util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libeay.num and ssleay.num,...
   9 # Previously, they had the following format:
  10 #
  11 #       routine-name    nnnn
  12 #
  13 # But that isn't enough for a number of reasons, the first on being that
  14 # this format is (needlessly) very Win32-centric, and even then...
  15 # One of the biggest problems is that there's no information about what
  16 # routines should actually be used, which varies with what crypto algorithms
  17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
  18 # need to keep track of the global variables as well as the functions.
  19 #
  20 # So, a remake of this script is done so as to include information on the
  21 # kind of symbol it is (function or variable) and what algorithms they're
  22 # part of.  This will allow easy translating to .def files or the corresponding
  23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
  24 # file).
  25 #
  26 # The format now becomes:
  27 #
  28 #       routine-name    nnnn    info
  29 #
  30 # and the "info" part is actually a colon-separated string of fields with
  31 # the following meaning:
  32 #
  33 #       existence:platform:kind:algorithms
  34 #
  35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  36 #   found somewhere in the source,
  37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  38 #   comma-separated list of the platform, just as they are if the symbol exists
  39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  40 #   symbol name variants for platforms where the names are too long for the
  41 #   compiler or linker, or if the systems is case insensitive and there is a
  42 #   clash, or the symbol is implemented differently (see
  43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  44 #   in the file crypto/symhacks.h.
  45 #   The semantics for the platforms is that every item is checked against the
  46 #   environment.  For the negative items ("!FOO"), if any of them is false
  47 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  48 #   used.  For the positive itms, if all of them are false in the environment,
  49 #   the corresponding symbol can't be used.  Any combination of positive and
  50 #   negative items are possible, and of course leave room for some redundancy.
  51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  53 #   exclude symbols that are part of an algorithm that some user wants to
  54 #   exclude.
  55 #
  56
  57 my $debug=0;
  58
  59 my $crypto_num= "util/libeay.num";
  60 my $ssl_num=    "util/ssleay.num";
  61 my $libname;
  62
  63 my $do_update = 0;
  64 my $do_rewrite = 1;
  65 my $do_crypto = 0;
  66 my $do_ssl = 0;
  67 my $do_ctest = 0;
  68 my $do_ctestall = 0;
  69 my $do_checkexist = 0;
  70
  71 my $VMSVAX=0;
  72 my $VMSAlpha=0;
  73 my $VMS=0;
  74 my $W32=0;
  75 my $W16=0;
  76 my $NT=0;
  77 my $OS2=0;
  78 # Set this to make typesafe STACK definitions appear in DEF
  79 my $safe_stack_def = 0;
  80
  81 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
  82                         "EXPORT_VAR_AS_FUNCTION" );
  83 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
  84 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  85                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  86                          "SHA256", "SHA512", "RIPEMD",
  87                          "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA",
  88                          "HMAC", "AES", "WHIRLPOOL", "CAMELLIA", "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;
 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; $no_mdc2=1; }
 168         elsif (/^no-bf$/)       { $no_bf=1; }
 169         elsif (/^no-cast$/)     { $no_cast=1; }
 170         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
 171         elsif (/^no-md2$/)      { $no_md2=1; }
 172         elsif (/^no-md4$/)      { $no_md4=1; }
 173         elsif (/^no-md5$/)      { $no_md5=1; }
 174         elsif (/^no-sha$/)      { $no_sha=1; }
 175         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 176         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 177         elsif (/^no-rsa$/)      { $no_rsa=1; }
 178         elsif (/^no-dsa$/)      { $no_dsa=1; }
 179         elsif (/^no-dh$/)       { $no_dh=1; }
 180         elsif (/^no-ec$/)       { $no_ec=1; }
 181         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 182         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 183         elsif (/^no-hmac$/)     { $no_hmac=1; }
 184         elsif (/^no-aes$/)      { $no_aes=1; }
 185         elsif (/^no-camellia$/) { $no_camellia=1; }
 186         elsif (/^no-evp$/)      { $no_evp=1; }
 187         elsif (/^no-lhash$/)    { $no_lhash=1; }
 188         elsif (/^no-stack$/)    { $no_stack=1; }
 189         elsif (/^no-err$/)      { $no_err=1; }
 190         elsif (/^no-buffer$/)   { $no_buffer=1; }
 191         elsif (/^no-bio$/)      { $no_bio=1; }
 192         #elsif (/^no-locking$/) { $no_locking=1; }
 193         elsif (/^no-comp$/)     { $no_comp=1; }
 194         elsif (/^no-dso$/)      { $no_dso=1; }
 195         elsif (/^no-krb5$/)     { $no_krb5=1; }
 196         elsif (/^no-engine$/)   { $no_engine=1; }
 197         elsif (/^no-hw$/)       { $no_hw=1; }
 198         elsif (/^no-gmp$/)      { $no_gmp=1; }
 199         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 200         }
 201
 202
 203 if (!$libname) {
 204         if ($do_ssl) {
 205                 $libname="SSLEAY";
 206         }
 207         if ($do_crypto) {
 208                 $libname="LIBEAY";
 209         }
 210 }
 211
 212 # If no platform is given, assume WIN32
 213 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 214         $W32 = 1;
 215 }
 216
 217 # Add extra knowledge
 218 if ($W16) {
 219         $no_fp_api=1;
 220 }
 221
 222 if (!$do_ssl && !$do_crypto)
 223         {
 224         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 225         exit(1);
 226         }
 227
 228 %ssl_list=&load_numbers($ssl_num);
 229 $max_ssl = $max_num;
 230 %crypto_list=&load_numbers($crypto_num);
 231 $max_crypto = $max_num;
 232
 233 my $ssl="ssl/ssl.h";
 234 $ssl.=" ssl/kssl.h";
 235 $ssl.=" ssl/tls1.h";
 236
 237 my $crypto ="crypto/crypto.h";
 238 $crypto.=" crypto/o_dir.h";
