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 use lib ".";
  42 use configdata;
  43 use File::Spec::Functions;
  44
  45 my $debug=0;
  46
  47 my $crypto_num= catfile($config{sourcedir},"util","libeay.num");
  48 my $ssl_num=    catfile($config{sourcedir},"util","ssleay.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 $OS2=0;
  65 my $linux=0;
  66 # Set this to make typesafe STACK definitions appear in DEF
  67 my $safe_stack_def = 0;
  68
  69 my @known_platforms = ( "__FreeBSD__", "PERL5",
  70                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
  71                         );
  72 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  73 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  74                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  75                          "SHA256", "SHA512", "RMD160",
  76                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  77                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  78                          "SCRYPT", "CHACHA", "POLY1305",
  79                          # EC_NISTP_64_GCC_128
  80                          "EC_NISTP_64_GCC_128",
  81                          # Envelope "algorithms"
  82                          "EVP", "X509", "ASN1_TYPEDEFS",
  83                          # Helper "algorithms"
  84                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  85                          "LOCKING",
  86                          # External "algorithms"
  87                          "FP_API", "STDIO", "SOCK", "DGRAM",
  88                          "CRYPTO_MDEBUG",
  89                          # Engines
  90                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  91                          # Entropy Gathering
  92                          "EGD",
  93                          # Certificate Transparency
  94                          "CT",
  95                          # RFC3779
  96                          "RFC3779",
  97                          # TLS
  98                          "PSK", "SRP", "HEARTBEATS",
  99                          # CMS
 100                          "CMS",
 101                          # CryptoAPI Engine
 102                          "CAPIENG",
 103                          # SSL v3 method
 104                          "SSL3_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                          # OCB mode
 120                          "OCB",
 121                          # APPLINK (win build feature?)
 122                          "APPLINK"
 123                      );
 124
 125 my %disabled_algorithms;
 126
 127 foreach (@known_algorithms) {
 128     $disabled_algorithms{$_} = 0;
 129 }
 130 # disabled by default
 131 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 132
 133 my $zlib;
 134
 135 foreach (@ARGV, split(/ /, $config{options}))
 136         {
 137         $debug=1 if $_ eq "debug";
 138         $W32=1 if $_ eq "32";
 139         die "win16 not supported" if $_ eq "16";
 140         if($_ eq "NT") {
 141                 $W32 = 1;
 142                 $NT = 1;
 143         }
 144         if ($_ eq "VMS-VAX") {
 145                 $VMS=1;
 146                 $VMSVAX=1;
 147         }
 148         if ($_ eq "VMS-NonVAX") {
 149                 $VMS=1;
 150                 $VMSNonVAX=1;
 151         }
 152         if ($_ eq "linux") {
 153                 $linux=1;
 154         }
 155         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
 156         $OS2=1 if $_ eq "OS2";
 157         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 158                          || $_ eq "enable-zlib-dynamic") {
 159                 $zlib = 1;
 160         }
 161
 162         $do_ssl=1 if $_ eq "ssleay";
 163         if ($_ eq "ssl") {
 164                 $do_ssl=1;
 165                 $libname=$_
 166         }
 167         $do_crypto=1 if $_ eq "libeay";
 168         if ($_ eq "crypto") {
 169                 $do_crypto=1;
 170                 $libname=$_;
 171         }
 172         $do_update=1 if $_ eq "update";
 173         $do_rewrite=1 if $_ eq "rewrite";
 174         $do_ctest=1 if $_ eq "ctest";
 175         $do_ctestall=1 if $_ eq "ctestall";
 176         $do_checkexist=1 if $_ eq "exist";
 177         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 178                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 179                 foreach (keys %disabled_algorithms) {
 180                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 181                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 182                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 183                         }
 184                 }
 185         }
 186         if (/^no-deprecated$/) {
 187                 foreach (keys %disabled_algorithms) {
 188                         if (/^DEPRECATEDIN_/) {
 189                                 $disabled_algorithms{$_} = 1;
 190                         }
 191                 }
 192         }
 193         elsif (/^(enable|disable|no)-(.*)$/) {
 194                 my $alg = uc $2;
 195         $alg =~ tr/-/_/;
 196                 if (exists $disabled_algorithms{$alg}) {
 197                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 198                 }
 199         }
 200
 201         }
 202
 203 if (!$libname) {
 204         if ($do_ssl) {
 205                 $libname="SSLEAY";
 206         }
 207         if ($do_crypto) {
 208                 $libname="LIBEAY";
 209         }
 210 }
 211
 212 # If no platform is given, assume WIN32
 213 if ($W32 + $VMS + $OS2 + $linux == 0) {
 214         $W32 = 1;
 215 }
 216 die "Please, only one platform at a time"
 217     if ($W32 + $VMS + $OS2 + $linux > 1);
 218
 219 if (!$do_ssl && !$do_crypto)
 220         {
 221         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 222         exit(1);
 223         }
 224
 225 %ssl_list=&load_numbers($ssl_num);
 226 $max_ssl = $max_num;
 227 %crypto_list=&load_numbers($crypto_num);
 228 $max_crypto = $max_num;
 229
 230 my $ssl="include/openssl/ssl.h";
 231 $ssl.=" include/openssl/tls1.h";
 232 $ssl.=" include/openssl/srtp.h";
 233
 234 # We use headers found in include/openssl and include/internal only.
 235 # The latter is needed so libssl.so/.dll/.exe can link properly.
