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