 239 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 240 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 241 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 242 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 243 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 244 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 245 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 246 $crypto.=" crypto/whrlpool/whrlpool.h" ;
 247 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 248 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 249 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 250 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 251 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 252 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 253 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 254 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 255
 256 $crypto.=" crypto/bn/bn.h";
 257 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 258 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 259 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 260 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 261 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 262 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 263 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 264
 265 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 266 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 267 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 268 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 269 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 270 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 271 $crypto.=" crypto/conf/conf.h";
 272 $crypto.=" crypto/txt_db/txt_db.h";
 273
 274 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 275 $crypto.=" crypto/objects/objects.h";
 276 $crypto.=" crypto/pem/pem.h";
 277 #$crypto.=" crypto/meth/meth.h";
 278 $crypto.=" crypto/asn1/asn1.h";
 279 $crypto.=" crypto/asn1/asn1t.h";
 280 $crypto.=" crypto/asn1/asn1_mac.h";
 281 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 282 $crypto.=" crypto/pkcs7/pkcs7.h";
 283 $crypto.=" crypto/pkcs12/pkcs12.h";
 284 $crypto.=" crypto/x509/x509.h";
 285 $crypto.=" crypto/x509/x509_vfy.h";
 286 $crypto.=" crypto/x509v3/x509v3.h";
 287 $crypto.=" crypto/ts/ts.h";
 288 $crypto.=" crypto/rand/rand.h";
 289 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 290 $crypto.=" crypto/ocsp/ocsp.h";
 291 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 292 $crypto.=" crypto/krb5/krb5_asn.h";
 293 $crypto.=" crypto/store/store.h";
 294 $crypto.=" crypto/pqueue/pqueue.h";
 295
 296 my $symhacks="crypto/symhacks.h";
 297
 298 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 299 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 300
 301 if ($do_update) {
 302
 303 if ($do_ssl == 1) {
 304
 305         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 306         if ($do_rewrite == 1) {
 307                 open(OUT, ">$ssl_num");
 308                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 309         } else {
 310                 open(OUT, ">>$ssl_num");
 311         }
 312         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 313         close OUT;
 314 }
 315
 316 if($do_crypto == 1) {
 317
 318         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 319         if ($do_rewrite == 1) {
 320                 open(OUT, ">$crypto_num");
 321                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 322         } else {
 323                 open(OUT, ">>$crypto_num");
 324         }
 325         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 326         close OUT;
 327 }
 328
 329 } elsif ($do_checkexist) {
 330         &check_existing(*ssl_list, @ssl_symbols)
 331                 if $do_ssl == 1;
 332         &check_existing(*crypto_list, @crypto_symbols)
 333                 if $do_crypto == 1;
 334 } elsif ($do_ctest || $do_ctestall) {
 335
 336         print <<"EOF";
 337
 338 /* Test file to check all DEF file symbols are present by trying
 339  * to link to all of them. This is *not* intended to be run!
 340  */
 341
 342 int main()
 343 {
 344 EOF
 345         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 346                 if $do_ssl == 1;
 347
 348         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 349                 if $do_crypto == 1;
 350
 351         print "}\n";
 352
 353 } else {
 354
 355         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 356                 if $do_ssl == 1;
 357
 358         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 359                 if $do_crypto == 1;
 360
 361 }
 362
 363
 364 sub do_defs
 365 {
 366         my($name,$files,$symhacksfile)=@_;
 367         my $file;
 368         my @ret;
 369         my %syms;
 370         my %platform;           # For anything undefined, we assume ""
 371         my %kind;               # For anything undefined, we assume "FUNCTION"
 372         my %algorithm;          # For anything undefined, we assume ""
 373         my %variant;
 374         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 375                                 # is the same name as the original.
 376         my $cpp;
 377         my %unknown_algorithms = ();
 378
 379         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 380                 {
 381                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 382                 open(IN,"<$file") || die "unable to open $file:$!\n";
 383                 my $line = "", my $def= "";
 384                 my %tag = (
 385                         (map { $_ => 0 } @known_platforms),
 386                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 387                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 388                         NOPROTO         => 0,
 389                         PERL5           => 0,
 390                         _WINDLL         => 0,
 391                         CONST_STRICT    => 0,
 392                         TRUE            => 1,
 393                 );
 394                 my $symhacking = $file eq $symhacksfile;
 395                 my @current_platforms = ();
 396                 my @current_algorithms = ();
 397
 398                 # params: symbol, alias, platforms, kind
 399                 # The reason to put this subroutine in a variable is that
 400                 # it will otherwise create it's own, unshared, version of
 401                 # %tag and %variant...
