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