)$/) {
 983                         $p{$1}--;
 984                 } else {
 985                         $p{$platform}++;
 986                 }
 987         }
 988         foreach $platform (keys %p) {
 989                 if ($p{$platform} == 0) { delete $p{$platform}; }
 990         }
 991
 992         delete $p{""};
 993
 994         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 995         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 996             if $debug;
 997         return $ret;
 998 }
 999
1000 sub info_string
1001 {
1002         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1003
1004         my %a = defined($algorithms) ?
1005             map { $_ => 1 } split /,/, $algorithms : ();
1006         my $k = defined($kind) ? $kind : "FUNCTION";
1007         my $ret;
1008         my $p = &reduce_platforms($platforms);
1009
1010         delete $a{""};
1011
1012         $ret = $exist;
1013         $ret .= ":".$p;
1014         $ret .= ":".$k;
1015         $ret .= ":".join(',',sort keys %a);
1016         return $ret;
1017 }
1018
1019 sub maybe_add_info
1020 {
1021         (my $name, *nums, my @symbols) = @_;
1022         my $sym;
1023         my $new_info = 0;
1024         my %syms=();
1025
1026         foreach $sym (@symbols) {
1027                 (my $s, my $i) = split /\\/, $sym;
1028                 if (defined($nums{$s})) {
1029                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1030                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1031                         if (!defined($dummy) || $i ne $dummy) {
1032                                 $nums{$s} = $n."\\".$vers."\\".$i;
1033                                 $new_info++;
1034                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1035                         }
1036                 }
1037                 $syms{$s} = 1;
1038         }
1039
1040         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1041         foreach $sym (@s) {
1042                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1043                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1044                         $new_info++;
1045                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1046                 }
1047         }
1048         if ($new_info) {
1049                 print STDERR "$name: $new_info old symbols have updated info\n";
1050                 if (!$do_rewrite) {
1051                         print STDERR "You should do a rewrite to fix this.\n";
1052                 }
1053         } else {
1054         }
1055 }
1056
1057 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1058 sub is_valid
1059 {
1060         my ($keywords_txt,$platforms) = @_;
1061         my (@keywords) = split /,/,$keywords_txt;
1062         my ($falsesum, $truesum) = (0, 1);
1063
1064         # Param: one keyword
1065         sub recognise
1066         {
1067                 my ($keyword,$platforms) = @_;
1068
1069                 if ($platforms) {
1070                         # platforms
1071                         if ($keyword eq "UNIX" && $UNIX) { return 1; }
1072                         if ($keyword eq "VMS" && $VMS) { return 1; }
1073                         if ($keyword eq "WIN32" && $W32) { return 1; }
1074                         if ($keyword eq "_WIN32" && $W32) { return 1; }
1075                         if ($keyword eq "WINNT" && $NT) { return 1; }
1076                         # Special platforms:
1077                         # EXPORT_VAR_AS_FUNCTION means that global variables
1078                         # will be represented as functions.
1079                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && $W32) {
1080                                 return 1;
1081                         }
1082                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1083                         return 0;
1084                 } else {
1085                         # algorithms
1086                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1087
1088                         # Nothing recognise as true
1089                         return 1;
1090                 }
1091         }
1092
1093         foreach $k (@keywords) {
1094                 if ($k =~ /^!(.*)$/) {
1095                         $falsesum += &recognise($1,$platforms);
1096                 } else {
1097                         $truesum *= &recognise($k,$platforms);
1098                 }
1099         }
1100         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1101         return (!$falsesum) && $truesum;
1102 }
1103
1104 sub print_test_file
1105 {
1106         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1107         my $n = 1; my @e; my @r;
1108         my $sym; my $prev = ""; my $prefSSLeay;
1109
1110         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1111         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1112         @symbols=((sort @e),(sort @r));
1113
1114         foreach $sym (@symbols) {
1115                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1116                 my $v = 0;
1117                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1118                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1119                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1120                 if (!defined($nums{$s})) {
1121                         print STDERR "Warning: $s does not have a number assigned\n"
1122                             if(!$do_update);
1123                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1124                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1125                         if ($prev eq $s2) {
1126                                 print OUT "\t/* The following has already appeared previously */\n";
1127                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1128                         }
1129                         $prev = $s2;    # To warn about duplicates...
