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", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA",
  88                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
  89                          # Envelope "algorithms"
  90                          "EVP", "X509", "ASN1_TYPEDEFS",
  91                          # Helper "algorithms"
  92                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  93                          "LOCKING",
  94                          # External "algorithms"
  95                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
  96                          # Engines
  97                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  98                          # RFC3779
  99                          "RFC3779",
 100                          # TLS
 101                          "TLSEXT", "PSK",
 102                          # Deprecated functions
 103                          "DEPRECATED" );
 104
 105 my $options="";
 106 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 107 while(<IN>) {
 108     $options=$1 if (/^OPTIONS=(.*)$/);
 109 }
 110 close(IN);
 111
 112 # The following ciphers may be excluded (by Configure). This means functions
 113 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 114 # in directory xxx is ignored.
 115 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 116 my $no_cast; my $no_whirlpool; my $no_camellia; my $no_seed;
 117 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 118 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 119 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
 120 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
 121 my $no_rfc3779; my $no_psk; my $no_tlsext;
 122
 123
 124 foreach (@ARGV, split(/ /, $options))
 125         {
 126         $debug=1 if $_ eq "debug";
 127         $W32=1 if $_ eq "32";
 128         $W16=1 if $_ eq "16";
 129         if($_ eq "NT") {
 130                 $W32 = 1;
 131                 $NT = 1;
 132         }
 133         if ($_ eq "VMS-VAX") {
 134                 $VMS=1;
 135                 $VMSVAX=1;
 136         }
 137         if ($_ eq "VMS-Alpha") {
 138                 $VMS=1;
 139                 $VMSAlpha=1;
 140         }
 141         $VMS=1 if $_ eq "VMS";
 142         $OS2=1 if $_ eq "OS2";
 143
 144         $do_ssl=1 if $_ eq "ssleay";
 145         if ($_ eq "ssl") {
 146                 $do_ssl=1;
 147                 $libname=$_
 148         }
 149         $do_crypto=1 if $_ eq "libeay";
 150         if ($_ eq "crypto") {
 151                 $do_crypto=1;
 152                 $libname=$_;
 153         }
 154         $no_static_engine=1 if $_ eq "no-static-engine";
 155         $no_static_engine=0 if $_ eq "enable-static-engine";
 156         $do_update=1 if $_ eq "update";
 157         $do_rewrite=1 if $_ eq "rewrite";
 158         $do_ctest=1 if $_ eq "ctest";
 159         $do_ctestall=1 if $_ eq "ctestall";
 160         $do_checkexist=1 if $_ eq "exist";
 161         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 162
 163         if    (/^no-rc2$/)      { $no_rc2=1; }
 164         elsif (/^no-rc4$/)      { $no_rc4=1; }
 165         elsif (/^no-rc5$/)      { $no_rc5=1; }
 166         elsif (/^no-idea$/)     { $no_idea=1; }
 167         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 168         elsif (/^no-bf$/)       { $no_bf=1; }
 169         elsif (/^no-cast$/)     { $no_cast=1; }
 170         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
 171         elsif (/^no-md2$/)      { $no_md2=1; }
 172         elsif (/^no-md4$/)      { $no_md4=1; }
 173         elsif (/^no-md5$/)      { $no_md5=1; }
 174         elsif (/^no-sha$/)      { $no_sha=1; }
 175         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 176         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 177         elsif (/^no-rsa$/)      { $no_rsa=1; }
 178         elsif (/^no-dsa$/)      { $no_dsa=1; }
 179         elsif (/^no-dh$/)       { $no_dh=1; }
 180         elsif (/^no-ec$/)       { $no_ec=1; }
 181         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 182         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 183         elsif (/^no-hmac$/)     { $no_hmac=1; }
 184         elsif (/^no-aes$/)      { $no_aes=1; }
 185         elsif (/^no-camellia$/) { $no_camellia=1; }
 186         elsif (/^no-seed$/)     { $no_seed=1; }
 187         elsif (/^no-evp$/)      { $no_evp=1; }
 188         elsif (/^no-lhash$/)    { $no_lhash=1; }
 189         elsif (/^no-stack$/)    { $no_stack=1; }
 190         elsif (/^no-err$/)      { $no_err=1; }
 191         elsif (/^no-buffer$/)   { $no_buffer=1; }
 192         elsif (/^no-bio$/)      { $no_bio=1; }
 193         #elsif (/^no-locking$/) { $no_locking=1; }
 194         elsif (/^no-comp$/)     { $no_comp=1; }
 195         elsif (/^no-dso$/)      { $no_dso=1; }
 196         elsif (/^no-krb5$/)     { $no_krb5=1; }
 197         elsif (/^no-engine$/)   { $no_engine=1; }
 198         elsif (/^no-hw$/)       { $no_hw=1; }
 199         elsif (/^no-gmp$/)      { $no_gmp=1; }
 200         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 201         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
 202         }
 203
 204
 205 if (!$libname) {
 206         if ($do_ssl) {
 207                 $libname="SSLEAY";
 208         }
 209         if ($do_crypto) {
 210                 $libname="LIBEAY";
 211         }
 212 }
 213
 214 # If no platform is given, assume WIN32
 215 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 216         $W32 = 1;
 217 }
 218
 219 # Add extra knowledge
 220 if ($W16) {
 221         $no_fp_api=1;
 222 }
 223
 224 if (!$do_ssl && !$do_crypto)
 225         {
 226         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 227         exit(1);
 228         }
 229
 230 %ssl_list=&load_numbers($ssl_num);
 231 $max_ssl = $max_num;
 232 %crypto_list=&load_numbers($crypto_num);
 233 $max_crypto = $max_num;
 234
 235 my $ssl="ssl/ssl.h";
 236 $ssl.=" ssl/kssl.h";
 237 $ssl.=" ssl/tls1.h";
 238
 239 my $crypto ="crypto/crypto.h";
 240 $crypto.=" crypto/o_dir.h";
 241 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 242 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 243 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 244 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 245 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 246 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 247 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 248 $crypto.=" crypto/whrlpool/whrlpool.h" ;
