util/mkdef.pl

   1 #! /usr/bin/env perl
   2 # Copyright 1995-2016 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 itms, 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
  52 my $debug=0;
  53
  54 my $crypto_num= catfile($config{sourcedir},"util","libcrypto.num");
  55 my $ssl_num=    catfile($config{sourcedir},"util","libssl.num");
  56 my $libname;
  57
  58 my $do_update = 0;
  59 my $do_rewrite = 1;
  60 my $do_crypto = 0;
  61 my $do_ssl = 0;
  62 my $do_ctest = 0;
  63 my $do_ctestall = 0;
  64 my $do_checkexist = 0;
  65
  66 my $VMS=0;
  67 my $W32=0;
  68 my $NT=0;
  69 my $linux=0;
  70 # Set this to make typesafe STACK definitions appear in DEF
  71 my $safe_stack_def = 0;
  72
  73 my @known_platforms = ( "__FreeBSD__", "PERL5",
  74                         "EXPORT_VAR_AS_FUNCTION", "ZLIB", "_WIN32"
  75                         );
  76 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  77 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  78                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  79                          "SHA256", "SHA512", "RMD160",
  80                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  81                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  82                          "SCRYPT", "CHACHA", "POLY1305", "BLAKE2",
  83                          # EC_NISTP_64_GCC_128
  84                          "EC_NISTP_64_GCC_128",
  85                          # Envelope "algorithms"
  86                          "EVP", "X509", "ASN1_TYPEDEFS",
  87                          # Helper "algorithms"
  88                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  89                          "LOCKING",
  90                          # External "algorithms"
  91                          "FP_API", "STDIO", "SOCK", "DGRAM",
  92                          "CRYPTO_MDEBUG",
  93                          # Engines
  94                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  95                          # Entropy Gathering
  96                          "EGD",
  97                          # Certificate Transparency
  98                          "CT",
  99                          # RFC3779
 100                          "RFC3779",
 101                          # TLS
 102                          "PSK", "SRP", "HEARTBEATS",
 103                          # CMS
 104                          "CMS",
 105                          "OCSP",
 106                          # CryptoAPI Engine
 107                          "CAPIENG",
 108                          # SSL methods
 109                          "SSL3_METHOD", "TLS1_METHOD", "TLS1_1_METHOD", "TLS1_2_METHOD", "DTLS1_METHOD", "DTLS1_2_METHOD",
 110                          # NEXTPROTONEG
 111                          "NEXTPROTONEG",
 112                          # Deprecated functions
 113                          "DEPRECATEDIN_0_9_8",
 114                          "DEPRECATEDIN_1_0_0",
 115                          "DEPRECATEDIN_1_1_0",
 116                          # SCTP
 117                          "SCTP",
 118                          # SRTP
 119                          "SRTP",
 120                          # SSL TRACE
 121                          "SSL_TRACE",
 122                          # Unit testing
 123                          "UNIT_TEST",
 124                          # User Interface
 125                          "UI",
 126                          #
 127                          "TS",
 128                          # OCB mode
 129                          "OCB",
 130                          "CMAC",
 131                          # APPLINK (win build feature?)
 132                          "APPLINK"
 133                      );
 134
 135 my %disabled_algorithms;
 136
 137 foreach (@known_algorithms) {
 138     $disabled_algorithms{$_} = 0;
 139 }
 140 # disabled by default
 141 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 142
 143 my $zlib;
 144
 145 foreach (@ARGV, split(/ /, $config{options}))
 146         {
 147         $debug=1 if $_ eq "debug";
 148         $W32=1 if $_ eq "32";
 149         die "win16 not supported" if $_ eq "16";
 150         if($_ eq "NT") {
 151                 $W32 = 1;
 152                 $NT = 1;
 153         }
 154         if ($_ eq "linux") {
 155                 $linux=1;
 156         }
 157         $VMS=1 if $_ eq "VMS";
 158         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 159                          || $_ eq "enable-zlib-dynamic") {
 160                 $zlib = 1;
 161         }
 162
 163         $do_ssl=1 if $_ eq "libssl";
 164         if ($_ eq "ssl") {
 165                 $do_ssl=1;
 166                 $libname=$_
 167         }
 168         $do_crypto=1 if $_ eq "libcrypto";
 169         if ($_ eq "crypto") {
 170                 $do_crypto=1;
 171                 $libname=$_;
 172         }
 173         $do_update=1 if $_ eq "update";
 174         $do_rewrite=1 if $_ eq "rewrite";
 175         $do_ctest=1 if $_ eq "ctest";
 176         $do_ctestall=1 if $_ eq "ctestall";
 177         $do_checkexist=1 if $_ eq "exist";
 178         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 179                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 180                 foreach (keys %disabled_algorithms) {
 181                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 182                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 183                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 184                         }
 185                 }
 186         }
 187         if (/^no-deprecated$/) {
 188                 foreach (keys %disabled_algorithms) {
 189                         if (/^DEPRECATEDIN_/) {
 190                                 $disabled_algorithms{$_} = 1;
 191                         }
 192                 }
 193         }
 194         elsif (/^(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/tls1.h";
 233 $ssl.=" include/openssl/srtp.h";
 234
 235 # We use headers found in include/openssl and include/internal only.
 236 # The latter is needed so libssl.so/.dll/.exe can link properly.
