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 $VMSVAX=0;
  67 my $VMSNonVAX=0;
  68 my $VMS=0;
  69 my $W32=0;
  70 my $NT=0;
  71 my $linux=0;
  72 # Set this to make typesafe STACK definitions appear in DEF
  73 my $safe_stack_def = 0;
  74
  75 my @known_platforms = ( "__FreeBSD__", "PERL5",
  76                         "EXPORT_VAR_AS_FUNCTION", "ZLIB", "_WIN32"
  77                         );
  78 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  79 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  80                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  81                          "SHA256", "SHA512", "RMD160",
  82                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  83                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  84                          "SCRYPT", "CHACHA", "POLY1305", "BLAKE2",
  85                          # EC_NISTP_64_GCC_128
  86                          "EC_NISTP_64_GCC_128",
  87                          # Envelope "algorithms"
  88                          "EVP", "X509", "ASN1_TYPEDEFS",
  89                          # Helper "algorithms"
  90                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  91                          "LOCKING",
  92                          # External "algorithms"
  93                          "FP_API", "STDIO", "SOCK", "DGRAM",
  94                          "CRYPTO_MDEBUG",
  95                          # Engines
  96                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  97                          # Entropy Gathering
  98                          "EGD",
  99                          # Certificate Transparency
 100                          "CT",
 101                          # RFC3779
 102                          "RFC3779",
 103                          # TLS
 104                          "PSK", "SRP", "HEARTBEATS",
 105                          # CMS
 106                          "CMS",
 107                          "OCSP",
 108                          # CryptoAPI Engine
 109                          "CAPIENG",
 110                          # SSL methods
 111                          "SSL3_METHOD", "TLS1_METHOD", "TLS1_1_METHOD", "TLS1_2_METHOD", "DTLS1_METHOD", "DTLS1_2_METHOD",
 112                          # NEXTPROTONEG
 113                          "NEXTPROTONEG",
 114                          # Deprecated functions
 115                          "DEPRECATEDIN_0_9_8",
 116                          "DEPRECATEDIN_1_0_0",
 117                          "DEPRECATEDIN_1_1_0",
 118                          # SCTP
 119                          "SCTP",
 120                          # SRTP
 121                          "SRTP",
 122                          # SSL TRACE
 123                          "SSL_TRACE",
 124                          # Unit testing
 125                          "UNIT_TEST",
 126                          # User Interface
 127                          "UI",
 128                          #
 129                          "TS",
 130                          # OCB mode
 131                          "OCB",
 132                          "CMAC",
 133                          # APPLINK (win build feature?)
 134                          "APPLINK"
 135                      );
 136
 137 my %disabled_algorithms;
 138
 139 foreach (@known_algorithms) {
 140     $disabled_algorithms{$_} = 0;
 141 }
 142 # disabled by default
 143 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 144
 145 my $zlib;
 146
 147 foreach (@ARGV, split(/ /, $config{options}))
 148         {
 149         $debug=1 if $_ eq "debug";
 150         $W32=1 if $_ eq "32";
 151         die "win16 not supported" if $_ eq "16";
 152         if($_ eq "NT") {
 153                 $W32 = 1;
 154                 $NT = 1;
 155         }
 156         if ($_ eq "VMS-VAX") {
 157                 $VMS=1;
 158                 $VMSVAX=1;
 159         }
 160         if ($_ eq "VMS-NonVAX") {
 161                 $VMS=1;
 162                 $VMSNonVAX=1;
 163         }
 164         if ($_ eq "linux") {
 165                 $linux=1;
 166         }
 167         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
 168         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 169                          || $_ eq "enable-zlib-dynamic") {
 170                 $zlib = 1;
 171         }
 172
 173         $do_ssl=1 if $_ eq "libssl";
 174         if ($_ eq "ssl") {
 175                 $do_ssl=1;
 176                 $libname=$_
 177         }
 178         $do_crypto=1 if $_ eq "libcrypto";
 179         if ($_ eq "crypto") {
 180                 $do_crypto=1;
 181                 $libname=$_;
 182         }
 183         $do_update=1 if $_ eq "update";
 184         $do_rewrite=1 if $_ eq "rewrite";
 185         $do_ctest=1 if $_ eq "ctest";
 186         $do_ctestall=1 if $_ eq "ctestall";
 187         $do_checkexist=1 if $_ eq "exist";
 188         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 189                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 190                 foreach (keys %disabled_algorithms) {
 191                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 192                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 193                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 194                         }
 195                 }
 196         }
 197         if (/^no-deprecated$/) {
 198                 foreach (keys %disabled_algorithms) {
 199                         if (/^DEPRECATEDIN_/) {
 200                                 $disabled_algorithms{$_} = 1;
 201                         }
 202                 }
 203         }
 204         elsif (/^(enable|disable|no)-(.*)$/) {
 205                 my $alg = uc $2;
 206         $alg =~ tr/-/_/;
 207                 if (exists $disabled_algorithms{$alg}) {
 208                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 209                 }
 210         }
 211
 212         }
 213
 214 if (!$libname) {
 215         if ($do_ssl) {
 216                 $libname="LIBSSL";
 217         }
 218         if ($do_crypto) {
 219                 $libname="LIBCRYPTO";
 220         }
 221 }
 222
 223 # If no platform is given, assume WIN32
 224 if ($W32 + $VMS + $linux == 0) {
 225         $W32 = 1;
 226 }
 227 die "Please, only one platform at a time"
 228     if ($W32 + $VMS + $linux > 1);
 229
 230 if (!$do_ssl && !$do_crypto)
 231         {
 232         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 233         exit(1);
 234         }
 235
 236 %ssl_list=&load_numbers($ssl_num);
 237 $max_ssl = $max_num;
 238 %crypto_list=&load_numbers($crypto_num);
 239 $max_crypto = $max_num;
 240
 241 my $ssl="include/openssl/ssl.h";
 242 $ssl.=" include/openssl/tls1.h";
 243 $ssl.=" include/openssl/srtp.h";
 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/openssl/crypto.h";
 248 $crypto.=" include/internal/o_dir.h";
 249 $crypto.=" include/internal/o_str.h";
 250 $crypto.=" include/internal/err.h";
 251 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 252 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 253 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 254 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 255 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 256 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 257 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 258 $crypto.=" include/openssl/whrlpool.h" ;
 259 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 260 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 261 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 262 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 263 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 264 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 265 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 266 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 267 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 268
 269 $crypto.=" include/openssl/bn.h";
 270 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 271 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 272 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 273 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 274 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 275 $crypto.=" include/openssl/cmac.h" ;
 276
 277 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 278 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 279 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 280 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 281 $crypto.=" include/internal/dso.h" ; # unless $no_dso;
 282 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 283 $crypto.=" include/openssl/conf.h";
 284 $crypto.=" include/openssl/txt_db.h";
 285
 286 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 287 $crypto.=" include/openssl/objects.h";
 288 $crypto.=" include/openssl/pem.h";
 289 #$crypto.=" include/openssl/meth.h";
