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 # Previously, they had the following format:
  10 #
  11 #       routine-name    nnnn
  12 #
  13 # But that isn't enough for a number of reasons, the first on being that
  14 # this format is (needlessly) very Win32-centric, and even then...
  15 # One of the biggest problems is that there's no information about what
  16 # routines should actually be used, which varies with what crypto algorithms
  17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
  18 # need to keep track of the global variables as well as the functions.
  19 #
  20 # So, a remake of this script is done so as to include information on the
  21 # kind of symbol it is (function or variable) and what algorithms they're
  22 # part of.  This will allow easy translating to .def files or the corresponding
  23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
  24 # file).
  25 #
  26 # The format now becomes:
  27 #
  28 #       routine-name    nnnn    info
  29 #
  30 # and the "info" part is actually a colon-separated string of fields with
  31 # the following meaning:
  32 #
  33 #       existence:platform:kind:algorithms
  34 #
  35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  36 #   found somewhere in the source,
  37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  38 #   comma-separated list of the platform, just as they are if the symbol exists
  39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  40 #   symbol name variants for platforms where the names are too long for the
  41 #   compiler or linker, or if the systems is case insensitive and there is a
  42 #   clash, or the symbol is implemented differently (see
  43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  44 #   in the file crypto/symhacks.h.
  45 #   The semantics for the platforms is that every item is checked against the
  46 #   environment.  For the negative items ("!FOO"), if any of them is false
  47 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  48 #   used.  For the positive itms, if all of them are false in the environment,
  49 #   the corresponding symbol can't be used.  Any combination of positive and
  50 #   negative items are possible, and of course leave room for some redundancy.
  51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  53 #   exclude symbols that are part of an algorithm that some user wants to
  54 #   exclude.
  55 #
  56
  57 my $debug=0;
  58
  59 my $crypto_num= "util/libeay.num";
  60 my $ssl_num=    "util/ssleay.num";
  61 my $libname;
  62
  63 my $do_update = 0;
  64 my $do_rewrite = 1;
  65 my $do_crypto = 0;
  66 my $do_ssl = 0;
  67 my $do_ctest = 0;
  68 my $do_ctestall = 0;
  69 my $do_checkexist = 0;
  70
  71 my $VMSVAX=0;
  72 my $VMSAlpha=0;
  73 my $VMS=0;
  74 my $W32=0;
  75 my $W16=0;
  76 my $NT=0;
  77 my $OS2=0;
  78 # Set this to make typesafe STACK definitions appear in DEF
  79 my $safe_stack_def = 0;
  80
  81 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
  82                         "EXPORT_VAR_AS_FUNCTION", "ZLIB" );
  83 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
  84 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  85                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  86                          "SHA256", "SHA512", "RIPEMD",
  87                          "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA", "HMAC", "AES", "CAMELLIA", "SEED",
  88                          # Envelope "algorithms"
  89                          "EVP", "X509", "ASN1_TYPEDEFS",
  90                          # Helper "algorithms"
  91                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  92                          "LOCKING",
  93                          # External "algorithms"
  94                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
  95                          # Engines
  96                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  97                          # RFC3779 support
  98                          "RFC3779",
  99                          # TLS extension support
 100                          "TLSEXT",
 101                          # CMS
 102                          "CMS",
 103                          # CryptoAPI Engine
 104                          "CAPIENG",
 105                          # Deprecated functions
 106                          "DEPRECATED" );
 107
 108 my $options="";
 109 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 110 while(<IN>) {
 111     $options=$1 if (/^OPTIONS=(.*)$/);
 112 }
 113 close(IN);
 114
 115 # The following ciphers may be excluded (by Configure). This means functions
 116 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 117 # in directory xxx is ignored.
 118 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 119 my $no_cast;
 120 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 121 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 122 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw; my $no_camellia;
 123 my $no_seed;
 124 my $no_fp_api; my $no_static_engine; my $no_gmp; my $no_deprecated;
 125 my $no_rfc3779; my $no_tlsext; my $no_cms; my $no_capieng;
 126
 127
 128 foreach (@ARGV, split(/ /, $options))
 129         {
 130         $debug=1 if $_ eq "debug";
 131         $W32=1 if $_ eq "32";
 132         $W16=1 if $_ eq "16";
 133         if($_ eq "NT") {
 134                 $W32 = 1;
 135                 $NT = 1;
 136         }
 137         if ($_ eq "VMS-VAX") {
 138                 $VMS=1;
 139                 $VMSVAX=1;
 140         }
 141         if ($_ eq "VMS-Alpha") {
 142                 $VMS=1;
 143                 $VMSAlpha=1;
 144         }
 145         $VMS=1 if $_ eq "VMS";
 146         $OS2=1 if $_ eq "OS2";
 147         if ($_ eq "zlib" || $_ eq "zlib-dynamic"
 148                          || $_ eq "enable-zlib-dynamic") {
 149                 $zlib = 1;
 150         }
 151
 152
 153         $do_ssl=1 if $_ eq "ssleay";
 154         if ($_ eq "ssl") {
 155                 $do_ssl=1;
 156                 $libname=$_
 157         }
 158         $do_crypto=1 if $_ eq "libeay";
 159         if ($_ eq "crypto") {
 160                 $do_crypto=1;
 161                 $libname=$_;
 162         }
 163         $no_static_engine=1 if $_ eq "no-static-engine";
 164         $no_static_engine=0 if $_ eq "enable-static-engine";
 165         $do_update=1 if $_ eq "update";
 166         $do_rewrite=1 if $_ eq "rewrite";
 167         $do_ctest=1 if $_ eq "ctest";
 168         $do_ctestall=1 if $_ eq "ctestall";
 169         $do_checkexist=1 if $_ eq "exist";
 170         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 171
 172         if    (/^no-rc2$/)      { $no_rc2=1; }
 173         elsif (/^no-rc4$/)      { $no_rc4=1; }
 174         elsif (/^no-rc5$/)      { $no_rc5=1; }
 175         elsif (/^no-idea$/)     { $no_idea=1; }
 176         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 177         elsif (/^no-bf$/)       { $no_bf=1; }