 402                 my $make_variant = sub
 403                 {
 404                         my ($s, $a, $p, $k) = @_;
 405                         my ($a1, $a2);
 406
 407                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 408                         if (defined($p))
 409                         {
 410                                 $a1 = join(",",$p,
 411                                            grep(!/^$/,
 412                                                 map { $tag{$_} == 1 ? $_ : "" }
 413                                                 @known_platforms));
 414                         }
 415                         else
 416                         {
 417                                 $a1 = join(",",
 418                                            grep(!/^$/,
 419                                                 map { $tag{$_} == 1 ? $_ : "" }
 420                                                 @known_platforms));
 421                         }
 422                         $a2 = join(",",
 423                                    grep(!/^$/,
 424                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 425                                         @known_ossl_platforms));
 426                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 427                         if ($a1 eq "") { $a1 = $a2; }
 428                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 429                         if ($a eq $s)
 430                         {
 431                                 if (!defined($variant_cnt{$s}))
 432                                 {
 433                                         $variant_cnt{$s} = 0;
 434                                 }
 435                                 $variant_cnt{$s}++;
 436                                 $a .= "{$variant_cnt{$s}}";
 437                         }
 438                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 439                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 440                         if (!grep(/^$togrep$/,
 441                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 442                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 443                                 $variant{$s} .= $toadd;
 444                         }
 445                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 446                 };
 447
 448                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 449                 while(<IN>) {
 450                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 451                                 {
 452                                 undef @tag;
 453                                 last;
 454                                 }
 455                         if ($line ne '') {
 456                                 $_ = $line . $_;
 457                                 $line = '';
 458                         }
 459
 460                         if (/\\$/) {
 461                                 chomp; # remove eol
 462                                 chop; # remove ending backslash
 463                                 $line = $_;
 464                                 next;
 465                         }
 466
 467                         if(/\/\*/) {
 468                                 if (not /\*\//) {       # multiline comment...
 469                                         $line = $_;     # ... just accumulate
 470                                         next;
 471                                 } else {
 472                                         s/\/\*.*?\*\///gs;# wipe it
 473                                 }
 474                         }
 475
 476                         if ($cpp) {
 477                                 $cpp++ if /^#\s*if/;
 478                                 $cpp-- if /^#\s*endif/;
 479                                 next;
 480                         }
 481                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 482
 483                         s/{[^{}]*}//gs;                      # ignore {} blocks
 484                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 485                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 486                         if (/^\#\s*ifndef\s+(.*)/) {
 487                                 push(@tag,"-");
 488                                 push(@tag,$1);
 489                                 $tag{$1}=-1;
 490                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 491                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 492                                 push(@tag,"-");
 493                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 494                                         my $tmp_1 = $1;
 495                                         my $tmp_;
 496                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 497                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 498                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 499                                                 push(@tag,$1);
 500                                                 $tag{$1}=-1;
 501                                         }
 502                                 } else {
 503                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 504                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 505                                         push(@tag,$1);
 506                                         $tag{$1}=-1;
 507                                 }
 508                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 509                                 push(@tag,"-");
 510                                 push(@tag,$1);
 511                                 $tag{$1}=1;
 512                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 513                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 514                                 push(@tag,"-");
 515                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 516                                         my $tmp_1 = $1;
 517                                         my $tmp_;
 518                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 519                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 520                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 521                                                 push(@tag,$1);
 522                                                 $tag{$1}=1;
 523                                         }
 524                                 } else {
 525                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 526                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 527                                         push(@tag,$1);
 528                                         $tag{$1}=1;
 529                                 }
 530                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 531                                 my $tag_i = $#tag;
 532                                 while($tag[$tag_i] ne "-") {
 533                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 534                                                 $tag{$tag[$tag_i]}=2;
 535                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 536                                         }
 537                                         $tag_i--;
 538                                 }
 539                         } elsif (/^\#\s*endif/) {
 540                                 my $tag_i = $#tag;
 541                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 542                                         my $t=$tag[$tag_i];
 543                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 544                                         if ($tag{$t}==2) {
 545                                                 $tag{$t}=-1;
 546                                         } else {
 547                                                 $tag{$t}=0;
 548                                         }
 549                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 550                                         pop(@tag);
 551                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 552                                                 $t=$1;
 553                                         } else {
 554                                                 $t="";
 555                                         }
 556                                         if ($t ne ""
 557                                             && !grep(/^$t$/, @known_algorithms)) {
 558                                                 $unknown_algorithms{$t} = 1;
 559                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 560                                         }
 561                                         $tag_i--;
 562                                 }
 563                                 pop(@tag);
 564                         } elsif (/^\#\s*else/) {
 565                                 my $tag_i = $#tag;
 566                                 while($tag[$tag_i] ne "-") {
 567                                         my $t=$tag[$tag_i];
 568                                         $tag{$t}= -$tag{$t};
 569                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 570                                         $tag_i--;
 571                                 }
 572                         } elsif (/^\#\s*if\s+1/) {
 573                                 push(@tag,"-");
 574                                 # Dummy tag
 575                                 push(@tag,"TRUE");
 576                                 $tag{"TRUE"}=1;
 577                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 578                         } elsif (/^\#\s*if\s+0/) {
 579                                 push(@tag,"-");
 580                                 # Dummy tag
 581                                 push(@tag,"TRUE");
 582                                 $tag{"TRUE"}=-1;
 583                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 584                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 585                                  && $symhacking && $tag{'TRUE'} != -1) {
