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
 299 my $symhacks="include/openssl/symhacks.h";
 300
 301 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 302 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 303
 304 if ($do_update) {
 305
 306 if ($do_ssl == 1) {
 307
 308         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 309         if ($do_rewrite == 1) {
 310                 open(OUT, ">$ssl_num");
 311                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 312         } else {
 313                 open(OUT, ">>$ssl_num");
 314         }
 315         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 316         close OUT;
 317 }
 318
 319 if($do_crypto == 1) {
 320
 321         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 322         if ($do_rewrite == 1) {
 323                 open(OUT, ">$crypto_num");
 324                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 325         } else {
 326                 open(OUT, ">>$crypto_num");
 327         }
 328         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 329         close OUT;
 330 }
 331
 332 } elsif ($do_checkexist) {
 333         &check_existing(*ssl_list, @ssl_symbols)
 334                 if $do_ssl == 1;
 335         &check_existing(*crypto_list, @crypto_symbols)
 336                 if $do_crypto == 1;
 337 } elsif ($do_ctest || $do_ctestall) {
 338
 339         print <<"EOF";
 340
 341 /* Test file to check all DEF file symbols are present by trying
 342  * to link to all of them. This is *not* intended to be run!
 343  */
 344
 345 int main()
 346 {
 347 EOF
 348         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 349                 if $do_ssl == 1;
 350
 351         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 352                 if $do_crypto == 1;
 353
 354         print "}\n";
 355
 356 } else {
 357
 358         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 359                 if $do_ssl == 1;
 360
 361         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 362                 if $do_crypto == 1;
 363
 364 }
 365
 366
 367 sub do_defs
 368 {
 369         my($name,$files,$symhacksfile)=@_;
 370         my $file;
 371         my @ret;
 372         my %syms;
 373         my %platform;           # For anything undefined, we assume ""
 374         my %kind;               # For anything undefined, we assume "FUNCTION"
 375         my %algorithm;          # For anything undefined, we assume ""
 376         my %variant;
 377         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 378                                 # is the same name as the original.
 379         my $cpp;
 380         my %unknown_algorithms = ();
 381         my $parens = 0;
 382
 383         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 384                 {
 385                 my $fn = catfile($config{sourcedir},$file);
 386                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
 387                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
 388                 my $line = "", my $def= "";
 389                 my %tag = (
 390                         (map { $_ => 0 } @known_platforms),
 391                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 392                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 393                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 394                         NOPROTO         => 0,
 395                         PERL5           => 0,
 396                         _WINDLL         => 0,
 397                         CONST_STRICT    => 0,
 398                         TRUE            => 1,
 399                 );
 400                 my $symhacking = $file eq $symhacksfile;
 401                 my @current_platforms = ();
 402                 my @current_algorithms = ();
 403
 404                 # params: symbol, alias, platforms, kind
 405                 # The reason to put this subroutine in a variable is that
 406                 # it will otherwise create it's own, unshared, version of
 407                 # %tag and %variant...
 408                 my $make_variant = sub
 409                 {
 410                         my ($s, $a, $p, $k) = @_;
 411                         my ($a1, $a2);
 412
 413                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 414                         if (defined($p))
 415                         {
 416                                 $a1 = join(",",$p,
 417                                            grep(!/^$/,
 418                                                 map { $tag{$_} == 1 ? $_ : "" }
 419                                                 @known_platforms));
 420                         }
 421                         else
 422                         {
 423                                 $a1 = join(",",
 424                                            grep(!/^$/,
 425                                                 map { $tag{$_} == 1 ? $_ : "" }
 426                                                 @known_platforms));
 427                         }
 428                         $a2 = join(",",
 429                                    grep(!/^$/,
 430                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 431                                         @known_ossl_platforms));
 432                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 433                         if ($a1 eq "") { $a1 = $a2; }
 434                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 435                         if ($a eq $s)
 436                         {
 437                                 if (!defined($variant_cnt{$s}))
 438                                 {
 439                                         $variant_cnt{$s} = 0;
 440                                 }
 441                                 $variant_cnt{$s}++;
 442                                 $a .= "{$variant_cnt{$s}}";
 443                         }
 444                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 445                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 446                         if (!grep(/^$togrep$/,
 447                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 448                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 449                                 $variant{$s} .= $toadd;
 450                         }
 451                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 452                 };
 453
 454                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 455                 while(<IN>) {
 456                         if($parens > 0) {
 457                                 #Inside a DEPRECATEDIN
 458                                 $stored_multiline .= $_;
 459                                 $stored_multiline =~ s|\R$||; # Better chomp
 460                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 461                                 $parens = count_parens($stored_multiline);
 462                                 if ($parens == 0) {
 463                                         $def .= do_deprecated($stored_multiline,
 464                                                         \@current_platforms,
 465                                                         \@current_algorithms);
 466                                 }
 467                                 next;
 468                         }
 469                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 470                                 {
 471                                 undef @tag;
 472                                 last;
 473                                 }
 474                         if ($line ne '') {
 475                                 $_ = $line . $_;
 476                                 $line = '';
 477                         }
 478
 479                         if (/\\$/) {
 480                                 $line = $`; # keep what was before the backslash
 481                                 next;
 482                         }
 483
 484                         if(/\/\*/) {
 485                                 if (not /\*\//) {       # multiline comment...
