util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libcrypto.num and libssl.num,
   9 # The format of these files is:
  10 #
  11 #       routine-name    nnnn    vers    info
  12 #
  13 # The "nnnn" and "vers" fields are the numeric id and version for the symbol
  14 # respectively. The "info" part is actually a colon-separated string of fields
  15 # with the following meaning:
  16 #
  17 #       existence:platform:kind:algorithms
  18 #
  19 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  20 #   found somewhere in the source,
  21 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  22 #   comma-separated list of the platform, just as they are if the symbol exists
  23 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  24 #   symbol name variants for platforms where the names are too long for the
  25 #   compiler or linker, or if the systems is case insensitive and there is a
  26 #   clash, or the symbol is implemented differently (see
  27 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  28 #   in the file crypto/symhacks.h.
  29 #   The semantics for the platforms is that every item is checked against the
  30 #   environment.  For the negative items ("!FOO"), if any of them is false
  31 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  32 #   used.  For the positive itms, if all of them are false in the environment,
  33 #   the corresponding symbol can't be used.  Any combination of positive and
  34 #   negative items are possible, and of course leave room for some redundancy.
  35 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  36 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  37 #   exclude symbols that are part of an algorithm that some user wants to
  38 #   exclude.
  39 #
  40
  41 use lib ".";
  42 use configdata;
  43 use File::Spec::Functions;
  44
  45 my $debug=0;
  46
  47 my $crypto_num= catfile($config{sourcedir},"util","libcrypto.num");
  48 my $ssl_num=    catfile($config{sourcedir},"util","libssl.num");
  49 my $libname;
  50
  51 my $do_update = 0;
  52 my $do_rewrite = 1;
  53 my $do_crypto = 0;
  54 my $do_ssl = 0;
  55 my $do_ctest = 0;
  56 my $do_ctestall = 0;
  57 my $do_checkexist = 0;
  58
  59 my $VMSVAX=0;
  60 my $VMSNonVAX=0;
  61 my $VMS=0;
  62 my $W32=0;
  63 my $NT=0;
  64 my $linux=0;
  65 # Set this to make typesafe STACK definitions appear in DEF
  66 my $safe_stack_def = 0;
  67
  68 my @known_platforms = ( "__FreeBSD__", "PERL5",
  69                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
  70                         );
  71 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  72 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  73                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  74                          "SHA256", "SHA512", "RMD160",
  75                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  76                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  77                          "SCRYPT", "CHACHA", "POLY1305", "BLAKE2",
  78                          # EC_NISTP_64_GCC_128
  79                          "EC_NISTP_64_GCC_128",
  80                          # Envelope "algorithms"
  81                          "EVP", "X509", "ASN1_TYPEDEFS",
  82                          # Helper "algorithms"
  83                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  84                          "LOCKING",
  85                          # External "algorithms"
  86                          "FP_API", "STDIO", "SOCK", "DGRAM",
  87                          "CRYPTO_MDEBUG",
  88                          # Engines
  89                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  90                          # Entropy Gathering
  91                          "EGD",
  92                          # Certificate Transparency
  93                          "CT",
  94                          # RFC3779
  95                          "RFC3779",
  96                          # TLS
  97                          "PSK", "SRP", "HEARTBEATS",
  98                          # CMS
  99                          "CMS",
 100                          "OCSP",
 101                          # CryptoAPI Engine
 102                          "CAPIENG",
 103                          # SSL methods
 104                          "SSL3_METHOD", "TLS1_METHOD", "TLS1_1_METHOD", "TLS1_2_METHOD", "DTLS1_METHOD", "DTLS1_2_METHOD",
 105                          # NEXTPROTONEG
 106                          "NEXTPROTONEG",
 107                          # Deprecated functions
 108                          "DEPRECATEDIN_0_9_8",
 109                          "DEPRECATEDIN_1_0_0",
 110                          "DEPRECATEDIN_1_1_0",
 111                          # SCTP
 112                          "SCTP",
 113                          # SRTP
 114                          "SRTP",
 115                          # SSL TRACE
 116                          "SSL_TRACE",
 117                          # Unit testing
 118                          "UNIT_TEST",
 119                          # User Interface
 120                          "UI",
 121                          #
 122                          "TS",
 123                          # OCB mode
 124                          "OCB",
 125                          # APPLINK (win build feature?)
 126                          "APPLINK"
 127                      );
 128
 129 my %disabled_algorithms;
 130
 131 foreach (@known_algorithms) {
 132     $disabled_algorithms{$_} = 0;
 133 }
 134 # disabled by default
 135 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 136
 137 my $zlib;
 138
 139 foreach (@ARGV, split(/ /, $config{options}))
 140         {
 141         $debug=1 if $_ eq "debug";
 142         $W32=1 if $_ eq "32";
 143         die "win16 not supported" if $_ eq "16";
 144         if($_ eq "NT") {
 145                 $W32 = 1;
 146                 $NT = 1;
 147         }
 148         if ($_ eq "VMS-VAX") {
 149                 $VMS=1;
 150                 $VMSVAX=1;
 151         }
 152         if ($_ eq "VMS-NonVAX") {
 153                 $VMS=1;
 154                 $VMSNonVAX=1;
 155         }
 156         if ($_ eq "linux") {
 157                 $linux=1;
 158         }
 159         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
 160         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 161                          || $_ eq "enable-zlib-dynamic") {
 162                 $zlib = 1;
 163         }
 164
 165         $do_ssl=1 if $_ eq "libssl";
 166         if ($_ eq "ssl") {
 167                 $do_ssl=1;
 168                 $libname=$_
 169         }
 170         $do_crypto=1 if $_ eq "libcrypto";
 171         if ($_ eq "crypto") {
 172                 $do_crypto=1;
 173                 $libname=$_;
 174         }
 175         $do_update=1 if $_ eq "update";
 176         $do_rewrite=1 if $_ eq "rewrite";
 177         $do_ctest=1 if $_ eq "ctest";
 178         $do_ctestall=1 if $_ eq "ctestall";
 179         $do_checkexist=1 if $_ eq "exist";
 180         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 181                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 182                 foreach (keys %disabled_algorithms) {
 183                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 184                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 185                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 186                         }
 187                 }
 188         }
 189         if (/^no-deprecated$/) {
 190                 foreach (keys %disabled_algorithms) {
 191                         if (/^DEPRECATEDIN_/) {
 192                                 $disabled_algorithms{$_} = 1;
 193                         }
 194                 }
 195         }
 196         elsif (/^(enable|disable|no)-(.*)$/) {
 197                 my $alg = uc $2;
 198         $alg =~ tr/-/_/;
 199                 if (exists $disabled_algorithms{$alg}) {
 200                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 201                 }
 202         }
 203
 204         }
 205
 206 if (!$libname) {
 207         if ($do_ssl) {
 208                 $libname="LIBSSL";
 209         }
 210         if ($do_crypto) {
 211                 $libname="LIBCRYPTO";
 212         }
 213 }
 214
 215 # If no platform is given, assume WIN32
 216 if ($W32 + $VMS + $linux == 0) {
 217         $W32 = 1;
 218 }
 219 die "Please, only one platform at a time"
 220     if ($W32 + $VMS + $linux > 1);
 221
 222 if (!$do_ssl && !$do_crypto)
 223         {
 224         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 225         exit(1);
 226         }
 227
 228 %ssl_list=&load_numbers($ssl_num);
 229 $max_ssl = $max_num;
 230 %crypto_list=&load_numbers($crypto_num);
 231 $max_crypto = $max_num;
 232
 233 my $ssl="include/openssl/ssl.h";
 234 $ssl.=" include/openssl/tls1.h";
 235 $ssl.=" include/openssl/srtp.h";
 236
 237 # We use headers found in include/openssl and include/internal only.
