util/mkdef.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # generate a .def file
   4 #
   5 # It does this by parsing the header files and looking for the
   6 # prototyped functions: it then prunes the output.
   7 #
   8 # Intermediary files are created, call libeay.num and ssleay.num,...
   9 # Previously, they had the following format:
  10 #
  11 #       routine-name    nnnn
  12 #
  13 # But that isn't enough for a number of reasons, the first on being that
  14 # this format is (needlessly) very Win32-centric, and even then...
  15 # One of the biggest problems is that there's no information about what
  16 # routines should actually be used, which varies with what crypto algorithms
  17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
  18 # need to keep track of the global variables as well as the functions.
  19 #
  20 # So, a remake of this script is done so as to include information on the
  21 # kind of symbol it is (function or variable) and what algorithms they're
  22 # part of.  This will allow easy translating to .def files or the corresponding
  23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
  24 # file).
  25 #
  26 # The format now becomes:
  27 #
  28 #       routine-name    nnnn    info
  29 #
  30 # and the "info" part is actually a colon-separated string of fields with
  31 # the following meaning:
  32 #
  33 #       existence:platform:kind:algorithms
  34 #
  35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
  36 #   found somewhere in the source,
  37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
  38 #   comma-separated list of the platform, just as they are if the symbol exists
  39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
  40 #   symbol name variants for platforms where the names are too long for the
  41 #   compiler or linker, or if the systems is case insensitive and there is a
  42 #   clash, or the symbol is implemented differently (see
  43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
  44 #   in the file crypto/symhacks.h.
  45 #   The semantics for the platforms is that every item is checked against the
  46 #   environment.  For the negative items ("!FOO"), if any of them is false
  47 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
  48 #   used.  For the positive itms, if all of them are false in the environment,
  49 #   the corresponding symbol can't be used.  Any combination of positive and
  50 #   negative items are possible, and of course leave room for some redundancy.
  51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
  52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
  53 #   exclude symbols that are part of an algorithm that some user wants to
  54 #   exclude.
  55 #
  56
  57 my $debug=0;
  58
  59 my $crypto_num= "util/libeay.num";
  60 my $ssl_num=    "util/ssleay.num";
  61 my $libname;
  62
  63 my $do_update = 0;
  64 my $do_rewrite = 1;
  65 my $do_crypto = 0;
  66 my $do_ssl = 0;
  67 my $do_ctest = 0;
  68 my $do_ctestall = 0;
  69 my $do_checkexist = 0;
  70
  71 my $VMSVAX=0;
  72 my $VMSAlpha=0;
  73 my $VMS=0;
  74 my $W32=0;
  75 my $W16=0;
  76 my $NT=0;
  77 my $OS2=0;
  78 # Set this to make typesafe STACK definitions appear in DEF
  79 my $safe_stack_def = 0;
  80
  81 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
  82                         "EXPORT_VAR_AS_FUNCTION" );
  83 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
  84 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  85                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  86                          "SHA256", "SHA512", "RIPEMD",
  87                          "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA",
  88                          "HMAC", "AES", "WHIRLPOOL", "CAMELLIA",
  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                          # TLS
  99                          "TLSEXT", "PSK",
 100                          # Deprecated functions
 101                          "DEPRECATED" );
 102
 103 my $options="";
 104 open(IN,"<Makefile") || die "unable to open Makefile!\n";
 105 while(<IN>) {
 106     $options=$1 if (/^OPTIONS=(.*)$/);
 107 }
 108 close(IN);
 109
 110 # The following ciphers may be excluded (by Configure). This means functions
 111 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 112 # in directory xxx is ignored.