 290 $crypto.=" include/openssl/asn1.h";
 291 $crypto.=" include/openssl/asn1t.h";
 292 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 293 $crypto.=" include/openssl/pkcs7.h";
 294 $crypto.=" include/openssl/pkcs12.h";
 295 $crypto.=" include/openssl/x509.h";
 296 $crypto.=" include/openssl/x509_vfy.h";
 297 $crypto.=" include/openssl/x509v3.h";
 298 $crypto.=" include/openssl/ts.h";
 299 $crypto.=" include/openssl/rand.h";
 300 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 301 $crypto.=" include/openssl/ocsp.h";
 302 $crypto.=" include/openssl/ui.h";
 303 #$crypto.=" include/openssl/store.h";
 304 $crypto.=" include/openssl/cms.h";
 305 $crypto.=" include/openssl/srp.h";
 306 $crypto.=" include/openssl/modes.h";
 307 $crypto.=" include/openssl/async.h";
 308 $crypto.=" include/openssl/ct.h";
 309 $crypto.=" include/openssl/kdf.h";
 310
 311 my $symhacks="include/openssl/symhacks.h";
 312
 313 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 314 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 315
 316 if ($do_update) {
 317
 318 if ($do_ssl == 1) {
 319
 320         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 321         if ($do_rewrite == 1) {
 322                 open(OUT, ">$ssl_num");
 323                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 324         } else {
 325                 open(OUT, ">>$ssl_num");
 326         }
 327         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 328         close OUT;
 329 }
 330
 331 if($do_crypto == 1) {
 332
 333         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 334         if ($do_rewrite == 1) {
 335                 open(OUT, ">$crypto_num");
 336                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 337         } else {
 338                 open(OUT, ">>$crypto_num");
 339         }
 340         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 341         close OUT;
 342 }
 343
 344 } elsif ($do_checkexist) {
 345         &check_existing(*ssl_list, @ssl_symbols)
 346                 if $do_ssl == 1;
 347         &check_existing(*crypto_list, @crypto_symbols)
 348                 if $do_crypto == 1;
 349 } elsif ($do_ctest || $do_ctestall) {
 350
 351         print <<"EOF";
 352
 353 /* Test file to check all DEF file symbols are present by trying
 354  * to link to all of them. This is *not* intended to be run!
 355  */
 356
 357 int main()
 358 {
 359 EOF
 360         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 361                 if $do_ssl == 1;
 362
 363         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 364                 if $do_crypto == 1;
 365
 366         print "}\n";
 367
 368 } else {
 369
 370         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 371                 if $do_ssl == 1;
 372
 373         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 374                 if $do_crypto == 1;
 375
 376 }
 377
 378
 379 sub do_defs
 380 {
 381         my($name,$files,$symhacksfile)=@_;
 382         my $file;
 383         my @ret;
 384         my %syms;
 385         my %platform;           # For anything undefined, we assume ""
 386         my %kind;               # For anything undefined, we assume "FUNCTION"
 387         my %algorithm;          # For anything undefined, we assume ""
 388         my %variant;
 389         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 390                                 # is the same name as the original.
 391         my $cpp;
 392         my %unknown_algorithms = ();
 393         my $parens = 0;
 394
 395         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 396                 {
 397                 my $fn = catfile($config{sourcedir},$file);
 398                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 399                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
 400                 my $line = "", my $def= "";
 401                 my %tag = (
 402                         (map { $_ => 0 } @known_platforms),
 403                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 404                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 405                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 406                         NOPROTO         => 0,
 407                         PERL5           => 0,
 408                         _WINDLL         => 0,
 409                         CONST_STRICT    => 0,
 410                         TRUE            => 1,
 411                 );
 412                 my $symhacking = $file eq $symhacksfile;
 413                 my @current_platforms = ();
 414                 my @current_algorithms = ();
 415
 416                 # params: symbol, alias, platforms, kind
 417                 # The reason to put this subroutine in a variable is that
 418                 # it will otherwise create it's own, unshared, version of
 419                 # %tag and %variant...
 420                 my $make_variant = sub
 421                 {
 422                         my ($s, $a, $p, $k) = @_;
 423                         my ($a1, $a2);
 424
 425                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 426                         if (defined($p))
 427                         {
 428                                 $a1 = join(",",$p,
 429                                            grep(!/^$/,
 430                                                 map { $tag{$_} == 1 ? $_ : "" }
 431                                                 @known_platforms));
 432                         }
 433                         else
 434                         {
 435                                 $a1 = join(",",
 436                                            grep(!/^$/,
 437                                                 map { $tag{$_} == 1 ? $_ : "" }
 438                                                 @known_platforms));
 439                         }
 440                         $a2 = join(",",
 441                                    grep(!/^$/,
 442                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 443                                         @known_ossl_platforms));
 444                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 445                         if ($a1 eq "") { $a1 = $a2; }
 446                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 447                         if ($a eq $s)
 448                         {
 449                                 if (!defined($variant_cnt{$s}))
 450                                 {
 451                                         $variant_cnt{$s} = 0;
 452                                 }
 453                                 $variant_cnt{$s}++;
 454                                 $a .= "{$variant_cnt{$s}}";
 455                         }
 456                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 457                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 458                         if (!grep(/^$togrep$/,
 459                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 460                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 461                                 $variant{$s} .= $toadd;
 462                         }
 463                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 464                 };
 465
 466                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 467                 while(<IN>) {
 468                         if($parens > 0) {
 469                                 #Inside a DEPRECATEDIN
 470                                 $stored_multiline .= $_;
 471                                 $stored_multiline =~ s|\R$||; # Better chomp
 472                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 473                                 $parens = count_parens($stored_multiline);
 474                                 if ($parens == 0) {
 475                                         $def .= do_deprecated($stored_multiline,
 476                                                         \@current_platforms,
 477                                                         \@current_algorithms);
 478                                 }
 479                                 next;
 480                         }
 481                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 482                                 {
 483                                 undef @tag;
 484                                 last;
 485                                 }
 486                         if ($line ne '') {
 487                                 $_ = $line . $_;
 488                                 $line = '';
 489                         }
 490
 491                         if (/\\$/) {
 492                                 $line = $`; # keep what was before the backslash
 493                                 next;
 494                         }
 495
 496                         if(/\/\*/) {
 497                                 if (not /\*\//) {       # multiline comment...