 236 my $crypto ="include/openssl/crypto.h";
 237 $crypto.=" include/internal/o_dir.h";
 238 $crypto.=" include/internal/o_str.h";
 239 $crypto.=" include/internal/threads.h";
 240 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 241 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 242 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 243 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 244 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 245 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 246 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 247 $crypto.=" include/openssl/whrlpool.h" ;
 248 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 249 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 250 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 251 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 252 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 253 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 254 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 255 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 256 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 257
 258 $crypto.=" include/openssl/bn.h";
 259 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 260 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 261 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 262 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 263 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 264 $crypto.=" include/openssl/cmac.h" ;
 265
 266 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 267 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 268 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 269 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 270 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
 271 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 272 $crypto.=" include/openssl/conf.h";
 273 $crypto.=" include/openssl/txt_db.h";
 274
 275 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 276 $crypto.=" include/openssl/objects.h";
 277 $crypto.=" include/openssl/pem.h";
 278 #$crypto.=" include/openssl/meth.h";
 279 $crypto.=" include/openssl/asn1.h";
 280 $crypto.=" include/openssl/asn1t.h";
 281 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 282 $crypto.=" include/openssl/pkcs7.h";
 283 $crypto.=" include/openssl/pkcs12.h";
 284 $crypto.=" include/openssl/x509.h";
 285 $crypto.=" include/openssl/x509_vfy.h";
 286 $crypto.=" include/openssl/x509v3.h";
 287 $crypto.=" include/openssl/ts.h";
 288 $crypto.=" include/openssl/rand.h";
 289 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 290 $crypto.=" include/openssl/ocsp.h";
 291 $crypto.=" include/openssl/ui.h";
 292 #$crypto.=" include/openssl/store.h";
 293 $crypto.=" include/openssl/cms.h";
 294 $crypto.=" include/openssl/srp.h";
 295 $crypto.=" include/openssl/modes.h";
 296 $crypto.=" include/openssl/async.h";
 297 $crypto.=" include/openssl/ct.h";
 298 $crypto.=" include/openssl/kdf.h";
 299
 300 my $symhacks="include/openssl/symhacks.h";
 301
 302 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 303 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 304
 305 if ($do_update) {
 306
 307 if ($do_ssl == 1) {
 308
 309         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 310         if ($do_rewrite == 1) {
 311                 open(OUT, ">$ssl_num");
 312                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 313         } else {
 314                 open(OUT, ">>$ssl_num");
 315         }
 316         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 317         close OUT;
 318 }
 319
 320 if($do_crypto == 1) {
 321
 322         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 323         if ($do_rewrite == 1) {
 324                 open(OUT, ">$crypto_num");
 325                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 326         } else {
 327                 open(OUT, ">>$crypto_num");
 328         }
 329         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 330         close OUT;
 331 }
 332
 333 } elsif ($do_checkexist) {
 334         &check_existing(*ssl_list, @ssl_symbols)
 335                 if $do_ssl == 1;
 336         &check_existing(*crypto_list, @crypto_symbols)
 337                 if $do_crypto == 1;
 338 } elsif ($do_ctest || $do_ctestall) {
 339
 340         print <<"EOF";
 341
 342 /* Test file to check all DEF file symbols are present by trying
 343  * to link to all of them. This is *not* intended to be run!
 344  */
 345
 346 int main()
 347 {
 348 EOF
 349         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 350                 if $do_ssl == 1;
 351
 352         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 353                 if $do_crypto == 1;
 354
 355         print "}\n";
 356
 357 } else {
 358
 359         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 360                 if $do_ssl == 1;
 361
 362         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 363                 if $do_crypto == 1;
 364
 365 }
 366
 367
 368 sub do_defs
 369 {
 370         my($name,$files,$symhacksfile)=@_;
 371         my $file;
 372         my @ret;
 373         my %syms;
 374         my %platform;           # For anything undefined, we assume ""
 375         my %kind;               # For anything undefined, we assume "FUNCTION"
 376         my %algorithm;          # For anything undefined, we assume ""
 377         my %variant;
 378         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 379                                 # is the same name as the original.
 380         my $cpp;
 381         my %unknown_algorithms = ();
 382         my $parens = 0;
 383
 384         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 385                 {
 386                 my $fn = catfile($config{sourcedir},$file);
 387                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 388                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
 389                 my $line = "", my $def= "";
 390                 my %tag = (
 391                         (map { $_ => 0 } @known_platforms),
 392                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 393                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 394                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 395                         NOPROTO         => 0,
 396                         PERL5           => 0,
 397                         _WINDLL         => 0,
 398                         CONST_STRICT    => 0,
 399                         TRUE            => 1,
 400                 );
 401                 my $symhacking = $file eq $symhacksfile;
 402                 my @current_platforms = ();
 403                 my @current_algorithms = ();
 404
 405                 # params: symbol, alias, platforms, kind
 406                 # The reason to put this subroutine in a variable is that
 407                 # it will otherwise create it's own, unshared, version of
 408                 # %tag and %variant...
 409                 my $make_variant = sub
 410                 {
 411                         my ($s, $a, $p, $k) = @_;
 412                         my ($a1, $a2);
 413
 414                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 415                         if (defined($p))
 416                         {
 417                                 $a1 = join(",",$p,
 418                                            grep(!/^$/,
 419                                                 map { $tag{$_} == 1 ? $_ : "" }
 420                                                 @known_platforms));
 421                         }
 422                         else
 423                         {
 424                                 $a1 = join(",",
 425                                            grep(!/^$/,
 426                                                 map { $tag{$_} == 1 ? $_ : "" }
 427                                                 @known_platforms));
 428                         }
 429                         $a2 = join(",",
 430                                    grep(!/^$/,
 431                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 432                                         @known_ossl_platforms));
 433                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 434                         if ($a1 eq "") { $a1 = $a2; }
 435                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 436                         if ($a eq $s)
 437                         {
 438                                 if (!defined($variant_cnt{$s}))
 439                                 {
 440                                         $variant_cnt{$s} = 0;
 441                                 }
 442                                 $variant_cnt{$s}++;
 443                                 $a .= "{$variant_cnt{$s}}";
 444                         }
 445                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 446                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 447                         if (!grep(/^$togrep$/,
 448                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 449                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 450                                 $variant{$s} .= $toadd;
 451                         }
 452                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 453                 };
 454
 455                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 456                 while(<IN>) {
 457                         if($parens > 0) {
 458                                 #Inside a DEPRECATEDIN
 459                                 $stored_multiline .= $_;
 460                                 $stored_multiline =~ s|\R$||; # Better chomp
 461                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 462                                 $parens = count_parens($stored_multiline);
 463                                 if ($parens == 0) {
 464                                         $def .= do_deprecated($stored_multiline,
 465                                                         \@current_platforms,
 466                                                         \@current_algorithms);
 467                                 }
 468                                 next;
 469                         }
 470                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 471                                 {
 472                                 undef @tag;
 473                                 last;
 474                                 }
 475                         if ($line ne '') {
 476                                 $_ = $line . $_;
 477                                 $line = '';
 478                         }
 479
 480                         if (/\\$/) {
 481                                 $line = $`; # keep what was before the backslash
 482                                 next;
 483                         }
 484
 485                         if(/\/\*/) {
 486                                 if (not /\*\//) {       # multiline comment...