 486                                         $line = $_;     # ... just accumulate
 487                                         next;
 488                                 } else {
 489                                         s/\/\*.*?\*\///gs;# wipe it
 490                                 }
 491                         }
 492
 493                         if ($cpp) {
 494                                 $cpp++ if /^#\s*if/;
 495                                 $cpp-- if /^#\s*endif/;
 496                                 next;
 497                         }
 498                         if (/^#.*ifdef.*cplusplus/) {
 499                                 $cpp = 1;
 500                                 next;
 501                         }
 502
 503                         s/{[^{}]*}//gs;                      # ignore {} blocks
 504                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 505                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 506                         if (/^\#\s*ifndef\s+(.*)/) {
 507                                 push(@tag,"-");
 508                                 push(@tag,$1);
 509                                 $tag{$1}=-1;
 510                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 511                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 512                                 push(@tag,"-");
 513                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 514                                         my $tmp_1 = $1;
 515                                         my $tmp_;
 516                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 517                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 518                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 519                                                 push(@tag,$1);
 520                                                 $tag{$1}=-1;
 521                                         }
 522                                 } else {
 523                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 524                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 525                                         push(@tag,$1);
 526                                         $tag{$1}=-1;
 527                                 }
 528                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 529                                 push(@tag,"-");
 530                                 push(@tag,$1);
 531                                 $tag{$1}=1;
 532                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 533                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 534                                 push(@tag,"-");
 535                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 536                                         my $tmp_1 = $1;
 537                                         my $tmp_;
 538                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 539                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 540                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 541                                                 push(@tag,$1);
 542                                                 $tag{$1}=1;
 543                                         }
 544                                 } else {
 545                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 546                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 547                                         push(@tag,$1);
 548                                         $tag{$1}=1;
 549                                 }
 550                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 551                                 my $tag_i = $#tag;
 552                                 while($tag[$tag_i] ne "-") {
 553                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 554                                                 $tag{$tag[$tag_i]}=2;
 555                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 556                                         }
 557                                         $tag_i--;
 558                                 }
 559                         } elsif (/^\#\s*endif/) {
 560                                 my $tag_i = $#tag;
 561                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 562                                         my $t=$tag[$tag_i];
 563                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 564                                         if ($tag{$t}==2) {
 565                                                 $tag{$t}=-1;
 566                                         } else {
 567                                                 $tag{$t}=0;
 568                                         }
 569                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 570                                         pop(@tag);
 571                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 572                                                 $t=$1;
 573                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 574                                                 $t=$1;
 575                                         } else {
 576                                                 $t="";
 577                                         }
 578                                         if ($t ne ""
 579                                             && !grep(/^$t$/, @known_algorithms)) {
 580                                                 $unknown_algorithms{$t} = 1;
 581                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 582                                         }
 583                                         $tag_i--;
 584                                 }
 585                                 pop(@tag);
 586                         } elsif (/^\#\s*else/) {
 587                                 my $tag_i = $#tag;
 588                                 die "$file unmatched else\n" if $tag_i < 0;
 589                                 while($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*if\s+/) {
 608                                 #Some other unrecognized "if" style
 609                                 push(@tag,"-");
 610                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 611                                  && $symhacking && $tag{'TRUE'} != -1) {
 612                                 # This is for aliasing.  When we find an alias,
 613                                 # we have to invert
 614                                 &$make_variant($1,$2);
 615                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 616                         }
 617                         if (/^\#/) {
 618                                 @current_platforms =
 619                                     grep(!/^$/,
 620                                          map { $tag{$_} == 1 ? $_ :
 621                                                    $tag{$_} == -1 ? "!".$_  : "" }
 622                                          @known_platforms);
 623                                 push @current_platforms
 624                                     , grep(!/^$/,
 625                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 626                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 627                                            @known_ossl_platforms);
 628                                 @current_algorithms = ();
 629                                 @current_algorithms =
 630                                     grep(!/^$/,
 631                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 632                                          @known_algorithms);
 633                                 push @current_algorithms
 634                                     , grep(!/^$/,
 635                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 636                                          @known_algorithms);
 637                                 $def .=
 638                                     "#INFO:"
 639                                         .join(',',@current_platforms).":"
 640                                             .join(',',@current_algorithms).";";
 641                                 next;
 642                         }
 643                         if ($tag{'TRUE'} != -1) {
 644                                 if (/^\s*DEFINE_STACK_OF\s*\(\s*(\w*)\s*\)/
 645                                                 || /^\s*DEFINE_STACK_OF_CONST\s*\(\s*(\w*)\s*\)/) {
 646                                         next;
 647                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 648                                         $def .= "int d2i_$3(void);";
 649                                         $def .= "int i2d_$3(void);";
 650                                         # Variant for platforms that do not
 651                                         # have to access globale variables
 652                                         # in shared libraries through functions
 653                                         $def .=
 654                                             "#INFO:"
 655                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 656                                                     .join(',',@current_algorithms).";";
 657                                         $def .= "OPENSSL_EXTERN int $2_it;";
 658                                         $def .=
 659                                             "#INFO:"
 660                                                 .join(',',@current_platforms).":"
 661                                                     .join(',',@current_algorithms).";";
 662                                         # Variant for platforms that have to
 663                                         # access globale variables in shared
 664                                         # libraries through functions
 665                                         &$make_variant("$2_it","$2_it",
 666                                                       "EXPORT_VAR_AS_FUNCTION",
 667                                                       "FUNCTION");
 668                                         next;
 669                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 670                                         $def .= "int d2i_$3(void);";
