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