 237 my $crypto ="include/openssl/crypto.h";
 238 $crypto.=" include/internal/o_dir.h";
 239 $crypto.=" include/internal/o_str.h";
 240 $crypto.=" include/internal/err.h";
 241 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 242 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 243 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 244 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 245 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 246 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 247 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 248 $crypto.=" include/openssl/whrlpool.h" ;
 249 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 250 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 251 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 252 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 253 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 254 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 255 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 256 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 257 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 258
 259 $crypto.=" include/openssl/bn.h";
 260 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 261 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 262 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 263 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 264 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 265 $crypto.=" include/openssl/cmac.h" ;
 266
 267 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 268 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 269 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 270 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 271 $crypto.=" include/internal/dso.h" ; # unless $no_dso;
 272 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 273 $crypto.=" include/openssl/conf.h";
 274 $crypto.=" include/openssl/txt_db.h";
 275
 276 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 277 $crypto.=" include/openssl/objects.h";
 278 $crypto.=" include/openssl/pem.h";
 279 #$crypto.=" include/openssl/meth.h";
 280 $crypto.=" include/openssl/asn1.h";
 281 $crypto.=" include/openssl/asn1t.h";
 282 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 283 $crypto.=" include/openssl/pkcs7.h";
 284 $crypto.=" include/openssl/pkcs12.h";
 285 $crypto.=" include/openssl/x509.h";
 286 $crypto.=" include/openssl/x509_vfy.h";
 287 $crypto.=" include/openssl/x509v3.h";
 288 $crypto.=" include/openssl/ts.h";
 289 $crypto.=" include/openssl/rand.h";
 290 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 291 $crypto.=" include/openssl/ocsp.h";
 292 $crypto.=" include/openssl/ui.h";
 293 #$crypto.=" include/openssl/store.h";
 294 $crypto.=" include/openssl/cms.h";
 295 $crypto.=" include/openssl/srp.h";
 296 $crypto.=" include/openssl/modes.h";
 297 $crypto.=" include/openssl/async.h";
 298 $crypto.=" include/openssl/ct.h";
 299 $crypto.=" include/openssl/kdf.h";
 300
 301 my $symhacks="include/openssl/symhacks.h";
 302
 303 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 304 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 305
 306 if ($do_update) {
 307
 308 if ($do_ssl == 1) {
 309
 310         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 311         if ($do_rewrite == 1) {
 312                 open(OUT, ">$ssl_num");
 313                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 314         } else {
 315                 open(OUT, ">>$ssl_num");
 316         }
 317         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 318         close OUT;
 319 }
 320
 321 if($do_crypto == 1) {
 322
 323         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 324         if ($do_rewrite == 1) {
 325                 open(OUT, ">$crypto_num");
 326                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 327         } else {
 328                 open(OUT, ">>$crypto_num");
 329         }
 330         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 331         close OUT;
 332 }
 333
 334 } elsif ($do_checkexist) {
 335         &check_existing(*ssl_list, @ssl_symbols)
 336                 if $do_ssl == 1;
 337         &check_existing(*crypto_list, @crypto_symbols)
 338                 if $do_crypto == 1;
 339 } elsif ($do_ctest || $do_ctestall) {
 340
 341         print <<"EOF";
 342
 343 /* Test file to check all DEF file symbols are present by trying
 344  * to link to all of them. This is *not* intended to be run!
 345  */
 346
 347 int main()
 348 {
 349 EOF
 350         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 351                 if $do_ssl == 1;
 352
 353         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 354                 if $do_crypto == 1;
 355
 356         print "}\n";
 357
 358 } else {
 359
 360         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 361                 if $do_ssl == 1;
 362
 363         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 364                 if $do_crypto == 1;
 365
 366 }
 367
 368
 369 sub do_defs
 370 {
 371         my($name,$files,$symhacksfile)=@_;
 372         my $file;
 373         my @ret;
 374         my %syms;
 375         my %platform;           # For anything undefined, we assume ""
 376         my %kind;               # For anything undefined, we assume "FUNCTION"
 377         my %algorithm;          # For anything undefined, we assume ""
 378         my %variant;
 379         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 380                                 # is the same name as the original.
 381         my $cpp;
 382         my %unknown_algorithms = ();
 383         my $parens = 0;
 384
 385         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 386                 {
 387                 my $fn = catfile($config{sourcedir},$file);
 388                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 389                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
 390                 my $line = "", my $def= "";
 391                 my %tag = (
 392                         (map { $_ => 0 } @known_platforms),
 393                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 394                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 395                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 396                         NOPROTO         => 0,
 397                         PERL5           => 0,
 398                         _WINDLL         => 0,
 399                         CONST_STRICT    => 0,
 400                         TRUE            => 1,
 401                 );
 402                 my $symhacking = $file eq $symhacksfile;
 403                 my @current_platforms = ();
 404                 my @current_algorithms = ();
 405
 406                 # params: symbol, alias, platforms, kind
 407                 # The reason to put this subroutine in a variable is that
 408                 # it will otherwise create it's own, unshared, version of
 409                 # %tag and %variant...
 410                 my $make_variant = sub
 411                 {
 412                         my ($s, $a, $p, $k) = @_;
 413                         my ($a1, $a2);
 414
 415                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 416                         if (defined($p))
 417                         {
 418                                 $a1 = join(",",$p,
 419                                            grep(!/^$/,
 420                                                 map { $tag{$_} == 1 ? $_ : "" }
 421                                                 @known_platforms));
 422                         }
 423                         else
 424                         {
 425                                 $a1 = join(",",
 426                                            grep(!/^$/,
 427                                                 map { $tag{$_} == 1 ? $_ : "" }
 428                                                 @known_platforms));
 429                         }
 430                         $a2 = join(",",
 431                                    grep(!/^$/,
 432                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 433                                         @known_ossl_platforms));
 434                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 435                         if ($a1 eq "") { $a1 = $a2; }
 436                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 437                         if ($a eq $s)
 438                         {
 439                                 if (!defined($variant_cnt{$s}))
 440                                 {
 441                                         $variant_cnt{$s} = 0;
 442                                 }
 443                                 $variant_cnt{$s}++;
 444                                 $a .= "{$variant_cnt{$s}}";
 445                         }
 446                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 447                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 448                         if (!grep(/^$togrep$/,
 449                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 450                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 451                                 $variant{$s} .= $toadd;
 452                         }
 453                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 454                 };
 455
 456                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 457                 while(<IN>) {
 458                         if($parens > 0) {
 459                                 #Inside a DEPRECATEDIN
 460                                 $stored_multiline .= $_;
 461                                 $stored_multiline =~ s|\R$||; # Better chomp
 462                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 463                                 $parens = count_parens($stored_multiline);
 464                                 if ($parens == 0) {
 465                                         $def .= do_deprecated($stored_multiline,
 466                                                         \@current_platforms,
 467                                                         \@current_algorithms);
 468                                 }
 469                                 next;
 470                         }
 471                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 472                                 {
 473                                 undef @tag;
 474                                 last;
 475                                 }
 476                         if ($line ne '') {
 477                                 $_ = $line . $_;
 478                                 $line = '';
 479                         }
 480
 481                         if (/\\$/) {
 482                                 $line = $`; # keep what was before the backslash
 483                                 next;
 484                         }
 485
 486                         if(/\/\*/) {
 487                                 if (not /\*\//) {       # multiline comment...
