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", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA", "HMAC", "AES", "CAMELLIA", "SEED",
  88                          # Envelope "algorithms"
  89                          "EVP", "X509", "ASN1_TYPEDEFS",
  90                          # Helper "algorithms"
  91                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  92                          "LOCKING",
  93                          # External "algorithms"
  94                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
  95                          # Engines
  96                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
  97                          # RFC3779 support
  98                          "RFC3779",
  99                          # TLS extension support
 100                          "TLSEXT",
 101                          # CMS
 102                          "CMS",
 103                          # Deprecated functions
 104                          "DEPRECATED" );
 105
 106 my $options="";
 107 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 108 while(<IN>) {
 109     $options=$1 if (/^OPTIONS=(.*)$/);
 110 }
 111 close(IN);
 112
 113 # The following ciphers may be excluded (by Configure). This means functions
 114 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 115 # in directory xxx is ignored.
 116 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 117 my $no_cast;
 118 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 119 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 120 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw; my $no_camellia;
 121 my $no_seed;
 122 my $no_fp_api; my $no_static_engine; my $no_gmp; my $no_deprecated;
 123 my $no_rfc3779; my $no_tlsext; my $no_cms;
 124
 125
 126 foreach (@ARGV, split(/ /, $options))
 127         {
 128         $debug=1 if $_ eq "debug";
 129         $W32=1 if $_ eq "32";
 130         $W16=1 if $_ eq "16";
 131         if($_ eq "NT") {
 132                 $W32 = 1;
 133                 $NT = 1;
 134         }
 135         if ($_ eq "VMS-VAX") {
 136                 $VMS=1;
 137                 $VMSVAX=1;
 138         }
 139         if ($_ eq "VMS-Alpha") {
 140                 $VMS=1;
 141                 $VMSAlpha=1;
 142         }
 143         $VMS=1 if $_ eq "VMS";
 144         $OS2=1 if $_ eq "OS2";
 145         if ($_ eq "zlib" || $_ eq "zlib-dynamic"
 146                          || $_ eq "enable-zlib-dynamic") {
 147                 $zlib = 1;
 148         }
 149
 150
 151         $do_ssl=1 if $_ eq "ssleay";
 152         if ($_ eq "ssl") {
 153                 $do_ssl=1;
 154                 $libname=$_
 155         }
 156         $do_crypto=1 if $_ eq "libeay";
 157         if ($_ eq "crypto") {
 158                 $do_crypto=1;
 159                 $libname=$_;
 160         }
 161         $no_static_engine=1 if $_ eq "no-static-engine";
 162         $no_static_engine=0 if $_ eq "enable-static-engine";
 163         $do_update=1 if $_ eq "update";
 164         $do_rewrite=1 if $_ eq "rewrite";
 165         $do_ctest=1 if $_ eq "ctest";
 166         $do_ctestall=1 if $_ eq "ctestall";
 167         $do_checkexist=1 if $_ eq "exist";
 168         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 169
 170         if    (/^no-rc2$/)      { $no_rc2=1; }
 171         elsif (/^no-rc4$/)      { $no_rc4=1; }
 172         elsif (/^no-rc5$/)      { $no_rc5=1; }
 173         elsif (/^no-idea$/)     { $no_idea=1; }
 174         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 175         elsif (/^no-bf$/)       { $no_bf=1; }
 176         elsif (/^no-cast$/)     { $no_cast=1; }
 177         elsif (/^no-md2$/)      { $no_md2=1; }
 178         elsif (/^no-md4$/)      { $no_md4=1; }
 179         elsif (/^no-md5$/)      { $no_md5=1; }
 180         elsif (/^no-sha$/)      { $no_sha=1; }
 181         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 182         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 183         elsif (/^no-rsa$/)      { $no_rsa=1; }
 184         elsif (/^no-dsa$/)      { $no_dsa=1; }
 185         elsif (/^no-dh$/)       { $no_dh=1; }
 186         elsif (/^no-ec$/)       { $no_ec=1; }
 187         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 188         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 189         elsif (/^no-hmac$/)     { $no_hmac=1; }
 190         elsif (/^no-aes$/)      { $no_aes=1; }
 191         elsif (/^no-camellia$/) { $no_camellia=1; }
 192         elsif (/^no-seed$/)     { $no_seed=1; }
 193         elsif (/^no-evp$/)      { $no_evp=1; }
 194         elsif (/^no-lhash$/)    { $no_lhash=1; }
 195         elsif (/^no-stack$/)    { $no_stack=1; }
 196         elsif (/^no-err$/)      { $no_err=1; }
 197         elsif (/^no-buffer$/)   { $no_buffer=1; }
 198         elsif (/^no-bio$/)      { $no_bio=1; }
 199         #elsif (/^no-locking$/) { $no_locking=1; }
 200         elsif (/^no-comp$/)     { $no_comp=1; }
 201         elsif (/^no-dso$/)      { $no_dso=1; }
 202         elsif (/^no-krb5$/)     { $no_krb5=1; }
 203         elsif (/^no-engine$/)   { $no_engine=1; }
 204         elsif (/^no-hw$/)       { $no_hw=1; }
 205         elsif (/^no-gmp$/)      { $no_gmp=1; }
 206         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
 207         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
 208         elsif (/^no-cms$/)      { $no_cms=1; }
 209         }
 210
 211
 212 if (!$libname) {
 213         if ($do_ssl) {
 214                 $libname="SSLEAY";
 215         }
 216         if ($do_crypto) {
 217                 $libname="LIBEAY";
 218         }
 219 }
 220
 221 # If no platform is given, assume WIN32
 222 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 223         $W32 = 1;
 224 }
 225
 226 # Add extra knowledge
 227 if ($W16) {
 228         $no_fp_api=1;
 229 }
 230
 231 if (!$do_ssl && !$do_crypto)
 232         {
 233         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 234         exit(1);
 235         }
 236
 237 %ssl_list=&load_numbers($ssl_num);
 238 $max_ssl = $max_num;
 239 %crypto_list=&load_numbers($crypto_num);
 240 $max_crypto = $max_num;
 241
 242 my $ssl="ssl/ssl.h";
 243 $ssl.=" ssl/kssl.h";
 244 $ssl.=" ssl/tls1.h";
 245
 246 my $crypto ="crypto/crypto.h";
 247 $crypto.=" crypto/o_dir.h";
