util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libeay.num and ssleay.num,...
   9 # Previously, they had the following format:
  10 #
  11 #       routine-name    nnnn
  12 #
  13 # But that isn't enough for a number of reasons, the first on being that
  14 # this format is (needlessly) very Win32-centric, and even then...
  15 # One of the biggest problems is that there's no information about what
  16 # routines should actually be used, which varies with what crypto algorithms
  17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
  18 # need to keep track of the global variables as well as the functions.
  19 #
  20 # So, a remake of this script is done so as to include information on the
  21 # kind of symbol it is (function or variable) and what algorithms they're
  22 # part of.  This will allow easy translating to .def files or the corresponding
  23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
  24 # file).
  25 #
  26 # The format now becomes:
  27 #
  28 #       routine-name    nnnn    info
  29 #
  30 # and the "info" part is actually a colon-separated string of fields with
  31 # the following meaning:
  32 #
  33 #       existence:platform:kind:algorithms
  34 #
  35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  36 #   found somewhere in the source,
  37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  38 #   comma-separated list of the platform, just as they are if the symbol exists
  39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  40 #   symbol name variants for platforms where the names are too long for the
  41 #   compiler or linker, or if the systems is case insensitive and there is a
  42 #   clash, or the symbol is implemented differently (see
  43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  44 #   in the file crypto/symhacks.h.
  45 #   The semantics for the platforms is that every item is checked against the
  46 #   environment.  For the negative items ("!FOO"), if any of them is false
  47 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  48 #   used.  For the positive itms, if all of them are false in the environment,
  49 #   the corresponding symbol can't be used.  Any combination of positive and
  50 #   negative items are possible, and of course leave room for some redundancy.
  51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  53 #   exclude symbols that are part of an algorithm that some user wants to
  54 #   exclude.
  55 #
  56
  57 my $debug=0;
  58
  59 my $crypto_num= "util/libeay.num";
  60 my $ssl_num=    "util/ssleay.num";
  61 my $libname;
  62
  63 my $do_update = 0;
  64 my $do_rewrite = 1;
  65 my $do_crypto = 0;
  66 my $do_ssl = 0;
  67 my $do_ctest = 0;
  68 my $do_ctestall = 0;
  69 my $do_checkexist = 0;
  70
  71 my $VMSVAX=0;
  72 my $VMSAlpha=0;
  73 my $VMS=0;
  74 my $W32=0;
  75 my $W16=0;
  76 my $NT=0;
  77 my $OS2=0;
  78 # Set this to make typesafe STACK definitions appear in DEF
  79 my $safe_stack_def = 0;
  80
  81 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
  82                         "EXPORT_VAR_AS_FUNCTION" );
  83 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
  84 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  85                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  86                          "SHA256", "SHA512", "RIPEMD",
  87                          "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA",
  88                          "HMAC", "AES", "WHIRLPOOL",
  89                          # Envelope "algorithms"
  90                          "EVP", "X509", "ASN1_TYPEDEFS",
  91                          # Helper "algorithms"
  92                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  93                          "LOCKING",
  94                          # External "algorithms"
  95                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
  96                          # Engines
  97                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  98                          # Deprecated functions
  99                          "DEPRECATED" );
 100
 101 my $options="";
 102 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 103 while(<IN>) {
 104     $options=$1 if (/^OPTIONS=(.*)$/);
 105 }
 106 close(IN);
 107
 108 # The following ciphers may be excluded (by Configure). This means functions
 109 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 110 # in directory xxx is ignored.
 111 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 112 my $no_cast; my $no_whirlpool;
 113 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 114 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 115 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
 116 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
 117
 118
 119 foreach (@ARGV, split(/ /, $options))
 120         {
 121         $debug=1 if $_ eq "debug";
 122         $W32=1 if $_ eq "32";
 123         $W16=1 if $_ eq "16";
 124         if($_ eq "NT") {
 125                 $W32 = 1;
 126                 $NT = 1;
 127         }
 128         if ($_ eq "VMS-VAX") {
 129                 $VMS=1;
 130                 $VMSVAX=1;
 131         }
 132         if ($_ eq "VMS-Alpha") {
 133                 $VMS=1;
 134                 $VMSAlpha=1;
 135         }
 136         $VMS=1 if $_ eq "VMS";
 137         $OS2=1 if $_ eq "OS2";
 138
 139         $do_ssl=1 if $_ eq "ssleay";
 140         if ($_ eq "ssl") {
 141                 $do_ssl=1;
 142                 $libname=$_
 143         }
 144         $do_crypto=1 if $_ eq "libeay";
 145         if ($_ eq "crypto") {
 146                 $do_crypto=1;
 147                 $libname=$_;
 148         }
 149         $no_static_engine=1 if $_ eq "no-static-engine";
 150         $no_static_engine=0 if $_ eq "enable-static-engine";
 151         $do_update=1 if $_ eq "update";
 152         $do_rewrite=1 if $_ eq "rewrite";
 153         $do_ctest=1 if $_ eq "ctest";
 154         $do_ctestall=1 if $_ eq "ctestall";
 155         $do_checkexist=1 if $_ eq "exist";
 156         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 157
 158         if    (/^no-rc2$/)      { $no_rc2=1; }
 159         elsif (/^no-rc4$/)      { $no_rc4=1; }
 160         elsif (/^no-rc5$/)      { $no_rc5=1; }
 161         elsif (/^no-idea$/)     { $no_idea=1; }
 162         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 163         elsif (/^no-bf$/)       { $no_bf=1; }
 164         elsif (/^no-cast$/)     { $no_cast=1; }
 165         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
 166         elsif (/^no-md2$/)      { $no_md2=1; }
 167         elsif (/^no-md4$/)      { $no_md4=1; }
 168         elsif (/^no-md5$/)      { $no_md5=1; }
 169         elsif (/^no-sha$/)      { $no_sha=1; }
 170         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 171         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 172         elsif (/^no-rsa$/)      { $no_rsa=1; }
 173         elsif (/^no-dsa$/)      { $no_dsa=1; }
 174         elsif (/^no-dh$/)       { $no_dh=1; }