 249 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 250 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 251 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 252 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 253 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 254 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 255 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 256 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 257 $crypto.=" crypto/seed/seed.h"; # unless $no_seed;
 258
 259 $crypto.=" crypto/bn/bn.h";
 260 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 261 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 262 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 263 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 264 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 265 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 266 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 267
 268 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 269 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 270 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 271 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 272 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 273 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 274 $crypto.=" crypto/conf/conf.h";
 275 $crypto.=" crypto/txt_db/txt_db.h";
 276
 277 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 278 $crypto.=" crypto/objects/objects.h";
 279 $crypto.=" crypto/pem/pem.h";
 280 #$crypto.=" crypto/meth/meth.h";
 281 $crypto.=" crypto/asn1/asn1.h";
 282 $crypto.=" crypto/asn1/asn1t.h";
 283 $crypto.=" crypto/asn1/asn1_mac.h";
 284 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 285 $crypto.=" crypto/pkcs7/pkcs7.h";
 286 $crypto.=" crypto/pkcs12/pkcs12.h";
 287 $crypto.=" crypto/x509/x509.h";
 288 $crypto.=" crypto/x509/x509_vfy.h";
 289 $crypto.=" crypto/x509v3/x509v3.h";
 290 $crypto.=" crypto/ts/ts.h";
 291 $crypto.=" crypto/rand/rand.h";
 292 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 293 $crypto.=" crypto/ocsp/ocsp.h";
 294 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 295 $crypto.=" crypto/krb5/krb5_asn.h";
 296 $crypto.=" crypto/store/store.h";
 297 $crypto.=" crypto/pqueue/pqueue.h";
 298
 299 my $symhacks="crypto/symhacks.h";
 300
 301 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 302 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 303
 304 if ($do_update) {
 305
 306 if ($do_ssl == 1) {
 307
 308         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 309         if ($do_rewrite == 1) {
 310                 open(OUT, ">$ssl_num");
 311                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 312         } else {
 313                 open(OUT, ">>$ssl_num");
 314         }
 315         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 316         close OUT;
 317 }
 318
 319 if($do_crypto == 1) {
 320
 321         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 322         if ($do_rewrite == 1) {
 323                 open(OUT, ">$crypto_num");
 324                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 325         } else {
 326                 open(OUT, ">>$crypto_num");
 327         }
 328         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 329         close OUT;
 330 }
 331
 332 } elsif ($do_checkexist) {
 333         &check_existing(*ssl_list, @ssl_symbols)
 334                 if $do_ssl == 1;
 335         &check_existing(*crypto_list, @crypto_symbols)
 336                 if $do_crypto == 1;
 337 } elsif ($do_ctest || $do_ctestall) {
 338
 339         print <<"EOF";
 340
 341 /* Test file to check all DEF file symbols are present by trying
 342  * to link to all of them. This is *not* intended to be run!
 343  */
 344
 345 int main()
 346 {
 347 EOF
 348         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 349                 if $do_ssl == 1;
 350
 351         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 352                 if $do_crypto == 1;
 353
 354         print "}\n";
 355
 356 } else {
 357
 358         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 359                 if $do_ssl == 1;
 360
 361         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 362                 if $do_crypto == 1;
 363
 364 }
 365
 366
 367 sub do_defs
 368 {
 369         my($name,$files,$symhacksfile)=@_;
 370         my $file;
 371         my @ret;
 372         my %syms;
 373         my %platform;           # For anything undefined, we assume ""
 374         my %kind;               # For anything undefined, we assume "FUNCTION"
 375         my %algorithm;          # For anything undefined, we assume ""
 376         my %variant;
 377         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 378                                 # is the same name as the original.
 379         my $cpp;
 380         my %unknown_algorithms = ();
 381
 382         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 383                 {
 384                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 385                 open(IN,"<$file") || die "unable to open $file:$!\n";
 386                 my $line = "", my $def= "";
 387                 my %tag = (
 388                         (map { $_ => 0 } @known_platforms),
 389                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 390                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 391                         NOPROTO         => 0,
 392                         PERL5           => 0,
 393                         _WINDLL         => 0,
 394                         CONST_STRICT    => 0,
 395                         TRUE            => 1,
 396                 );
 397                 my $symhacking = $file eq $symhacksfile;
 398                 my @current_platforms = ();
 399                 my @current_algorithms = ();
 400
 401                 # params: symbol, alias, platforms, kind
 402                 # The reason to put this subroutine in a variable is that
 403                 # it will otherwise create it's own, unshared, version of
 404                 # %tag and %variant...
