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 libeay.num and ssleay.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 my $debug=0;
  42
  43 my $crypto_num= "util/libeay.num";
  44 my $ssl_num=    "util/ssleay.num";
  45 my $libname;
  46
  47 my $do_update = 0;
  48 my $do_rewrite = 1;
  49 my $do_crypto = 0;
  50 my $do_ssl = 0;
  51 my $do_ctest = 0;
  52 my $do_ctestall = 0;
  53 my $do_checkexist = 0;
  54
  55 my $VMSVAX=0;
  56 my $VMSNonVAX=0;
  57 my $VMS=0;
  58 my $W32=0;
  59 my $NT=0;
  60 my $OS2=0;
  61 my $linux=0;
  62 # Set this to make typesafe STACK definitions appear in DEF
  63 my $safe_stack_def = 0;
  64
  65 my @known_platforms = ( "__FreeBSD__", "PERL5",
  66                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
  67                         );
  68 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  69 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  70                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  71                          "SHA256", "SHA512", "RMD160",
  72                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  73                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  74                          "SCRYPT", "CHACHA", "POLY1305",
  75                          # EC_NISTP_64_GCC_128
  76                          "EC_NISTP_64_GCC_128",
  77                          # Envelope "algorithms"
  78                          "EVP", "X509", "ASN1_TYPEDEFS",
  79                          # Helper "algorithms"
  80                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  81                          "LOCKING",
  82                          # External "algorithms"
  83                          "FP_API", "STDIO", "SOCK", "DGRAM",
  84                          "CRYPTO_MDEBUG",
  85                          # Engines
  86                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  87                          # X.509v3 Signed Certificate Timestamps
  88                          "SCT",
  89                          # RFC3779
  90                          "RFC3779",
  91                          # TLS
  92                          "PSK", "SRP", "HEARTBEATS",
  93                          # CMS
  94                          "CMS",
  95                          # CryptoAPI Engine
  96                          "CAPIENG",
  97                          # SSL v3 method
  98                          "SSL3_METHOD",
  99                          # JPAKE
 100                          "JPAKE",
 101                          # NEXTPROTONEG
 102                          "NEXTPROTONEG",
 103                          # Deprecated functions
 104                          "DEPRECATEDIN_0_9_8",
 105                          "DEPRECATEDIN_1_0_0",
 106                          "DEPRECATEDIN_1_1_0",
 107                          # SCTP
 108                          "SCTP",
 109                          # SRTP
 110                          "SRTP",
 111                          # SSL TRACE
 112                          "SSL_TRACE",
 113                          # Unit testing
 114                          "UNIT_TEST",
 115                          # OCB mode
 116                          "OCB",
 117                          # APPLINK (win build feature?)
 118                          "APPLINK"
 119                      );
 120
 121 my %disabled_algorithms;
 122
 123 foreach (@known_algorithms) {
 124     $disabled_algorithms{$_} = 0;
 125 }
 126
 127 my $options="";
 128 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 129 while(<IN>) {
 130     $options=$1 if (/^OPTIONS=(.*)$/);
 131 }
 132 close(IN);
 133
 134 my $zlib;
 135
 136 foreach (@ARGV, split(/ /, $options))
 137         {
 138         $debug=1 if $_ eq "debug";
 139         $W32=1 if $_ eq "32";
 140         die "win16 not supported" if $_ eq "16";
 141         if($_ eq "NT") {
 142                 $W32 = 1;
 143                 $NT = 1;
 144         }
 145         if ($_ eq "VMS-VAX") {
 146                 $VMS=1;
 147                 $VMSVAX=1;
 148         }
 149         if ($_ eq "VMS-NonVAX") {
 150                 $VMS=1;
 151                 $VMSNonVAX=1;
 152         }
 153         if ($_ eq "linux") {
 154                 $linux=1;
 155         }
 156         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
 157         $OS2=1 if $_ eq "OS2";
 158         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 159                          || $_ eq "enable-zlib-dynamic") {
 160                 $zlib = 1;
 161         }
 162
 163         $do_ssl=1 if $_ eq "ssleay";
 164         if ($_ eq "ssl") {
 165                 $do_ssl=1;
 166                 $libname=$_
 167         }
 168         $do_crypto=1 if $_ eq "libeay";
 169         if ($_ eq "crypto") {
 170                 $do_crypto=1;
 171                 $libname=$_;
 172         }
 173         $do_update=1 if $_ eq "update";
 174         $do_rewrite=1 if $_ eq "rewrite";
 175         $do_ctest=1 if $_ eq "ctest";
 176         $do_ctestall=1 if $_ eq "ctestall";
 177         $do_checkexist=1 if $_ eq "exist";
 178         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 179         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 180                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 181                 foreach (keys %disabled_algorithms) {
 182                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 183                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 184                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 185                         }
 186                 }
 187         }
 188         if (/^no-deprecated$/) {
 189                 foreach (keys %disabled_algorithms) {
 190                         if (/^DEPRECATEDIN_/) {
 191                                 $disabled_algorithms{$_} = 1;
 192                         }
 193                 }
 194         }
 195         elsif (/^(enable|disable|no)-(.*)$/) {
 196                 my $alg = uc $2;
 197         $alg =~ tr/-/_/;
 198                 if (exists $disabled_algorithms{$alg}) {
 199                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 200                 }
 201         }
 202
 203         }
 204
 205 if (!$libname) {
 206         if ($do_ssl) {
 207                 $libname="SSLEAY";
 208         }
 209         if ($do_crypto) {
 210                 $libname="LIBEAY";
 211         }
 212 }
 213
 214 # If no platform is given, assume WIN32
 215 if ($W32 + $VMS + $OS2 + $linux == 0) {
 216         $W32 = 1;
 217 }
 218 die "Please, only one platform at a time"
 219     if ($W32 + $VMS + $OS2 + $linux > 1);
 220
 221 if (!$do_ssl && !$do_crypto)
 222         {
 223         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 224         exit(1);
 225         }
 226
 227 %ssl_list=&load_numbers($ssl_num);
 228 $max_ssl = $max_num;
 229 %crypto_list=&load_numbers($crypto_num);
 230 $max_crypto = $max_num;
 231
 232 my $ssl="include/openssl/ssl.h";
 233 $ssl.=" include/openssl/tls1.h";
 234 $ssl.=" include/openssl/srtp.h";
 235
 236 my $crypto ="include/openssl/crypto.h";
 237 $crypto.=" crypto/include/internal/cryptlib.h";
 238 $crypto.=" crypto/include/internal/chacha.h"; # unless $no_chacha;
 239 $crypto.=" crypto/include/internal/poly1305.h"; # unless $no_poly1305;
 240 $crypto.=" include/internal/o_dir.h";
 241 $crypto.=" include/internal/o_str.h";
 242 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 243 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 244 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 245 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 246 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 247 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 248 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 249 $crypto.=" include/openssl/whrlpool.h" ;
 250 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 251 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 252 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 253 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 254 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 255 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 256 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 257 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 258 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 259
 260 $crypto.=" include/openssl/bn.h";
 261 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 262 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 263 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 264 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 265 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 266 $crypto.=" include/openssl/cmac.h" ;
 267
 268 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 269 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 270 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 271 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 272 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
 273 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 274 $crypto.=" include/openssl/conf.h";
 275 $crypto.=" include/openssl/txt_db.h";
 276
