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", "ZLIB" );
  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                          # CMS
 103                          "CMS",
 104                          # CryptoAPI Engine
 105                          "CAPIENG",
 106                          # Deprecated functions
 107                          "DEPRECATED" );
 108
 109 my $options="";
 110 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 111 while(<IN>) {
 112     $options=$1 if (/^OPTIONS=(.*)$/);
 113 }
 114 close(IN);
 115
 116 # The following ciphers may be excluded (by Configure). This means functions
 117 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 118 # in directory xxx is ignored.
 119 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 120 my $no_cast; my $no_whirlpool; my $no_camellia; my $no_seed;
 121 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 122 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 123 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
 124 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
 125 my $no_rfc3779; my $no_psk; my $no_tlsext; my $no_cms; my $no_capieng;
 126
 127 my $zlib;
 128
 129
 130 foreach (@ARGV, split(/ /, $options))
 131         {
 132         $debug=1 if $_ eq "debug";
 133         $W32=1 if $_ eq "32";
 134         $W16=1 if $_ eq "16";
 135         if($_ eq "NT") {
 136                 $W32 = 1;
 137                 $NT = 1;
 138         }
 139         if ($_ eq "VMS-VAX") {
 140                 $VMS=1;
 141                 $VMSVAX=1;
 142         }
 143         if ($_ eq "VMS-Alpha") {
 144                 $VMS=1;
 145                 $VMSAlpha=1;
 146         }
 147         $VMS=1 if $_ eq "VMS";
 148         $OS2=1 if $_ eq "OS2";
 149         if ($_ eq "zlib" || $_ eq "zlib-dynamic"
 150                          || $_ eq "enable-zlib-dynamic") {
 151                 $zlib = 1;
 152         }
 153
 154
 155         $do_ssl=1 if $_ eq "ssleay";
 156         if ($_ eq "ssl") {
 157                 $do_ssl=1;
 158                 $libname=$_
 159         }
 160         $do_crypto=1 if $_ eq "libeay";
 161         if ($_ eq "crypto") {
 162                 $do_crypto=1;
 163                 $libname=$_;
 164         }
 165         $no_static_engine=1 if $_ eq "no-static-engine";
 166         $no_static_engine=0 if $_ eq "enable-static-engine";
 167         $do_update=1 if $_ eq "update";
 168         $do_rewrite=1 if $_ eq "rewrite";
 169         $do_ctest=1 if $_ eq "ctest";
 170         $do_ctestall=1 if $_ eq "ctestall";
 171         $do_checkexist=1 if $_ eq "exist";
 172         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 173
 174         if    (/^no-rc2$/)      { $no_rc2=1; }
 175         elsif (/^no-rc4$/)      { $no_rc4=1; }
 176         elsif (/^no-rc5$/)      { $no_rc5=1; }
 177         elsif (/^no-idea$/)     { $no_idea=1; }
 178         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 179         elsif (/^no-bf$/)       { $no_bf=1; }
 180         elsif (/^no-cast$/)     { $no_cast=1; }
 181         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
 182         elsif (/^no-md2$/)      { $no_md2=1; }
 183         elsif (/^no-md4$/)      { $no_md4=1; }
 184         elsif (/^no-md5$/)      { $no_md5=1; }
 185         elsif (/^no-sha$/)      { $no_sha=1; }
 186         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 187         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 188         elsif (/^no-rsa$/)      { $no_rsa=1; }
 189         elsif (/^no-dsa$/)      { $no_dsa=1; }
 190         elsif (/^no-dh$/)       { $no_dh=1; }
 191         elsif (/^no-ec$/)       { $no_ec=1; }
 192         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 193         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 194         elsif (/^no-hmac$/)     { $no_hmac=1; }
 195         elsif (/^no-aes$/)      { $no_aes=1; }
 196         elsif (/^no-camellia$/) { $no_camellia=1; }
 197         elsif (/^no-seed$/)     { $no_seed=1; }
 198         elsif (/^no-evp$/)      { $no_evp=1; }
 199         elsif (/^no-lhash$/)    { $no_lhash=1; }
 200         elsif (/^no-stack$/)    { $no_stack=1; }
 201         elsif (/^no-err$/)      { $no_err=1; }
 202         elsif (/^no-buffer$/)   { $no_buffer=1; }
 203         elsif (/^no-bio$/)      { $no_bio=1; }
 204         #elsif (/^no-locking$/) { $no_locking=1; }
 205         elsif (/^no-comp$/)     { $no_comp=1; }
 206         elsif (/^no-dso$/)      { $no_dso=1; }
 207         elsif (/^no-krb5$/)     { $no_krb5=1; }
 208         elsif (/^no-engine$/)   { $no_engine=1; }
 209         elsif (/^no-hw$/)       { $no_hw=1; }
 210         elsif (/^no-gmp$/)      { $no_gmp=1; }
 211         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 212         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
 213         elsif (/^no-cms$/)      { $no_cms=1; }
 214         elsif (/^no-capieng$/)  { $no_capieng=1; }
 215         }
 216
 217
 218 if (!$libname) {
 219         if ($do_ssl) {
 220                 $libname="SSLEAY";
 221         }
 222         if ($do_crypto) {
 223                 $libname="LIBEAY";
 224         }
 225 }
 226
 227 # If no platform is given, assume WIN32
 228 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 229         $W32 = 1;
 230 }
 231
 232 # Add extra knowledge
 233 if ($W16) {
 234         $no_fp_api=1;
 235 }
 236
 237 if (!$do_ssl && !$do_crypto)
 238         {
 239         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 240         exit(1);
 241         }
 242
 243 %ssl_list=&load_numbers($ssl_num);
 244 $max_ssl = $max_num;
 245 %crypto_list=&load_numbers($crypto_num);
 246 $max_crypto = $max_num;
 247
 248 my $ssl="ssl/ssl.h";
 249 $ssl.=" ssl/kssl.h";
 250 $ssl.=" ssl/tls1.h";
 251
 252 my $crypto ="crypto/crypto.h";
 253 $crypto.=" crypto/o_dir.h";
 254 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 255 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 256 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 257 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 258 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 259 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 260 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 261 $crypto.=" crypto/whrlpool/whrlpool.h" ;