 178         elsif (/^no-cast$/)     { $no_cast=1; }
 179         elsif (/^no-md2$/)      { $no_md2=1; }
 180         elsif (/^no-md4$/)      { $no_md4=1; }
 181         elsif (/^no-md5$/)      { $no_md5=1; }
 182         elsif (/^no-sha$/)      { $no_sha=1; }
 183         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 184         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 185         elsif (/^no-rsa$/)      { $no_rsa=1; }
 186         elsif (/^no-dsa$/)      { $no_dsa=1; }
 187         elsif (/^no-dh$/)       { $no_dh=1; }
 188         elsif (/^no-ec$/)       { $no_ec=1; }
 189         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 190         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 191         elsif (/^no-hmac$/)     { $no_hmac=1; }
 192         elsif (/^no-aes$/)      { $no_aes=1; }
 193         elsif (/^no-camellia$/) { $no_camellia=1; }
 194         elsif (/^no-seed$/)     { $no_seed=1; }
 195         elsif (/^no-evp$/)      { $no_evp=1; }
 196         elsif (/^no-lhash$/)    { $no_lhash=1; }
 197         elsif (/^no-stack$/)    { $no_stack=1; }
 198         elsif (/^no-err$/)      { $no_err=1; }
 199         elsif (/^no-buffer$/)   { $no_buffer=1; }
 200         elsif (/^no-bio$/)      { $no_bio=1; }
 201         #elsif (/^no-locking$/) { $no_locking=1; }
 202         elsif (/^no-comp$/)     { $no_comp=1; }
 203         elsif (/^no-dso$/)      { $no_dso=1; }
 204         elsif (/^no-krb5$/)     { $no_krb5=1; }
 205         elsif (/^no-engine$/)   { $no_engine=1; }
 206         elsif (/^no-hw$/)       { $no_hw=1; }
 207         elsif (/^no-gmp$/)      { $no_gmp=1; }
 208         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 209         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
 210         elsif (/^no-cms$/)      { $no_cms=1; }
 211         elsif (/^no-capieng$/)  { $no_capieng=1; }
 212         }
 213
 214
 215 if (!$libname) {
 216         if ($do_ssl) {
 217                 $libname="SSLEAY";
 218         }
 219         if ($do_crypto) {
 220                 $libname="LIBEAY";
 221         }
 222 }
 223
 224 # If no platform is given, assume WIN32
 225 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 226         $W32 = 1;
 227 }
 228
 229 # Add extra knowledge
 230 if ($W16) {
 231         $no_fp_api=1;
 232 }
 233
 234 if (!$do_ssl && !$do_crypto)
 235         {
 236         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 237         exit(1);
 238         }
 239
 240 %ssl_list=&load_numbers($ssl_num);
 241 $max_ssl = $max_num;
 242 %crypto_list=&load_numbers($crypto_num);
 243 $max_crypto = $max_num;
 244
 245 my $ssl="ssl/ssl.h";
 246 $ssl.=" ssl/kssl.h";
 247 $ssl.=" ssl/tls1.h";
 248
 249 my $crypto ="crypto/crypto.h";
 250 $crypto.=" crypto/o_dir.h";
 251 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 252 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 253 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 254 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 255 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 256 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 257 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 258 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 259 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 260 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 261 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 262 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 263 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 264 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 265 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 266 $crypto.=" crypto/seed/seed.h"; # unless $no_seed;
 267
 268 $crypto.=" crypto/bn/bn.h";
 269 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 270 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 271 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 272 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 273 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 274 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 275 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 276
 277 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 278 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 279 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 280 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 281 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 282 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 283 $crypto.=" crypto/conf/conf.h";
 284 $crypto.=" crypto/txt_db/txt_db.h";
 285
 286 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 287 $crypto.=" crypto/objects/objects.h";
 288 $crypto.=" crypto/pem/pem.h";
 289 #$crypto.=" crypto/meth/meth.h";
 290 $crypto.=" crypto/asn1/asn1.h";
 291 $crypto.=" crypto/asn1/asn1t.h";
 292 $crypto.=" crypto/asn1/asn1_mac.h";
 293 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 294 $crypto.=" crypto/pkcs7/pkcs7.h";
 295 $crypto.=" crypto/pkcs12/pkcs12.h";
 296 $crypto.=" crypto/x509/x509.h";
 297 $crypto.=" crypto/x509/x509_vfy.h";
 298 $crypto.=" crypto/x509v3/x509v3.h";
 299 $crypto.=" crypto/rand/rand.h";
 300 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 301 $crypto.=" crypto/ocsp/ocsp.h";
 302 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 303 $crypto.=" crypto/krb5/krb5_asn.h";
 304 $crypto.=" crypto/tmdiff.h";
 305 $crypto.=" crypto/store/store.h";
 306 $crypto.=" crypto/pqueue/pqueue.h";
 307 $crypto.=" crypto/cms/cms.h";
 308
 309 my $symhacks="crypto/symhacks.h";
 310
 311 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 312 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 313
 314 if ($do_update) {
 315
 316 if ($do_ssl == 1) {
 317
 318         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 319         if ($do_rewrite == 1) {
 320                 open(OUT, ">$ssl_num");
 321                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 322         } else {
 323                 open(OUT, ">>$ssl_num");
 324         }
 325         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 326         close OUT;
 327 }
 328
 329 if($do_crypto == 1) {
 330
 331         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 332         if ($do_rewrite == 1) {
 333                 open(OUT, ">$crypto_num");
 334                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 335         } else {
 336                 open(OUT, ">>$crypto_num");
 337         }
 338         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 339         close OUT;
 340 }
 341
 342 } elsif ($do_checkexist) {
 343         &check_existing(*ssl_list, @ssl_symbols)
 344                 if $do_ssl == 1;
 345         &check_existing(*crypto_list, @crypto_symbols)
 346                 if $do_crypto == 1;
 347 } elsif ($do_ctest || $do_ctestall) {
 348
 349         print <<"EOF";
 350
 351 /* Test file to check all DEF file symbols are present by trying
 352  * to link to all of them. This is *not* intended to be run!