 175         elsif (/^no-ec$/)       { $no_ec=1; }
 176         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 177         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 178         elsif (/^no-hmac$/)     { $no_hmac=1; }
 179         elsif (/^no-aes$/)      { $no_aes=1; }
 180         elsif (/^no-evp$/)      { $no_evp=1; }
 181         elsif (/^no-lhash$/)    { $no_lhash=1; }
 182         elsif (/^no-stack$/)    { $no_stack=1; }
 183         elsif (/^no-err$/)      { $no_err=1; }
 184         elsif (/^no-buffer$/)   { $no_buffer=1; }
 185         elsif (/^no-bio$/)      { $no_bio=1; }
 186         #elsif (/^no-locking$/) { $no_locking=1; }
 187         elsif (/^no-comp$/)     { $no_comp=1; }
 188         elsif (/^no-dso$/)      { $no_dso=1; }
 189         elsif (/^no-krb5$/)     { $no_krb5=1; }
 190         elsif (/^no-engine$/)   { $no_engine=1; }
 191         elsif (/^no-hw$/)       { $no_hw=1; }
 192         elsif (/^no-gmp$/)      { $no_gmp=1; }
 193         }
 194
 195
 196 if (!$libname) {
 197         if ($do_ssl) {
 198                 $libname="SSLEAY";
 199         }
 200         if ($do_crypto) {
 201                 $libname="LIBEAY";
 202         }
 203 }
 204
 205 # If no platform is given, assume WIN32
 206 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 207         $W32 = 1;
 208 }
 209
 210 # Add extra knowledge
 211 if ($W16) {
 212         $no_fp_api=1;
 213 }
 214
 215 if (!$do_ssl && !$do_crypto)
 216         {
 217         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 218         exit(1);
 219         }
 220
 221 %ssl_list=&load_numbers($ssl_num);
 222 $max_ssl = $max_num;
 223 %crypto_list=&load_numbers($crypto_num);
 224 $max_crypto = $max_num;
 225
 226 my $ssl="ssl/ssl.h";
 227 $ssl.=" ssl/kssl.h";
 228
 229 my $crypto ="crypto/crypto.h";
 230 $crypto.=" crypto/o_dir.h";
 231 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 232 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 233 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 234 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 235 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 236 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 237 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 238 $crypto.=" crypto/whrlpool/whrlpool.h" ;
 239 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 240 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 241 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 242 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 243 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 244 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 245 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 246
 247 $crypto.=" crypto/bn/bn.h";
 248 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 249 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 250 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 251 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 252 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 253 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 254 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 255
 256 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 257 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 258 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 259 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 260 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 261 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 262 $crypto.=" crypto/conf/conf.h";
 263 $crypto.=" crypto/txt_db/txt_db.h";
 264
 265 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 266 $crypto.=" crypto/objects/objects.h";
 267 $crypto.=" crypto/pem/pem.h";
 268 #$crypto.=" crypto/meth/meth.h";
 269 $crypto.=" crypto/asn1/asn1.h";
 270 $crypto.=" crypto/asn1/asn1t.h";
 271 $crypto.=" crypto/asn1/asn1_mac.h";
 272 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 273 $crypto.=" crypto/pkcs7/pkcs7.h";
 274 $crypto.=" crypto/pkcs12/pkcs12.h";
 275 $crypto.=" crypto/x509/x509.h";
 276 $crypto.=" crypto/x509/x509_vfy.h";
 277 $crypto.=" crypto/x509v3/x509v3.h";
 278 $crypto.=" crypto/rand/rand.h";
 279 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 280 $crypto.=" crypto/ocsp/ocsp.h";
 281 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 282 $crypto.=" crypto/krb5/krb5_asn.h";
 283 $crypto.=" crypto/store/store.h";
 284 $crypto.=" crypto/pqueue/pqueue.h";
 285
 286 my $symhacks="crypto/symhacks.h";
 287
 288 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 289 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 290
 291 if ($do_update) {
 292
 293 if ($do_ssl == 1) {
 294
 295         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 296         if ($do_rewrite == 1) {
 297                 open(OUT, ">$ssl_num");
 298                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 299         } else {
 300                 open(OUT, ">>$ssl_num");
 301         }
 302         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 303         close OUT;
 304 }
 305
 306 if($do_crypto == 1) {
 307
 308         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 309         if ($do_rewrite == 1) {
 310                 open(OUT, ">$crypto_num");
 311                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 312         } else {
 313                 open(OUT, ">>$crypto_num");
 314         }
 315         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 316         close OUT;
 317 }
 318
 319 } elsif ($do_checkexist) {
 320         &check_existing(*ssl_list, @ssl_symbols)
 321                 if $do_ssl == 1;
 322         &check_existing(*crypto_list, @crypto_symbols)
 323                 if $do_crypto == 1;
 324 } elsif ($do_ctest || $do_ctestall) {
 325
 326         print <<"EOF";
 327
 328 /* Test file to check all DEF file symbols are present by trying
 329  * to link to all of them. This is *not* intended to be run!
 330  */
 331
 332 int main()
 333 {
 334 EOF
 335         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 336                 if $do_ssl == 1;
 337
 338         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 339                 if $do_crypto == 1;
 340
 341         print "}\n";
 342
 343 } else {
 344
 345         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 346                 if $do_ssl == 1;
 347
 348         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 349                 if $do_crypto == 1;
 350
 351 }
 352
 353
 354 sub do_defs
 355 {
 356         my($name,$files,$symhacksfile)=@_;
 357         my $file;
 358         my @ret;
 359         my %syms;
 360         my %platform;           # For anything undefined, we assume ""
 361         my %kind;               # For anything undefined, we assume "FUNCTION"
 362         my %algorithm;          # For anything undefined, we assume ""
 363         my %variant;
 364         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 365                                 # is the same name as the original.
