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