 353  */
 354
 355 int main()
 356 {
 357 EOF
 358         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 359                 if $do_ssl == 1;
 360
 361         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 362                 if $do_crypto == 1;
 363
 364         print "}\n";
 365
 366 } else {
 367
 368         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 369                 if $do_ssl == 1;
 370
 371         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 372                 if $do_crypto == 1;
 373
 374 }
 375
 376
 377 sub do_defs
 378 {
 379         my($name,$files,$symhacksfile)=@_;
 380         my $file;
 381         my @ret;
 382         my %syms;
 383         my %platform;           # For anything undefined, we assume ""
 384         my %kind;               # For anything undefined, we assume "FUNCTION"
 385         my %algorithm;          # For anything undefined, we assume ""
 386         my %variant;
 387         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 388                                 # is the same name as the original.
 389         my $cpp;
 390         my %unknown_algorithms = ();
 391
 392         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 393                 {
 394                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 395                 open(IN,"<$file") || die "unable to open $file:$!\n";
 396                 my $line = "", my $def= "";
 397                 my %tag = (
 398                         (map { $_ => 0 } @known_platforms),
 399                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 400                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 401                         NOPROTO         => 0,
 402                         PERL5           => 0,
 403                         _WINDLL         => 0,
 404                         CONST_STRICT    => 0,
 405                         TRUE            => 1,
 406                 );
 407                 my $symhacking = $file eq $symhacksfile;
 408                 my @current_platforms = ();
 409                 my @current_algorithms = ();
 410
 411                 # params: symbol, alias, platforms, kind
 412                 # The reason to put this subroutine in a variable is that
 413                 # it will otherwise create it's own, unshared, version of
 414                 # %tag and %variant...
 415                 my $make_variant = sub
 416                 {
 417                         my ($s, $a, $p, $k) = @_;
 418                         my ($a1, $a2);
 419
 420                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 421                         if (defined($p))
 422                         {
 423                                 $a1 = join(",",$p,
 424                                            grep(!/^$/,
 425                                                 map { $tag{$_} == 1 ? $_ : "" }
 426                                                 @known_platforms));
 427                         }
 428                         else
 429                         {
 430                                 $a1 = join(",",
 431                                            grep(!/^$/,
 432                                                 map { $tag{$_} == 1 ? $_ : "" }
 433                                                 @known_platforms));
 434                         }
 435                         $a2 = join(",",
 436                                    grep(!/^$/,
 437                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 438                                         @known_ossl_platforms));
 439                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 440                         if ($a1 eq "") { $a1 = $a2; }
 441                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 442                         if ($a eq $s)
 443                         {
 444                                 if (!defined($variant_cnt{$s}))
 445                                 {
 446                                         $variant_cnt{$s} = 0;
 447                                 }
 448                                 $variant_cnt{$s}++;
 449                                 $a .= "{$variant_cnt{$s}}";
 450                         }
 451                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 452                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 453                         if (!grep(/^$togrep$/,
 454                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 455                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 456                                 $variant{$s} .= $toadd;
 457                         }
 458                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 459                 };
 460
 461                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 462                 while(<IN>) {
 463                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 464                                 {
 465                                 undef @tag;
 466                                 last;
 467                                 }
 468                         if ($line ne '') {
 469                                 $_ = $line . $_;
 470                                 $line = '';
 471                         }
 472
 473                         if (/\\$/) {
 474                                 chomp; # remove eol
 475                                 chop; # remove ending backslash
 476                                 $line = $_;
 477                                 next;
 478                         }
 479
 480                         if(/\/\*/) {
 481                                 if (not /\*\//) {       # multiline comment...
 482                                         $line = $_;     # ... just accumulate
 483                                         next;
 484                                 } else {
 485                                         s/\/\*.*?\*\///gs;# wipe it
 486                                 }
 487                         }
 488
 489                         if ($cpp) {
 490                                 $cpp++ if /^#\s*if/;
 491                                 $cpp-- if /^#\s*endif/;
 492                                 next;
 493                         }
 494                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 495
 496                         s/{[^{}]*}//gs;                      # ignore {} blocks
 497                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 498                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 499                         if (/^\#\s*ifndef\s+(.*)/) {
 500                                 push(@tag,"-");
 501                                 push(@tag,$1);
 502                                 $tag{$1}=-1;
 503                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 504                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 505                                 push(@tag,"-");
 506                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 507                                         my $tmp_1 = $1;
 508                                         my $tmp_;
 509                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 510                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 511                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 512                                                 push(@tag,$1);
 513                                                 $tag{$1}=-1;
 514                                         }
 515                                 } else {
 516                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 517                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 518                                         push(@tag,$1);
 519                                         $tag{$1}=-1;
 520                                 }
 521                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 522                                 push(@tag,"-");
 523                                 push(@tag,$1);
 524                                 $tag{$1}=1;
 525                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 526                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 527                                 push(@tag,"-");
 528                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 529                                         my $tmp_1 = $1;
 530                                         my $tmp_;
 531                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 532                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 533                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 534                                                 push(@tag,$1);
 535                                                 $tag{$1}=1;
 536                                         }
 537                                 } else {
 538                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 539                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 540                                         push(@tag,$1);
 541                                         $tag{$1}=1;
 542                                 }
 543                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 544                                 my $tag_i = $#tag;
 545                                 while($tag[$tag_i] ne "-") {
 546                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 547                                                 $tag{$tag[$tag_i]}=2;
 548                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 549                                         }
 550                                         $tag_i--;
 551                                 }
 552                         } elsif (/^\#\s*endif/) {
 553                                 my $tag_i = $#tag;
 554                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 555                                         my $t=$tag[$tag_i];
 556                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 557                                         if ($tag{$t}==2) {
 558                                                 $tag{$t}=-1;
 559                                         } else {
 560                                                 $tag{$t}=0;
 561                                         }
 562                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 563                                         pop(@tag);
 564                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 565                                                 $t=$1;
 566                                         } else {
 567                                                 $t="";
