crypto/openssl/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", "HMAC", "AES", "CAMELLIA",
  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", "DGRAM",
  95                          # Engines
  96                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  97                          # RFC3779 support
  98                          "RFC3779",
  99                          # Deprecated functions
 100                          "DEPRECATED" );
 101
 102 my $options="";
 103 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 104 while(<IN>) {
 105     $options=$1 if (/^OPTIONS=(.*)$/);
 106 }
 107 close(IN);
 108
 109 # The following ciphers may be excluded (by Configure). This means functions
 110 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 111 # in directory xxx is ignored.
 112 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 113 my $no_cast;
 114 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 115 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 116 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw; my $no_camellia;
 117 my $no_fp_api; my $no_static_engine; my $no_gmp; my $no_deprecated;
 118 my $no_rfc3779;
 119
 120
 121 foreach (@ARGV, split(/ /, $options))
 122         {
 123         $debug=1 if $_ eq "debug";
 124         $W32=1 if $_ eq "32";
 125         $W16=1 if $_ eq "16";
 126         if($_ eq "NT") {
 127                 $W32 = 1;
 128                 $NT = 1;
 129         }
 130         if ($_ eq "VMS-VAX") {
 131                 $VMS=1;
 132                 $VMSVAX=1;
 133         }
 134         if ($_ eq "VMS-Alpha") {
 135                 $VMS=1;
 136                 $VMSAlpha=1;
 137         }
 138         $VMS=1 if $_ eq "VMS";
 139         $OS2=1 if $_ eq "OS2";
 140
 141         $do_ssl=1 if $_ eq "ssleay";
 142         if ($_ eq "ssl") {
 143                 $do_ssl=1;
 144                 $libname=$_
 145         }
 146         $do_crypto=1 if $_ eq "libeay";
 147         if ($_ eq "crypto") {
 148                 $do_crypto=1;
 149                 $libname=$_;
 150         }
 151         $no_static_engine=1 if $_ eq "no-static-engine";
 152         $no_static_engine=0 if $_ eq "enable-static-engine";
 153         $do_update=1 if $_ eq "update";
 154         $do_rewrite=1 if $_ eq "rewrite";
 155         $do_ctest=1 if $_ eq "ctest";
 156         $do_ctestall=1 if $_ eq "ctestall";
 157         $do_checkexist=1 if $_ eq "exist";
 158         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 159
 160         if    (/^no-rc2$/)      { $no_rc2=1; }
 161         elsif (/^no-rc4$/)      { $no_rc4=1; }
 162         elsif (/^no-rc5$/)      { $no_rc5=1; }
 163         elsif (/^no-idea$/)     { $no_idea=1; }
 164         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 165         elsif (/^no-bf$/)       { $no_bf=1; }
 166         elsif (/^no-cast$/)     { $no_cast=1; }
 167         elsif (/^no-md2$/)      { $no_md2=1; }
 168         elsif (/^no-md4$/)      { $no_md4=1; }
 169         elsif (/^no-md5$/)      { $no_md5=1; }
 170         elsif (/^no-sha$/)      { $no_sha=1; }
 171         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 172         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 173         elsif (/^no-rsa$/)      { $no_rsa=1; }
 174         elsif (/^no-dsa$/)      { $no_dsa=1; }
 175         elsif (/^no-dh$/)       { $no_dh=1; }
 176         elsif (/^no-ec$/)       { $no_ec=1; }
 177         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 178         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 179         elsif (/^no-hmac$/)     { $no_hmac=1; }
 180         elsif (/^no-aes$/)      { $no_aes=1; }
 181         elsif (/^no-camellia$/) { $no_camellia=1; }
 182         elsif (/^no-evp$/)      { $no_evp=1; }
 183         elsif (/^no-lhash$/)    { $no_lhash=1; }
 184         elsif (/^no-stack$/)    { $no_stack=1; }
 185         elsif (/^no-err$/)      { $no_err=1; }
 186         elsif (/^no-buffer$/)   { $no_buffer=1; }
 187         elsif (/^no-bio$/)      { $no_bio=1; }
 188         #elsif (/^no-locking$/) { $no_locking=1; }
 189         elsif (/^no-comp$/)     { $no_comp=1; }
 190         elsif (/^no-dso$/)      { $no_dso=1; }
 191         elsif (/^no-krb5$/)     { $no_krb5=1; }
 192         elsif (/^no-engine$/)   { $no_engine=1; }
 193         elsif (/^no-hw$/)       { $no_hw=1; }
 194         elsif (/^no-gmp$/)      { $no_gmp=1; }
 195         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 196         }
 197
 198
 199 if (!$libname) {
 200         if ($do_ssl) {
 201                 $libname="SSLEAY";
 202         }
 203         if ($do_crypto) {
 204                 $libname="LIBEAY";
 205         }
 206 }
 207
 208 # If no platform is given, assume WIN32
 209 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 210         $W32 = 1;
 211 }
 212
 213 # Add extra knowledge
 214 if ($W16) {
 215         $no_fp_api=1;
 216 }
 217
 218 if (!$do_ssl && !$do_crypto)
 219         {
 220         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 221         exit(1);
 222         }
 223
 224 %ssl_list=&load_numbers($ssl_num);
 225 $max_ssl = $max_num;
 226 %crypto_list=&load_numbers($crypto_num);
 227 $max_crypto = $max_num;
 228
 229 my $ssl="ssl/ssl.h";
 230 $ssl.=" ssl/kssl.h";
 231
 232 my $crypto ="crypto/crypto.h";
 233 $crypto.=" crypto/o_dir.h";
 234 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 235 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 236 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 237 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 238 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 239 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 240 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 241 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 242 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 243 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 244 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 245 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 246 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 247 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 248 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 249