 487                                         $line = $_;     # ... just accumulate
 488                                         next;
 489                                 } else {
 490                                         s/\/\*.*?\*\///gs;# wipe it
 491                                 }
 492                         }
 493
 494                         if ($cpp) {
 495                                 $cpp++ if /^#\s*if/;
 496                                 $cpp-- if /^#\s*endif/;
 497                                 next;
 498                         }
 499                         if (/^#.*ifdef.*cplusplus/) {
 500                                 $cpp = 1;
 501                                 next;
 502                         }
 503
 504                         s/{[^{}]*}//gs;                      # ignore {} blocks
 505                         print STDERR "DEBUG: \$def=\"$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 = $#tag;
 589                                 die "$file unmatched else\n" if $tag_i < 0;
 590                                 while($tag[$tag_i] ne "-") {
 591                                         my $t=$tag[$tag_i];
 592                                         $tag{$t}= -$tag{$t};
 593                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 594                                         $tag_i--;
 595                                 }
 596                         } elsif (/^\#\s*if\s+1/) {
 597                                 push(@tag,"-");
 598                                 # Dummy tag
 599                                 push(@tag,"TRUE");
 600                                 $tag{"TRUE"}=1;
 601                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 602                         } elsif (/^\#\s*if\s+0/) {
 603                                 push(@tag,"-");
 604                                 # Dummy tag
 605                                 push(@tag,"TRUE");
 606                                 $tag{"TRUE"}=-1;
 607                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 608                         } elsif (/^\#\s*if\s+/) {
 609                                 #Some other unrecognized "if" style
 610                                 push(@tag,"-");
 611                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 612                                  && $symhacking && $tag{'TRUE'} != -1) {
 613                                 # This is for aliasing.  When we find an alias,
 614                                 # we have to invert
 615                                 &$make_variant($1,$2);
 616                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 617                         }
 618                         if (/^\#/) {
 619                                 @current_platforms =
 620                                     grep(!/^$/,
 621                                          map { $tag{$_} == 1 ? $_ :
 622                                                    $tag{$_} == -1 ? "!".$_  : "" }
 623                                          @known_platforms);
 624                                 push @current_platforms
 625                                     , grep(!/^$/,
 626                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 627                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 628                                            @known_ossl_platforms);
 629                                 @current_algorithms = ();
 630                                 @current_algorithms =
 631                                     grep(!/^$/,
 632                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 633                                          @known_algorithms);
 634                                 push @current_algorithms
 635                                     , grep(!/^$/,
 636                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 637                                          @known_algorithms);
 638                                 $def .=
 639                                     "#INFO:"
 640                                         .join(',',@current_platforms).":"
 641                                             .join(',',@current_algorithms).";";
 642                                 next;
 643                         }
 644                         if ($tag{'TRUE'} != -1) {
 645                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 646                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 647                                         next;
 648                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 649                                         $def .= "int d2i_$3(void);";
 650                                         $def .= "int i2d_$3(void);";
 651                                         # Variant for platforms that do not
 652                                         # have to access globale variables
 653                                         # in shared libraries through functions
 654                                         $def .=
 655                                             "#INFO:"
 656                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 657                                                     .join(',',@current_algorithms).";";
 658                                         $def .= "OPENSSL_EXTERN int $2_it;";
 659                                         $def .=
 660                                             "#INFO:"
 661                                                 .join(',',@current_platforms).":"
 662                                                     .join(',',@current_algorithms).";";
 663                                         # Variant for platforms that have to
 664                                         # access globale variables in shared
 665                                         # libraries through functions
 666                                         &$make_variant("$2_it","$2_it",
 667                                                       "EXPORT_VAR_AS_FUNCTION",
 668                                                       "FUNCTION");
 669                                         next;
 670                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 671                                         $def .= "int d2i_$3(void);";
 672                                         $def .= "int i2d_$3(void);";
 673                                         $def .= "int $3_free(void);";
 674                                         $def .= "int $3_new(void);";
 675                                         # Variant for platforms that do not
 676                                         # have to access globale variables
 677                                         # in shared libraries through functions
 678                                         $def .=
 679                                             "#INFO:"
 680                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 681                                                     .join(',',@current_algorithms).";";
 682                                         $def .= "OPENSSL_EXTERN int $2_it;";
 683                                         $def .=
 684                                             "#INFO:"
 685                                                 .join(',',@current_platforms).":"
 686                                                     .join(',',@current_algorithms).";";
 687                                         # Variant for platforms that have to
 688                                         # access globale variables in shared
 689                                         # libraries through functions
 690                                         &$make_variant("$2_it","$2_it",
 691                                                       "EXPORT_VAR_AS_FUNCTION",
 692                                                       "FUNCTION");
 693                                         next;
 694                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 695                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 696                                         $def .= "int d2i_$1(void);";
 697                                         $def .= "int i2d_$1(void);";
 698                                         $def .= "int $1_free(void);";
 699                                         $def .= "int $1_new(void);";
 700                                         # Variant for platforms that do not
 701                                         # have to access globale variables
 702                                         # in shared libraries through functions
 703                                         $def .=
 704                                             "#INFO:"
 705                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 706                                                     .join(',',@current_algorithms).";";
 707                                         $def .= "OPENSSL_EXTERN int $1_it;";
 708                                         $def .=
 709                                             "#INFO:"
 710                                                 .join(',',@current_platforms).":"
 711                                                     .join(',',@current_algorithms).";";
 712                                         # Variant for platforms that have to
 713                                         # access globale variables in shared
 714                                         # libraries through functions
 715                                         &$make_variant("$1_it","$1_it",
 716                                                       "EXPORT_VAR_AS_FUNCTION",
 717                                                       "FUNCTION");
 718                                         next;
 719                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 720                                         $def .= "int d2i_$2(void);";
 721                                         $def .= "int i2d_$2(void);";
 722                                         # Variant for platforms that do not
 723                                         # have to access globale variables
 724                                         # in shared libraries through functions
 725                                         $def .=
 726                                             "#INFO:"
 727                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 728                                                     .join(',',@current_algorithms).";";
 729                                         $def .= "OPENSSL_EXTERN int $2_it;";
 730                                         $def .=
 731                                             "#INFO:"
 732                                                 .join(',',@current_platforms).":"
 733                                                     .join(',',@current_algorithms).";";
 734                                         # Variant for platforms that have to
 735                                         # access globale variables in shared
 736                                         # libraries through functions
 737                                         &$make_variant("$2_it","$2_it",
 738                                                       "EXPORT_VAR_AS_FUNCTION",
 739                                                       "FUNCTION");
 740                                         next;
 741                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 742                                         $def .= "int $1_free(void);";
 743                                         $def .= "int $1_new(void);";
 744                                         next;
 745                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 746                                         $def .= "int d2i_$2(void);";
 747                                         $def .= "int i2d_$2(void);";