 262 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 263 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 264 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 265 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 266 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 267 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 268 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 269 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 270 $crypto.=" crypto/seed/seed.h"; # unless $no_seed;
 271
 272 $crypto.=" crypto/bn/bn.h";
 273 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 274 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 275 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 276 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 277 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 278 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 279 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 280
 281 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 282 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 283 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 284 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 285 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 286 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 287 $crypto.=" crypto/conf/conf.h";
 288 $crypto.=" crypto/txt_db/txt_db.h";
 289
 290 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 291 $crypto.=" crypto/objects/objects.h";
 292 $crypto.=" crypto/pem/pem.h";
 293 #$crypto.=" crypto/meth/meth.h";
 294 $crypto.=" crypto/asn1/asn1.h";
 295 $crypto.=" crypto/asn1/asn1t.h";
 296 $crypto.=" crypto/asn1/asn1_mac.h";
 297 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 298 $crypto.=" crypto/pkcs7/pkcs7.h";
 299 $crypto.=" crypto/pkcs12/pkcs12.h";
 300 $crypto.=" crypto/x509/x509.h";
 301 $crypto.=" crypto/x509/x509_vfy.h";
 302 $crypto.=" crypto/x509v3/x509v3.h";
 303 $crypto.=" crypto/ts/ts.h";
 304 $crypto.=" crypto/rand/rand.h";
 305 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 306 $crypto.=" crypto/ocsp/ocsp.h";
 307 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 308 $crypto.=" crypto/krb5/krb5_asn.h";
 309 #$crypto.=" crypto/store/store.h";
 310 $crypto.=" crypto/pqueue/pqueue.h";
 311 $crypto.=" crypto/cms/cms.h";
 312
 313 my $symhacks="crypto/symhacks.h";
 314
 315 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 316 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 317
 318 if ($do_update) {
 319
 320 if ($do_ssl == 1) {
 321
 322         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 323         if ($do_rewrite == 1) {
 324                 open(OUT, ">$ssl_num");
 325                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 326         } else {
 327                 open(OUT, ">>$ssl_num");
 328         }
 329         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 330         close OUT;
 331 }
 332
 333 if($do_crypto == 1) {
 334
 335         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 336         if ($do_rewrite == 1) {
 337                 open(OUT, ">$crypto_num");
 338                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 339         } else {
 340                 open(OUT, ">>$crypto_num");
 341         }
 342         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 343         close OUT;
 344 }
 345
 346 } elsif ($do_checkexist) {
 347         &check_existing(*ssl_list, @ssl_symbols)
 348                 if $do_ssl == 1;
 349         &check_existing(*crypto_list, @crypto_symbols)
 350                 if $do_crypto == 1;
 351 } elsif ($do_ctest || $do_ctestall) {
 352
 353         print <<"EOF";
 354
 355 /* Test file to check all DEF file symbols are present by trying
 356  * to link to all of them. This is *not* intended to be run!
 357  */
 358
 359 int main()
 360 {
 361 EOF
 362         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 363                 if $do_ssl == 1;
 364
 365         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 366                 if $do_crypto == 1;
 367
 368         print "}\n";
 369
 370 } else {
 371
 372         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 373                 if $do_ssl == 1;
 374
 375         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 376                 if $do_crypto == 1;
 377
 378 }
 379
 380
 381 sub do_defs
 382 {
 383         my($name,$files,$symhacksfile)=@_;
 384         my $file;
 385         my @ret;
 386         my %syms;
 387         my %platform;           # For anything undefined, we assume ""
 388         my %kind;               # For anything undefined, we assume "FUNCTION"
 389         my %algorithm;          # For anything undefined, we assume ""
 390         my %variant;
 391         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 392                                 # is the same name as the original.
 393         my $cpp;
 394         my %unknown_algorithms = ();
 395
 396         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 397                 {
 398                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 399                 open(IN,"<$file") || die "unable to open $file:$!\n";
 400                 my $line = "", my $def= "";
 401                 my %tag = (
 402                         (map { $_ => 0 } @known_platforms),
 403                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 404                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 405                         NOPROTO         => 0,
 406                         PERL5           => 0,
 407                         _WINDLL         => 0,
 408                         CONST_STRICT    => 0,
 409                         TRUE            => 1,
 410                 );
 411                 my $symhacking = $file eq $symhacksfile;
 412                 my @current_platforms = ();
 413                 my @current_algorithms = ();
 414
 415                 # params: symbol, alias, platforms, kind
 416                 # The reason to put this subroutine in a variable is that
 417                 # it will otherwise create it's own, unshared, version of
 418                 # %tag and %variant...