 405                 my $make_variant = sub
 406                 {
 407                         my ($s, $a, $p, $k) = @_;
 408                         my ($a1, $a2);
 409
 410                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 411                         if (defined($p))
 412                         {
 413                                 $a1 = join(",",$p,
 414                                            grep(!/^$/,
 415                                                 map { $tag{$_} == 1 ? $_ : "" }
 416                                                 @known_platforms));
 417                         }
 418                         else
 419                         {
 420                                 $a1 = join(",",
 421                                            grep(!/^$/,
 422                                                 map { $tag{$_} == 1 ? $_ : "" }
 423                                                 @known_platforms));
 424                         }
 425                         $a2 = join(",",
 426                                    grep(!/^$/,
 427                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 428                                         @known_ossl_platforms));
 429                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 430                         if ($a1 eq "") { $a1 = $a2; }
 431                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 432                         if ($a eq $s)
 433                         {
 434                                 if (!defined($variant_cnt{$s}))
 435                                 {
 436                                         $variant_cnt{$s} = 0;
 437                                 }
 438                                 $variant_cnt{$s}++;
 439                                 $a .= "{$variant_cnt{$s}}";
 440                         }
 441                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 442                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 443                         if (!grep(/^$togrep$/,
 444                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 445                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 446                                 $variant{$s} .= $toadd;
 447                         }
 448                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 449                 };
 450
 451                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 452                 while(<IN>) {
 453                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 454                                 {
 455                                 undef @tag;
 456                                 last;
 457                                 }
 458                         if ($line ne '') {
 459                                 $_ = $line . $_;
 460                                 $line = '';
 461                         }
 462
 463                         if (/\\$/) {
 464                                 chomp; # remove eol
 465                                 chop; # remove ending backslash
 466                                 $line = $_;
 467                                 next;
 468                         }
 469
 470                         if(/\/\*/) {
 471                                 if (not /\*\//) {       # multiline comment...
 472                                         $line = $_;     # ... just accumulate
 473                                         next;
 474                                 } else {
 475                                         s/\/\*.*?\*\///gs;# wipe it
 476                                 }
 477                         }
 478
 479                         if ($cpp) {
 480                                 $cpp++ if /^#\s*if/;
 481                                 $cpp-- if /^#\s*endif/;
 482                                 next;
 483                         }
 484                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 485
 486                         s/{[^{}]*}//gs;                      # ignore {} blocks
 487                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 488                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 489                         if (/^\#\s*ifndef\s+(.*)/) {
 490                                 push(@tag,"-");
 491                                 push(@tag,$1);
 492                                 $tag{$1}=-1;
 493                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 494                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 495                                 push(@tag,"-");
 496                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 497                                         my $tmp_1 = $1;
 498                                         my $tmp_;
 499                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 500                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 501                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 502                                                 push(@tag,$1);
 503                                                 $tag{$1}=-1;
 504                                         }
 505                                 } else {
 506                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 507                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 508                                         push(@tag,$1);
 509                                         $tag{$1}=-1;
 510                                 }
 511                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 512                                 push(@tag,"-");
 513                                 push(@tag,$1);
 514                                 $tag{$1}=1;
 515                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 516                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 517                                 push(@tag,"-");
 518                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 519                                         my $tmp_1 = $1;
 520                                         my $tmp_;
 521                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 522                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 523                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 524                                                 push(@tag,$1);
 525                                                 $tag{$1}=1;
 526                                         }
 527                                 } else {
 528                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 529                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 530                                         push(@tag,$1);
 531                                         $tag{$1}=1;
 532                                 }
 533                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 534                                 my $tag_i = $#tag;
 535                                 while($tag[$tag_i] ne "-") {
 536                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 537                                                 $tag{$tag[$tag_i]}=2;
 538                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 539                                         }
 540                                         $tag_i--;
 541                                 }
 542                         } elsif (/^\#\s*endif/) {
 543                                 my $tag_i = $#tag;
 544                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 545                                         my $t=$tag[$tag_i];
 546                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 547                                         if ($tag{$t}==2) {
 548                                                 $tag{$t}=-1;
 549                                         } else {
 550                                                 $tag{$t}=0;
 551                                         }
 552                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 553                                         pop(@tag);
 554                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 555                                                 $t=$1;
 556                                         } else {
 557                                                 $t="";
 558                                         }
 559                                         if ($t ne ""
 560                                             && !grep(/^$t$/, @known_algorithms)) {
 561                                                 $unknown_algorithms{$t} = 1;
 562                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 563                                         }
 564                                         $tag_i--;
 565                                 }
 566                                 pop(@tag);
 567                         } elsif (/^\#\s*else/) {
 568                                 my $tag_i = $#tag;
 569                                 while($tag[$tag_i] ne "-") {
 570                                         my $t=$tag[$tag_i];
 571                                         $tag{$t}= -$tag{$t};
 572                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 573                                         $tag_i--;
 574                                 }
 575                         } elsif (/^\#\s*if\s+1/) {
 576                                 push(@tag,"-");
 577                                 # Dummy tag
 578                                 push(@tag,"TRUE");
 579                                 $tag{"TRUE"}=1;
 580                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 581                         } elsif (/^\#\s*if\s+0/) {
 582                                 push(@tag,"-");
 583                                 # Dummy tag
 584                                 push(@tag,"TRUE");
 585                                 $tag{"TRUE"}=-1;
 586                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 587                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 588                                  && $symhacking && $tag{'TRUE'} != -1) {
