crypto/openssl-0.9.7d/util/mkdef.pl

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