 498                                         $line = $_;     # ... just accumulate
 499                                         next;
 500                                 } else {
 501                                         s/\/\*.*?\*\///gs;# wipe it
 502                                 }
 503                         }
 504
 505                         if ($cpp) {
 506                                 $cpp++ if /^#\s*if/;
 507                                 $cpp-- if /^#\s*endif/;
 508                                 next;
 509                         }
 510                         if (/^#.*ifdef.*cplusplus/) {
 511                                 $cpp = 1;
 512                                 next;
 513                         }
 514
 515                         s/{[^{}]*}//gs;                      # ignore {} blocks
 516                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 517                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 518                         if (/^\#\s*ifndef\s+(.*)/) {
 519                                 push(@tag,"-");
 520                                 push(@tag,$1);
 521                                 $tag{$1}=-1;
 522                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 523                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 524                                 push(@tag,"-");
 525                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 526                                         my $tmp_1 = $1;
 527                                         my $tmp_;
 528                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 529                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 530                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 531                                                 push(@tag,$1);
 532                                                 $tag{$1}=-1;
 533                                         }
 534                                 } else {
 535                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 536                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 537                                         push(@tag,$1);
 538                                         $tag{$1}=-1;
 539                                 }
 540                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 541                                 push(@tag,"-");
 542                                 push(@tag,$1);
 543                                 $tag{$1}=1;
 544                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 545                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 546                                 push(@tag,"-");
 547                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 548                                         my $tmp_1 = $1;
 549                                         my $tmp_;
 550                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 551                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 552                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 553                                                 push(@tag,$1);
 554                                                 $tag{$1}=1;
 555                                         }
 556                                 } else {
 557                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 558                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 559                                         push(@tag,$1);
 560                                         $tag{$1}=1;
 561                                 }
 562                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 563                                 my $tag_i = $#tag;
 564                                 while($tag[$tag_i] ne "-") {
 565                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 566                                                 $tag{$tag[$tag_i]}=2;
 567                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 568                                         }
 569                                         $tag_i--;
 570                                 }
 571                         } elsif (/^\#\s*endif/) {
 572                                 my $tag_i = $#tag;
 573                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 574                                         my $t=$tag[$tag_i];
 575                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 576                                         if ($tag{$t}==2) {
 577                                                 $tag{$t}=-1;
 578                                         } else {
 579                                                 $tag{$t}=0;
 580                                         }
 581                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 582                                         pop(@tag);
 583                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 584                                                 $t=$1;
 585                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 586                                                 $t=$1;
 587                                         } else {
 588                                                 $t="";
 589                                         }
 590                                         if ($t ne ""
 591                                             && !grep(/^$t$/, @known_algorithms)) {
 592                                                 $unknown_algorithms{$t} = 1;
 593                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 594                                         }
 595                                         $tag_i--;
 596                                 }
 597                                 pop(@tag);
 598                         } elsif (/^\#\s*else/) {
 599                                 my $tag_i = $#tag;
 600                                 die "$file unmatched else\n" if $tag_i < 0;
 601                                 while($tag[$tag_i] ne "-") {
 602                                         my $t=$tag[$tag_i];
 603                                         $tag{$t}= -$tag{$t};
 604                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 605                                         $tag_i--;
 606                                 }
 607                         } elsif (/^\#\s*if\s+1/) {
 608                                 push(@tag,"-");
 609                                 # Dummy tag
 610                                 push(@tag,"TRUE");
 611                                 $tag{"TRUE"}=1;
 612                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 613                         } elsif (/^\#\s*if\s+0/) {
 614                                 push(@tag,"-");
 615                                 # Dummy tag
 616                                 push(@tag,"TRUE");
 617                                 $tag{"TRUE"}=-1;
 618                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 619                         } elsif (/^\#\s*if\s+/) {
 620                                 #Some other unrecognized "if" style
 621                                 push(@tag,"-");
 622                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 623                                  && $symhacking && $tag{'TRUE'} != -1) {
 624                                 # This is for aliasing.  When we find an alias,
 625                                 # we have to invert
 626                                 &$make_variant($1,$2);
 627                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 628                         }
 629                         if (/^\#/) {
 630                                 @current_platforms =
 631                                     grep(!/^$/,
 632                                          map { $tag{$_} == 1 ? $_ :
 633                                                    $tag{$_} == -1 ? "!".$_  : "" }
 634                                          @known_platforms);
 635                                 push @current_platforms
 636                                     , grep(!/^$/,
 637                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 638                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 639                                            @known_ossl_platforms);
 640                                 @current_algorithms = ();
 641                                 @current_algorithms =
 642                                     grep(!/^$/,
 643                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 644                                          @known_algorithms);
 645                                 push @current_algorithms
 646                                     , grep(!/^$/,
 647                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 648                                          @known_algorithms);
 649                                 $def .=
 650                                     "#INFO:"
 651                                         .join(',',@current_platforms).":"
 652                                             .join(',',@current_algorithms).";";
 653                                 next;
 654                         }
 655                         if ($tag{'TRUE'} != -1) {
 656                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 657                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 658                                         next;
 659                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 660                                         $def .= "int d2i_$3(void);";
 661                                         $def .= "int i2d_$3(void);";
 662                                         # Variant for platforms that do not
 663                                         # have to access globale variables
 664                                         # in shared libraries through functions
 665                                         $def .=
 666                                             "#INFO:"
 667                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 668                                                     .join(',',@current_algorithms).";";
 669                                         $def .= "OPENSSL_EXTERN int $2_it;";
 670                                         $def .=
 671                                             "#INFO:"
 672                                                 .join(',',@current_platforms).":"
 673                                                     .join(',',@current_algorithms).";";
 674                                         # Variant for platforms that have to
 675                                         # access globale variables in shared
 676                                         # libraries through functions
 677                                         &$make_variant("$2_it","$2_it",
 678                                                       "EXPORT_VAR_AS_FUNCTION",
 679                                                       "FUNCTION");
 680                                         next;
