util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libeay.num and ssleay.num,
   9 # The format of these files is:
  10 #
  11 #       routine-name    nnnn    vers    info
  12 #
  13 # The "nnnn" and "vers" fields are the numeric id and version for the symbol
  14 # respectively. The "info" part is actually a colon-separated string of fields
  15 # with the following meaning:
  16 #
  17 #       existence:platform:kind:algorithms
  18 #
  19 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  20 #   found somewhere in the source,
  21 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  22 #   comma-separated list of the platform, just as they are if the symbol exists
  23 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  24 #   symbol name variants for platforms where the names are too long for the
  25 #   compiler or linker, or if the systems is case insensitive and there is a
  26 #   clash, or the symbol is implemented differently (see
  27 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  28 #   in the file crypto/symhacks.h.
  29 #   The semantics for the platforms is that every item is checked against the
  30 #   environment.  For the negative items ("!FOO"), if any of them is false
  31 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  32 #   used.  For the positive itms, if all of them are false in the environment,
  33 #   the corresponding symbol can't be used.  Any combination of positive and
  34 #   negative items are possible, and of course leave room for some redundancy.
  35 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  36 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  37 #   exclude symbols that are part of an algorithm that some user wants to
  38 #   exclude.
  39 #
  40
  41 my $debug=0;
  42
  43 my $crypto_num= "util/libeay.num";
  44 my $ssl_num=    "util/ssleay.num";
  45 my $libname;
  46
  47 my $do_update = 0;
  48 my $do_rewrite = 1;
  49 my $do_crypto = 0;
  50 my $do_ssl = 0;
  51 my $do_ctest = 0;
  52 my $do_ctestall = 0;
  53 my $do_checkexist = 0;
  54
  55 my $VMSVAX=0;
  56 my $VMSNonVAX=0;
  57 my $VMS=0;
  58 my $W32=0;
  59 my $NT=0;
  60 my $OS2=0;
  61 my $linux=0;
  62 # Set this to make typesafe STACK definitions appear in DEF
  63 my $safe_stack_def = 0;
  64
  65 my @known_platforms = ( "__FreeBSD__", "PERL5",
  66                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
  67                         );
  68 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
  69 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  70                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  71                          "SHA256", "SHA512", "RMD160",
  72                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
  73                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  74                          "SCRYPT", "CHACHA", "POLY1305",
  75                          # EC_NISTP_64_GCC_128
  76                          "EC_NISTP_64_GCC_128",
  77                          # Envelope "algorithms"
  78                          "EVP", "X509", "ASN1_TYPEDEFS",
  79                          # Helper "algorithms"
  80                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  81                          "LOCKING",
  82                          # External "algorithms"
  83                          "FP_API", "STDIO", "SOCK", "DGRAM",
  84                          "CRYPTO_MDEBUG",
  85                          # Engines
  86                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  87                          # X.509v3 Signed Certificate Timestamps
  88                          "SCT",
  89                          # RFC3779
  90                          "RFC3779",
  91                          # TLS
  92                          "PSK", "SRP", "HEARTBEATS",
  93                          # CMS
  94                          "CMS",
  95                          # CryptoAPI Engine
  96                          "CAPIENG",
  97                          # SSL v3 method
  98                          "SSL3_METHOD",
  99                          # JPAKE
 100                          "JPAKE",
 101                          # NEXTPROTONEG
 102                          "NEXTPROTONEG",
 103                          # Deprecated functions
 104                          "DEPRECATEDIN_0_9_8",
 105                          "DEPRECATEDIN_1_0_0",
 106                          "DEPRECATEDIN_1_1_0",
 107                          # SCTP
 108                          "SCTP",
 109                          # SRTP
 110                          "SRTP",
 111                          # SSL TRACE
 112                          "SSL_TRACE",
 113                          # Unit testing
 114                          "UNIT_TEST",
 115                          # OCB mode
 116                          "OCB",
 117                          # APPLINK (win build feature?)
 118                          "APPLINK"
 119                      );
 120
 121 my %disabled_algorithms;
 122
 123 foreach (@known_algorithms) {
 124     $disabled_algorithms{$_} = 0;
 125 }
 126 # disabled by default
 127 $disabled_algorithms{"STATIC_ENGINE"} = 1;
 128
 129 my $options="";
 130 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 131 while(<IN>) {
 132     $options=$1 if (/^OPTIONS=(.*)$/);
 133 }
 134 close(IN);
 135
 136 my $zlib;
 137
 138 foreach (@ARGV, split(/ /, $options))
 139         {
 140         $debug=1 if $_ eq "debug";
 141         $W32=1 if $_ eq "32";
 142         die "win16 not supported" if $_ eq "16";
 143         if($_ eq "NT") {
 144                 $W32 = 1;
 145                 $NT = 1;
 146         }
 147         if ($_ eq "VMS-VAX") {
 148                 $VMS=1;
 149                 $VMSVAX=1;
 150         }
 151         if ($_ eq "VMS-NonVAX") {
 152                 $VMS=1;
 153                 $VMSNonVAX=1;
 154         }
 155         if ($_ eq "linux") {
 156                 $linux=1;
 157         }
 158         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
 159         $OS2=1 if $_ eq "OS2";
 160         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
 161                          || $_ eq "enable-zlib-dynamic") {
 162                 $zlib = 1;
 163         }
 164
 165         $do_ssl=1 if $_ eq "ssleay";
 166         if ($_ eq "ssl") {
 167                 $do_ssl=1;
 168                 $libname=$_
 169         }
 170         $do_crypto=1 if $_ eq "libeay";
 171         if ($_ eq "crypto") {
 172                 $do_crypto=1;
 173                 $libname=$_;
 174         }
 175         $do_update=1 if $_ eq "update";
 176         $do_rewrite=1 if $_ eq "rewrite";
 177         $do_ctest=1 if $_ eq "ctest";
 178         $do_ctestall=1 if $_ eq "ctestall";
 179         $do_checkexist=1 if $_ eq "exist";
 180         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 181         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
 182                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
 183                 foreach (keys %disabled_algorithms) {
 184                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
 185                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
 186                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
 187                         }
 188                 }
 189         }
 190         if (/^no-deprecated$/) {
 191                 foreach (keys %disabled_algorithms) {
 192                         if (/^DEPRECATEDIN_/) {
 193                                 $disabled_algorithms{$_} = 1;
 194                         }
 195                 }
 196         }
 197         elsif (/^(enable|disable|no)-(.*)$/) {
 198                 my $alg = uc $2;
 199         $alg =~ tr/-/_/;
 200                 if (exists $disabled_algorithms{$alg}) {
 201                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
 202                 }
 203         }
 204
 205         }
 206
 207 if (!$libname) {
 208         if ($do_ssl) {