 277 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 278 $crypto.=" include/openssl/objects.h";
 279 $crypto.=" include/openssl/pem.h";
 280 #$crypto.=" include/openssl/meth.h";
 281 $crypto.=" include/openssl/asn1.h";
 282 $crypto.=" include/openssl/asn1t.h";
 283 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 284 $crypto.=" include/openssl/pkcs7.h";
 285 $crypto.=" include/openssl/pkcs12.h";
 286 $crypto.=" include/openssl/x509.h";
 287 $crypto.=" include/openssl/x509_vfy.h";
 288 $crypto.=" include/openssl/x509v3.h";
 289 $crypto.=" include/openssl/ts.h";
 290 $crypto.=" include/openssl/rand.h";
 291 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 292 $crypto.=" include/openssl/ocsp.h";
 293 $crypto.=" include/openssl/ui.h";
 294 #$crypto.=" include/openssl/store.h";
 295 $crypto.=" include/openssl/pqueue.h";
 296 $crypto.=" include/openssl/cms.h";
 297 $crypto.=" include/openssl/jpake.h";
 298 $crypto.=" include/openssl/srp.h";
 299 $crypto.=" include/openssl/modes.h";
 300 $crypto.=" include/openssl/async.h";
 301
 302 my $symhacks="include/openssl/symhacks.h";
 303
 304 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 305 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 306
 307 if ($do_update) {
 308
 309 if ($do_ssl == 1) {
 310
 311         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 312         if ($do_rewrite == 1) {
 313                 open(OUT, ">$ssl_num");
 314                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 315         } else {
 316                 open(OUT, ">>$ssl_num");
 317         }
 318         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 319         close OUT;
 320 }
 321
 322 if($do_crypto == 1) {
 323
 324         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 325         if ($do_rewrite == 1) {
 326                 open(OUT, ">$crypto_num");
 327                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 328         } else {
 329                 open(OUT, ">>$crypto_num");
 330         }
 331         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 332         close OUT;
 333 }
 334
 335 } elsif ($do_checkexist) {
 336         &check_existing(*ssl_list, @ssl_symbols)
 337                 if $do_ssl == 1;
 338         &check_existing(*crypto_list, @crypto_symbols)
 339                 if $do_crypto == 1;
 340 } elsif ($do_ctest || $do_ctestall) {
 341
 342         print <<"EOF";
 343
 344 /* Test file to check all DEF file symbols are present by trying
 345  * to link to all of them. This is *not* intended to be run!
 346  */
 347
 348 int main()
 349 {
 350 EOF
 351         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 352                 if $do_ssl == 1;
 353
 354         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 355                 if $do_crypto == 1;
 356
 357         print "}\n";
 358
 359 } else {
 360
 361         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 362                 if $do_ssl == 1;
 363
 364         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 365                 if $do_crypto == 1;
 366
 367 }
 368
 369
 370 sub do_defs
 371 {
 372         my($name,$files,$symhacksfile)=@_;
 373         my $file;
 374         my @ret;
 375         my %syms;
 376         my %platform;           # For anything undefined, we assume ""
 377         my %kind;               # For anything undefined, we assume "FUNCTION"
 378         my %algorithm;          # For anything undefined, we assume ""
 379         my %variant;
 380         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 381                                 # is the same name as the original.
 382         my $cpp;
 383         my %unknown_algorithms = ();
 384         my $parens = 0;
 385
 386         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 387                 {
 388                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 389                 open(IN,"<$file") || die "unable to open $file:$!\n";
 390                 my $line = "", my $def= "";
 391                 my %tag = (
 392                         (map { $_ => 0 } @known_platforms),
 393                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 394                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 395                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 396                         NOPROTO         => 0,
 397                         PERL5           => 0,
 398                         _WINDLL         => 0,
 399                         CONST_STRICT    => 0,
 400                         TRUE            => 1,
 401                 );
 402                 my $symhacking = $file eq $symhacksfile;
 403                 my @current_platforms = ();
 404                 my @current_algorithms = ();
 405
 406                 # params: symbol, alias, platforms, kind
 407                 # The reason to put this subroutine in a variable is that
 408                 # it will otherwise create it's own, unshared, version of
 409                 # %tag and %variant...
 410                 my $make_variant = sub
 411                 {
 412                         my ($s, $a, $p, $k) = @_;
 413                         my ($a1, $a2);
 414
 415                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 416                         if (defined($p))
 417                         {
 418                                 $a1 = join(",",$p,
 419                                            grep(!/^$/,
 420                                                 map { $tag{$_} == 1 ? $_ : "" }
 421                                                 @known_platforms));
 422                         }
 423                         else
 424                         {
 425                                 $a1 = join(",",
 426                                            grep(!/^$/,
 427                                                 map { $tag{$_} == 1 ? $_ : "" }
 428                                                 @known_platforms));
 429                         }
 430                         $a2 = join(",",
 431                                    grep(!/^$/,
 432                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 433                                         @known_ossl_platforms));
 434                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 435                         if ($a1 eq "") { $a1 = $a2; }
 436                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 437                         if ($a eq $s)
 438                         {
 439                                 if (!defined($variant_cnt{$s}))
 440                                 {
 441                                         $variant_cnt{$s} = 0;
 442                                 }
 443                                 $variant_cnt{$s}++;
 444                                 $a .= "{$variant_cnt{$s}}";
 445                         }
 446                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 447                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 448                         if (!grep(/^$togrep$/,
 449                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 450                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 451                                 $variant{$s} .= $toadd;
 452                         }
 453                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 454                 };
 455
 456                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 457                 while(<IN>) {
 458                         if($parens > 0) {
 459                                 #Inside a DEPRECATEDIN
 460                                 $stored_multiline .= $_;
 461                                 chomp $stored_multiline;
 462                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 463                                 $parens = count_parens($stored_multiline);
 464                                 if ($parens == 0) {
 465                                         $def .= do_deprecated($stored_multiline,
 466                                                         \@current_platforms,
 467                                                         \@current_algorithms);
 468                                 }
 469                                 next;
 470                         }
 471                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 472                                 {
 473                                 undef @tag;
 474                                 last;
 475                                 }
 476                         if ($line ne '') {
 477                                 $_ = $line . $_;
 478                                 $line = '';
 479                         }
 480
 481                         if (/\\$/) {
 482                                 chomp; # remove eol
 483                                 chop; # remove ending backslash
 484                                 $line = $_;
 485                                 next;
 486                         }
 487
 488                         if(/\/\*/) {
 489                                 if (not /\*\//) {       # multiline comment...