 419                 my $make_variant = sub
 420                 {
 421                         my ($s, $a, $p, $k) = @_;
 422                         my ($a1, $a2);
 423
 424                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 425                         if (defined($p))
 426                         {
 427                                 $a1 = join(",",$p,
 428                                            grep(!/^$/,
 429                                                 map { $tag{$_} == 1 ? $_ : "" }
 430                                                 @known_platforms));
 431                         }
 432                         else
 433                         {
 434                                 $a1 = join(",",
 435                                            grep(!/^$/,
 436                                                 map { $tag{$_} == 1 ? $_ : "" }
 437                                                 @known_platforms));
 438                         }
 439                         $a2 = join(",",
 440                                    grep(!/^$/,
 441                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 442                                         @known_ossl_platforms));
 443                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 444                         if ($a1 eq "") { $a1 = $a2; }
 445                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 446                         if ($a eq $s)
 447                         {
 448                                 if (!defined($variant_cnt{$s}))
 449                                 {
 450                                         $variant_cnt{$s} = 0;
 451                                 }
 452                                 $variant_cnt{$s}++;
 453                                 $a .= "{$variant_cnt{$s}}";
 454                         }
 455                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 456                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 457                         if (!grep(/^$togrep$/,
 458                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 459                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 460                                 $variant{$s} .= $toadd;
 461                         }
 462                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 463                 };
 464
 465                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 466                 while(<IN>) {
 467                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 468                                 {
 469                                 undef @tag;
 470                                 last;
 471                                 }
 472                         if ($line ne '') {
 473                                 $_ = $line . $_;
 474                                 $line = '';
 475                         }
 476
 477                         if (/\\$/) {
 478                                 chomp; # remove eol
 479                                 chop; # remove ending backslash
 480                                 $line = $_;
 481                                 next;
 482                         }
 483
 484                         if(/\/\*/) {
 485                                 if (not /\*\//) {       # multiline comment...
 486                                         $line = $_;     # ... just accumulate
 487                                         next;
 488                                 } else {
 489                                         s/\/\*.*?\*\///gs;# wipe it
 490                                 }
 491                         }
 492
 493                         if ($cpp) {
 494                                 $cpp++ if /^#\s*if/;
 495                                 $cpp-- if /^#\s*endif/;
 496                                 next;
 497                         }
 498                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 499
 500                         s/{[^{}]*}//gs;                      # ignore {} blocks
 501                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 502                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 503                         if (/^\#\s*ifndef\s+(.*)/) {
 504                                 push(@tag,"-");
 505                                 push(@tag,$1);
 506                                 $tag{$1}=-1;
 507                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 508                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 509                                 push(@tag,"-");
 510                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 511                                         my $tmp_1 = $1;
 512                                         my $tmp_;
 513                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 514                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 515                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 516                                                 push(@tag,$1);
 517                                                 $tag{$1}=-1;
 518                                         }
 519                                 } else {
 520                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 521                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 522                                         push(@tag,$1);
 523                                         $tag{$1}=-1;
 524                                 }
 525                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 526                                 push(@tag,"-");
 527                                 push(@tag,$1);
 528                                 $tag{$1}=1;
 529                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 530                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 531                                 push(@tag,"-");
 532                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 533                                         my $tmp_1 = $1;
 534                                         my $tmp_;
 535                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 536                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 537                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 538                                                 push(@tag,$1);
 539                                                 $tag{$1}=1;
 540                                         }
 541                                 } else {
 542                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 543                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 544                                         push(@tag,$1);
 545                                         $tag{$1}=1;
 546                                 }
 547                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 548                                 my $tag_i = $#tag;
 549                                 while($tag[$tag_i] ne "-") {
 550                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 551                                                 $tag{$tag[$tag_i]}=2;
 552                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 553                                         }
 554                                         $tag_i--;
 555                                 }
 556                         } elsif (/^\#\s*endif/) {
 557                                 my $tag_i = $#tag;
 558                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 559                                         my $t=$tag[$tag_i];
 560                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 561                                         if ($tag{$t}==2) {
 562                                                 $tag{$t}=-1;
 563                                         } else {
 564                                                 $tag{$t}=0;
 565                                         }
 566                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 567                                         pop(@tag);
 568                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 569                                                 $t=$1;
 570                                         } else {
 571                                                 $t="";
 572                                         }
 573                                         if ($t ne ""
 574                                             && !grep(/^$t$/, @known_algorithms)) {
 575                                                 $unknown_algorithms{$t} = 1;
 576                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 577                                         }
 578                                         $tag_i--;
 579                                 }
 580                                 pop(@tag);
 581                         } elsif (/^\#\s*else/) {
 582                                 my $tag_i = $#tag;
 583                                 while($tag[$tag_i] ne "-") {
 584                                         my $t=$tag[$tag_i];
 585                                         $tag{$t}= -$tag{$t};
 586                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 587                                         $tag_i--;
 588                                 }
 589                         } elsif (/^\#\s*if\s+1/) {
 590                                 push(@tag,"-");
 591                                 # Dummy tag
 592                                 push(@tag,"TRUE");
 593                                 $tag{"TRUE"}=1;
 594                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 595                         } elsif (/^\#\s*if\s+0/) {
 596                                 push(@tag,"-");
 597                                 # Dummy tag
 598                                 push(@tag,"TRUE");
 599                                 $tag{"TRUE"}=-1;