 748                                         $def .= "int $2_free(void);";
 749                                         $def .= "int $2_new(void);";
 750                                         # Variant for platforms that do not
 751                                         # have to access globale variables
 752                                         # in shared libraries through functions
 753                                         $def .=
 754                                             "#INFO:"
 755                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 756                                                     .join(',',@current_algorithms).";";
 757                                         $def .= "OPENSSL_EXTERN int $2_it;";
 758                                         $def .=
 759                                             "#INFO:"
 760                                                 .join(',',@current_platforms).":"
 761                                                     .join(',',@current_algorithms).";";
 762                                         # Variant for platforms that have to
 763                                         # access globale variables in shared
 764                                         # libraries through functions
 765                                         &$make_variant("$2_it","$2_it",
 766                                                       "EXPORT_VAR_AS_FUNCTION",
 767                                                       "FUNCTION");
 768                                         next;
 769                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 770                                         # Variant for platforms that do not
 771                                         # have to access globale variables
 772                                         # in shared libraries through functions
 773                                         $def .=
 774                                             "#INFO:"
 775                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 776                                                     .join(',',@current_algorithms).";";
 777                                         $def .= "OPENSSL_EXTERN int $1_it;";
 778                                         $def .=
 779                                             "#INFO:"
 780                                                 .join(',',@current_platforms).":"
 781                                                     .join(',',@current_algorithms).";";
 782                                         # Variant for platforms that have to
 783                                         # access globale variables in shared
 784                                         # libraries through functions
 785                                         &$make_variant("$1_it","$1_it",
 786                                                       "EXPORT_VAR_AS_FUNCTION",
 787                                                       "FUNCTION");
 788                                         next;
 789                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 790                                         $def .= "int i2d_$1_NDEF(void);";
 791                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 792                                         next;
 793                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 794                                         $def .= "int $1_print_ctx(void);";
 795                                         next;
 796                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 797                                         $def .= "int $2_print_ctx(void);";
 798                                         next;
 799                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 800                                         next;
 801                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 802                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 803                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 804                                         $def .=
 805                                             "#INFO:"
 806                                                 .join(',',@current_platforms).":"
 807                                                     .join(',',@current_algorithms).";";
 808                                         $def .= "int PEM_read_$1(void);";
 809                                         $def .= "int PEM_write_$1(void);";
 810                                         $def .=
 811                                             "#INFO:"
 812                                                 .join(',',@current_platforms).":"
 813                                                     .join(',',@current_algorithms).";";
 814                                         # Things that are everywhere
 815                                         $def .= "int PEM_read_bio_$1(void);";
 816                                         $def .= "int PEM_write_bio_$1(void);";
 817                                         next;
 818                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 819                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 820                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 821                                         $def .=
 822                                             "#INFO:"
 823                                                 .join(',',@current_platforms).":"
 824                                                     .join(',',@current_algorithms).";";
 825                                         $def .= "int PEM_write_$1(void);";
 826                                         $def .=
 827                                             "#INFO:"
 828                                                 .join(',',@current_platforms).":"
 829                                                     .join(',',@current_algorithms).";";
 830                                         # Things that are everywhere
 831                                         $def .= "int PEM_write_bio_$1(void);";
 832                                         next;
 833                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 834                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 835                                         $def .=
 836                                             "#INFO:"
 837                                                 .join(',',@current_platforms).":"
 838                                                     .join(',',@current_algorithms).";";
 839                                         $def .= "int PEM_read_$1(void);";
 840                                         $def .=
 841                                             "#INFO:"
 842                                                 .join(',',@current_platforms).":"
 843                                                     .join(',',@current_algorithms).";";
 844                                         # Things that are everywhere
 845                                         $def .= "int PEM_read_bio_$1(void);";
 846                                         next;
 847                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 848                                         # Variant for platforms that do not
 849                                         # have to access globale variables
 850                                         # in shared libraries through functions
 851                                         $def .=
 852                                             "#INFO:"
 853                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 854                                                     .join(',',@current_algorithms).";";
 855                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 856                                         $def .=
 857                                             "#INFO:"
 858                                                 .join(',',@current_platforms).":"
 859                                                     .join(',',@current_algorithms).";";
 860                                         # Variant for platforms that have to
 861                                         # access globale variables in shared
 862                                         # libraries through functions
 863                                         &$make_variant("_shadow_$2","_shadow_$2",
 864                                                       "EXPORT_VAR_AS_FUNCTION",
 865                                                       "FUNCTION");
 866                                 } elsif (/^\s*DEPRECATEDIN/) {
 867                                         $parens = count_parens($_);
 868                                         if ($parens == 0) {
 869                                                 $def .= do_deprecated($_,
 870                                                         \@current_platforms,
 871                                                         \@current_algorithms);
 872                                         } else {
 873                                                 $stored_multiline = $_;
 874                                                 $stored_multiline =~ s|\R$||;
 875                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 876                                                 next;
 877                                         }
 878                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 879                                         if (/\{|\/\*|\([^\)]*$/) {
 880                                                 $line = $_;
 881                                         } else {
 882                                                 $def .= $_;
 883                                         }
 884                                 }
 885                         }
 886                 }
 887                 close(IN);
 888                 die "$file: Unmatched tags\n" if $#tag >= 0;
 889
 890                 my $algs;
 891                 my $plays;
 892
 893                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 894                 foreach (split /;/, $def) {
 895                         my $s; my $k = "FUNCTION"; my $p; my $a;
 896                         s/^[\n\s]*//g;
 897                         s/[\n\s]*$//g;
 898                         next if(/\#undef/);
 899                         next if(/typedef\W/);
 900                         next if(/\#define/);
 901
 902                         # Reduce argument lists to empty ()
 903                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 904                         while(/\(.*\)/s) {
 905                                 s/\([^\(\)]+\)/\{\}/gs;
 906                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 907                         }
 908                         # pretend as we didn't use curly braces: {} -> ()
 909                         s/\{\}/\(\)/gs;
 910
 911                         s/STACK_OF\(\)/void/gs;
 912                         s/LHASH_OF\(\)/void/gs;
 913
 914                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 915                         if (/^\#INFO:([^:]*):(.*)$/) {
 916                                 $plats = $1;
 917                                 $algs = $2;
 918                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 919                                 next;
 920                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 921                                 $s = $1;
 922                                 $k = "VARIABLE";
 923                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 924                         } elsif (/TYPEDEF_\w+_OF/s) {
 925                                 next;
 926                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 927                                 $s = $1;                # a function name!