 681                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 682                                         $def .= "int d2i_$3(void);";
 683                                         $def .= "int i2d_$3(void);";
 684                                         $def .= "int $3_free(void);";
 685                                         $def .= "int $3_new(void);";
 686                                         # Variant for platforms that do not
 687                                         # have to access globale variables
 688                                         # in shared libraries through functions
 689                                         $def .=
 690                                             "#INFO:"
 691                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 692                                                     .join(',',@current_algorithms).";";
 693                                         $def .= "OPENSSL_EXTERN int $2_it;";
 694                                         $def .=
 695                                             "#INFO:"
 696                                                 .join(',',@current_platforms).":"
 697                                                     .join(',',@current_algorithms).";";
 698                                         # Variant for platforms that have to
 699                                         # access globale variables in shared
 700                                         # libraries through functions
 701                                         &$make_variant("$2_it","$2_it",
 702                                                       "EXPORT_VAR_AS_FUNCTION",
 703                                                       "FUNCTION");
 704                                         next;
 705                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 706                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 707                                         $def .= "int d2i_$1(void);";
 708                                         $def .= "int i2d_$1(void);";
 709                                         $def .= "int $1_free(void);";
 710                                         $def .= "int $1_new(void);";
 711                                         # Variant for platforms that do not
 712                                         # have to access globale variables
 713                                         # in shared libraries through functions
 714                                         $def .=
 715                                             "#INFO:"
 716                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 717                                                     .join(',',@current_algorithms).";";
 718                                         $def .= "OPENSSL_EXTERN int $1_it;";
 719                                         $def .=
 720                                             "#INFO:"
 721                                                 .join(',',@current_platforms).":"
 722                                                     .join(',',@current_algorithms).";";
 723                                         # Variant for platforms that have to
 724                                         # access globale variables in shared
 725                                         # libraries through functions
 726                                         &$make_variant("$1_it","$1_it",
 727                                                       "EXPORT_VAR_AS_FUNCTION",
 728                                                       "FUNCTION");
 729                                         next;
 730                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 731                                         $def .= "int d2i_$2(void);";
 732                                         $def .= "int i2d_$2(void);";
 733                                         # Variant for platforms that do not
 734                                         # have to access globale variables
 735                                         # in shared libraries through functions
 736                                         $def .=
 737                                             "#INFO:"
 738                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 739                                                     .join(',',@current_algorithms).";";
 740                                         $def .= "OPENSSL_EXTERN int $2_it;";
 741                                         $def .=
 742                                             "#INFO:"
 743                                                 .join(',',@current_platforms).":"
 744                                                     .join(',',@current_algorithms).";";
 745                                         # Variant for platforms that have to
 746                                         # access globale variables in shared
 747                                         # libraries through functions
 748                                         &$make_variant("$2_it","$2_it",
 749                                                       "EXPORT_VAR_AS_FUNCTION",
 750                                                       "FUNCTION");
 751                                         next;
 752                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 753                                         $def .= "int $1_free(void);";
 754                                         $def .= "int $1_new(void);";
 755                                         next;
 756                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 757                                         $def .= "int d2i_$2(void);";
 758                                         $def .= "int i2d_$2(void);";
 759                                         $def .= "int $2_free(void);";
 760                                         $def .= "int $2_new(void);";
 761                                         # Variant for platforms that do not
 762                                         # have to access globale variables
 763                                         # in shared libraries through functions
 764                                         $def .=
 765                                             "#INFO:"
 766                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 767                                                     .join(',',@current_algorithms).";";
 768                                         $def .= "OPENSSL_EXTERN int $2_it;";
 769                                         $def .=
 770                                             "#INFO:"
 771                                                 .join(',',@current_platforms).":"
 772                                                     .join(',',@current_algorithms).";";
 773                                         # Variant for platforms that have to
 774                                         # access globale variables in shared
 775                                         # libraries through functions
 776                                         &$make_variant("$2_it","$2_it",
 777                                                       "EXPORT_VAR_AS_FUNCTION",
 778                                                       "FUNCTION");
 779                                         next;
 780                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 781                                         # Variant for platforms that do not
 782                                         # have to access globale variables
 783                                         # in shared libraries through functions
 784                                         $def .=
 785                                             "#INFO:"
 786                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 787                                                     .join(',',@current_algorithms).";";
 788                                         $def .= "OPENSSL_EXTERN int $1_it;";
 789                                         $def .=
 790                                             "#INFO:"
 791                                                 .join(',',@current_platforms).":"
 792                                                     .join(',',@current_algorithms).";";
 793                                         # Variant for platforms that have to
 794                                         # access globale variables in shared
 795                                         # libraries through functions
 796                                         &$make_variant("$1_it","$1_it",
 797                                                       "EXPORT_VAR_AS_FUNCTION",
 798                                                       "FUNCTION");
 799                                         next;
 800                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 801                                         $def .= "int i2d_$1_NDEF(void);";
 802                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 803                                         next;
 804                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 805                                         $def .= "int $1_print_ctx(void);";
 806                                         next;
 807                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 808                                         $def .= "int $2_print_ctx(void);";
 809                                         next;
 810                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 811                                         next;
 812                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 813                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 814                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 815                                         $def .=
 816                                             "#INFO:"
 817                                                 .join(',',@current_platforms).":"
 818                                                     .join(',',"STDIO",@current_algorithms).";";
 819                                         $def .= "int PEM_read_$1(void);";
 820                                         $def .= "int PEM_write_$1(void);";
 821                                         $def .=
 822                                             "#INFO:"
 823                                                 .join(',',@current_platforms).":"
 824                                                     .join(',',@current_algorithms).";";
 825                                         # Things that are everywhere
 826                                         $def .= "int PEM_read_bio_$1(void);";
 827                                         $def .= "int PEM_write_bio_$1(void);";
 828                                         next;
 829                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 830                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 831                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 832                                         $def .=
 833                                             "#INFO:"
 834                                                 .join(',',@current_platforms).":"