 589                                 # This is for aliasing.  When we find an alias,
 590                                 # we have to invert
 591                                 &$make_variant($1,$2);
 592                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 593                         }
 594                         if (/^\#/) {
 595                                 @current_platforms =
 596                                     grep(!/^$/,
 597                                          map { $tag{$_} == 1 ? $_ :
 598                                                    $tag{$_} == -1 ? "!".$_  : "" }
 599                                          @known_platforms);
 600                                 push @current_platforms
 601                                     , grep(!/^$/,
 602                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 603                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 604                                            @known_ossl_platforms);
 605                                 @current_algorithms =
 606                                     grep(!/^$/,
 607                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 608                                          @known_algorithms);
 609                                 $def .=
 610                                     "#INFO:"
 611                                         .join(',',@current_platforms).":"
 612                                             .join(',',@current_algorithms).";";
 613                                 next;
 614                         }
 615                         if ($tag{'TRUE'} != -1) {
 616                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 617                                         next;
 618                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 619                                         $def .= "int d2i_$3(void);";
 620                                         $def .= "int i2d_$3(void);";
 621                                         # Variant for platforms that do not
 622                                         # have to access globale variables
 623                                         # in shared libraries through functions
 624                                         $def .=
 625                                             "#INFO:"
 626                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 627                                                     .join(',',@current_algorithms).";";
 628                                         $def .= "OPENSSL_EXTERN int $2_it;";
 629                                         $def .=
 630                                             "#INFO:"
 631                                                 .join(',',@current_platforms).":"
 632                                                     .join(',',@current_algorithms).";";
 633                                         # Variant for platforms that have to
 634                                         # access globale variables in shared
 635                                         # libraries through functions
 636                                         &$make_variant("$2_it","$2_it",
 637                                                       "EXPORT_VAR_AS_FUNCTION",
 638                                                       "FUNCTION");
 639                                         next;
 640                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 641                                         $def .= "int d2i_$3(void);";
 642                                         $def .= "int i2d_$3(void);";
 643                                         $def .= "int $3_free(void);";
 644                                         $def .= "int $3_new(void);";
 645                                         # Variant for platforms that do not
 646                                         # have to access globale variables
 647                                         # in shared libraries through functions
 648                                         $def .=
 649                                             "#INFO:"
 650                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 651                                                     .join(',',@current_algorithms).";";
 652                                         $def .= "OPENSSL_EXTERN int $2_it;";
 653                                         $def .=
 654                                             "#INFO:"
 655                                                 .join(',',@current_platforms).":"
 656                                                     .join(',',@current_algorithms).";";
 657                                         # Variant for platforms that have to
 658                                         # access globale variables in shared
 659                                         # libraries through functions
 660                                         &$make_variant("$2_it","$2_it",
 661                                                       "EXPORT_VAR_AS_FUNCTION",
 662                                                       "FUNCTION");
 663                                         next;
 664                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 665                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 666                                         $def .= "int d2i_$1(void);";
 667                                         $def .= "int i2d_$1(void);";
 668                                         $def .= "int $1_free(void);";
 669                                         $def .= "int $1_new(void);";
 670                                         # Variant for platforms that do not
 671                                         # have to access globale variables
 672                                         # in shared libraries through functions
 673                                         $def .=
 674                                             "#INFO:"
 675                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 676                                                     .join(',',@current_algorithms).";";
 677                                         $def .= "OPENSSL_EXTERN int $1_it;";
 678                                         $def .=
 679                                             "#INFO:"
 680                                                 .join(',',@current_platforms).":"
 681                                                     .join(',',@current_algorithms).";";
 682                                         # Variant for platforms that have to
 683                                         # access globale variables in shared
 684                                         # libraries through functions
 685                                         &$make_variant("$1_it","$1_it",
 686                                                       "EXPORT_VAR_AS_FUNCTION",
 687                                                       "FUNCTION");
 688                                         next;
 689                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 690                                         $def .= "int d2i_$2(void);";
 691                                         $def .= "int i2d_$2(void);";
 692                                         # Variant for platforms that do not
 693                                         # have to access globale variables
 694                                         # in shared libraries through functions
 695                                         $def .=
 696                                             "#INFO:"
 697                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 698                                                     .join(',',@current_algorithms).";";
 699                                         $def .= "OPENSSL_EXTERN int $2_it;";
 700                                         $def .=
 701                                             "#INFO:"
 702                                                 .join(',',@current_platforms).":"
 703                                                     .join(',',@current_algorithms).";";
 704                                         # Variant for platforms that have to
 705                                         # access globale variables in shared
 706                                         # libraries through functions
 707                                         &$make_variant("$2_it","$2_it",
 708                                                       "EXPORT_VAR_AS_FUNCTION",
 709                                                       "FUNCTION");
 710                                         next;
 711                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 712                                         $def .= "int $1_free(void);";
 713                                         $def .= "int $1_new(void);";
 714                                         next;
 715                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 716                                         $def .= "int d2i_$2(void);";
 717                                         $def .= "int i2d_$2(void);";
 718                                         $def .= "int $2_free(void);";
 719                                         $def .= "int $2_new(void);";
 720                                         # Variant for platforms that do not
 721                                         # have to access globale variables
 722                                         # in shared libraries through functions
 723                                         $def .=
 724                                             "#INFO:"
 725                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 726                                                     .join(',',@current_algorithms).";";
 727                                         $def .= "OPENSSL_EXTERN int $2_it;";
 728                                         $def .=
 729                                             "#INFO:"
 730                                                 .join(',',@current_platforms).":"