 490                                         $line = $_;     # ... just accumulate
 491                                         next;
 492                                 } else {
 493                                         s/\/\*.*?\*\///gs;# wipe it
 494                                 }
 495                         }
 496
 497                         if ($cpp) {
 498                                 $cpp++ if /^#\s*if/;
 499                                 $cpp-- if /^#\s*endif/;
 500                                 next;
 501                         }
 502                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 503
 504                         s/{[^{}]*}//gs;                      # ignore {} blocks
 505                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 506                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 507                         if (/^\#\s*ifndef\s+(.*)/) {
 508                                 push(@tag,"-");
 509                                 push(@tag,$1);
 510                                 $tag{$1}=-1;
 511                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 512                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 513                                 push(@tag,"-");
 514                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 515                                         my $tmp_1 = $1;
 516                                         my $tmp_;
 517                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 518                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 519                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 520                                                 push(@tag,$1);
 521                                                 $tag{$1}=-1;
 522                                         }
 523                                 } else {
 524                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 525                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 526                                         push(@tag,$1);
 527                                         $tag{$1}=-1;
 528                                 }
 529                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 530                                 push(@tag,"-");
 531                                 push(@tag,$1);
 532                                 $tag{$1}=1;
 533                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 534                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 535                                 push(@tag,"-");
 536                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 537                                         my $tmp_1 = $1;
 538                                         my $tmp_;
 539                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 540                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 541                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 542                                                 push(@tag,$1);
 543                                                 $tag{$1}=1;
 544                                         }
 545                                 } else {
 546                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 547                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 548                                         push(@tag,$1);
 549                                         $tag{$1}=1;
 550                                 }
 551                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 552                                 my $tag_i = $#tag;
 553                                 while($tag[$tag_i] ne "-") {
 554                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 555                                                 $tag{$tag[$tag_i]}=2;
 556                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 557                                         }
 558                                         $tag_i--;
 559                                 }
 560                         } elsif (/^\#\s*endif/) {
 561                                 my $tag_i = $#tag;
 562                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 563                                         my $t=$tag[$tag_i];
 564                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 565                                         if ($tag{$t}==2) {
 566                                                 $tag{$t}=-1;
 567                                         } else {
 568                                                 $tag{$t}=0;
 569                                         }
 570                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 571                                         pop(@tag);
 572                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 573                                                 $t=$1;
 574                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 575                                                 $t=$1;
 576                                         } else {
 577                                                 $t="";
 578                                         }
 579                                         if ($t ne ""
 580                                             && !grep(/^$t$/, @known_algorithms)) {
 581                                                 $unknown_algorithms{$t} = 1;
 582                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 583                                         }
 584                                         $tag_i--;
 585                                 }
 586                                 pop(@tag);
 587                         } elsif (/^\#\s*else/) {
 588                                 my $tag_i = $#tag;
 589                                 while($tag[$tag_i] ne "-") {
 590                                         my $t=$tag[$tag_i];
 591                                         $tag{$t}= -$tag{$t};
 592                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 593                                         $tag_i--;
 594                                 }
 595                         } elsif (/^\#\s*if\s+1/) {
 596                                 push(@tag,"-");
 597                                 # Dummy tag
 598                                 push(@tag,"TRUE");
 599                                 $tag{"TRUE"}=1;
 600                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 601                         } elsif (/^\#\s*if\s+0/) {
 602                                 push(@tag,"-");
 603                                 # Dummy tag
 604                                 push(@tag,"TRUE");
 605                                 $tag{"TRUE"}=-1;
 606                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 607                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 608                                  && $symhacking && $tag{'TRUE'} != -1) {
 609                                 # This is for aliasing.  When we find an alias,
 610                                 # we have to invert
 611                                 &$make_variant($1,$2);
 612                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 613                         }
 614                         if (/^\#/) {
 615                                 @current_platforms =
 616                                     grep(!/^$/,
 617                                          map { $tag{$_} == 1 ? $_ :
 618                                                    $tag{$_} == -1 ? "!".$_  : "" }
 619                                          @known_platforms);
 620                                 push @current_platforms
 621                                     , grep(!/^$/,
 622                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 623                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 624                                            @known_ossl_platforms);
 625                                 @current_algorithms = ();
 626                                 @current_algorithms =
 627                                     grep(!/^$/,
 628                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 629                                          @known_algorithms);
 630                                 push @current_algorithms
 631                                     , grep(!/^$/,
 632                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 633                                          @known_algorithms);
 634                                 $def .=
 635                                     "#INFO:"
 636                                         .join(',',@current_platforms).":"
 637                                             .join(',',@current_algorithms).";";
 638                                 next;
 639                         }
 640                         if ($tag{'TRUE'} != -1) {
 641                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 642                                         next;
 643                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 644                                         $def .= "int d2i_$3(void);";
 645                                         $def .= "int i2d_$3(void);";
 646                                         # Variant for platforms that do not
 647                                         # have to access globale variables
 648                                         # in shared libraries through functions
 649                                         $def .=
 650                                             "#INFO:"
 651                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 652                                                     .join(',',@current_algorithms).";";
 653                                         $def .= "OPENSSL_EXTERN int $2_it;";
 654                                         $def .=
 655                                             "#INFO:"
 656                                                 .join(',',@current_platforms).":"
 657                                                     .join(',',@current_algorithms).";";
 658                                         # Variant for platforms that have to
 659                                         # access globale variables in shared
 660                                         # libraries through functions
 661                                         &$make_variant("$2_it","$2_it",
 662                                                       "EXPORT_VAR_AS_FUNCTION",
 663                                                       "FUNCTION");
 664                                         next;
 665                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 666                                         $def .= "int d2i_$3(void);";