 248 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 249 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 250 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 251 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 252 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 253 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 254 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 255 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 256 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 257 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 258 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 259 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 260 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 261 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 262 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 263 $crypto.=" crypto/seed/seed.h"; # unless $no_seed;
 264
 265 $crypto.=" crypto/bn/bn.h";
 266 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 267 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 268 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 269 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 270 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 271 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 272 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 273
 274 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 275 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 276 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 277 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 278 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 279 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 280 $crypto.=" crypto/conf/conf.h";
 281 $crypto.=" crypto/txt_db/txt_db.h";
 282
 283 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 284 $crypto.=" crypto/objects/objects.h";
 285 $crypto.=" crypto/pem/pem.h";
 286 #$crypto.=" crypto/meth/meth.h";
 287 $crypto.=" crypto/asn1/asn1.h";
 288 $crypto.=" crypto/asn1/asn1t.h";
 289 $crypto.=" crypto/asn1/asn1_mac.h";
 290 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 291 $crypto.=" crypto/pkcs7/pkcs7.h";
 292 $crypto.=" crypto/pkcs12/pkcs12.h";
 293 $crypto.=" crypto/x509/x509.h";
 294 $crypto.=" crypto/x509/x509_vfy.h";
 295 $crypto.=" crypto/x509v3/x509v3.h";
 296 $crypto.=" crypto/rand/rand.h";
 297 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 298 $crypto.=" crypto/ocsp/ocsp.h";
 299 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 300 $crypto.=" crypto/krb5/krb5_asn.h";
 301 $crypto.=" crypto/tmdiff.h";
 302 $crypto.=" crypto/store/store.h";
 303 $crypto.=" crypto/pqueue/pqueue.h";
 304 $crypto.=" crypto/cms/cms.h";
 305
 306 my $symhacks="crypto/symhacks.h";
 307
 308 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 309 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 310
 311 if ($do_update) {
 312
 313 if ($do_ssl == 1) {
 314
 315         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 316         if ($do_rewrite == 1) {
 317                 open(OUT, ">$ssl_num");
 318                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 319         } else {
 320                 open(OUT, ">>$ssl_num");
 321         }
 322         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 323         close OUT;
 324 }
 325
 326 if($do_crypto == 1) {
 327
 328         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 329         if ($do_rewrite == 1) {
 330                 open(OUT, ">$crypto_num");
 331                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 332         } else {
 333                 open(OUT, ">>$crypto_num");
 334         }
 335         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 336         close OUT;
 337 }
 338
 339 } elsif ($do_checkexist) {
 340         &check_existing(*ssl_list, @ssl_symbols)
 341                 if $do_ssl == 1;
 342         &check_existing(*crypto_list, @crypto_symbols)
 343                 if $do_crypto == 1;
 344 } elsif ($do_ctest || $do_ctestall) {
 345
 346         print <<"EOF";
 347
 348 /* Test file to check all DEF file symbols are present by trying
 349  * to link to all of them. This is *not* intended to be run!
 350  */
 351
 352 int main()
 353 {
 354 EOF
 355         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 356                 if $do_ssl == 1;
 357
 358         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 359                 if $do_crypto == 1;
 360
 361         print "}\n";
 362
 363 } else {
 364
 365         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 366                 if $do_ssl == 1;
 367
 368         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 369                 if $do_crypto == 1;
 370
 371 }
 372
 373
 374 sub do_defs
 375 {
 376         my($name,$files,$symhacksfile)=@_;
 377         my $file;
 378         my @ret;
 379         my %syms;
 380         my %platform;           # For anything undefined, we assume ""
 381         my %kind;               # For anything undefined, we assume "FUNCTION"
 382         my %algorithm;          # For anything undefined, we assume ""
 383         my %variant;
 384         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 385                                 # is the same name as the original.
 386         my $cpp;
 387         my %unknown_algorithms = ();
 388
 389         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 390                 {
 391                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 392                 open(IN,"<$file") || die "unable to open $file:$!\n";
 393                 my $line = "", my $def= "";
 394                 my %tag = (
 395                         (map { $_ => 0 } @known_platforms),
 396                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 397                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 398                         NOPROTO         => 0,
 399                         PERL5           => 0,
 400                         _WINDLL         => 0,
 401                         CONST_STRICT    => 0,
 402                         TRUE            => 1,
 403                 );
 404                 my $symhacking = $file eq $symhacksfile;
 405                 my @current_platforms = ();
 406                 my @current_algorithms = ();
 407
 408                 # params: symbol, alias, platforms, kind
 409                 # The reason to put this subroutine in a variable is that
 410                 # it will otherwise create it's own, unshared, version of
 411                 # %tag and %variant...