 600                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 601                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 602                                  && $symhacking && $tag{'TRUE'} != -1) {
 603                                 # This is for aliasing.  When we find an alias,
 604                                 # we have to invert
 605                                 &$make_variant($1,$2);
 606                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 607                         }
 608                         if (/^\#/) {
 609                                 @current_platforms =
 610                                     grep(!/^$/,
 611                                          map { $tag{$_} == 1 ? $_ :
 612                                                    $tag{$_} == -1 ? "!".$_  : "" }
 613                                          @known_platforms);
 614                                 push @current_platforms
 615                                     , grep(!/^$/,
 616                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 617                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 618                                            @known_ossl_platforms);
 619                                 @current_algorithms =
 620                                     grep(!/^$/,
 621                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 622                                          @known_algorithms);
 623                                 $def .=
 624                                     "#INFO:"
 625                                         .join(',',@current_platforms).":"
 626                                             .join(',',@current_algorithms).";";
 627                                 next;
 628                         }
 629                         if ($tag{'TRUE'} != -1) {
 630                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 631                                         next;
 632                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 633                                         $def .= "int d2i_$3(void);";
 634                                         $def .= "int i2d_$3(void);";
 635                                         # Variant for platforms that do not
 636                                         # have to access globale variables
 637                                         # in shared libraries through functions
 638                                         $def .=
 639                                             "#INFO:"
 640                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 641                                                     .join(',',@current_algorithms).";";
 642                                         $def .= "OPENSSL_EXTERN int $2_it;";
 643                                         $def .=
 644                                             "#INFO:"
 645                                                 .join(',',@current_platforms).":"
 646                                                     .join(',',@current_algorithms).";";
 647                                         # Variant for platforms that have to
 648                                         # access globale variables in shared
 649                                         # libraries through functions
 650                                         &$make_variant("$2_it","$2_it",
 651                                                       "EXPORT_VAR_AS_FUNCTION",
 652                                                       "FUNCTION");
 653                                         next;
 654                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 655                                         $def .= "int d2i_$3(void);";
 656                                         $def .= "int i2d_$3(void);";
 657                                         $def .= "int $3_free(void);";
 658                                         $def .= "int $3_new(void);";
 659                                         # Variant for platforms that do not
 660                                         # have to access globale variables
 661                                         # in shared libraries through functions
 662                                         $def .=
 663                                             "#INFO:"
 664                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 665                                                     .join(',',@current_algorithms).";";
 666                                         $def .= "OPENSSL_EXTERN int $2_it;";
 667                                         $def .=
 668                                             "#INFO:"
 669                                                 .join(',',@current_platforms).":"
 670                                                     .join(',',@current_algorithms).";";
 671                                         # Variant for platforms that have to
 672                                         # access globale variables in shared
 673                                         # libraries through functions
 674                                         &$make_variant("$2_it","$2_it",
 675                                                       "EXPORT_VAR_AS_FUNCTION",
 676                                                       "FUNCTION");
 677                                         next;
 678                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 679                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 680                                         $def .= "int d2i_$1(void);";
 681                                         $def .= "int i2d_$1(void);";
 682                                         $def .= "int $1_free(void);";
 683                                         $def .= "int $1_new(void);";
 684                                         # Variant for platforms that do not
 685                                         # have to access globale variables
 686                                         # in shared libraries through functions
 687                                         $def .=
 688                                             "#INFO:"
 689                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 690                                                     .join(',',@current_algorithms).";";
 691                                         $def .= "OPENSSL_EXTERN int $1_it;";
 692                                         $def .=
 693                                             "#INFO:"
 694                                                 .join(',',@current_platforms).":"
 695                                                     .join(',',@current_algorithms).";";
 696                                         # Variant for platforms that have to
 697                                         # access globale variables in shared
 698                                         # libraries through functions
 699                                         &$make_variant("$1_it","$1_it",
 700                                                       "EXPORT_VAR_AS_FUNCTION",
 701                                                       "FUNCTION");
 702                                         next;
 703                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 704                                         $def .= "int d2i_$2(void);";
 705                                         $def .= "int i2d_$2(void);";
 706                                         # Variant for platforms that do not
 707                                         # have to access globale variables
 708                                         # in shared libraries through functions
 709                                         $def .=
 710                                             "#INFO:"
 711                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 712                                                     .join(',',@current_algorithms).";";
 713                                         $def .= "OPENSSL_EXTERN int $2_it;";
 714                                         $def .=
 715                                             "#INFO:"
 716                                                 .join(',',@current_platforms).":"
 717                                                     .join(',',@current_algorithms).";";
 718                                         # Variant for platforms that have to
 719                                         # access globale variables in shared
 720                                         # libraries through functions
 721                                         &$make_variant("$2_it","$2_it",
 722                                                       "EXPORT_VAR_AS_FUNCTION",
 723                                                       "FUNCTION");
 724                                         next;
 725                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 726                                         $def .= "int $1_free(void);";
 727                                         $def .= "int $1_new(void);";
 728                                         next;
 729                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 730                                         $def .= "int d2i_$2(void);";
 731                                         $def .= "int i2d_$2(void);";
 732                                         $def .= "int $2_free(void);";
 733                                         $def .= "int $2_new(void);";
 734                                         # Variant for platforms that do not
 735                                         # have to access globale variables
 736                                         # in shared libraries through functions
 737                                         $def .=
 738                                             "#INFO:"
 739                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 740                                                     .join(',',@current_algorithms).";";
 741                                         $def .= "OPENSSL_EXTERN int $2_it;";