 671                                         $def .= "int i2d_$3(void);";
 672                                         $def .= "int $3_free(void);";
 673                                         $def .= "int $3_new(void);";
 674                                         # Variant for platforms that do not
 675                                         # have to access globale variables
 676                                         # in shared libraries through functions
 677                                         $def .=
 678                                             "#INFO:"
 679                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 680                                                     .join(',',@current_algorithms).";";
 681                                         $def .= "OPENSSL_EXTERN int $2_it;";
 682                                         $def .=
 683                                             "#INFO:"
 684                                                 .join(',',@current_platforms).":"
 685                                                     .join(',',@current_algorithms).";";
 686                                         # Variant for platforms that have to
 687                                         # access globale variables in shared
 688                                         # libraries through functions
 689                                         &$make_variant("$2_it","$2_it",
 690                                                       "EXPORT_VAR_AS_FUNCTION",
 691                                                       "FUNCTION");
 692                                         next;
 693                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 694                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 695                                         $def .= "int d2i_$1(void);";
 696                                         $def .= "int i2d_$1(void);";
 697                                         $def .= "int $1_free(void);";
 698                                         $def .= "int $1_new(void);";
 699                                         # Variant for platforms that do not
 700                                         # have to access globale variables
 701                                         # in shared libraries through functions
 702                                         $def .=
 703                                             "#INFO:"
 704                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 705                                                     .join(',',@current_algorithms).";";
 706                                         $def .= "OPENSSL_EXTERN int $1_it;";
 707                                         $def .=
 708                                             "#INFO:"
 709                                                 .join(',',@current_platforms).":"
 710                                                     .join(',',@current_algorithms).";";
 711                                         # Variant for platforms that have to
 712                                         # access globale variables in shared
 713                                         # libraries through functions
 714                                         &$make_variant("$1_it","$1_it",
 715                                                       "EXPORT_VAR_AS_FUNCTION",
 716                                                       "FUNCTION");
 717                                         next;
 718                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 719                                         $def .= "int d2i_$2(void);";
 720                                         $def .= "int i2d_$2(void);";
 721                                         # Variant for platforms that do not
 722                                         # have to access globale variables
 723                                         # in shared libraries through functions
 724                                         $def .=
 725                                             "#INFO:"
 726                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 727                                                     .join(',',@current_algorithms).";";
 728                                         $def .= "OPENSSL_EXTERN int $2_it;";
 729                                         $def .=
 730                                             "#INFO:"
 731                                                 .join(',',@current_platforms).":"
 732                                                     .join(',',@current_algorithms).";";
 733                                         # Variant for platforms that have to
 734                                         # access globale variables in shared
 735                                         # libraries through functions
 736                                         &$make_variant("$2_it","$2_it",
 737                                                       "EXPORT_VAR_AS_FUNCTION",
 738                                                       "FUNCTION");
 739                                         next;
 740                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 741                                         $def .= "int $1_free(void);";
 742                                         $def .= "int $1_new(void);";
 743                                         next;
 744                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 745                                         $def .= "int d2i_$2(void);";
 746                                         $def .= "int i2d_$2(void);";
 747                                         $def .= "int $2_free(void);";
 748                                         $def .= "int $2_new(void);";
 749                                         # Variant for platforms that do not
 750                                         # have to access globale variables
 751                                         # in shared libraries through functions
 752                                         $def .=
 753                                             "#INFO:"
 754                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 755                                                     .join(',',@current_algorithms).";";
 756                                         $def .= "OPENSSL_EXTERN int $2_it;";
 757                                         $def .=
 758                                             "#INFO:"
 759                                                 .join(',',@current_platforms).":"
 760                                                     .join(',',@current_algorithms).";";
 761                                         # Variant for platforms that have to
 762                                         # access globale variables in shared
 763                                         # libraries through functions
 764                                         &$make_variant("$2_it","$2_it",
 765                                                       "EXPORT_VAR_AS_FUNCTION",
 766                                                       "FUNCTION");
 767                                         next;
 768                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 769                                         # Variant for platforms that do not
 770                                         # have to access globale variables
 771                                         # in shared libraries through functions
 772                                         $def .=
 773                                             "#INFO:"
 774                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 775                                                     .join(',',@current_algorithms).";";
 776                                         $def .= "OPENSSL_EXTERN int $1_it;";
 777                                         $def .=
 778                                             "#INFO:"
 779                                                 .join(',',@current_platforms).":"
 780                                                     .join(',',@current_algorithms).";";
 781                                         # Variant for platforms that have to
 782                                         # access globale variables in shared
 783                                         # libraries through functions
 784                                         &$make_variant("$1_it","$1_it",
 785                                                       "EXPORT_VAR_AS_FUNCTION",
 786                                                       "FUNCTION");
 787                                         next;
 788                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 789                                         $def .= "int i2d_$1_NDEF(void);";
 790                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 791                                         next;
 792                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 793                                         $def .= "int $1_print_ctx(void);";
 794                                         next;
 795                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 796                                         $def .= "int $2_print_ctx(void);";
 797                                         next;
 798                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 799                                         next;
 800                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 801                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 802                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 803                                         $def .=
 804                                             "#INFO:"
 805                                                 .join(',',@current_platforms).":"
 806                                                     .join(',',@current_algorithms).";";
 807                                         $def .= "int PEM_read_$1(void);";
 808                                         $def .= "int PEM_write_$1(void);";
 809                                         $def .=
 810                                             "#INFO:"
 811                                                 .join(',',@current_platforms).":"
 812                                                     .join(',',@current_algorithms).";";
 813                                         # Things that are everywhere