 412                 my $make_variant = sub
 413                 {
 414                         my ($s, $a, $p, $k) = @_;
 415                         my ($a1, $a2);
 416
 417                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 418                         if (defined($p))
 419                         {
 420                                 $a1 = join(",",$p,
 421                                            grep(!/^$/,
 422                                                 map { $tag{$_} == 1 ? $_ : "" }
 423                                                 @known_platforms));
 424                         }
 425                         else
 426                         {
 427                                 $a1 = join(",",
 428                                            grep(!/^$/,
 429                                                 map { $tag{$_} == 1 ? $_ : "" }
 430                                                 @known_platforms));
 431                         }
 432                         $a2 = join(",",
 433                                    grep(!/^$/,
 434                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 435                                         @known_ossl_platforms));
 436                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 437                         if ($a1 eq "") { $a1 = $a2; }
 438                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 439                         if ($a eq $s)
 440                         {
 441                                 if (!defined($variant_cnt{$s}))
 442                                 {
 443                                         $variant_cnt{$s} = 0;
 444                                 }
 445                                 $variant_cnt{$s}++;
 446                                 $a .= "{$variant_cnt{$s}}";
 447                         }
 448                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 449                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 450                         if (!grep(/^$togrep$/,
 451                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 452                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 453                                 $variant{$s} .= $toadd;
 454                         }
 455                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 456                 };
 457
 458                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 459                 while(<IN>) {
 460                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 461                                 {
 462                                 undef @tag;
 463                                 last;
 464                                 }
 465                         if ($line ne '') {
 466                                 $_ = $line . $_;
 467                                 $line = '';
 468                         }
 469
 470                         if (/\\$/) {
 471                                 chomp; # remove eol
 472                                 chop; # remove ending backslash
 473                                 $line = $_;
 474                                 next;
 475                         }
 476
 477                         if(/\/\*/) {
 478                                 if (not /\*\//) {       # multiline comment...
 479                                         $line = $_;     # ... just accumulate
 480                                         next;
 481                                 } else {
 482                                         s/\/\*.*?\*\///gs;# wipe it
 483                                 }
 484                         }
 485
 486                         if ($cpp) {
 487                                 $cpp++ if /^#\s*if/;
 488                                 $cpp-- if /^#\s*endif/;
 489                                 next;
 490                         }
 491                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 492
 493                         s/{[^{}]*}//gs;                      # ignore {} blocks
 494                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 495                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 496                         if (/^\#\s*ifndef\s+(.*)/) {
 497                                 push(@tag,"-");
 498                                 push(@tag,$1);
 499                                 $tag{$1}=-1;
 500                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 501                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 502                                 push(@tag,"-");
 503                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 504                                         my $tmp_1 = $1;
 505                                         my $tmp_;
 506                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 507                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 508                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 509                                                 push(@tag,$1);
 510                                                 $tag{$1}=-1;
 511                                         }
 512                                 } else {
 513                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 514                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 515                                         push(@tag,$1);
 516                                         $tag{$1}=-1;
 517                                 }
 518                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 519                                 push(@tag,"-");
 520                                 push(@tag,$1);
 521                                 $tag{$1}=1;
 522                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 523                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 524                                 push(@tag,"-");
 525                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 526                                         my $tmp_1 = $1;
 527                                         my $tmp_;
 528                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 529                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 530                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 531                                                 push(@tag,$1);
 532                                                 $tag{$1}=1;
 533                                         }
 534                                 } else {
 535                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 536                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 537                                         push(@tag,$1);
 538                                         $tag{$1}=1;
 539                                 }
 540                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 541                                 my $tag_i = $#tag;
 542                                 while($tag[$tag_i] ne "-") {
 543                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 544                                                 $tag{$tag[$tag_i]}=2;
 545                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 546                                         }
 547                                         $tag_i--;
 548                                 }
 549                         } elsif (/^\#\s*endif/) {
 550                                 my $tag_i = $#tag;
 551                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 552                                         my $t=$tag[$tag_i];
 553                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 554                                         if ($tag{$t}==2) {
 555                                                 $tag{$t}=-1;
 556                                         } else {
 557                                                 $tag{$t}=0;
 558                                         }
 559                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 560                                         pop(@tag);
 561                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 562                                                 $t=$1;
 563                                         } else {
 564                                                 $t="";
 565                                         }
 566                                         if ($t ne ""
 567                                             && !grep(/^$t$/, @known_algorithms)) {
 568                                                 $unknown_algorithms{$t} = 1;
 569                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 570                                         }
 571                                         $tag_i--;
 572                                 }
 573                                 pop(@tag);
 574                         } elsif (/^\#\s*else/) {
 575                                 my $tag_i = $#tag;
 576                                 while($tag[$tag_i] ne "-") {
 577                                         my $t=$tag[$tag_i];
 578                                         $tag{$t}= -$tag{$t};
 579                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 580                                         $tag_i--;
 581                                 }
 582                         } elsif (/^\#\s*if\s+1/) {
 583                                 push(@tag,"-");
 584                                 # Dummy tag
 585                                 push(@tag,"TRUE");
 586                                 $tag{"TRUE"}=1;
 587                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 588                         } elsif (/^\#\s*if\s+0/) {
 589                                 push(@tag,"-");
 590                                 # Dummy tag
 591                                 push(@tag,"TRUE");
 592                                 $tag{"TRUE"}=-1;
 593                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 594                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 595                                  && $symhacking && $tag{'TRUE'} != -1) {