 366         my $cpp;
 367         my %unknown_algorithms = ();
 368
 369         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 370                 {
 371                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 372                 open(IN,"<$file") || die "unable to open $file:$!\n";
 373                 my $line = "", my $def= "";
 374                 my %tag = (
 375                         (map { $_ => 0 } @known_platforms),
 376                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 377                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 378                         NOPROTO         => 0,
 379                         PERL5           => 0,
 380                         _WINDLL         => 0,
 381                         CONST_STRICT    => 0,
 382                         TRUE            => 1,
 383                 );
 384                 my $symhacking = $file eq $symhacksfile;
 385                 my @current_platforms = ();
 386                 my @current_algorithms = ();
 387
 388                 # params: symbol, alias, platforms, kind
 389                 # The reason to put this subroutine in a variable is that
 390                 # it will otherwise create it's own, unshared, version of
 391                 # %tag and %variant...
 392                 my $make_variant = sub
 393                 {
 394                         my ($s, $a, $p, $k) = @_;
 395                         my ($a1, $a2);
 396
 397                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 398                         if (defined($p))
 399                         {
 400                                 $a1 = join(",",$p,
 401                                            grep(!/^$/,
 402                                                 map { $tag{$_} == 1 ? $_ : "" }
 403                                                 @known_platforms));
 404                         }
 405                         else
 406                         {
 407                                 $a1 = join(",",
 408                                            grep(!/^$/,
 409                                                 map { $tag{$_} == 1 ? $_ : "" }
 410                                                 @known_platforms));
 411                         }
 412                         $a2 = join(",",
 413                                    grep(!/^$/,
 414                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 415                                         @known_ossl_platforms));
 416                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 417                         if ($a1 eq "") { $a1 = $a2; }
 418                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 419                         if ($a eq $s)
 420                         {
 421                                 if (!defined($variant_cnt{$s}))
 422                                 {
 423                                         $variant_cnt{$s} = 0;
 424                                 }
 425                                 $variant_cnt{$s}++;
 426                                 $a .= "{$variant_cnt{$s}}";
 427                         }
 428                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 429                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 430                         if (!grep(/^$togrep$/,
 431                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 432                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 433                                 $variant{$s} .= $toadd;
 434                         }
 435                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 436                 };
 437
 438                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 439                 while(<IN>) {
 440                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 441                                 {
 442                                 undef @tag;
 443                                 last;
 444                                 }
 445                         if ($line ne '') {
 446                                 $_ = $line . $_;
 447                                 $line = '';
 448                         }
 449
 450                         if (/\\$/) {
 451                                 chomp; # remove eol
 452                                 chop; # remove ending backslash
 453                                 $line = $_;
 454                                 next;
 455                         }
 456
 457                         if(/\/\*/) {
 458                                 if (not /\*\//) {       # multiline comment...
 459                                         $line = $_;     # ... just accumulate
 460                                         next;
 461                                 } else {
 462                                         s/\/\*.*?\*\///gs;# wipe it
 463                                 }
 464                         }
 465
 466                         if ($cpp) {
 467                                 $cpp++ if /^#\s*if/;
 468                                 $cpp-- if /^#\s*endif/;
 469                                 next;
 470                         }
 471                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 472
 473                         s/{[^{}]*}//gs;                      # ignore {} blocks
 474                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 475                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 476                         if (/^\#\s*ifndef\s+(.*)/) {
 477                                 push(@tag,"-");
 478                                 push(@tag,$1);
 479                                 $tag{$1}=-1;
 480                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 481                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 482                                 push(@tag,"-");
 483                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 484                                         my $tmp_1 = $1;
 485                                         my $tmp_;
 486                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 487                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 488                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 489                                                 push(@tag,$1);
 490                                                 $tag{$1}=-1;
 491                                         }
 492                                 } else {
 493                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 494                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 495                                         push(@tag,$1);
 496                                         $tag{$1}=-1;
 497                                 }
 498                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 499                                 push(@tag,"-");
 500                                 push(@tag,$1);
 501                                 $tag{$1}=1;
 502                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 503                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 504                                 push(@tag,"-");
 505                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 506                                         my $tmp_1 = $1;
 507                                         my $tmp_;
 508                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 509                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 510                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 511                                                 push(@tag,$1);
 512                                                 $tag{$1}=1;
 513                                         }
 514                                 } else {
 515                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 516                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 517                                         push(@tag,$1);
 518                                         $tag{$1}=1;
 519                                 }
 520                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 521                                 my $tag_i = $#tag;
 522                                 while($tag[$tag_i] ne "-") {
 523                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 524                                                 $tag{$tag[$tag_i]}=2;
 525                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 526                                         }
 527                                         $tag_i--;
 528                                 }
 529                         } elsif (/^\#\s*endif/) {
 530                                 my $tag_i = $#tag;
 531                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 532                                         my $t=$tag[$tag_i];
 533                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 534                                         if ($tag{$t}==2) {
 535                                                 $tag{$t}=-1;
 536                                         } else {
 537                                                 $tag{$t}=0;
 538                                         }
 539                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 540                                         pop(@tag);
 541                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 542                                                 $t=$1;
 543                                         } else {
 544                                                 $t="";
 545                                         }
 546                                         if ($t ne ""
 547                                             && !grep(/^$t$/, @known_algorithms)) {
 548                                                 $unknown_algorithms{$t} = 1;
 549                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 550                                         }
 551                                         $tag_i--;
 552                                 }
 553                                 pop(@tag);
 554                         } elsif (/^\#\s*else/) {
 555                                 my $tag_i = $#tag;
 556                                 while($tag[$tag_i] ne "-") {
 557                                         my $t=$tag[$tag_i];
 558                                         $tag{$t}= -$tag{$t};