 250 $crypto.=" crypto/bn/bn.h";
 251 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 252 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 253 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 254 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 255 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 256 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 257 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 258
 259 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 260 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 261 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 262 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 263 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 264 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 265 $crypto.=" crypto/conf/conf.h";
 266 $crypto.=" crypto/txt_db/txt_db.h";
 267
 268 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 269 $crypto.=" crypto/objects/objects.h";
 270 $crypto.=" crypto/pem/pem.h";
 271 #$crypto.=" crypto/meth/meth.h";
 272 $crypto.=" crypto/asn1/asn1.h";
 273 $crypto.=" crypto/asn1/asn1t.h";
 274 $crypto.=" crypto/asn1/asn1_mac.h";
 275 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 276 $crypto.=" crypto/pkcs7/pkcs7.h";
 277 $crypto.=" crypto/pkcs12/pkcs12.h";
 278 $crypto.=" crypto/x509/x509.h";
 279 $crypto.=" crypto/x509/x509_vfy.h";
 280 $crypto.=" crypto/x509v3/x509v3.h";
 281 $crypto.=" crypto/rand/rand.h";
 282 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 283 $crypto.=" crypto/ocsp/ocsp.h";
 284 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 285 $crypto.=" crypto/krb5/krb5_asn.h";
 286 $crypto.=" crypto/tmdiff.h";
 287 $crypto.=" crypto/store/store.h";
 288 $crypto.=" crypto/pqueue/pqueue.h";
 289
 290 my $symhacks="crypto/symhacks.h";
 291
 292 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 293 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 294
 295 if ($do_update) {
 296
 297 if ($do_ssl == 1) {
 298
 299         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 300         if ($do_rewrite == 1) {
 301                 open(OUT, ">$ssl_num");
 302                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 303         } else {
 304                 open(OUT, ">>$ssl_num");
 305         }
 306         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 307         close OUT;
 308 }
 309
 310 if($do_crypto == 1) {
 311
 312         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 313         if ($do_rewrite == 1) {
 314                 open(OUT, ">$crypto_num");
 315                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 316         } else {
 317                 open(OUT, ">>$crypto_num");
 318         }
 319         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 320         close OUT;
 321 }
 322
 323 } elsif ($do_checkexist) {
 324         &check_existing(*ssl_list, @ssl_symbols)
 325                 if $do_ssl == 1;
 326         &check_existing(*crypto_list, @crypto_symbols)
 327                 if $do_crypto == 1;
 328 } elsif ($do_ctest || $do_ctestall) {
 329
 330         print <<"EOF";
 331
 332 /* Test file to check all DEF file symbols are present by trying
 333  * to link to all of them. This is *not* intended to be run!
 334  */
 335
 336 int main()
 337 {
 338 EOF
 339         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 340                 if $do_ssl == 1;
 341
 342         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 343                 if $do_crypto == 1;
 344
 345         print "}\n";
 346
 347 } else {
 348
 349         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 350                 if $do_ssl == 1;
 351
 352         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 353                 if $do_crypto == 1;
 354
 355 }
 356
 357
 358 sub do_defs
 359 {
 360         my($name,$files,$symhacksfile)=@_;
 361         my $file;
 362         my @ret;
 363         my %syms;
 364         my %platform;           # For anything undefined, we assume ""
 365         my %kind;               # For anything undefined, we assume "FUNCTION"
 366         my %algorithm;          # For anything undefined, we assume ""
 367         my %variant;
 368         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 369                                 # is the same name as the original.
 370         my $cpp;
 371         my %unknown_algorithms = ();
 372
 373         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 374                 {
 375                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 376                 open(IN,"<$file") || die "unable to open $file:$!\n";
 377                 my $line = "", my $def= "";
 378                 my %tag = (
 379                         (map { $_ => 0 } @known_platforms),
 380                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 381                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 382                         NOPROTO         => 0,
 383                         PERL5           => 0,
 384                         _WINDLL         => 0,
 385                         CONST_STRICT    => 0,
 386                         TRUE            => 1,
 387                 );
 388                 my $symhacking = $file eq $symhacksfile;
 389                 my @current_platforms = ();
 390                 my @current_algorithms = ();
 391
 392                 # params: symbol, alias, platforms, kind
 393                 # The reason to put this subroutine in a variable is that
 394                 # it will otherwise create it's own, unshared, version of
 395                 # %tag and %variant...