 667                                         $def .= "int i2d_$3(void);";
 668                                         $def .= "int $3_free(void);";
 669                                         $def .= "int $3_new(void);";
 670                                         # Variant for platforms that do not
 671                                         # have to access globale variables
 672                                         # in shared libraries through functions
 673                                         $def .=
 674                                             "#INFO:"
 675                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 676                                                     .join(',',@current_algorithms).";";
 677                                         $def .= "OPENSSL_EXTERN int $2_it;";
 678                                         $def .=
 679                                             "#INFO:"
 680                                                 .join(',',@current_platforms).":"
 681                                                     .join(',',@current_algorithms).";";
 682                                         # Variant for platforms that have to
 683                                         # access globale variables in shared
 684                                         # libraries through functions
 685                                         &$make_variant("$2_it","$2_it",
 686                                                       "EXPORT_VAR_AS_FUNCTION",
 687                                                       "FUNCTION");
 688                                         next;
 689                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 690                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 691                                         $def .= "int d2i_$1(void);";
 692                                         $def .= "int i2d_$1(void);";
 693                                         $def .= "int $1_free(void);";
 694                                         $def .= "int $1_new(void);";
 695                                         # Variant for platforms that do not
 696                                         # have to access globale variables
 697                                         # in shared libraries through functions
 698                                         $def .=
 699                                             "#INFO:"
 700                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 701                                                     .join(',',@current_algorithms).";";
 702                                         $def .= "OPENSSL_EXTERN int $1_it;";
 703                                         $def .=
 704                                             "#INFO:"
 705                                                 .join(',',@current_platforms).":"
 706                                                     .join(',',@current_algorithms).";";
 707                                         # Variant for platforms that have to
 708                                         # access globale variables in shared
 709                                         # libraries through functions
 710                                         &$make_variant("$1_it","$1_it",
 711                                                       "EXPORT_VAR_AS_FUNCTION",
 712                                                       "FUNCTION");
 713                                         next;
 714                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 715                                         $def .= "int d2i_$2(void);";
 716                                         $def .= "int i2d_$2(void);";
 717                                         # Variant for platforms that do not
 718                                         # have to access globale variables
 719                                         # in shared libraries through functions
 720                                         $def .=
 721                                             "#INFO:"
 722                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 723                                                     .join(',',@current_algorithms).";";
 724                                         $def .= "OPENSSL_EXTERN int $2_it;";
 725                                         $def .=
 726                                             "#INFO:"
 727                                                 .join(',',@current_platforms).":"
 728                                                     .join(',',@current_algorithms).";";
 729                                         # Variant for platforms that have to
 730                                         # access globale variables in shared
 731                                         # libraries through functions
 732                                         &$make_variant("$2_it","$2_it",
 733                                                       "EXPORT_VAR_AS_FUNCTION",
 734                                                       "FUNCTION");
 735                                         next;
 736                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 737                                         $def .= "int $1_free(void);";
 738                                         $def .= "int $1_new(void);";
 739                                         next;
 740                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 741                                         $def .= "int d2i_$2(void);";
 742                                         $def .= "int i2d_$2(void);";
 743                                         $def .= "int $2_free(void);";
 744                                         $def .= "int $2_new(void);";
 745                                         # Variant for platforms that do not
 746                                         # have to access globale variables
 747                                         # in shared libraries through functions
 748                                         $def .=
 749                                             "#INFO:"
 750                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 751                                                     .join(',',@current_algorithms).";";
 752                                         $def .= "OPENSSL_EXTERN int $2_it;";
 753                                         $def .=
 754                                             "#INFO:"
 755                                                 .join(',',@current_platforms).":"
 756                                                     .join(',',@current_algorithms).";";
 757                                         # Variant for platforms that have to
 758                                         # access globale variables in shared
 759                                         # libraries through functions
 760                                         &$make_variant("$2_it","$2_it",
 761                                                       "EXPORT_VAR_AS_FUNCTION",
 762                                                       "FUNCTION");
 763                                         next;
 764                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 765                                         # Variant for platforms that do not
 766                                         # have to access globale variables
 767                                         # in shared libraries through functions
 768                                         $def .=
 769                                             "#INFO:"
 770                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 771                                                     .join(',',@current_algorithms).";";
 772                                         $def .= "OPENSSL_EXTERN int $1_it;";
 773                                         $def .=
 774                                             "#INFO:"
 775                                                 .join(',',@current_platforms).":"
 776                                                     .join(',',@current_algorithms).";";
 777                                         # Variant for platforms that have to
 778                                         # access globale variables in shared
 779                                         # libraries through functions
 780                                         &$make_variant("$1_it","$1_it",
 781                                                       "EXPORT_VAR_AS_FUNCTION",
 782                                                       "FUNCTION");
 783                                         next;
 784                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 785                                         $def .= "int i2d_$1_NDEF(void);";
 786                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 787                                         next;
 788                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 789                                         $def .= "int $1_print_ctx(void);";
 790                                         next;
 791                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 792                                         $def .= "int $2_print_ctx(void);";
 793                                         next;
 794                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 795                                         next;
 796                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 797                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 798                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 799                                         $def .=
 800                                             "#INFO:"
 801                                                 .join(',',@current_platforms).":"
 802                                                     .join(',',@current_algorithms).";";
 803                                         $def .= "int PEM_read_$1(void);";
 804                                         $def .= "int PEM_write_$1(void);";
 805                                         $def .=
 806                                             "#INFO:"
 807                                                 .join(',',@current_platforms).":"
 808                                                     .join(',',@current_algorithms).";";
 809                                         # Things that are everywhere
 810                                         $def .= "int PEM_read_bio_$1(void);";
 811                                         $def .= "int PEM_write_bio_$1(void);";
 812                                         next;
 813                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 814                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 815                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 816                                         $def .=