 742                                         $def .=
 743                                             "#INFO:"
 744                                                 .join(',',@current_platforms).":"
 745                                                     .join(',',@current_algorithms).";";
 746                                         # Variant for platforms that have to
 747                                         # access globale variables in shared
 748                                         # libraries through functions
 749                                         &$make_variant("$2_it","$2_it",
 750                                                       "EXPORT_VAR_AS_FUNCTION",
 751                                                       "FUNCTION");
 752                                         next;
 753                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 754                                         # Variant for platforms that do not
 755                                         # have to access globale variables
 756                                         # in shared libraries through functions
 757                                         $def .=
 758                                             "#INFO:"
 759                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 760                                                     .join(',',@current_algorithms).";";
 761                                         $def .= "OPENSSL_EXTERN int $1_it;";
 762                                         $def .=
 763                                             "#INFO:"
 764                                                 .join(',',@current_platforms).":"
 765                                                     .join(',',@current_algorithms).";";
 766                                         # Variant for platforms that have to
 767                                         # access globale variables in shared
 768                                         # libraries through functions
 769                                         &$make_variant("$1_it","$1_it",
 770                                                       "EXPORT_VAR_AS_FUNCTION",
 771                                                       "FUNCTION");
 772                                         next;
 773                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 774                                         $def .= "int i2d_$1_NDEF(void);";
 775                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 776                                         next;
 777                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 778                                         $def .= "int $1_print_ctx(void);";
 779                                         next;
 780                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 781                                         $def .= "int $2_print_ctx(void);";
 782                                         next;
 783                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 784                                         next;
 785                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 786                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 787                                          /^DECLARE_PEM_rw_const\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_read_$1(void);";
 794                                         $def .= "int PEM_write_$1(void);";
 795                                         $def .=
 796                                             "#INFO:"
 797                                                 .join(',',@current_platforms).":"
 798                                                     .join(',',@current_algorithms).";";
 799                                         # Things that are everywhere
 800                                         $def .= "int PEM_read_bio_$1(void);";
 801                                         $def .= "int PEM_write_bio_$1(void);";
 802                                         next;
 803                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 804                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 805                                         # Things not in Win16
 806                                         $def .=
 807                                             "#INFO:"
 808                                                 .join(',',"!WIN16",@current_platforms).":"
 809                                                     .join(',',@current_algorithms).";";
 810                                         $def .= "int PEM_write_$1(void);";
 811                                         $def .=
 812                                             "#INFO:"
 813                                                 .join(',',@current_platforms).":"
 814                                                     .join(',',@current_algorithms).";";
 815                                         # Things that are everywhere
 816                                         $def .= "int PEM_write_bio_$1(void);";
 817                                         next;
 818                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 819                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 820                                         # Things not in Win16
 821                                         $def .=
 822                                             "#INFO:"
 823                                                 .join(',',"!WIN16",@current_platforms).":"
 824                                                     .join(',',@current_algorithms).";";
 825                                         $def .= "int PEM_read_$1(void);";
 826                                         $def .=
 827                                             "#INFO:"
 828                                                 .join(',',@current_platforms).":"
 829                                                     .join(',',@current_algorithms).";";
 830                                         # Things that are everywhere
 831                                         $def .= "int PEM_read_bio_$1(void);";
 832                                         next;
 833                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 834                                         # Variant for platforms that do not
 835                                         # have to access globale variables
 836                                         # in shared libraries through functions
 837                                         $def .=
 838                                             "#INFO:"
 839                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 840                                                     .join(',',@current_algorithms).";";
 841                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 842                                         $def .=
 843                                             "#INFO:"
 844                                                 .join(',',@current_platforms).":"
 845                                                     .join(',',@current_algorithms).";";
 846                                         # Variant for platforms that have to
 847                                         # access globale variables in shared
 848                                         # libraries through functions
 849                                         &$make_variant("_shadow_$2","_shadow_$2",
 850                                                       "EXPORT_VAR_AS_FUNCTION",
 851                                                       "FUNCTION");
 852                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 853                                         if (/\{|\/\*|\([^\)]*$/) {
 854                                                 $line = $_;
 855                                         } else {
 856                                                 $def .= $_;
 857                                         }
 858                                 }
 859                         }
 860                 }
 861                 close(IN);
 862
 863                 my $algs;
 864                 my $plays;
 865
 866                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 867                 foreach (split /;/, $def) {
 868                         my $s; my $k = "FUNCTION"; my $p; my $a;
 869                         s/^[\n\s]*//g;
 870                         s/[\n\s]*$//g;
 871                         next if(/\#undef/);
 872                         next if(/typedef\W/);
 873                         next if(/\#define/);
 874
 875                         # Reduce argument lists to empty ()
 876                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 877                         while(/\(.*\)/s) {
 878                                 s/\([^\(\)]+\)/\{\}/gs;
 879                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 880                         }
 881                         # pretend as we didn't use curly braces: {} -> ()
 882                         s/\{\}/\(\)/gs;
 883
 884                         s/STACK_OF\(\)/void/gs;
 885                         s/LHASH_OF\(\)/void/gs;
 886
 887                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 888                         if (/^\#INFO:([^:]*):(.*)$/) {
 889                                 $plats = $1;
 890                                 $algs = $2;
 891                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 892                                 next;
 893                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 894                                 $s = $1;
 895                                 $k = "VARIABLE";
 896                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 897                         } elsif (/TYPEDEF_\w+_OF/s) {
 898                                 next;
 899                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 900                                 $s = $1;                # a function name!