 731                                                     .join(',',@current_algorithms).";";
 732                                         # Variant for platforms that have to
 733                                         # access globale variables in shared
 734                                         # libraries through functions
 735                                         &$make_variant("$2_it","$2_it",
 736                                                       "EXPORT_VAR_AS_FUNCTION",
 737                                                       "FUNCTION");
 738                                         next;
 739                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 740                                         # Variant for platforms that do not
 741                                         # have to access globale variables
 742                                         # in shared libraries through functions
 743                                         $def .=
 744                                             "#INFO:"
 745                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 746                                                     .join(',',@current_algorithms).";";
 747                                         $def .= "OPENSSL_EXTERN int $1_it;";
 748                                         $def .=
 749                                             "#INFO:"
 750                                                 .join(',',@current_platforms).":"
 751                                                     .join(',',@current_algorithms).";";
 752                                         # Variant for platforms that have to
 753                                         # access globale variables in shared
 754                                         # libraries through functions
 755                                         &$make_variant("$1_it","$1_it",
 756                                                       "EXPORT_VAR_AS_FUNCTION",
 757                                                       "FUNCTION");
 758                                         next;
 759                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 760                                         $def .= "int i2d_$1_NDEF(void);";
 761                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 762                                         next;
 763                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 764                                         $def .= "int $1_print_ctx(void);";
 765                                         next;
 766                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 767                                         $def .= "int $2_print_ctx(void);";
 768                                         next;
 769                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 770                                         next;
 771                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 772                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 773                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 774                                         # Things not in Win16
 775                                         $def .=
 776                                             "#INFO:"
 777                                                 .join(',',"!WIN16",@current_platforms).":"
 778                                                     .join(',',@current_algorithms).";";
 779                                         $def .= "int PEM_read_$1(void);";
 780                                         $def .= "int PEM_write_$1(void);";
 781                                         $def .=
 782                                             "#INFO:"
 783                                                 .join(',',@current_platforms).":"
 784                                                     .join(',',@current_algorithms).";";
 785                                         # Things that are everywhere
 786                                         $def .= "int PEM_read_bio_$1(void);";
 787                                         $def .= "int PEM_write_bio_$1(void);";
 788                                         next;
 789                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 790                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 791                                         # Things not in Win16
 792                                         $def .=
 793                                             "#INFO:"
 794                                                 .join(',',"!WIN16",@current_platforms).":"
 795                                                     .join(',',@current_algorithms).";";
 796                                         $def .= "int PEM_write_$1(void);";
 797                                         $def .=
 798                                             "#INFO:"
 799                                                 .join(',',@current_platforms).":"
 800                                                     .join(',',@current_algorithms).";";
 801                                         # Things that are everywhere
 802                                         $def .= "int PEM_write_bio_$1(void);";
 803                                         next;
 804                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 805                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 806                                         # Things not in Win16
 807                                         $def .=
 808                                             "#INFO:"
 809                                                 .join(',',"!WIN16",@current_platforms).":"
 810                                                     .join(',',@current_algorithms).";";
 811                                         $def .= "int PEM_read_$1(void);";
 812                                         $def .=
 813                                             "#INFO:"
 814                                                 .join(',',@current_platforms).":"
 815                                                     .join(',',@current_algorithms).";";
 816                                         # Things that are everywhere
 817                                         $def .= "int PEM_read_bio_$1(void);";
 818                                         next;
 819                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 820                                         # Variant for platforms that do not
 821                                         # have to access globale variables
 822                                         # in shared libraries through functions
 823                                         $def .=
 824                                             "#INFO:"
 825                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 826                                                     .join(',',@current_algorithms).";";
 827                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 828                                         $def .=
 829                                             "#INFO:"
 830                                                 .join(',',@current_platforms).":"
 831                                                     .join(',',@current_algorithms).";";
 832                                         # Variant for platforms that have to
 833                                         # access globale variables in shared
 834                                         # libraries through functions
 835                                         &$make_variant("_shadow_$2","_shadow_$2",
 836                                                       "EXPORT_VAR_AS_FUNCTION",
 837                                                       "FUNCTION");
 838                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 839                                         if (/\{|\/\*|\([^\)]*$/) {
 840                                                 $line = $_;
 841                                         } else {
 842                                                 $def .= $_;
 843                                         }
 844                                 }
 845                         }
 846                 }
 847                 close(IN);
 848
 849                 my $algs;
 850                 my $plays;
 851
 852                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 853                 foreach (split /;/, $def) {
 854                         my $s; my $k = "FUNCTION"; my $p; my $a;
 855                         s/^[\n\s]*//g;
 856                         s/[\n\s]*$//g;
 857                         next if(/\#undef/);
 858                         next if(/typedef\W/);
 859                         next if(/\#define/);
 860
 861                         # Reduce argument lists to empty ()
 862                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 863                         while(/\(.*\)/s) {
 864                                 s/\([^\(\)]+\)/\{\}/gs;
 865                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 866                         }
 867                         # pretend as we didn't use curly braces: {} -> ()
 868                         s/\{\}/\(\)/gs;
 869
 870                         s/STACK_OF\(\)/void/gs;
 871
 872                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 873                         if (/^\#INFO:([^:]*):(.*)$/) {
 874                                 $plats = $1;
 875                                 $algs = $2;
 876                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 877                                 next;
 878                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 879                                 $s = $1;
 880                                 $k = "VARIABLE";
 881                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 882                         } elsif (/TYPEDEF_\w+_OF/s) {
 883                                 next;
 884                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 885                                 $s = $1;                # a function name!
