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