 901                                 print STDERR "DEBUG: found function $s\n" if $debug;
 902                         } elsif (/\(/ and not (/=/)) {
 903                                 print STDERR "File $file: cannot parse: $_;\n";
 904                                 next;
 905                         } else {
 906                                 next;
 907                         }
 908
 909                         $syms{$s} = 1;
 910                         $kind{$s} = $k;
 911
 912                         $p = $plats;
 913                         $a = $algs;
 914                         $a .= ",BF" if($s =~ /EVP_bf/);
 915                         $a .= ",CAST" if($s =~ /EVP_cast/);
 916                         $a .= ",DES" if($s =~ /EVP_des/);
 917                         $a .= ",DSA" if($s =~ /EVP_dss/);
 918                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 919                         $a .= ",MD2" if($s =~ /EVP_md2/);
 920                         $a .= ",MD4" if($s =~ /EVP_md4/);
 921                         $a .= ",MD5" if($s =~ /EVP_md5/);
 922                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 923                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 924                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 925                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 926                         $a .= ",SHA" if($s =~ /EVP_sha/);
 927                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 928                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 929                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 930                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 931
 932                         $platform{$s} =
 933                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 934                         $algorithm{$s} .= ','.$a;
 935
 936                         if (defined($variant{$s})) {
 937                                 foreach $v (split /;/,$variant{$s}) {
 938                                         (my $r, my $p, my $k) = split(/:/,$v);
 939                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 940                                         $syms{$r} = 1;
 941                                         if (!defined($k)) { $k = $kind{$s}; }
 942                                         $kind{$r} = $k."(".$s.")";
 943                                         $algorithm{$r} = $algorithm{$s};
 944                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 945                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 946                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 947                                 }
 948                         }
 949                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 950                 }
 951         }
 952
 953         # Prune the returned symbols
 954
 955         delete $syms{"bn_dump1"};
 956         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 957
 958         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 959         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 960         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 961         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 962
 963         # Info we know about
 964
 965         push @ret, map { $_."\\".&info_string($_,"EXIST",
 966                                               $platform{$_},
 967                                               $kind{$_},
 968                                               $algorithm{$_}) } keys %syms;
 969
 970         if (keys %unknown_algorithms) {
 971                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 972                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 973         }
 974         return(@ret);
 975 }
 976
 977 # Param: string of comma-separated platform-specs.
 978 sub reduce_platforms
 979 {
 980         my ($platforms) = @_;
 981         my $pl = defined($platforms) ? $platforms : "";
 982         my %p = map { $_ => 0 } split /,/, $pl;
 983         my $ret;
 984
 985         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 986             if $debug;
 987         # We do this, because if there's code like the following, it really
 988         # means the function exists in all cases and should therefore be
 989         # everywhere.  By increasing and decreasing, we may attain 0:
 990         #
 991         # ifndef WIN16
 992         #    int foo();
 993         # else
 994         #    int _fat foo();
 995         # endif
 996         foreach $platform (split /,/, $pl) {
 997                 if ($platform =~ /^!(.*)$/) {
 998                         $p{$1}--;
 999                 } else {
1000                         $p{$platform}++;
1001                 }
1002         }
1003         foreach $platform (keys %p) {
1004                 if ($p{$platform} == 0) { delete $p{$platform}; }
1005         }
1006
1007         delete $p{""};
1008
1009         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1010         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1011             if $debug;
1012         return $ret;
1013 }
1014
1015 sub info_string {
1016         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1017
1018         my %a = defined($algorithms) ?
1019             map { $_ => 1 } split /,/, $algorithms : ();
1020         my $k = defined($kind) ? $kind : "FUNCTION";
1021         my $ret;
1022         my $p = &reduce_platforms($platforms);
1023
1024         delete $a{""};
1025
1026         $ret = $exist;
1027         $ret .= ":".$p;
1028         $ret .= ":".$k;
1029         $ret .= ":".join(',',sort keys %a);
1030         return $ret;
1031 }
1032
1033 sub maybe_add_info {
1034         (my $name, *nums, my @symbols) = @_;
1035         my $sym;
1036         my $new_info = 0;
1037         my %syms=();
1038
1039         print STDERR "Updating $name info\n";
1040         foreach $sym (@symbols) {
1041                 (my $s, my $i) = split /\\/, $sym;
1042                 if (defined($nums{$s})) {
1043                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1044                         (my $n, my $dummy) = split /\\/, $nums{$s};
1045                         if (!defined($dummy) || $i ne $dummy) {
1046                                 $nums{$s} = $n."\\".$i;
1047                                 $new_info++;
1048                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1049                         }
1050                 }
1051                 $syms{$s} = 1;
1052         }
1053
1054         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1055         foreach $sym (@s) {
1056                 (my $n, my $i) = split /\\/, $nums{$sym};
1057                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1058                         $new_info++;
1059                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1060                 }
1061         }
1062         if ($new_info) {
1063                 print STDERR "$new_info old symbols got an info update\n";
1064                 if (!$do_rewrite) {
1065                         print STDERR "You should do a rewrite to fix this.\n";
1066                 }
1067         } else {
1068                 print STDERR "No old symbols needed info update\n";
1069         }
1070 }
1071
1072 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1073 sub is_valid
1074 {
1075         my ($keywords_txt,$platforms) = @_;
1076         my (@keywords) = split /,/,$keywords_txt;
1077         my ($falsesum, $truesum) = (0, 1);
1078
1079         # Param: one keyword
1080         sub recognise
1081         {
1082                 my ($keyword,$platforms) = @_;
1083
1084                 if ($platforms) {
1085                         # platforms
1086                         if ($keyword eq "VMS" && $VMS) { return 1; }
1087                         if ($keyword eq "WIN32" && $W32) { return 1; }
1088                         if ($keyword eq "WIN16" && $W16) { return 1; }
1089                         if ($keyword eq "WINNT" && $NT) { return 1; }
1090                         if ($keyword eq "OS2" && $OS2) { return 1; }
1091                         # Special platforms:
1092                         # EXPORT_VAR_AS_FUNCTION means that global variables
1093                         # will be represented as functions.  This currently
1094                         # only happens on VMS-VAX.