 586                                 # This is for aliasing.  When we find an alias,
 587                                 # we have to invert
 588                                 &$make_variant($1,$2);
 589                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 590                         }
 591                         if (/^\#/) {
 592                                 @current_platforms =
 593                                     grep(!/^$/,
 594                                          map { $tag{$_} == 1 ? $_ :
 595                                                    $tag{$_} == -1 ? "!".$_  : "" }
 596                                          @known_platforms);
 597                                 push @current_platforms
 598                                     , grep(!/^$/,
 599                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 600                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 601                                            @known_ossl_platforms);
 602                                 @current_algorithms =
 603                                     grep(!/^$/,
 604                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 605                                          @known_algorithms);
 606                                 $def .=
 607                                     "#INFO:"
 608                                         .join(',',@current_platforms).":"
 609                                             .join(',',@current_algorithms).";";
 610                                 next;
 611                         }
 612                         if ($tag{'TRUE'} != -1) {
 613                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 614                                         next;
 615                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 616                                         $def .= "int d2i_$3(void);";
 617                                         $def .= "int i2d_$3(void);";
 618                                         # Variant for platforms that do not
 619                                         # have to access globale variables
 620                                         # in shared libraries through functions
 621                                         $def .=
 622                                             "#INFO:"
 623                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 624                                                     .join(',',@current_algorithms).";";
 625                                         $def .= "OPENSSL_EXTERN int $2_it;";
 626                                         $def .=
 627                                             "#INFO:"
 628                                                 .join(',',@current_platforms).":"
 629                                                     .join(',',@current_algorithms).";";
 630                                         # Variant for platforms that have to
 631                                         # access globale variables in shared
 632                                         # libraries through functions
 633                                         &$make_variant("$2_it","$2_it",
 634                                                       "EXPORT_VAR_AS_FUNCTION",
 635                                                       "FUNCTION");
 636                                         next;
 637                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 638                                         $def .= "int d2i_$3(void);";
 639                                         $def .= "int i2d_$3(void);";
 640                                         $def .= "int $3_free(void);";
 641                                         $def .= "int $3_new(void);";
 642                                         # Variant for platforms that do not
 643                                         # have to access globale variables
 644                                         # in shared libraries through functions
 645                                         $def .=
 646                                             "#INFO:"
 647                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 648                                                     .join(',',@current_algorithms).";";
 649                                         $def .= "OPENSSL_EXTERN int $2_it;";
 650                                         $def .=
 651                                             "#INFO:"
 652                                                 .join(',',@current_platforms).":"
 653                                                     .join(',',@current_algorithms).";";
 654                                         # Variant for platforms that have to
 655                                         # access globale variables in shared
 656                                         # libraries through functions
 657                                         &$make_variant("$2_it","$2_it",
 658                                                       "EXPORT_VAR_AS_FUNCTION",
 659                                                       "FUNCTION");
 660                                         next;
 661                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 662                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 663                                         $def .= "int d2i_$1(void);";
 664                                         $def .= "int i2d_$1(void);";
 665                                         $def .= "int $1_free(void);";
 666                                         $def .= "int $1_new(void);";
 667                                         # Variant for platforms that do not
 668                                         # have to access globale variables
 669                                         # in shared libraries through functions
 670                                         $def .=
 671                                             "#INFO:"
 672                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 673                                                     .join(',',@current_algorithms).";";
 674                                         $def .= "OPENSSL_EXTERN int $1_it;";
 675                                         $def .=
 676                                             "#INFO:"
 677                                                 .join(',',@current_platforms).":"
 678                                                     .join(',',@current_algorithms).";";
 679                                         # Variant for platforms that have to
 680                                         # access globale variables in shared
 681                                         # libraries through functions
 682                                         &$make_variant("$1_it","$1_it",
 683                                                       "EXPORT_VAR_AS_FUNCTION",
 684                                                       "FUNCTION");
 685                                         next;
 686                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 687                                         $def .= "int d2i_$2(void);";
 688                                         $def .= "int i2d_$2(void);";
 689                                         # Variant for platforms that do not
 690                                         # have to access globale variables
 691                                         # in shared libraries through functions
 692                                         $def .=
 693                                             "#INFO:"
 694                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 695                                                     .join(',',@current_algorithms).";";
 696                                         $def .= "OPENSSL_EXTERN int $2_it;";
 697                                         $def .=
 698                                             "#INFO:"
 699                                                 .join(',',@current_platforms).":"
 700                                                     .join(',',@current_algorithms).";";
 701                                         # Variant for platforms that have to
 702                                         # access globale variables in shared
 703                                         # libraries through functions
 704                                         &$make_variant("$2_it","$2_it",
 705                                                       "EXPORT_VAR_AS_FUNCTION",
 706                                                       "FUNCTION");
 707                                         next;
 708                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 709                                         $def .= "int $1_free(void);";
 710                                         $def .= "int $1_new(void);";
 711                                         next;
 712                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 713                                         $def .= "int d2i_$2(void);";
 714                                         $def .= "int i2d_$2(void);";
 715                                         $def .= "int $2_free(void);";
 716                                         $def .= "int $2_new(void);";
 717                                         # Variant for platforms that do not
 718                                         # have to access globale variables
 719                                         # in shared libraries through functions
 720                                         $def .=
 721                                             "#INFO:"
 722                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 723                                                     .join(',',@current_algorithms).";";
 724                                         $def .= "OPENSSL_EXTERN int $2_it;";
 725                                         $def .=
 726                                             "#INFO:"
 727                                                 .join(',',@current_platforms).":"