 928                                 print STDERR "DEBUG: found function $s\n" if $debug;
 929                         } elsif (/\(/ and not (/=/)) {
 930                                 print STDERR "File $file: cannot parse: $_;\n";
 931                                 next;
 932                         } else {
 933                                 next;
 934                         }
 935
 936                         $syms{$s} = 1;
 937                         $kind{$s} = $k;
 938
 939                         $p = $plats;
 940                         $a = $algs;
 941
 942                         $platform{$s} =
 943                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 944                         $algorithm{$s} .= ','.$a;
 945
 946                         if (defined($variant{$s})) {
 947                                 foreach $v (split /;/,$variant{$s}) {
 948                                         (my $r, my $p, my $k) = split(/:/,$v);
 949                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 950                                         $syms{$r} = 1;
 951                                         if (!defined($k)) { $k = $kind{$s}; }
 952                                         $kind{$r} = $k."(".$s.")";
 953                                         $algorithm{$r} = $algorithm{$s};
 954                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 955                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 956                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 957                                 }
 958                         }
 959                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 960                 }
 961         }
 962
 963         # Prune the returned symbols
 964
 965         delete $syms{"bn_dump1"};
 966         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 967
 968         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 969         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 970         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 971         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 972         $platform{"EVP_sha384"} = "!VMSVAX";
 973         $platform{"EVP_sha512"} = "!VMSVAX";
 974         $platform{"SHA384_Init"} = "!VMSVAX";
 975         $platform{"SHA384_Transform"} = "!VMSVAX";
 976         $platform{"SHA384_Update"} = "!VMSVAX";
 977         $platform{"SHA384_Final"} = "!VMSVAX";
 978         $platform{"SHA384"} = "!VMSVAX";
 979         $platform{"SHA512_Init"} = "!VMSVAX";
 980         $platform{"SHA512_Transform"} = "!VMSVAX";
 981         $platform{"SHA512_Update"} = "!VMSVAX";
 982         $platform{"SHA512_Final"} = "!VMSVAX";
 983         $platform{"SHA512"} = "!VMSVAX";
 984
 985
 986         # Info we know about
 987
 988         push @ret, map { $_."\\".&info_string($_,"EXIST",
 989                                               $platform{$_},
 990                                               $kind{$_},
 991                                               $algorithm{$_}) } keys %syms;
 992
 993         if (keys %unknown_algorithms) {
 994                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 995                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 996         }
 997         return(@ret);
 998 }
 999
1000 # Param: string of comma-separated platform-specs.
1001 sub reduce_platforms
1002 {
1003         my ($platforms) = @_;
1004         my $pl = defined($platforms) ? $platforms : "";
1005         my %p = map { $_ => 0 } split /,/, $pl;
1006         my $ret;
1007
1008         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1009             if $debug;
1010         # We do this, because if there's code like the following, it really
1011         # means the function exists in all cases and should therefore be
1012         # everywhere.  By increasing and decreasing, we may attain 0:
1013         #
1014         # ifndef WIN16
1015         #    int foo();
1016         # else
1017         #    int _fat foo();
1018         # endif
1019         foreach $platform (split /,/, $pl) {
1020                 if ($platform =~ /^!(.*)$/) {
1021                         $p{$1}--;
1022                 } else {
1023                         $p{$platform}++;
1024                 }
1025         }
1026         foreach $platform (keys %p) {
1027                 if ($p{$platform} == 0) { delete $p{$platform}; }
1028         }
1029
1030         delete $p{""};
1031
1032         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1033         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1034             if $debug;
1035         return $ret;
1036 }
1037
1038 sub info_string
1039 {
1040         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1041
1042         my %a = defined($algorithms) ?