 488                                         $line = $_;     # ... just accumulate
 489                                         next;
 490                                 } else {
 491                                         s/\/\*.*?\*\///gs;# wipe it
 492                                 }
 493                         }
 494
 495                         if ($cpp) {
 496                                 $cpp++ if /^#\s*if/;
 497                                 $cpp-- if /^#\s*endif/;
 498                                 next;
 499                         }
 500                         if (/^#.*ifdef.*cplusplus/) {
 501                                 $cpp = 1;
 502                                 next;
 503                         }
 504
 505                         s/{[^{}]*}//gs;                      # ignore {} blocks
 506                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 507                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 508                         if (/^\#\s*ifndef\s+(.*)/) {
 509                                 push(@tag,"-");
 510                                 push(@tag,$1);
 511                                 $tag{$1}=-1;
 512                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 513                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 514                                 push(@tag,"-");
 515                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 516                                         my $tmp_1 = $1;
 517                                         my $tmp_;
 518                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 519                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 520                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 521                                                 push(@tag,$1);
 522                                                 $tag{$1}=-1;
 523                                         }
 524                                 } else {
 525                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 526                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 527                                         push(@tag,$1);
 528                                         $tag{$1}=-1;
 529                                 }
 530                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 531                                 push(@tag,"-");
 532                                 push(@tag,$1);
 533                                 $tag{$1}=1;
 534                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 535                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 536                                 push(@tag,"-");
 537                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 538                                         my $tmp_1 = $1;
 539                                         my $tmp_;
 540                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 541                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 542                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 543                                                 push(@tag,$1);
 544                                                 $tag{$1}=1;
 545                                         }
 546                                 } else {
 547                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 548                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 549                                         push(@tag,$1);
 550                                         $tag{$1}=1;
 551                                 }
 552                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 553                                 my $tag_i = $#tag;
 554                                 while($tag[$tag_i] ne "-") {
 555                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 556                                                 $tag{$tag[$tag_i]}=2;
 557                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 558                                         }
 559                                         $tag_i--;
 560                                 }
 561                         } elsif (/^\#\s*endif/) {
 562                                 my $tag_i = $#tag;
 563                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 564                                         my $t=$tag[$tag_i];
 565                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 566                                         if ($tag{$t}==2) {
 567                                                 $tag{$t}=-1;
 568                                         } else {
 569                                                 $tag{$t}=0;
 570                                         }
 571                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 572                                         pop(@tag);
 573                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 574                                                 $t=$1;
 575                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 576                                                 $t=$1;
 577                                         } else {
 578                                                 $t="";
 579                                         }
 580                                         if ($t ne ""
 581                                             && !grep(/^$t$/, @known_algorithms)) {
 582                                                 $unknown_algorithms{$t} = 1;
 583                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 584                                         }
 585                                         $tag_i--;
 586                                 }
 587                                 pop(@tag);
 588                         } elsif (/^\#\s*else/) {
 589                                 my $tag_i = $#tag;
 590                                 die "$file unmatched else\n" if $tag_i < 0;
 591                                 while($tag[$tag_i] ne "-") {
 592                                         my $t=$tag[$tag_i];
 593                                         $tag{$t}= -$tag{$t};
 594                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 595                                         $tag_i--;
 596                                 }
 597                         } elsif (/^\#\s*if\s+1/) {
 598                                 push(@tag,"-");
 599                                 # Dummy tag
 600                                 push(@tag,"TRUE");
 601                                 $tag{"TRUE"}=1;
 602                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 603                         } elsif (/^\#\s*if\s+0/) {
 604                                 push(@tag,"-");
 605                                 # Dummy tag
 606                                 push(@tag,"TRUE");
 607                                 $tag{"TRUE"}=-1;
 608                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 609                         } elsif (/^\#\s*if\s+/) {
 610                                 #Some other unrecognized "if" style
 611                                 push(@tag,"-");
 612                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 613                                  && $symhacking && $tag{'TRUE'} != -1) {
 614                                 # This is for aliasing.  When we find an alias,
 615                                 # we have to invert
 616                                 &$make_variant($1,$2);
 617                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 618                         }
 619                         if (/^\#/) {
 620                                 @current_platforms =
 621                                     grep(!/^$/,
 622                                          map { $tag{$_} == 1 ? $_ :
 623                                                    $tag{$_} == -1 ? "!".$_  : "" }
 624                                          @known_platforms);
 625                                 push @current_platforms
 626                                     , grep(!/^$/,
 627                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 628                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 629                                            @known_ossl_platforms);
 630                                 @current_algorithms = ();
 631                                 @current_algorithms =
 632                                     grep(!/^$/,
 633                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 634                                          @known_algorithms);
 635                                 push @current_algorithms
 636                                     , grep(!/^$/,
 637                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 638                                          @known_algorithms);
 639                                 $def .=
 640                                     "#INFO:"
 641                                         .join(',',@current_platforms).":"
 642                                             .join(',',@current_algorithms).";";
 643                                 next;
 644                         }
 645                         if ($tag{'TRUE'} != -1) {
 646                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 647                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 648                                         next;
 649                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 650                                         $def .= "int d2i_$3(void);";
 651                                         $def .= "int i2d_$3(void);";
 652                                         # Variant for platforms that do not
 653                                         # have to access globale variables
 654                                         # in shared libraries through functions
 655                                         $def .=
 656                                             "#INFO:"
 657                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 658                                                     .join(',',@current_algorithms).";";
 659                                         $def .= "OPENSSL_EXTERN int $2_it;";
 660                                         $def .=
 661                                             "#INFO:"
 662                                                 .join(',',@current_platforms).":"
 663                                                     .join(',',@current_algorithms).";";
 664                                         # Variant for platforms that have to
 665                                         # access globale variables in shared
 666                                         # libraries through functions