 238 # The latter is needed so libssl.so/.dll/.exe can link properly.
 239 my $crypto ="include/openssl/crypto.h";
 240 $crypto.=" include/internal/o_dir.h";
 241 $crypto.=" include/internal/o_str.h";
 242 $crypto.=" include/internal/threads.h";
 243 $crypto.=" include/internal/err.h";
 244 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 245 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 246 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 247 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 248 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 249 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 250 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 251 $crypto.=" include/openssl/whrlpool.h" ;
 252 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 253 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 254 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 255 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 256 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 257 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 258 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 259 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 260 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 261
 262 $crypto.=" include/openssl/bn.h";
 263 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 264 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 265 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 266 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 267 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 268 $crypto.=" include/openssl/cmac.h" ;
 269
 270 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 271 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 272 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 273 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 274 $crypto.=" include/internal/dso.h" ; # unless $no_dso;
 275 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 276 $crypto.=" include/openssl/conf.h";
 277 $crypto.=" include/openssl/txt_db.h";
 278
 279 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 280 $crypto.=" include/openssl/objects.h";
 281 $crypto.=" include/openssl/pem.h";
 282 #$crypto.=" include/openssl/meth.h";
 283 $crypto.=" include/openssl/asn1.h";
 284 $crypto.=" include/openssl/asn1t.h";
 285 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 286 $crypto.=" include/openssl/pkcs7.h";
 287 $crypto.=" include/openssl/pkcs12.h";
 288 $crypto.=" include/openssl/x509.h";
 289 $crypto.=" include/openssl/x509_vfy.h";
 290 $crypto.=" include/openssl/x509v3.h";
 291 $crypto.=" include/openssl/ts.h";
 292 $crypto.=" include/openssl/rand.h";
 293 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 294 $crypto.=" include/openssl/ocsp.h";
 295 $crypto.=" include/openssl/ui.h";
 296 #$crypto.=" include/openssl/store.h";
 297 $crypto.=" include/openssl/cms.h";
 298 $crypto.=" include/openssl/srp.h";
 299 $crypto.=" include/openssl/modes.h";
 300 $crypto.=" include/openssl/async.h";
 301 $crypto.=" include/openssl/ct.h";
 302 $crypto.=" include/openssl/kdf.h";
 303
 304 my $symhacks="include/openssl/symhacks.h";
 305
 306 my @ssl_symbols = &do_defs("LIBSSL", $ssl, $symhacks);
 307 my @crypto_symbols = &do_defs("LIBCRYPTO", $crypto, $symhacks);
 308
 309 if ($do_update) {
 310
 311 if ($do_ssl == 1) {
 312
 313         &maybe_add_info("LIBSSL",*ssl_list,@ssl_symbols);
 314         if ($do_rewrite == 1) {
 315                 open(OUT, ">$ssl_num");
 316                 &rewrite_numbers(*OUT,"LIBSSL",*ssl_list,@ssl_symbols);
 317         } else {
 318                 open(OUT, ">>$ssl_num");
 319         }
 320         &update_numbers(*OUT,"LIBSSL",*ssl_list,$max_ssl,@ssl_symbols);
 321         close OUT;
 322 }
 323
 324 if($do_crypto == 1) {
 325
 326         &maybe_add_info("LIBCRYPTO",*crypto_list,@crypto_symbols);
 327         if ($do_rewrite == 1) {
 328                 open(OUT, ">$crypto_num");
 329                 &rewrite_numbers(*OUT,"LIBCRYPTO",*crypto_list,@crypto_symbols);
 330         } else {
 331                 open(OUT, ">>$crypto_num");
 332         }
 333         &update_numbers(*OUT,"LIBCRYPTO",*crypto_list,$max_crypto,@crypto_symbols);
 334         close OUT;
 335 }
 336
 337 } elsif ($do_checkexist) {
 338         &check_existing(*ssl_list, @ssl_symbols)
 339                 if $do_ssl == 1;
 340         &check_existing(*crypto_list, @crypto_symbols)
 341                 if $do_crypto == 1;
 342 } elsif ($do_ctest || $do_ctestall) {
 343
 344         print <<"EOF";
 345
 346 /* Test file to check all DEF file symbols are present by trying
 347  * to link to all of them. This is *not* intended to be run!
 348  */
 349
 350 int main()
 351 {
 352 EOF
 353         &print_test_file(*STDOUT,"LIBSSL",*ssl_list,$do_ctestall,@ssl_symbols)
 354                 if $do_ssl == 1;
 355
 356         &print_test_file(*STDOUT,"LIBCRYPTO",*crypto_list,$do_ctestall,@crypto_symbols)
 357                 if $do_crypto == 1;
 358
 359         print "}\n";
 360
 361 } else {
 362
 363         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 364                 if $do_ssl == 1;
 365
 366         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 367                 if $do_crypto == 1;
 368
 369 }
 370
 371
 372 sub do_defs
 373 {
 374         my($name,$files,$symhacksfile)=@_;
 375         my $file;
 376         my @ret;
 377         my %syms;
 378         my %platform;           # For anything undefined, we assume ""
 379         my %kind;               # For anything undefined, we assume "FUNCTION"
 380         my %algorithm;          # For anything undefined, we assume ""
 381         my %variant;
 382         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 383                                 # is the same name as the original.
 384         my $cpp;
 385         my %unknown_algorithms = ();
 386         my $parens = 0;
 387
 388         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 389                 {
 390                 my $fn = catfile($config{sourcedir},$file);
 391                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 392                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
 393                 my $line = "", my $def= "";
 394                 my %tag = (
 395                         (map { $_ => 0 } @known_platforms),
 396                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 397                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 398                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 399                         NOPROTO         => 0,
 400                         PERL5           => 0,
 401                         _WINDLL         => 0,
 402                         CONST_STRICT    => 0,
 403                         TRUE            => 1,
 404                 );
 405                 my $symhacking = $file eq $symhacksfile;
 406                 my @current_platforms = ();
 407                 my @current_algorithms = ();
 408
 409                 # params: symbol, alias, platforms, kind
 410                 # The reason to put this subroutine in a variable is that
 411                 # it will otherwise create it's own, unshared, version of
 412                 # %tag and %variant...