 835                                                     .join(',',"STDIO",@current_algorithms).";";
 836                                         $def .= "int PEM_write_$1(void);";
 837                                         $def .=
 838                                             "#INFO:"
 839                                                 .join(',',@current_platforms).":"
 840                                                     .join(',',@current_algorithms).";";
 841                                         # Things that are everywhere
 842                                         $def .= "int PEM_write_bio_$1(void);";
 843                                         next;
 844                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 845                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 846                                         $def .=
 847                                             "#INFO:"
 848                                                 .join(',',@current_platforms).":"
 849                                                     .join(',',"STDIO",@current_algorithms).";";
 850                                         $def .= "int PEM_read_$1(void);";
 851                                         $def .=
 852                                             "#INFO:"
 853                                                 .join(',',@current_platforms).":"
 854                                                     .join(',',"STDIO",@current_algorithms).";";
 855                                         # Things that are everywhere
 856                                         $def .= "int PEM_read_bio_$1(void);";
 857                                         next;
 858                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 859                                         # Variant for platforms that do not
 860                                         # have to access globale variables
 861                                         # in shared libraries through functions
 862                                         $def .=
 863                                             "#INFO:"
 864                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 865                                                     .join(',',@current_algorithms).";";
 866                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 867                                         $def .=
 868                                             "#INFO:"
 869                                                 .join(',',@current_platforms).":"
 870                                                     .join(',',@current_algorithms).";";
 871                                         # Variant for platforms that have to
 872                                         # access globale variables in shared
 873                                         # libraries through functions
 874                                         &$make_variant("_shadow_$2","_shadow_$2",
 875                                                       "EXPORT_VAR_AS_FUNCTION",
 876                                                       "FUNCTION");
 877                                 } elsif (/^\s*DEPRECATEDIN/) {
 878                                         $parens = count_parens($_);
 879                                         if ($parens == 0) {
 880                                                 $def .= do_deprecated($_,
 881                                                         \@current_platforms,
 882                                                         \@current_algorithms);
 883                                         } else {
 884                                                 $stored_multiline = $_;
 885                                                 $stored_multiline =~ s|\R$||;
 886                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 887                                                 next;
 888                                         }
 889                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 890                                         if (/\{|\/\*|\([^\)]*$/) {
 891                                                 $line = $_;
 892                                         } else {
 893                                                 $def .= $_;
 894                                         }
 895                                 }
 896                         }
 897                 }
 898                 close(IN);
 899                 die "$file: Unmatched tags\n" if $#tag >= 0;
 900
 901                 my $algs;
 902                 my $plays;
 903
 904                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 905                 foreach (split /;/, $def) {
 906                         my $s; my $k = "FUNCTION"; my $p; my $a;
 907                         s/^[\n\s]*//g;
 908                         s/[\n\s]*$//g;
 909                         next if(/\#undef/);
 910                         next if(/typedef\W/);
 911                         next if(/\#define/);
 912
 913                         # Reduce argument lists to empty ()
 914                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 915                         while(/\(.*\)/s) {
 916                                 s/\([^\(\)]+\)/\{\}/gs;
 917                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 918                         }
 919                         # pretend as we didn't use curly braces: {} -> ()
 920                         s/\{\}/\(\)/gs;
 921
 922                         s/STACK_OF\(\)/void/gs;
 923                         s/LHASH_OF\(\)/void/gs;
 924
 925                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 926                         if (/^\#INFO:([^:]*):(.*)$/) {
 927                                 $plats = $1;
 928                                 $algs = $2;
 929                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 930                                 next;
 931                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 932                                 $s = $1;
 933                                 $k = "VARIABLE";
 934                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 935                         } elsif (/TYPEDEF_\w+_OF/s) {
 936                                 next;
 937                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 938                                 $s = $1;                # a function name!
 939                                 print STDERR "DEBUG: found function $s\n" if $debug;
 940                         } elsif (/\(/ and not (/=/)) {
 941                                 print STDERR "File $file: cannot parse: $_;\n";
 942                                 next;
 943                         } else {
 944                                 next;
 945                         }
 946
 947                         $syms{$s} = 1;
 948                         $kind{$s} = $k;
 949
 950                         $p = $plats;
 951                         $a = $algs;
 952
 953                         $platform{$s} =
 954                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 955                         $algorithm{$s} .= ','.$a;
 956
 957                         if (defined($variant{$s})) {
 958                                 foreach $v (split /;/,$variant{$s}) {
 959                                         (my $r, my $p, my $k) = split(/:/,$v);
 960                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 961                                         $syms{$r} = 1;
 962                                         if (!defined($k)) { $k = $kind{$s}; }
 963                                         $kind{$r} = $k."(".$s.")";
 964                                         $algorithm{$r} = $algorithm{$s};
 965                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 966                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 967                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 968                                 }
 969                         }
 970                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 971                 }
 972         }
 973
 974         # Prune the returned symbols
 975
 976         delete $syms{"bn_dump1"};
 977         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 978
 979         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 980         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 981         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 982         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 983         $platform{"EVP_sha384"} = "!VMSVAX";
 984         $platform{"EVP_sha512"} = "!VMSVAX";
 985         $platform{"SHA384_Init"} = "!VMSVAX";
 986         $platform{"SHA384_Transform"} = "!VMSVAX";
 987         $platform{"SHA384_Update"} = "!VMSVAX";
 988         $platform{"SHA384_Final"} = "!VMSVAX";
 989         $platform{"SHA384"} = "!VMSVAX";
 990         $platform{"SHA512_Init"} = "!VMSVAX";
 991         $platform{"SHA512_Transform"} = "!VMSVAX";
 992         $platform{"SHA512_Update"} = "!VMSVAX";
 993         $platform{"SHA512_Final"} = "!VMSVAX";
 994         $platform{"SHA512"} = "!VMSVAX";
 995
 996
 997         # Info we know about
 998
 999         push @ret, map { $_."\\".&info_string($_,"EXIST",
1000                                               $platform{$_},
1001                                               $kind{$_},
1002                                               $algorithm{$_}) } keys %syms;
1003
1004         if (keys %unknown_algorithms) {
1005                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
1006                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
1007         }
1008         return(@ret);
1009 }
1010
1011 # Param: string of comma-separated platform-specs.
1012 sub reduce_platforms
1013 {
1014         my ($platforms) = @_;
1015         my $pl = defined($platforms) ? $platforms : "";
1016         my %p = map { $_ => 0 } split /,/, $pl;
1017         my $ret;
1018
1019         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1020             if $debug;
1021         # We do this, because if there's code like the following, it really
1022         # means the function exists in all cases and should therefore be
1023         # everywhere.  By increasing and decreasing, we may attain 0:
1024         #
1025         # ifndef WIN16
1026         #    int foo();
1027         # else
1028         #    int _fat foo();
1029         # endif
1030         foreach $platform (split /,/, $pl) {
1031                 if ($platform =~ /^!(.*)$/) {
1032                         $p{$1}--;
1033                 } else {
1034                         $p{$platform}++;
1035                 }
1036         }
1037         foreach $platform (keys %p) {
1038                 if ($p{$platform} == 0) { delete $p{$platform}; }
1039         }
1040
1041         delete $p{""};
1042
1043         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1044         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1045             if $debug;
1046         return $ret;
1047 }
1048
1049 sub info_string
1050 {
1051         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1052
1053         my %a = defined($algorithms) ?