1095                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1096                                 return 1;
1097                         }
1098                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1099                         return 0;
1100                 } else {
1101                         # algorithms
1102                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1103                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1104                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1105                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1106                         if ($keyword eq "DES" && $no_des) { return 0; }
1107                         if ($keyword eq "BF" && $no_bf) { return 0; }
1108                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1109                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1110                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1111                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1112                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1113                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1114                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1115                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1116                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1117                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1118                         if ($keyword eq "DH" && $no_dh) { return 0; }
1119                         if ($keyword eq "EC" && $no_ec) { return 0; }
1120                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1121                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1122                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1123                         if ($keyword eq "AES" && $no_aes) { return 0; }
1124                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1125                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1126                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1127                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1128                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1129                         if ($keyword eq "ERR" && $no_err) { return 0; }
1130                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1131                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1132                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1133                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1134                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1135                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1136                         if ($keyword eq "HW" && $no_hw) { return 0; }
1137                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1138                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1139                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1140                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1141                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1142                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1143                         if ($keyword eq "CMS" && $no_cms) { return 0; }
1144                         if ($keyword eq "CAPIENG" && $no_capieng) { return 0; }
1145                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1146
1147                         # Nothing recognise as true
1148                         return 1;
1149                 }
1150         }
1151
1152         foreach $k (@keywords) {
1153                 if ($k =~ /^!(.*)$/) {
1154                         $falsesum += &recognise($1,$platforms);
1155                 } else {
1156                         $truesum *= &recognise($k,$platforms);
1157                 }
1158         }
1159         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1160         return (!$falsesum) && $truesum;
1161 }
1162
1163 sub print_test_file
1164 {
1165         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1166         my $n = 1; my @e; my @r;
1167         my $sym; my $prev = ""; my $prefSSLeay;
1168
1169         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1170         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1171         @symbols=((sort @e),(sort @r));
1172
1173         foreach $sym (@symbols) {
1174                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1175                 my $v = 0;
1176                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1177                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1178                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1179                 if (!defined($nums{$s})) {
1180                         print STDERR "Warning: $s does not have a number assigned\n"
1181                             if(!$do_update);
1182                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1183                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1184                         if ($prev eq $s2) {
1185                                 print OUT "\t/* The following has already appeared previously */\n";
1186                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1187                         }
1188                         $prev = $s2;    # To warn about duplicates...
1189
1190                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1191                         if ($v) {
1192                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1193                         } else {
1194                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1195                         }
1196                 }
1197         }
1198 }
1199
1200 sub get_version {
1201    local *MF;
1202    my $v = '?';
1203    open MF, 'Makefile' or return $v;
1204    while (<MF>) {
1205      $v = $1, last if /^VERSION=(.*?)\s*$/;
1206    }
1207    close MF;
1208    return $v;
1209 }
1210
1211 sub print_def_file
1212 {
1213         (*OUT,my $name,*nums,my @symbols)=@_;
1214         my $n = 1; my @e; my @r; my @v; my $prev="";
1215         my $liboptions="";
1216         my $libname = $name;
1217         my $http_vendor = 'www.openssl.org/';
1218         my $version = get_version();
1219         my $what = "OpenSSL: implementation of Secure Socket Layer";
1220         my $description = "$what $version, $name - http://$http_vendor";
1221
1222         if ($W32)
1223                 { $libname.="32"; }
1224         elsif ($W16)
1225                 { $libname.="16"; }
1226         elsif ($OS2)
1227                 { # DLL names should not clash on the whole system.
1228                   # However, they should not have any particular relationship
1229                   # to the name of the static library.  Chose descriptive names
1230                   # (must be at most 8 chars).
1231                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1232                   $libname = $translate{$name} || $name;
1233                   $liboptions = <<EOO;
1234 INITINSTANCE
1235 DATA MULTIPLE NONSHARED
1236 EOO
1237                   # Vendor field can't contain colon, drat; so we omit http://
1238                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1239                 }
1240
1241         print OUT <<"EOF";
1242 ;
1243 ; Definition file for the DLL version of the $name library from OpenSSL
1244 ;
1245
1246 LIBRARY         $libname        $liboptions
1247
1248 EOF
1249
1250         if ($W16) {
1251                 print <<"EOF";
1252 CODE            PRELOAD MOVEABLE
1253 DATA            PRELOAD MOVEABLE SINGLE
1254
1255 EXETYPE         WINDOWS
1256
1257 HEAPSIZE        4096
1258 STACKSIZE       8192
1259
1260 EOF
1261         }
1262
1263         print "EXPORTS\n";
1264
1265         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1266         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1267         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1268         @symbols=((sort @e),(sort @r), (sort @v));
1269
1270
1271         foreach $sym (@symbols) {
1272                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1273                 my $v = 0;
1274                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1275                 if (!defined($nums{$s})) {
1276                         printf STDERR "Warning: $s does not have a number assigned\n"
1277                             if(!$do_update);
1278                 } else {
1279                         (my $n, my $dummy) = split /\\/, $nums{$s};
1280                         my %pf = ();
1281                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1282                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1283                         if (is_valid($p,1) && is_valid($a,0)) {
1284                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1285                                 if ($prev eq $s2) {
1286                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1287                                 }
1288                                 $prev = $s2;    # To warn about duplicates...