 396                 my $make_variant = sub
 397                 {
 398                         my ($s, $a, $p, $k) = @_;
 399                         my ($a1, $a2);
 400
 401                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 402                         if (defined($p))
 403                         {
 404                                 $a1 = join(",",$p,
 405                                            grep(!/^$/,
 406                                                 map { $tag{$_} == 1 ? $_ : "" }
 407                                                 @known_platforms));
 408                         }
 409                         else
 410                         {
 411                                 $a1 = join(",",
 412                                            grep(!/^$/,
 413                                                 map { $tag{$_} == 1 ? $_ : "" }
 414                                                 @known_platforms));
 415                         }
 416                         $a2 = join(",",
 417                                    grep(!/^$/,
 418                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 419                                         @known_ossl_platforms));
 420                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 421                         if ($a1 eq "") { $a1 = $a2; }
 422                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 423                         if ($a eq $s)
 424                         {
 425                                 if (!defined($variant_cnt{$s}))
 426                                 {
 427                                         $variant_cnt{$s} = 0;
 428                                 }
 429                                 $variant_cnt{$s}++;
 430                                 $a .= "{$variant_cnt{$s}}";
 431                         }
 432                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 433                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 434                         if (!grep(/^$togrep$/,
 435                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 436                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 437                                 $variant{$s} .= $toadd;
 438                         }
 439                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 440                 };
 441
 442                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 443                 while(<IN>) {
 444                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 445                                 {
 446                                 undef @tag;
 447                                 last;
 448                                 }
 449                         if ($line ne '') {
 450                                 $_ = $line . $_;
 451                                 $line = '';
 452                         }
 453
 454                         if (/\\$/) {
 455                                 chomp; # remove eol
 456                                 chop; # remove ending backslash
 457                                 $line = $_;
 458                                 next;
 459                         }
 460
 461                         if(/\/\*/) {
 462                                 if (not /\*\//) {       # multiline comment...
 463                                         $line = $_;     # ... just accumulate
 464                                         next;
 465                                 } else {
 466                                         s/\/\*.*?\*\///gs;# wipe it
 467                                 }
 468                         }
 469
 470                         if ($cpp) {
 471                                 $cpp++ if /^#\s*if/;
 472                                 $cpp-- if /^#\s*endif/;
 473                                 next;
 474                         }
 475                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 476
 477                         s/{[^{}]*}//gs;                      # ignore {} blocks
 478                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 479                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 480                         if (/^\#\s*ifndef\s+(.*)/) {
 481                                 push(@tag,"-");
 482                                 push(@tag,$1);
 483                                 $tag{$1}=-1;
 484                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 485                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 486                                 push(@tag,"-");
 487                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 488                                         my $tmp_1 = $1;
 489                                         my $tmp_;
 490                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 491                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 492                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 493                                                 push(@tag,$1);
 494                                                 $tag{$1}=-1;
 495                                         }
 496                                 } else {
 497                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 498                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 499                                         push(@tag,$1);
 500                                         $tag{$1}=-1;
 501                                 }
 502                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 503                                 push(@tag,"-");
 504                                 push(@tag,$1);
 505                                 $tag{$1}=1;
 506                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 507                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 508                                 push(@tag,"-");
 509                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 510                                         my $tmp_1 = $1;
 511                                         my $tmp_;
 512                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 513                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 514                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 515                                                 push(@tag,$1);
 516                                                 $tag{$1}=1;
 517                                         }
 518                                 } else {
 519                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 520                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 521                                         push(@tag,$1);
 522                                         $tag{$1}=1;
 523                                 }
 524                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 525                                 my $tag_i = $#tag;
 526                                 while($tag[$tag_i] ne "-") {
 527                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 528                                                 $tag{$tag[$tag_i]}=2;
 529                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 530                                         }
 531                                         $tag_i--;
 532                                 }
 533                         } elsif (/^\#\s*endif/) {
 534                                 my $tag_i = $#tag;
 535                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 536                                         my $t=$tag[$tag_i];
 537                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 538                                         if ($tag{$t}==2) {
 539                                                 $tag{$t}=-1;
 540                                         } else {
 541                                                 $tag{$t}=0;
 542                                         }
 543                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 544                                         pop(@tag);
 545                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 546                                                 $t=$1;
 547                                         } else {
 548                                                 $t="";
 549                                         }
 550                                         if ($t ne ""
 551                                             && !grep(/^$t$/, @known_algorithms)) {
 552                                                 $unknown_algorithms{$t} = 1;
 553                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 554                                         }
 555                                         $tag_i--;
 556                                 }
 557                                 pop(@tag);
 558                         } elsif (/^\#\s*else/) {
 559                                 my $tag_i = $#tag;
 560                                 while($tag[$tag_i] ne "-") {
 561                                         my $t=$tag[$tag_i];
 562                                         $tag{$t}= -$tag{$t};
 563                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 564                                         $tag_i--;
 565                                 }
 566                         } elsif (/^\#\s*if\s+1/) {
 567                                 push(@tag,"-");
 568                                 # Dummy tag
 569                                 push(@tag,"TRUE");
 570                                 $tag{"TRUE"}=1;
 571                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 572                         } elsif (/^\#\s*if\s+0/) {
 573                                 push(@tag,"-");
 574                                 # Dummy tag
 575                                 push(@tag,"TRUE");
 576                                 $tag{"TRUE"}=-1;
 577                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 578                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 579                                  && $symhacking && $tag{'TRUE'} != -1) {