 667                                         &$make_variant("$2_it","$2_it",
 668                                                       "EXPORT_VAR_AS_FUNCTION",
 669                                                       "FUNCTION");
 670                                         next;
 671                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 672                                         $def .= "int d2i_$3(void);";
 673                                         $def .= "int i2d_$3(void);";
 674                                         $def .= "int $3_free(void);";
 675                                         $def .= "int $3_new(void);";
 676                                         # Variant for platforms that do not
 677                                         # have to access globale 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 $2_it;";
 684                                         $def .=
 685                                             "#INFO:"
 686                                                 .join(',',@current_platforms).":"
 687                                                     .join(',',@current_algorithms).";";
 688                                         # Variant for platforms that have to
 689                                         # access globale variables in shared
 690                                         # libraries through functions
 691                                         &$make_variant("$2_it","$2_it",
 692                                                       "EXPORT_VAR_AS_FUNCTION",
 693                                                       "FUNCTION");
 694                                         next;
 695                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 696                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 697                                         $def .= "int d2i_$1(void);";
 698                                         $def .= "int i2d_$1(void);";
 699                                         $def .= "int $1_free(void);";
 700                                         $def .= "int $1_new(void);";
 701                                         # Variant for platforms that do not
 702                                         # have to access globale variables
 703                                         # in shared libraries through functions
 704                                         $def .=
 705                                             "#INFO:"
 706                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 707                                                     .join(',',@current_algorithms).";";
 708                                         $def .= "OPENSSL_EXTERN int $1_it;";
 709                                         $def .=
 710                                             "#INFO:"
 711                                                 .join(',',@current_platforms).":"
 712                                                     .join(',',@current_algorithms).";";
 713                                         # Variant for platforms that have to
 714                                         # access globale variables in shared
 715                                         # libraries through functions
 716                                         &$make_variant("$1_it","$1_it",
 717                                                       "EXPORT_VAR_AS_FUNCTION",
 718                                                       "FUNCTION");
 719                                         next;
 720                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 721                                         $def .= "int d2i_$2(void);";
 722                                         $def .= "int i2d_$2(void);";
 723                                         # Variant for platforms that do not
 724                                         # have to access globale variables
 725                                         # in shared libraries through functions
 726                                         $def .=
 727                                             "#INFO:"
 728                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 729                                                     .join(',',@current_algorithms).";";
 730                                         $def .= "OPENSSL_EXTERN int $2_it;";
 731                                         $def .=
 732                                             "#INFO:"
 733                                                 .join(',',@current_platforms).":"
 734                                                     .join(',',@current_algorithms).";";
 735                                         # Variant for platforms that have to
 736                                         # access globale variables in shared
 737                                         # libraries through functions
 738                                         &$make_variant("$2_it","$2_it",
 739                                                       "EXPORT_VAR_AS_FUNCTION",
 740                                                       "FUNCTION");
 741                                         next;
 742                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 743                                         $def .= "int $1_free(void);";
 744                                         $def .= "int $1_new(void);";
 745                                         next;
 746                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 747                                         $def .= "int d2i_$2(void);";
 748                                         $def .= "int i2d_$2(void);";
 749                                         $def .= "int $2_free(void);";
 750                                         $def .= "int $2_new(void);";
 751                                         # Variant for platforms that do not
 752                                         # have to access globale variables
 753                                         # in shared libraries through functions
 754                                         $def .=
 755                                             "#INFO:"
 756                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 757                                                     .join(',',@current_algorithms).";";
 758                                         $def .= "OPENSSL_EXTERN int $2_it;";
 759                                         $def .=
 760                                             "#INFO:"
 761                                                 .join(',',@current_platforms).":"
 762                                                     .join(',',@current_algorithms).";";
 763                                         # Variant for platforms that have to
 764                                         # access globale variables in shared
 765                                         # libraries through functions
 766                                         &$make_variant("$2_it","$2_it",
 767                                                       "EXPORT_VAR_AS_FUNCTION",
 768                                                       "FUNCTION");
 769                                         next;
 770                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 771                                         # Variant for platforms that do not
 772                                         # have to access globale variables
 773                                         # in shared libraries through functions
 774                                         $def .=
 775                                             "#INFO:"
 776                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 777                                                     .join(',',@current_algorithms).";";
 778                                         $def .= "OPENSSL_EXTERN int $1_it;";
 779                                         $def .=
 780                                             "#INFO:"
 781                                                 .join(',',@current_platforms).":"
 782                                                     .join(',',@current_algorithms).";";
 783                                         # Variant for platforms that have to
 784                                         # access globale variables in shared
 785                                         # libraries through functions
 786                                         &$make_variant("$1_it","$1_it",
 787                                                       "EXPORT_VAR_AS_FUNCTION",
 788                                                       "FUNCTION");
 789                                         next;
 790                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 791                                         $def .= "int i2d_$1_NDEF(void);";
 792                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 793                                         next;
 794                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 795                                         $def .= "int $1_print_ctx(void);";
 796                                         next;
 797                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 798                                         $def .= "int $2_print_ctx(void);";
 799                                         next;
 800                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 801                                         next;
 802                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 803                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 804                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 805                                         $def .=
 806                                             "#INFO:"
 807                                                 .join(',',@current_platforms).":"
 808                                                     .join(',',"STDIO",@current_algorithms).";";
 809                                         $def .= "int PEM_read_$1(void);";
 810                                         $def .= "int PEM_write_$1(void);";
 811                                         $def .=
 812                                             "#INFO:"
 813                                                 .join(',',@current_platforms).":"
 814                                                     .join(',',@current_algorithms).";";
 815                                         # Things that are everywhere
 816                                         $def .= "int PEM_read_bio_$1(void);";
 817                                         $def .= "int PEM_write_bio_$1(void);";
 818                                         next;
 819                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 820                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 821                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 822                                         $def .=