1130
1131                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1132                         if ($v) {
1133                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1134                         } else {
1135                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1136                         }
1137                 }
1138         }
1139 }
1140
1141 sub get_version
1142 {
1143    return $config{version};
1144 }
1145
1146 sub print_def_file
1147 {
1148         (*OUT,my $name,*nums,my @symbols)=@_;
1149         my $n = 1; my @e; my @r; my @v; my $prev="";
1150         my $liboptions="";
1151         my $libname = $name;
1152         my $http_vendor = 'www.openssl.org/';
1153         my $version = get_version();
1154         my $what = "OpenSSL: implementation of Secure Socket Layer";
1155         my $description = "$what $version, $name - http://$http_vendor";
1156         my $prevsymversion = "", $prevprevsymversion = "";
1157         # For VMS
1158         my $prevnum = 0;
1159         my $symvtextcount = 0;
1160
1161         if ($W32)
1162                 { $libname.="32"; }
1163
1164         if ($W32)
1165                 {
1166                 print OUT <<"EOF";
1167 ;
1168 ; Definition file for the DLL version of the $name library from OpenSSL
1169 ;
1170
1171 LIBRARY         $libname        $liboptions
1172
1173 EOF
1174
1175                 print "EXPORTS\n";
1176                 }
1177         elsif ($VMS)
1178                 {
1179                 print OUT <<"EOF";
1180 CASE_SENSITIVE=YES
1181 SYMBOL_VECTOR=(-
1182 EOF
1183                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1184                 }
1185
1186         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1187         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1188         if ($VMS) {
1189             # VMS needs to have the symbols on slot number order
1190             @symbols=(map { $_->[1] }
1191                       sort { $a->[0] <=> $b->[0] }
1192                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1193                             die "Error: $s doesn't have a number assigned\n"
1194                                 if !defined($nums{$s});
1195                             (my $n, my @rest) = split /\\/, $nums{$s};
1196                             [ $n, $_ ] } (@e, @r, @v));
1197         } else {
1198             @symbols=((sort @e),(sort @r), (sort @v));
1199         }
1200
1201         my ($baseversion, $currversion) = get_openssl_version();
1202         my $thisversion;
1203         do {
1204                 if (!defined($thisversion)) {
1205                         $thisversion = $baseversion;
1206                 } else {
1207                         $thisversion = get_next_version($thisversion);
1208                 }
1209                 foreach $sym (@symbols) {
1210                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1211                         my $v = 0;
1212                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1213                         if (!defined($nums{$s})) {
1214                                 die "Error: $s does not have a number assigned\n"
1215                                         if(!$do_update);
1216                         } else {
1217                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1218                                 my %pf = ();
1219                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1220                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1221                                 if (is_valid($p,1) && is_valid($a,0)) {
1222                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1223                                         if ($prev eq $s2) {
1224                                                 print STDERR "Warning: Symbol '",$s2,
1225                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1226                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1227                                         }
1228                                         $prev = $s2;    # To warn about duplicates...