 580                                 # This is for aliasing.  When we find an alias,
 581                                 # we have to invert
 582                                 &$make_variant($1,$2);
 583                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 584                         }
 585                         if (/^\#/) {
 586                                 @current_platforms =
 587                                     grep(!/^$/,
 588                                          map { $tag{$_} == 1 ? $_ :
 589                                                    $tag{$_} == -1 ? "!".$_  : "" }
 590                                          @known_platforms);
 591                                 push @current_platforms
 592                                     , grep(!/^$/,
 593                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 594                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 595                                            @known_ossl_platforms);
 596                                 @current_algorithms =
 597                                     grep(!/^$/,
 598                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 599                                          @known_algorithms);
 600                                 $def .=
 601                                     "#INFO:"
 602                                         .join(',',@current_platforms).":"
 603                                             .join(',',@current_algorithms).";";
 604                                 next;
 605                         }
 606                         if ($tag{'TRUE'} != -1) {
 607                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 608                                         next;
 609                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 610                                         $def .= "int d2i_$3(void);";
 611                                         $def .= "int i2d_$3(void);";
 612                                         # Variant for platforms that do not
 613                                         # have to access globale variables
 614                                         # in shared libraries through functions
 615                                         $def .=
 616                                             "#INFO:"
 617                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 618                                                     .join(',',@current_algorithms).";";
 619                                         $def .= "OPENSSL_EXTERN int $2_it;";
 620                                         $def .=
 621                                             "#INFO:"
 622                                                 .join(',',@current_platforms).":"
 623                                                     .join(',',@current_algorithms).";";
 624                                         # Variant for platforms that have to
 625                                         # access globale variables in shared
 626                                         # libraries through functions
 627                                         &$make_variant("$2_it","$2_it",
 628                                                       "EXPORT_VAR_AS_FUNCTION",
 629                                                       "FUNCTION");
 630                                         next;
 631                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 632                                         $def .= "int d2i_$3(void);";
 633                                         $def .= "int i2d_$3(void);";
 634                                         $def .= "int $3_free(void);";
 635                                         $def .= "int $3_new(void);";
 636                                         # Variant for platforms that do not
 637                                         # have to access globale variables
 638                                         # in shared libraries through functions
 639                                         $def .=
 640                                             "#INFO:"
 641                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 642                                                     .join(',',@current_algorithms).";";
 643                                         $def .= "OPENSSL_EXTERN int $2_it;";
 644                                         $def .=
 645                                             "#INFO:"
 646                                                 .join(',',@current_platforms).":"
 647                                                     .join(',',@current_algorithms).";";
 648                                         # Variant for platforms that have to
 649                                         # access globale variables in shared
 650                                         # libraries through functions
 651                                         &$make_variant("$2_it","$2_it",
 652                                                       "EXPORT_VAR_AS_FUNCTION",
 653                                                       "FUNCTION");
 654                                         next;
 655                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 656                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 657                                         $def .= "int d2i_$1(void);";
 658                                         $def .= "int i2d_$1(void);";
 659                                         $def .= "int $1_free(void);";
 660                                         $def .= "int $1_new(void);";
 661                                         # Variant for platforms that do not
 662                                         # have to access globale variables
 663                                         # in shared libraries through functions
 664                                         $def .=
 665                                             "#INFO:"
 666                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 667                                                     .join(',',@current_algorithms).";";
 668                                         $def .= "OPENSSL_EXTERN int $1_it;";
 669                                         $def .=
 670                                             "#INFO:"
 671                                                 .join(',',@current_platforms).":"
 672                                                     .join(',',@current_algorithms).";";
 673                                         # Variant for platforms that have to
 674                                         # access globale variables in shared
 675                                         # libraries through functions
 676                                         &$make_variant("$1_it","$1_it",
 677                                                       "EXPORT_VAR_AS_FUNCTION",
 678                                                       "FUNCTION");
 679                                         next;
 680                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 681                                         $def .= "int d2i_$2(void);";
 682                                         $def .= "int i2d_$2(void);";
 683                                         # Variant for platforms that do not
 684                                         # have to access globale variables
 685                                         # in shared libraries through functions
 686                                         $def .=
 687                                             "#INFO:"
 688                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 689                                                     .join(',',@current_algorithms).";";
 690                                         $def .= "OPENSSL_EXTERN int $2_it;";
 691                                         $def .=
 692                                             "#INFO:"
 693                                                 .join(',',@current_platforms).":"
 694                                                     .join(',',@current_algorithms).";";
 695                                         # Variant for platforms that have to
 696                                         # access globale variables in shared
 697                                         # libraries through functions
 698                                         &$make_variant("$2_it","$2_it",
 699                                                       "EXPORT_VAR_AS_FUNCTION",
 700                                                       "FUNCTION");
 701                                         next;
 702                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 703                                         $def .= "int $1_free(void);";
 704                                         $def .= "int $1_new(void);";
 705                                         next;
 706                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 707                                         $def .= "int d2i_$2(void);";
 708                                         $def .= "int i2d_$2(void);";
 709                                         $def .= "int $2_free(void);";
 710                                         $def .= "int $2_new(void);";
 711                                         # Variant for platforms that do not
 712                                         # have to access globale variables
 713                                         # in shared libraries through functions
 714                                         $def .=
 715                                             "#INFO:"
 716                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 717                                                     .join(',',@current_algorithms).";";
 718                                         $def .= "OPENSSL_EXTERN int $2_it;";
 719                                         $def .=
 720                                             "#INFO:"
 721                                                 .join(',',@current_platforms).":"