 596                                 # This is for aliasing.  When we find an alias,
 597                                 # we have to invert
 598                                 &$make_variant($1,$2);
 599                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 600                         }
 601                         if (/^\#/) {
 602                                 @current_platforms =
 603                                     grep(!/^$/,
 604                                          map { $tag{$_} == 1 ? $_ :
 605                                                    $tag{$_} == -1 ? "!".$_  : "" }
 606                                          @known_platforms);
 607                                 push @current_platforms
 608                                     , grep(!/^$/,
 609                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 610                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 611                                            @known_ossl_platforms);
 612                                 @current_algorithms =
 613                                     grep(!/^$/,
 614                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 615                                          @known_algorithms);
 616                                 $def .=
 617                                     "#INFO:"
 618                                         .join(',',@current_platforms).":"
 619                                             .join(',',@current_algorithms).";";
 620                                 next;
 621                         }
 622                         if ($tag{'TRUE'} != -1) {
 623                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 624                                         next;
 625                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 626                                         $def .= "int d2i_$3(void);";
 627                                         $def .= "int i2d_$3(void);";
 628                                         # Variant for platforms that do not
 629                                         # have to access globale variables
 630                                         # in shared libraries through functions
 631                                         $def .=
 632                                             "#INFO:"
 633                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 634                                                     .join(',',@current_algorithms).";";
 635                                         $def .= "OPENSSL_EXTERN int $2_it;";
 636                                         $def .=
 637                                             "#INFO:"
 638                                                 .join(',',@current_platforms).":"
 639                                                     .join(',',@current_algorithms).";";
 640                                         # Variant for platforms that have to
 641                                         # access globale variables in shared
 642                                         # libraries through functions
 643                                         &$make_variant("$2_it","$2_it",
 644                                                       "EXPORT_VAR_AS_FUNCTION",
 645                                                       "FUNCTION");
 646                                         next;
 647                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 648                                         $def .= "int d2i_$3(void);";
 649                                         $def .= "int i2d_$3(void);";
 650                                         $def .= "int $3_free(void);";
 651                                         $def .= "int $3_new(void);";
 652                                         # Variant for platforms that do not
 653                                         # have to access globale variables
 654                                         # in shared libraries through functions
 655                                         $def .=
 656                                             "#INFO:"
 657                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 658                                                     .join(',',@current_algorithms).";";
 659                                         $def .= "OPENSSL_EXTERN int $2_it;";
 660                                         $def .=
 661                                             "#INFO:"
 662                                                 .join(',',@current_platforms).":"
 663                                                     .join(',',@current_algorithms).";";
 664                                         # Variant for platforms that have to
 665                                         # access globale variables in shared
 666                                         # libraries through functions
 667                                         &$make_variant("$2_it","$2_it",
 668                                                       "EXPORT_VAR_AS_FUNCTION",
 669                                                       "FUNCTION");
 670                                         next;
 671                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 672                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 673                                         $def .= "int d2i_$1(void);";
 674                                         $def .= "int i2d_$1(void);";
 675                                         $def .= "int $1_free(void);";
 676                                         $def .= "int $1_new(void);";
 677                                         # Variant for platforms that do not
 678                                         # have to access globale variables
 679                                         # in shared libraries through functions
 680                                         $def .=
 681                                             "#INFO:"
 682                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 683                                                     .join(',',@current_algorithms).";";
 684                                         $def .= "OPENSSL_EXTERN int $1_it;";
 685                                         $def .=
 686                                             "#INFO:"
 687                                                 .join(',',@current_platforms).":"
 688                                                     .join(',',@current_algorithms).";";
 689                                         # Variant for platforms that have to
 690                                         # access globale variables in shared
 691                                         # libraries through functions
 692                                         &$make_variant("$1_it","$1_it",
 693                                                       "EXPORT_VAR_AS_FUNCTION",
 694                                                       "FUNCTION");
 695                                         next;
 696                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 697                                         $def .= "int d2i_$2(void);";
 698                                         $def .= "int i2d_$2(void);";
 699                                         # Variant for platforms that do not
 700                                         # have to access globale variables
 701                                         # in shared libraries through functions
 702                                         $def .=
 703                                             "#INFO:"
 704                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 705                                                     .join(',',@current_algorithms).";";
 706                                         $def .= "OPENSSL_EXTERN int $2_it;";
 707                                         $def .=
 708                                             "#INFO:"
 709                                                 .join(',',@current_platforms).":"
 710                                                     .join(',',@current_algorithms).";";
 711                                         # Variant for platforms that have to
 712                                         # access globale variables in shared
 713                                         # libraries through functions
 714                                         &$make_variant("$2_it","$2_it",
 715                                                       "EXPORT_VAR_AS_FUNCTION",
 716                                                       "FUNCTION");
 717                                         next;
 718                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 719                                         $def .= "int $1_free(void);";
 720                                         $def .= "int $1_new(void);";
 721                                         next;
 722                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 723                                         $def .= "int d2i_$2(void);";
 724                                         $def .= "int i2d_$2(void);";
 725                                         $def .= "int $2_free(void);";
 726                                         $def .= "int $2_new(void);";
 727                                         # Variant for platforms that do not
 728                                         # have to access globale variables
 729                                         # in shared libraries through functions
 730                                         $def .=
 731                                             "#INFO:"
 732                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 733                                                     .join(',',@current_algorithms).";";
 734                                         $def .= "OPENSSL_EXTERN int $2_it;";
 735                                         $def .=
 736                                             "#INFO:"
 737                                                 .join(',',@current_platforms).":"