 817                                             "#INFO:"
 818                                                 .join(',',@current_platforms).":"
 819                                                     .join(',',@current_algorithms).";";
 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_write_bio_$1(void);";
 827                                         next;
 828                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 829                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 830                                         $def .=
 831                                             "#INFO:"
 832                                                 .join(',',@current_platforms).":"
 833                                                     .join(',',@current_algorithms).";";
 834                                         $def .= "int PEM_read_$1(void);";
 835                                         $def .=
 836                                             "#INFO:"
 837                                                 .join(',',@current_platforms).":"
 838                                                     .join(',',@current_algorithms).";";
 839                                         # Things that are everywhere
 840                                         $def .= "int PEM_read_bio_$1(void);";
 841                                         next;
 842                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 843                                         # Variant for platforms that do not
 844                                         # have to access globale variables
 845                                         # in shared libraries through functions
 846                                         $def .=
 847                                             "#INFO:"
 848                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 849                                                     .join(',',@current_algorithms).";";
 850                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 851                                         $def .=
 852                                             "#INFO:"
 853                                                 .join(',',@current_platforms).":"
 854                                                     .join(',',@current_algorithms).";";
 855                                         # Variant for platforms that have to
 856                                         # access globale variables in shared
 857                                         # libraries through functions
 858                                         &$make_variant("_shadow_$2","_shadow_$2",
 859                                                       "EXPORT_VAR_AS_FUNCTION",
 860                                                       "FUNCTION");
 861                                 } elsif (/^\s*DEPRECATEDIN/) {
 862                                         $parens = count_parens($_);
 863                                         if ($parens == 0) {
 864                                                 $def .= do_deprecated($_,
 865                                                         \@current_platforms,
 866                                                         \@current_algorithms);
 867                                         } else {
 868                                                 $stored_multiline = $_;
 869                                                 chomp $stored_multiline;
 870                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 871                                                 next;
 872                                         }
 873                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 874                                         if (/\{|\/\*|\([^\)]*$/) {
 875                                                 $line = $_;
 876                                         } else {
 877                                                 $def .= $_;
 878                                         }
 879                                 }
 880                         }
 881                 }
 882                 close(IN);
 883
 884                 my $algs;
 885                 my $plays;
 886
 887                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 888                 foreach (split /;/, $def) {
 889                         my $s; my $k = "FUNCTION"; my $p; my $a;
 890                         s/^[\n\s]*//g;
 891                         s/[\n\s]*$//g;
 892                         next if(/\#undef/);
 893                         next if(/typedef\W/);
 894                         next if(/\#define/);
 895
 896                         # Reduce argument lists to empty ()
 897                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 898                         while(/\(.*\)/s) {
 899                                 s/\([^\(\)]+\)/\{\}/gs;
 900                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 901                         }
 902                         # pretend as we didn't use curly braces: {} -> ()
 903                         s/\{\}/\(\)/gs;
 904
 905                         s/STACK_OF\(\)/void/gs;
 906                         s/LHASH_OF\(\)/void/gs;
 907
 908                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 909                         if (/^\#INFO:([^:]*):(.*)$/) {
 910                                 $plats = $1;
 911                                 $algs = $2;
 912                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 913                                 next;
 914                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 915                                 $s = $1;
 916                                 $k = "VARIABLE";
 917                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 918                         } elsif (/TYPEDEF_\w+_OF/s) {
 919                                 next;
 920                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 921                                 $s = $1;                # a function name!
 922                                 print STDERR "DEBUG: found function $s\n" if $debug;
 923                         } elsif (/\(/ and not (/=/)) {
 924                                 print STDERR "File $file: cannot parse: $_;\n";
 925                                 next;
 926                         } else {
 927                                 next;
 928                         }
 929
 930                         $syms{$s} = 1;
 931                         $kind{$s} = $k;
 932
 933                         $p = $plats;
 934                         $a = $algs;
 935
 936                         $platform{$s} =
 937                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 938                         $algorithm{$s} .= ','.$a;
 939
 940                         if (defined($variant{$s})) {
 941                                 foreach $v (split /;/,$variant{$s}) {
 942                                         (my $r, my $p, my $k) = split(/:/,$v);
 943                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 944                                         $syms{$r} = 1;
 945                                         if (!defined($k)) { $k = $kind{$s}; }
 946                                         $kind{$r} = $k."(".$s.")";
 947                                         $algorithm{$r} = $algorithm{$s};
 948                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 949                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 950                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 951                                 }
 952                         }
 953                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 954                 }
 955         }
 956
 957         # Prune the returned symbols
 958
 959         delete $syms{"bn_dump1"};
 960         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 961
 962         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 963         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 964         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 965         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 966         $platform{"EVP_sha384"} = "!VMSVAX";
 967         $platform{"EVP_sha512"} = "!VMSVAX";
 968         $platform{"SHA384_Init"} = "!VMSVAX";
 969         $platform{"SHA384_Transform"} = "!VMSVAX";
 970         $platform{"SHA384_Update"} = "!VMSVAX";
 971         $platform{"SHA384_Final"} = "!VMSVAX";
 972         $platform{"SHA384"} = "!VMSVAX";
 973         $platform{"SHA512_Init"} = "!VMSVAX";
 974         $platform{"SHA512_Transform"} = "!VMSVAX";
 975         $platform{"SHA512_Update"} = "!VMSVAX";
 976         $platform{"SHA512_Final"} = "!VMSVAX";
 977         $platform{"SHA512"} = "!VMSVAX";
 978
 979
 980         # Info we know about
 981
 982         push @ret, map { $_."\\".&info_string($_,"EXIST",
 983                                               $platform{$_},
 984                                               $kind{$_},
 985                                               $algorithm{$_}) } keys %syms;
 986
 987         if (keys %unknown_algorithms) {
 988                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 989                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 990         }
 991         return(@ret);
 992 }
 993
 994 # Param: string of comma-separated platform-specs.
 995 sub reduce_platforms
 996 {
 997         my ($platforms) = @_;
 998         my $pl = defined($platforms) ? $platforms : "";
 999         my %p = map { $_ => 0 } split /,/, $pl;
1000         my $ret;
1001
1002         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1003             if $debug;
1004         # We do this, because if there's code like the following, it really
1005         # means the function exists in all cases and should therefore be
1006         # everywhere.  By increasing and decreasing, we may attain 0:
1007         #
1008         # ifndef WIN16
1009         #    int foo();
1010         # else
1011         #    int _fat foo();
1012         # endif
1013         foreach $platform (split /,/, $pl) {
1014                 if ($platform =~ /^!(.*)$/) {
1015                         $p{$1}--;
1016                 } else {
1017                         $p{$platform}++;
1018                 }
1019         }
1020         foreach $platform (keys %p) {
1021                 if ($p{$platform} == 0) { delete $p{$platform}; }
1022         }
1023
1024         delete $p{""};
1025
1026         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1027         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1028             if $debug;
1029         return $ret;
1030 }
1031
1032 sub info_string {
1033         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1034
1035         my %a = defined($algorithms) ?