1043             map { $_ => 1 } split /,/, $algorithms : ();
1044         my $k = defined($kind) ? $kind : "FUNCTION";
1045         my $ret;
1046         my $p = &reduce_platforms($platforms);
1047
1048         delete $a{""};
1049
1050         $ret = $exist;
1051         $ret .= ":".$p;
1052         $ret .= ":".$k;
1053         $ret .= ":".join(',',sort keys %a);
1054         return $ret;
1055 }
1056
1057 sub maybe_add_info
1058 {
1059         (my $name, *nums, my @symbols) = @_;
1060         my $sym;
1061         my $new_info = 0;
1062         my %syms=();
1063
1064         foreach $sym (@symbols) {
1065                 (my $s, my $i) = split /\\/, $sym;
1066                 if (defined($nums{$s})) {
1067                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1068                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1069                         if (!defined($dummy) || $i ne $dummy) {
1070                                 $nums{$s} = $n."\\".$vers."\\".$i;
1071                                 $new_info++;
1072                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1073                         }
1074                 }
1075                 $syms{$s} = 1;
1076         }
1077
1078         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1079         foreach $sym (@s) {
1080                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1081                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1082                         $new_info++;
1083                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1084                 }
1085         }
1086         if ($new_info) {
1087                 print STDERR "$name: $new_info old symbols have updated info\n";
1088                 if (!$do_rewrite) {
1089                         print STDERR "You should do a rewrite to fix this.\n";
1090                 }
1091         } else {
1092         }
1093 }
1094
1095 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1096 sub is_valid
1097 {
1098         my ($keywords_txt,$platforms) = @_;
1099         my (@keywords) = split /,/,$keywords_txt;
1100         my ($falsesum, $truesum) = (0, 1);
1101
1102         # Param: one keyword
1103         sub recognise
1104         {
1105                 my ($keyword,$platforms) = @_;
1106
1107                 if ($platforms) {
1108                         # platforms
1109                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1110                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1111                         if ($keyword eq "VMS" && $VMS) { return 1; }
1112                         if ($keyword eq "WIN32" && $W32) { return 1; }
1113                         if ($keyword eq "WINNT" && $NT) { return 1; }
1114                         if ($keyword eq "OS2" && $OS2) { return 1; }
1115                         # Special platforms:
1116                         # EXPORT_VAR_AS_FUNCTION means that global variables
1117                         # will be represented as functions.  This currently
1118                         # only happens on VMS-VAX.
1119                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1120                                 return 1;
1121                         }
1122                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1123                         return 0;
1124                 } else {
1125                         # algorithms
1126                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1127
1128                         # Nothing recognise as true
1129                         return 1;
1130                 }
1131         }
1132
1133         foreach $k (@keywords) {
1134                 if ($k =~ /^!(.*)$/) {
1135                         $falsesum += &recognise($1,$platforms);
1136                 } else {
1137                         $truesum *= &recognise($k,$platforms);
1138                 }
1139         }
1140         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1141         return (!$falsesum) && $truesum;
1142 }
1143
1144 sub print_test_file
1145 {
1146         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1147         my $n = 1; my @e; my @r;
1148         my $sym; my $prev = ""; my $prefSSLeay;
1149
1150         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1151         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1152         @symbols=((sort @e),(sort @r));
1153
1154         foreach $sym (@symbols) {
1155                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1156                 my $v = 0;
1157                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1158                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1159                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1160                 if (!defined($nums{$s})) {
1161                         print STDERR "Warning: $s does not have a number assigned\n"
1162                             if(!$do_update);
1163                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1164                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1165                         if ($prev eq $s2) {
1166                                 print OUT "\t/* The following has already appeared previously */\n";
1167                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1168                         }
1169                         $prev = $s2;    # To warn about duplicates...
1170
1171                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1172                         if ($v) {
1173                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1174                         } else {
1175                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1176                         }
1177                 }
1178         }
1179 }
1180
1181 sub get_version
1182 {
1183    return $config{version};
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 $symvtextcount = 0;
1200
1201         if ($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                 print OUT <<"EOF";
1234 CASE_SENSITIVE=YES
1235 SYMBOL_VECTOR=(-
1236 EOF
1237                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1238                 }
1239
1240         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1241         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1242         if ($VMS) {
1243             # VMS needs to have the symbols on slot number order
1244             @symbols=(map { $_->[1] }
1245                       sort { $a->[0] <=> $b->[0] }
1246                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1247                             die "Error: $s doesn't have a number assigned\n"
1248                                 if !defined($nums{$s});
1249                             (my $n, my @rest) = split /\\/, $nums{$s};
1250                             [ $n, $_ ] } (@e, @r, @v));
1251         } else {
1252             @symbols=((sort @e),(sort @r), (sort @v));
1253         }
1254
1255         my ($baseversion, $currversion) = get_openssl_version();
1256         my $thisversion;
1257         do {
1258                 if (!defined($thisversion)) {
1259                         $thisversion = $baseversion;
1260                 } else {
1261                         $thisversion = get_next_version($thisversion);
1262                 }
1263                 foreach $sym (@symbols) {
1264                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1265                         my $v = 0;
1266                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1267                         if (!defined($nums{$s})) {
1268                                 die "Error: $s does not have a number assigned\n"
1269                                         if(!$do_update);
1270                         } else {
1271                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1272                                 next if $symversion ne $thisversion;
1273                                 my %pf = ();
1274                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1275                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1276                                 if (is_valid($p,1) && is_valid($a,0)) {
1277                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1278                                         if ($prev eq $s2) {
1279                                                 print STDERR "Warning: Symbol '",$s2,
1280                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1281                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1282                                         }
1283                                         $prev = $s2;    # To warn about duplicates...