 823                                             "#INFO:"
 824                                                 .join(',',@current_platforms).":"
 825                                                     .join(',',"STDIO",@current_algorithms).";";
 826                                         $def .= "int PEM_write_$1(void);";
 827                                         $def .=
 828                                             "#INFO:"
 829                                                 .join(',',@current_platforms).":"
 830                                                     .join(',',@current_algorithms).";";
 831                                         # Things that are everywhere
 832                                         $def .= "int PEM_write_bio_$1(void);";
 833                                         next;
 834                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 835                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 836                                         $def .=
 837                                             "#INFO:"
 838                                                 .join(',',@current_platforms).":"
 839                                                     .join(',',"STDIO",@current_algorithms).";";
 840                                         $def .= "int PEM_read_$1(void);";
 841                                         $def .=
 842                                             "#INFO:"
 843                                                 .join(',',@current_platforms).":"
 844                                                     .join(',',"STDIO",@current_algorithms).";";
 845                                         # Things that are everywhere
 846                                         $def .= "int PEM_read_bio_$1(void);";
 847                                         next;
 848                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 849                                         # Variant for platforms that do not
 850                                         # have to access globale variables
 851                                         # in shared libraries through functions
 852                                         $def .=
 853                                             "#INFO:"
 854                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 855                                                     .join(',',@current_algorithms).";";
 856                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 857                                         $def .=
 858                                             "#INFO:"
 859                                                 .join(',',@current_platforms).":"
 860                                                     .join(',',@current_algorithms).";";
 861                                         # Variant for platforms that have to
 862                                         # access globale variables in shared
 863                                         # libraries through functions
 864                                         &$make_variant("_shadow_$2","_shadow_$2",
 865                                                       "EXPORT_VAR_AS_FUNCTION",
 866                                                       "FUNCTION");
 867                                 } elsif (/^\s*DEPRECATEDIN/) {
 868                                         $parens = count_parens($_);
 869                                         if ($parens == 0) {
 870                                                 $def .= do_deprecated($_,
 871                                                         \@current_platforms,
 872                                                         \@current_algorithms);
 873                                         } else {
 874                                                 $stored_multiline = $_;
 875                                                 $stored_multiline =~ s|\R$||;
 876                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 877                                                 next;
 878                                         }
 879                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 880                                         if (/\{|\/\*|\([^\)]*$/) {
 881                                                 $line = $_;
 882                                         } else {
 883                                                 $def .= $_;
 884                                         }
 885                                 }
 886                         }
 887                 }
 888                 close(IN);
 889                 die "$file: Unmatched tags\n" if $#tag >= 0;
 890
 891                 my $algs;
 892                 my $plays;
 893
 894                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 895                 foreach (split /;/, $def) {
 896                         my $s; my $k = "FUNCTION"; my $p; my $a;
 897                         s/^[\n\s]*//g;
 898                         s/[\n\s]*$//g;
 899                         next if(/\#undef/);
 900                         next if(/typedef\W/);
 901                         next if(/\#define/);
 902
 903                         # Reduce argument lists to empty ()
 904                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 905                         while(/\(.*\)/s) {
 906                                 s/\([^\(\)]+\)/\{\}/gs;
 907                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 908                         }
 909                         # pretend as we didn't use curly braces: {} -> ()
 910                         s/\{\}/\(\)/gs;
 911
 912                         s/STACK_OF\(\)/void/gs;
 913                         s/LHASH_OF\(\)/void/gs;
 914
 915                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 916                         if (/^\#INFO:([^:]*):(.*)$/) {
 917                                 $plats = $1;
 918                                 $algs = $2;
 919                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 920                                 next;
 921                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 922                                 $s = $1;
 923                                 $k = "VARIABLE";
 924                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 925                         } elsif (/TYPEDEF_\w+_OF/s) {
 926                                 next;
 927                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 928                                 $s = $1;                # a function name!
 929                                 print STDERR "DEBUG: found function $s\n" if $debug;
 930                         } elsif (/\(/ and not (/=/)) {
 931                                 print STDERR "File $file: cannot parse: $_;\n";
 932                                 next;
 933                         } else {
 934                                 next;
 935                         }
 936
 937                         $syms{$s} = 1;
 938                         $kind{$s} = $k;
 939
 940                         $p = $plats;
 941                         $a = $algs;
 942
 943                         $platform{$s} =
 944                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 945                         $algorithm{$s} .= ','.$a;
 946
 947                         if (defined($variant{$s})) {
 948                                 foreach $v (split /;/,$variant{$s}) {
 949                                         (my $r, my $p, my $k) = split(/:/,$v);
 950                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 951                                         $syms{$r} = 1;
 952                                         if (!defined($k)) { $k = $kind{$s}; }
 953                                         $kind{$r} = $k."(".$s.")";
 954                                         $algorithm{$r} = $algorithm{$s};
 955                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 956                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 957                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 958                                 }
 959                         }
 960                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 961                 }
 962         }
 963
 964         # Prune the returned symbols
 965
 966         delete $syms{"bn_dump1"};
 967         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 968
 969         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 970         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 971         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 972         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 973
 974         # Info we know about
 975
 976         push @ret, map { $_."\\".&info_string($_,"EXIST",
 977                                               $platform{$_},
 978                                               $kind{$_},
 979                                               $algorithm{$_}) } keys %syms;
 980
 981         if (keys %unknown_algorithms) {
 982                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 983                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 984         }
 985         return(@ret);
 986 }
 987
 988 # Param: string of comma-separated platform-specs.
 989 sub reduce_platforms
 990 {
 991         my ($platforms) = @_;
 992         my $pl = defined($platforms) ? $platforms : "";
 993         my %p = map { $_ => 0 } split /,/, $pl;
 994         my $ret;
 995
 996         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 997             if $debug;
 998         # We do this, because if there's code like the following, it really
 999         # means the function exists in all cases and should therefore be
1000         # everywhere.  By increasing and decreasing, we may attain 0:
1001         #
1002         # ifndef WIN16
1003         #    int foo();
1004         # else
1005         #    int _fat foo();
1006         # endif
1007         foreach $platform (split /,/, $pl) {
1008                 if ($platform =~ /^!(.*)$/) {
1009                         $p{$1}--;
1010                 } else {
1011                         $p{$platform}++;
1012                 }
1013         }
1014         foreach $platform (keys %p) {
1015                 if ($p{$platform} == 0) { delete $p{$platform}; }
1016         }
1017
1018         delete $p{""};
1019
1020         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1021         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1022             if $debug;
1023         return $ret;
1024 }
1025
1026 sub info_string
1027 {
1028         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1029
1030         my %a = defined($algorithms) ?