 413                 my $make_variant = sub
 414                 {
 415                         my ($s, $a, $p, $k) = @_;
 416                         my ($a1, $a2);
 417
 418                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 419                         if (defined($p))
 420                         {
 421                                 $a1 = join(",",$p,
 422                                            grep(!/^$/,
 423                                                 map { $tag{$_} == 1 ? $_ : "" }
 424                                                 @known_platforms));
 425                         }
 426                         else
 427                         {
 428                                 $a1 = join(",",
 429                                            grep(!/^$/,
 430                                                 map { $tag{$_} == 1 ? $_ : "" }
 431                                                 @known_platforms));
 432                         }
 433                         $a2 = join(",",
 434                                    grep(!/^$/,
 435                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 436                                         @known_ossl_platforms));
 437                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 438                         if ($a1 eq "") { $a1 = $a2; }
 439                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 440                         if ($a eq $s)
 441                         {
 442                                 if (!defined($variant_cnt{$s}))
 443                                 {
 444                                         $variant_cnt{$s} = 0;
 445                                 }
 446                                 $variant_cnt{$s}++;
 447                                 $a .= "{$variant_cnt{$s}}";
 448                         }
 449                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 450                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 451                         if (!grep(/^$togrep$/,
 452                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 453                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 454                                 $variant{$s} .= $toadd;
 455                         }
 456                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 457                 };
 458
 459                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 460                 while(<IN>) {
 461                         if($parens > 0) {
 462                                 #Inside a DEPRECATEDIN
 463                                 $stored_multiline .= $_;
 464                                 $stored_multiline =~ s|\R$||; # Better chomp
 465                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 466                                 $parens = count_parens($stored_multiline);
 467                                 if ($parens == 0) {
 468                                         $def .= do_deprecated($stored_multiline,
 469                                                         \@current_platforms,
 470                                                         \@current_algorithms);
 471                                 }
 472                                 next;
 473                         }
 474                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 475                                 {
 476                                 undef @tag;
 477                                 last;
 478                                 }
 479                         if ($line ne '') {
 480                                 $_ = $line . $_;
 481                                 $line = '';
 482                         }
 483
 484                         if (/\\$/) {
 485                                 $line = $`; # keep what was before the backslash
 486                                 next;
 487                         }
 488
 489                         if(/\/\*/) {
 490                                 if (not /\*\//) {       # multiline comment...
 491                                         $line = $_;     # ... just accumulate
 492                                         next;
 493                                 } else {
 494                                         s/\/\*.*?\*\///gs;# wipe it
 495                                 }
 496                         }
 497
 498                         if ($cpp) {
 499                                 $cpp++ if /^#\s*if/;
 500                                 $cpp-- if /^#\s*endif/;
 501                                 next;
 502                         }
 503                         if (/^#.*ifdef.*cplusplus/) {
 504                                 $cpp = 1;
 505                                 next;
 506                         }
 507
 508                         s/{[^{}]*}//gs;                      # ignore {} blocks
 509                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 510                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 511                         if (/^\#\s*ifndef\s+(.*)/) {
 512                                 push(@tag,"-");
 513                                 push(@tag,$1);
 514                                 $tag{$1}=-1;
 515                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 516                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 517                                 push(@tag,"-");
 518                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 519                                         my $tmp_1 = $1;
 520                                         my $tmp_;
 521                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 522                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 523                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 524                                                 push(@tag,$1);
 525                                                 $tag{$1}=-1;
 526                                         }
 527                                 } else {
 528                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 529                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 530                                         push(@tag,$1);
 531                                         $tag{$1}=-1;
 532                                 }
 533                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 534                                 push(@tag,"-");
 535                                 push(@tag,$1);
 536                                 $tag{$1}=1;
 537                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 538                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 539                                 push(@tag,"-");
 540                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 541                                         my $tmp_1 = $1;
 542                                         my $tmp_;
 543                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 544                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 545                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 546                                                 push(@tag,$1);
 547                                                 $tag{$1}=1;
 548                                         }
 549                                 } else {
 550                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 551                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 552                                         push(@tag,$1);
 553                                         $tag{$1}=1;
 554                                 }
 555                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 556                                 my $tag_i = $#tag;
 557                                 while($tag[$tag_i] ne "-") {
 558                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 559                                                 $tag{$tag[$tag_i]}=2;
 560                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 561                                         }
 562                                         $tag_i--;
 563                                 }
 564                         } elsif (/^\#\s*endif/) {
 565                                 my $tag_i = $#tag;
 566                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 567                                         my $t=$tag[$tag_i];
 568                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 569                                         if ($tag{$t}==2) {
 570                                                 $tag{$t}=-1;
 571                                         } else {
 572                                                 $tag{$t}=0;
 573                                         }
 574                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 575                                         pop(@tag);
 576                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 577                                                 $t=$1;
 578                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 579                                                 $t=$1;
 580                                         } else {
 581                                                 $t="";
 582                                         }
 583                                         if ($t ne ""
 584                                             && !grep(/^$t$/, @known_algorithms)) {
 585                                                 $unknown_algorithms{$t} = 1;
 586                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 587                                         }
 588                                         $tag_i--;
 589                                 }
 590                                 pop(@tag);
 591                         } elsif (/^\#\s*else/) {
 592                                 my $tag_i = $#tag;
 593                                 die "$file unmatched else\n" if $tag_i < 0;
 594                                 while($tag[$tag_i] ne "-") {
 595                                         my $t=$tag[$tag_i];
 596                                         $tag{$t}= -$tag{$t};
 597                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 598                                         $tag_i--;
 599                                 }
 600                         } elsif (/^\#\s*if\s+1/) {
 601                                 push(@tag,"-");
 602                                 # Dummy tag
 603                                 push(@tag,"TRUE");
 604                                 $tag{"TRUE"}=1;
 605                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 606                         } elsif (/^\#\s*if\s+0/) {
 607                                 push(@tag,"-");
 608                                 # Dummy tag
 609                                 push(@tag,"TRUE");
 610                                 $tag{"TRUE"}=-1;
 611                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 612                         } elsif (/^\#\s*if\s+/) {
 613                                 #Some other unrecognized "if" style
 614                                 push(@tag,"-");
 615                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 616                                  && $symhacking && $tag{'TRUE'} != -1) {
 617                                 # This is for aliasing.  When we find an alias,
 618                                 # we have to invert
 619                                 &$make_variant($1,$2);
 620                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 621                         }
 622                         if (/^\#/) {
 623                                 @current_platforms =
 624                                     grep(!/^$/,
 625                                          map { $tag{$_} == 1 ? $_ :
 626                                                    $tag{$_} == -1 ? "!".$_  : "" }