 209                 $libname="SSLEAY";
 210         }
 211         if ($do_crypto) {
 212                 $libname="LIBEAY";
 213         }
 214 }
 215
 216 # If no platform is given, assume WIN32
 217 if ($W32 + $VMS + $OS2 + $linux == 0) {
 218         $W32 = 1;
 219 }
 220 die "Please, only one platform at a time"
 221     if ($W32 + $VMS + $OS2 + $linux > 1);
 222
 223 if (!$do_ssl && !$do_crypto)
 224         {
 225         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
 226         exit(1);
 227         }
 228
 229 %ssl_list=&load_numbers($ssl_num);
 230 $max_ssl = $max_num;
 231 %crypto_list=&load_numbers($crypto_num);
 232 $max_crypto = $max_num;
 233
 234 my $ssl="include/openssl/ssl.h";
 235 $ssl.=" include/openssl/tls1.h";
 236 $ssl.=" include/openssl/srtp.h";
 237
 238 my $crypto ="include/openssl/crypto.h";
 239 $crypto.=" crypto/include/internal/cryptlib.h";
 240 $crypto.=" crypto/include/internal/chacha.h"; # unless $no_chacha;
 241 $crypto.=" crypto/include/internal/poly1305.h"; # unless $no_poly1305;
 242 $crypto.=" include/internal/o_dir.h";
 243 $crypto.=" include/internal/o_str.h";
 244 $crypto.=" include/openssl/des.h" ; # unless $no_des;
 245 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
 246 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
 247 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
 248 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
 249 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
 250 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
 251 $crypto.=" include/openssl/whrlpool.h" ;
 252 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
 253 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
 254 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
 255 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
 256 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
 257 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
 258 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
 259 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
 260 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
 261
 262 $crypto.=" include/openssl/bn.h";
 263 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
 264 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
 265 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
 266 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
 267 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
 268 $crypto.=" include/openssl/cmac.h" ;
 269
 270 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
 271 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
 272 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
 273 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
 274 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
 275 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
 276 $crypto.=" include/openssl/conf.h";
 277 $crypto.=" include/openssl/txt_db.h";
 278
 279 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
 280 $crypto.=" include/openssl/objects.h";
 281 $crypto.=" include/openssl/pem.h";
 282 #$crypto.=" include/openssl/meth.h";
 283 $crypto.=" include/openssl/asn1.h";
 284 $crypto.=" include/openssl/asn1t.h";
 285 $crypto.=" include/openssl/err.h" ; # unless $no_err;
 286 $crypto.=" include/openssl/pkcs7.h";
 287 $crypto.=" include/openssl/pkcs12.h";
 288 $crypto.=" include/openssl/x509.h";
 289 $crypto.=" include/openssl/x509_vfy.h";
 290 $crypto.=" include/openssl/x509v3.h";
 291 $crypto.=" include/openssl/ts.h";
 292 $crypto.=" include/openssl/rand.h";
 293 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
 294 $crypto.=" include/openssl/ocsp.h";
 295 $crypto.=" include/openssl/ui.h";
 296 #$crypto.=" include/openssl/store.h";
 297 $crypto.=" include/openssl/pqueue.h";
 298 $crypto.=" include/openssl/cms.h";
 299 $crypto.=" include/openssl/jpake.h";
 300 $crypto.=" include/openssl/srp.h";
 301 $crypto.=" include/openssl/modes.h";
 302 $crypto.=" include/openssl/async.h";
 303
 304 my $symhacks="include/openssl/symhacks.h";
 305
 306 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 307 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 308
 309 if ($do_update) {
 310
 311 if ($do_ssl == 1) {
 312
 313         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 314         if ($do_rewrite == 1) {
 315                 open(OUT, ">$ssl_num");
 316                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 317         } else {
 318                 open(OUT, ">>$ssl_num");
 319         }
 320         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 321         close OUT;
 322 }
 323
 324 if($do_crypto == 1) {
 325
 326         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 327         if ($do_rewrite == 1) {
 328                 open(OUT, ">$crypto_num");
 329                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 330         } else {
 331                 open(OUT, ">>$crypto_num");
 332         }
 333         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 334         close OUT;
 335 }
 336
 337 } elsif ($do_checkexist) {
 338         &check_existing(*ssl_list, @ssl_symbols)
 339                 if $do_ssl == 1;
 340         &check_existing(*crypto_list, @crypto_symbols)
 341                 if $do_crypto == 1;
 342 } elsif ($do_ctest || $do_ctestall) {
 343
 344         print <<"EOF";
 345
 346 /* Test file to check all DEF file symbols are present by trying
 347  * to link to all of them. This is *not* intended to be run!
 348  */
 349
 350 int main()
 351 {
 352 EOF
 353         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 354                 if $do_ssl == 1;
 355
 356         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 357                 if $do_crypto == 1;
 358
 359         print "}\n";
 360
 361 } else {
 362
 363         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 364                 if $do_ssl == 1;
 365
 366         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 367                 if $do_crypto == 1;
 368
 369 }
 370
 371
 372 sub do_defs
 373 {
 374         my($name,$files,$symhacksfile)=@_;
 375         my $file;
 376         my @ret;
 377         my %syms;
 378         my %platform;           # For anything undefined, we assume ""
 379         my %kind;               # For anything undefined, we assume "FUNCTION"
 380         my %algorithm;          # For anything undefined, we assume ""
 381         my %variant;
 382         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 383                                 # is the same name as the original.
 384         my $cpp;
 385         my %unknown_algorithms = ();
 386         my $parens = 0;
 387
 388         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 389                 {
 390                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 391                 open(IN,"<$file") || die "unable to open $file:$!\n";
 392                 my $line = "", my $def= "";
 393                 my %tag = (
 394                         (map { $_ => 0 } @known_platforms),
 395                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 396                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 397                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
 398                         NOPROTO         => 0,
 399                         PERL5           => 0,
 400                         _WINDLL         => 0,
 401                         CONST_STRICT    => 0,
 402                         TRUE            => 1,
 403                 );
 404                 my $symhacking = $file eq $symhacksfile;
 405                 my @current_platforms = ();
 406                 my @current_algorithms = ();
 407
 408                 # params: symbol, alias, platforms, kind
 409                 # The reason to put this subroutine in a variable is that
 410                 # it will otherwise create it's own, unshared, version of
 411                 # %tag and %variant...