 738                                                     .join(',',@current_algorithms).";";
 739                                         # Variant for platforms that have to
 740                                         # access globale variables in shared
 741                                         # libraries through functions
 742                                         &$make_variant("$2_it","$2_it",
 743                                                       "EXPORT_VAR_AS_FUNCTION",
 744                                                       "FUNCTION");
 745                                         next;
 746                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 747                                         # Variant for platforms that do not
 748                                         # have to access globale variables
 749                                         # in shared libraries through functions
 750                                         $def .=
 751                                             "#INFO:"
 752                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 753                                                     .join(',',@current_algorithms).";";
 754                                         $def .= "OPENSSL_EXTERN int $1_it;";
 755                                         $def .=
 756                                             "#INFO:"
 757                                                 .join(',',@current_platforms).":"
 758                                                     .join(',',@current_algorithms).";";
 759                                         # Variant for platforms that have to
 760                                         # access globale variables in shared
 761                                         # libraries through functions
 762                                         &$make_variant("$1_it","$1_it",
 763                                                       "EXPORT_VAR_AS_FUNCTION",
 764                                                       "FUNCTION");
 765                                         next;
 766                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 767                                         $def .= "int i2d_$1_NDEF(void);";
 768                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 769                                         next;
 770                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 771                                         $def .= "int $1_print_ctx(void);";
 772                                         next;
 773                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 774                                         $def .= "int $2_print_ctx(void);";
 775                                         next;
 776                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 777                                         next;
 778                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 779                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 780                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 781                                         # Things not in Win16
 782                                         $def .=
 783                                             "#INFO:"
 784                                                 .join(',',"!WIN16",@current_platforms).":"
 785                                                     .join(',',@current_algorithms).";";
 786                                         $def .= "int PEM_read_$1(void);";
 787                                         $def .= "int PEM_write_$1(void);";
 788                                         $def .=
 789                                             "#INFO:"
 790                                                 .join(',',@current_platforms).":"
 791                                                     .join(',',@current_algorithms).";";
 792                                         # Things that are everywhere
 793                                         $def .= "int PEM_read_bio_$1(void);";
 794                                         $def .= "int PEM_write_bio_$1(void);";
 795                                         next;
 796                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 797                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 798                                         # Things not in Win16
 799                                         $def .=
 800                                             "#INFO:"
 801                                                 .join(',',"!WIN16",@current_platforms).":"
 802                                                     .join(',',@current_algorithms).";";
 803                                         $def .= "int PEM_write_$1(void);";
 804                                         $def .=
 805                                             "#INFO:"
 806                                                 .join(',',@current_platforms).":"
 807                                                     .join(',',@current_algorithms).";";
 808                                         # Things that are everywhere
 809                                         $def .= "int PEM_write_bio_$1(void);";
 810                                         next;
 811                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 812                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 813                                         # Things not in Win16
 814                                         $def .=
 815                                             "#INFO:"
 816                                                 .join(',',"!WIN16",@current_platforms).":"
 817                                                     .join(',',@current_algorithms).";";
 818                                         $def .= "int PEM_read_$1(void);";
 819                                         $def .=
 820                                             "#INFO:"
 821                                                 .join(',',@current_platforms).":"
 822                                                     .join(',',@current_algorithms).";";
 823                                         # Things that are everywhere
 824                                         $def .= "int PEM_read_bio_$1(void);";
 825                                         next;
 826                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 827                                         # Variant for platforms that do not
 828                                         # have to access globale variables
 829                                         # in shared libraries through functions
 830                                         $def .=
 831                                             "#INFO:"
 832                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 833                                                     .join(',',@current_algorithms).";";
 834                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 835                                         $def .=
 836                                             "#INFO:"
 837                                                 .join(',',@current_platforms).":"
 838                                                     .join(',',@current_algorithms).";";
 839                                         # Variant for platforms that have to
 840                                         # access globale variables in shared
 841                                         # libraries through functions
 842                                         &$make_variant("_shadow_$2","_shadow_$2",
 843                                                       "EXPORT_VAR_AS_FUNCTION",
 844                                                       "FUNCTION");
 845                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 846                                         if (/\{|\/\*|\([^\)]*$/) {
 847                                                 $line = $_;
 848                                         } else {
 849                                                 $def .= $_;
 850                                         }
 851                                 }
 852                         }
 853                 }
 854                 close(IN);
 855
 856                 my $algs;
 857                 my $plays;
 858
 859                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 860                 foreach (split /;/, $def) {
 861                         my $s; my $k = "FUNCTION"; my $p; my $a;
 862                         s/^[\n\s]*//g;
 863                         s/[\n\s]*$//g;
 864                         next if(/\#undef/);
 865                         next if(/typedef\W/);
 866                         next if(/\#define/);
 867
 868                         # Reduce argument lists to empty ()
 869                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 870                         while(/\(.*\)/s) {
 871                                 s/\([^\(\)]+\)/\{\}/gs;
 872                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 873                         }
 874                         # pretend as we didn't use curly braces: {} -> ()
 875                         s/\{\}/\(\)/gs;
 876
 877                         s/STACK_OF\(\)/void/gs;
 878
 879                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 880                         if (/^\#INFO:([^:]*):(.*)$/) {
 881                                 $plats = $1;
 882                                 $algs = $2;
 883                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 884                                 next;
 885                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 886                                 $s = $1;
 887                                 $k = "VARIABLE";
 888                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 889                         } elsif (/TYPEDEF_\w+_OF/s) {
 890                                 next;
 891                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 892                                 $s = $1;                # a function name!