1229                                         if($linux) {
1230                                                 next if $symversion ne $thisversion;
1231                                                 if ($symversion ne $prevsymversion) {
1232                                                         if ($prevsymversion ne "") {
1233                                                                 if ($prevprevsymversion ne "") {
1234                                                                         print OUT "} OPENSSL_"
1235                                                                                                 ."$prevprevsymversion;\n\n";
1236                                                                 } else {
1237                                                                         print OUT "};\n\n";
1238                                                                 }
1239                                                         }
1240                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1241                                                         $prevprevsymversion = $prevsymversion;
1242                                                         $prevsymversion = $symversion;
1243                                                 }
1244                                                 print OUT "        $s2;\n";
1245                                         } elsif ($VMS) {
1246                                             while(++$prevnum < $n) {
1247                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1248                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1249                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1250                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1251                                                 }
1252                                                 if ($symvtextcount == 16) {
1253                                                     # Take away first comma
1254                                                     $symline =~ s/,//;
1255                                                 }
1256                                                 print OUT $symline;
1257                                                 $symvtextcount += length($symline) - 2;
1258                                             }
1259                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1260                                             my $symtype=
1261                                                 $v ? "DATA" : "PROCEDURE";
1262                                             my $symline=
1263                                                 ($s_uc ne $s
1264                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1265                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1266                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1267                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1268                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1269                                             }
1270                                             if ($symvtextcount == 16) {
1271                                                 # Take away first comma
1272                                                 $symline =~ s/,//;
1273                                             }
1274                                             print OUT $symline;
1275                                             $symvtextcount += length($symline) - 2;
1276                                         } elsif($v) {
1277                                                 printf OUT "    %s%-39s DATA\n",
1278                                                                 ($W32)?"":"_",$s2;
1279                                         } else {
1280                                                 printf OUT "    %s%s\n",
1281                                                                 ($W32)?"":"_",$s2;
1282                                         }
1283                                 }
1284                         }
1285                 }
1286         } while ($linux && $thisversion ne $currversion);
1287         if ($linux) {
1288                 if ($prevprevsymversion ne "") {
1289                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1290                 } else {
1291                         print OUT "    local: *;\n};\n\n";
1292                 }
1293         } elsif ($VMS) {
1294             print OUT ")\n";
1295             (my $libvmaj, my $libvmin, my $libvedit) =
1296                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1297             # The reason to multiply the edit number with 100 is to make space
1298             # for the possibility that we want to encode the patch letters
1299             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1300         }
1301         printf OUT "\n";
1302 }
1303
1304 sub load_numbers
1305 {
1306         my($name)=@_;
1307         my(@a,%ret);
1308         my $prevversion;
1309
1310         $max_num = 0;
1311         $num_noinfo = 0;
1312         $prev = "";
1313         $prev_cnt = 0;
1314
1315         my ($baseversion, $currversion) = get_openssl_version();
1316
1317         open(IN,"<$name") || die "unable to open $name:$!\n";
1318         while (<IN>) {
1319                 s|\R$||;        # Better chomp
1320                 s/#.*$//;
1321                 next if /^\s*$/;
1322                 @a=split;
1323                 if (defined $ret{$a[0]}) {
1324                         # This is actually perfectly OK
1325                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1326                 }
1327                 if ($max_num > $a[1]) {
1328                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1329                 }
1330                 elsif ($max_num == $a[1]) {
1331                         # This is actually perfectly OK
1332                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1333                         if ($a[0] eq $prev) {
1334                                 $prev_cnt++;
1335                                 $a[0] .= "{$prev_cnt}";
1336                         }
1337                 }
1338                 else {
1339                         $prev_cnt = 0;
1340                 }
1341                 if ($#a < 2) {
1342                         # Existence will be proven later, in do_defs
1343                         $ret{$a[0]}=$a[1];
1344                         $num_noinfo++;
1345                 } else {
1346                         #Sanity check the version number
1347                         if (defined $prevversion) {
1348                                 check_version_lte($prevversion, $a[2]);
1349                         }
1350                         check_version_lte($a[2], $currversion);
1351                         $prevversion = $a[2];