 412                 my $make_variant = sub
 413                 {
 414                         my ($s, $a, $p, $k) = @_;
 415                         my ($a1, $a2);
 416
 417                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 418                         if (defined($p))
 419                         {
 420                                 $a1 = join(",",$p,
 421                                            grep(!/^$/,
 422                                                 map { $tag{$_} == 1 ? $_ : "" }
 423                                                 @known_platforms));
 424                         }
 425                         else
 426                         {
 427                                 $a1 = join(",",
 428                                            grep(!/^$/,
 429                                                 map { $tag{$_} == 1 ? $_ : "" }
 430                                                 @known_platforms));
 431                         }
 432                         $a2 = join(",",
 433                                    grep(!/^$/,
 434                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 435                                         @known_ossl_platforms));
 436                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 437                         if ($a1 eq "") { $a1 = $a2; }
 438                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 439                         if ($a eq $s)
 440                         {
 441                                 if (!defined($variant_cnt{$s}))
 442                                 {
 443                                         $variant_cnt{$s} = 0;
 444                                 }
 445                                 $variant_cnt{$s}++;
 446                                 $a .= "{$variant_cnt{$s}}";
 447                         }
 448                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 449                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 450                         if (!grep(/^$togrep$/,
 451                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 452                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 453                                 $variant{$s} .= $toadd;
 454                         }
 455                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 456                 };
 457
 458                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 459                 while(<IN>) {
 460                         if($parens > 0) {
 461                                 #Inside a DEPRECATEDIN
 462                                 $stored_multiline .= $_;
 463                                 chomp $stored_multiline;
 464                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
 465                                 $parens = count_parens($stored_multiline);
 466                                 if ($parens == 0) {
 467                                         $def .= do_deprecated($stored_multiline,
 468                                                         \@current_platforms,
 469                                                         \@current_algorithms);
 470                                 }
 471                                 next;
 472                         }
 473                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 474                                 {
 475                                 undef @tag;
 476                                 last;
 477                                 }
 478                         if ($line ne '') {
 479                                 $_ = $line . $_;
 480                                 $line = '';
 481                         }
 482
 483                         if (/\\$/) {
 484                                 chomp; # remove eol
 485                                 chop; # remove ending backslash
 486                                 $line = $_;
 487                                 next;
 488                         }
 489
 490                         if(/\/\*/) {
 491                                 if (not /\*\//) {       # multiline comment...
 492                                         $line = $_;     # ... just accumulate
 493                                         next;
 494                                 } else {
 495                                         s/\/\*.*?\*\///gs;# wipe it
 496                                 }
 497                         }
 498
 499                         if ($cpp) {
 500                                 $cpp++ if /^#\s*if/;
 501                                 $cpp-- if /^#\s*endif/;
 502                                 next;
 503                         }
 504                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 505
 506                         s/{[^{}]*}//gs;                      # ignore {} blocks
 507                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 508                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 509                         if (/^\#\s*ifndef\s+(.*)/) {
 510                                 push(@tag,"-");
 511                                 push(@tag,$1);
 512                                 $tag{$1}=-1;
 513                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 514                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 515                                 push(@tag,"-");
 516                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 517                                         my $tmp_1 = $1;
 518                                         my $tmp_;
 519                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 520                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 521                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 522                                                 push(@tag,$1);
 523                                                 $tag{$1}=-1;
 524                                         }
 525                                 } else {
 526                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 527                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 528                                         push(@tag,$1);
 529                                         $tag{$1}=-1;
 530                                 }
 531                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 532                                 push(@tag,"-");
 533                                 push(@tag,$1);
 534                                 $tag{$1}=1;
 535                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 536                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 537                                 push(@tag,"-");
 538                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 539                                         my $tmp_1 = $1;
 540                                         my $tmp_;
 541                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 542                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 543                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 544                                                 push(@tag,$1);
 545                                                 $tag{$1}=1;
 546                                         }
 547                                 } else {
 548                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 549                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 550                                         push(@tag,$1);
 551                                         $tag{$1}=1;
 552                                 }
 553                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 554                                 my $tag_i = $#tag;
 555                                 while($tag[$tag_i] ne "-") {
 556                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 557                                                 $tag{$tag[$tag_i]}=2;
 558                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 559                                         }
 560                                         $tag_i--;
 561                                 }
 562                         } elsif (/^\#\s*endif/) {
 563                                 my $tag_i = $#tag;
 564                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 565                                         my $t=$tag[$tag_i];
 566                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 567                                         if ($tag{$t}==2) {
 568                                                 $tag{$t}=-1;
 569                                         } else {
 570                                                 $tag{$t}=0;
 571                                         }
 572                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 573                                         pop(@tag);
 574                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 575                                                 $t=$1;
 576                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
 577                                                 $t=$1;
 578                                         } else {
 579                                                 $t="";
 580                                         }
 581                                         if ($t ne ""
 582                                             && !grep(/^$t$/, @known_algorithms)) {
 583                                                 $unknown_algorithms{$t} = 1;
 584                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 585                                         }
 586                                         $tag_i--;
 587                                 }
 588                                 pop(@tag);
 589                         } elsif (/^\#\s*else/) {
 590                                 my $tag_i = $#tag;
 591                                 while($tag[$tag_i] ne "-") {
 592                                         my $t=$tag[$tag_i];
 593                                         $tag{$t}= -$tag{$t};
 594                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 595                                         $tag_i--;
 596                                 }
 597                         } elsif (/^\#\s*if\s+1/) {
 598                                 push(@tag,"-");
 599                                 # Dummy tag
 600                                 push(@tag,"TRUE");
 601                                 $tag{"TRUE"}=1;
 602                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 603                         } elsif (/^\#\s*if\s+0/) {
 604                                 push(@tag,"-");
 605                                 # Dummy tag
 606                                 push(@tag,"TRUE");
 607                                 $tag{"TRUE"}=-1;
 608                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 609                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 610                                  && $symhacking && $tag{'TRUE'} != -1) {
 611                                 # This is for aliasing.  When we find an alias,
 612                                 # we have to invert
 613                                 &$make_variant($1,$2);
 614                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 615                         }
 616                         if (/^\#/) {
 617                                 @current_platforms =
 618                                     grep(!/^$/,
 619                                          map { $tag{$_} == 1 ? $_ :
 620                                                    $tag{$_} == -1 ? "!".$_  : "" }
 621                                          @known_platforms);
 622                                 push @current_platforms
 623                                     , grep(!/^$/,
 624                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 625                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 626                                            @known_ossl_platforms);
 627                                 @current_algorithms = ();
 628                                 @current_algorithms =
 629                                     grep(!/^$/,