 568                                         }
 569                                         if ($t ne ""
 570                                             && !grep(/^$t$/, @known_algorithms)) {
 571                                                 $unknown_algorithms{$t} = 1;
 572                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 573                                         }
 574                                         $tag_i--;
 575                                 }
 576                                 pop(@tag);
 577                         } elsif (/^\#\s*else/) {
 578                                 my $tag_i = $#tag;
 579                                 while($tag[$tag_i] ne "-") {
 580                                         my $t=$tag[$tag_i];
 581                                         $tag{$t}= -$tag{$t};
 582                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 583                                         $tag_i--;
 584                                 }
 585                         } elsif (/^\#\s*if\s+1/) {
 586                                 push(@tag,"-");
 587                                 # Dummy tag
 588                                 push(@tag,"TRUE");
 589                                 $tag{"TRUE"}=1;
 590                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 591                         } elsif (/^\#\s*if\s+0/) {
 592                                 push(@tag,"-");
 593                                 # Dummy tag
 594                                 push(@tag,"TRUE");
 595                                 $tag{"TRUE"}=-1;
 596                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 597                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 598                                  && $symhacking && $tag{'TRUE'} != -1) {
 599                                 # This is for aliasing.  When we find an alias,
 600                                 # we have to invert
 601                                 &$make_variant($1,$2);
 602                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 603                         }
 604                         if (/^\#/) {
 605                                 @current_platforms =
 606                                     grep(!/^$/,
 607                                          map { $tag{$_} == 1 ? $_ :
 608                                                    $tag{$_} == -1 ? "!".$_  : "" }
 609                                          @known_platforms);
 610                                 push @current_platforms
 611                                     , grep(!/^$/,
 612                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 613                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 614                                            @known_ossl_platforms);
 615                                 @current_algorithms =
 616                                     grep(!/^$/,
 617                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 618                                          @known_algorithms);
 619                                 $def .=
 620                                     "#INFO:"
 621                                         .join(',',@current_platforms).":"
 622                                             .join(',',@current_algorithms).";";
 623                                 next;
 624                         }
 625                         if ($tag{'TRUE'} != -1) {
 626                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 627                                         next;
 628                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 629                                         $def .= "int d2i_$3(void);";
 630                                         $def .= "int i2d_$3(void);";
 631                                         # Variant for platforms that do not
 632                                         # have to access globale variables
 633                                         # in shared libraries through functions
 634                                         $def .=
 635                                             "#INFO:"
 636                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 637                                                     .join(',',@current_algorithms).";";
 638                                         $def .= "OPENSSL_EXTERN int $2_it;";
 639                                         $def .=
 640                                             "#INFO:"
 641                                                 .join(',',@current_platforms).":"
 642                                                     .join(',',@current_algorithms).";";
 643                                         # Variant for platforms that have to
 644                                         # access globale variables in shared
 645                                         # libraries through functions
 646                                         &$make_variant("$2_it","$2_it",
 647                                                       "EXPORT_VAR_AS_FUNCTION",
 648                                                       "FUNCTION");
 649                                         next;
 650                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 651                                         $def .= "int d2i_$3(void);";
 652                                         $def .= "int i2d_$3(void);";
 653                                         $def .= "int $3_free(void);";
 654                                         $def .= "int $3_new(void);";
 655                                         # Variant for platforms that do not
 656                                         # have to access globale variables
 657                                         # in shared libraries through functions
 658                                         $def .=
 659                                             "#INFO:"
 660                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 661                                                     .join(',',@current_algorithms).";";
 662                                         $def .= "OPENSSL_EXTERN int $2_it;";
 663                                         $def .=
 664                                             "#INFO:"
 665                                                 .join(',',@current_platforms).":"
 666                                                     .join(',',@current_algorithms).";";
 667                                         # Variant for platforms that have to
 668                                         # access globale variables in shared
 669                                         # libraries through functions
 670                                         &$make_variant("$2_it","$2_it",
 671                                                       "EXPORT_VAR_AS_FUNCTION",
 672                                                       "FUNCTION");
 673                                         next;
 674                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 675                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 676                                         $def .= "int d2i_$1(void);";
 677                                         $def .= "int i2d_$1(void);";
 678                                         $def .= "int $1_free(void);";
 679                                         $def .= "int $1_new(void);";
 680                                         # Variant for platforms that do not
 681                                         # have to access globale variables
 682                                         # in shared libraries through functions
 683                                         $def .=
 684                                             "#INFO:"
 685                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 686                                                     .join(',',@current_algorithms).";";
 687                                         $def .= "OPENSSL_EXTERN int $1_it;";
 688                                         $def .=
 689                                             "#INFO:"
 690                                                 .join(',',@current_platforms).":"
 691                                                     .join(',',@current_algorithms).";";
 692                                         # Variant for platforms that have to
 693                                         # access globale variables in shared
 694                                         # libraries through functions
 695                                         &$make_variant("$1_it","$1_it",
 696                                                       "EXPORT_VAR_AS_FUNCTION",
 697                                                       "FUNCTION");
 698                                         next;
 699                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 700                                         $def .= "int d2i_$2(void);";
 701                                         $def .= "int i2d_$2(void);";
 702                                         # Variant for platforms that do not
 703                                         # have to access globale variables
 704                                         # in shared libraries through functions
 705                                         $def .=
 706                                             "#INFO:"
 707                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 708                                                     .join(',',@current_algorithms).";";
 709                                         $def .= "OPENSSL_EXTERN int $2_it;";
 710                                         $def .=
 711                                             "#INFO:"
 712                                                 .join(',',@current_platforms).":"
 713                                                     .join(',',@current_algorithms).";";
 714                                         # Variant for platforms that have to
 715                                         # access globale variables in shared
 716                                         # libraries through functions
 717                                         &$make_variant("$2_it","$2_it",
 718                                                       "EXPORT_VAR_AS_FUNCTION",
 719                                                       "FUNCTION");
 720                                         next;
 721                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 722                                         $def .= "int $1_free(void);";
 723                                         $def .= "int $1_new(void);";
 724                                         next;
 725                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 726                                         $def .= "int d2i_$2(void);";