 627                                          @known_platforms);
 628                                 push @current_platforms
 629                                     , grep(!/^$/,
 630                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 631                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 632                                            @known_ossl_platforms);
 633                                 @current_algorithms = ();
 634                                 @current_algorithms =
 635                                     grep(!/^$/,
 636                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 637                                          @known_algorithms);
 638                                 push @current_algorithms
 639                                     , grep(!/^$/,
 640                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 641                                          @known_algorithms);
 642                                 $def .=
 643                                     "#INFO:"
 644                                         .join(',',@current_platforms).":"
 645                                             .join(',',@current_algorithms).";";
 646                                 next;
 647                         }
 648                         if ($tag{'TRUE'} != -1) {
 649                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 650                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 651                                         next;
 652                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 653                                         $def .= "int d2i_$3(void);";
 654                                         $def .= "int i2d_$3(void);";
 655                                         # Variant for platforms that do not
 656                                         # have to access globale variables
 657                                         # in shared libraries through functions
 658                                         $def .=
 659                                             "#INFO:"
 660                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 661                                                     .join(',',@current_algorithms).";";
 662                                         $def .= "OPENSSL_EXTERN int $2_it;";
 663                                         $def .=
 664                                             "#INFO:"
 665                                                 .join(',',@current_platforms).":"
 666                                                     .join(',',@current_algorithms).";";
 667                                         # Variant for platforms that have to
 668                                         # access globale variables in shared
 669                                         # libraries through functions
 670                                         &$make_variant("$2_it","$2_it",
 671                                                       "EXPORT_VAR_AS_FUNCTION",
 672                                                       "FUNCTION");
 673                                         next;
 674                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 675                                         $def .= "int d2i_$3(void);";
 676                                         $def .= "int i2d_$3(void);";
 677                                         $def .= "int $3_free(void);";
 678                                         $def .= "int $3_new(void);";
 679                                         # Variant for platforms that do not
 680                                         # have to access globale variables
 681                                         # in shared libraries through functions
 682                                         $def .=
 683                                             "#INFO:"
 684                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 685                                                     .join(',',@current_algorithms).";";
 686                                         $def .= "OPENSSL_EXTERN int $2_it;";
 687                                         $def .=
 688                                             "#INFO:"
 689                                                 .join(',',@current_platforms).":"
 690                                                     .join(',',@current_algorithms).";";
 691                                         # Variant for platforms that have to
 692                                         # access globale variables in shared
 693                                         # libraries through functions
 694                                         &$make_variant("$2_it","$2_it",
 695                                                       "EXPORT_VAR_AS_FUNCTION",
 696                                                       "FUNCTION");
 697                                         next;
 698                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 699                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 700                                         $def .= "int d2i_$1(void);";
 701                                         $def .= "int i2d_$1(void);";
 702                                         $def .= "int $1_free(void);";
 703                                         $def .= "int $1_new(void);";
 704                                         # Variant for platforms that do not
 705                                         # have to access globale variables
 706                                         # in shared libraries through functions
 707                                         $def .=
 708                                             "#INFO:"
 709                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 710                                                     .join(',',@current_algorithms).";";
 711                                         $def .= "OPENSSL_EXTERN int $1_it;";
 712                                         $def .=
 713                                             "#INFO:"
 714                                                 .join(',',@current_platforms).":"
 715                                                     .join(',',@current_algorithms).";";
 716                                         # Variant for platforms that have to
 717                                         # access globale variables in shared
 718                                         # libraries through functions
 719                                         &$make_variant("$1_it","$1_it",
 720                                                       "EXPORT_VAR_AS_FUNCTION",
 721                                                       "FUNCTION");
 722                                         next;
 723                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 724                                         $def .= "int d2i_$2(void);";
 725                                         $def .= "int i2d_$2(void);";
 726                                         # Variant for platforms that do not
 727                                         # have to access globale variables
 728                                         # in shared libraries through functions
 729                                         $def .=
 730                                             "#INFO:"
 731                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 732                                                     .join(',',@current_algorithms).";";
 733                                         $def .= "OPENSSL_EXTERN int $2_it;";
 734                                         $def .=
 735                                             "#INFO:"
 736                                                 .join(',',@current_platforms).":"
 737                                                     .join(',',@current_algorithms).";";
 738                                         # Variant for platforms that have to
 739                                         # access globale variables in shared
 740                                         # libraries through functions
 741                                         &$make_variant("$2_it","$2_it",
 742                                                       "EXPORT_VAR_AS_FUNCTION",
 743                                                       "FUNCTION");
 744                                         next;
 745                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 746                                         $def .= "int $1_free(void);";
 747                                         $def .= "int $1_new(void);";
 748                                         next;
 749                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 750                                         $def .= "int d2i_$2(void);";
 751                                         $def .= "int i2d_$2(void);";
 752                                         $def .= "int $2_free(void);";
 753                                         $def .= "int $2_new(void);";
 754                                         # Variant for platforms that do not
 755                                         # have to access globale variables
 756                                         # in shared libraries through functions
 757                                         $def .=
 758                                             "#INFO:"
 759                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 760                                                     .join(',',@current_algorithms).";";
 761                                         $def .= "OPENSSL_EXTERN int $2_it;";
 762                                         $def .=
 763                                             "#INFO:"
 764                                                 .join(',',@current_platforms).":"
 765                                                     .join(',',@current_algorithms).";";
 766                                         # Variant for platforms that have to
 767                                         # access globale variables in shared
 768                                         # libraries through functions
 769                                         &$make_variant("$2_it","$2_it",
 770                                                       "EXPORT_VAR_AS_FUNCTION",
 771                                                       "FUNCTION");
 772                                         next;
 773                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 774                                         # Variant for platforms that do not
 775                                         # have to access globale variables
 776                                         # in shared libraries through functions
 777                                         $def .=
 778                                             "#INFO:"
 779                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 780                                                     .join(',',@current_algorithms).";";
 781                                         $def .= "OPENSSL_EXTERN int $1_it;";
 782                                         $def .=
 783                                             "#INFO:"
 784                                                 .join(',',@current_platforms).":"
 785                                                     .join(',',@current_algorithms).";";
 786                                         # Variant for platforms that have to
 787                                         # access globale variables in shared
 788                                         # libraries through functions
 789                                         &$make_variant("$1_it","$1_it",
 790                                                       "EXPORT_VAR_AS_FUNCTION",
 791                                                       "FUNCTION");
 792                                         next;
 793                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 794                                         $def .= "int i2d_$1_NDEF(void);";