 893                                 print STDERR "DEBUG: found function $s\n" if $debug;
 894                         } elsif (/\(/ and not (/=/)) {
 895                                 print STDERR "File $file: cannot parse: $_;\n";
 896                                 next;
 897                         } else {
 898                                 next;
 899                         }
 900
 901                         $syms{$s} = 1;
 902                         $kind{$s} = $k;
 903
 904                         $p = $plats;
 905                         $a = $algs;
 906                         $a .= ",BF" if($s =~ /EVP_bf/);
 907                         $a .= ",CAST" if($s =~ /EVP_cast/);
 908                         $a .= ",DES" if($s =~ /EVP_des/);
 909                         $a .= ",DSA" if($s =~ /EVP_dss/);
 910                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 911                         $a .= ",MD2" if($s =~ /EVP_md2/);
 912                         $a .= ",MD4" if($s =~ /EVP_md4/);
 913                         $a .= ",MD5" if($s =~ /EVP_md5/);
 914                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 915                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 916                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 917                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 918                         $a .= ",SHA" if($s =~ /EVP_sha/);
 919                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 920                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 921                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 922                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 923
 924                         $platform{$s} =
 925                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 926                         $algorithm{$s} .= ','.$a;
 927
 928                         if (defined($variant{$s})) {
 929                                 foreach $v (split /;/,$variant{$s}) {
 930                                         (my $r, my $p, my $k) = split(/:/,$v);
 931                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 932                                         $syms{$r} = 1;
 933                                         if (!defined($k)) { $k = $kind{$s}; }
 934                                         $kind{$r} = $k."(".$s.")";
 935                                         $algorithm{$r} = $algorithm{$s};
 936                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 937                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 938                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 939                                 }
 940                         }
 941                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 942                 }
 943         }
 944
 945         # Prune the returned symbols
 946
 947         delete $syms{"bn_dump1"};
 948         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 949
 950         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 951         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 952         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 953         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 954
 955         # Info we know about
 956
 957         push @ret, map { $_."\\".&info_string($_,"EXIST",
 958                                               $platform{$_},
 959                                               $kind{$_},
 960                                               $algorithm{$_}) } keys %syms;
 961
 962         if (keys %unknown_algorithms) {
 963                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 964                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 965         }
 966         return(@ret);
 967 }
 968
 969 # Param: string of comma-separated platform-specs.
 970 sub reduce_platforms
 971 {
 972         my ($platforms) = @_;
 973         my $pl = defined($platforms) ? $platforms : "";
 974         my %p = map { $_ => 0 } split /,/, $pl;
 975         my $ret;
 976
 977         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 978             if $debug;
 979         # We do this, because if there's code like the following, it really
 980         # means the function exists in all cases and should therefore be
 981         # everywhere.  By increasing and decreasing, we may attain 0:
 982         #
 983         # ifndef WIN16
 984         #    int foo();
 985         # else
 986         #    int _fat foo();
 987         # endif
 988         foreach $platform (split /,/, $pl) {
 989                 if ($platform =~ /^!(.*)$/) {
 990                         $p{$1}--;
 991                 } else {
 992                         $p{$platform}++;
 993                 }
 994         }
 995         foreach $platform (keys %p) {
 996                 if ($p{$platform} == 0) { delete $p{$platform}; }
 997         }
 998
 999         delete $p{""};
1000
1001         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1002         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1003             if $debug;
1004         return $ret;
1005 }
1006
1007 sub info_string {
1008         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1009
1010         my %a = defined($algorithms) ?
1011             map { $_ => 1 } split /,/, $algorithms : ();
1012         my $k = defined($kind) ? $kind : "FUNCTION";
1013         my $ret;
1014         my $p = &reduce_platforms($platforms);
1015
1016         delete $a{""};
1017
1018         $ret = $exist;
1019         $ret .= ":".$p;
1020         $ret .= ":".$k;
1021         $ret .= ":".join(',',sort keys %a);
1022         return $ret;
1023 }
1024
1025 sub maybe_add_info {
1026         (my $name, *nums, my @symbols) = @_;
1027         my $sym;
1028         my $new_info = 0;
1029         my %syms=();
1030
1031         print STDERR "Updating $name info\n";
1032         foreach $sym (@symbols) {
1033                 (my $s, my $i) = split /\\/, $sym;
1034                 if (defined($nums{$s})) {
1035                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1036                         (my $n, my $dummy) = split /\\/, $nums{$s};
1037                         if (!defined($dummy) || $i ne $dummy) {
1038                                 $nums{$s} = $n."\\".$i;
1039                                 $new_info++;
1040                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1041                         }
1042                 }
1043                 $syms{$s} = 1;
1044         }
1045
1046         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1047         foreach $sym (@s) {
1048                 (my $n, my $i) = split /\\/, $nums{$sym};
1049                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1050                         $new_info++;
1051                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1052                 }
1053         }
1054         if ($new_info) {
1055                 print STDERR "$new_info old symbols got an info update\n";
1056                 if (!$do_rewrite) {
1057                         print STDERR "You should do a rewrite to fix this.\n";
1058                 }
1059         } else {
1060                 print STDERR "No old symbols needed info update\n";
1061         }
1062 }
1063
1064 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1065 sub is_valid
1066 {
1067         my ($keywords_txt,$platforms) = @_;
1068         my (@keywords) = split /,/,$keywords_txt;
1069         my ($falsesum, $truesum) = (0, 1);
1070
1071         # Param: one keyword
1072         sub recognise
1073         {
1074                 my ($keyword,$platforms) = @_;
1075
1076                 if ($platforms) {
1077                         # platforms
1078                         if ($keyword eq "VMS" && $VMS) { return 1; }
1079                         if ($keyword eq "WIN32" && $W32) { return 1; }
1080                         if ($keyword eq "WIN16" && $W16) { return 1; }
1081                         if ($keyword eq "WINNT" && $NT) { return 1; }
1082                         if ($keyword eq "OS2" && $OS2) { return 1; }
1083                         # Special platforms:
1084                         # EXPORT_VAR_AS_FUNCTION means that global variables
1085                         # will be represented as functions.  This currently
1086                         # only happens on VMS-VAX.
