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