 795                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 796                                         next;
 797                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 798                                         $def .= "int $1_print_ctx(void);";
 799                                         next;
 800                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 801                                         $def .= "int $2_print_ctx(void);";
 802                                         next;
 803                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 804                                         next;
 805                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 806                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 807                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 808                                         $def .=
 809                                             "#INFO:"
 810                                                 .join(',',@current_platforms).":"
 811                                                     .join(',',@current_algorithms).";";
 812                                         $def .= "int PEM_read_$1(void);";
 813                                         $def .= "int PEM_write_$1(void);";
 814                                         $def .=
 815                                             "#INFO:"
 816                                                 .join(',',@current_platforms).":"
 817                                                     .join(',',@current_algorithms).";";
 818                                         # Things that are everywhere
 819                                         $def .= "int PEM_read_bio_$1(void);";
 820                                         $def .= "int PEM_write_bio_$1(void);";
 821                                         next;
 822                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 823                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 824                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 825                                         $def .=
 826                                             "#INFO:"
 827                                                 .join(',',@current_platforms).":"
 828                                                     .join(',',@current_algorithms).";";
 829                                         $def .= "int PEM_write_$1(void);";
 830                                         $def .=
 831                                             "#INFO:"
 832                                                 .join(',',@current_platforms).":"
 833                                                     .join(',',@current_algorithms).";";
 834                                         # Things that are everywhere
 835                                         $def .= "int PEM_write_bio_$1(void);";
 836                                         next;
 837                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 838                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 839                                         $def .=
 840                                             "#INFO:"
 841                                                 .join(',',@current_platforms).":"
 842                                                     .join(',',@current_algorithms).";";
 843                                         $def .= "int PEM_read_$1(void);";
 844                                         $def .=
 845                                             "#INFO:"
 846                                                 .join(',',@current_platforms).":"
 847                                                     .join(',',@current_algorithms).";";
 848                                         # Things that are everywhere
 849                                         $def .= "int PEM_read_bio_$1(void);";
 850                                         next;
 851                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 852                                         # Variant for platforms that do not
 853                                         # have to access globale variables
 854                                         # in shared libraries through functions
 855                                         $def .=
 856                                             "#INFO:"
 857                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 858                                                     .join(',',@current_algorithms).";";
 859                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 860                                         $def .=
 861                                             "#INFO:"
 862                                                 .join(',',@current_platforms).":"
 863                                                     .join(',',@current_algorithms).";";
 864                                         # Variant for platforms that have to
 865                                         # access globale variables in shared
 866                                         # libraries through functions
 867                                         &$make_variant("_shadow_$2","_shadow_$2",
 868                                                       "EXPORT_VAR_AS_FUNCTION",
 869                                                       "FUNCTION");
 870                                 } elsif (/^\s*DEPRECATEDIN/) {
 871                                         $parens = count_parens($_);
 872                                         if ($parens == 0) {
 873                                                 $def .= do_deprecated($_,
 874                                                         \@current_platforms,
 875                                                         \@current_algorithms);
 876                                         } else {
 877                                                 $stored_multiline = $_;
 878                                                 $stored_multiline =~ s|\R$||;
 879                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 880                                                 next;
 881                                         }
 882                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 883                                         if (/\{|\/\*|\([^\)]*$/) {
 884                                                 $line = $_;
 885                                         } else {
 886                                                 $def .= $_;
 887                                         }
 888                                 }
 889                         }
 890                 }
 891                 close(IN);
 892                 die "$file: Unmatched tags\n" if $#tag >= 0;
 893
 894                 my $algs;
 895                 my $plays;
 896
 897                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 898                 foreach (split /;/, $def) {
 899                         my $s; my $k = "FUNCTION"; my $p; my $a;
 900                         s/^[\n\s]*//g;
 901                         s/[\n\s]*$//g;
 902                         next if(/\#undef/);
 903                         next if(/typedef\W/);
 904                         next if(/\#define/);
 905
 906                         # Reduce argument lists to empty ()
 907                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 908                         while(/\(.*\)/s) {
 909                                 s/\([^\(\)]+\)/\{\}/gs;
 910                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 911                         }
 912                         # pretend as we didn't use curly braces: {} -> ()
 913                         s/\{\}/\(\)/gs;
 914
 915                         s/STACK_OF\(\)/void/gs;
 916                         s/LHASH_OF\(\)/void/gs;
 917
 918                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 919                         if (/^\#INFO:([^:]*):(.*)$/) {
 920                                 $plats = $1;
 921                                 $algs = $2;
 922                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 923                                 next;
 924                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 925                                 $s = $1;
 926                                 $k = "VARIABLE";
 927                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 928                         } elsif (/TYPEDEF_\w+_OF/s) {
 929                                 next;
 930                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 931                                 $s = $1;                # a function name!
 932                                 print STDERR "DEBUG: found function $s\n" if $debug;
 933                         } elsif (/\(/ and not (/=/)) {
 934                                 print STDERR "File $file: cannot parse: $_;\n";
 935                                 next;
 936                         } else {
 937                                 next;
 938                         }
 939
 940                         $syms{$s} = 1;
 941                         $kind{$s} = $k;
 942
 943                         $p = $plats;
 944                         $a = $algs;
 945
 946                         $platform{$s} =
 947                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 948                         $algorithm{$s} .= ','.$a;
 949
 950                         if (defined($variant{$s})) {
 951                                 foreach $v (split /;/,$variant{$s}) {
 952                                         (my $r, my $p, my $k) = split(/:/,$v);
 953                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 954                                         $syms{$r} = 1;
 955                                         if (!defined($k)) { $k = $kind{$s}; }
 956                                         $kind{$r} = $k."(".$s.")";
 957                                         $algorithm{$r} = $algorithm{$s};
 958                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 959                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 960                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 961                                 }
 962                         }
 963                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 964                 }
 965         }
 966
 967         # Prune the returned symbols
 968
 969         delete $syms{"bn_dump1"};
 970         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 971
 972         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 973         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 974         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 975         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 976         $platform{"EVP_sha384"} = "!VMSVAX";
 977         $platform{"EVP_sha512"} = "!VMSVAX";
 978         $platform{"SHA384_Init"} = "!VMSVAX";
 979         $platform{"SHA384_Transform"} = "!VMSVAX";
 980         $platform{"SHA384_Update"} = "!VMSVAX";
 981         $platform{"SHA384_Final"} = "!VMSVAX";
 982         $platform{"SHA384"} = "!VMSVAX";
 983         $platform{"SHA512_Init"} = "!VMSVAX";
 984         $platform{"SHA512_Transform"} = "!VMSVAX";
 985         $platform{"SHA512_Update"} = "!VMSVAX";
 986         $platform{"SHA512_Final"} = "!VMSVAX";
 987         $platform{"SHA512"} = "!VMSVAX";
 988
 989
 990         # Info we know about
 991
 992         push @ret, map { $_."\\".&info_string($_,"EXIST",
 993                                               $platform{$_},
 994                                               $kind{$_},
 995                                               $algorithm{$_}) } keys %syms;
 996
 997         if (keys %unknown_algorithms) {
 998                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 999                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
1000         }
1001         return(@ret);
1002 }
1003
1004 # Param: string of comma-separated platform-specs.