1054             map { $_ => 1 } split /,/, $algorithms : ();
1055         my $k = defined($kind) ? $kind : "FUNCTION";
1056         my $ret;
1057         my $p = &reduce_platforms($platforms);
1058
1059         delete $a{""};
1060
1061         $ret = $exist;
1062         $ret .= ":".$p;
1063         $ret .= ":".$k;
1064         $ret .= ":".join(',',sort keys %a);
1065         return $ret;
1066 }
1067
1068 sub maybe_add_info
1069 {
1070         (my $name, *nums, my @symbols) = @_;
1071         my $sym;
1072         my $new_info = 0;
1073         my %syms=();
1074
1075         foreach $sym (@symbols) {
1076                 (my $s, my $i) = split /\\/, $sym;
1077                 if (defined($nums{$s})) {
1078                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1079                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1080                         if (!defined($dummy) || $i ne $dummy) {
1081                                 $nums{$s} = $n."\\".$vers."\\".$i;
1082                                 $new_info++;
1083                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1084                         }
1085                 }
1086                 $syms{$s} = 1;
1087         }
1088
1089         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1090         foreach $sym (@s) {
1091                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1092                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1093                         $new_info++;
1094                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1095                 }
1096         }
1097         if ($new_info) {
1098                 print STDERR "$name: $new_info old symbols have updated info\n";
1099                 if (!$do_rewrite) {
1100                         print STDERR "You should do a rewrite to fix this.\n";
1101                 }
1102         } else {
1103         }
1104 }
1105
1106 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1107 sub is_valid
1108 {
1109         my ($keywords_txt,$platforms) = @_;
1110         my (@keywords) = split /,/,$keywords_txt;
1111         my ($falsesum, $truesum) = (0, 1);
1112
1113         # Param: one keyword
1114         sub recognise
1115         {
1116                 my ($keyword,$platforms) = @_;
1117
1118                 if ($platforms) {
1119                         # platforms
1120                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1121                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1122                         if ($keyword eq "VMS" && $VMS) { return 1; }
1123                         if ($keyword eq "WIN32" && $W32) { return 1; }
1124                         if ($keyword eq "_WIN32" && $W32) { return 1; }
1125                         if ($keyword eq "WINNT" && $NT) { return 1; }
1126                         # Special platforms:
1127                         # EXPORT_VAR_AS_FUNCTION means that global variables
1128                         # will be represented as functions.  This currently
1129                         # only happens on VMS-VAX.
1130                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1131                                 return 1;
1132                         }
1133                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1134                         return 0;
1135                 } else {
1136                         # algorithms
1137                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1138
1139                         # Nothing recognise as true
1140                         return 1;
1141                 }
1142         }
1143
1144         foreach $k (@keywords) {
1145                 if ($k =~ /^!(.*)$/) {
1146                         $falsesum += &recognise($1,$platforms);
1147                 } else {
1148                         $truesum *= &recognise($k,$platforms);
1149                 }
1150         }
1151         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1152         return (!$falsesum) && $truesum;
1153 }
1154
1155 sub print_test_file
1156 {
1157         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1158         my $n = 1; my @e; my @r;
1159         my $sym; my $prev = ""; my $prefSSLeay;
1160
1161         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1162         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1163         @symbols=((sort @e),(sort @r));
1164
1165         foreach $sym (@symbols) {
1166                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1167                 my $v = 0;
1168                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1169                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1170                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1171                 if (!defined($nums{$s})) {
1172                         print STDERR "Warning: $s does not have a number assigned\n"
1173                             if(!$do_update);
1174                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1175                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1176                         if ($prev eq $s2) {
1177                                 print OUT "\t/* The following has already appeared previously */\n";
1178                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1179                         }
1180                         $prev = $s2;    # To warn about duplicates...
1181
1182                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1183                         if ($v) {
1184                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1185                         } else {
1186                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1187                         }
1188                 }
1189         }
1190 }
1191
1192 sub get_version
1193 {
1194    return $config{version};
1195 }
1196
1197 sub print_def_file
1198 {
1199         (*OUT,my $name,*nums,my @symbols)=@_;
1200         my $n = 1; my @e; my @r; my @v; my $prev="";
1201         my $liboptions="";
1202         my $libname = $name;
1203         my $http_vendor = 'www.openssl.org/';
1204         my $version = get_version();
1205         my $what = "OpenSSL: implementation of Secure Socket Layer";
1206         my $description = "$what $version, $name - http://$http_vendor";
1207         my $prevsymversion = "", $prevprevsymversion = "";
1208         # For VMS
1209         my $prevnum = 0;
1210         my $symvtextcount = 0;
1211
1212         if ($W32)
1213                 { $libname.="32"; }
1214
1215         if ($W32)
1216                 {
1217                 print OUT <<"EOF";
1218 ;
1219 ; Definition file for the DLL version of the $name library from OpenSSL
1220 ;
1221
1222 LIBRARY         $libname        $liboptions
1223
1224 EOF
1225
1226                 print "EXPORTS\n";
1227                 }
1228         elsif ($VMS)
1229                 {
1230                 print OUT <<"EOF";
1231 CASE_SENSITIVE=YES
1232 SYMBOL_VECTOR=(-
1233 EOF
1234                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1235                 }
1236
1237         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1238         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1239         if ($VMS) {
1240             # VMS needs to have the symbols on slot number order
1241             @symbols=(map { $_->[1] }
1242                       sort { $a->[0] <=> $b->[0] }
1243                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1244                             die "Error: $s doesn't have a number assigned\n"
1245                                 if !defined($nums{$s});
1246                             (my $n, my @rest) = split /\\/, $nums{$s};
1247                             [ $n, $_ ] } (@e, @r, @v));
1248         } else {
1249             @symbols=((sort @e),(sort @r), (sort @v));
1250         }
1251
1252         my ($baseversion, $currversion) = get_openssl_version();
1253         my $thisversion;
1254         do {
1255                 if (!defined($thisversion)) {
1256                         $thisversion = $baseversion;
1257                 } else {
1258                         $thisversion = get_next_version($thisversion);
1259                 }
1260                 foreach $sym (@symbols) {
1261                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1262                         my $v = 0;
1263                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1264                         if (!defined($nums{$s})) {
1265                                 die "Error: $s does not have a number assigned\n"
1266                                         if(!$do_update);
1267                         } else {
1268                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1269                                 next if $symversion ne $thisversion;
1270                                 my %pf = ();
1271                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1272                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1273                                 if (is_valid($p,1) && is_valid($a,0)) {
1274                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1275                                         if ($prev eq $s2) {
1276                                                 print STDERR "Warning: Symbol '",$s2,
1277                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1278                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1279                                         }
1280                                         $prev = $s2;    # To warn about duplicates...