 630                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 631                                          @known_algorithms);
 632                                 push @current_algorithms
 633                                     , grep(!/^$/,
 634                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
 635                                          @known_algorithms);
 636                                 $def .=
 637                                     "#INFO:"
 638                                         .join(',',@current_platforms).":"
 639                                             .join(',',@current_algorithms).";";
 640                                 next;
 641                         }
 642                         if ($tag{'TRUE'} != -1) {
 643                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 644                                         next;
 645                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 646                                         $def .= "int d2i_$3(void);";
 647                                         $def .= "int i2d_$3(void);";
 648                                         # Variant for platforms that do not
 649                                         # have to access globale variables
 650                                         # in shared libraries through functions
 651                                         $def .=
 652                                             "#INFO:"
 653                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 654                                                     .join(',',@current_algorithms).";";
 655                                         $def .= "OPENSSL_EXTERN int $2_it;";
 656                                         $def .=
 657                                             "#INFO:"
 658                                                 .join(',',@current_platforms).":"
 659                                                     .join(',',@current_algorithms).";";
 660                                         # Variant for platforms that have to
 661                                         # access globale variables in shared
 662                                         # libraries through functions
 663                                         &$make_variant("$2_it","$2_it",
 664                                                       "EXPORT_VAR_AS_FUNCTION",
 665                                                       "FUNCTION");
 666                                         next;
 667                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 668                                         $def .= "int d2i_$3(void);";
 669                                         $def .= "int i2d_$3(void);";
 670                                         $def .= "int $3_free(void);";
 671                                         $def .= "int $3_new(void);";
 672                                         # Variant for platforms that do not
 673                                         # have to access globale variables
 674                                         # in shared libraries through functions
 675                                         $def .=
 676                                             "#INFO:"
 677                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 678                                                     .join(',',@current_algorithms).";";
 679                                         $def .= "OPENSSL_EXTERN int $2_it;";
 680                                         $def .=
 681                                             "#INFO:"
 682                                                 .join(',',@current_platforms).":"
 683                                                     .join(',',@current_algorithms).";";
 684                                         # Variant for platforms that have to
 685                                         # access globale variables in shared
 686                                         # libraries through functions
 687                                         &$make_variant("$2_it","$2_it",
 688                                                       "EXPORT_VAR_AS_FUNCTION",
 689                                                       "FUNCTION");
 690                                         next;
 691                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 692                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 693                                         $def .= "int d2i_$1(void);";
 694                                         $def .= "int i2d_$1(void);";
 695                                         $def .= "int $1_free(void);";
 696                                         $def .= "int $1_new(void);";
 697                                         # Variant for platforms that do not
 698                                         # have to access globale variables
 699                                         # in shared libraries through functions
 700                                         $def .=
 701                                             "#INFO:"
 702                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 703                                                     .join(',',@current_algorithms).";";
 704                                         $def .= "OPENSSL_EXTERN int $1_it;";
 705                                         $def .=
 706                                             "#INFO:"
 707                                                 .join(',',@current_platforms).":"
 708                                                     .join(',',@current_algorithms).";";
 709                                         # Variant for platforms that have to
 710                                         # access globale variables in shared
 711                                         # libraries through functions
 712                                         &$make_variant("$1_it","$1_it",
 713                                                       "EXPORT_VAR_AS_FUNCTION",
 714                                                       "FUNCTION");
 715                                         next;
 716                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 717                                         $def .= "int d2i_$2(void);";
 718                                         $def .= "int i2d_$2(void);";
 719                                         # Variant for platforms that do not
 720                                         # have to access globale variables
 721                                         # in shared libraries through functions
 722                                         $def .=
 723                                             "#INFO:"
 724                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 725                                                     .join(',',@current_algorithms).";";
 726                                         $def .= "OPENSSL_EXTERN int $2_it;";
 727                                         $def .=
 728                                             "#INFO:"
 729                                                 .join(',',@current_platforms).":"
 730                                                     .join(',',@current_algorithms).";";
 731                                         # Variant for platforms that have to
 732                                         # access globale variables in shared
 733                                         # libraries through functions
 734                                         &$make_variant("$2_it","$2_it",
 735                                                       "EXPORT_VAR_AS_FUNCTION",
 736                                                       "FUNCTION");
 737                                         next;
 738                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 739                                         $def .= "int $1_free(void);";
 740                                         $def .= "int $1_new(void);";
 741                                         next;
 742                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 743                                         $def .= "int d2i_$2(void);";
 744                                         $def .= "int i2d_$2(void);";
 745                                         $def .= "int $2_free(void);";
 746                                         $def .= "int $2_new(void);";
 747                                         # Variant for platforms that do not
 748                                         # have to access globale variables
 749                                         # in shared libraries through functions
 750                                         $def .=
 751                                             "#INFO:"
 752                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 753                                                     .join(',',@current_algorithms).";";
 754                                         $def .= "OPENSSL_EXTERN int $2_it;";
 755                                         $def .=
 756                                             "#INFO:"
 757                                                 .join(',',@current_platforms).":"
 758                                                     .join(',',@current_algorithms).";";
 759                                         # Variant for platforms that have to
 760                                         # access globale variables in shared
 761                                         # libraries through functions
 762                                         &$make_variant("$2_it","$2_it",
 763                                                       "EXPORT_VAR_AS_FUNCTION",
 764                                                       "FUNCTION");
 765                                         next;
 766                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 767                                         # Variant for platforms that do not
 768                                         # have to access globale variables
 769                                         # in shared libraries through functions
 770                                         $def .=
 771                                             "#INFO:"
 772                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 773                                                     .join(',',@current_algorithms).";";
 774                                         $def .= "OPENSSL_EXTERN int $1_it;";
 775                                         $def .=
 776                                             "#INFO:"
 777                                                 .join(',',@current_platforms).":"
 778                                                     .join(',',@current_algorithms).";";
 779                                         # Variant for platforms that have to
 780                                         # access globale variables in shared
 781                                         # libraries through functions
 782                                         &$make_variant("$1_it","$1_it",
 783                                                       "EXPORT_VAR_AS_FUNCTION",
 784                                                       "FUNCTION");
 785                                         next;
 786                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 787                                         $def .= "int i2d_$1_NDEF(void);";
 788                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 789                                         next;
 790                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 791                                         $def .= "int $1_print_ctx(void);";
 792                                         next;
 793                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 794                                         $def .= "int $2_print_ctx(void);";
 795                                         next;
 796                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 797                                         next;
 798                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 799                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 800                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 801                                         $def .=
 802                                             "#INFO:"
 803                                                 .join(',',@current_platforms).":"