 814                                         $def .= "int PEM_read_bio_$1(void);";
 815                                         $def .= "int PEM_write_bio_$1(void);";
 816                                         next;
 817                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 818                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 819                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 820                                         $def .=
 821                                             "#INFO:"
 822                                                 .join(',',@current_platforms).":"
 823                                                     .join(',',@current_algorithms).";";
 824                                         $def .= "int PEM_write_$1(void);";
 825                                         $def .=
 826                                             "#INFO:"
 827                                                 .join(',',@current_platforms).":"
 828                                                     .join(',',@current_algorithms).";";
 829                                         # Things that are everywhere
 830                                         $def .= "int PEM_write_bio_$1(void);";
 831                                         next;
 832                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 833                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 834                                         $def .=
 835                                             "#INFO:"
 836                                                 .join(',',@current_platforms).":"
 837                                                     .join(',',@current_algorithms).";";
 838                                         $def .= "int PEM_read_$1(void);";
 839                                         $def .=
 840                                             "#INFO:"
 841                                                 .join(',',@current_platforms).":"
 842                                                     .join(',',@current_algorithms).";";
 843                                         # Things that are everywhere
 844                                         $def .= "int PEM_read_bio_$1(void);";
 845                                         next;
 846                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 847                                         # Variant for platforms that do not
 848                                         # have to access globale variables
 849                                         # in shared libraries through functions
 850                                         $def .=
 851                                             "#INFO:"
 852                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 853                                                     .join(',',@current_algorithms).";";
 854                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 855                                         $def .=
 856                                             "#INFO:"
 857                                                 .join(',',@current_platforms).":"
 858                                                     .join(',',@current_algorithms).";";
 859                                         # Variant for platforms that have to
 860                                         # access globale variables in shared
 861                                         # libraries through functions
 862                                         &$make_variant("_shadow_$2","_shadow_$2",
 863                                                       "EXPORT_VAR_AS_FUNCTION",
 864                                                       "FUNCTION");
 865                                 } elsif (/^\s*DEPRECATEDIN/) {
 866                                         $parens = count_parens($_);
 867                                         if ($parens == 0) {
 868                                                 $def .= do_deprecated($_,
 869                                                         \@current_platforms,
 870                                                         \@current_algorithms);
 871                                         } else {
 872                                                 $stored_multiline = $_;
 873                                                 $stored_multiline =~ s|\R$||;
 874                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 875                                                 next;
 876                                         }
 877                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 878                                         if (/\{|\/\*|\([^\)]*$/) {
 879                                                 $line = $_;
 880                                         } else {
 881                                                 $def .= $_;
 882                                         }
 883                                 }
 884                         }
 885                 }
 886                 close(IN);
 887                 die "$file: Unmatched tags\n" if $#tag >= 0;
 888
 889                 my $algs;
 890                 my $plays;
 891
 892                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 893                 foreach (split /;/, $def) {
 894                         my $s; my $k = "FUNCTION"; my $p; my $a;
 895                         s/^[\n\s]*//g;
 896                         s/[\n\s]*$//g;
 897                         next if(/\#undef/);
 898                         next if(/typedef\W/);
 899                         next if(/\#define/);
 900
 901                         # Reduce argument lists to empty ()
 902                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 903                         while(/\(.*\)/s) {
 904                                 s/\([^\(\)]+\)/\{\}/gs;
 905                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 906                         }
 907                         # pretend as we didn't use curly braces: {} -> ()
 908                         s/\{\}/\(\)/gs;
 909
 910                         s/STACK_OF\(\)/void/gs;
 911                         s/LHASH_OF\(\)/void/gs;
 912
 913                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 914                         if (/^\#INFO:([^:]*):(.*)$/) {
 915                                 $plats = $1;
 916                                 $algs = $2;
 917                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 918                                 next;
 919                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 920                                 $s = $1;
 921                                 $k = "VARIABLE";
 922                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 923                         } elsif (/TYPEDEF_\w+_OF/s) {
 924                                 next;
 925                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 926                                 $s = $1;                # a function name!
 927                                 print STDERR "DEBUG: found function $s\n" if $debug;
 928                         } elsif (/\(/ and not (/=/)) {
 929                                 print STDERR "File $file: cannot parse: $_;\n";
 930                                 next;
 931                         } else {
 932                                 next;
 933                         }
 934
 935                         $syms{$s} = 1;
 936                         $kind{$s} = $k;
 937
 938                         $p = $plats;
 939                         $a = $algs;
 940
 941                         $platform{$s} =
 942                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 943                         $algorithm{$s} .= ','.$a;
 944
 945                         if (defined($variant{$s})) {
 946                                 foreach $v (split /;/,$variant{$s}) {
 947                                         (my $r, my $p, my $k) = split(/:/,$v);
 948                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 949                                         $syms{$r} = 1;
 950                                         if (!defined($k)) { $k = $kind{$s}; }
 951                                         $kind{$r} = $k."(".$s.")";
 952                                         $algorithm{$r} = $algorithm{$s};
 953                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 954                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 955                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 956                                 }
 957                         }
 958                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 959                 }
 960         }
 961
 962         # Prune the returned symbols
 963
 964         delete $syms{"bn_dump1"};
 965         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 966
 967         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 968         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 969         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 970         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 971         $platform{"EVP_sha384"} = "!VMSVAX";
 972         $platform{"EVP_sha512"} = "!VMSVAX";
 973         $platform{"SHA384_Init"} = "!VMSVAX";
 974         $platform{"SHA384_Transform"} = "!VMSVAX";
 975         $platform{"SHA384_Update"} = "!VMSVAX";
 976         $platform{"SHA384_Final"} = "!VMSVAX";
 977         $platform{"SHA384"} = "!VMSVAX";
 978         $platform{"SHA512_Init"} = "!VMSVAX";
 979         $platform{"SHA512_Transform"} = "!VMSVAX";
 980         $platform{"SHA512_Update"} = "!VMSVAX";
 981         $platform{"SHA512_Final"} = "!VMSVAX";
 982         $platform{"SHA512"} = "!VMSVAX";
 983
 984
 985         # Info we know about
 986
 987         push @ret, map { $_."\\".&info_string($_,"EXIST",
 988                                               $platform{$_},
 989                                               $kind{$_},
 990                                               $algorithm{$_}) } keys %syms;
 991
 992         if (keys %unknown_algorithms) {
 993                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 994                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 995         }
 996         return(@ret);
 997 }
 998
 999 # Param: string of comma-separated platform-specs.