1031             map { $_ => 1 } split /,/, $algorithms : ();
1032         my $k = defined($kind) ? $kind : "FUNCTION";
1033         my $ret;
1034         my $p = &reduce_platforms($platforms);
1035
1036         delete $a{""};
1037
1038         $ret = $exist;
1039         $ret .= ":".$p;
1040         $ret .= ":".$k;
1041         $ret .= ":".join(',',sort keys %a);
1042         return $ret;
1043 }
1044
1045 sub maybe_add_info
1046 {
1047         (my $name, *nums, my @symbols) = @_;
1048         my $sym;
1049         my $new_info = 0;
1050         my %syms=();
1051
1052         foreach $sym (@symbols) {
1053                 (my $s, my $i) = split /\\/, $sym;
1054                 if (defined($nums{$s})) {
1055                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1056                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1057                         if (!defined($dummy) || $i ne $dummy) {
1058                                 $nums{$s} = $n."\\".$vers."\\".$i;
1059                                 $new_info++;
1060                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1061                         }
1062                 }
1063                 $syms{$s} = 1;
1064         }
1065
1066         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1067         foreach $sym (@s) {
1068                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1069                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1070                         $new_info++;
1071                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1072                 }
1073         }
1074         if ($new_info) {
1075                 print STDERR "$name: $new_info old symbols have updated info\n";
1076                 if (!$do_rewrite) {
1077                         print STDERR "You should do a rewrite to fix this.\n";
1078                 }
1079         } else {
1080         }
1081 }
1082
1083 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1084 sub is_valid
1085 {
1086         my ($keywords_txt,$platforms) = @_;
1087         my (@keywords) = split /,/,$keywords_txt;
1088         my ($falsesum, $truesum) = (0, 1);
1089
1090         # Param: one keyword
1091         sub recognise
1092         {
1093                 my ($keyword,$platforms) = @_;
1094
1095                 if ($platforms) {
1096                         # platforms
1097                         if ($keyword eq "VMS" && $VMS) { return 1; }
1098                         if ($keyword eq "WIN32" && $W32) { return 1; }
1099                         if ($keyword eq "_WIN32" && $W32) { return 1; }
1100                         if ($keyword eq "WINNT" && $NT) { return 1; }
1101                         # Special platforms:
1102                         # EXPORT_VAR_AS_FUNCTION means that global variables
1103                         # will be represented as functions.
1104                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && $W32) {
1105                                 return 1;
1106                         }
1107                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1108                         return 0;
1109                 } else {
1110                         # algorithms
1111                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1112
1113                         # Nothing recognise as true
1114                         return 1;
1115                 }
1116         }
1117
1118         foreach $k (@keywords) {
1119                 if ($k =~ /^!(.*)$/) {
1120                         $falsesum += &recognise($1,$platforms);
1121                 } else {
1122                         $truesum *= &recognise($k,$platforms);
1123                 }
1124         }
1125         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1126         return (!$falsesum) && $truesum;
1127 }
1128
1129 sub print_test_file
1130 {
1131         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1132         my $n = 1; my @e; my @r;
1133         my $sym; my $prev = ""; my $prefSSLeay;
1134
1135         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1136         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1137         @symbols=((sort @e),(sort @r));
1138
1139         foreach $sym (@symbols) {
1140                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1141                 my $v = 0;
1142                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1143                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1144                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1145                 if (!defined($nums{$s})) {
1146                         print STDERR "Warning: $s does not have a number assigned\n"
1147                             if(!$do_update);
1148                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1149                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1150                         if ($prev eq $s2) {
1151                                 print OUT "\t/* The following has already appeared previously */\n";
1152                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1153                         }
1154                         $prev = $s2;    # To warn about duplicates...
1155
1156                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1157                         if ($v) {
1158                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1159                         } else {
1160                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1161                         }
1162                 }
1163         }
1164 }
1165
1166 sub get_version
1167 {
1168    return $config{version};
1169 }
1170
1171 sub print_def_file
1172 {
1173         (*OUT,my $name,*nums,my @symbols)=@_;
1174         my $n = 1; my @e; my @r; my @v; my $prev="";
1175         my $liboptions="";
1176         my $libname = $name;
1177         my $http_vendor = 'www.openssl.org/';
1178         my $version = get_version();
1179         my $what = "OpenSSL: implementation of Secure Socket Layer";
1180         my $description = "$what $version, $name - http://$http_vendor";
1181         my $prevsymversion = "", $prevprevsymversion = "";
1182         # For VMS
1183         my $prevnum = 0;
1184         my $symvtextcount = 0;
1185
1186         if ($W32)
1187                 { $libname.="32"; }
1188
1189         if ($W32)
1190                 {
1191                 print OUT <<"EOF";
1192 ;
1193 ; Definition file for the DLL version of the $name library from OpenSSL
1194 ;
1195
1196 LIBRARY         $libname        $liboptions
1197
1198 EOF
1199
1200                 print "EXPORTS\n";
1201                 }
1202         elsif ($VMS)
1203                 {
1204                 print OUT <<"EOF";
1205 CASE_SENSITIVE=YES
1206 SYMBOL_VECTOR=(-
1207 EOF
1208                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1209                 }
1210
1211         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1212         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1213         if ($VMS) {
1214             # VMS needs to have the symbols on slot number order
1215             @symbols=(map { $_->[1] }
1216                       sort { $a->[0] <=> $b->[0] }
1217                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1218                             die "Error: $s doesn't have a number assigned\n"
1219                                 if !defined($nums{$s});
1220                             (my $n, my @rest) = split /\\/, $nums{$s};
1221                             [ $n, $_ ] } (@e, @r, @v));
1222         } else {
1223             @symbols=((sort @e),(sort @r), (sort @v));
1224         }
1225
1226         my ($baseversion, $currversion) = get_openssl_version();
1227         my $thisversion;
1228         do {
1229                 if (!defined($thisversion)) {
1230                         $thisversion = $baseversion;
1231                 } else {
1232                         $thisversion = get_next_version($thisversion);
1233                 }
1234                 foreach $sym (@symbols) {
1235                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1236                         my $v = 0;
1237                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1238                         if (!defined($nums{$s})) {
1239                                 die "Error: $s does not have a number assigned\n"
1240                                         if(!$do_update);
1241                         } else {
1242                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1243                                 next if $symversion ne $thisversion;
1244                                 my %pf = ();
1245                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1246                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1247                                 if (is_valid($p,1) && is_valid($a,0)) {
1248                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1249                                         if ($prev eq $s2) {
1250                                                 print STDERR "Warning: Symbol '",$s2,
1251                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1252                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1253                                         }
1254                                         $prev = $s2;    # To warn about duplicates...