 559                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 560                                         $tag_i--;
 561                                 }
 562                         } elsif (/^\#\s*if\s+1/) {
 563                                 push(@tag,"-");
 564                                 # Dummy tag
 565                                 push(@tag,"TRUE");
 566                                 $tag{"TRUE"}=1;
 567                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 568                         } elsif (/^\#\s*if\s+0/) {
 569                                 push(@tag,"-");
 570                                 # Dummy tag
 571                                 push(@tag,"TRUE");
 572                                 $tag{"TRUE"}=-1;
 573                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 574                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 575                                  && $symhacking && $tag{'TRUE'} != -1) {
 576                                 # This is for aliasing.  When we find an alias,
 577                                 # we have to invert
 578                                 &$make_variant($1,$2);
 579                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 580                         }
 581                         if (/^\#/) {
 582                                 @current_platforms =
 583                                     grep(!/^$/,
 584                                          map { $tag{$_} == 1 ? $_ :
 585                                                    $tag{$_} == -1 ? "!".$_  : "" }
 586                                          @known_platforms);
 587                                 push @current_platforms
 588                                     , grep(!/^$/,
 589                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 590                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 591                                            @known_ossl_platforms);
 592                                 @current_algorithms =
 593                                     grep(!/^$/,
 594                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 595                                          @known_algorithms);
 596                                 $def .=
 597                                     "#INFO:"
 598                                         .join(',',@current_platforms).":"
 599                                             .join(',',@current_algorithms).";";
 600                                 next;
 601                         }
 602                         if ($tag{'TRUE'} != -1) {
 603                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 604                                         next;
 605                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 606                                         $def .= "int d2i_$3(void);";
 607                                         $def .= "int i2d_$3(void);";
 608                                         # Variant for platforms that do not
 609                                         # have to access globale variables
 610                                         # in shared libraries through functions
 611                                         $def .=
 612                                             "#INFO:"
 613                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 614                                                     .join(',',@current_algorithms).";";
 615                                         $def .= "OPENSSL_EXTERN int $2_it;";
 616                                         $def .=
 617                                             "#INFO:"
 618                                                 .join(',',@current_platforms).":"
 619                                                     .join(',',@current_algorithms).";";
 620                                         # Variant for platforms that have to
 621                                         # access globale variables in shared
 622                                         # libraries through functions
 623                                         &$make_variant("$2_it","$2_it",
 624                                                       "EXPORT_VAR_AS_FUNCTION",
 625                                                       "FUNCTION");
 626                                         next;
 627                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 628                                         $def .= "int d2i_$3(void);";
 629                                         $def .= "int i2d_$3(void);";
 630                                         $def .= "int $3_free(void);";
 631                                         $def .= "int $3_new(void);";
 632                                         # Variant for platforms that do not
 633                                         # have to access globale variables
 634                                         # in shared libraries through functions
 635                                         $def .=
 636                                             "#INFO:"
 637                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 638                                                     .join(',',@current_algorithms).";";
 639                                         $def .= "OPENSSL_EXTERN int $2_it;";
 640                                         $def .=
 641                                             "#INFO:"
 642                                                 .join(',',@current_platforms).":"
 643                                                     .join(',',@current_algorithms).";";
 644                                         # Variant for platforms that have to
 645                                         # access globale variables in shared
 646                                         # libraries through functions
 647                                         &$make_variant("$2_it","$2_it",
 648                                                       "EXPORT_VAR_AS_FUNCTION",
 649                                                       "FUNCTION");
 650                                         next;
 651                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 652                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 653                                         $def .= "int d2i_$1(void);";
 654                                         $def .= "int i2d_$1(void);";
 655                                         $def .= "int $1_free(void);";
 656                                         $def .= "int $1_new(void);";
 657                                         # Variant for platforms that do not
 658                                         # have to access globale variables
 659                                         # in shared libraries through functions
 660                                         $def .=
 661                                             "#INFO:"
 662                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 663                                                     .join(',',@current_algorithms).";";
 664                                         $def .= "OPENSSL_EXTERN int $1_it;";
 665                                         $def .=
 666                                             "#INFO:"
 667                                                 .join(',',@current_platforms).":"
 668                                                     .join(',',@current_algorithms).";";
 669                                         # Variant for platforms that have to
 670                                         # access globale variables in shared
 671                                         # libraries through functions
 672                                         &$make_variant("$1_it","$1_it",
 673                                                       "EXPORT_VAR_AS_FUNCTION",
 674                                                       "FUNCTION");
 675                                         next;
 676                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 677                                         $def .= "int d2i_$2(void);";
 678                                         $def .= "int i2d_$2(void);";
 679                                         # Variant for platforms that do not
 680                                         # have to access globale variables
 681                                         # in shared libraries through functions
 682                                         $def .=
 683                                             "#INFO:"
 684                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 685                                                     .join(',',@current_algorithms).";";
 686                                         $def .= "OPENSSL_EXTERN int $2_it;";
 687                                         $def .=
 688                                             "#INFO:"
 689                                                 .join(',',@current_platforms).":"
 690                                                     .join(',',@current_algorithms).";";
 691                                         # Variant for platforms that have to
 692                                         # access globale variables in shared
 693                                         # libraries through functions
 694                                         &$make_variant("$2_it","$2_it",
 695                                                       "EXPORT_VAR_AS_FUNCTION",
 696                                                       "FUNCTION");
 697                                         next;
 698                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 699                                         $def .= "int $1_free(void);";
 700                                         $def .= "int $1_new(void);";
 701                                         next;
 702                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 703                                         $def .= "int d2i_$2(void);";
 704                                         $def .= "int i2d_$2(void);";
 705                                         $def .= "int $2_free(void);";
 706                                         $def .= "int $2_new(void);";
 707                                         # Variant for platforms that do not
 708                                         # have to access globale variables
 709                                         # in shared libraries through functions
 710                                         $def .=
 711                                             "#INFO:"