1352                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1353                 }
1354                 $max_num = $a[1] if $a[1] > $max_num;
1355                 $prev=$a[0];
1356         }
1357         if ($num_noinfo) {
1358                 print STDERR "Warning: $num_noinfo symbols were without info.";
1359                 if ($do_rewrite) {
1360                         printf STDERR "  The rewrite will fix this.\n";
1361                 } else {
1362                         printf STDERR "  You should do a rewrite to fix this.\n";
1363                 }
1364         }
1365         close(IN);
1366         return(%ret);
1367 }
1368
1369 sub parse_number
1370 {
1371         (my $str, my $what) = @_;
1372         (my $n, my $v, my $i) = split(/\\/,$str);
1373         if ($what eq "n") {
1374                 return $n;
1375         } else {
1376                 return $i;
1377         }
1378 }
1379
1380 sub rewrite_numbers
1381 {
1382         (*OUT,$name,*nums,@symbols)=@_;
1383         my $thing;
1384
1385         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1386         my $r; my %r; my %rsyms;
1387         foreach $r (@r) {
1388                 (my $s, my $i) = split /\\/, $r;
1389                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1390                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1391                 $r{$a} = $s."\\".$i;
1392                 $rsyms{$s} = 1;
1393         }
1394
1395         my %syms = ();
1396         foreach $_ (@symbols) {
1397                 (my $n, my $i) = split /\\/;
1398                 $syms{$n} = 1;
1399         }
1400
1401         my @s=sort {
1402             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1403             || $a cmp $b
1404         } keys %nums;
1405         foreach $sym (@s) {
1406                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1407                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1408                 next if defined($rsyms{$sym});
1409                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1410                 $i="NOEXIST::FUNCTION:"
1411                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1412                 my $s2 = $sym;
1413                 $s2 =~ s/\{[0-9]+\}$//;
1414                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1415                 if (exists $r{$sym}) {
1416                         (my $s, $i) = split /\\/,$r{$sym};
1417                         my $s2 = $s;
1418                         $s2 =~ s/\{[0-9]+\}$//;
1419                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1420                 }
1421         }
1422 }
1423
1424 sub update_numbers
1425 {
1426         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1427         my $new_syms = 0;
1428         my $basevers;
1429         my $vers;
1430
1431         ($basevers, $vers) = get_openssl_version();
1432
1433         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1434         my $r; my %r; my %rsyms;
1435         foreach $r (@r) {
1436                 (my $s, my $i) = split /\\/, $r;
1437                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1438                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1439                 $r{$a} = $s."\\".$i;
1440                 $rsyms{$s} = 1;
1441         }
1442
1443         foreach $sym (@symbols) {
1444                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1445                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1446                 next if defined($rsyms{$sym});
1447                 die "ERROR: Symbol $sym had no info attached to it."
1448                     if $i eq "";
1449                 if (!exists $nums{$s}) {
1450                         $new_syms++;
1451                         my $s2 = $s;
1452                         $s2 =~ s/\{[0-9]+\}$//;
1453                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1454                         if (exists $r{$s}) {
1455                                 ($s, $i) = split /\\/,$r{$s};
1456                                 $s =~ s/\{[0-9]+\}$//;
1457                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1458                         }
1459                 }
1460         }
1461         if($new_syms) {
1462                 print STDERR "$name: Added $new_syms new symbols\n";
1463         } else {
1464                 print STDERR "$name: No new symbols added\n";
1465         }
1466 }
1467
1468 sub check_existing
1469 {
1470         (*nums, my @symbols)=@_;
1471         my %existing; my @remaining;
1472         @remaining=();
1473         foreach $sym (@symbols) {
1474                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1475                 $existing{$s}=1;
1476         }
1477         foreach $sym (keys %nums) {
1478                 if (!exists $existing{$sym}) {
1479                         push @remaining, $sym;
1480                 }
1481         }
1482         if(@remaining) {
1483                 print STDERR "The following symbols do not seem to exist:\n";
1484                 foreach $sym (@remaining) {
1485                         print STDERR "\t",$sym,"\n";
1486                 }
1487         }
1488 }
1489
1490 sub count_parens
1491 {
1492         my $line = shift(@_);
1493
1494         my $open = $line =~ tr/\(//;
1495         my $close = $line =~ tr/\)//;
1496
1497         return $open - $close;
1498 }
1499
1500 #Parse opensslv.h to get the current version number. Also work out the base
1501 #version, i.e. the lowest version number that is binary compatible with this
1502 #version
1503 sub get_openssl_version()
1504 {
1505         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1506         open (IN, "$fn") || die "Can't open opensslv.h";
1507
1508         while(<IN>) {
1509                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1510                         my $suffix = $2;
1511                         (my $baseversion = $1) =~ s/\./_/g;
1512                         close IN;
1513                         return ($baseversion."0", $baseversion.$suffix);
1514                 }
1515         }
1516         die "Can't find OpenSSL version number\n";
1517 }
1518
1519 #Given an OpenSSL version number, calculate the next version number. If the
1520 #version number gets to a.b.czz then we go to a.b.(c+1)
1521 sub get_next_version()
1522 {
1523         my $thisversion = shift;
1524
1525         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1526
1527         if ($letter eq "zz") {
1528                 my $lastnum = substr($base, -1);
1529                 return substr($base, 0, length($base)-1).(++$lastnum);
1530         }
1531         return $base.get_next_letter($letter);
1532 }
1533
1534 #Given the letters off the end of an OpenSSL version string, calculate what
1535 #the letters for the next release would be.