 886                                 print STDERR "DEBUG: found function $s\n" if $debug;
 887                         } elsif (/\(/ and not (/=/)) {
 888                                 print STDERR "File $file: cannot parse: $_;\n";
 889                                 next;
 890                         } else {
 891                                 next;
 892                         }
 893
 894                         $syms{$s} = 1;
 895                         $kind{$s} = $k;
 896
 897                         $p = $plats;
 898                         $a = $algs;
 899                         $a .= ",BF" if($s =~ /EVP_bf/);
 900                         $a .= ",CAST" if($s =~ /EVP_cast/);
 901                         $a .= ",DES" if($s =~ /EVP_des/);
 902                         $a .= ",DSA" if($s =~ /EVP_dss/);
 903                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 904                         $a .= ",MD2" if($s =~ /EVP_md2/);
 905                         $a .= ",MD4" if($s =~ /EVP_md4/);
 906                         $a .= ",MD5" if($s =~ /EVP_md5/);
 907                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 908                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 909                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 910                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 911                         $a .= ",SHA" if($s =~ /EVP_sha/);
 912                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 913                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 914                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 915                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 916
 917                         $platform{$s} =
 918                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 919                         $algorithm{$s} .= ','.$a;
 920
 921                         if (defined($variant{$s})) {
 922                                 foreach $v (split /;/,$variant{$s}) {
 923                                         (my $r, my $p, my $k) = split(/:/,$v);
 924                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 925                                         $syms{$r} = 1;
 926                                         if (!defined($k)) { $k = $kind{$s}; }
 927                                         $kind{$r} = $k."(".$s.")";
 928                                         $algorithm{$r} = $algorithm{$s};
 929                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 930                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 931                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 932                                 }
 933                         }
 934                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 935                 }
 936         }
 937
 938         # Prune the returned symbols
 939
 940         delete $syms{"bn_dump1"};
 941         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 942
 943         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 944         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 945         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 946         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 947
 948         # Info we know about
 949
 950         push @ret, map { $_."\\".&info_string($_,"EXIST",
 951                                               $platform{$_},
 952                                               $kind{$_},
 953                                               $algorithm{$_}) } keys %syms;
 954
 955         if (keys %unknown_algorithms) {
 956                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 957                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 958         }
 959         return(@ret);
 960 }
 961
 962 # Param: string of comma-separated platform-specs.
 963 sub reduce_platforms
 964 {
 965         my ($platforms) = @_;
 966         my $pl = defined($platforms) ? $platforms : "";
 967         my %p = map { $_ => 0 } split /,/, $pl;
 968         my $ret;
 969
 970         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 971             if $debug;
 972         # We do this, because if there's code like the following, it really
 973         # means the function exists in all cases and should therefore be
 974         # everywhere.  By increasing and decreasing, we may attain 0:
 975         #
 976         # ifndef WIN16
 977         #    int foo();
 978         # else
 979         #    int _fat foo();
 980         # endif
 981         foreach $platform (split /,/, $pl) {
 982                 if ($platform =~ /^!(.*)$/) {
 983                         $p{$1}--;
 984                 } else {
 985                         $p{$platform}++;
 986                 }
 987         }
 988         foreach $platform (keys %p) {
 989                 if ($p{$platform} == 0) { delete $p{$platform}; }
 990         }
 991
 992         delete $p{""};
 993
 994         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 995         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 996             if $debug;
 997         return $ret;
 998 }
 999
1000 sub info_string {
1001         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1002
1003         my %a = defined($algorithms) ?
1004             map { $_ => 1 } split /,/, $algorithms : ();
1005         my $k = defined($kind) ? $kind : "FUNCTION";
1006         my $ret;
1007         my $p = &reduce_platforms($platforms);
1008
1009         delete $a{""};
1010
1011         $ret = $exist;
1012         $ret .= ":".$p;
1013         $ret .= ":".$k;
1014         $ret .= ":".join(',',sort keys %a);
1015         return $ret;
1016 }
1017
1018 sub maybe_add_info {
1019         (my $name, *nums, my @symbols) = @_;
1020         my $sym;
1021         my $new_info = 0;
1022         my %syms=();
1023
1024         print STDERR "Updating $name info\n";
1025         foreach $sym (@symbols) {
1026                 (my $s, my $i) = split /\\/, $sym;
1027                 if (defined($nums{$s})) {
1028                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1029                         (my $n, my $dummy) = split /\\/, $nums{$s};
1030                         if (!defined($dummy) || $i ne $dummy) {
1031                                 $nums{$s} = $n."\\".$i;
1032                                 $new_info++;
1033                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1034                         }
1035                 }
1036                 $syms{$s} = 1;
1037         }
1038
1039         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1040         foreach $sym (@s) {
1041                 (my $n, my $i) = split /\\/, $nums{$sym};
1042                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1043                         $new_info++;
1044                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1045                 }
1046         }
1047         if ($new_info) {
1048                 print STDERR "$new_info old symbols got an info update\n";
1049                 if (!$do_rewrite) {
1050                         print STDERR "You should do a rewrite to fix this.\n";
1051                 }
1052         } else {
1053                 print STDERR "No old symbols needed info update\n";
1054         }
1055 }
1056
1057 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1058 sub is_valid
1059 {
1060         my ($keywords_txt,$platforms) = @_;
1061         my (@keywords) = split /,/,$keywords_txt;
1062         my ($falsesum, $truesum) = (0, 1);
1063
1064         # Param: one keyword
1065         sub recognise
1066         {
1067                 my ($keyword,$platforms) = @_;
1068
1069                 if ($platforms) {
1070                         # platforms
1071                         if ($keyword eq "VMS" && $VMS) { return 1; }
1072                         if ($keyword eq "WIN32" && $W32) { return 1; }
1073                         if ($keyword eq "WIN16" && $W16) { return 1; }
1074                         if ($keyword eq "WINNT" && $NT) { return 1; }
1075                         if ($keyword eq "OS2" && $OS2) { return 1; }
1076                         # Special platforms:
1077                         # EXPORT_VAR_AS_FUNCTION means that global variables
1078                         # will be represented as functions.  This currently
1079                         # only happens on VMS-VAX.