 712                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 713                                                     .join(',',@current_algorithms).";";
 714                                         $def .= "OPENSSL_EXTERN int $2_it;";
 715                                         $def .=
 716                                             "#INFO:"
 717                                                 .join(',',@current_platforms).":"
 718                                                     .join(',',@current_algorithms).";";
 719                                         # Variant for platforms that have to
 720                                         # access globale variables in shared
 721                                         # libraries through functions
 722                                         &$make_variant("$2_it","$2_it",
 723                                                       "EXPORT_VAR_AS_FUNCTION",
 724                                                       "FUNCTION");
 725                                         next;
 726                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 727                                         # Variant for platforms that do not
 728                                         # have to access globale variables
 729                                         # in shared libraries through functions
 730                                         $def .=
 731                                             "#INFO:"
 732                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 733                                                     .join(',',@current_algorithms).";";
 734                                         $def .= "OPENSSL_EXTERN int $1_it;";
 735                                         $def .=
 736                                             "#INFO:"
 737                                                 .join(',',@current_platforms).":"
 738                                                     .join(',',@current_algorithms).";";
 739                                         # Variant for platforms that have to
 740                                         # access globale variables in shared
 741                                         # libraries through functions
 742                                         &$make_variant("$1_it","$1_it",
 743                                                       "EXPORT_VAR_AS_FUNCTION",
 744                                                       "FUNCTION");
 745                                         next;
 746                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 747                                         $def .= "int i2d_$1_NDEF(void);";
 748                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 749                                         next;
 750                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 751                                         $def .= "int $1_print_ctx(void);";
 752                                         next;
 753                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 754                                         $def .= "int $2_print_ctx(void);";
 755                                         next;
 756                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 757                                         next;
 758                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 759                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 760                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 761                                         # Things not in Win16
 762                                         $def .=
 763                                             "#INFO:"
 764                                                 .join(',',"!WIN16",@current_platforms).":"
 765                                                     .join(',',@current_algorithms).";";
 766                                         $def .= "int PEM_read_$1(void);";
 767                                         $def .= "int PEM_write_$1(void);";
 768                                         $def .=
 769                                             "#INFO:"
 770                                                 .join(',',@current_platforms).":"
 771                                                     .join(',',@current_algorithms).";";
 772                                         # Things that are everywhere
 773                                         $def .= "int PEM_read_bio_$1(void);";
 774                                         $def .= "int PEM_write_bio_$1(void);";
 775                                         next;
 776                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 777                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 778                                         # Things not in Win16
 779                                         $def .=
 780                                             "#INFO:"
 781                                                 .join(',',"!WIN16",@current_platforms).":"
 782                                                     .join(',',@current_algorithms).";";
 783                                         $def .= "int PEM_write_$1(void);";
 784                                         $def .=
 785                                             "#INFO:"
 786                                                 .join(',',@current_platforms).":"
 787                                                     .join(',',@current_algorithms).";";
 788                                         # Things that are everywhere
 789                                         $def .= "int PEM_write_bio_$1(void);";
 790                                         next;
 791                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 792                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 793                                         # Things not in Win16
 794                                         $def .=
 795                                             "#INFO:"
 796                                                 .join(',',"!WIN16",@current_platforms).":"
 797                                                     .join(',',@current_algorithms).";";
 798                                         $def .= "int PEM_read_$1(void);";
 799                                         $def .=
 800                                             "#INFO:"
 801                                                 .join(',',@current_platforms).":"
 802                                                     .join(',',@current_algorithms).";";
 803                                         # Things that are everywhere
 804                                         $def .= "int PEM_read_bio_$1(void);";
 805                                         next;
 806                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 807                                         # Variant for platforms that do not
 808                                         # have to access globale variables
 809                                         # in shared libraries through functions
 810                                         $def .=
 811                                             "#INFO:"
 812                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 813                                                     .join(',',@current_algorithms).";";
 814                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 815                                         $def .=
 816                                             "#INFO:"
 817                                                 .join(',',@current_platforms).":"
 818                                                     .join(',',@current_algorithms).";";
 819                                         # Variant for platforms that have to
 820                                         # access globale variables in shared
 821                                         # libraries through functions
 822                                         &$make_variant("_shadow_$2","_shadow_$2",
 823                                                       "EXPORT_VAR_AS_FUNCTION",
 824                                                       "FUNCTION");
 825                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 826                                         if (/\{|\/\*|\([^\)]*$/) {
 827                                                 $line = $_;
 828                                         } else {
 829                                                 $def .= $_;
 830                                         }
 831                                 }
 832                         }
 833                 }
 834                 close(IN);
 835
 836                 my $algs;
 837                 my $plays;
 838
 839                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 840                 foreach (split /;/, $def) {
 841                         my $s; my $k = "FUNCTION"; my $p; my $a;
 842                         s/^[\n\s]*//g;
 843                         s/[\n\s]*$//g;
 844                         next if(/\#undef/);
 845                         next if(/typedef\W/);
 846                         next if(/\#define/);
 847
 848                         # Reduce argument lists to empty ()
 849                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 850                         while(/\(.*\)/s) {
 851                                 s/\([^\(\)]+\)/\{\}/gs;
 852                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 853                         }
 854                         # pretend as we didn't use curly braces: {} -> ()
 855                         s/\{\}/\(\)/gs;
 856
 857                         s/STACK_OF\(\)/void/gs;
 858
 859                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 860                         if (/^\#INFO:([^:]*):(.*)$/) {
 861                                 $plats = $1;
 862                                 $algs = $2;
 863                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 864                                 next;
 865                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 866                                 $s = $1;
 867                                 $k = "VARIABLE";
 868                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 869                         } elsif (/TYPEDEF_\w+_OF/s) {
 870                                 next;
 871                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 872                                 $s = $1;                # a function name!