1281                                         if($linux) {
1282                                                 if ($symversion ne $prevsymversion) {
1283                                                         if ($prevsymversion ne "") {
1284                                                                 if ($prevprevsymversion ne "") {
1285                                                                         print OUT "} OPENSSL_"
1286                                                                                                 ."$prevprevsymversion;\n\n";
1287                                                                 } else {
1288                                                                         print OUT "};\n\n";
1289                                                                 }
1290                                                         }
1291                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1292                                                         $prevprevsymversion = $prevsymversion;
1293                                                         $prevsymversion = $symversion;
1294                                                 }
1295                                                 print OUT "        $s2;\n";
1296                                         } elsif ($VMS) {
1297                                             while(++$prevnum < $n) {
1298                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1299                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1300                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1301                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1302                                                 }
1303                                                 if ($symvtextcount == 16) {
1304                                                     # Take away first comma
1305                                                     $symline =~ s/,//;
1306                                                 }
1307                                                 print OUT $symline;
1308                                                 $symvtextcount += length($symline) - 2;
1309                                             }
1310                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1311                                             my $symtype=
1312                                                 $v ? "DATA" : "PROCEDURE";
1313                                             my $symline=
1314                                                 ($s_uc ne $s
1315                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1316                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1317                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1318                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1319                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1320                                             }
1321                                             if ($symvtextcount == 16) {
1322                                                 # Take away first comma
1323                                                 $symline =~ s/,//;
1324                                             }
1325                                             print OUT $symline;
1326                                             $symvtextcount += length($symline) - 2;
1327                                         } elsif($v) {
1328                                                 printf OUT "    %s%-39s DATA\n",
1329                                                                 ($W32)?"":"_",$s2;
1330                                         } else {
1331                                                 printf OUT "    %s%s\n",
1332                                                                 ($W32)?"":"_",$s2;
1333                                         }
1334                                 }
1335                         }
1336                 }
1337         } while ($thisversion ne $currversion);
1338         if ($linux) {
1339                 if ($prevprevsymversion ne "") {
1340                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1341                 } else {
1342                         print OUT "    local: *;\n};\n\n";
1343                 }
1344         } elsif ($VMS) {
1345             print OUT ")\n";
1346             (my $libvmaj, my $libvmin, my $libvedit) =
1347                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1348             # The reason to multiply the edit number with 100 is to make space
1349             # for the possibility that we want to encode the patch letters
1350             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1351         }
1352         printf OUT "\n";
1353 }
1354
1355 sub load_numbers
1356 {
1357         my($name)=@_;
1358         my(@a,%ret);
1359         my $prevversion;
1360
1361         $max_num = 0;
1362         $num_noinfo = 0;
1363         $prev = "";
1364         $prev_cnt = 0;
1365
1366         my ($baseversion, $currversion) = get_openssl_version();
1367
1368         open(IN,"<$name") || die "unable to open $name:$!\n";
1369         while (<IN>) {
1370                 s|\R$||;        # Better chomp
1371                 s/#.*$//;
1372                 next if /^\s*$/;
1373                 @a=split;
1374                 if (defined $ret{$a[0]}) {
1375                         # This is actually perfectly OK
1376                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1377                 }
1378                 if ($max_num > $a[1]) {
1379                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1380                 }
1381                 elsif ($max_num == $a[1]) {
1382                         # This is actually perfectly OK
1383                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1384                         if ($a[0] eq $prev) {
1385                                 $prev_cnt++;
1386                                 $a[0] .= "{$prev_cnt}";
1387                         }
1388                 }
1389                 else {
1390                         $prev_cnt = 0;
1391                 }
1392                 if ($#a < 2) {
1393                         # Existence will be proven later, in do_defs
1394                         $ret{$a[0]}=$a[1];
1395                         $num_noinfo++;
1396                 } else {
1397                         #Sanity check the version number
1398                         if (defined $prevversion) {
1399                                 check_version_lte($prevversion, $a[2]);
1400                         }
1401                         check_version_lte($a[2], $currversion);
1402                         $prevversion = $a[2];
1403                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1404                 }
1405                 $max_num = $a[1] if $a[1] > $max_num;
1406                 $prev=$a[0];
1407         }
1408         if ($num_noinfo) {
1409                 print STDERR "Warning: $num_noinfo symbols were without info.";
1410                 if ($do_rewrite) {
1411                         printf STDERR "  The rewrite will fix this.\n";
1412                 } else {
1413                         printf STDERR "  You should do a rewrite to fix this.\n";
1414                 }
1415         }
1416         close(IN);
1417         return(%ret);
1418 }
1419
1420 sub parse_number
1421 {
1422         (my $str, my $what) = @_;
1423         (my $n, my $v, my $i) = split(/\\/,$str);
1424         if ($what eq "n") {
1425                 return $n;
1426         } else {
1427                 return $i;
1428         }
1429 }
1430
1431 sub rewrite_numbers
1432 {
1433         (*OUT,$name,*nums,@symbols)=@_;
1434         my $thing;
1435
1436         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1437         my $r; my %r; my %rsyms;
1438         foreach $r (@r) {
1439                 (my $s, my $i) = split /\\/, $r;
1440                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1441                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1442                 $r{$a} = $s."\\".$i;
1443                 $rsyms{$s} = 1;
1444         }
1445
1446         my %syms = ();
1447         foreach $_ (@symbols) {
1448                 (my $n, my $i) = split /\\/;
1449                 $syms{$n} = 1;
1450         }
1451
1452         my @s=sort {
1453             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1454             || $a cmp $b
1455         } keys %nums;
1456         foreach $sym (@s) {
1457                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1458                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1459                 next if defined($rsyms{$sym});
1460                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1461                 $i="NOEXIST::FUNCTION:"
1462                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1463                 my $s2 = $sym;
1464                 $s2 =~ s/\{[0-9]+\}$//;
1465                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1466                 if (exists $r{$sym}) {
1467                         (my $s, $i) = split /\\/,$r{$sym};
1468                         my $s2 = $s;
1469                         $s2 =~ s/\{[0-9]+\}$//;
1470                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1471                 }
1472         }
1473 }
1474
1475 sub update_numbers
1476 {
1477         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1478         my $new_syms = 0;
1479         my $basevers;
1480         my $vers;
1481
1482         ($basevers, $vers) = get_openssl_version();
1483
1484         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1485         my $r; my %r; my %rsyms;
1486         foreach $r (@r) {
1487                 (my $s, my $i) = split /\\/, $r;
1488                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1489                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1490                 $r{$a} = $s."\\".$i;
1491                 $rsyms{$s} = 1;
1492         }
1493
1494         foreach $sym (@symbols) {
1495                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1496                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1497                 next if defined($rsyms{$sym});
1498                 die "ERROR: Symbol $sym had no info attached to it."