 804                                                     .join(',',@current_algorithms).";";
 805                                         $def .= "int PEM_read_$1(void);";
 806                                         $def .= "int PEM_write_$1(void);";
 807                                         $def .=
 808                                             "#INFO:"
 809                                                 .join(',',@current_platforms).":"
 810                                                     .join(',',@current_algorithms).";";
 811                                         # Things that are everywhere
 812                                         $def .= "int PEM_read_bio_$1(void);";
 813                                         $def .= "int PEM_write_bio_$1(void);";
 814                                         next;
 815                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 816                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
 817                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 818                                         $def .=
 819                                             "#INFO:"
 820                                                 .join(',',@current_platforms).":"
 821                                                     .join(',',@current_algorithms).";";
 822                                         $def .= "int PEM_write_$1(void);";
 823                                         $def .=
 824                                             "#INFO:"
 825                                                 .join(',',@current_platforms).":"
 826                                                     .join(',',@current_algorithms).";";
 827                                         # Things that are everywhere
 828                                         $def .= "int PEM_write_bio_$1(void);";
 829                                         next;
 830                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 831                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 832                                         $def .=
 833                                             "#INFO:"
 834                                                 .join(',',@current_platforms).":"
 835                                                     .join(',',@current_algorithms).";";
 836                                         $def .= "int PEM_read_$1(void);";
 837                                         $def .=
 838                                             "#INFO:"
 839                                                 .join(',',@current_platforms).":"
 840                                                     .join(',',@current_algorithms).";";
 841                                         # Things that are everywhere
 842                                         $def .= "int PEM_read_bio_$1(void);";
 843                                         next;
 844                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 845                                         # Variant for platforms that do not
 846                                         # have to access globale variables
 847                                         # in shared libraries through functions
 848                                         $def .=
 849                                             "#INFO:"
 850                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 851                                                     .join(',',@current_algorithms).";";
 852                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 853                                         $def .=
 854                                             "#INFO:"
 855                                                 .join(',',@current_platforms).":"
 856                                                     .join(',',@current_algorithms).";";
 857                                         # Variant for platforms that have to
 858                                         # access globale variables in shared
 859                                         # libraries through functions
 860                                         &$make_variant("_shadow_$2","_shadow_$2",
 861                                                       "EXPORT_VAR_AS_FUNCTION",
 862                                                       "FUNCTION");
 863                                 } elsif (/^\s*DEPRECATEDIN/) {
 864                                         $parens = count_parens($_);
 865                                         if ($parens == 0) {
 866                                                 $def .= do_deprecated($_,
 867                                                         \@current_platforms,
 868                                                         \@current_algorithms);
 869                                         } else {
 870                                                 $stored_multiline = $_;
 871                                                 chomp $stored_multiline;
 872                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
 873                                                 next;
 874                                         }
 875                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 876                                         if (/\{|\/\*|\([^\)]*$/) {
 877                                                 $line = $_;
 878                                         } else {
 879                                                 $def .= $_;
 880                                         }
 881                                 }
 882                         }
 883                 }
 884                 close(IN);
 885
 886                 my $algs;
 887                 my $plays;
 888
 889                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 890                 foreach (split /;/, $def) {
 891                         my $s; my $k = "FUNCTION"; my $p; my $a;
 892                         s/^[\n\s]*//g;
 893                         s/[\n\s]*$//g;
 894                         next if(/\#undef/);
 895                         next if(/typedef\W/);
 896                         next if(/\#define/);
 897
 898                         # Reduce argument lists to empty ()
 899                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 900                         while(/\(.*\)/s) {
 901                                 s/\([^\(\)]+\)/\{\}/gs;
 902                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 903                         }
 904                         # pretend as we didn't use curly braces: {} -> ()
 905                         s/\{\}/\(\)/gs;
 906
 907                         s/STACK_OF\(\)/void/gs;
 908                         s/LHASH_OF\(\)/void/gs;
 909
 910                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 911                         if (/^\#INFO:([^:]*):(.*)$/) {
 912                                 $plats = $1;
 913                                 $algs = $2;
 914                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 915                                 next;
 916                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 917                                 $s = $1;
 918                                 $k = "VARIABLE";
 919                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 920                         } elsif (/TYPEDEF_\w+_OF/s) {
 921                                 next;
 922                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 923                                 $s = $1;                # a function name!
 924                                 print STDERR "DEBUG: found function $s\n" if $debug;
 925                         } elsif (/\(/ and not (/=/)) {
 926                                 print STDERR "File $file: cannot parse: $_;\n";
 927                                 next;
 928                         } else {
 929                                 next;
 930                         }
 931
 932                         $syms{$s} = 1;
 933                         $kind{$s} = $k;
 934
 935                         $p = $plats;
 936                         $a = $algs;
 937
 938                         $platform{$s} =
 939                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 940                         $algorithm{$s} .= ','.$a;
 941
 942                         if (defined($variant{$s})) {
 943                                 foreach $v (split /;/,$variant{$s}) {
 944                                         (my $r, my $p, my $k) = split(/:/,$v);
 945                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 946                                         $syms{$r} = 1;
 947                                         if (!defined($k)) { $k = $kind{$s}; }
 948                                         $kind{$r} = $k."(".$s.")";
 949                                         $algorithm{$r} = $algorithm{$s};
 950                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 951                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 952                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 953                                 }
 954                         }
 955                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 956                 }
 957         }
 958
 959         # Prune the returned symbols
 960
 961         delete $syms{"bn_dump1"};
 962         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
 963
 964         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 965         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 966         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 967         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 968         $platform{"EVP_sha384"} = "!VMSVAX";
 969         $platform{"EVP_sha512"} = "!VMSVAX";
 970         $platform{"SHA384_Init"} = "!VMSVAX";
 971         $platform{"SHA384_Transform"} = "!VMSVAX";
 972         $platform{"SHA384_Update"} = "!VMSVAX";
 973         $platform{"SHA384_Final"} = "!VMSVAX";
 974         $platform{"SHA384"} = "!VMSVAX";
 975         $platform{"SHA512_Init"} = "!VMSVAX";
 976         $platform{"SHA512_Transform"} = "!VMSVAX";
 977         $platform{"SHA512_Update"} = "!VMSVAX";
 978         $platform{"SHA512_Final"} = "!VMSVAX";
 979         $platform{"SHA512"} = "!VMSVAX";
 980
 981
 982         # Info we know about
 983
 984         push @ret, map { $_."\\".&info_string($_,"EXIST",
 985                                               $platform{$_},
 986                                               $kind{$_},
 987                                               $algorithm{$_}) } keys %syms;
 988
 989         if (keys %unknown_algorithms) {
 990                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 991                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 992         }
 993         return(@ret);
 994 }
 995
 996 # Param: string of comma-separated platform-specs.
 997 sub reduce_platforms
 998 {
 999         my ($platforms) = @_;
1000         my $pl = defined($platforms) ? $platforms : "";
1001         my %p = map { $_ => 0 } split /,/, $pl;
1002         my $ret;
1003
1004         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1005             if $debug;
1006         # We do this, because if there's code like the following, it really
1007         # means the function exists in all cases and should therefore be
1008         # everywhere.  By increasing and decreasing, we may attain 0:
1009         #
1010         # ifndef WIN16
1011         #    int foo();
1012         # else
1013         #    int _fat foo();
1014         # endif
1015         foreach $platform (split /,/, $pl) {
1016                 if ($platform =~ /^!(.*)$/) {
1017                         $p{$1}--;
1018                 } else {
1019                         $p{$platform}++;
1020                 }
1021         }
1022         foreach $platform (keys %p) {
1023                 if ($p{$platform} == 0) { delete $p{$platform}; }
1024         }
1025
1026         delete $p{""};
1027
1028         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1029         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1030             if $debug;
1031         return $ret;
1032 }
1033
1034 sub info_string {
1035         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1036
1037         my %a = defined($algorithms) ?