 722                                                     .join(',',@current_algorithms).";";
 723                                         # Variant for platforms that have to
 724                                         # access globale variables in shared
 725                                         # libraries through functions
 726                                         &$make_variant("$2_it","$2_it",
 727                                                       "EXPORT_VAR_AS_FUNCTION",
 728                                                       "FUNCTION");
 729                                         next;
 730                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 731                                         # Variant for platforms that do not
 732                                         # have to access globale variables
 733                                         # in shared libraries through functions
 734                                         $def .=
 735                                             "#INFO:"
 736                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 737                                                     .join(',',@current_algorithms).";";
 738                                         $def .= "OPENSSL_EXTERN int $1_it;";
 739                                         $def .=
 740                                             "#INFO:"
 741                                                 .join(',',@current_platforms).":"
 742                                                     .join(',',@current_algorithms).";";
 743                                         # Variant for platforms that have to
 744                                         # access globale variables in shared
 745                                         # libraries through functions
 746                                         &$make_variant("$1_it","$1_it",
 747                                                       "EXPORT_VAR_AS_FUNCTION",
 748                                                       "FUNCTION");
 749                                         next;
 750                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 751                                         $def .= "int i2d_$1_NDEF(void);";
 752                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 753                                         next;
 754                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 755                                         $def .= "int $1_print_ctx(void);";
 756                                         next;
 757                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 758                                         $def .= "int $2_print_ctx(void);";
 759                                         next;
 760                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 761                                         next;
 762                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 763                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 764                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 765                                         # Things not in Win16
 766                                         $def .=
 767                                             "#INFO:"
 768                                                 .join(',',"!WIN16",@current_platforms).":"
 769                                                     .join(',',@current_algorithms).";";
 770                                         $def .= "int PEM_read_$1(void);";
 771                                         $def .= "int PEM_write_$1(void);";
 772                                         $def .=
 773                                             "#INFO:"
 774                                                 .join(',',@current_platforms).":"
 775                                                     .join(',',@current_algorithms).";";
 776                                         # Things that are everywhere
 777                                         $def .= "int PEM_read_bio_$1(void);";
 778                                         $def .= "int PEM_write_bio_$1(void);";
 779                                         next;
 780                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 781                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 782                                         # Things not in Win16
 783                                         $def .=
 784                                             "#INFO:"
 785                                                 .join(',',"!WIN16",@current_platforms).":"
 786                                                     .join(',',@current_algorithms).";";
 787                                         $def .= "int PEM_write_$1(void);";
 788                                         $def .=
 789                                             "#INFO:"
 790                                                 .join(',',@current_platforms).":"
 791                                                     .join(',',@current_algorithms).";";
 792                                         # Things that are everywhere
 793                                         $def .= "int PEM_write_bio_$1(void);";
 794                                         next;
 795                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 796                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 797                                         # Things not in Win16
 798                                         $def .=
 799                                             "#INFO:"
 800                                                 .join(',',"!WIN16",@current_platforms).":"
 801                                                     .join(',',@current_algorithms).";";
 802                                         $def .= "int PEM_read_$1(void);";
 803                                         $def .=
 804                                             "#INFO:"
 805                                                 .join(',',@current_platforms).":"
 806                                                     .join(',',@current_algorithms).";";
 807                                         # Things that are everywhere
 808                                         $def .= "int PEM_read_bio_$1(void);";
 809                                         next;
 810                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 811                                         # Variant for platforms that do not
 812                                         # have to access globale variables
 813                                         # in shared libraries through functions
 814                                         $def .=
 815                                             "#INFO:"
 816                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 817                                                     .join(',',@current_algorithms).";";
 818                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 819                                         $def .=
 820                                             "#INFO:"
 821                                                 .join(',',@current_platforms).":"
 822                                                     .join(',',@current_algorithms).";";
 823                                         # Variant for platforms that have to
 824                                         # access globale variables in shared
 825                                         # libraries through functions
 826                                         &$make_variant("_shadow_$2","_shadow_$2",
 827                                                       "EXPORT_VAR_AS_FUNCTION",
 828                                                       "FUNCTION");
 829                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 830                                         if (/\{|\/\*|\([^\)]*$/) {
 831                                                 $line = $_;
 832                                         } else {
 833                                                 $def .= $_;
 834                                         }
 835                                 }
 836                         }
 837                 }
 838                 close(IN);
 839
 840                 my $algs;
 841                 my $plays;
 842
 843                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 844                 foreach (split /;/, $def) {
 845                         my $s; my $k = "FUNCTION"; my $p; my $a;
 846                         s/^[\n\s]*//g;
 847                         s/[\n\s]*$//g;
 848                         next if(/\#undef/);
 849                         next if(/typedef\W/);
 850                         next if(/\#define/);
 851
 852                         # Reduce argument lists to empty ()
 853                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 854                         while(/\(.*\)/s) {
 855                                 s/\([^\(\)]+\)/\{\}/gs;
 856                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 857                         }
 858                         # pretend as we didn't use curly braces: {} -> ()
 859                         s/\{\}/\(\)/gs;
 860
 861                         s/STACK_OF\(\)/void/gs;
 862
 863                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 864                         if (/^\#INFO:([^:]*):(.*)$/) {
 865                                 $plats = $1;
 866                                 $algs = $2;
 867                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 868                                 next;
 869                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 870                                 $s = $1;
 871                                 $k = "VARIABLE";
 872                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 873                         } elsif (/TYPEDEF_\w+_OF/s) {
 874                                 next;
 875                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 876                                 $s = $1;                # a function name!