1080                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1081                                 return 1;
1082                         }
1083                         return 0;
1084                 } else {
1085                         # algorithms
1086                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1087                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1088                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1089                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1090                         if ($keyword eq "DES" && $no_des) { return 0; }
1091                         if ($keyword eq "BF" && $no_bf) { return 0; }
1092                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1093                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1094                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1095                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1096                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1097                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1098                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1099                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1100                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1101                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1102                         if ($keyword eq "DH" && $no_dh) { return 0; }
1103                         if ($keyword eq "EC" && $no_ec) { return 0; }
1104                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1105                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1106                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1107                         if ($keyword eq "AES" && $no_aes) { return 0; }
1108                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1109                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1110                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1111                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1112                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1113                         if ($keyword eq "ERR" && $no_err) { return 0; }
1114                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1115                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1116                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1117                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1118                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1119                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1120                         if ($keyword eq "HW" && $no_hw) { return 0; }
1121                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1122                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1123                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1124                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1125                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1126                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1127                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1128
1129                         # Nothing recognise as true
1130                         return 1;
1131                 }
1132         }
1133
1134         foreach $k (@keywords) {
1135                 if ($k =~ /^!(.*)$/) {
1136                         $falsesum += &recognise($1,$platforms);
1137                 } else {
1138                         $truesum *= &recognise($k,$platforms);
1139                 }
1140         }
1141         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1142         return (!$falsesum) && $truesum;
1143 }
1144
1145 sub print_test_file
1146 {
1147         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1148         my $n = 1; my @e; my @r;
1149         my $sym; my $prev = ""; my $prefSSLeay;
1150
1151         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1152         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1153         @symbols=((sort @e),(sort @r));
1154
1155         foreach $sym (@symbols) {
1156                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1157                 my $v = 0;
1158                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1159                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1160                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1161                 if (!defined($nums{$s})) {
1162                         print STDERR "Warning: $s does not have a number assigned\n"
1163                             if(!$do_update);
1164                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1165                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1166                         if ($prev eq $s2) {
1167                                 print OUT "\t/* The following has already appeared previously */\n";
1168                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1169                         }
1170                         $prev = $s2;    # To warn about duplicates...
1171
1172                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1173                         if ($v) {
1174                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1175                         } else {
1176                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1177                         }
1178                 }
1179         }
1180 }
1181
1182 sub get_version {
1183    local *MF;
1184    my $v = '?';
1185    open MF, 'Makefile' or return $v;
1186    while (<MF>) {
1187      $v = $1, last if /^VERSION=(.*?)\s*$/;
1188    }
1189    close MF;
1190    return $v;
1191 }
1192
1193 sub print_def_file
1194 {
1195         (*OUT,my $name,*nums,my @symbols)=@_;
1196         my $n = 1; my @e; my @r; my @v; my $prev="";
1197         my $liboptions="";
1198         my $libname = $name;
1199         my $http_vendor = 'www.openssl.org/';
1200         my $version = get_version();
1201         my $what = "OpenSSL: implementation of Secure Socket Layer";
1202         my $description = "$what $version, $name - http://$http_vendor";
1203
1204         if ($W32)
1205                 { $libname.="32"; }
1206         elsif ($W16)
1207                 { $libname.="16"; }
1208         elsif ($OS2)
1209                 { # DLL names should not clash on the whole system.
1210                   # However, they should not have any particular relationship
1211                   # to the name of the static library.  Chose descriptive names
1212                   # (must be at most 8 chars).
1213                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1214                   $libname = $translate{$name} || $name;
1215                   $liboptions = <<EOO;
1216 INITINSTANCE
1217 DATA MULTIPLE NONSHARED
1218 EOO
1219                   # Vendor field can't contain colon, drat; so we omit http://
1220                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1221                 }
1222
1223         print OUT <<"EOF";
1224 ;
1225 ; Definition file for the DLL version of the $name library from OpenSSL
1226 ;
1227
1228 LIBRARY         $libname        $liboptions
1229
1230 EOF
1231
1232         if ($W16) {
1233                 print <<"EOF";
1234 CODE            PRELOAD MOVEABLE
1235 DATA            PRELOAD MOVEABLE SINGLE
1236
1237 EXETYPE         WINDOWS
1238
1239 HEAPSIZE        4096
1240 STACKSIZE       8192
1241
1242 EOF
1243         }
1244
1245         print "EXPORTS\n";
1246
1247         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1248         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1249         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1250         @symbols=((sort @e),(sort @r), (sort @v));
1251
1252
1253         foreach $sym (@symbols) {
1254                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1255                 my $v = 0;
1256                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1257                 if (!defined($nums{$s})) {
1258                         printf STDERR "Warning: $s does not have a number assigned\n"
1259                             if(!$do_update);
1260                 } else {
1261                         (my $n, my $dummy) = split /\\/, $nums{$s};
1262                         my %pf = ();
1263                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1264                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1265                         if (is_valid($p,1) && is_valid($a,0)) {
1266                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1267                                 if ($prev eq $s2) {
1268                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1269                                 }
1270                                 $prev = $s2;    # To warn about duplicates...