 873                                 print STDERR "DEBUG: found function $s\n" if $debug;
 874                         } elsif (/\(/ and not (/=/)) {
 875                                 print STDERR "File $file: cannot parse: $_;\n";
 876                                 next;
 877                         } else {
 878                                 next;
 879                         }
 880
 881                         $syms{$s} = 1;
 882                         $kind{$s} = $k;
 883
 884                         $p = $plats;
 885                         $a = $algs;
 886                         $a .= ",BF" if($s =~ /EVP_bf/);
 887                         $a .= ",CAST" if($s =~ /EVP_cast/);
 888                         $a .= ",DES" if($s =~ /EVP_des/);
 889                         $a .= ",DSA" if($s =~ /EVP_dss/);
 890                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 891                         $a .= ",MD2" if($s =~ /EVP_md2/);
 892                         $a .= ",MD4" if($s =~ /EVP_md4/);
 893                         $a .= ",MD5" if($s =~ /EVP_md5/);
 894                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 895                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 896                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 897                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 898                         $a .= ",SHA" if($s =~ /EVP_sha/);
 899                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 900                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 901                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 902                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 903
 904                         $platform{$s} =
 905                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 906                         $algorithm{$s} .= ','.$a;
 907
 908                         if (defined($variant{$s})) {
 909                                 foreach $v (split /;/,$variant{$s}) {
 910                                         (my $r, my $p, my $k) = split(/:/,$v);
 911                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 912                                         $syms{$r} = 1;
 913                                         if (!defined($k)) { $k = $kind{$s}; }
 914                                         $kind{$r} = $k."(".$s.")";
 915                                         $algorithm{$r} = $algorithm{$s};
 916                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 917                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 918                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 919                                 }
 920                         }
 921                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 922                 }
 923         }
 924
 925         # Prune the returned symbols
 926
 927         delete $syms{"bn_dump1"};
 928         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 929
 930         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 931         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 932         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 933         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 934
 935         # Info we know about
 936
 937         push @ret, map { $_."\\".&info_string($_,"EXIST",
 938                                               $platform{$_},
 939                                               $kind{$_},
 940                                               $algorithm{$_}) } keys %syms;
 941
 942         if (keys %unknown_algorithms) {
 943                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 944                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 945         }
 946         return(@ret);
 947 }
 948
 949 # Param: string of comma-separated platform-specs.
 950 sub reduce_platforms
 951 {
 952         my ($platforms) = @_;
 953         my $pl = defined($platforms) ? $platforms : "";
 954         my %p = map { $_ => 0 } split /,/, $pl;
 955         my $ret;
 956
 957         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 958             if $debug;
 959         # We do this, because if there's code like the following, it really
 960         # means the function exists in all cases and should therefore be
 961         # everywhere.  By increasing and decreasing, we may attain 0:
 962         #
 963         # ifndef WIN16
 964         #    int foo();
 965         # else
 966         #    int _fat foo();
 967         # endif
 968         foreach $platform (split /,/, $pl) {
 969                 if ($platform =~ /^!(.*)$/) {
 970                         $p{$1}--;
 971                 } else {
 972                         $p{$platform}++;
 973                 }
 974         }
 975         foreach $platform (keys %p) {
 976                 if ($p{$platform} == 0) { delete $p{$platform}; }
 977         }
 978
 979         delete $p{""};
 980
 981         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 982         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 983             if $debug;
 984         return $ret;
 985 }
 986
 987 sub info_string {
 988         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 989
 990         my %a = defined($algorithms) ?
 991             map { $_ => 1 } split /,/, $algorithms : ();
 992         my $k = defined($kind) ? $kind : "FUNCTION";
 993         my $ret;
 994         my $p = &reduce_platforms($platforms);
 995
 996         delete $a{""};
 997
 998         $ret = $exist;
 999         $ret .= ":".$p;
1000         $ret .= ":".$k;
1001         $ret .= ":".join(',',sort keys %a);
1002         return $ret;
1003 }
1004
1005 sub maybe_add_info {
1006         (my $name, *nums, my @symbols) = @_;
1007         my $sym;
1008         my $new_info = 0;
1009         my %syms=();
1010
1011         print STDERR "Updating $name info\n";
1012         foreach $sym (@symbols) {
1013                 (my $s, my $i) = split /\\/, $sym;
1014                 if (defined($nums{$s})) {
1015                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1016                         (my $n, my $dummy) = split /\\/, $nums{$s};
1017                         if (!defined($dummy) || $i ne $dummy) {
1018                                 $nums{$s} = $n."\\".$i;
1019                                 $new_info++;
1020                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1021                         }
1022                 }
1023                 $syms{$s} = 1;
1024         }
1025
1026         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1027         foreach $sym (@s) {
1028                 (my $n, my $i) = split /\\/, $nums{$sym};
1029                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1030                         $new_info++;
1031                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1032                 }
1033         }
1034         if ($new_info) {
1035                 print STDERR "$new_info old symbols got an info update\n";
1036                 if (!$do_rewrite) {
1037                         print STDERR "You should do a rewrite to fix this.\n";
1038                 }
1039         } else {
1040                 print STDERR "No old symbols needed info update\n";
1041         }
1042 }
1043
1044 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1045 sub is_valid
1046 {
1047         my ($keywords_txt,$platforms) = @_;
1048         my (@keywords) = split /,/,$keywords_txt;
1049         my ($falsesum, $truesum) = (0, 1);
1050
1051         # Param: one keyword
1052         sub recognise
1053         {
1054                 my ($keyword,$platforms) = @_;
1055
1056                 if ($platforms) {
1057                         # platforms
1058                         if ($keyword eq "VMS" && $VMS) { return 1; }
1059                         if ($keyword eq "WIN32" && $W32) { return 1; }
1060                         if ($keyword eq "WIN16" && $W16) { return 1; }
1061                         if ($keyword eq "WINNT" && $NT) { return 1; }
1062                         if ($keyword eq "OS2" && $OS2) { return 1; }
1063                         # Special platforms:
1064                         # EXPORT_VAR_AS_FUNCTION means that global variables
1065                         # will be represented as functions.  This currently
1066                         # only happens on VMS-VAX.