 877                                 print STDERR "DEBUG: found function $s\n" if $debug;
 878                         } elsif (/\(/ and not (/=/)) {
 879                                 print STDERR "File $file: cannot parse: $_;\n";
 880                                 next;
 881                         } else {
 882                                 next;
 883                         }
 884
 885                         $syms{$s} = 1;
 886                         $kind{$s} = $k;
 887
 888                         $p = $plats;
 889                         $a = $algs;
 890                         $a .= ",BF" if($s =~ /EVP_bf/);
 891                         $a .= ",CAST" if($s =~ /EVP_cast/);
 892                         $a .= ",DES" if($s =~ /EVP_des/);
 893                         $a .= ",DSA" if($s =~ /EVP_dss/);
 894                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 895                         $a .= ",MD2" if($s =~ /EVP_md2/);
 896                         $a .= ",MD4" if($s =~ /EVP_md4/);
 897                         $a .= ",MD5" if($s =~ /EVP_md5/);
 898                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 899                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 900                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 901                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 902                         $a .= ",SHA" if($s =~ /EVP_sha/);
 903                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 904                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 905                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 906                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 907
 908                         $platform{$s} =
 909                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 910                         $algorithm{$s} .= ','.$a;
 911
 912                         if (defined($variant{$s})) {
 913                                 foreach $v (split /;/,$variant{$s}) {
 914                                         (my $r, my $p, my $k) = split(/:/,$v);
 915                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 916                                         $syms{$r} = 1;
 917                                         if (!defined($k)) { $k = $kind{$s}; }
 918                                         $kind{$r} = $k."(".$s.")";
 919                                         $algorithm{$r} = $algorithm{$s};
 920                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 921                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 922                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 923                                 }
 924                         }
 925                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 926                 }
 927         }
 928
 929         # Prune the returned symbols
 930
 931         delete $syms{"bn_dump1"};
 932         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 933
 934         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 935         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 936         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 937         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 938
 939         # Info we know about
 940
 941         push @ret, map { $_."\\".&info_string($_,"EXIST",
 942                                               $platform{$_},
 943                                               $kind{$_},
 944                                               $algorithm{$_}) } keys %syms;
 945
 946         if (keys %unknown_algorithms) {
 947                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 948                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 949         }
 950         return(@ret);
 951 }
 952
 953 # Param: string of comma-separated platform-specs.
 954 sub reduce_platforms
 955 {
 956         my ($platforms) = @_;
 957         my $pl = defined($platforms) ? $platforms : "";
 958         my %p = map { $_ => 0 } split /,/, $pl;
 959         my $ret;
 960
 961         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 962             if $debug;
 963         # We do this, because if there's code like the following, it really
 964         # means the function exists in all cases and should therefore be
 965         # everywhere.  By increasing and decreasing, we may attain 0:
 966         #
 967         # ifndef WIN16
 968         #    int foo();
 969         # else
 970         #    int _fat foo();
 971         # endif
 972         foreach $platform (split /,/, $pl) {
 973                 if ($platform =~ /^!(.*)$/) {
 974                         $p{$1}--;
 975                 } else {
 976                         $p{$platform}++;
 977                 }
 978         }
 979         foreach $platform (keys %p) {
 980                 if ($p{$platform} == 0) { delete $p{$platform}; }
 981         }
 982
 983         delete $p{""};
 984
 985         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 986         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 987             if $debug;
 988         return $ret;
 989 }
 990
 991 sub info_string {
 992         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 993
 994         my %a = defined($algorithms) ?
 995             map { $_ => 1 } split /,/, $algorithms : ();
 996         my $k = defined($kind) ? $kind : "FUNCTION";
 997         my $ret;
 998         my $p = &reduce_platforms($platforms);
 999
1000         delete $a{""};
1001
1002         $ret = $exist;
1003         $ret .= ":".$p;
1004         $ret .= ":".$k;
1005         $ret .= ":".join(',',sort keys %a);
1006         return $ret;
1007 }
1008
1009 sub maybe_add_info {
1010         (my $name, *nums, my @symbols) = @_;
1011         my $sym;
1012         my $new_info = 0;
1013         my %syms=();
1014
1015         print STDERR "Updating $name info\n";
1016         foreach $sym (@symbols) {
1017                 (my $s, my $i) = split /\\/, $sym;
1018                 if (defined($nums{$s})) {
1019                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1020                         (my $n, my $dummy) = split /\\/, $nums{$s};
1021                         if (!defined($dummy) || $i ne $dummy) {
1022                                 $nums{$s} = $n."\\".$i;
1023                                 $new_info++;
1024                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1025                         }
1026                 }
1027                 $syms{$s} = 1;
1028         }
1029
1030         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1031         foreach $sym (@s) {
1032                 (my $n, my $i) = split /\\/, $nums{$sym};
1033                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1034                         $new_info++;
1035                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1036                 }
1037         }
1038         if ($new_info) {
1039                 print STDERR "$new_info old symbols got an info update\n";
1040                 if (!$do_rewrite) {
1041                         print STDERR "You should do a rewrite to fix this.\n";
1042                 }
1043         } else {
1044                 print STDERR "No old symbols needed info update\n";
1045         }
1046 }
1047
1048 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1049 sub is_valid
1050 {
1051         my ($keywords_txt,$platforms) = @_;
1052         my (@keywords) = split /,/,$keywords_txt;
1053         my ($falsesum, $truesum) = (0, 1);
1054
1055         # Param: one keyword
1056         sub recognise
1057         {
1058                 my ($keyword,$platforms) = @_;
1059
1060                 if ($platforms) {
1061                         # platforms
1062                         if ($keyword eq "VMS" && $VMS) { return 1; }
1063                         if ($keyword eq "WIN32" && $W32) { return 1; }
1064                         if ($keyword eq "WIN16" && $W16) { return 1; }
1065                         if ($keyword eq "WINNT" && $NT) { return 1; }
1066                         if ($keyword eq "OS2" && $OS2) { return 1; }
1067                         # Special platforms:
1068                         # EXPORT_VAR_AS_FUNCTION means that global variables
1069                         # will be represented as functions.  This currently
1070                         # only happens on VMS-VAX.