 727                                         $def .= "int i2d_$2(void);";
 728                                         $def .= "int $2_free(void);";
 729                                         $def .= "int $2_new(void);";
 730                                         # Variant for platforms that do not
 731                                         # have to access globale variables
 732                                         # in shared libraries through functions
 733                                         $def .=
 734                                             "#INFO:"
 735                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 736                                                     .join(',',@current_algorithms).";";
 737                                         $def .= "OPENSSL_EXTERN int $2_it;";
 738                                         $def .=
 739                                             "#INFO:"
 740                                                 .join(',',@current_platforms).":"
 741                                                     .join(',',@current_algorithms).";";
 742                                         # Variant for platforms that have to
 743                                         # access globale variables in shared
 744                                         # libraries through functions
 745                                         &$make_variant("$2_it","$2_it",
 746                                                       "EXPORT_VAR_AS_FUNCTION",
 747                                                       "FUNCTION");
 748                                         next;
 749                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 750                                         # Variant for platforms that do not
 751                                         # have to access globale variables
 752                                         # in shared libraries through functions
 753                                         $def .=
 754                                             "#INFO:"
 755                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 756                                                     .join(',',@current_algorithms).";";
 757                                         $def .= "OPENSSL_EXTERN int $1_it;";
 758                                         $def .=
 759                                             "#INFO:"
 760                                                 .join(',',@current_platforms).":"
 761                                                     .join(',',@current_algorithms).";";
 762                                         # Variant for platforms that have to
 763                                         # access globale variables in shared
 764                                         # libraries through functions
 765                                         &$make_variant("$1_it","$1_it",
 766                                                       "EXPORT_VAR_AS_FUNCTION",
 767                                                       "FUNCTION");
 768                                         next;
 769                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 770                                         $def .= "int i2d_$1_NDEF(void);";
 771                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 772                                         next;
 773                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 774                                         $def .= "int $1_print_ctx(void);";
 775                                         next;
 776                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 777                                         $def .= "int $2_print_ctx(void);";
 778                                         next;
 779                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 780                                         next;
 781                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 782                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 783                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 784                                         # Things not in Win16
 785                                         $def .=
 786                                             "#INFO:"
 787                                                 .join(',',"!WIN16",@current_platforms).":"
 788                                                     .join(',',@current_algorithms).";";
 789                                         $def .= "int PEM_read_$1(void);";
 790                                         $def .= "int PEM_write_$1(void);";
 791                                         $def .=
 792                                             "#INFO:"
 793                                                 .join(',',@current_platforms).":"
 794                                                     .join(',',@current_algorithms).";";
 795                                         # Things that are everywhere
 796                                         $def .= "int PEM_read_bio_$1(void);";
 797                                         $def .= "int PEM_write_bio_$1(void);";
 798                                         next;
 799                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 800                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 801                                         # Things not in Win16
 802                                         $def .=
 803                                             "#INFO:"
 804                                                 .join(',',"!WIN16",@current_platforms).":"
 805                                                     .join(',',@current_algorithms).";";
 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_write_bio_$1(void);";
 813                                         next;
 814                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 815                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 816                                         # Things not in Win16
 817                                         $def .=
 818                                             "#INFO:"
 819                                                 .join(',',"!WIN16",@current_platforms).":"
 820                                                     .join(',',@current_algorithms).";";
 821                                         $def .= "int PEM_read_$1(void);";
 822                                         $def .=
 823                                             "#INFO:"
 824                                                 .join(',',@current_platforms).":"
 825                                                     .join(',',@current_algorithms).";";
 826                                         # Things that are everywhere
 827                                         $def .= "int PEM_read_bio_$1(void);";
 828                                         next;
 829                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 830                                         # Variant for platforms that do not
 831                                         # have to access globale variables
 832                                         # in shared libraries through functions
 833                                         $def .=
 834                                             "#INFO:"
 835                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 836                                                     .join(',',@current_algorithms).";";
 837                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 838                                         $def .=
 839                                             "#INFO:"
 840                                                 .join(',',@current_platforms).":"
 841                                                     .join(',',@current_algorithms).";";
 842                                         # Variant for platforms that have to
 843                                         # access globale variables in shared
 844                                         # libraries through functions
 845                                         &$make_variant("_shadow_$2","_shadow_$2",
 846                                                       "EXPORT_VAR_AS_FUNCTION",
 847                                                       "FUNCTION");
 848                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 849                                         if (/\{|\/\*|\([^\)]*$/) {
 850                                                 $line = $_;
 851                                         } else {
 852                                                 $def .= $_;
 853                                         }
 854                                 }
 855                         }
 856                 }
 857                 close(IN);
 858
 859                 my $algs;
 860                 my $plays;
 861
 862                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 863                 foreach (split /;/, $def) {
 864                         my $s; my $k = "FUNCTION"; my $p; my $a;
 865                         s/^[\n\s]*//g;
 866                         s/[\n\s]*$//g;
 867                         next if(/\#undef/);
 868                         next if(/typedef\W/);
 869                         next if(/\#define/);
 870
 871                         # Reduce argument lists to empty ()
 872                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 873                         while(/\(.*\)/s) {
 874                                 s/\([^\(\)]+\)/\{\}/gs;
 875                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 876                         }
 877                         # pretend as we didn't use curly braces: {} -> ()
 878                         s/\{\}/\(\)/gs;
 879
 880                         s/STACK_OF\(\)/void/gs;
 881
 882                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 883                         if (/^\#INFO:([^:]*):(.*)$/) {
 884                                 $plats = $1;
 885                                 $algs = $2;
 886                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 887                                 next;
 888                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 889                                 $s = $1;
 890                                 $k = "VARIABLE";
 891                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 892                         } elsif (/TYPEDEF_\w+_OF/s) {
 893                                 next;
 894                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 895                                 $s = $1;                # a function name!