1067                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1068                                 return 1;
1069                         }
1070                         return 0;
1071                 } else {
1072                         # algorithms
1073                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1074                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1075                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1076                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1077                         if ($keyword eq "DES" && $no_des) { return 0; }
1078                         if ($keyword eq "BF" && $no_bf) { return 0; }
1079                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1080                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1081                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1082                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1083                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1084                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1085                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1086                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1087                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1088                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1089                         if ($keyword eq "DH" && $no_dh) { return 0; }
1090                         if ($keyword eq "EC" && $no_ec) { return 0; }
1091                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1092                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1093                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1094                         if ($keyword eq "AES" && $no_aes) { return 0; }
1095                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1096                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1097                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1098                         if ($keyword eq "ERR" && $no_err) { return 0; }
1099                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1100                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1101                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1102                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1103                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1104                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1105                         if ($keyword eq "HW" && $no_hw) { return 0; }
1106                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1107                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1108                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1109                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1110
1111                         # Nothing recognise as true
1112                         return 1;
1113                 }
1114         }
1115
1116         foreach $k (@keywords) {
1117                 if ($k =~ /^!(.*)$/) {
1118                         $falsesum += &recognise($1,$platforms);
1119                 } else {
1120                         $truesum *= &recognise($k,$platforms);
1121                 }
1122         }
1123         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1124         return (!$falsesum) && $truesum;
1125 }
1126
1127 sub print_test_file
1128 {
1129         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1130         my $n = 1; my @e; my @r;
1131         my $sym; my $prev = ""; my $prefSSLeay;
1132
1133         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1134         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1135         @symbols=((sort @e),(sort @r));
1136
1137         foreach $sym (@symbols) {
1138                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1139                 my $v = 0;
1140                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1141                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1142                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1143                 if (!defined($nums{$s})) {
1144                         print STDERR "Warning: $s does not have a number assigned\n"
1145                             if(!$do_update);
1146                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1147                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1148                         if ($prev eq $s2) {
1149                                 print OUT "\t/* The following has already appeared previously */\n";
1150                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1151                         }
1152                         $prev = $s2;    # To warn about duplicates...
1153
1154                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1155                         if ($v) {
1156                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1157                         } else {
1158                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1159                         }
1160                 }
1161         }
1162 }
1163
1164 sub get_version {
1165    local *MF;
1166    my $v = '?';
1167    open MF, 'Makefile' or return $v;
1168    while (<MF>) {
1169      $v = $1, last if /^VERSION=(.*?)\s*$/;
1170    }
1171    close MF;
1172    return $v;
1173 }
1174
1175 sub print_def_file
1176 {
1177         (*OUT,my $name,*nums,my @symbols)=@_;
1178         my $n = 1; my @e; my @r; my @v; my $prev="";
1179         my $liboptions="";
1180         my $libname = $name;
1181         my $http_vendor = 'www.openssl.org/';
1182         my $version = get_version();
1183         my $what = "OpenSSL: implementation of Secure Socket Layer";
1184         my $description = "$what $version, $name - http://$http_vendor";
1185
1186         if ($W32)
1187                 { $libname.="32"; }
1188         elsif ($W16)
1189                 { $libname.="16"; }
1190         elsif ($OS2)
1191                 { # DLL names should not clash on the whole system.
1192                   # However, they should not have any particular relationship
1193                   # to the name of the static library.  Chose descriptive names
1194                   # (must be at most 8 chars).
1195                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1196                   $libname = $translate{$name} || $name;
1197                   $liboptions = <<EOO;
1198 INITINSTANCE
1199 DATA MULTIPLE NONSHARED
1200 EOO
1201                   # Vendor field can't contain colon, drat; so we omit http://
1202                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1203                 }
1204
1205         print OUT <<"EOF";
1206 ;
1207 ; Definition file for the DLL version of the $name library from OpenSSL
1208 ;
1209
1210 LIBRARY         $libname        $liboptions
1211
1212 DESCRIPTION     '$description'
1213
1214 EOF
1215
1216         if ($W16) {
1217                 print <<"EOF";
1218 CODE            PRELOAD MOVEABLE
1219 DATA            PRELOAD MOVEABLE SINGLE
1220
1221 EXETYPE         WINDOWS
1222
1223 HEAPSIZE        4096
1224 STACKSIZE       8192
1225
1226 EOF
1227         }
1228
1229         print "EXPORTS\n";
1230
1231         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1232         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1233         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1234         @symbols=((sort @e),(sort @r), (sort @v));
1235
1236
1237         foreach $sym (@symbols) {
1238                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1239                 my $v = 0;
1240                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1241                 if (!defined($nums{$s})) {
1242                         printf STDERR "Warning: $s does not have a number assigned\n"
1243                             if(!$do_update);
1244                 } else {
1245                         (my $n, my $dummy) = split /\\/, $nums{$s};
1246                         my %pf = ();
1247                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1248                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1249                         if (is_valid($p,1) && is_valid($a,0)) {
1250                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1251                                 if ($prev eq $s2) {
1252                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1253                                 }
1254                                 $prev = $s2;    # To warn about duplicates...