1071                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1072                                 return 1;
1073                         }
1074                         return 0;
1075                 } else {
1076                         # algorithms
1077                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1078                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1079                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1080                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1081                         if ($keyword eq "DES" && $no_des) { return 0; }
1082                         if ($keyword eq "BF" && $no_bf) { return 0; }
1083                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1084                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1085                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1086                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1087                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1088                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1089                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1090                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1091                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1092                         if ($keyword eq "DH" && $no_dh) { return 0; }
1093                         if ($keyword eq "EC" && $no_ec) { return 0; }
1094                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1095                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1096                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1097                         if ($keyword eq "AES" && $no_aes) { return 0; }
1098                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1099                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1100                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1101                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1102                         if ($keyword eq "ERR" && $no_err) { return 0; }
1103                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1104                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1105                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1106                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1107                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1108                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1109                         if ($keyword eq "HW" && $no_hw) { return 0; }
1110                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1111                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1112                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1113                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1114                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1115
1116                         # Nothing recognise as true
1117                         return 1;
1118                 }
1119         }
1120
1121         foreach $k (@keywords) {
1122                 if ($k =~ /^!(.*)$/) {
1123                         $falsesum += &recognise($1,$platforms);
1124                 } else {
1125                         $truesum *= &recognise($k,$platforms);
1126                 }
1127         }
1128         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1129         return (!$falsesum) && $truesum;
1130 }
1131
1132 sub print_test_file
1133 {
1134         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1135         my $n = 1; my @e; my @r;
1136         my $sym; my $prev = ""; my $prefSSLeay;
1137
1138         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1139         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1140         @symbols=((sort @e),(sort @r));
1141
1142         foreach $sym (@symbols) {
1143                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1144                 my $v = 0;
1145                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1146                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1147                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1148                 if (!defined($nums{$s})) {
1149                         print STDERR "Warning: $s does not have a number assigned\n"
1150                             if(!$do_update);
1151                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1152                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1153                         if ($prev eq $s2) {
1154                                 print OUT "\t/* The following has already appeared previously */\n";
1155                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1156                         }
1157                         $prev = $s2;    # To warn about duplicates...
1158
1159                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1160                         if ($v) {
1161                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1162                         } else {
1163                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1164                         }
1165                 }
1166         }
1167 }
1168
1169 sub get_version {
1170    local *MF;
1171    my $v = '?';
1172    open MF, 'Makefile' or return $v;
1173    while (<MF>) {
1174      $v = $1, last if /^VERSION=(.*?)\s*$/;
1175    }
1176    close MF;
1177    return $v;
1178 }
1179
1180 sub print_def_file
1181 {
1182         (*OUT,my $name,*nums,my @symbols)=@_;
1183         my $n = 1; my @e; my @r; my @v; my $prev="";
1184         my $liboptions="";
1185         my $libname = $name;
1186         my $http_vendor = 'www.openssl.org/';
1187         my $version = get_version();
1188         my $what = "OpenSSL: implementation of Secure Socket Layer";
1189         my $description = "$what $version, $name - http://$http_vendor";
1190
1191         if ($W32)
1192                 { $libname.="32"; }
1193         elsif ($W16)
1194                 { $libname.="16"; }
1195         elsif ($OS2)
1196                 { # DLL names should not clash on the whole system.
1197                   # However, they should not have any particular relationship
1198                   # to the name of the static library.  Chose descriptive names
1199                   # (must be at most 8 chars).
1200                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1201                   $libname = $translate{$name} || $name;
1202                   $liboptions = <<EOO;
1203 INITINSTANCE
1204 DATA MULTIPLE NONSHARED
1205 EOO
1206                   # Vendor field can't contain colon, drat; so we omit http://
1207                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1208                 }
1209
1210         print OUT <<"EOF";
1211 ;
1212 ; Definition file for the DLL version of the $name library from OpenSSL
1213 ;
1214
1215 LIBRARY         $libname        $liboptions
1216
1217 DESCRIPTION     '$description'
1218
1219 EOF
1220
1221         if ($W16) {
1222                 print <<"EOF";
1223 CODE            PRELOAD MOVEABLE
1224 DATA            PRELOAD MOVEABLE SINGLE
1225
1226 EXETYPE         WINDOWS
1227
1228 HEAPSIZE        4096
1229 STACKSIZE       8192
1230
1231 EOF
1232         }
1233
1234         print "EXPORTS\n";
1235
1236         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1237         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1238         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1239         @symbols=((sort @e),(sort @r), (sort @v));
1240
1241
1242         foreach $sym (@symbols) {
1243                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1244                 my $v = 0;
1245                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1246                 if (!defined($nums{$s})) {
1247                         printf STDERR "Warning: $s does not have a number assigned\n"
1248                             if(!$do_update);
1249                 } else {
1250                         (my $n, my $dummy) = split /\\/, $nums{$s};
1251                         my %pf = ();
1252                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1253                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1254                         if (is_valid($p,1) && is_valid($a,0)) {
1255                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1256                                 if ($prev eq $s2) {
1257                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1258                                 }
1259                                 $prev = $s2;    # To warn about duplicates...