1036             map { $_ => 1 } split /,/, $algorithms : ();
1037         my $k = defined($kind) ? $kind : "FUNCTION";
1038         my $ret;
1039         my $p = &reduce_platforms($platforms);
1040
1041         delete $a{""};
1042
1043         $ret = $exist;
1044         $ret .= ":".$p;
1045         $ret .= ":".$k;
1046         $ret .= ":".join(',',sort keys %a);
1047         return $ret;
1048 }
1049
1050 sub maybe_add_info {
1051         (my $name, *nums, my @symbols) = @_;
1052         my $sym;
1053         my $new_info = 0;
1054         my %syms=();
1055
1056         print STDERR "Updating $name info\n";
1057         foreach $sym (@symbols) {
1058                 (my $s, my $i) = split /\\/, $sym;
1059                 if (defined($nums{$s})) {
1060                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1061                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1062                         if (!defined($dummy) || $i ne $dummy) {
1063                                 $nums{$s} = $n."\\".$vers."\\".$i;
1064                                 $new_info++;
1065                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1066                         }
1067                 }
1068                 $syms{$s} = 1;
1069         }
1070
1071         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1072         foreach $sym (@s) {
1073                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1074                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1075                         $new_info++;
1076                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1077                 }
1078         }
1079         if ($new_info) {
1080                 print STDERR "$new_info old symbols got an info update\n";
1081                 if (!$do_rewrite) {
1082                         print STDERR "You should do a rewrite to fix this.\n";
1083                 }
1084         } else {
1085                 print STDERR "No old symbols needed info update\n";
1086         }
1087 }
1088
1089 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1090 sub is_valid
1091 {
1092         my ($keywords_txt,$platforms) = @_;
1093         my (@keywords) = split /,/,$keywords_txt;
1094         my ($falsesum, $truesum) = (0, 1);
1095
1096         # Param: one keyword
1097         sub recognise
1098         {
1099                 my ($keyword,$platforms) = @_;
1100
1101                 if ($platforms) {
1102                         # platforms
1103                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1104                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1105                         if ($keyword eq "VMS" && $VMS) { return 1; }
1106                         if ($keyword eq "WIN32" && $W32) { return 1; }
1107                         if ($keyword eq "WINNT" && $NT) { return 1; }
1108                         if ($keyword eq "OS2" && $OS2) { return 1; }
1109                         # Special platforms:
1110                         # EXPORT_VAR_AS_FUNCTION means that global variables
1111                         # will be represented as functions.  This currently
1112                         # only happens on VMS-VAX.
1113                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1114                                 return 1;
1115                         }
1116                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1117                         return 0;
1118                 } else {
1119                         # algorithms
1120                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1121
1122                         # Nothing recognise as true
1123                         return 1;
1124                 }
1125         }
1126
1127         foreach $k (@keywords) {
1128                 if ($k =~ /^!(.*)$/) {
1129                         $falsesum += &recognise($1,$platforms);
1130                 } else {
1131                         $truesum *= &recognise($k,$platforms);
1132                 }
1133         }
1134         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1135         return (!$falsesum) && $truesum;
1136 }
1137
1138 sub print_test_file
1139 {
1140         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1141         my $n = 1; my @e; my @r;
1142         my $sym; my $prev = ""; my $prefSSLeay;
1143
1144         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1145         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1146         @symbols=((sort @e),(sort @r));
1147
1148         foreach $sym (@symbols) {
1149                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1150                 my $v = 0;
1151                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1152                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1153                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1154                 if (!defined($nums{$s})) {
1155                         print STDERR "Warning: $s does not have a number assigned\n"
1156                             if(!$do_update);
1157                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1158                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1159                         if ($prev eq $s2) {
1160                                 print OUT "\t/* The following has already appeared previously */\n";
1161                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1162                         }
1163                         $prev = $s2;    # To warn about duplicates...
1164
1165                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1166                         if ($v) {
1167                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1168                         } else {
1169                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1170                         }
1171                 }
1172         }
1173 }
1174
1175 sub get_version {
1176    local *MF;
1177    my $v = '?';
1178    open MF, 'Makefile' or return $v;
1179    while (<MF>) {
1180      $v = $1, last if /^VERSION=(.*?)\s*$/;
1181    }
1182    close MF;
1183    return $v;
1184 }
1185
1186 sub print_def_file
1187 {
1188         (*OUT,my $name,*nums,my @symbols)=@_;
1189         my $n = 1; my @e; my @r; my @v; my $prev="";
1190         my $liboptions="";
1191         my $libname = $name;
1192         my $http_vendor = 'www.openssl.org/';
1193         my $version = get_version();
1194         my $what = "OpenSSL: implementation of Secure Socket Layer";
1195         my $description = "$what $version, $name - http://$http_vendor";
1196         my $prevsymversion = "", $prevprevsymversion = "";
1197         # For VMS
1198         my $prevnum = 0;
1199         my $symbolcount = 0;
1200
1201         if ($W32)
1202                 { $libname.="32"; }
1203         elsif ($OS2)
1204                 { # DLL names should not clash on the whole system.
1205                   # However, they should not have any particular relationship
1206                   # to the name of the static library.  Chose descriptive names
1207                   # (must be at most 8 chars).
1208                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1209                   $libname = $translate{$name} || $name;
1210                   $liboptions = <<EOO;
1211 INITINSTANCE
1212 DATA MULTIPLE NONSHARED
1213 EOO
1214                   # Vendor field can't contain colon, drat; so we omit http://
1215                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1216                 }
1217
1218         if ($W32 || $OS2)
1219                 {
1220                 print OUT <<"EOF";
1221 ;
1222 ; Definition file for the DLL version of the $name library from OpenSSL
1223 ;
1224
1225 LIBRARY         $libname        $liboptions
1226
1227 EOF
1228
1229                 print "EXPORTS\n";
1230                 }
1231         elsif ($VMS)
1232                 {
1233                 my $libref = $name eq "ssl" ? "LIBCRYPTO.EXE /SHARE" : "";
1234                 print OUT <<"EOF";
1235 IDENTIFICATION="LIB$libname V$version"
1236 LIB$libname.OLB /LIBRARY
1237 $libref
1238 SYMBOL_VECTOR=(-
1239 EOF
1240                 }
1241
1242         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1243         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1244         if ($VMS) {
1245             # VMS needs to have the symbols on slot number order
1246             @symbols=(map { $_->[1] }
1247                       sort { $a->[0] <=> $b->[0] }
1248                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1249                             die "Error: $s doesn't have a number assigned\n"
1250                                 if !defined($nums{$s});
1251                             (my $n, my @rest) = split /\\/, $nums{$s};
1252                             [ $n, $_ ] } (@e, @r, @v));
1253         } else {
1254             @symbols=((sort @e),(sort @r), (sort @v));
1255         }
1256
1257         my ($baseversion, $currversion) = get_openssl_version();
1258         my $thisversion;
1259         do {
1260                 if (!defined($thisversion)) {
1261                         $thisversion = $baseversion;
1262                 } else {
1263                         $thisversion = get_next_version($thisversion);
1264                 }
1265                 foreach $sym (@symbols) {
1266                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1267                         my $v = 0;
1268                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1269                         if (!defined($nums{$s})) {
1270                                 die "Error: $s does not have a number assigned\n"
1271                                         if(!$do_update);
1272                         } else {
1273                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1274                                 next if $symversion ne $thisversion;
1275                                 my %pf = ();
1276                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1277                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1278                                 if (is_valid($p,1) && is_valid($a,0)) {
1279                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1280                                         if ($prev eq $s2) {
1281                                                 print STDERR "Warning: Symbol '",$s2,
1282                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1283                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1284                                         }
1285                                         $prev = $s2;    # To warn about duplicates...