1000 sub reduce_platforms
1001 {
1002         my ($platforms) = @_;
1003         my $pl = defined($platforms) ? $platforms : "";
1004         my %p = map { $_ => 0 } split /,/, $pl;
1005         my $ret;
1006
1007         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1008             if $debug;
1009         # We do this, because if there's code like the following, it really
1010         # means the function exists in all cases and should therefore be
1011         # everywhere.  By increasing and decreasing, we may attain 0:
1012         #
1013         # ifndef WIN16
1014         #    int foo();
1015         # else
1016         #    int _fat foo();
1017         # endif
1018         foreach $platform (split /,/, $pl) {
1019                 if ($platform =~ /^!(.*)$/) {
1020                         $p{$1}--;
1021                 } else {
1022                         $p{$platform}++;
1023                 }
1024         }
1025         foreach $platform (keys %p) {
1026                 if ($p{$platform} == 0) { delete $p{$platform}; }
1027         }
1028
1029         delete $p{""};
1030
1031         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1032         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1033             if $debug;
1034         return $ret;
1035 }
1036
1037 sub info_string
1038 {
1039         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1040
1041         my %a = defined($algorithms) ?
1042             map { $_ => 1 } split /,/, $algorithms : ();
1043         my $k = defined($kind) ? $kind : "FUNCTION";
1044         my $ret;
1045         my $p = &reduce_platforms($platforms);
1046
1047         delete $a{""};
1048
1049         $ret = $exist;
1050         $ret .= ":".$p;
1051         $ret .= ":".$k;
1052         $ret .= ":".join(',',sort keys %a);
1053         return $ret;
1054 }
1055
1056 sub maybe_add_info
1057 {
1058         (my $name, *nums, my @symbols) = @_;
1059         my $sym;
1060         my $new_info = 0;
1061         my %syms=();
1062
1063         foreach $sym (@symbols) {
1064                 (my $s, my $i) = split /\\/, $sym;
1065                 if (defined($nums{$s})) {
1066                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1067                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1068                         if (!defined($dummy) || $i ne $dummy) {
1069                                 $nums{$s} = $n."\\".$vers."\\".$i;
1070                                 $new_info++;
1071                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1072                         }
1073                 }
1074                 $syms{$s} = 1;
1075         }
1076
1077         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1078         foreach $sym (@s) {
1079                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1080                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1081                         $new_info++;
1082                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1083                 }
1084         }
1085         if ($new_info) {
1086                 print STDERR "$name: $new_info old symbols have updated info\n";
1087                 if (!$do_rewrite) {
1088                         print STDERR "You should do a rewrite to fix this.\n";
1089                 }
1090         } else {
1091         }
1092 }
1093
1094 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1095 sub is_valid
1096 {
1097         my ($keywords_txt,$platforms) = @_;
1098         my (@keywords) = split /,/,$keywords_txt;
1099         my ($falsesum, $truesum) = (0, 1);
1100
1101         # Param: one keyword
1102         sub recognise
1103         {
1104                 my ($keyword,$platforms) = @_;
1105
1106                 if ($platforms) {
1107                         # platforms
1108                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1109                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1110                         if ($keyword eq "VMS" && $VMS) { return 1; }
1111                         if ($keyword eq "WIN32" && $W32) { return 1; }
1112                         if ($keyword eq "WINNT" && $NT) { return 1; }
1113                         if ($keyword eq "OS2" && $OS2) { return 1; }
1114                         # Special platforms:
1115                         # EXPORT_VAR_AS_FUNCTION means that global variables
1116                         # will be represented as functions.  This currently
1117                         # only happens on VMS-VAX.
1118                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1119                                 return 1;
1120                         }
1121                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1122                         return 0;
1123                 } else {
1124                         # algorithms
1125                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1126
1127                         # Nothing recognise as true
1128                         return 1;
1129                 }
1130         }
1131
1132         foreach $k (@keywords) {
1133                 if ($k =~ /^!(.*)$/) {
1134                         $falsesum += &recognise($1,$platforms);
1135                 } else {
1136                         $truesum *= &recognise($k,$platforms);
1137                 }
1138         }
1139         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1140         return (!$falsesum) && $truesum;
1141 }
1142
1143 sub print_test_file
1144 {
1145         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1146         my $n = 1; my @e; my @r;
1147         my $sym; my $prev = ""; my $prefSSLeay;
1148
1149         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1150         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1151         @symbols=((sort @e),(sort @r));
1152
1153         foreach $sym (@symbols) {
1154                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1155                 my $v = 0;
1156                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1157                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1158                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1159                 if (!defined($nums{$s})) {
1160                         print STDERR "Warning: $s does not have a number assigned\n"
1161                             if(!$do_update);
1162                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1163                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1164                         if ($prev eq $s2) {
1165                                 print OUT "\t/* The following has already appeared previously */\n";
1166                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1167                         }
1168                         $prev = $s2;    # To warn about duplicates...