1289                                 if($v && !$OS2) {
1290                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1291                                 } else {
1292                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1293                                 }
1294                         }
1295                 }
1296         }
1297         printf OUT "\n";
1298 }
1299
1300 sub load_numbers
1301 {
1302         my($name)=@_;
1303         my(@a,%ret);
1304
1305         $max_num = 0;
1306         $num_noinfo = 0;
1307         $prev = "";
1308         $prev_cnt = 0;
1309
1310         open(IN,"<$name") || die "unable to open $name:$!\n";
1311         while (<IN>) {
1312                 chop;
1313                 s/#.*$//;
1314                 next if /^\s*$/;
1315                 @a=split;
1316                 if (defined $ret{$a[0]}) {
1317                         # This is actually perfectly OK
1318                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1319                 }
1320                 if ($max_num > $a[1]) {
1321                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1322                 }
1323                 elsif ($max_num == $a[1]) {
1324                         # This is actually perfectly OK
1325                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1326                         if ($a[0] eq $prev) {
1327                                 $prev_cnt++;
1328                                 $a[0] .= "{$prev_cnt}";
1329                         }
1330                 }
1331                 else {
1332                         $prev_cnt = 0;
1333                 }
1334                 if ($#a < 2) {
1335                         # Existence will be proven later, in do_defs
1336                         $ret{$a[0]}=$a[1];
1337                         $num_noinfo++;
1338                 } else {
1339                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1340                 }
1341                 $max_num = $a[1] if $a[1] > $max_num;
1342                 $prev=$a[0];
1343         }
1344         if ($num_noinfo) {
1345                 print STDERR "Warning: $num_noinfo symbols were without info.";
1346                 if ($do_rewrite) {
1347                         printf STDERR "  The rewrite will fix this.\n";
1348                 } else {
1349                         printf STDERR "  You should do a rewrite to fix this.\n";
1350                 }
1351         }
1352         close(IN);
1353         return(%ret);
1354 }
1355
1356 sub parse_number
1357 {
1358         (my $str, my $what) = @_;
1359         (my $n, my $i) = split(/\\/,$str);
1360         if ($what eq "n") {
1361                 return $n;
1362         } else {
1363                 return $i;
1364         }
1365 }
1366
1367 sub rewrite_numbers
1368 {
1369         (*OUT,$name,*nums,@symbols)=@_;
1370         my $thing;
1371
1372         print STDERR "Rewriting $name\n";
1373
1374         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1375         my $r; my %r; my %rsyms;
1376         foreach $r (@r) {
1377                 (my $s, my $i) = split /\\/, $r;
1378                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1379                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1380                 $r{$a} = $s."\\".$i;
1381                 $rsyms{$s} = 1;
1382         }
1383
1384         my %syms = ();
1385         foreach $_ (@symbols) {
1386                 (my $n, my $i) = split /\\/;
1387                 $syms{$n} = 1;
1388         }
1389
1390         my @s=sort {
1391             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1392             || $a cmp $b
1393         } keys %nums;
1394         foreach $sym (@s) {
1395                 (my $n, my $i) = split /\\/, $nums{$sym};
1396                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1397                 next if defined($rsyms{$sym});
1398                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1399                 $i="NOEXIST::FUNCTION:"
1400                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1401                 my $s2 = $sym;
1402                 $s2 =~ s/\{[0-9]+\}$//;
1403                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1404                 if (exists $r{$sym}) {
1405                         (my $s, $i) = split /\\/,$r{$sym};
1406                         my $s2 = $s;
1407                         $s2 =~ s/\{[0-9]+\}$//;
1408                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1409                 }
1410         }
1411 }
1412
1413 sub update_numbers
1414 {
1415         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1416         my $new_syms = 0;
1417
1418         print STDERR "Updating $name numbers\n";
1419
1420         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1421         my $r; my %r; my %rsyms;
1422         foreach $r (@r) {
1423                 (my $s, my $i) = split /\\/, $r;
1424                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1425                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1426                 $r{$a} = $s."\\".$i;
1427                 $rsyms{$s} = 1;
1428         }
1429
1430         foreach $sym (@symbols) {
1431                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1432                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1433                 next if defined($rsyms{$sym});
1434                 die "ERROR: Symbol $sym had no info attached to it."
1435                     if $i eq "";
1436                 if (!exists $nums{$s}) {
1437                         $new_syms++;
1438                         my $s2 = $s;
1439                         $s2 =~ s/\{[0-9]+\}$//;
1440                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1441                         if (exists $r{$s}) {
1442                                 ($s, $i) = split /\\/,$r{$s};
1443                                 $s =~ s/\{[0-9]+\}$//;
1444                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1445                         }
1446                 }
1447         }
1448         if($new_syms) {
1449                 print STDERR "$new_syms New symbols added\n";
1450         } else {
1451                 print STDERR "No New symbols Added\n";
1452         }
1453 }
1454
1455 sub check_existing
1456 {
1457         (*nums, my @symbols)=@_;
1458         my %existing; my @remaining;
1459         @remaining=();
1460         foreach $sym (@symbols) {
1461                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1462                 $existing{$s}=1;
1463         }
1464         foreach $sym (keys %nums) {
1465                 if (!exists $existing{$sym}) {
1466                         push @remaining, $sym;
1467                 }
1468         }
1469         if(@remaining) {
1470                 print STDERR "The following symbols do not seem to exist:\n";
1471                 foreach $sym (@remaining) {
1472                         print STDERR "\t",$sym,"\n";
1473                 }
1474         }
1475 }
1476