1286                                         if($linux) {
1287                                                 if ($symversion ne $prevsymversion) {
1288                                                         if ($prevsymversion ne "") {
1289                                                                 if ($prevprevsymversion ne "") {
1290                                                                         print OUT "} OPENSSL_"
1291                                                                                                 ."$prevprevsymversion;\n\n";
1292                                                                 } else {
1293                                                                         print OUT "};\n\n";
1294                                                                 }
1295                                                         }
1296                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1297                                                         $prevprevsymversion = $prevsymversion;
1298                                                         $prevsymversion = $symversion;
1299                                                 }
1300                                                 print OUT "        $s2;\n";
1301                                         } elsif ($VMS) {
1302                                             while(++$prevnum < $n) {
1303                                                 if ($symbolcount > 1023) {
1304                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1305                                                     $symbolcount = 0;
1306                                                 }
1307                                                 print OUT $symbolcount
1308                                                     ? "    ," : "    ";
1309                                                 print OUT "dummy$prevnum=PRIVATE_PROCEDURE -\n";
1310                                                 $symbolcount++;
1311                                             }
1312                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1313                                             if ($symbolcount > 1023) {
1314                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1315                                                 $symbolcount = 0;
1316                                             }
1317                                             print OUT $symbolcount
1318                                                 ? "    ," : "    ";
1319                                             print OUT "$s_uc/$s="
1320                                                 , ($v ? "DATA" : "PROCEDURE"), " -\n";
1321                                             $symbolcount++;
1322                                         } elsif($v && !$OS2) {
1323                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1324                                                                 ($W32)?"":"_",$s2,$n;
1325                                         } else {
1326                                                 printf OUT "    %s%-39s @%d\n",
1327                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1328                                         }
1329                                 }
1330                         }
1331                 }
1332         } while ($thisversion ne $currversion);
1333         if ($linux) {
1334                 if ($prevprevsymversion ne "") {
1335                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1336                 } else {
1337                         print OUT "    local: *;\n};\n\n";
1338                 }
1339         } elsif ($VMS) {
1340             print OUT ")\n";
1341             (my $libvmaj, my $libvmin, my $libvedit) =
1342                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1343             # The reason to multiply the edit number with 100 is to make space
1344             # for the possibility that we want to encode the patch letters
1345             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1346         }
1347         printf OUT "\n";
1348 }
1349
1350 sub load_numbers
1351 {
1352         my($name)=@_;
1353         my(@a,%ret);
1354         my $prevversion;
1355
1356         $max_num = 0;
1357         $num_noinfo = 0;
1358         $prev = "";
1359         $prev_cnt = 0;
1360
1361         my ($baseversion, $currversion) = get_openssl_version();
1362
1363         open(IN,"<$name") || die "unable to open $name:$!\n";
1364         while (<IN>) {
1365                 chop;
1366                 s/#.*$//;
1367                 next if /^\s*$/;
1368                 @a=split;
1369                 if (defined $ret{$a[0]}) {
1370                         # This is actually perfectly OK
1371                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1372                 }
1373                 if ($max_num > $a[1]) {
1374                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1375                 }
1376                 elsif ($max_num == $a[1]) {
1377                         # This is actually perfectly OK
1378                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1379                         if ($a[0] eq $prev) {
1380                                 $prev_cnt++;
1381                                 $a[0] .= "{$prev_cnt}";
1382                         }
1383                 }
1384                 else {
1385                         $prev_cnt = 0;
1386                 }
1387                 if ($#a < 2) {
1388                         # Existence will be proven later, in do_defs
1389                         $ret{$a[0]}=$a[1];
1390                         $num_noinfo++;
1391                 } else {
1392                         #Sanity check the version number
1393                         if (defined $prevversion) {
1394                                 check_version_lte($prevversion, $a[2]);
1395                         }
1396                         check_version_lte($a[2], $currversion);
1397                         $prevversion = $a[2];
1398                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1399                 }
1400                 $max_num = $a[1] if $a[1] > $max_num;
1401                 $prev=$a[0];
1402         }
1403         if ($num_noinfo) {
1404                 print STDERR "Warning: $num_noinfo symbols were without info.";
1405                 if ($do_rewrite) {
1406                         printf STDERR "  The rewrite will fix this.\n";
1407                 } else {
1408                         printf STDERR "  You should do a rewrite to fix this.\n";
1409                 }
1410         }
1411         close(IN);
1412         return(%ret);
1413 }
1414
1415 sub parse_number
1416 {
1417         (my $str, my $what) = @_;
1418         (my $n, my $v, my $i) = split(/\\/,$str);
1419         if ($what eq "n") {
1420                 return $n;
1421         } else {
1422                 return $i;
1423         }
1424 }
1425
1426 sub rewrite_numbers
1427 {
1428         (*OUT,$name,*nums,@symbols)=@_;
1429         my $thing;
1430
1431         print STDERR "Rewriting $name\n";
1432
1433         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1434         my $r; my %r; my %rsyms;
1435         foreach $r (@r) {
1436                 (my $s, my $i) = split /\\/, $r;
1437                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1438                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1439                 $r{$a} = $s."\\".$i;
1440                 $rsyms{$s} = 1;
1441         }
1442
1443         my %syms = ();
1444         foreach $_ (@symbols) {
1445                 (my $n, my $i) = split /\\/;
1446                 $syms{$n} = 1;
1447         }
1448
1449         my @s=sort {
1450             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1451             || $a cmp $b
1452         } keys %nums;
1453         foreach $sym (@s) {
1454                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1455                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1456                 next if defined($rsyms{$sym});
1457                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1458                 $i="NOEXIST::FUNCTION:"
1459                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1460                 my $s2 = $sym;
1461                 $s2 =~ s/\{[0-9]+\}$//;
1462                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1463                 if (exists $r{$sym}) {
1464                         (my $s, $i) = split /\\/,$r{$sym};
1465                         my $s2 = $s;
1466                         $s2 =~ s/\{[0-9]+\}$//;
1467                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1468                 }
1469         }
1470 }
1471
1472 sub update_numbers
1473 {
1474         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1475         my $new_syms = 0;
1476         my $basevers;
1477         my $vers;
1478
1479         ($basevers, $vers) = get_openssl_version();
1480
1481         print STDERR "Updating $name numbers\n";
1482
1483         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1484         my $r; my %r; my %rsyms;
1485         foreach $r (@r) {
1486                 (my $s, my $i) = split /\\/, $r;
1487                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1488                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1489                 $r{$a} = $s."\\".$i;
1490                 $rsyms{$s} = 1;
1491         }
1492
1493         foreach $sym (@symbols) {
1494                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1495                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1496                 next if defined($rsyms{$sym});
1497                 die "ERROR: Symbol $sym had no info attached to it."