1169
1170                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1171                         if ($v) {
1172                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1173                         } else {
1174                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1175                         }
1176                 }
1177         }
1178 }
1179
1180 sub get_version
1181 {
1182    return $config{version};
1183 }
1184
1185 sub print_def_file
1186 {
1187         (*OUT,my $name,*nums,my @symbols)=@_;
1188         my $n = 1; my @e; my @r; my @v; my $prev="";
1189         my $liboptions="";
1190         my $libname = $name;
1191         my $http_vendor = 'www.openssl.org/';
1192         my $version = get_version();
1193         my $what = "OpenSSL: implementation of Secure Socket Layer";
1194         my $description = "$what $version, $name - http://$http_vendor";
1195         my $prevsymversion = "", $prevprevsymversion = "";
1196         # For VMS
1197         my $prevnum = 0;
1198         my $symvtextcount = 0;
1199
1200         if ($W32)
1201                 { $libname.="32"; }
1202         elsif ($OS2)
1203                 { # DLL names should not clash on the whole system.
1204                   # However, they should not have any particular relationship
1205                   # to the name of the static library.  Chose descriptive names
1206                   # (must be at most 8 chars).
1207                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1208                   $libname = $translate{$name} || $name;
1209                   $liboptions = <<EOO;
1210 INITINSTANCE
1211 DATA MULTIPLE NONSHARED
1212 EOO
1213                   # Vendor field can't contain colon, drat; so we omit http://
1214                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1215                 }
1216
1217         if ($W32 || $OS2)
1218                 {
1219                 print OUT <<"EOF";
1220 ;
1221 ; Definition file for the DLL version of the $name library from OpenSSL
1222 ;
1223
1224 LIBRARY         $libname        $liboptions
1225
1226 EOF
1227
1228                 print "EXPORTS\n";
1229                 }
1230         elsif ($VMS)
1231                 {
1232                 print OUT <<"EOF";
1233 CASE_SENSITIVE=YES
1234 SYMBOL_VECTOR=(-
1235 EOF
1236                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1237                 }
1238
1239         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1240         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1241         if ($VMS) {
1242             # VMS needs to have the symbols on slot number order
1243             @symbols=(map { $_->[1] }
1244                       sort { $a->[0] <=> $b->[0] }
1245                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1246                             die "Error: $s doesn't have a number assigned\n"
1247                                 if !defined($nums{$s});
1248                             (my $n, my @rest) = split /\\/, $nums{$s};
1249                             [ $n, $_ ] } (@e, @r, @v));
1250         } else {
1251             @symbols=((sort @e),(sort @r), (sort @v));
1252         }
1253
1254         my ($baseversion, $currversion) = get_openssl_version();
1255         my $thisversion;
1256         do {
1257                 if (!defined($thisversion)) {
1258                         $thisversion = $baseversion;
1259                 } else {
1260                         $thisversion = get_next_version($thisversion);
1261                 }
1262                 foreach $sym (@symbols) {
1263                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1264                         my $v = 0;
1265                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1266                         if (!defined($nums{$s})) {
1267                                 die "Error: $s does not have a number assigned\n"
1268                                         if(!$do_update);
1269                         } else {
1270                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1271                                 next if $symversion ne $thisversion;
1272                                 my %pf = ();
1273                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1274                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1275                                 if (is_valid($p,1) && is_valid($a,0)) {
1276                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1277                                         if ($prev eq $s2) {
1278                                                 print STDERR "Warning: Symbol '",$s2,
1279                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1280                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1281                                         }
1282                                         $prev = $s2;    # To warn about duplicates...
1283                                         if($linux) {
1284                                                 if ($symversion ne $prevsymversion) {
1285                                                         if ($prevsymversion ne "") {
1286                                                                 if ($prevprevsymversion ne "") {
1287                                                                         print OUT "} OPENSSL_"
1288                                                                                                 ."$prevprevsymversion;\n\n";
1289                                                                 } else {
1290                                                                         print OUT "};\n\n";
1291                                                                 }
1292                                                         }
1293                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1294                                                         $prevprevsymversion = $prevsymversion;
1295                                                         $prevsymversion = $symversion;
1296                                                 }
1297                                                 print OUT "        $s2;\n";
1298                                         } elsif ($VMS) {
1299                                             while(++$prevnum < $n) {
1300                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1301                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1302                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1303                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1304                                                 }
1305                                                 if ($symvtextcount == 16) {
1306                                                     # Take away first comma
1307                                                     $symline =~ s/,//;
1308                                                 }
1309                                                 print OUT $symline;
1310                                                 $symvtextcount += length($symline) - 2;
1311                                             }
1312                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1313                                             my $symtype=
1314                                                 $v ? "DATA" : "PROCEDURE";
1315                                             my $symline=
1316                                                 ($s_uc ne $s