1005 sub reduce_platforms
1006 {
1007         my ($platforms) = @_;
1008         my $pl = defined($platforms) ? $platforms : "";
1009         my %p = map { $_ => 0 } split /,/, $pl;
1010         my $ret;
1011
1012         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1013             if $debug;
1014         # We do this, because if there's code like the following, it really
1015         # means the function exists in all cases and should therefore be
1016         # everywhere.  By increasing and decreasing, we may attain 0:
1017         #
1018         # ifndef WIN16
1019         #    int foo();
1020         # else
1021         #    int _fat foo();
1022         # endif
1023         foreach $platform (split /,/, $pl) {
1024                 if ($platform =~ /^!(.*)$/) {
1025                         $p{$1}--;
1026                 } else {
1027                         $p{$platform}++;
1028                 }
1029         }
1030         foreach $platform (keys %p) {
1031                 if ($p{$platform} == 0) { delete $p{$platform}; }
1032         }
1033
1034         delete $p{""};
1035
1036         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1037         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1038             if $debug;
1039         return $ret;
1040 }
1041
1042 sub info_string
1043 {
1044         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1045
1046         my %a = defined($algorithms) ?
1047             map { $_ => 1 } split /,/, $algorithms : ();
1048         my $k = defined($kind) ? $kind : "FUNCTION";
1049         my $ret;
1050         my $p = &reduce_platforms($platforms);
1051
1052         delete $a{""};
1053
1054         $ret = $exist;
1055         $ret .= ":".$p;
1056         $ret .= ":".$k;
1057         $ret .= ":".join(',',sort keys %a);
1058         return $ret;
1059 }
1060
1061 sub maybe_add_info
1062 {
1063         (my $name, *nums, my @symbols) = @_;
1064         my $sym;
1065         my $new_info = 0;
1066         my %syms=();
1067
1068         foreach $sym (@symbols) {
1069                 (my $s, my $i) = split /\\/, $sym;
1070                 if (defined($nums{$s})) {
1071                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1072                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1073                         if (!defined($dummy) || $i ne $dummy) {
1074                                 $nums{$s} = $n."\\".$vers."\\".$i;
1075                                 $new_info++;
1076                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1077                         }
1078                 }
1079                 $syms{$s} = 1;
1080         }
1081
1082         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1083         foreach $sym (@s) {
1084                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1085                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1086                         $new_info++;
1087                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1088                 }
1089         }
1090         if ($new_info) {
1091                 print STDERR "$name: $new_info old symbols have updated info\n";
1092                 if (!$do_rewrite) {
1093                         print STDERR "You should do a rewrite to fix this.\n";
1094                 }
1095         } else {
1096         }
1097 }
1098
1099 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1100 sub is_valid
1101 {
1102         my ($keywords_txt,$platforms) = @_;
1103         my (@keywords) = split /,/,$keywords_txt;
1104         my ($falsesum, $truesum) = (0, 1);
1105
1106         # Param: one keyword
1107         sub recognise
1108         {
1109                 my ($keyword,$platforms) = @_;
1110
1111                 if ($platforms) {
1112                         # platforms
1113                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1114                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1115                         if ($keyword eq "VMS" && $VMS) { return 1; }
1116                         if ($keyword eq "WIN32" && $W32) { return 1; }
1117                         if ($keyword eq "WINNT" && $NT) { return 1; }
1118                         # Special platforms:
1119                         # EXPORT_VAR_AS_FUNCTION means that global variables
1120                         # will be represented as functions.  This currently
1121                         # only happens on VMS-VAX.
1122                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1123                                 return 1;
1124                         }
1125                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1126                         return 0;
1127                 } else {
1128                         # algorithms
1129                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1130
1131                         # Nothing recognise as true
1132                         return 1;
1133                 }
1134         }
1135
1136         foreach $k (@keywords) {
1137                 if ($k =~ /^!(.*)$/) {
1138                         $falsesum += &recognise($1,$platforms);
1139                 } else {
1140                         $truesum *= &recognise($k,$platforms);
1141                 }
1142         }
1143         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1144         return (!$falsesum) && $truesum;
1145 }
1146
1147 sub print_test_file
1148 {
1149         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1150         my $n = 1; my @e; my @r;
1151         my $sym; my $prev = ""; my $prefSSLeay;
1152
1153         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1154         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1155         @symbols=((sort @e),(sort @r));
1156
1157         foreach $sym (@symbols) {
1158                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1159                 my $v = 0;
1160                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1161                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1162                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1163                 if (!defined($nums{$s})) {
1164                         print STDERR "Warning: $s does not have a number assigned\n"
1165                             if(!$do_update);
1166                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1167                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1168                         if ($prev eq $s2) {
1169                                 print OUT "\t/* The following has already appeared previously */\n";
1170                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1171                         }
1172                         $prev = $s2;    # To warn about duplicates...
1173
1174                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1175                         if ($v) {
1176                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1177                         } else {
1178                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1179                         }
1180                 }
1181         }
1182 }
1183
1184 sub get_version
1185 {
1186    return $config{version};
1187 }
1188
1189 sub print_def_file
1190 {
1191         (*OUT,my $name,*nums,my @symbols)=@_;
1192         my $n = 1; my @e; my @r; my @v; my $prev="";
1193         my $liboptions="";
1194         my $libname = $name;
1195         my $http_vendor = 'www.openssl.org/';
1196         my $version = get_version();
1197         my $what = "OpenSSL: implementation of Secure Socket Layer";
1198         my $description = "$what $version, $name - http://$http_vendor";
1199         my $prevsymversion = "", $prevprevsymversion = "";
1200         # For VMS
1201         my $prevnum = 0;
1202         my $symvtextcount = 0;
1203
1204         if ($W32)
1205                 { $libname.="32"; }
1206
1207         if ($W32)
1208                 {
1209                 print OUT <<"EOF";
1210 ;
1211 ; Definition file for the DLL version of the $name library from OpenSSL
1212 ;
1213
1214 LIBRARY         $libname        $liboptions
1215
1216 EOF
1217
1218                 print "EXPORTS\n";
1219                 }
1220         elsif ($VMS)
1221                 {
1222                 print OUT <<"EOF";
1223 CASE_SENSITIVE=YES
1224 SYMBOL_VECTOR=(-
1225 EOF
1226                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1227                 }
1228
1229         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1230         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1231         if ($VMS) {
1232             # VMS needs to have the symbols on slot number order
1233             @symbols=(map { $_->[1] }
1234                       sort { $a->[0] <=> $b->[0] }
1235                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1236                             die "Error: $s doesn't have a number assigned\n"
1237                                 if !defined($nums{$s});
1238                             (my $n, my @rest) = split /\\/, $nums{$s};
1239                             [ $n, $_ ] } (@e, @r, @v));
1240         } else {
1241             @symbols=((sort @e),(sort @r), (sort @v));
1242         }
1243
1244         my ($baseversion, $currversion) = get_openssl_version();
1245         my $thisversion;
1246         do {
1247                 if (!defined($thisversion)) {
1248                         $thisversion = $baseversion;
1249                 } else {
1250                         $thisversion = get_next_version($thisversion);
1251                 }
1252                 foreach $sym (@symbols) {
1253                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1254                         my $v = 0;
1255                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1256                         if (!defined($nums{$s})) {
1257                                 die "Error: $s does not have a number assigned\n"
1258                                         if(!$do_update);
1259                         } else {
1260                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1261                                 next if $symversion ne $thisversion;
1262                                 my %pf = ();
1263                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1264                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1265                                 if (is_valid($p,1) && is_valid($a,0)) {
1266                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1267                                         if ($prev eq $s2) {
1268                                                 print STDERR "Warning: Symbol '",$s2,
1269                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1270                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1271                                         }
1272                                         $prev = $s2;    # To warn about duplicates...