 728                                                     .join(',',@current_algorithms).";";
 729                                         # Variant for platforms that have to
 730                                         # access globale variables in shared
 731                                         # libraries through functions
 732                                         &$make_variant("$2_it","$2_it",
 733                                                       "EXPORT_VAR_AS_FUNCTION",
 734                                                       "FUNCTION");
 735                                         next;
 736                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 737                                         # Variant for platforms that do not
 738                                         # have to access globale variables
 739                                         # in shared libraries through functions
 740                                         $def .=
 741                                             "#INFO:"
 742                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 743                                                     .join(',',@current_algorithms).";";
 744                                         $def .= "OPENSSL_EXTERN int $1_it;";
 745                                         $def .=
 746                                             "#INFO:"
 747                                                 .join(',',@current_platforms).":"
 748                                                     .join(',',@current_algorithms).";";
 749                                         # Variant for platforms that have to
 750                                         # access globale variables in shared
 751                                         # libraries through functions
 752                                         &$make_variant("$1_it","$1_it",
 753                                                       "EXPORT_VAR_AS_FUNCTION",
 754                                                       "FUNCTION");
 755                                         next;
 756                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 757                                         $def .= "int i2d_$1_NDEF(void);";
 758                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 759                                         next;
 760                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 761                                         $def .= "int $1_print_ctx(void);";
 762                                         next;
 763                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 764                                         $def .= "int $2_print_ctx(void);";
 765                                         next;
 766                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 767                                         next;
 768                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 769                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 770                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 771                                         # Things not in Win16
 772                                         $def .=
 773                                             "#INFO:"
 774                                                 .join(',',"!WIN16",@current_platforms).":"
 775                                                     .join(',',@current_algorithms).";";
 776                                         $def .= "int PEM_read_$1(void);";
 777                                         $def .= "int PEM_write_$1(void);";
 778                                         $def .=
 779                                             "#INFO:"
 780                                                 .join(',',@current_platforms).":"
 781                                                     .join(',',@current_algorithms).";";
 782                                         # Things that are everywhere
 783                                         $def .= "int PEM_read_bio_$1(void);";
 784                                         $def .= "int PEM_write_bio_$1(void);";
 785                                         next;
 786                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 787                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 788                                         # Things not in Win16
 789                                         $def .=
 790                                             "#INFO:"
 791                                                 .join(',',"!WIN16",@current_platforms).":"
 792                                                     .join(',',@current_algorithms).";";
 793                                         $def .= "int PEM_write_$1(void);";
 794                                         $def .=
 795                                             "#INFO:"
 796                                                 .join(',',@current_platforms).":"
 797                                                     .join(',',@current_algorithms).";";
 798                                         # Things that are everywhere
 799                                         $def .= "int PEM_write_bio_$1(void);";
 800                                         next;
 801                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 802                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 803                                         # Things not in Win16
 804                                         $def .=
 805                                             "#INFO:"
 806                                                 .join(',',"!WIN16",@current_platforms).":"
 807                                                     .join(',',@current_algorithms).";";
 808                                         $def .= "int PEM_read_$1(void);";
 809                                         $def .=
 810                                             "#INFO:"
 811                                                 .join(',',@current_platforms).":"
 812                                                     .join(',',@current_algorithms).";";
 813                                         # Things that are everywhere
 814                                         $def .= "int PEM_read_bio_$1(void);";
 815                                         next;
 816                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 817                                         # Variant for platforms that do not
 818                                         # have to access globale variables
 819                                         # in shared libraries through functions
 820                                         $def .=
 821                                             "#INFO:"
 822                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 823                                                     .join(',',@current_algorithms).";";
 824                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 825                                         $def .=
 826                                             "#INFO:"
 827                                                 .join(',',@current_platforms).":"
 828                                                     .join(',',@current_algorithms).";";
 829                                         # Variant for platforms that have to
 830                                         # access globale variables in shared
 831                                         # libraries through functions
 832                                         &$make_variant("_shadow_$2","_shadow_$2",
 833                                                       "EXPORT_VAR_AS_FUNCTION",
 834                                                       "FUNCTION");
 835                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 836                                         if (/\{|\/\*|\([^\)]*$/) {
 837                                                 $line = $_;
 838                                         } else {
 839                                                 $def .= $_;
 840                                         }
 841                                 }
 842                         }
 843                 }
 844                 close(IN);
 845
 846                 my $algs;
 847                 my $plays;
 848
 849                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 850                 foreach (split /;/, $def) {
 851                         my $s; my $k = "FUNCTION"; my $p; my $a;
 852                         s/^[\n\s]*//g;
 853                         s/[\n\s]*$//g;
 854                         next if(/\#undef/);
 855                         next if(/typedef\W/);
 856                         next if(/\#define/);
 857
 858                         # Reduce argument lists to empty ()
 859                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 860                         while(/\(.*\)/s) {
 861                                 s/\([^\(\)]+\)/\{\}/gs;
 862                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 863                         }
 864                         # pretend as we didn't use curly braces: {} -> ()
 865                         s/\{\}/\(\)/gs;
 866
 867                         s/STACK_OF\(\)/void/gs;
 868
 869                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 870                         if (/^\#INFO:([^:]*):(.*)$/) {
 871                                 $plats = $1;
 872                                 $algs = $2;
 873                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 874                                 next;
 875                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 876                                 $s = $1;
 877                                 $k = "VARIABLE";
 878                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 879                         } elsif (/TYPEDEF_\w+_OF/s) {
 880                                 next;
 881                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 882                                 $s = $1;                # a function name!