1038             map { $_ => 1 } split /,/, $algorithms : ();
1039         my $k = defined($kind) ? $kind : "FUNCTION";
1040         my $ret;
1041         my $p = &reduce_platforms($platforms);
1042
1043         delete $a{""};
1044
1045         $ret = $exist;
1046         $ret .= ":".$p;
1047         $ret .= ":".$k;
1048         $ret .= ":".join(',',sort keys %a);
1049         return $ret;
1050 }
1051
1052 sub maybe_add_info {
1053         (my $name, *nums, my @symbols) = @_;
1054         my $sym;
1055         my $new_info = 0;
1056         my %syms=();
1057
1058         print STDERR "Updating $name info\n";
1059         foreach $sym (@symbols) {
1060                 (my $s, my $i) = split /\\/, $sym;
1061                 if (defined($nums{$s})) {
1062                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1063                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1064                         if (!defined($dummy) || $i ne $dummy) {
1065                                 $nums{$s} = $n."\\".$vers."\\".$i;
1066                                 $new_info++;
1067                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1068                         }
1069                 }
1070                 $syms{$s} = 1;
1071         }
1072
1073         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1074         foreach $sym (@s) {
1075                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1076                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1077                         $new_info++;
1078                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1079                 }
1080         }
1081         if ($new_info) {
1082                 print STDERR "$new_info old symbols got an info update\n";
1083                 if (!$do_rewrite) {
1084                         print STDERR "You should do a rewrite to fix this.\n";
1085                 }
1086         } else {
1087                 print STDERR "No old symbols needed info update\n";
1088         }
1089 }
1090
1091 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1092 sub is_valid
1093 {
1094         my ($keywords_txt,$platforms) = @_;
1095         my (@keywords) = split /,/,$keywords_txt;
1096         my ($falsesum, $truesum) = (0, 1);
1097
1098         # Param: one keyword
1099         sub recognise
1100         {
1101                 my ($keyword,$platforms) = @_;
1102
1103                 if ($platforms) {
1104                         # platforms
1105                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1106                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1107                         if ($keyword eq "VMS" && $VMS) { return 1; }
1108                         if ($keyword eq "WIN32" && $W32) { return 1; }
1109                         if ($keyword eq "WINNT" && $NT) { return 1; }
1110                         if ($keyword eq "OS2" && $OS2) { return 1; }
1111                         # Special platforms:
1112                         # EXPORT_VAR_AS_FUNCTION means that global variables
1113                         # will be represented as functions.  This currently
1114                         # only happens on VMS-VAX.
1115                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1116                                 return 1;
1117                         }
1118                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1119                         return 0;
1120                 } else {
1121                         # algorithms
1122                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1123
1124                         # Nothing recognise as true
1125                         return 1;
1126                 }
1127         }
1128
1129         foreach $k (@keywords) {
1130                 if ($k =~ /^!(.*)$/) {
1131                         $falsesum += &recognise($1,$platforms);
1132                 } else {
1133                         $truesum *= &recognise($k,$platforms);
1134                 }
1135         }
1136         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1137         return (!$falsesum) && $truesum;
1138 }
1139
1140 sub print_test_file
1141 {
1142         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1143         my $n = 1; my @e; my @r;
1144         my $sym; my $prev = ""; my $prefSSLeay;
1145
1146         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1147         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1148         @symbols=((sort @e),(sort @r));
1149
1150         foreach $sym (@symbols) {
1151                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1152                 my $v = 0;
1153                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1154                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1155                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1156                 if (!defined($nums{$s})) {
1157                         print STDERR "Warning: $s does not have a number assigned\n"
1158                             if(!$do_update);
1159                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1160                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1161                         if ($prev eq $s2) {
1162                                 print OUT "\t/* The following has already appeared previously */\n";
1163                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1164                         }
1165                         $prev = $s2;    # To warn about duplicates...
1166
1167                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1168                         if ($v) {
1169                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1170                         } else {
1171                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1172                         }
1173                 }
1174         }
1175 }
1176
1177 sub get_version {
1178    local *MF;
1179    my $v = '?';
1180    open MF, 'Makefile' or return $v;
1181    while (<MF>) {
1182      $v = $1, last if /^VERSION=(.*?)\s*$/;
1183    }
1184    close MF;
1185    return $v;
1186 }
1187
1188 sub print_def_file
1189 {
1190         (*OUT,my $name,*nums,my @symbols)=@_;
1191         my $n = 1; my @e; my @r; my @v; my $prev="";
1192         my $liboptions="";
1193         my $libname = $name;
1194         my $http_vendor = 'www.openssl.org/';
1195         my $version = get_version();
1196         my $what = "OpenSSL: implementation of Secure Socket Layer";
1197         my $description = "$what $version, $name - http://$http_vendor";
1198         my $prevsymversion = "", $prevprevsymversion = "";
1199         # For VMS
1200         my $prevnum = 0;
1201         my $symvtextcount = 0;
1202
1203         if ($W32)
1204                 { $libname.="32"; }
1205         elsif ($OS2)
1206                 { # DLL names should not clash on the whole system.
1207                   # However, they should not have any particular relationship
1208                   # to the name of the static library.  Chose descriptive names
1209                   # (must be at most 8 chars).
1210                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1211                   $libname = $translate{$name} || $name;
1212                   $liboptions = <<EOO;
1213 INITINSTANCE
1214 DATA MULTIPLE NONSHARED
1215 EOO
1216                   # Vendor field can't contain colon, drat; so we omit http://
1217                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1218                 }
1219
1220         if ($W32 || $OS2)
1221                 {
1222                 print OUT <<"EOF";
1223 ;
1224 ; Definition file for the DLL version of the $name library from OpenSSL
1225 ;
1226
1227 LIBRARY         $libname        $liboptions
1228
1229 EOF
1230
1231                 print "EXPORTS\n";
1232                 }
1233         elsif ($VMS)
1234                 {
1235                 my $libref = $name eq "ssl" ? "LIBCRYPTO.EXE /SHARE" : "";
1236                 print OUT <<"EOF";
1237 IDENTIFICATION="V$version"
1238 CASE_SENSITIVE=YES
1239 LIB$libname.OLB /LIBRARY
1240 $libref
1241 SYMBOL_VECTOR=(-
1242 EOF
1243                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1244                 }
1245
1246         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1247         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1248         if ($VMS) {
1249             # VMS needs to have the symbols on slot number order
1250             @symbols=(map { $_->[1] }
1251                       sort { $a->[0] <=> $b->[0] }
1252                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1253                             die "Error: $s doesn't have a number assigned\n"
1254                                 if !defined($nums{$s});
1255                             (my $n, my @rest) = split /\\/, $nums{$s};
1256                             [ $n, $_ ] } (@e, @r, @v));
1257         } else {
1258             @symbols=((sort @e),(sort @r), (sort @v));
1259         }
1260
1261         my ($baseversion, $currversion) = get_openssl_version();
1262         my $thisversion;
1263         do {
1264                 if (!defined($thisversion)) {
1265                         $thisversion = $baseversion;
1266                 } else {
1267                         $thisversion = get_next_version($thisversion);
1268                 }
1269                 foreach $sym (@symbols) {
1270                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1271                         my $v = 0;
1272                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1273                         if (!defined($nums{$s})) {
1274                                 die "Error: $s does not have a number assigned\n"
1275                                         if(!$do_update);
1276                         } else {
1277                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1278                                 next if $symversion ne $thisversion;
1279                                 my %pf = ();
1280                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1281                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1282                                 if (is_valid($p,1) && is_valid($a,0)) {
1283                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1284                                         if ($prev eq $s2) {
1285                                                 print STDERR "Warning: Symbol '",$s2,
1286                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1287                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1288                                         }
1289                                         $prev = $s2;    # To warn about duplicates...