1087                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1088                                 return 1;
1089                         }
1090                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1091                         return 0;
1092                 } else {
1093                         # algorithms
1094                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1095                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1096                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1097                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1098                         if ($keyword eq "DES" && $no_des) { return 0; }
1099                         if ($keyword eq "BF" && $no_bf) { return 0; }
1100                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1101                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1102                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1103                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1104                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1105                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1106                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1107                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1108                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1109                         if ($keyword eq "DH" && $no_dh) { return 0; }
1110                         if ($keyword eq "EC" && $no_ec) { return 0; }
1111                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1112                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1113                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1114                         if ($keyword eq "AES" && $no_aes) { return 0; }
1115                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1116                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1117                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1118                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1119                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1120                         if ($keyword eq "ERR" && $no_err) { return 0; }
1121                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1122                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1123                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1124                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1125                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1126                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1127                         if ($keyword eq "HW" && $no_hw) { return 0; }
1128                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1129                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1130                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1131                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1132                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1133                         if ($keyword eq "CMS" && $no_cms) { return 0; }
1134                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1135
1136                         # Nothing recognise as true
1137                         return 1;
1138                 }
1139         }
1140
1141         foreach $k (@keywords) {
1142                 if ($k =~ /^!(.*)$/) {
1143                         $falsesum += &recognise($1,$platforms);
1144                 } else {
1145                         $truesum *= &recognise($k,$platforms);
1146                 }
1147         }
1148         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1149         return (!$falsesum) && $truesum;
1150 }
1151
1152 sub print_test_file
1153 {
1154         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1155         my $n = 1; my @e; my @r;
1156         my $sym; my $prev = ""; my $prefSSLeay;
1157
1158         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1159         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1160         @symbols=((sort @e),(sort @r));
1161
1162         foreach $sym (@symbols) {
1163                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1164                 my $v = 0;
1165                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1166                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1167                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1168                 if (!defined($nums{$s})) {
1169                         print STDERR "Warning: $s does not have a number assigned\n"
1170                             if(!$do_update);
1171                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1172                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1173                         if ($prev eq $s2) {
1174                                 print OUT "\t/* The following has already appeared previously */\n";
1175                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1176                         }
1177                         $prev = $s2;    # To warn about duplicates...
1178
1179                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1180                         if ($v) {
1181                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1182                         } else {
1183                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1184                         }
1185                 }
1186         }
1187 }
1188
1189 sub get_version {
1190    local *MF;
1191    my $v = '?';
1192    open MF, 'Makefile' or return $v;
1193    while (<MF>) {
1194      $v = $1, last if /^VERSION=(.*?)\s*$/;
1195    }
1196    close MF;
1197    return $v;
1198 }
1199
1200 sub print_def_file
1201 {
1202         (*OUT,my $name,*nums,my @symbols)=@_;
1203         my $n = 1; my @e; my @r; my @v; my $prev="";
1204         my $liboptions="";
1205         my $libname = $name;
1206         my $http_vendor = 'www.openssl.org/';
1207         my $version = get_version();
1208         my $what = "OpenSSL: implementation of Secure Socket Layer";
1209         my $description = "$what $version, $name - http://$http_vendor";
1210
1211         if ($W32)
1212                 { $libname.="32"; }
1213         elsif ($W16)
1214                 { $libname.="16"; }
1215         elsif ($OS2)
1216                 { # DLL names should not clash on the whole system.
1217                   # However, they should not have any particular relationship
1218                   # to the name of the static library.  Chose descriptive names
1219                   # (must be at most 8 chars).
1220                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1221                   $libname = $translate{$name} || $name;
1222                   $liboptions = <<EOO;
1223 INITINSTANCE
1224 DATA MULTIPLE NONSHARED
1225 EOO
1226                   # Vendor field can't contain colon, drat; so we omit http://
1227                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1228                 }
1229
1230         print OUT <<"EOF";
1231 ;
1232 ; Definition file for the DLL version of the $name library from OpenSSL
1233 ;
1234
1235 LIBRARY         $libname        $liboptions
1236
1237 EOF
1238
1239         if ($W16) {
1240                 print <<"EOF";
1241 CODE            PRELOAD MOVEABLE
1242 DATA            PRELOAD MOVEABLE SINGLE
1243
1244 EXETYPE         WINDOWS
1245
1246 HEAPSIZE        4096
1247 STACKSIZE       8192
1248
1249 EOF
1250         }
1251
1252         print "EXPORTS\n";
1253
1254         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1255         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1256         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1257         @symbols=((sort @e),(sort @r), (sort @v));
1258
1259
1260         foreach $sym (@symbols) {
1261                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1262                 my $v = 0;
1263                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1264                 if (!defined($nums{$s})) {
1265                         printf STDERR "Warning: $s does not have a number assigned\n"
1266                             if(!$do_update);
1267                 } else {
1268                         (my $n, my $dummy) = split /\\/, $nums{$s};
1269                         my %pf = ();
1270                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1271                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1272                         if (is_valid($p,1) && is_valid($a,0)) {
1273                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1274                                 if ($prev eq $s2) {
1275                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1276                                 }
1277                                 $prev = $s2;    # To warn about duplicates...
