util/mkdef.pl

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