 883                                 print STDERR "DEBUG: found function $s\n" if $debug;
 884                         } elsif (/\(/ and not (/=/)) {
 885                                 print STDERR "File $file: cannot parse: $_;\n";
 886                                 next;
 887                         } else {
 888                                 next;
 889                         }
 890
 891                         $syms{$s} = 1;
 892                         $kind{$s} = $k;
 893
 894                         $p = $plats;
 895                         $a = $algs;
 896                         $a .= ",BF" if($s =~ /EVP_bf/);
 897                         $a .= ",CAST" if($s =~ /EVP_cast/);
 898                         $a .= ",DES" if($s =~ /EVP_des/);
 899                         $a .= ",DSA" if($s =~ /EVP_dss/);
 900                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 901                         $a .= ",MD2" if($s =~ /EVP_md2/);
 902                         $a .= ",MD4" if($s =~ /EVP_md4/);
 903                         $a .= ",MD5" if($s =~ /EVP_md5/);
 904                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 905                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 906                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 907                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 908                         $a .= ",SHA" if($s =~ /EVP_sha/);
 909                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 910                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 911                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 912                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 913
 914                         $platform{$s} =
 915                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 916                         $algorithm{$s} .= ','.$a;
 917
 918                         if (defined($variant{$s})) {
 919                                 foreach $v (split /;/,$variant{$s}) {
 920                                         (my $r, my $p, my $k) = split(/:/,$v);
 921                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 922                                         $syms{$r} = 1;
 923                                         if (!defined($k)) { $k = $kind{$s}; }
 924                                         $kind{$r} = $k."(".$s.")";
 925                                         $algorithm{$r} = $algorithm{$s};
 926                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 927                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 928                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 929                                 }
 930                         }
 931                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 932                 }
 933         }
 934
 935         # Prune the returned symbols
 936
 937         delete $syms{"bn_dump1"};
 938         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 939
 940         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 941         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 942         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 943         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 944
 945         # Info we know about
 946
 947         push @ret, map { $_."\\".&info_string($_,"EXIST",
 948                                               $platform{$_},
 949                                               $kind{$_},
 950                                               $algorithm{$_}) } keys %syms;
 951
 952         if (keys %unknown_algorithms) {
 953                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 954                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 955         }
 956         return(@ret);
 957 }
 958
 959 # Param: string of comma-separated platform-specs.
 960 sub reduce_platforms
 961 {
 962         my ($platforms) = @_;
 963         my $pl = defined($platforms) ? $platforms : "";
 964         my %p = map { $_ => 0 } split /,/, $pl;
 965         my $ret;
 966
 967         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 968             if $debug;
 969         # We do this, because if there's code like the following, it really
 970         # means the function exists in all cases and should therefore be
 971         # everywhere.  By increasing and decreasing, we may attain 0:
 972         #
 973         # ifndef WIN16
 974         #    int foo();
 975         # else
 976         #    int _fat foo();
 977         # endif
 978         foreach $platform (split /,/, $pl) {
 979                 if ($platform =~ /^!(.*)$/) {
 980                         $p{$1}--;
 981                 } else {
 982                         $p{$platform}++;
 983                 }
 984         }
 985         foreach $platform (keys %p) {
 986                 if ($p{$platform} == 0) { delete $p{$platform}; }
 987         }
 988
 989         delete $p{""};
 990
 991         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 992         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 993             if $debug;
 994         return $ret;
 995 }
 996
 997 sub info_string {
 998         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 999
1000         my %a = defined($algorithms) ?
1001             map { $_ => 1 } split /,/, $algorithms : ();
1002         my $k = defined($kind) ? $kind : "FUNCTION";
1003         my $ret;
1004         my $p = &reduce_platforms($platforms);
1005
1006         delete $a{""};
1007
1008         $ret = $exist;
1009         $ret .= ":".$p;
1010         $ret .= ":".$k;
1011         $ret .= ":".join(',',sort keys %a);
1012         return $ret;
1013 }
1014
1015 sub maybe_add_info {
1016         (my $name, *nums, my @symbols) = @_;
1017         my $sym;
1018         my $new_info = 0;
1019         my %syms=();
1020
1021         print STDERR "Updating $name info\n";
1022         foreach $sym (@symbols) {
1023                 (my $s, my $i) = split /\\/, $sym;
1024                 if (defined($nums{$s})) {
1025                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1026                         (my $n, my $dummy) = split /\\/, $nums{$s};
1027                         if (!defined($dummy) || $i ne $dummy) {
1028                                 $nums{$s} = $n."\\".$i;
1029                                 $new_info++;
1030                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1031                         }
1032                 }
1033                 $syms{$s} = 1;
1034         }
1035
1036         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1037         foreach $sym (@s) {
1038                 (my $n, my $i) = split /\\/, $nums{$sym};
1039                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1040                         $new_info++;
1041                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1042                 }
1043         }
1044         if ($new_info) {
1045                 print STDERR "$new_info old symbols got an info update\n";
1046                 if (!$do_rewrite) {
1047                         print STDERR "You should do a rewrite to fix this.\n";
1048                 }
1049         } else {
1050                 print STDERR "No old symbols needed info update\n";
1051         }
1052 }
1053
1054 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1055 sub is_valid
1056 {
1057         my ($keywords_txt,$platforms) = @_;
1058         my (@keywords) = split /,/,$keywords_txt;
1059         my ($falsesum, $truesum) = (0, 1);
1060
1061         # Param: one keyword
1062         sub recognise
1063         {
1064                 my ($keyword,$platforms) = @_;
1065
1066                 if ($platforms) {
1067                         # platforms
1068                         if ($keyword eq "VMS" && $VMS) { return 1; }
1069                         if ($keyword eq "WIN32" && $W32) { return 1; }
1070                         if ($keyword eq "WIN16" && $W16) { return 1; }
1071                         if ($keyword eq "WINNT" && $NT) { return 1; }
1072                         if ($keyword eq "OS2" && $OS2) { return 1; }
1073                         # Special platforms:
1074                         # EXPORT_VAR_AS_FUNCTION means that global variables
1075                         # will be represented as functions.  This currently
1076                         # only happens on VMS-VAX.