1317                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1318                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1319                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1320                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1321                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1322                                             }
1323                                             if ($symvtextcount == 16) {
1324                                                 # Take away first comma
1325                                                 $symline =~ s/,//;
1326                                             }
1327                                             print OUT $symline;
1328                                             $symvtextcount += length($symline) - 2;
1329                                         } elsif($v && !$OS2) {
1330                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1331                                                                 ($W32)?"":"_",$s2,$n;
1332                                         } else {
1333                                                 printf OUT "    %s%-39s @%d\n",
1334                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1335                                         }
1336                                 }
1337                         }
1338                 }
1339         } while ($thisversion ne $currversion);
1340         if ($linux) {
1341                 if ($prevprevsymversion ne "") {
1342                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1343                 } else {
1344                         print OUT "    local: *;\n};\n\n";
1345                 }
1346         } elsif ($VMS) {
1347             print OUT ")\n";
1348             (my $libvmaj, my $libvmin, my $libvedit) =
1349                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1350             # The reason to multiply the edit number with 100 is to make space
1351             # for the possibility that we want to encode the patch letters
1352             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1353         }
1354         printf OUT "\n";
1355 }
1356
1357 sub load_numbers
1358 {
1359         my($name)=@_;
1360         my(@a,%ret);
1361         my $prevversion;
1362
1363         $max_num = 0;
1364         $num_noinfo = 0;
1365         $prev = "";
1366         $prev_cnt = 0;
1367
1368         my ($baseversion, $currversion) = get_openssl_version();
1369
1370         open(IN,"<$name") || die "unable to open $name:$!\n";
1371         while (<IN>) {
1372                 s|\R$||;        # Better chomp
1373                 s/#.*$//;
1374                 next if /^\s*$/;
1375                 @a=split;
1376                 if (defined $ret{$a[0]}) {
1377                         # This is actually perfectly OK
1378                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1379                 }
1380                 if ($max_num > $a[1]) {
1381                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1382                 }
1383                 elsif ($max_num == $a[1]) {
1384                         # This is actually perfectly OK
1385                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1386                         if ($a[0] eq $prev) {
1387                                 $prev_cnt++;
1388                                 $a[0] .= "{$prev_cnt}";
1389                         }
1390                 }
1391                 else {
1392                         $prev_cnt = 0;
1393                 }
1394                 if ($#a < 2) {
1395                         # Existence will be proven later, in do_defs
1396                         $ret{$a[0]}=$a[1];
1397                         $num_noinfo++;
1398                 } else {
1399                         #Sanity check the version number
1400                         if (defined $prevversion) {
1401                                 check_version_lte($prevversion, $a[2]);
1402                         }
1403                         check_version_lte($a[2], $currversion);
1404                         $prevversion = $a[2];
1405                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1406                 }
1407                 $max_num = $a[1] if $a[1] > $max_num;
1408                 $prev=$a[0];
1409         }
1410         if ($num_noinfo) {
1411                 print STDERR "Warning: $num_noinfo symbols were without info.";
1412                 if ($do_rewrite) {
1413                         printf STDERR "  The rewrite will fix this.\n";
1414                 } else {
1415                         printf STDERR "  You should do a rewrite to fix this.\n";
1416                 }
1417         }
1418         close(IN);
1419         return(%ret);
1420 }
1421
1422 sub parse_number
1423 {
1424         (my $str, my $what) = @_;
1425         (my $n, my $v, my $i) = split(/\\/,$str);
1426         if ($what eq "n") {
1427                 return $n;
1428         } else {
1429                 return $i;
1430         }
1431 }
1432
1433 sub rewrite_numbers
1434 {
1435         (*OUT,$name,*nums,@symbols)=@_;
1436         my $thing;
1437
1438         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1439         my $r; my %r; my %rsyms;
1440         foreach $r (@r) {
1441                 (my $s, my $i) = split /\\/, $r;
1442                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1443                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1444                 $r{$a} = $s."\\".$i;
1445                 $rsyms{$s} = 1;
1446         }
1447
1448         my %syms = ();
1449         foreach $_ (@symbols) {
1450                 (my $n, my $i) = split /\\/;
1451                 $syms{$n} = 1;
1452         }
1453
1454         my @s=sort {
1455             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1456             || $a cmp $b
1457         } keys %nums;
1458         foreach $sym (@s) {
1459                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1460                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1461                 next if defined($rsyms{$sym});
1462                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1463                 $i="NOEXIST::FUNCTION:"
1464                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1465                 my $s2 = $sym;
1466                 $s2 =~ s/\{[0-9]+\}$//;
1467                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1468                 if (exists $r{$sym}) {
1469                         (my $s, $i) = split /\\/,$r{$sym};
1470                         my $s2 = $s;
1471                         $s2 =~ s/\{[0-9]+\}$//;
1472                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1473                 }
1474         }
1475 }
1476
1477 sub update_numbers
1478 {
1479         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1480         my $new_syms = 0;
1481         my $basevers;
1482         my $vers;
1483
1484         ($basevers, $vers) = get_openssl_version();
1485
1486         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1487         my $r; my %r; my %rsyms;
1488         foreach $r (@r) {
1489                 (my $s, my $i) = split /\\/, $r;
1490                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1491                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1492                 $r{$a} = $s."\\".$i;
1493                 $rsyms{$s} = 1;
1494         }
1495
1496         foreach $sym (@symbols) {
1497                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1498                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1499                 next if defined($rsyms{$sym});
1500                 die "ERROR: Symbol $sym had no info attached to it."