 113 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 114 my $no_cast; my $no_whirlpool; my $no_camellia;
 115 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 116 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 117 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
 118 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
 119 my $no_psk; my $no_tlsext;
 120
 121
 122 foreach (@ARGV, split(/ /, $options))
 123         {
 124         $debug=1 if $_ eq "debug";
 125         $W32=1 if $_ eq "32";
 126         $W16=1 if $_ eq "16";
 127         if($_ eq "NT") {
 128                 $W32 = 1;
 129                 $NT = 1;
 130         }
 131         if ($_ eq "VMS-VAX") {
 132                 $VMS=1;
 133                 $VMSVAX=1;
 134         }
 135         if ($_ eq "VMS-Alpha") {
 136                 $VMS=1;
 137                 $VMSAlpha=1;
 138         }
 139         $VMS=1 if $_ eq "VMS";
 140         $OS2=1 if $_ eq "OS2";
 141
 142         $do_ssl=1 if $_ eq "ssleay";
 143         if ($_ eq "ssl") {
 144                 $do_ssl=1;
 145                 $libname=$_
 146         }
 147         $do_crypto=1 if $_ eq "libeay";
 148         if ($_ eq "crypto") {
 149                 $do_crypto=1;
 150                 $libname=$_;
 151         }
 152         $no_static_engine=1 if $_ eq "no-static-engine";
 153         $no_static_engine=0 if $_ eq "enable-static-engine";
 154         $do_update=1 if $_ eq "update";
 155         $do_rewrite=1 if $_ eq "rewrite";
 156         $do_ctest=1 if $_ eq "ctest";
 157         $do_ctestall=1 if $_ eq "ctestall";
 158         $do_checkexist=1 if $_ eq "exist";
 159         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 160
 161         if    (/^no-rc2$/)      { $no_rc2=1; }
 162         elsif (/^no-rc4$/)      { $no_rc4=1; }
 163         elsif (/^no-rc5$/)      { $no_rc5=1; }
 164         elsif (/^no-idea$/)     { $no_idea=1; }
 165         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 166         elsif (/^no-bf$/)       { $no_bf=1; }
 167         elsif (/^no-cast$/)     { $no_cast=1; }
 168         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
 169         elsif (/^no-md2$/)      { $no_md2=1; }
 170         elsif (/^no-md4$/)      { $no_md4=1; }
 171         elsif (/^no-md5$/)      { $no_md5=1; }
 172         elsif (/^no-sha$/)      { $no_sha=1; }
 173         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 174         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 175         elsif (/^no-rsa$/)      { $no_rsa=1; }
 176         elsif (/^no-dsa$/)      { $no_dsa=1; }
 177         elsif (/^no-dh$/)       { $no_dh=1; }
 178         elsif (/^no-ec$/)       { $no_ec=1; }
 179         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
 180         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
 181         elsif (/^no-hmac$/)     { $no_hmac=1; }
 182         elsif (/^no-aes$/)      { $no_aes=1; }
 183         elsif (/^no-camellia$/) { $no_camellia=1; }
 184         elsif (/^no-evp$/)      { $no_evp=1; }
 185         elsif (/^no-lhash$/)    { $no_lhash=1; }
 186         elsif (/^no-stack$/)    { $no_stack=1; }
 187         elsif (/^no-err$/)      { $no_err=1; }
 188         elsif (/^no-buffer$/)   { $no_buffer=1; }
 189         elsif (/^no-bio$/)      { $no_bio=1; }
 190         #elsif (/^no-locking$/) { $no_locking=1; }
 191         elsif (/^no-comp$/)     { $no_comp=1; }
 192         elsif (/^no-dso$/)      { $no_dso=1; }
 193         elsif (/^no-krb5$/)     { $no_krb5=1; }
 194         elsif (/^no-engine$/)   { $no_engine=1; }
 195         elsif (/^no-hw$/)       { $no_hw=1; }
 196         elsif (/^no-gmp$/)      { $no_gmp=1; }
 197         }
 198
 199
 200 if (!$libname) {
 201         if ($do_ssl) {
 202                 $libname="SSLEAY";
 203         }
 204         if ($do_crypto) {
 205                 $libname="LIBEAY";
 206         }
 207 }
 208
 209 # If no platform is given, assume WIN32
 210 if ($W32 + $W16 + $VMS + $OS2 == 0) {
 211         $W32 = 1;
 212 }
 213
 214 # Add extra knowledge
 215 if ($W16) {
 216         $no_fp_api=1;
 217 }
 218
 219 if (!$do_ssl && !$do_crypto)
 220         {
 221         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
 222         exit(1);
 223         }
 224
 225 %ssl_list=&load_numbers($ssl_num);
 226 $max_ssl = $max_num;
 227 %crypto_list=&load_numbers($crypto_num);
 228 $max_crypto = $max_num;
 229
 230 my $ssl="ssl/ssl.h";
 231 $ssl.=" ssl/kssl.h";
 232 $ssl.=" ssl/tls1.h";
 233
 234 my $crypto ="crypto/crypto.h";
 235 $crypto.=" crypto/o_dir.h";
 236 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
 237 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
 238 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
 239 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
 240 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
 241 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
 242 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
 243 $crypto.=" crypto/whrlpool/whrlpool.h" ;
 244 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
 245 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
 246 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
 247 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
 248 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
 249 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
 250 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
 251 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
 252
 253 $crypto.=" crypto/bn/bn.h";
 254 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
 255 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
 256 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
 257 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
 258 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
 259 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
 260 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
 261
 262 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
 263 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
 264 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
 265 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
 266 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
 267 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
 268 $crypto.=" crypto/conf/conf.h";
 269 $crypto.=" crypto/txt_db/txt_db.h";
 270
 271 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
 272 $crypto.=" crypto/objects/objects.h";
 273 $crypto.=" crypto/pem/pem.h";
 274 #$crypto.=" crypto/meth/meth.h";
 275 $crypto.=" crypto/asn1/asn1.h";
 276 $crypto.=" crypto/asn1/asn1t.h";
 277 $crypto.=" crypto/asn1/asn1_mac.h";
 278 $crypto.=" crypto/err/err.h" ; # unless $no_err;
 279 $crypto.=" crypto/pkcs7/pkcs7.h";
 280 $crypto.=" crypto/pkcs12/pkcs12.h";
 281 $crypto.=" crypto/x509/x509.h";
 282 $crypto.=" crypto/x509/x509_vfy.h";
 283 $crypto.=" crypto/x509v3/x509v3.h";
 284 $crypto.=" crypto/ts/ts.h";
 285 $crypto.=" crypto/rand/rand.h";
 286 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
 287 $crypto.=" crypto/ocsp/ocsp.h";
 288 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
 289 $crypto.=" crypto/krb5/krb5_asn.h";
 290 $crypto.=" crypto/store/store.h";
 291 $crypto.=" crypto/pqueue/pqueue.h";
 292
 293 my $symhacks="crypto/symhacks.h";
 294
 295 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 296 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 297
 298 if ($do_update) {
 299
 300 if ($do_ssl == 1) {
 301
 302         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 303         if ($do_rewrite == 1) {
 304                 open(OUT, ">$ssl_num");
 305                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 306         } else {
 307                 open(OUT, ">>$ssl_num");
 308         }
 309         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 310         close OUT;
 311 }
 312
 313 if($do_crypto == 1) {
 314
 315         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 316         if ($do_rewrite == 1) {
 317                 open(OUT, ">$crypto_num");
 318                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 319         } else {
 320                 open(OUT, ">>$crypto_num");
 321         }
 322         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 323         close OUT;
 324 }
 325
 326 } elsif ($do_checkexist) {
 327         &check_existing(*ssl_list, @ssl_symbols)
 328                 if $do_ssl == 1;
 329         &check_existing(*crypto_list, @crypto_symbols)
 330                 if $do_crypto == 1;
 331 } elsif ($do_ctest || $do_ctestall) {
 332
 333         print <<"EOF";
 334
 335 /* Test file to check all DEF file symbols are present by trying
 336  * to link to all of them. This is *not* intended to be run!