1077                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1078                                 return 1;
1079                         }
1080                         return 0;
1081                 } else {
1082                         # algorithms
1083                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1084                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1085                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1086                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1087                         if ($keyword eq "DES" && $no_des) { return 0; }
1088                         if ($keyword eq "BF" && $no_bf) { return 0; }
1089                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1090                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1091                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1092                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1093                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1094                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1095                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1096                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1097                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1098                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1099                         if ($keyword eq "DH" && $no_dh) { return 0; }
1100                         if ($keyword eq "EC" && $no_ec) { return 0; }
1101                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1102                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1103                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1104                         if ($keyword eq "AES" && $no_aes) { return 0; }
1105                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1106                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1107                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1108                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1109                         if ($keyword eq "ERR" && $no_err) { return 0; }
1110                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1111                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1112                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1113                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1114                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1115                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1116                         if ($keyword eq "HW" && $no_hw) { return 0; }
1117                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1118                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1119                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1120                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1121                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1122                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1123                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1124
1125                         # Nothing recognise as true
1126                         return 1;
1127                 }
1128         }
1129
1130         foreach $k (@keywords) {
1131                 if ($k =~ /^!(.*)$/) {
1132                         $falsesum += &recognise($1,$platforms);
1133                 } else {
1134                         $truesum *= &recognise($k,$platforms);
1135                 }
1136         }
1137         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1138         return (!$falsesum) && $truesum;
1139 }
1140
1141 sub print_test_file
1142 {
1143         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1144         my $n = 1; my @e; my @r;
1145         my $sym; my $prev = ""; my $prefSSLeay;
1146
1147         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1148         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1149         @symbols=((sort @e),(sort @r));
1150
1151         foreach $sym (@symbols) {
1152                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1153                 my $v = 0;
1154                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1155                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1156                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1157                 if (!defined($nums{$s})) {
1158                         print STDERR "Warning: $s does not have a number assigned\n"
1159                             if(!$do_update);
1160                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1161                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1162                         if ($prev eq $s2) {
1163                                 print OUT "\t/* The following has already appeared previously */\n";
1164                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1165                         }
1166                         $prev = $s2;    # To warn about duplicates...
1167
1168                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1169                         if ($v) {
1170                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1171                         } else {
1172                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1173                         }
1174                 }
1175         }
1176 }
1177
1178 sub get_version {
1179    local *MF;
1180    my $v = '?';
1181    open MF, 'Makefile' or return $v;
1182    while (<MF>) {
1183      $v = $1, last if /^VERSION=(.*?)\s*$/;
1184    }
1185    close MF;
1186    return $v;
1187 }
1188
1189 sub print_def_file
1190 {
1191         (*OUT,my $name,*nums,my @symbols)=@_;
1192         my $n = 1; my @e; my @r; my @v; my $prev="";
1193         my $liboptions="";
1194         my $libname = $name;
1195         my $http_vendor = 'www.openssl.org/';
1196         my $version = get_version();
1197         my $what = "OpenSSL: implementation of Secure Socket Layer";
1198         my $description = "$what $version, $name - http://$http_vendor";
1199
1200         if ($W32)
1201                 { $libname.="32"; }
1202         elsif ($W16)
1203                 { $libname.="16"; }
1204         elsif ($OS2)
1205                 { # DLL names should not clash on the whole system.
1206                   # However, they should not have any particular relationship
1207                   # to the name of the static library.  Chose descriptive names
1208                   # (must be at most 8 chars).
1209                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1210                   $libname = $translate{$name} || $name;
1211                   $liboptions = <<EOO;
1212 INITINSTANCE
1213 DATA MULTIPLE NONSHARED
1214 EOO
1215                   # Vendor field can't contain colon, drat; so we omit http://
1216                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1217                 }
1218
1219         print OUT <<"EOF";
1220 ;
1221 ; Definition file for the DLL version of the $name library from OpenSSL
1222 ;
1223
1224 LIBRARY         $libname        $liboptions
1225
1226 DESCRIPTION     '$description'
1227
1228 EOF
1229
1230         if ($W16) {
1231                 print <<"EOF";
1232 CODE            PRELOAD MOVEABLE
1233 DATA            PRELOAD MOVEABLE SINGLE
1234
1235 EXETYPE         WINDOWS
1236
1237 HEAPSIZE        4096
1238 STACKSIZE       8192
1239
1240 EOF
1241         }
1242
1243         print "EXPORTS\n";
1244
1245         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1246         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1247         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1248         @symbols=((sort @e),(sort @r), (sort @v));
1249
1250
1251         foreach $sym (@symbols) {
1252                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1253                 my $v = 0;
1254                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1255                 if (!defined($nums{$s})) {
1256                         printf STDERR "Warning: $s does not have a number assigned\n"
1257                             if(!$do_update);
1258                 } else {
1259                         (my $n, my $dummy) = split /\\/, $nums{$s};
1260                         my %pf = ();
1261                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1262                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1263                         if (is_valid($p,1) && is_valid($a,0)) {
1264                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1265                                 if ($prev eq $s2) {
1266                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1267                                 }
1268                                 $prev = $s2;    # To warn about duplicates...