1499                     if $i eq "";
1500                 if (!exists $nums{$s}) {
1501                         $new_syms++;
1502                         my $s2 = $s;
1503                         $s2 =~ s/\{[0-9]+\}$//;
1504                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1505                         if (exists $r{$s}) {
1506                                 ($s, $i) = split /\\/,$r{$s};
1507                                 $s =~ s/\{[0-9]+\}$//;
1508                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1509                         }
1510                 }
1511         }
1512         if($new_syms) {
1513                 print STDERR "$name: Added $new_syms new symbols\n";
1514         } else {
1515                 print STDERR "$name: No new symbols added\n";
1516         }
1517 }
1518
1519 sub check_existing
1520 {
1521         (*nums, my @symbols)=@_;
1522         my %existing; my @remaining;
1523         @remaining=();
1524         foreach $sym (@symbols) {
1525                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1526                 $existing{$s}=1;
1527         }
1528         foreach $sym (keys %nums) {
1529                 if (!exists $existing{$sym}) {
1530                         push @remaining, $sym;
1531                 }
1532         }
1533         if(@remaining) {
1534                 print STDERR "The following symbols do not seem to exist:\n";
1535                 foreach $sym (@remaining) {
1536                         print STDERR "\t",$sym,"\n";
1537                 }
1538         }
1539 }
1540
1541 sub count_parens
1542 {
1543         my $line = shift(@_);
1544
1545         my $open = $line =~ tr/\(//;
1546         my $close = $line =~ tr/\)//;
1547
1548         return $open - $close;
1549 }
1550
1551 #Parse opensslv.h to get the current version number. Also work out the base
1552 #version, i.e. the lowest version number that is binary compatible with this
1553 #version
1554 sub get_openssl_version()
1555 {
1556         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1557         open (IN, "$fn") || die "Can't open opensslv.h";
1558
1559         while(<IN>) {
1560                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1561                         my $suffix = $2;
1562                         (my $baseversion = $1) =~ s/\./_/g;
1563                         close IN;
1564                         return ($baseversion."0", $baseversion.$suffix);
1565                 }
1566         }
1567         die "Can't find OpenSSL version number\n";
1568 }
1569
1570 #Given an OpenSSL version number, calculate the next version number. If the
1571 #version number gets to a.b.czz then we go to a.b.(c+1)
1572 sub get_next_version()
1573 {
1574         my $thisversion = shift;
1575
1576         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1577
1578         if ($letter eq "zz") {
1579                 my $lastnum = substr($base, -1);
1580                 return substr($base, 0, length($base)-1).(++$lastnum);
1581         }
1582         return $base.get_next_letter($letter);
1583 }
1584
1585 #Given the letters off the end of an OpenSSL version string, calculate what
1586 #the letters for the next release would be.
1587 sub get_next_letter()
1588 {
1589         my $thisletter = shift;
1590         my $baseletter = "";
1591         my $endletter;
1592
1593         if ($thisletter eq "") {
1594                 return "a";
1595         }
1596         if ((length $thisletter) > 1) {
1597                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1598         } else {
1599                 $endletter = $thisletter;
1600         }
1601
1602         if ($endletter eq "z") {
1603                 return $thisletter."a";
1604         } else {
1605                 return $baseletter.(++$endletter);
1606         }
1607 }
1608
1609 #Check if a version is less than or equal to the current version. Its a fatal
1610 #error if not. They must also only differ in letters, or the last number (i.e.
1611 #the first two numbers must be the same)
1612 sub check_version_lte()
1613 {
1614         my ($testversion, $currversion) = @_;
1615         my $lentv;
1616         my $lencv;
1617         my $cvbase;
1618
1619         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1620         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1621
1622         #Die if we can't parse the version numbers or they don't look sane
1623         die "Invalid version number: $testversion and $currversion\n"
1624                 if (!defined($cvnums) || !defined($tvnums)
1625                         || length($cvnums) != 5
1626                         || length($tvnums) != 5);
1627
1628         #If the base versions (without letters) don't match check they only differ
1629         #in the last number
1630         if ($cvnums ne $tvnums) {
1631                 die "Invalid version number: $testversion "
1632                         ."for current version $currversion\n"
1633                         if (substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1634                 return;
1635         }
1636         #If we get here then the base version (i.e. the numbers) are the same - they
1637         #only differ in the letters
1638
1639         $lentv = length $testversion;
1640         $lencv = length $currversion;
1641
1642         #If the testversion has more letters than the current version then it must
1643         #be later (or malformed)
1644         if ($lentv > $lencv) {
1645                 die "Invalid version number: $testversion "
1646                         ."is greater than $currversion\n";
1647         }
1648
1649         #Get the last letter from the current version
1650         my ($cvletter) = $currversion =~ /([a-z])$/;
1651         if (defined $cvletter) {
1652                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1653         } else {
1654                 $cvbase = $currversion;
1655         }
1656         die "Unable to parse version number $currversion" if (!defined $cvbase);
1657         my $tvbase;
1658         my ($tvletter) = $testversion =~ /([a-z])$/;
1659         if (defined $tvletter) {
1660                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1661         } else {
1662                 $tvbase = $testversion;
1663         }
1664         die "Unable to parse version number $testversion" if (!defined $tvbase);
1665
1666         if ($lencv > $lentv) {
1667                 #If current version has more letters than testversion then testversion
1668                 #minus the final letter must be a substring of the current version
1669                 die "Invalid version number $testversion "
1670                         ."is greater than $currversion or is invalid\n"
1671                         if (index($cvbase, $tvbase) != 0);
1672         } else {
1673                 #If both versions have the same number of letters then they must be
1674                 #equal up to the last letter, and the last letter in testversion must
1675                 #be less than or equal to the last letter in current version.
1676                 die "Invalid version number $testversion "
1677                         ."is greater than $currversion\n"
1678                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1679         }
1680 }
1681
1682 sub do_deprecated()
1683 {
1684         my ($decl, $plats, $algs) = @_;
1685         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1686             or die "Bad DEPRECTEDIN: $decl\n";
1687         my $info1 .= "#INFO:";
1688         $info1 .= join(',', @{$plats}) . ":";
1689         my $info2 = $info1;
1690         $info1 .= join(',',@{$algs}, $1) . ";";
1691         $info2 .= join(',',@{$algs}) . ";";
1692         return $info1 . $2 . ";" . $info2;
1693 }