1260                                 if($v && !$OS2) {
1261                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1262                                 } else {
1263                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1264                                 }
1265                         }
1266                 }
1267         }
1268         printf OUT "\n";
1269 }
1270
1271 sub load_numbers
1272 {
1273         my($name)=@_;
1274         my(@a,%ret);
1275
1276         $max_num = 0;
1277         $num_noinfo = 0;
1278         $prev = "";
1279         $prev_cnt = 0;
1280
1281         open(IN,"<$name") || die "unable to open $name:$!\n";
1282         while (<IN>) {
1283                 chop;
1284                 s/#.*$//;
1285                 next if /^\s*$/;
1286                 @a=split;
1287                 if (defined $ret{$a[0]}) {
1288                         # This is actually perfectly OK
1289                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1290                 }
1291                 if ($max_num > $a[1]) {
1292                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1293                 }
1294                 elsif ($max_num == $a[1]) {
1295                         # This is actually perfectly OK
1296                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1297                         if ($a[0] eq $prev) {
1298                                 $prev_cnt++;
1299                                 $a[0] .= "{$prev_cnt}";
1300                         }
1301                 }
1302                 else {
1303                         $prev_cnt = 0;
1304                 }
1305                 if ($#a < 2) {
1306                         # Existence will be proven later, in do_defs
1307                         $ret{$a[0]}=$a[1];
1308                         $num_noinfo++;
1309                 } else {
1310                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1311                 }
1312                 $max_num = $a[1] if $a[1] > $max_num;
1313                 $prev=$a[0];
1314         }
1315         if ($num_noinfo) {
1316                 print STDERR "Warning: $num_noinfo symbols were without info.";
1317                 if ($do_rewrite) {
1318                         printf STDERR "  The rewrite will fix this.\n";
1319                 } else {
1320                         printf STDERR "  You should do a rewrite to fix this.\n";
1321                 }
1322         }
1323         close(IN);
1324         return(%ret);
1325 }
1326
1327 sub parse_number
1328 {
1329         (my $str, my $what) = @_;
1330         (my $n, my $i) = split(/\\/,$str);
1331         if ($what eq "n") {
1332                 return $n;
1333         } else {
1334                 return $i;
1335         }
1336 }
1337
1338 sub rewrite_numbers
1339 {
1340         (*OUT,$name,*nums,@symbols)=@_;
1341         my $thing;
1342
1343         print STDERR "Rewriting $name\n";
1344
1345         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1346         my $r; my %r; my %rsyms;
1347         foreach $r (@r) {
1348                 (my $s, my $i) = split /\\/, $r;
1349                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1350                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1351                 $r{$a} = $s."\\".$i;
1352                 $rsyms{$s} = 1;
1353         }
1354
1355         my %syms = ();
1356         foreach $_ (@symbols) {
1357                 (my $n, my $i) = split /\\/;
1358                 $syms{$n} = 1;
1359         }
1360
1361         my @s=sort {
1362             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1363             || $a cmp $b
1364         } keys %nums;
1365         foreach $sym (@s) {
1366                 (my $n, my $i) = split /\\/, $nums{$sym};
1367                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1368                 next if defined($rsyms{$sym});
1369                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1370                 $i="NOEXIST::FUNCTION:"
1371                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1372                 my $s2 = $sym;
1373                 $s2 =~ s/\{[0-9]+\}$//;
1374                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1375                 if (exists $r{$sym}) {
1376                         (my $s, $i) = split /\\/,$r{$sym};
1377                         my $s2 = $s;
1378                         $s2 =~ s/\{[0-9]+\}$//;
1379                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1380                 }
1381         }
1382 }
1383
1384 sub update_numbers
1385 {
1386         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1387         my $new_syms = 0;
1388
1389         print STDERR "Updating $name numbers\n";
1390
1391         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1392         my $r; my %r; my %rsyms;
1393         foreach $r (@r) {
1394                 (my $s, my $i) = split /\\/, $r;
1395                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1396                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1397                 $r{$a} = $s."\\".$i;
1398                 $rsyms{$s} = 1;
1399         }
1400
1401         foreach $sym (@symbols) {
1402                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1403                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1404                 next if defined($rsyms{$sym});
1405                 die "ERROR: Symbol $sym had no info attached to it."
1406                     if $i eq "";
1407                 if (!exists $nums{$s}) {
1408                         $new_syms++;
1409                         my $s2 = $s;
1410                         $s2 =~ s/\{[0-9]+\}$//;
1411                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1412                         if (exists $r{$s}) {
1413                                 ($s, $i) = split /\\/,$r{$s};
1414                                 $s =~ s/\{[0-9]+\}$//;
1415                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1416                         }
1417                 }
1418         }
1419         if($new_syms) {
1420                 print STDERR "$new_syms New symbols added\n";
1421         } else {
1422                 print STDERR "No New symbols Added\n";
1423         }
1424 }
1425
1426 sub check_existing
1427 {
1428         (*nums, my @symbols)=@_;
1429         my %existing; my @remaining;
1430         @remaining=();
1431         foreach $sym (@symbols) {
1432                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1433                 $existing{$s}=1;
1434         }
1435         foreach $sym (keys %nums) {
1436                 if (!exists $existing{$sym}) {
1437                         push @remaining, $sym;
1438                 }
1439         }
1440         if(@remaining) {
1441                 print STDERR "The following symbols do not seem to exist:\n";
1442                 foreach $sym (@remaining) {
1443                         print STDERR "\t",$sym,"\n";
1444                 }
1445         }
1446 }
1447