1284                                         if($linux) {
1285                                                 if ($symversion ne $prevsymversion) {
1286                                                         if ($prevsymversion ne "") {
1287                                                                 if ($prevprevsymversion ne "") {
1288                                                                         print OUT "} OPENSSL_"
1289                                                                                                 ."$prevprevsymversion;\n\n";
1290                                                                 } else {
1291                                                                         print OUT "};\n\n";
1292                                                                 }
1293                                                         }
1294                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1295                                                         $prevprevsymversion = $prevsymversion;
1296                                                         $prevsymversion = $symversion;
1297                                                 }
1298                                                 print OUT "        $s2;\n";
1299                                         } elsif ($VMS) {
1300                                             while(++$prevnum < $n) {
1301                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1302                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1303                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1304                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1305                                                 }
1306                                                 if ($symvtextcount == 16) {
1307                                                     # Take away first comma
1308                                                     $symline =~ s/,//;
1309                                                 }
1310                                                 print OUT $symline;
1311                                                 $symvtextcount += length($symline) - 2;
1312                                             }
1313                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1314                                             my $symtype=
1315                                                 $v ? "DATA" : "PROCEDURE";
1316                                             my $symline=
1317                                                 ($s_uc ne $s
1318                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1319                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1320                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1321                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1322                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1323                                             }
1324                                             if ($symvtextcount == 16) {
1325                                                 # Take away first comma
1326                                                 $symline =~ s/,//;
1327                                             }
1328                                             print OUT $symline;
1329                                             $symvtextcount += length($symline) - 2;
1330                                         } elsif($v && !$OS2) {
1331                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1332                                                                 ($W32)?"":"_",$s2,$n;
1333                                         } else {
1334                                                 printf OUT "    %s%-39s @%d\n",
1335                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1336                                         }
1337                                 }
1338                         }
1339                 }
1340         } while ($thisversion ne $currversion);
1341         if ($linux) {
1342                 if ($prevprevsymversion ne "") {
1343                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1344                 } else {
1345                         print OUT "    local: *;\n};\n\n";
1346                 }
1347         } elsif ($VMS) {
1348             print OUT ")\n";
1349             (my $libvmaj, my $libvmin, my $libvedit) =
1350                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1351             # The reason to multiply the edit number with 100 is to make space
1352             # for the possibility that we want to encode the patch letters
1353             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1354         }
1355         printf OUT "\n";
1356 }
1357
1358 sub load_numbers
1359 {
1360         my($name)=@_;
1361         my(@a,%ret);
1362         my $prevversion;
1363
1364         $max_num = 0;
1365         $num_noinfo = 0;
1366         $prev = "";
1367         $prev_cnt = 0;
1368
1369         my ($baseversion, $currversion) = get_openssl_version();
1370
1371         open(IN,"<$name") || die "unable to open $name:$!\n";
1372         while (<IN>) {
1373                 s|\R$||;        # Better chomp
1374                 s/#.*$//;
1375                 next if /^\s*$/;
1376                 @a=split;
1377                 if (defined $ret{$a[0]}) {
1378                         # This is actually perfectly OK
1379                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1380                 }
1381                 if ($max_num > $a[1]) {
1382                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1383                 }
1384                 elsif ($max_num == $a[1]) {
1385                         # This is actually perfectly OK
1386                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1387                         if ($a[0] eq $prev) {
1388                                 $prev_cnt++;
1389                                 $a[0] .= "{$prev_cnt}";
1390                         }
1391                 }
1392                 else {
1393                         $prev_cnt = 0;
1394                 }
1395                 if ($#a < 2) {
1396                         # Existence will be proven later, in do_defs
1397                         $ret{$a[0]}=$a[1];
1398                         $num_noinfo++;
1399                 } else {
1400                         #Sanity check the version number
1401                         if (defined $prevversion) {
1402                                 check_version_lte($prevversion, $a[2]);
1403                         }
1404                         check_version_lte($a[2], $currversion);
1405                         $prevversion = $a[2];
1406                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1407                 }
1408                 $max_num = $a[1] if $a[1] > $max_num;
1409                 $prev=$a[0];
1410         }
1411         if ($num_noinfo) {
1412                 print STDERR "Warning: $num_noinfo symbols were without info.";
1413                 if ($do_rewrite) {
1414                         printf STDERR "  The rewrite will fix this.\n";
1415                 } else {
1416                         printf STDERR "  You should do a rewrite to fix this.\n";
1417                 }
1418         }
1419         close(IN);
1420         return(%ret);
1421 }
1422
1423 sub parse_number
1424 {
1425         (my $str, my $what) = @_;
1426         (my $n, my $v, my $i) = split(/\\/,$str);
1427         if ($what eq "n") {
1428                 return $n;
1429         } else {
1430                 return $i;
1431         }
1432 }
1433
1434 sub rewrite_numbers
1435 {
1436         (*OUT,$name,*nums,@symbols)=@_;
1437         my $thing;
1438
1439         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1440         my $r; my %r; my %rsyms;
1441         foreach $r (@r) {
1442                 (my $s, my $i) = split /\\/, $r;
1443                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1444                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1445                 $r{$a} = $s."\\".$i;
1446                 $rsyms{$s} = 1;
1447         }
1448
1449         my %syms = ();
1450         foreach $_ (@symbols) {
1451                 (my $n, my $i) = split /\\/;
1452                 $syms{$n} = 1;
1453         }
1454
1455         my @s=sort {
1456             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1457             || $a cmp $b
1458         } keys %nums;
1459         foreach $sym (@s) {
1460                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1461                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1462                 next if defined($rsyms{$sym});
1463                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1464                 $i="NOEXIST::FUNCTION:"
1465                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1466                 my $s2 = $sym;
1467                 $s2 =~ s/\{[0-9]+\}$//;
1468                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1469                 if (exists $r{$sym}) {
1470                         (my $s, $i) = split /\\/,$r{$sym};
1471                         my $s2 = $s;
1472                         $s2 =~ s/\{[0-9]+\}$//;
1473                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1474                 }
1475         }
1476 }
1477
1478 sub update_numbers
1479 {
1480         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1481         my $new_syms = 0;
1482         my $basevers;
1483         my $vers;
1484
1485         ($basevers, $vers) = get_openssl_version();
1486
1487         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1488         my $r; my %r; my %rsyms;
1489         foreach $r (@r) {
1490                 (my $s, my $i) = split /\\/, $r;
1491                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1492                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1493                 $r{$a} = $s."\\".$i;
1494                 $rsyms{$s} = 1;
1495         }
1496
1497         foreach $sym (@symbols) {
1498                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1499                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1500                 next if defined($rsyms{$sym});
1501                 die "ERROR: Symbol $sym had no info attached to it."