1290                                         if($linux) {
1291                                                 if ($symversion ne $prevsymversion) {
1292                                                         if ($prevsymversion ne "") {
1293                                                                 if ($prevprevsymversion ne "") {
1294                                                                         print OUT "} OPENSSL_"
1295                                                                                                 ."$prevprevsymversion;\n\n";
1296                                                                 } else {
1297                                                                         print OUT "};\n\n";
1298                                                                 }
1299                                                         }
1300                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1301                                                         $prevprevsymversion = $prevsymversion;
1302                                                         $prevsymversion = $symversion;
1303                                                 }
1304                                                 print OUT "        $s2;\n";
1305                                         } elsif ($VMS) {
1306                                             while(++$prevnum < $n) {
1307                                                 my $symline="SPARE, SPARE -";
1308                                                 if ($symvtextcount + length($symline) + 1 > 1024) {
1309                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1310                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1311                                                 }
1312                                                 if ($symvtextcount > 16) {
1313                                                     $symline = ",".$symline;
1314                                                 }
1315                                                 print OUT "    $symline\n";
1316                                                 $symvtextcount += length($symline);
1317                                             }
1318                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1319                                             my $symtype=
1320                                                 $v ? "DATA" : "PROCEDURE";
1321                                             my $symline=
1322                                                 ($s_uc ne $s
1323                                                  ? "$s_uc/$s=$symtype, $s=$symtype"
1324                                                  : "$s=$symtype, SPARE")
1325                                                 ." -";
1326                                             if ($symvtextcount + length($symline) + 1 > 1024) {
1327                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1328                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1329                                             }
1330                                             if ($symvtextcount > 16) {
1331                                                 $symline = ",".$symline;
1332                                             }
1333                                             print OUT "    $symline\n";
1334                                             $symvtextcount += length($symline);
1335                                         } elsif($v && !$OS2) {
1336                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1337                                                                 ($W32)?"":"_",$s2,$n;
1338                                         } else {
1339                                                 printf OUT "    %s%-39s @%d\n",
1340                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1341                                         }
1342                                 }
1343                         }
1344                 }
1345         } while ($thisversion ne $currversion);
1346         if ($linux) {
1347                 if ($prevprevsymversion ne "") {
1348                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1349                 } else {
1350                         print OUT "    local: *;\n};\n\n";
1351                 }
1352         } elsif ($VMS) {
1353             print OUT ")\n";
1354             (my $libvmaj, my $libvmin, my $libvedit) =
1355                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1356             # The reason to multiply the edit number with 100 is to make space
1357             # for the possibility that we want to encode the patch letters
1358             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1359         }
1360         printf OUT "\n";
1361 }
1362
1363 sub load_numbers
1364 {
1365         my($name)=@_;
1366         my(@a,%ret);
1367         my $prevversion;
1368
1369         $max_num = 0;
1370         $num_noinfo = 0;
1371         $prev = "";
1372         $prev_cnt = 0;
1373
1374         my ($baseversion, $currversion) = get_openssl_version();
1375
1376         open(IN,"<$name") || die "unable to open $name:$!\n";
1377         while (<IN>) {
1378                 chop;
1379                 s/#.*$//;
1380                 next if /^\s*$/;
1381                 @a=split;
1382                 if (defined $ret{$a[0]}) {
1383                         # This is actually perfectly OK
1384                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1385                 }
1386                 if ($max_num > $a[1]) {
1387                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1388                 }
1389                 elsif ($max_num == $a[1]) {
1390                         # This is actually perfectly OK
1391                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1392                         if ($a[0] eq $prev) {
1393                                 $prev_cnt++;
1394                                 $a[0] .= "{$prev_cnt}";
1395                         }
1396                 }
1397                 else {
1398                         $prev_cnt = 0;
1399                 }
1400                 if ($#a < 2) {
1401                         # Existence will be proven later, in do_defs
1402                         $ret{$a[0]}=$a[1];
1403                         $num_noinfo++;
1404                 } else {
1405                         #Sanity check the version number
1406                         if (defined $prevversion) {
1407                                 check_version_lte($prevversion, $a[2]);
1408                         }
1409                         check_version_lte($a[2], $currversion);
1410                         $prevversion = $a[2];
1411                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1412                 }
1413                 $max_num = $a[1] if $a[1] > $max_num;
1414                 $prev=$a[0];
1415         }
1416         if ($num_noinfo) {
1417                 print STDERR "Warning: $num_noinfo symbols were without info.";
1418                 if ($do_rewrite) {
1419                         printf STDERR "  The rewrite will fix this.\n";
1420                 } else {
1421                         printf STDERR "  You should do a rewrite to fix this.\n";
1422                 }
1423         }
1424         close(IN);
1425         return(%ret);
1426 }
1427
1428 sub parse_number
1429 {
1430         (my $str, my $what) = @_;
1431         (my $n, my $v, my $i) = split(/\\/,$str);
1432         if ($what eq "n") {
1433                 return $n;
1434         } else {
1435                 return $i;
1436         }
1437 }
1438
1439 sub rewrite_numbers
1440 {
1441         (*OUT,$name,*nums,@symbols)=@_;
1442         my $thing;
1443
1444         print STDERR "Rewriting $name\n";
1445
1446         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1447         my $r; my %r; my %rsyms;
1448         foreach $r (@r) {
1449                 (my $s, my $i) = split /\\/, $r;
1450                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1451                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1452                 $r{$a} = $s."\\".$i;
1453                 $rsyms{$s} = 1;
1454         }
1455
1456         my %syms = ();
1457         foreach $_ (@symbols) {
1458                 (my $n, my $i) = split /\\/;
1459                 $syms{$n} = 1;
1460         }
1461
1462         my @s=sort {
1463             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1464             || $a cmp $b
1465         } keys %nums;
1466         foreach $sym (@s) {
1467                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1468                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1469                 next if defined($rsyms{$sym});
1470                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1471                 $i="NOEXIST::FUNCTION:"
1472                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1473                 my $s2 = $sym;
1474                 $s2 =~ s/\{[0-9]+\}$//;
1475                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1476                 if (exists $r{$sym}) {
1477                         (my $s, $i) = split /\\/,$r{$sym};
1478                         my $s2 = $s;
1479                         $s2 =~ s/\{[0-9]+\}$//;
1480                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2,$n,$vers,$i;
1481                 }
1482         }
1483 }
1484
1485 sub update_numbers
1486 {
1487         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1488         my $new_syms = 0;
1489         my $basevers;
1490         my $vers;
1491
1492         ($basevers, $vers) = get_openssl_version();
1493
1494         print STDERR "Updating $name numbers\n";
1495
1496         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1497         my $r; my %r; my %rsyms;
1498         foreach $r (@r) {
1499                 (my $s, my $i) = split /\\/, $r;
1500                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1501                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1502                 $r{$a} = $s."\\".$i;
1503                 $rsyms{$s} = 1;
1504         }
1505
1506         foreach $sym (@symbols) {
1507                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1508                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1509                 next if defined($rsyms{$sym});
1510                 die "ERROR: Symbol $sym had no info attached to it."