1255                                         if($linux) {
1256                                                 if ($symversion ne $prevsymversion) {
1257                                                         if ($prevsymversion ne "") {
1258                                                                 if ($prevprevsymversion ne "") {
1259                                                                         print OUT "} OPENSSL_"
1260                                                                                                 ."$prevprevsymversion;\n\n";
1261                                                                 } else {
1262                                                                         print OUT "};\n\n";
1263                                                                 }
1264                                                         }
1265                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1266                                                         $prevprevsymversion = $prevsymversion;
1267                                                         $prevsymversion = $symversion;
1268                                                 }
1269                                                 print OUT "        $s2;\n";
1270                                         } elsif ($VMS) {
1271                                             while(++$prevnum < $n) {
1272                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1273                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1274                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1275                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1276                                                 }
1277                                                 if ($symvtextcount == 16) {
1278                                                     # Take away first comma
1279                                                     $symline =~ s/,//;
1280                                                 }
1281                                                 print OUT $symline;
1282                                                 $symvtextcount += length($symline) - 2;
1283                                             }
1284                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1285                                             my $symtype=
1286                                                 $v ? "DATA" : "PROCEDURE";
1287                                             my $symline=
1288                                                 ($s_uc ne $s
1289                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1290                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1291                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1292                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1293                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1294                                             }
1295                                             if ($symvtextcount == 16) {
1296                                                 # Take away first comma
1297                                                 $symline =~ s/,//;
1298                                             }
1299                                             print OUT $symline;
1300                                             $symvtextcount += length($symline) - 2;
1301                                         } elsif($v) {
1302                                                 printf OUT "    %s%-39s DATA\n",
1303                                                                 ($W32)?"":"_",$s2;
1304                                         } else {
1305                                                 printf OUT "    %s%s\n",
1306                                                                 ($W32)?"":"_",$s2;
1307                                         }
1308                                 }
1309                         }
1310                 }
1311         } while ($thisversion ne $currversion);
1312         if ($linux) {
1313                 if ($prevprevsymversion ne "") {
1314                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1315                 } else {
1316                         print OUT "    local: *;\n};\n\n";
1317                 }
1318         } elsif ($VMS) {
1319             print OUT ")\n";
1320             (my $libvmaj, my $libvmin, my $libvedit) =
1321                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1322             # The reason to multiply the edit number with 100 is to make space
1323             # for the possibility that we want to encode the patch letters
1324             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1325         }
1326         printf OUT "\n";
1327 }
1328
1329 sub load_numbers
1330 {
1331         my($name)=@_;
1332         my(@a,%ret);
1333         my $prevversion;
1334
1335         $max_num = 0;
1336         $num_noinfo = 0;
1337         $prev = "";
1338         $prev_cnt = 0;
1339
1340         my ($baseversion, $currversion) = get_openssl_version();
1341
1342         open(IN,"<$name") || die "unable to open $name:$!\n";
1343         while (<IN>) {
1344                 s|\R$||;        # Better chomp
1345                 s/#.*$//;
1346                 next if /^\s*$/;
1347                 @a=split;
1348                 if (defined $ret{$a[0]}) {
1349                         # This is actually perfectly OK
1350                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1351                 }
1352                 if ($max_num > $a[1]) {
1353                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1354                 }
1355                 elsif ($max_num == $a[1]) {
1356                         # This is actually perfectly OK
1357                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1358                         if ($a[0] eq $prev) {
1359                                 $prev_cnt++;
1360                                 $a[0] .= "{$prev_cnt}";
1361                         }
1362                 }
1363                 else {
1364                         $prev_cnt = 0;
1365                 }
1366                 if ($#a < 2) {
1367                         # Existence will be proven later, in do_defs
1368                         $ret{$a[0]}=$a[1];
1369                         $num_noinfo++;
1370                 } else {
1371                         #Sanity check the version number
1372                         if (defined $prevversion) {
1373                                 check_version_lte($prevversion, $a[2]);
1374                         }
1375                         check_version_lte($a[2], $currversion);
1376                         $prevversion = $a[2];
1377                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1378                 }
1379                 $max_num = $a[1] if $a[1] > $max_num;
1380                 $prev=$a[0];
1381         }
1382         if ($num_noinfo) {
1383                 print STDERR "Warning: $num_noinfo symbols were without info.";
1384                 if ($do_rewrite) {
1385                         printf STDERR "  The rewrite will fix this.\n";
1386                 } else {
1387                         printf STDERR "  You should do a rewrite to fix this.\n";
1388                 }
1389         }
1390         close(IN);
1391         return(%ret);
1392 }
1393
1394 sub parse_number
1395 {
1396         (my $str, my $what) = @_;
1397         (my $n, my $v, my $i) = split(/\\/,$str);
1398         if ($what eq "n") {
1399                 return $n;
1400         } else {
1401                 return $i;
1402         }
1403 }
1404
1405 sub rewrite_numbers
1406 {
1407         (*OUT,$name,*nums,@symbols)=@_;
1408         my $thing;
1409
1410         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1411         my $r; my %r; my %rsyms;
1412         foreach $r (@r) {
1413                 (my $s, my $i) = split /\\/, $r;
1414                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1415                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1416                 $r{$a} = $s."\\".$i;
1417                 $rsyms{$s} = 1;
1418         }
1419
1420         my %syms = ();
1421         foreach $_ (@symbols) {
1422                 (my $n, my $i) = split /\\/;
1423                 $syms{$n} = 1;
1424         }
1425
1426         my @s=sort {
1427             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1428             || $a cmp $b
1429         } keys %nums;
1430         foreach $sym (@s) {
1431                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1432                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1433                 next if defined($rsyms{$sym});
1434                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1435                 $i="NOEXIST::FUNCTION:"
1436                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1437                 my $s2 = $sym;
1438                 $s2 =~ s/\{[0-9]+\}$//;
1439                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1440                 if (exists $r{$sym}) {
1441                         (my $s, $i) = split /\\/,$r{$sym};
1442                         my $s2 = $s;
1443                         $s2 =~ s/\{[0-9]+\}$//;
1444                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1445                 }
1446         }
1447 }
1448
1449 sub update_numbers
1450 {
1451         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1452         my $new_syms = 0;
1453         my $basevers;
1454         my $vers;
1455
1456         ($basevers, $vers) = get_openssl_version();
1457
1458         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1459         my $r; my %r; my %rsyms;
1460         foreach $r (@r) {
1461                 (my $s, my $i) = split /\\/, $r;
1462                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1463                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1464                 $r{$a} = $s."\\".$i;
1465                 $rsyms{$s} = 1;
1466         }
1467
1468         foreach $sym (@symbols) {
1469                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1470                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1471                 next if defined($rsyms{$sym});
1472                 die "ERROR: Symbol $sym had no info attached to it."