1269                                 if($v && !$OS2) {
1270                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1271                                 } else {
1272                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1273                                 }
1274                         }
1275                 }
1276         }
1277         printf OUT "\n";
1278 }
1279
1280 sub load_numbers
1281 {
1282         my($name)=@_;
1283         my(@a,%ret);
1284
1285         $max_num = 0;
1286         $num_noinfo = 0;
1287         $prev = "";
1288         $prev_cnt = 0;
1289
1290         open(IN,"<$name") || die "unable to open $name:$!\n";
1291         while (<IN>) {
1292                 chop;
1293                 s/#.*$//;
1294                 next if /^\s*$/;
1295                 @a=split;
1296                 if (defined $ret{$a[0]}) {
1297                         # This is actually perfectly OK
1298                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1299                 }
1300                 if ($max_num > $a[1]) {
1301                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1302                 }
1303                 elsif ($max_num == $a[1]) {
1304                         # This is actually perfectly OK
1305                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1306                         if ($a[0] eq $prev) {
1307                                 $prev_cnt++;
1308                                 $a[0] .= "{$prev_cnt}";
1309                         }
1310                 }
1311                 else {
1312                         $prev_cnt = 0;
1313                 }
1314                 if ($#a < 2) {
1315                         # Existence will be proven later, in do_defs
1316                         $ret{$a[0]}=$a[1];
1317                         $num_noinfo++;
1318                 } else {
1319                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1320                 }
1321                 $max_num = $a[1] if $a[1] > $max_num;
1322                 $prev=$a[0];
1323         }
1324         if ($num_noinfo) {
1325                 print STDERR "Warning: $num_noinfo symbols were without info.";
1326                 if ($do_rewrite) {
1327                         printf STDERR "  The rewrite will fix this.\n";
1328                 } else {
1329                         printf STDERR "  You should do a rewrite to fix this.\n";
1330                 }
1331         }
1332         close(IN);
1333         return(%ret);
1334 }
1335
1336 sub parse_number
1337 {
1338         (my $str, my $what) = @_;
1339         (my $n, my $i) = split(/\\/,$str);
1340         if ($what eq "n") {
1341                 return $n;
1342         } else {
1343                 return $i;
1344         }
1345 }
1346
1347 sub rewrite_numbers
1348 {
1349         (*OUT,$name,*nums,@symbols)=@_;
1350         my $thing;
1351
1352         print STDERR "Rewriting $name\n";
1353
1354         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1355         my $r; my %r; my %rsyms;
1356         foreach $r (@r) {
1357                 (my $s, my $i) = split /\\/, $r;
1358                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1359                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1360                 $r{$a} = $s."\\".$i;
1361                 $rsyms{$s} = 1;
1362         }
1363
1364         my %syms = ();
1365         foreach $_ (@symbols) {
1366                 (my $n, my $i) = split /\\/;
1367                 $syms{$n} = 1;
1368         }
1369
1370         my @s=sort {
1371             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1372             || $a cmp $b
1373         } keys %nums;
1374         foreach $sym (@s) {
1375                 (my $n, my $i) = split /\\/, $nums{$sym};
1376                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1377                 next if defined($rsyms{$sym});
1378                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1379                 $i="NOEXIST::FUNCTION:"
1380                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1381                 my $s2 = $sym;
1382                 $s2 =~ s/\{[0-9]+\}$//;
1383                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1384                 if (exists $r{$sym}) {
1385                         (my $s, $i) = split /\\/,$r{$sym};
1386                         my $s2 = $s;
1387                         $s2 =~ s/\{[0-9]+\}$//;
1388                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1389                 }
1390         }
1391 }
1392
1393 sub update_numbers
1394 {
1395         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1396         my $new_syms = 0;
1397
1398         print STDERR "Updating $name numbers\n";
1399
1400         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1401         my $r; my %r; my %rsyms;
1402         foreach $r (@r) {
1403                 (my $s, my $i) = split /\\/, $r;
1404                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1405                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1406                 $r{$a} = $s."\\".$i;
1407                 $rsyms{$s} = 1;
1408         }
1409
1410         foreach $sym (@symbols) {
1411                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1412                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1413                 next if defined($rsyms{$sym});
1414                 die "ERROR: Symbol $sym had no info attached to it."
1415                     if $i eq "";
1416                 if (!exists $nums{$s}) {
1417                         $new_syms++;
1418                         my $s2 = $s;
1419                         $s2 =~ s/\{[0-9]+\}$//;
1420                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1421                         if (exists $r{$s}) {
1422                                 ($s, $i) = split /\\/,$r{$s};
1423                                 $s =~ s/\{[0-9]+\}$//;
1424                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1425                         }
1426                 }
1427         }
1428         if($new_syms) {
1429                 print STDERR "$new_syms New symbols added\n";
1430         } else {
1431                 print STDERR "No New symbols Added\n";
1432         }
1433 }
1434
1435 sub check_existing
1436 {
1437         (*nums, my @symbols)=@_;
1438         my %existing; my @remaining;
1439         @remaining=();
1440         foreach $sym (@symbols) {
1441                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1442                 $existing{$s}=1;
1443         }
1444         foreach $sym (keys %nums) {
1445                 if (!exists $existing{$sym}) {
1446                         push @remaining, $sym;
1447                 }
1448         }
1449         if(@remaining) {
1450                 print STDERR "The following symbols do not seem to exist:\n";
1451                 foreach $sym (@remaining) {
1452                         print STDERR "\t",$sym,"\n";
1453                 }
1454         }
1455 }
1456