1255                                 if($v && !$OS2) {
1256                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1257                                 } else {
1258                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1259                                 }
1260                         }
1261                 }
1262         }
1263         printf OUT "\n";
1264 }
1265
1266 sub load_numbers
1267 {
1268         my($name)=@_;
1269         my(@a,%ret);
1270
1271         $max_num = 0;
1272         $num_noinfo = 0;
1273         $prev = "";
1274         $prev_cnt = 0;
1275
1276         open(IN,"<$name") || die "unable to open $name:$!\n";
1277         while (<IN>) {
1278                 chop;
1279                 s/#.*$//;
1280                 next if /^\s*$/;
1281                 @a=split;
1282                 if (defined $ret{$a[0]}) {
1283                         # This is actually perfectly OK
1284                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1285                 }
1286                 if ($max_num > $a[1]) {
1287                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1288                 }
1289                 elsif ($max_num == $a[1]) {
1290                         # This is actually perfectly OK
1291                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1292                         if ($a[0] eq $prev) {
1293                                 $prev_cnt++;
1294                                 $a[0] .= "{$prev_cnt}";
1295                         }
1296                 }
1297                 else {
1298                         $prev_cnt = 0;
1299                 }
1300                 if ($#a < 2) {
1301                         # Existence will be proven later, in do_defs
1302                         $ret{$a[0]}=$a[1];
1303                         $num_noinfo++;
1304                 } else {
1305                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1306                 }
1307                 $max_num = $a[1] if $a[1] > $max_num;
1308                 $prev=$a[0];
1309         }
1310         if ($num_noinfo) {
1311                 print STDERR "Warning: $num_noinfo symbols were without info.";
1312                 if ($do_rewrite) {
1313                         printf STDERR "  The rewrite will fix this.\n";
1314                 } else {
1315                         printf STDERR "  You should do a rewrite to fix this.\n";
1316                 }
1317         }
1318         close(IN);
1319         return(%ret);
1320 }
1321
1322 sub parse_number
1323 {
1324         (my $str, my $what) = @_;
1325         (my $n, my $i) = split(/\\/,$str);
1326         if ($what eq "n") {
1327                 return $n;
1328         } else {
1329                 return $i;
1330         }
1331 }
1332
1333 sub rewrite_numbers
1334 {
1335         (*OUT,$name,*nums,@symbols)=@_;
1336         my $thing;
1337
1338         print STDERR "Rewriting $name\n";
1339
1340         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1341         my $r; my %r; my %rsyms;
1342         foreach $r (@r) {
1343                 (my $s, my $i) = split /\\/, $r;
1344                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1345                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1346                 $r{$a} = $s."\\".$i;
1347                 $rsyms{$s} = 1;
1348         }
1349
1350         my %syms = ();
1351         foreach $_ (@symbols) {
1352                 (my $n, my $i) = split /\\/;
1353                 $syms{$n} = 1;
1354         }
1355
1356         my @s=sort {
1357             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1358             || $a cmp $b
1359         } keys %nums;
1360         foreach $sym (@s) {
1361                 (my $n, my $i) = split /\\/, $nums{$sym};
1362                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1363                 next if defined($rsyms{$sym});
1364                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1365                 $i="NOEXIST::FUNCTION:"
1366                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1367                 my $s2 = $sym;
1368                 $s2 =~ s/\{[0-9]+\}$//;
1369                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1370                 if (exists $r{$sym}) {
1371                         (my $s, $i) = split /\\/,$r{$sym};
1372                         my $s2 = $s;
1373                         $s2 =~ s/\{[0-9]+\}$//;
1374                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1375                 }
1376         }
1377 }
1378
1379 sub update_numbers
1380 {
1381         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1382         my $new_syms = 0;
1383
1384         print STDERR "Updating $name numbers\n";
1385
1386         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1387         my $r; my %r; my %rsyms;
1388         foreach $r (@r) {
1389                 (my $s, my $i) = split /\\/, $r;
1390                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1391                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1392                 $r{$a} = $s."\\".$i;
1393                 $rsyms{$s} = 1;
1394         }
1395
1396         foreach $sym (@symbols) {
1397                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1398                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1399                 next if defined($rsyms{$sym});
1400                 die "ERROR: Symbol $sym had no info attached to it."
1401                     if $i eq "";
1402                 if (!exists $nums{$s}) {
1403                         $new_syms++;
1404                         my $s2 = $s;
1405                         $s2 =~ s/\{[0-9]+\}$//;
1406                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1407                         if (exists $r{$s}) {
1408                                 ($s, $i) = split /\\/,$r{$s};
1409                                 $s =~ s/\{[0-9]+\}$//;
1410                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1411                         }
1412                 }
1413         }
1414         if($new_syms) {
1415                 print STDERR "$new_syms New symbols added\n";
1416         } else {
1417                 print STDERR "No New symbols Added\n";
1418         }
1419 }
1420
1421 sub check_existing
1422 {
1423         (*nums, my @symbols)=@_;
1424         my %existing; my @remaining;
1425         @remaining=();
1426         foreach $sym (@symbols) {
1427                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1428                 $existing{$s}=1;
1429         }
1430         foreach $sym (keys %nums) {
1431                 if (!exists $existing{$sym}) {
1432                         push @remaining, $sym;
1433                 }
1434         }
1435         if(@remaining) {
1436                 print STDERR "The following symbols do not seem to exist:\n";
1437                 foreach $sym (@remaining) {
1438                         print STDERR "\t",$sym,"\n";
1439                 }
1440         }
1441 }
1442