 896                                 print STDERR "DEBUG: found function $s\n" if $debug;
 897                         } elsif (/\(/ and not (/=/)) {
 898                                 print STDERR "File $file: cannot parse: $_;\n";
 899                                 next;
 900                         } else {
 901                                 next;
 902                         }
 903
 904                         $syms{$s} = 1;
 905                         $kind{$s} = $k;
 906
 907                         $p = $plats;
 908                         $a = $algs;
 909                         $a .= ",BF" if($s =~ /EVP_bf/);
 910                         $a .= ",CAST" if($s =~ /EVP_cast/);
 911                         $a .= ",DES" if($s =~ /EVP_des/);
 912                         $a .= ",DSA" if($s =~ /EVP_dss/);
 913                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 914                         $a .= ",MD2" if($s =~ /EVP_md2/);
 915                         $a .= ",MD4" if($s =~ /EVP_md4/);
 916                         $a .= ",MD5" if($s =~ /EVP_md5/);
 917                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 918                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 919                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 920                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 921                         $a .= ",SHA" if($s =~ /EVP_sha/);
 922                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 923                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 924                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 925                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 926
 927                         $platform{$s} =
 928                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 929                         $algorithm{$s} .= ','.$a;
 930
 931                         if (defined($variant{$s})) {
 932                                 foreach $v (split /;/,$variant{$s}) {
 933                                         (my $r, my $p, my $k) = split(/:/,$v);
 934                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 935                                         $syms{$r} = 1;
 936                                         if (!defined($k)) { $k = $kind{$s}; }
 937                                         $kind{$r} = $k."(".$s.")";
 938                                         $algorithm{$r} = $algorithm{$s};
 939                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 940                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 941                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 942                                 }
 943                         }
 944                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 945                 }
 946         }
 947
 948         # Prune the returned symbols
 949
 950         delete $syms{"bn_dump1"};
 951         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 952
 953         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 954         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 955         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 956         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 957
 958         # Info we know about
 959
 960         push @ret, map { $_."\\".&info_string($_,"EXIST",
 961                                               $platform{$_},
 962                                               $kind{$_},
 963                                               $algorithm{$_}) } keys %syms;
 964
 965         if (keys %unknown_algorithms) {
 966                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 967                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 968         }
 969         return(@ret);
 970 }
 971
 972 # Param: string of comma-separated platform-specs.
 973 sub reduce_platforms
 974 {
 975         my ($platforms) = @_;
 976         my $pl = defined($platforms) ? $platforms : "";
 977         my %p = map { $_ => 0 } split /,/, $pl;
 978         my $ret;
 979
 980         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 981             if $debug;
 982         # We do this, because if there's code like the following, it really
 983         # means the function exists in all cases and should therefore be
 984         # everywhere.  By increasing and decreasing, we may attain 0:
 985         #
 986         # ifndef WIN16
 987         #    int foo();
 988         # else
 989         #    int _fat foo();
 990         # endif
 991         foreach $platform (split /,/, $pl) {
 992                 if ($platform =~ /^!(.*)$/) {
 993                         $p{$1}--;
 994                 } else {
 995                         $p{$platform}++;
 996                 }
 997         }
 998         foreach $platform (keys %p) {
 999                 if ($p{$platform} == 0) { delete $p{$platform}; }
1000         }
1001
1002         delete $p{""};
1003
1004         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1005         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1006             if $debug;
1007         return $ret;
1008 }
1009
1010 sub info_string {
1011         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1012
1013         my %a = defined($algorithms) ?
1014             map { $_ => 1 } split /,/, $algorithms : ();
1015         my $k = defined($kind) ? $kind : "FUNCTION";
1016         my $ret;
1017         my $p = &reduce_platforms($platforms);
1018
1019         delete $a{""};
1020
1021         $ret = $exist;
1022         $ret .= ":".$p;
1023         $ret .= ":".$k;
1024         $ret .= ":".join(',',sort keys %a);
1025         return $ret;
1026 }
1027
1028 sub maybe_add_info {
1029         (my $name, *nums, my @symbols) = @_;
1030         my $sym;
1031         my $new_info = 0;
1032         my %syms=();
1033
1034         print STDERR "Updating $name info\n";
1035         foreach $sym (@symbols) {
1036                 (my $s, my $i) = split /\\/, $sym;
1037                 if (defined($nums{$s})) {
1038                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1039                         (my $n, my $dummy) = split /\\/, $nums{$s};
1040                         if (!defined($dummy) || $i ne $dummy) {
1041                                 $nums{$s} = $n."\\".$i;
1042                                 $new_info++;
1043                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1044                         }
1045                 }
1046                 $syms{$s} = 1;
1047         }
1048
1049         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1050         foreach $sym (@s) {
1051                 (my $n, my $i) = split /\\/, $nums{$sym};
1052                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1053                         $new_info++;
1054                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1055                 }
1056         }
1057         if ($new_info) {
1058                 print STDERR "$new_info old symbols got an info update\n";
1059                 if (!$do_rewrite) {
1060                         print STDERR "You should do a rewrite to fix this.\n";
1061                 }
1062         } else {
1063                 print STDERR "No old symbols needed info update\n";
1064         }
1065 }
1066
1067 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1068 sub is_valid
1069 {
1070         my ($keywords_txt,$platforms) = @_;
1071         my (@keywords) = split /,/,$keywords_txt;
1072         my ($falsesum, $truesum) = (0, 1);
1073
1074         # Param: one keyword
1075         sub recognise
1076         {
1077                 my ($keyword,$platforms) = @_;
1078
1079                 if ($platforms) {
1080                         # platforms
1081                         if ($keyword eq "VMS" && $VMS) { return 1; }
1082                         if ($keyword eq "WIN32" && $W32) { return 1; }
1083                         if ($keyword eq "WIN16" && $W16) { return 1; }
1084                         if ($keyword eq "WINNT" && $NT) { return 1; }
1085                         if ($keyword eq "OS2" && $OS2) { return 1; }
1086                         # Special platforms:
1087                         # EXPORT_VAR_AS_FUNCTION means that global variables
1088                         # will be represented as functions.  This currently
1089                         # only happens on VMS-VAX.