1536 sub get_next_letter()
1537 {
1538         my $thisletter = shift;
1539         my $baseletter = "";
1540         my $endletter;
1541
1542         if ($thisletter eq "") {
1543                 return "a";
1544         }
1545         if ((length $thisletter) > 1) {
1546                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1547         } else {
1548                 $endletter = $thisletter;
1549         }
1550
1551         if ($endletter eq "z") {
1552                 return $thisletter."a";
1553         } else {
1554                 return $baseletter.(++$endletter);
1555         }
1556 }
1557
1558 #Check if a version is less than or equal to the current version. Its a fatal
1559 #error if not. They must also only differ in letters, or the last number (i.e.
1560 #the first two numbers must be the same)
1561 sub check_version_lte()
1562 {
1563         my ($testversion, $currversion) = @_;
1564         my $lentv;
1565         my $lencv;
1566         my $cvbase;
1567
1568         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1569         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1570
1571         #Die if we can't parse the version numbers or they don't look sane
1572         die "Invalid version number: $testversion and $currversion\n"
1573                 if (!defined($cvnums) || !defined($tvnums)
1574                         || length($cvnums) != 5
1575                         || length($tvnums) != 5);
1576
1577         #If the base versions (without letters) don't match check they only differ
1578         #in the last number
1579         if ($cvnums ne $tvnums) {
1580                 die "Invalid version number: $testversion "
1581                         ."for current version $currversion\n"
1582                         if (substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1583                 return;
1584         }
1585         #If we get here then the base version (i.e. the numbers) are the same - they
1586         #only differ in the letters
1587
1588         $lentv = length $testversion;
1589         $lencv = length $currversion;
1590
1591         #If the testversion has more letters than the current version then it must
1592         #be later (or malformed)
1593         if ($lentv > $lencv) {
1594                 die "Invalid version number: $testversion "
1595                         ."is greater than $currversion\n";
1596         }
1597
1598         #Get the last letter from the current version
1599         my ($cvletter) = $currversion =~ /([a-z])$/;
1600         if (defined $cvletter) {
1601                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1602         } else {
1603                 $cvbase = $currversion;
1604         }
1605         die "Unable to parse version number $currversion" if (!defined $cvbase);
1606         my $tvbase;
1607         my ($tvletter) = $testversion =~ /([a-z])$/;
1608         if (defined $tvletter) {
1609                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1610         } else {
1611                 $tvbase = $testversion;
1612         }
1613         die "Unable to parse version number $testversion" if (!defined $tvbase);
1614
1615         if ($lencv > $lentv) {
1616                 #If current version has more letters than testversion then testversion
1617                 #minus the final letter must be a substring of the current version
1618                 die "Invalid version number $testversion "
1619                         ."is greater than $currversion or is invalid\n"
1620                         if (index($cvbase, $tvbase) != 0);
1621         } else {
1622                 #If both versions have the same number of letters then they must be
1623                 #equal up to the last letter, and the last letter in testversion must
1624                 #be less than or equal to the last letter in current version.
1625                 die "Invalid version number $testversion "
1626                         ."is greater than $currversion\n"
1627                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1628         }
1629 }
1630
1631 sub do_deprecated()
1632 {
1633         my ($decl, $plats, $algs) = @_;
1634         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1635             or die "Bad DEPRECTEDIN: $decl\n";
1636         my $info1 .= "#INFO:";
1637         $info1 .= join(',', @{$plats}) . ":";
1638         my $info2 = $info1;
1639         $info1 .= join(',',@{$algs}, $1) . ";";
1640         $info2 .= join(',',@{$algs}) . ";";
1641         return $info1 . $2 . ";" . $info2;
1642 }