1278                                 if($v && !$OS2) {
1279                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1280                                 } else {
1281                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1282                                 }
1283                         }
1284                 }
1285         }
1286         printf OUT "\n";
1287 }
1288
1289 sub load_numbers
1290 {
1291         my($name)=@_;
1292         my(@a,%ret);
1293
1294         $max_num = 0;
1295         $num_noinfo = 0;
1296         $prev = "";
1297         $prev_cnt = 0;
1298
1299         open(IN,"<$name") || die "unable to open $name:$!\n";
1300         while (<IN>) {
1301                 chop;
1302                 s/#.*$//;
1303                 next if /^\s*$/;
1304                 @a=split;
1305                 if (defined $ret{$a[0]}) {
1306                         # This is actually perfectly OK
1307                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1308                 }
1309                 if ($max_num > $a[1]) {
1310                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1311                 }
1312                 elsif ($max_num == $a[1]) {
1313                         # This is actually perfectly OK
1314                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1315                         if ($a[0] eq $prev) {
1316                                 $prev_cnt++;
1317                                 $a[0] .= "{$prev_cnt}";
1318                         }
1319                 }
1320                 else {
1321                         $prev_cnt = 0;
1322                 }
1323                 if ($#a < 2) {
1324                         # Existence will be proven later, in do_defs
1325                         $ret{$a[0]}=$a[1];
1326                         $num_noinfo++;
1327                 } else {
1328                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1329                 }
1330                 $max_num = $a[1] if $a[1] > $max_num;
1331                 $prev=$a[0];
1332         }
1333         if ($num_noinfo) {
1334                 print STDERR "Warning: $num_noinfo symbols were without info.";
1335                 if ($do_rewrite) {
1336                         printf STDERR "  The rewrite will fix this.\n";
1337                 } else {
1338                         printf STDERR "  You should do a rewrite to fix this.\n";
1339                 }
1340         }
1341         close(IN);
1342         return(%ret);
1343 }
1344
1345 sub parse_number
1346 {
1347         (my $str, my $what) = @_;
1348         (my $n, my $i) = split(/\\/,$str);
1349         if ($what eq "n") {
1350                 return $n;
1351         } else {
1352                 return $i;
1353         }
1354 }
1355
1356 sub rewrite_numbers
1357 {
1358         (*OUT,$name,*nums,@symbols)=@_;
1359         my $thing;
1360
1361         print STDERR "Rewriting $name\n";
1362
1363         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1364         my $r; my %r; my %rsyms;
1365         foreach $r (@r) {
1366                 (my $s, my $i) = split /\\/, $r;
1367                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1368                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1369                 $r{$a} = $s."\\".$i;
1370                 $rsyms{$s} = 1;
1371         }
1372
1373         my %syms = ();
1374         foreach $_ (@symbols) {
1375                 (my $n, my $i) = split /\\/;
1376                 $syms{$n} = 1;
1377         }
1378
1379         my @s=sort {
1380             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1381             || $a cmp $b
1382         } keys %nums;
1383         foreach $sym (@s) {
1384                 (my $n, my $i) = split /\\/, $nums{$sym};
1385                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1386                 next if defined($rsyms{$sym});
1387                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1388                 $i="NOEXIST::FUNCTION:"
1389                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1390                 my $s2 = $sym;
1391                 $s2 =~ s/\{[0-9]+\}$//;
1392                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1393                 if (exists $r{$sym}) {
1394                         (my $s, $i) = split /\\/,$r{$sym};
1395                         my $s2 = $s;
1396                         $s2 =~ s/\{[0-9]+\}$//;
1397                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1398                 }
1399         }
1400 }
1401
1402 sub update_numbers
1403 {
1404         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1405         my $new_syms = 0;
1406
1407         print STDERR "Updating $name numbers\n";
1408
1409         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1410         my $r; my %r; my %rsyms;
1411         foreach $r (@r) {
1412                 (my $s, my $i) = split /\\/, $r;
1413                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1414                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1415                 $r{$a} = $s."\\".$i;
1416                 $rsyms{$s} = 1;
1417         }
1418
1419         foreach $sym (@symbols) {
1420                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1421                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1422                 next if defined($rsyms{$sym});
1423                 die "ERROR: Symbol $sym had no info attached to it."
1424                     if $i eq "";
1425                 if (!exists $nums{$s}) {
1426                         $new_syms++;
1427                         my $s2 = $s;
1428                         $s2 =~ s/\{[0-9]+\}$//;
1429                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1430                         if (exists $r{$s}) {
1431                                 ($s, $i) = split /\\/,$r{$s};
1432                                 $s =~ s/\{[0-9]+\}$//;
1433                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1434                         }
1435                 }
1436         }
1437         if($new_syms) {
1438                 print STDERR "$new_syms New symbols added\n";
1439         } else {
1440                 print STDERR "No New symbols Added\n";
1441         }
1442 }
1443
1444 sub check_existing
1445 {
1446         (*nums, my @symbols)=@_;
1447         my %existing; my @remaining;
1448         @remaining=();
1449         foreach $sym (@symbols) {
1450                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1451                 $existing{$s}=1;
1452         }
1453         foreach $sym (keys %nums) {
1454                 if (!exists $existing{$sym}) {
1455                         push @remaining, $sym;
1456                 }
1457         }
1458         if(@remaining) {
1459                 print STDERR "The following symbols do not seem to exist:\n";
1460                 foreach $sym (@remaining) {
1461                         print STDERR "\t",$sym,"\n";
1462                 }
1463         }
1464 }
1465