1090                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1091                                 return 1;
1092                         }
1093                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1094                         return 0;
1095                 } else {
1096                         # algorithms
1097                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1098                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1099                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1100                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1101                         if ($keyword eq "DES" && $no_des) { return 0; }
1102                         if ($keyword eq "BF" && $no_bf) { return 0; }
1103                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1104                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1105                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1106                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1107                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1108                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1109                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1110                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1111                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1112                         if ($keyword eq "DH" && $no_dh) { return 0; }
1113                         if ($keyword eq "EC" && $no_ec) { return 0; }
1114                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1115                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1116                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1117                         if ($keyword eq "AES" && $no_aes) { return 0; }
1118                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1119                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1120                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1121                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1122                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1123                         if ($keyword eq "ERR" && $no_err) { return 0; }
1124                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1125                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1126                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1127                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1128                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1129                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1130                         if ($keyword eq "HW" && $no_hw) { return 0; }
1131                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1132                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1133                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1134                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1135                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1136                         if ($keyword eq "CMS" && $no_cms) { return 0; }
1137                         if ($keyword eq "CAPIENG" && $no_capieng) { return 0; }
1138                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1139
1140                         # Nothing recognise as true
1141                         return 1;
1142                 }
1143         }
1144
1145         foreach $k (@keywords) {
1146                 if ($k =~ /^!(.*)$/) {
1147                         $falsesum += &recognise($1,$platforms);
1148                 } else {
1149                         $truesum *= &recognise($k,$platforms);
1150                 }
1151         }
1152         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1153         return (!$falsesum) && $truesum;
1154 }
1155
1156 sub print_test_file
1157 {
1158         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1159         my $n = 1; my @e; my @r;
1160         my $sym; my $prev = ""; my $prefSSLeay;
1161
1162         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1163         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1164         @symbols=((sort @e),(sort @r));
1165
1166         foreach $sym (@symbols) {
1167                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1168                 my $v = 0;
1169                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1170                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1171                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1172                 if (!defined($nums{$s})) {
1173                         print STDERR "Warning: $s does not have a number assigned\n"
1174                             if(!$do_update);
1175                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1176                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1177                         if ($prev eq $s2) {
1178                                 print OUT "\t/* The following has already appeared previously */\n";
1179                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1180                         }
1181                         $prev = $s2;    # To warn about duplicates...
1182
1183                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1184                         if ($v) {
1185                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1186                         } else {
1187                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1188                         }
1189                 }
1190         }
1191 }
1192
1193 sub get_version {
1194    local *MF;
1195    my $v = '?';
1196    open MF, 'Makefile' or return $v;
1197    while (<MF>) {
1198      $v = $1, last if /^VERSION=(.*?)\s*$/;
1199    }
1200    close MF;
1201    return $v;
1202 }
1203
1204 sub print_def_file
1205 {
1206         (*OUT,my $name,*nums,my @symbols)=@_;
1207         my $n = 1; my @e; my @r; my @v; my $prev="";
1208         my $liboptions="";
1209         my $libname = $name;
1210         my $http_vendor = 'www.openssl.org/';
1211         my $version = get_version();
1212         my $what = "OpenSSL: implementation of Secure Socket Layer";
1213         my $description = "$what $version, $name - http://$http_vendor";
1214
1215         if ($W32)
1216                 { $libname.="32"; }
1217         elsif ($W16)
1218                 { $libname.="16"; }
1219         elsif ($OS2)
1220                 { # DLL names should not clash on the whole system.
1221                   # However, they should not have any particular relationship
1222                   # to the name of the static library.  Chose descriptive names
1223                   # (must be at most 8 chars).
1224                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1225                   $libname = $translate{$name} || $name;
1226                   $liboptions = <<EOO;
1227 INITINSTANCE
1228 DATA MULTIPLE NONSHARED
1229 EOO
1230                   # Vendor field can't contain colon, drat; so we omit http://
1231                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1232                 }
1233
1234         print OUT <<"EOF";
1235 ;
1236 ; Definition file for the DLL version of the $name library from OpenSSL
1237 ;
1238
1239 LIBRARY         $libname        $liboptions
1240
1241 EOF
1242
1243         if ($W16) {
1244                 print <<"EOF";
1245 CODE            PRELOAD MOVEABLE
1246 DATA            PRELOAD MOVEABLE SINGLE
1247
1248 EXETYPE         WINDOWS
1249
1250 HEAPSIZE        4096
1251 STACKSIZE       8192
1252
1253 EOF
1254         }
1255
1256         print "EXPORTS\n";
1257
1258         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1259         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1260         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1261         @symbols=((sort @e),(sort @r), (sort @v));
1262
1263
1264         foreach $sym (@symbols) {
1265                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1266                 my $v = 0;
1267                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1268                 if (!defined($nums{$s})) {
1269                         printf STDERR "Warning: $s does not have a number assigned\n"
1270                             if(!$do_update);
1271                 } else {
1272                         (my $n, my $dummy) = split /\\/, $nums{$s};
1273                         my %pf = ();
1274                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1275                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1276                         if (is_valid($p,1) && is_valid($a,0)) {
1277                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1278                                 if ($prev eq $s2) {
1279                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1280                                 }
1281                                 $prev = $s2;    # To warn about duplicates...