1498                     if $i eq "";
1499                 if (!exists $nums{$s}) {
1500                         $new_syms++;
1501                         my $s2 = $s;
1502                         $s2 =~ s/\{[0-9]+\}$//;
1503                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1504                         if (exists $r{$s}) {
1505                                 ($s, $i) = split /\\/,$r{$s};
1506                                 $s =~ s/\{[0-9]+\}$//;
1507                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1508                         }
1509                 }
1510         }
1511         if($new_syms) {
1512                 print STDERR "$new_syms New symbols added\n";
1513         } else {
1514                 print STDERR "No New symbols Added\n";
1515         }
1516 }
1517
1518 sub check_existing
1519 {
1520         (*nums, my @symbols)=@_;
1521         my %existing; my @remaining;
1522         @remaining=();
1523         foreach $sym (@symbols) {
1524                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1525                 $existing{$s}=1;
1526         }
1527         foreach $sym (keys %nums) {
1528                 if (!exists $existing{$sym}) {
1529                         push @remaining, $sym;
1530                 }
1531         }
1532         if(@remaining) {
1533                 print STDERR "The following symbols do not seem to exist:\n";
1534                 foreach $sym (@remaining) {
1535                         print STDERR "\t",$sym,"\n";
1536                 }
1537         }
1538 }
1539
1540 sub count_parens
1541 {
1542         my $line = shift(@_);
1543
1544         my $open = $line =~ tr/\(//;
1545         my $close = $line =~ tr/\)//;
1546
1547         return $open - $close;
1548 }
1549
1550 #Parse opensslv.h to get the current version number. Also work out the base
1551 #version, i.e. the lowest version number that is binary compatible with this
1552 #version
1553 sub get_openssl_version()
1554 {
1555         open (IN, "include/openssl/opensslv.h") || die "Can't open opensslv.h";
1556
1557         while(<IN>) {
1558                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1559                         my $suffix = $2;
1560                         my $baseversion = $1 =~ s/\./_/gr;
1561                         close IN;
1562                         return ($baseversion."0", $baseversion.$suffix);
1563                 }
1564         }
1565         die "Can't find OpenSSL version number\n";
1566 }
1567
1568 #Given an OpenSSL version number, calculate the next version number. If the
1569 #version number gets to a.b.czz then we go to a.b.(c+1)
1570 sub get_next_version()
1571 {
1572         my $thisversion = shift;
1573
1574         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1575
1576         if ($letter eq "zz") {
1577                 my $lastnum = substr($base, -1);
1578                 return substr($base, 0, length($base)-1).(++$lastnum);
1579         }
1580         return $base.get_next_letter($letter);
1581 }
1582
1583 #Given the letters off the end of an OpenSSL version string, calculate what
1584 #the letters for the next release would be.
1585 sub get_next_letter()
1586 {
1587         my $thisletter = shift;
1588         my $baseletter = "";
1589         my $endletter;
1590
1591         if ($thisletter eq "") {
1592                 return "a";
1593         }
1594         if ((length $thisletter) > 1) {
1595                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1596         } else {
1597                 $endletter = $thisletter;
1598         }
1599
1600         if ($endletter eq "z") {
1601                 return $thisletter."a";
1602         } else {
1603                 return $baseletter.(++$endletter);
1604         }
1605 }
1606
1607 #Check if a version is less than or equal to the current version. Its a fatal
1608 #error if not. They must also only differ in letters, or the last number (i.e.
1609 #the first two numbers must be the same)
1610 sub check_version_lte()
1611 {
1612         my ($testversion, $currversion) = @_;
1613         my $lentv;
1614         my $lencv;
1615         my $cvbase;
1616
1617         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1618         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1619
1620         #Die if we can't parse the version numbers or they don't look sane
1621         die "Invalid version number: $testversion and $currversion\n"
1622                 if (!defined($cvnums) || !defined($tvnums)
1623                         || length($cvnums) != 5
1624                         || length($tvnums) != 5);
1625
1626         #If the base versions (without letters) don't match check they only differ
1627         #in the last number
1628         if ($cvnums ne $tvnums) {
1629                 die "Invalid version number: $testversion "
1630                         ."for current version $currversion\n"
1631                         if (substr($cvnums, -1) < substr($tvnums, -1)
1632                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1633                 return;
1634         }
1635         #If we get here then the base version (i.e. the numbers) are the same - they
1636         #only differ in the letters
1637
1638         $lentv = length $testversion;
1639         $lencv = length $currversion;
1640
1641         #If the testversion has more letters than the current version then it must
1642         #be later (or malformed)
1643         if ($lentv > $lencv) {
1644                 die "Invalid version number: $testversion "
1645                         ."is greater than $currversion\n";
1646         }
1647
1648         #Get the last letter from the current version
1649         my ($cvletter) = $currversion =~ /([a-z])$/;
1650         if (defined $cvletter) {
1651                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1652         } else {
1653                 $cvbase = $currversion;
1654         }
1655         die "Unable to parse version number $currversion" if (!defined $cvbase);
1656         my $tvbase;
1657         my ($tvletter) = $testversion =~ /([a-z])$/;
1658         if (defined $tvletter) {
1659                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1660         } else {
1661                 $tvbase = $testversion;
1662         }
1663         die "Unable to parse version number $testversion" if (!defined $tvbase);
1664
1665         if ($lencv > $lentv) {
1666                 #If current version has more letters than testversion then testversion
1667                 #minus the final letter must be a substring of the current version
1668                 die "Invalid version number $testversion "
1669                         ."is greater than $currversion or is invalid\n"
1670                         if (index($cvbase, $tvbase) != 0);
1671         } else {
1672                 #If both versions have the same number of letters then they must be
1673                 #equal up to the last letter, and the last letter in testversion must
1674                 #be less than or equal to the last letter in current version.
1675                 die "Invalid version number $testversion "
1676                         ."is greater than $currversion\n"
1677                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1678         }
1679 }
1680
1681 sub do_deprecated()
1682 {
1683         my ($decl, $plats, $algs) = @_;
1684         $decl =~ /^\s*(DEPRECATEDIN_\d_\d_\d)\s*\((.*)\)\s*$/;
1685         my $info1 .= "#INFO:";
1686         $info1 .= join(',', @{$plats}) . ":";
1687         my $info2 = $info1;
1688         $info1 .= join(',',@{$algs}, $1) . ";";
1689         $info2 .= join(',',@{$algs}) . ";";
1690         return $info1 . $2 . ";" . $info2;
1691 }