1502                     if $i eq "";
1503                 if (!exists $nums{$s}) {
1504                         $new_syms++;
1505                         my $s2 = $s;
1506                         $s2 =~ s/\{[0-9]+\}$//;
1507                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1508                         if (exists $r{$s}) {
1509                                 ($s, $i) = split /\\/,$r{$s};
1510                                 $s =~ s/\{[0-9]+\}$//;
1511                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1512                         }
1513                 }
1514         }
1515         if($new_syms) {
1516                 print STDERR "$name: Added $new_syms new symbols\n";
1517         } else {
1518                 print STDERR "$name: No new symbols added\n";
1519         }
1520 }
1521
1522 sub check_existing
1523 {
1524         (*nums, my @symbols)=@_;
1525         my %existing; my @remaining;
1526         @remaining=();
1527         foreach $sym (@symbols) {
1528                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1529                 $existing{$s}=1;
1530         }
1531         foreach $sym (keys %nums) {
1532                 if (!exists $existing{$sym}) {
1533                         push @remaining, $sym;
1534                 }
1535         }
1536         if(@remaining) {
1537                 print STDERR "The following symbols do not seem to exist:\n";
1538                 foreach $sym (@remaining) {
1539                         print STDERR "\t",$sym,"\n";
1540                 }
1541         }
1542 }
1543
1544 sub count_parens
1545 {
1546         my $line = shift(@_);
1547
1548         my $open = $line =~ tr/\(//;
1549         my $close = $line =~ tr/\)//;
1550
1551         return $open - $close;
1552 }
1553
1554 #Parse opensslv.h to get the current version number. Also work out the base
1555 #version, i.e. the lowest version number that is binary compatible with this
1556 #version
1557 sub get_openssl_version()
1558 {
1559         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1560         open (IN, "$fn") || die "Can't open opensslv.h";
1561
1562         while(<IN>) {
1563                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1564                         my $suffix = $2;
1565                         (my $baseversion = $1) =~ s/\./_/g;
1566                         close IN;
1567                         return ($baseversion."0", $baseversion.$suffix);
1568                 }
1569         }
1570         die "Can't find OpenSSL version number\n";
1571 }
1572
1573 #Given an OpenSSL version number, calculate the next version number. If the
1574 #version number gets to a.b.czz then we go to a.b.(c+1)
1575 sub get_next_version()
1576 {
1577         my $thisversion = shift;
1578
1579         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1580
1581         if ($letter eq "zz") {
1582                 my $lastnum = substr($base, -1);
1583                 return substr($base, 0, length($base)-1).(++$lastnum);
1584         }
1585         return $base.get_next_letter($letter);
1586 }
1587
1588 #Given the letters off the end of an OpenSSL version string, calculate what
1589 #the letters for the next release would be.
1590 sub get_next_letter()
1591 {
1592         my $thisletter = shift;
1593         my $baseletter = "";
1594         my $endletter;
1595
1596         if ($thisletter eq "") {
1597                 return "a";
1598         }
1599         if ((length $thisletter) > 1) {
1600                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1601         } else {
1602                 $endletter = $thisletter;
1603         }
1604
1605         if ($endletter eq "z") {
1606                 return $thisletter."a";
1607         } else {
1608                 return $baseletter.(++$endletter);
1609         }
1610 }
1611
1612 #Check if a version is less than or equal to the current version. Its a fatal
1613 #error if not. They must also only differ in letters, or the last number (i.e.
1614 #the first two numbers must be the same)
1615 sub check_version_lte()
1616 {
1617         my ($testversion, $currversion) = @_;
1618         my $lentv;
1619         my $lencv;
1620         my $cvbase;
1621
1622         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1623         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1624
1625         #Die if we can't parse the version numbers or they don't look sane
1626         die "Invalid version number: $testversion and $currversion\n"
1627                 if (!defined($cvnums) || !defined($tvnums)
1628                         || length($cvnums) != 5
1629                         || length($tvnums) != 5);
1630
1631         #If the base versions (without letters) don't match check they only differ
1632         #in the last number
1633         if ($cvnums ne $tvnums) {
1634                 die "Invalid version number: $testversion "
1635                         ."for current version $currversion\n"
1636                         if (substr($cvnums, -1) < substr($tvnums, -1)
1637                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1638                 return;
1639         }
1640         #If we get here then the base version (i.e. the numbers) are the same - they
1641         #only differ in the letters
1642
1643         $lentv = length $testversion;
1644         $lencv = length $currversion;
1645
1646         #If the testversion has more letters than the current version then it must
1647         #be later (or malformed)
1648         if ($lentv > $lencv) {
1649                 die "Invalid version number: $testversion "
1650                         ."is greater than $currversion\n";
1651         }
1652
1653         #Get the last letter from the current version
1654         my ($cvletter) = $currversion =~ /([a-z])$/;
1655         if (defined $cvletter) {
1656                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1657         } else {
1658                 $cvbase = $currversion;
1659         }
1660         die "Unable to parse version number $currversion" if (!defined $cvbase);
1661         my $tvbase;
1662         my ($tvletter) = $testversion =~ /([a-z])$/;
1663         if (defined $tvletter) {
1664                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1665         } else {
1666                 $tvbase = $testversion;
1667         }
1668         die "Unable to parse version number $testversion" if (!defined $tvbase);
1669
1670         if ($lencv > $lentv) {
1671                 #If current version has more letters than testversion then testversion
1672                 #minus the final letter must be a substring of the current version
1673                 die "Invalid version number $testversion "
1674                         ."is greater than $currversion or is invalid\n"
1675                         if (index($cvbase, $tvbase) != 0);
1676         } else {
1677                 #If both versions have the same number of letters then they must be
1678                 #equal up to the last letter, and the last letter in testversion must
1679                 #be less than or equal to the last letter in current version.
1680                 die "Invalid version number $testversion "
1681                         ."is greater than $currversion\n"
1682                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1683         }
1684 }
1685
1686 sub do_deprecated()
1687 {
1688         my ($decl, $plats, $algs) = @_;
1689         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1690             or die "Bad DEPRECTEDIN: $decl\n";
1691         my $info1 .= "#INFO:";
1692         $info1 .= join(',', @{$plats}) . ":";
1693         my $info2 = $info1;
1694         $info1 .= join(',',@{$algs}, $1) . ";";
1695         $info2 .= join(',',@{$algs}) . ";";
1696         return $info1 . $2 . ";" . $info2;
1697 }