1273                                         if($linux) {
1274                                                 if ($symversion ne $prevsymversion) {
1275                                                         if ($prevsymversion ne "") {
1276                                                                 if ($prevprevsymversion ne "") {
1277                                                                         print OUT "} OPENSSL_"
1278                                                                                                 ."$prevprevsymversion;\n\n";
1279                                                                 } else {
1280                                                                         print OUT "};\n\n";
1281                                                                 }
1282                                                         }
1283                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1284                                                         $prevprevsymversion = $prevsymversion;
1285                                                         $prevsymversion = $symversion;
1286                                                 }
1287                                                 print OUT "        $s2;\n";
1288                                         } elsif ($VMS) {
1289                                             while(++$prevnum < $n) {
1290                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1291                                                 if ($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                                             }
1302                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1303                                             my $symtype=
1304                                                 $v ? "DATA" : "PROCEDURE";
1305                                             my $symline=
1306                                                 ($s_uc ne $s
1307                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1308                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1309                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1310                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1311                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1312                                             }
1313                                             if ($symvtextcount == 16) {
1314                                                 # Take away first comma
1315                                                 $symline =~ s/,//;
1316                                             }
1317                                             print OUT $symline;
1318                                             $symvtextcount += length($symline) - 2;
1319                                         } elsif($v) {
1320                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1321                                                                 ($W32)?"":"_",$s2,$n;
1322                                         } else {
1323                                                 printf OUT "    %s%-39s @%d\n",
1324                                                                 ($W32)?"":"_",$s2,$n;
1325                                         }
1326                                 }
1327                         }
1328                 }
1329         } while ($thisversion ne $currversion);
1330         if ($linux) {
1331                 if ($prevprevsymversion ne "") {
1332                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1333                 } else {
1334                         print OUT "    local: *;\n};\n\n";
1335                 }
1336         } elsif ($VMS) {
1337             print OUT ")\n";
1338             (my $libvmaj, my $libvmin, my $libvedit) =
1339                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1340             # The reason to multiply the edit number with 100 is to make space
1341             # for the possibility that we want to encode the patch letters
1342             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1343         }
1344         printf OUT "\n";
1345 }
1346
1347 sub load_numbers
1348 {
1349         my($name)=@_;
1350         my(@a,%ret);
1351         my $prevversion;
1352
1353         $max_num = 0;
1354         $num_noinfo = 0;
1355         $prev = "";
1356         $prev_cnt = 0;
1357
1358         my ($baseversion, $currversion) = get_openssl_version();
1359
1360         open(IN,"<$name") || die "unable to open $name:$!\n";
1361         while (<IN>) {
1362                 s|\R$||;        # Better chomp
1363                 s/#.*$//;
1364                 next if /^\s*$/;
1365                 @a=split;
1366                 if (defined $ret{$a[0]}) {
1367                         # This is actually perfectly OK
1368                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1369                 }
1370                 if ($max_num > $a[1]) {
1371                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1372                 }
1373                 elsif ($max_num == $a[1]) {
1374                         # This is actually perfectly OK
1375                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1376                         if ($a[0] eq $prev) {
1377                                 $prev_cnt++;
1378                                 $a[0] .= "{$prev_cnt}";
1379                         }
1380                 }
1381                 else {
1382                         $prev_cnt = 0;
1383                 }
1384                 if ($#a < 2) {
1385                         # Existence will be proven later, in do_defs
1386                         $ret{$a[0]}=$a[1];
1387                         $num_noinfo++;
1388                 } else {
1389                         #Sanity check the version number
1390                         if (defined $prevversion) {
1391                                 check_version_lte($prevversion, $a[2]);
1392                         }
1393                         check_version_lte($a[2], $currversion);
1394                         $prevversion = $a[2];
1395                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1396                 }
1397                 $max_num = $a[1] if $a[1] > $max_num;
1398                 $prev=$a[0];
1399         }
1400         if ($num_noinfo) {
1401                 print STDERR "Warning: $num_noinfo symbols were without info.";
1402                 if ($do_rewrite) {
1403                         printf STDERR "  The rewrite will fix this.\n";
1404                 } else {
1405                         printf STDERR "  You should do a rewrite to fix this.\n";
1406                 }
1407         }
1408         close(IN);
1409         return(%ret);
1410 }
1411
1412 sub parse_number
1413 {
1414         (my $str, my $what) = @_;
1415         (my $n, my $v, my $i) = split(/\\/,$str);
1416         if ($what eq "n") {
1417                 return $n;
1418         } else {
1419                 return $i;
1420         }
1421 }
1422
1423 sub rewrite_numbers
1424 {
1425         (*OUT,$name,*nums,@symbols)=@_;
1426         my $thing;
1427
1428         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1429         my $r; my %r; my %rsyms;
1430         foreach $r (@r) {
1431                 (my $s, my $i) = split /\\/, $r;
1432                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1433                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1434                 $r{$a} = $s."\\".$i;
1435                 $rsyms{$s} = 1;
1436         }
1437
1438         my %syms = ();
1439         foreach $_ (@symbols) {
1440                 (my $n, my $i) = split /\\/;
1441                 $syms{$n} = 1;
1442         }
1443
1444         my @s=sort {
1445             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1446             || $a cmp $b
1447         } keys %nums;
1448         foreach $sym (@s) {
1449                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1450                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1451                 next if defined($rsyms{$sym});
1452                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1453                 $i="NOEXIST::FUNCTION:"
1454                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1455                 my $s2 = $sym;
1456                 $s2 =~ s/\{[0-9]+\}$//;
1457                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1458                 if (exists $r{$sym}) {
1459                         (my $s, $i) = split /\\/,$r{$sym};
1460                         my $s2 = $s;
1461                         $s2 =~ s/\{[0-9]+\}$//;
1462                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1463                 }
1464         }
1465 }
1466
1467 sub update_numbers
1468 {
1469         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1470         my $new_syms = 0;
1471         my $basevers;
1472         my $vers;
1473
1474         ($basevers, $vers) = get_openssl_version();
1475
1476         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1477         my $r; my %r; my %rsyms;
1478         foreach $r (@r) {
1479                 (my $s, my $i) = split /\\/, $r;
1480                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1481                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1482                 $r{$a} = $s."\\".$i;
1483                 $rsyms{$s} = 1;
1484         }
1485
1486         foreach $sym (@symbols) {
1487                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1488                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1489                 next if defined($rsyms{$sym});
1490                 die "ERROR: Symbol $sym had no info attached to it."