1501                     if $i eq "";
1502                 if (!exists $nums{$s}) {
1503                         $new_syms++;
1504                         my $s2 = $s;
1505                         $s2 =~ s/\{[0-9]+\}$//;
1506                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1507                         if (exists $r{$s}) {
1508                                 ($s, $i) = split /\\/,$r{$s};
1509                                 $s =~ s/\{[0-9]+\}$//;
1510                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1511                         }
1512                 }
1513         }
1514         if($new_syms) {
1515                 print STDERR "$name: Added $new_syms new symbols\n";
1516         } else {
1517                 print STDERR "$name: No new symbols added\n";
1518         }
1519 }
1520
1521 sub check_existing
1522 {
1523         (*nums, my @symbols)=@_;
1524         my %existing; my @remaining;
1525         @remaining=();
1526         foreach $sym (@symbols) {
1527                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1528                 $existing{$s}=1;
1529         }
1530         foreach $sym (keys %nums) {
1531                 if (!exists $existing{$sym}) {
1532                         push @remaining, $sym;
1533                 }
1534         }
1535         if(@remaining) {
1536                 print STDERR "The following symbols do not seem to exist:\n";
1537                 foreach $sym (@remaining) {
1538                         print STDERR "\t",$sym,"\n";
1539                 }
1540         }
1541 }
1542
1543 sub count_parens
1544 {
1545         my $line = shift(@_);
1546
1547         my $open = $line =~ tr/\(//;
1548         my $close = $line =~ tr/\)//;
1549
1550         return $open - $close;
1551 }
1552
1553 #Parse opensslv.h to get the current version number. Also work out the base
1554 #version, i.e. the lowest version number that is binary compatible with this
1555 #version
1556 sub get_openssl_version()
1557 {
1558         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1559         open (IN, "$fn") || die "Can't open opensslv.h";
1560
1561         while(<IN>) {
1562                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1563                         my $suffix = $2;
1564                         (my $baseversion = $1) =~ s/\./_/g;
1565                         close IN;
1566                         return ($baseversion."0", $baseversion.$suffix);
1567                 }
1568         }
1569         die "Can't find OpenSSL version number\n";
1570 }
1571
1572 #Given an OpenSSL version number, calculate the next version number. If the
1573 #version number gets to a.b.czz then we go to a.b.(c+1)
1574 sub get_next_version()
1575 {
1576         my $thisversion = shift;
1577
1578         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1579
1580         if ($letter eq "zz") {
1581                 my $lastnum = substr($base, -1);
1582                 return substr($base, 0, length($base)-1).(++$lastnum);
1583         }
1584         return $base.get_next_letter($letter);
1585 }
1586
1587 #Given the letters off the end of an OpenSSL version string, calculate what
1588 #the letters for the next release would be.
1589 sub get_next_letter()
1590 {
1591         my $thisletter = shift;
1592         my $baseletter = "";
1593         my $endletter;
1594
1595         if ($thisletter eq "") {
1596                 return "a";
1597         }
1598         if ((length $thisletter) > 1) {
1599                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1600         } else {
1601                 $endletter = $thisletter;
1602         }
1603
1604         if ($endletter eq "z") {
1605                 return $thisletter."a";
1606         } else {
1607                 return $baseletter.(++$endletter);
1608         }
1609 }
1610
1611 #Check if a version is less than or equal to the current version. Its a fatal
1612 #error if not. They must also only differ in letters, or the last number (i.e.
1613 #the first two numbers must be the same)
1614 sub check_version_lte()
1615 {
1616         my ($testversion, $currversion) = @_;
1617         my $lentv;
1618         my $lencv;
1619         my $cvbase;
1620
1621         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1622         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1623
1624         #Die if we can't parse the version numbers or they don't look sane
1625         die "Invalid version number: $testversion and $currversion\n"
1626                 if (!defined($cvnums) || !defined($tvnums)
1627                         || length($cvnums) != 5
1628                         || length($tvnums) != 5);
1629
1630         #If the base versions (without letters) don't match check they only differ
1631         #in the last number
1632         if ($cvnums ne $tvnums) {
1633                 die "Invalid version number: $testversion "
1634                         ."for current version $currversion\n"
1635                         if (substr($cvnums, -1) < substr($tvnums, -1)
1636                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1637                 return;
1638         }
1639         #If we get here then the base version (i.e. the numbers) are the same - they
1640         #only differ in the letters
1641
1642         $lentv = length $testversion;
1643         $lencv = length $currversion;
1644
1645         #If the testversion has more letters than the current version then it must
1646         #be later (or malformed)
1647         if ($lentv > $lencv) {
1648                 die "Invalid version number: $testversion "
1649                         ."is greater than $currversion\n";
1650         }
1651
1652         #Get the last letter from the current version
1653         my ($cvletter) = $currversion =~ /([a-z])$/;
1654         if (defined $cvletter) {
1655                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1656         } else {
1657                 $cvbase = $currversion;
1658         }
1659         die "Unable to parse version number $currversion" if (!defined $cvbase);
1660         my $tvbase;
1661         my ($tvletter) = $testversion =~ /([a-z])$/;
1662         if (defined $tvletter) {
1663                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1664         } else {
1665                 $tvbase = $testversion;
1666         }
1667         die "Unable to parse version number $testversion" if (!defined $tvbase);
1668
1669         if ($lencv > $lentv) {
1670                 #If current version has more letters than testversion then testversion
1671                 #minus the final letter must be a substring of the current version
1672                 die "Invalid version number $testversion "
1673                         ."is greater than $currversion or is invalid\n"
1674                         if (index($cvbase, $tvbase) != 0);
1675         } else {
1676                 #If both versions have the same number of letters then they must be
1677                 #equal up to the last letter, and the last letter in testversion must
1678                 #be less than or equal to the last letter in current version.
1679                 die "Invalid version number $testversion "
1680                         ."is greater than $currversion\n"
1681                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1682         }
1683 }
1684
1685 sub do_deprecated()
1686 {
1687         my ($decl, $plats, $algs) = @_;
1688         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1689             or die "Bad DEPRECTEDIN: $decl\n";
1690         my $info1 .= "#INFO:";
1691         $info1 .= join(',', @{$plats}) . ":";
1692         my $info2 = $info1;
1693         $info1 .= join(',',@{$algs}, $1) . ";";
1694         $info2 .= join(',',@{$algs}) . ";";
1695         return $info1 . $2 . ";" . $info2;
1696 }