1271                                 if($v && !$OS2) {
1272                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1273                                 } else {
1274                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1275                                 }
1276                         }
1277                 }
1278         }
1279         printf OUT "\n";
1280 }
1281
1282 sub load_numbers
1283 {
1284         my($name)=@_;
1285         my(@a,%ret);
1286
1287         $max_num = 0;
1288         $num_noinfo = 0;
1289         $prev = "";
1290         $prev_cnt = 0;
1291
1292         open(IN,"<$name") || die "unable to open $name:$!\n";
1293         while (<IN>) {
1294                 chop;
1295                 s/#.*$//;
1296                 next if /^\s*$/;
1297                 @a=split;
1298                 if (defined $ret{$a[0]}) {
1299                         # This is actually perfectly OK
1300                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1301                 }
1302                 if ($max_num > $a[1]) {
1303                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1304                 }
1305                 elsif ($max_num == $a[1]) {
1306                         # This is actually perfectly OK
1307                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1308                         if ($a[0] eq $prev) {
1309                                 $prev_cnt++;
1310                                 $a[0] .= "{$prev_cnt}";
1311                         }
1312                 }
1313                 else {
1314                         $prev_cnt = 0;
1315                 }
1316                 if ($#a < 2) {
1317                         # Existence will be proven later, in do_defs
1318                         $ret{$a[0]}=$a[1];
1319                         $num_noinfo++;
1320                 } else {
1321                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1322                 }
1323                 $max_num = $a[1] if $a[1] > $max_num;
1324                 $prev=$a[0];
1325         }
1326         if ($num_noinfo) {
1327                 print STDERR "Warning: $num_noinfo symbols were without info.";
1328                 if ($do_rewrite) {
1329                         printf STDERR "  The rewrite will fix this.\n";
1330                 } else {
1331                         printf STDERR "  You should do a rewrite to fix this.\n";
1332                 }
1333         }
1334         close(IN);
1335         return(%ret);
1336 }
1337
1338 sub parse_number
1339 {
1340         (my $str, my $what) = @_;
1341         (my $n, my $i) = split(/\\/,$str);
1342         if ($what eq "n") {
1343                 return $n;
1344         } else {
1345                 return $i;
1346         }
1347 }
1348
1349 sub rewrite_numbers
1350 {
1351         (*OUT,$name,*nums,@symbols)=@_;
1352         my $thing;
1353
1354         print STDERR "Rewriting $name\n";
1355
1356         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1357         my $r; my %r; my %rsyms;
1358         foreach $r (@r) {
1359                 (my $s, my $i) = split /\\/, $r;
1360                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1361                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1362                 $r{$a} = $s."\\".$i;
1363                 $rsyms{$s} = 1;
1364         }
1365
1366         my %syms = ();
1367         foreach $_ (@symbols) {
1368                 (my $n, my $i) = split /\\/;
1369                 $syms{$n} = 1;
1370         }
1371
1372         my @s=sort {
1373             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1374             || $a cmp $b
1375         } keys %nums;
1376         foreach $sym (@s) {
1377                 (my $n, my $i) = split /\\/, $nums{$sym};
1378                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1379                 next if defined($rsyms{$sym});
1380                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1381                 $i="NOEXIST::FUNCTION:"
1382                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1383                 my $s2 = $sym;
1384                 $s2 =~ s/\{[0-9]+\}$//;
1385                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1386                 if (exists $r{$sym}) {
1387                         (my $s, $i) = split /\\/,$r{$sym};
1388                         my $s2 = $s;
1389                         $s2 =~ s/\{[0-9]+\}$//;
1390                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1391                 }
1392         }
1393 }
1394
1395 sub update_numbers
1396 {
1397         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1398         my $new_syms = 0;
1399
1400         print STDERR "Updating $name numbers\n";
1401
1402         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1403         my $r; my %r; my %rsyms;
1404         foreach $r (@r) {
1405                 (my $s, my $i) = split /\\/, $r;
1406                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1407                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1408                 $r{$a} = $s."\\".$i;
1409                 $rsyms{$s} = 1;
1410         }
1411
1412         foreach $sym (@symbols) {
1413                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1414                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1415                 next if defined($rsyms{$sym});
1416                 die "ERROR: Symbol $sym had no info attached to it."
1417                     if $i eq "";
1418                 if (!exists $nums{$s}) {
1419                         $new_syms++;
1420                         my $s2 = $s;
1421                         $s2 =~ s/\{[0-9]+\}$//;
1422                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1423                         if (exists $r{$s}) {
1424                                 ($s, $i) = split /\\/,$r{$s};
1425                                 $s =~ s/\{[0-9]+\}$//;
1426                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1427                         }
1428                 }
1429         }
1430         if($new_syms) {
1431                 print STDERR "$new_syms New symbols added\n";
1432         } else {
1433                 print STDERR "No New symbols Added\n";
1434         }
1435 }
1436
1437 sub check_existing
1438 {
1439         (*nums, my @symbols)=@_;
1440         my %existing; my @remaining;
1441         @remaining=();
1442         foreach $sym (@symbols) {
1443                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1444                 $existing{$s}=1;
1445         }
1446         foreach $sym (keys %nums) {
1447                 if (!exists $existing{$sym}) {
1448                         push @remaining, $sym;
1449                 }
1450         }
1451         if(@remaining) {
1452                 print STDERR "The following symbols do not seem to exist:\n";
1453                 foreach $sym (@remaining) {
1454                         print STDERR "\t",$sym,"\n";
1455                 }
1456         }
1457 }
1458