1473                     if $i eq "";
1474                 if (!exists $nums{$s}) {
1475                         $new_syms++;
1476                         my $s2 = $s;
1477                         $s2 =~ s/\{[0-9]+\}$//;
1478                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1479                         if (exists $r{$s}) {
1480                                 ($s, $i) = split /\\/,$r{$s};
1481                                 $s =~ s/\{[0-9]+\}$//;
1482                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1483                         }
1484                 }
1485         }
1486         if($new_syms) {
1487                 print STDERR "$name: Added $new_syms new symbols\n";
1488         } else {
1489                 print STDERR "$name: No new symbols added\n";
1490         }
1491 }
1492
1493 sub check_existing
1494 {
1495         (*nums, my @symbols)=@_;
1496         my %existing; my @remaining;
1497         @remaining=();
1498         foreach $sym (@symbols) {
1499                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1500                 $existing{$s}=1;
1501         }
1502         foreach $sym (keys %nums) {
1503                 if (!exists $existing{$sym}) {
1504                         push @remaining, $sym;
1505                 }
1506         }
1507         if(@remaining) {
1508                 print STDERR "The following symbols do not seem to exist:\n";
1509                 foreach $sym (@remaining) {
1510                         print STDERR "\t",$sym,"\n";
1511                 }
1512         }
1513 }
1514
1515 sub count_parens
1516 {
1517         my $line = shift(@_);
1518
1519         my $open = $line =~ tr/\(//;
1520         my $close = $line =~ tr/\)//;
1521
1522         return $open - $close;
1523 }
1524
1525 #Parse opensslv.h to get the current version number. Also work out the base
1526 #version, i.e. the lowest version number that is binary compatible with this
1527 #version
1528 sub get_openssl_version()
1529 {
1530         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1531         open (IN, "$fn") || die "Can't open opensslv.h";
1532
1533         while(<IN>) {
1534                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1535                         my $suffix = $2;
1536                         (my $baseversion = $1) =~ s/\./_/g;
1537                         close IN;
1538                         return ($baseversion."0", $baseversion.$suffix);
1539                 }
1540         }
1541         die "Can't find OpenSSL version number\n";
1542 }
1543
1544 #Given an OpenSSL version number, calculate the next version number. If the
1545 #version number gets to a.b.czz then we go to a.b.(c+1)
1546 sub get_next_version()
1547 {
1548         my $thisversion = shift;
1549
1550         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1551
1552         if ($letter eq "zz") {
1553                 my $lastnum = substr($base, -1);
1554                 return substr($base, 0, length($base)-1).(++$lastnum);
1555         }
1556         return $base.get_next_letter($letter);
1557 }
1558
1559 #Given the letters off the end of an OpenSSL version string, calculate what
1560 #the letters for the next release would be.
1561 sub get_next_letter()
1562 {
1563         my $thisletter = shift;
1564         my $baseletter = "";
1565         my $endletter;
1566
1567         if ($thisletter eq "") {
1568                 return "a";
1569         }
1570         if ((length $thisletter) > 1) {
1571                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1572         } else {
1573                 $endletter = $thisletter;
1574         }
1575
1576         if ($endletter eq "z") {
1577                 return $thisletter."a";
1578         } else {
1579                 return $baseletter.(++$endletter);
1580         }
1581 }
1582
1583 #Check if a version is less than or equal to the current version. Its a fatal
1584 #error if not. They must also only differ in letters, or the last number (i.e.
1585 #the first two numbers must be the same)
1586 sub check_version_lte()
1587 {
1588         my ($testversion, $currversion) = @_;
1589         my $lentv;
1590         my $lencv;
1591         my $cvbase;
1592
1593         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1594         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1595
1596         #Die if we can't parse the version numbers or they don't look sane
1597         die "Invalid version number: $testversion and $currversion\n"
1598                 if (!defined($cvnums) || !defined($tvnums)
1599                         || length($cvnums) != 5
1600                         || length($tvnums) != 5);
1601
1602         #If the base versions (without letters) don't match check they only differ
1603         #in the last number
1604         if ($cvnums ne $tvnums) {
1605                 die "Invalid version number: $testversion "
1606                         ."for current version $currversion\n"
1607                         if (substr($cvnums, -1) < substr($tvnums, -1)
1608                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1609                 return;
1610         }
1611         #If we get here then the base version (i.e. the numbers) are the same - they
1612         #only differ in the letters
1613
1614         $lentv = length $testversion;
1615         $lencv = length $currversion;
1616
1617         #If the testversion has more letters than the current version then it must
1618         #be later (or malformed)
1619         if ($lentv > $lencv) {
1620                 die "Invalid version number: $testversion "
1621                         ."is greater than $currversion\n";
1622         }
1623
1624         #Get the last letter from the current version
1625         my ($cvletter) = $currversion =~ /([a-z])$/;
1626         if (defined $cvletter) {
1627                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1628         } else {
1629                 $cvbase = $currversion;
1630         }
1631         die "Unable to parse version number $currversion" if (!defined $cvbase);
1632         my $tvbase;
1633         my ($tvletter) = $testversion =~ /([a-z])$/;
1634         if (defined $tvletter) {
1635                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1636         } else {
1637                 $tvbase = $testversion;
1638         }
1639         die "Unable to parse version number $testversion" if (!defined $tvbase);
1640
1641         if ($lencv > $lentv) {
1642                 #If current version has more letters than testversion then testversion
1643                 #minus the final letter must be a substring of the current version
1644                 die "Invalid version number $testversion "
1645                         ."is greater than $currversion or is invalid\n"
1646                         if (index($cvbase, $tvbase) != 0);
1647         } else {
1648                 #If both versions have the same number of letters then they must be
1649                 #equal up to the last letter, and the last letter in testversion must
1650                 #be less than or equal to the last letter in current version.
1651                 die "Invalid version number $testversion "
1652                         ."is greater than $currversion\n"
1653                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1654         }
1655 }
1656
1657 sub do_deprecated()
1658 {
1659         my ($decl, $plats, $algs) = @_;
1660         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1661             or die "Bad DEPRECTEDIN: $decl\n";
1662         my $info1 .= "#INFO:";
1663         $info1 .= join(',', @{$plats}) . ":";
1664         my $info2 = $info1;
1665         $info1 .= join(',',@{$algs}, $1) . ";";
1666         $info2 .= join(',',@{$algs}) . ";";
1667         return $info1 . $2 . ";" . $info2;
1668 }