1511                     if $i eq "";
1512                 if (!exists $nums{$s}) {
1513                         $new_syms++;
1514                         my $s2 = $s;
1515                         $s2 =~ s/\{[0-9]+\}$//;
1516                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1517                         if (exists $r{$s}) {
1518                                 ($s, $i) = split /\\/,$r{$s};
1519                                 $s =~ s/\{[0-9]+\}$//;
1520                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1521                         }
1522                 }
1523         }
1524         if($new_syms) {
1525                 print STDERR "$new_syms New symbols added\n";
1526         } else {
1527                 print STDERR "No New symbols Added\n";
1528         }
1529 }
1530
1531 sub check_existing
1532 {
1533         (*nums, my @symbols)=@_;
1534         my %existing; my @remaining;
1535         @remaining=();
1536         foreach $sym (@symbols) {
1537                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1538                 $existing{$s}=1;
1539         }
1540         foreach $sym (keys %nums) {
1541                 if (!exists $existing{$sym}) {
1542                         push @remaining, $sym;
1543                 }
1544         }
1545         if(@remaining) {
1546                 print STDERR "The following symbols do not seem to exist:\n";
1547                 foreach $sym (@remaining) {
1548                         print STDERR "\t",$sym,"\n";
1549                 }
1550         }
1551 }
1552
1553 sub count_parens
1554 {
1555         my $line = shift(@_);
1556
1557         my $open = $line =~ tr/\(//;
1558         my $close = $line =~ tr/\)//;
1559
1560         return $open - $close;
1561 }
1562
1563 #Parse opensslv.h to get the current version number. Also work out the base
1564 #version, i.e. the lowest version number that is binary compatible with this
1565 #version
1566 sub get_openssl_version()
1567 {
1568         open (IN, "include/openssl/opensslv.h") || die "Can't open opensslv.h";
1569
1570         while(<IN>) {
1571                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1572                         my $suffix = $2;
1573                         my $baseversion = $1 =~ s/\./_/gr;
1574                         close IN;
1575                         return ($baseversion."0", $baseversion.$suffix);
1576                 }
1577         }
1578         die "Can't find OpenSSL version number\n";
1579 }
1580
1581 #Given an OpenSSL version number, calculate the next version number. If the
1582 #version number gets to a.b.czz then we go to a.b.(c+1)
1583 sub get_next_version()
1584 {
1585         my $thisversion = shift;
1586
1587         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1588
1589         if ($letter eq "zz") {
1590                 my $lastnum = substr($base, -1);
1591                 return substr($base, 0, length($base)-1).(++$lastnum);
1592         }
1593         return $base.get_next_letter($letter);
1594 }
1595
1596 #Given the letters off the end of an OpenSSL version string, calculate what
1597 #the letters for the next release would be.
1598 sub get_next_letter()
1599 {
1600         my $thisletter = shift;
1601         my $baseletter = "";
1602         my $endletter;
1603
1604         if ($thisletter eq "") {
1605                 return "a";
1606         }
1607         if ((length $thisletter) > 1) {
1608                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1609         } else {
1610                 $endletter = $thisletter;
1611         }
1612
1613         if ($endletter eq "z") {
1614                 return $thisletter."a";
1615         } else {
1616                 return $baseletter.(++$endletter);
1617         }
1618 }
1619
1620 #Check if a version is less than or equal to the current version. Its a fatal
1621 #error if not. They must also only differ in letters, or the last number (i.e.
1622 #the first two numbers must be the same)
1623 sub check_version_lte()
1624 {
1625         my ($testversion, $currversion) = @_;
1626         my $lentv;
1627         my $lencv;
1628         my $cvbase;
1629
1630         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1631         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1632
1633         #Die if we can't parse the version numbers or they don't look sane
1634         die "Invalid version number: $testversion and $currversion\n"
1635                 if (!defined($cvnums) || !defined($tvnums)
1636                         || length($cvnums) != 5
1637                         || length($tvnums) != 5);
1638
1639         #If the base versions (without letters) don't match check they only differ
1640         #in the last number
1641         if ($cvnums ne $tvnums) {
1642                 die "Invalid version number: $testversion "
1643                         ."for current version $currversion\n"
1644                         if (substr($cvnums, -1) < substr($tvnums, -1)
1645                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1646                 return;
1647         }
1648         #If we get here then the base version (i.e. the numbers) are the same - they
1649         #only differ in the letters
1650
1651         $lentv = length $testversion;
1652         $lencv = length $currversion;
1653
1654         #If the testversion has more letters than the current version then it must
1655         #be later (or malformed)
1656         if ($lentv > $lencv) {
1657                 die "Invalid version number: $testversion "
1658                         ."is greater than $currversion\n";
1659         }
1660
1661         #Get the last letter from the current version
1662         my ($cvletter) = $currversion =~ /([a-z])$/;
1663         if (defined $cvletter) {
1664                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1665         } else {
1666                 $cvbase = $currversion;
1667         }
1668         die "Unable to parse version number $currversion" if (!defined $cvbase);
1669         my $tvbase;
1670         my ($tvletter) = $testversion =~ /([a-z])$/;
1671         if (defined $tvletter) {
1672                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1673         } else {
1674                 $tvbase = $testversion;
1675         }
1676         die "Unable to parse version number $testversion" if (!defined $tvbase);
1677
1678         if ($lencv > $lentv) {
1679                 #If current version has more letters than testversion then testversion
1680                 #minus the final letter must be a substring of the current version
1681                 die "Invalid version number $testversion "
1682                         ."is greater than $currversion or is invalid\n"
1683                         if (index($cvbase, $tvbase) != 0);
1684         } else {
1685                 #If both versions have the same number of letters then they must be
1686                 #equal up to the last letter, and the last letter in testversion must
1687                 #be less than or equal to the last letter in current version.
1688                 die "Invalid version number $testversion "
1689                         ."is greater than $currversion\n"
1690                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1691         }
1692 }
1693
1694 sub do_deprecated()
1695 {
1696         my ($decl, $plats, $algs) = @_;
1697         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1698             or die "Bad DEPRECTEDIN: $decl\n";
1699         my $info1 .= "#INFO:";
1700         $info1 .= join(',', @{$plats}) . ":";
1701         my $info2 = $info1;
1702         $info1 .= join(',',@{$algs}, $1) . ";";
1703         $info2 .= join(',',@{$algs}) . ";";
1704         return $info1 . $2 . ";" . $info2;
1705 }