1282                                 if($v && !$OS2) {
1283                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1284                                 } else {
1285                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1286                                 }
1287                         }
1288                 }
1289         }
1290         printf OUT "\n";
1291 }
1292
1293 sub load_numbers
1294 {
1295         my($name)=@_;
1296         my(@a,%ret);
1297
1298         $max_num = 0;
1299         $num_noinfo = 0;
1300         $prev = "";
1301         $prev_cnt = 0;
1302
1303         open(IN,"<$name") || die "unable to open $name:$!\n";
1304         while (<IN>) {
1305                 chop;
1306                 s/#.*$//;
1307                 next if /^\s*$/;
1308                 @a=split;
1309                 if (defined $ret{$a[0]}) {
1310                         # This is actually perfectly OK
1311                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1312                 }
1313                 if ($max_num > $a[1]) {
1314                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1315                 }
1316                 elsif ($max_num == $a[1]) {
1317                         # This is actually perfectly OK
1318                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1319                         if ($a[0] eq $prev) {
1320                                 $prev_cnt++;
1321                                 $a[0] .= "{$prev_cnt}";
1322                         }
1323                 }
1324                 else {
1325                         $prev_cnt = 0;
1326                 }
1327                 if ($#a < 2) {
1328                         # Existence will be proven later, in do_defs
1329                         $ret{$a[0]}=$a[1];
1330                         $num_noinfo++;
1331                 } else {
1332                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1333                 }
1334                 $max_num = $a[1] if $a[1] > $max_num;
1335                 $prev=$a[0];
1336         }
1337         if ($num_noinfo) {
1338                 print STDERR "Warning: $num_noinfo symbols were without info.";
1339                 if ($do_rewrite) {
1340                         printf STDERR "  The rewrite will fix this.\n";
1341                 } else {
1342                         printf STDERR "  You should do a rewrite to fix this.\n";
1343                 }
1344         }
1345         close(IN);
1346         return(%ret);
1347 }
1348
1349 sub parse_number
1350 {
1351         (my $str, my $what) = @_;
1352         (my $n, my $i) = split(/\\/,$str);
1353         if ($what eq "n") {
1354                 return $n;
1355         } else {
1356                 return $i;
1357         }
1358 }
1359
1360 sub rewrite_numbers
1361 {
1362         (*OUT,$name,*nums,@symbols)=@_;
1363         my $thing;
1364
1365         print STDERR "Rewriting $name\n";
1366
1367         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1368         my $r; my %r; my %rsyms;
1369         foreach $r (@r) {
1370                 (my $s, my $i) = split /\\/, $r;
1371                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1372                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1373                 $r{$a} = $s."\\".$i;
1374                 $rsyms{$s} = 1;
1375         }
1376
1377         my %syms = ();
1378         foreach $_ (@symbols) {
1379                 (my $n, my $i) = split /\\/;
1380                 $syms{$n} = 1;
1381         }
1382
1383         my @s=sort {
1384             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1385             || $a cmp $b
1386         } keys %nums;
1387         foreach $sym (@s) {
1388                 (my $n, my $i) = split /\\/, $nums{$sym};
1389                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1390                 next if defined($rsyms{$sym});
1391                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1392                 $i="NOEXIST::FUNCTION:"
1393                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1394                 my $s2 = $sym;
1395                 $s2 =~ s/\{[0-9]+\}$//;
1396                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1397                 if (exists $r{$sym}) {
1398                         (my $s, $i) = split /\\/,$r{$sym};
1399                         my $s2 = $s;
1400                         $s2 =~ s/\{[0-9]+\}$//;
1401                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1402                 }
1403         }
1404 }
1405
1406 sub update_numbers
1407 {
1408         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1409         my $new_syms = 0;
1410
1411         print STDERR "Updating $name numbers\n";
1412
1413         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1414         my $r; my %r; my %rsyms;
1415         foreach $r (@r) {
1416                 (my $s, my $i) = split /\\/, $r;
1417                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1418                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1419                 $r{$a} = $s."\\".$i;
1420                 $rsyms{$s} = 1;
1421         }
1422
1423         foreach $sym (@symbols) {
1424                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1425                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1426                 next if defined($rsyms{$sym});
1427                 die "ERROR: Symbol $sym had no info attached to it."
1428                     if $i eq "";
1429                 if (!exists $nums{$s}) {
1430                         $new_syms++;
1431                         my $s2 = $s;
1432                         $s2 =~ s/\{[0-9]+\}$//;
1433                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1434                         if (exists $r{$s}) {
1435                                 ($s, $i) = split /\\/,$r{$s};
1436                                 $s =~ s/\{[0-9]+\}$//;
1437                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1438                         }
1439                 }
1440         }
1441         if($new_syms) {
1442                 print STDERR "$new_syms New symbols added\n";
1443         } else {
1444                 print STDERR "No New symbols Added\n";
1445         }
1446 }
1447
1448 sub check_existing
1449 {
1450         (*nums, my @symbols)=@_;
1451         my %existing; my @remaining;
1452         @remaining=();
1453         foreach $sym (@symbols) {
1454                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1455                 $existing{$s}=1;
1456         }
1457         foreach $sym (keys %nums) {
1458                 if (!exists $existing{$sym}) {
1459                         push @remaining, $sym;
1460                 }
1461         }
1462         if(@remaining) {
1463                 print STDERR "The following symbols do not seem to exist:\n";
1464                 foreach $sym (@remaining) {
1465                         print STDERR "\t",$sym,"\n";
1466                 }
1467         }
1468 }
1469