1491                     if $i eq "";
1492                 if (!exists $nums{$s}) {
1493                         $new_syms++;
1494                         my $s2 = $s;
1495                         $s2 =~ s/\{[0-9]+\}$//;
1496                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1497                         if (exists $r{$s}) {
1498                                 ($s, $i) = split /\\/,$r{$s};
1499                                 $s =~ s/\{[0-9]+\}$//;
1500                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1501                         }
1502                 }
1503         }
1504         if($new_syms) {
1505                 print STDERR "$name: Added $new_syms new symbols\n";
1506         } else {
1507                 print STDERR "$name: No new symbols added\n";
1508         }
1509 }
1510
1511 sub check_existing
1512 {
1513         (*nums, my @symbols)=@_;
1514         my %existing; my @remaining;
1515         @remaining=();
1516         foreach $sym (@symbols) {
1517                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1518                 $existing{$s}=1;
1519         }
1520         foreach $sym (keys %nums) {
1521                 if (!exists $existing{$sym}) {
1522                         push @remaining, $sym;
1523                 }
1524         }
1525         if(@remaining) {
1526                 print STDERR "The following symbols do not seem to exist:\n";
1527                 foreach $sym (@remaining) {
1528                         print STDERR "\t",$sym,"\n";
1529                 }
1530         }
1531 }
1532
1533 sub count_parens
1534 {
1535         my $line = shift(@_);
1536
1537         my $open = $line =~ tr/\(//;
1538         my $close = $line =~ tr/\)//;
1539
1540         return $open - $close;
1541 }
1542
1543 #Parse opensslv.h to get the current version number. Also work out the base
1544 #version, i.e. the lowest version number that is binary compatible with this
1545 #version
1546 sub get_openssl_version()
1547 {
1548         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1549         open (IN, "$fn") || die "Can't open opensslv.h";
1550
1551         while(<IN>) {
1552                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1553                         my $suffix = $2;
1554                         (my $baseversion = $1) =~ s/\./_/g;
1555                         close IN;
1556                         return ($baseversion."0", $baseversion.$suffix);
1557                 }
1558         }
1559         die "Can't find OpenSSL version number\n";
1560 }
1561
1562 #Given an OpenSSL version number, calculate the next version number. If the
1563 #version number gets to a.b.czz then we go to a.b.(c+1)
1564 sub get_next_version()
1565 {
1566         my $thisversion = shift;
1567
1568         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1569
1570         if ($letter eq "zz") {
1571                 my $lastnum = substr($base, -1);
1572                 return substr($base, 0, length($base)-1).(++$lastnum);
1573         }
1574         return $base.get_next_letter($letter);
1575 }
1576
1577 #Given the letters off the end of an OpenSSL version string, calculate what
1578 #the letters for the next release would be.
1579 sub get_next_letter()
1580 {
1581         my $thisletter = shift;
1582         my $baseletter = "";
1583         my $endletter;
1584
1585         if ($thisletter eq "") {
1586                 return "a";
1587         }
1588         if ((length $thisletter) > 1) {
1589                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1590         } else {
1591                 $endletter = $thisletter;
1592         }
1593
1594         if ($endletter eq "z") {
1595                 return $thisletter."a";
1596         } else {
1597                 return $baseletter.(++$endletter);
1598         }
1599 }
1600
1601 #Check if a version is less than or equal to the current version. Its a fatal
1602 #error if not. They must also only differ in letters, or the last number (i.e.
1603 #the first two numbers must be the same)
1604 sub check_version_lte()
1605 {
1606         my ($testversion, $currversion) = @_;
1607         my $lentv;
1608         my $lencv;
1609         my $cvbase;
1610
1611         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1612         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1613
1614         #Die if we can't parse the version numbers or they don't look sane
1615         die "Invalid version number: $testversion and $currversion\n"
1616                 if (!defined($cvnums) || !defined($tvnums)
1617                         || length($cvnums) != 5
1618                         || length($tvnums) != 5);
1619
1620         #If the base versions (without letters) don't match check they only differ
1621         #in the last number
1622         if ($cvnums ne $tvnums) {
1623                 die "Invalid version number: $testversion "
1624                         ."for current version $currversion\n"
1625                         if (substr($cvnums, -1) < substr($tvnums, -1)
1626                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1627                 return;
1628         }
1629         #If we get here then the base version (i.e. the numbers) are the same - they
1630         #only differ in the letters
1631
1632         $lentv = length $testversion;
1633         $lencv = length $currversion;
1634
1635         #If the testversion has more letters than the current version then it must
1636         #be later (or malformed)
1637         if ($lentv > $lencv) {
1638                 die "Invalid version number: $testversion "
1639                         ."is greater than $currversion\n";
1640         }
1641
1642         #Get the last letter from the current version
1643         my ($cvletter) = $currversion =~ /([a-z])$/;
1644         if (defined $cvletter) {
1645                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1646         } else {
1647                 $cvbase = $currversion;
1648         }
1649         die "Unable to parse version number $currversion" if (!defined $cvbase);
1650         my $tvbase;
1651         my ($tvletter) = $testversion =~ /([a-z])$/;
1652         if (defined $tvletter) {
1653                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1654         } else {
1655                 $tvbase = $testversion;
1656         }
1657         die "Unable to parse version number $testversion" if (!defined $tvbase);
1658
1659         if ($lencv > $lentv) {
1660                 #If current version has more letters than testversion then testversion
1661                 #minus the final letter must be a substring of the current version
1662                 die "Invalid version number $testversion "
1663                         ."is greater than $currversion or is invalid\n"
1664                         if (index($cvbase, $tvbase) != 0);
1665         } else {
1666                 #If both versions have the same number of letters then they must be
1667                 #equal up to the last letter, and the last letter in testversion must
1668                 #be less than or equal to the last letter in current version.
1669                 die "Invalid version number $testversion "
1670                         ."is greater than $currversion\n"
1671                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1672         }
1673 }
1674
1675 sub do_deprecated()
1676 {
1677         my ($decl, $plats, $algs) = @_;
1678         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1679             or die "Bad DEPRECTEDIN: $decl\n";
1680         my $info1 .= "#INFO:";
1681         $info1 .= join(',', @{$plats}) . ":";
1682         my $info2 = $info1;
1683         $info1 .= join(',',@{$algs}, $1) . ";";
1684         $info2 .= join(',',@{$algs}) . ";";
1685         return $info1 . $2 . ";" . $info2;
1686 }