 337  */
 338
 339 int main()
 340 {
 341 EOF
 342         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 343                 if $do_ssl == 1;
 344
 345         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 346                 if $do_crypto == 1;
 347
 348         print "}\n";
 349
 350 } else {
 351
 352         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
 353                 if $do_ssl == 1;
 354
 355         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
 356                 if $do_crypto == 1;
 357
 358 }
 359
 360
 361 sub do_defs
 362 {
 363         my($name,$files,$symhacksfile)=@_;
 364         my $file;
 365         my @ret;
 366         my %syms;
 367         my %platform;           # For anything undefined, we assume ""
 368         my %kind;               # For anything undefined, we assume "FUNCTION"
 369         my %algorithm;          # For anything undefined, we assume ""
 370         my %variant;
 371         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
 372                                 # is the same name as the original.
 373         my $cpp;
 374         my %unknown_algorithms = ();
 375
 376         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 377                 {
 378                 print STDERR "DEBUG: starting on $file:\n" if $debug;
 379                 open(IN,"<$file") || die "unable to open $file:$!\n";
 380                 my $line = "", my $def= "";
 381                 my %tag = (
 382                         (map { $_ => 0 } @known_platforms),
 383                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 384                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 385                         NOPROTO         => 0,
 386                         PERL5           => 0,
 387                         _WINDLL         => 0,
 388                         CONST_STRICT    => 0,
 389                         TRUE            => 1,
 390                 );
 391                 my $symhacking = $file eq $symhacksfile;
 392                 my @current_platforms = ();
 393                 my @current_algorithms = ();
 394
 395                 # params: symbol, alias, platforms, kind
 396                 # The reason to put this subroutine in a variable is that
 397                 # it will otherwise create it's own, unshared, version of
 398                 # %tag and %variant...
 399                 my $make_variant = sub
 400                 {
 401                         my ($s, $a, $p, $k) = @_;
 402                         my ($a1, $a2);
 403
 404                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
 405                         if (defined($p))
 406                         {
 407                                 $a1 = join(",",$p,
 408                                            grep(!/^$/,
 409                                                 map { $tag{$_} == 1 ? $_ : "" }
 410                                                 @known_platforms));
 411                         }
 412                         else
 413                         {
 414                                 $a1 = join(",",
 415                                            grep(!/^$/,
 416                                                 map { $tag{$_} == 1 ? $_ : "" }
 417                                                 @known_platforms));
 418                         }
 419                         $a2 = join(",",
 420                                    grep(!/^$/,
 421                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
 422                                         @known_ossl_platforms));
 423                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
 424                         if ($a1 eq "") { $a1 = $a2; }
 425                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 426                         if ($a eq $s)
 427                         {
 428                                 if (!defined($variant_cnt{$s}))
 429                                 {
 430                                         $variant_cnt{$s} = 0;
 431                                 }
 432                                 $variant_cnt{$s}++;
 433                                 $a .= "{$variant_cnt{$s}}";
 434                         }
 435                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
 436                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
 437                         if (!grep(/^$togrep$/,
 438                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
 439                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
 440                                 $variant{$s} .= $toadd;
 441                         }
 442                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
 443                 };
 444
 445                 print STDERR "DEBUG: parsing ----------\n" if $debug;
 446                 while(<IN>) {
 447                         if (/\/\* Error codes for the \w+ functions\. \*\//)
 448                                 {
 449                                 undef @tag;
 450                                 last;
 451                                 }
 452                         if ($line ne '') {
 453                                 $_ = $line . $_;
 454                                 $line = '';
 455                         }
 456
 457                         if (/\\$/) {
 458                                 chomp; # remove eol
 459                                 chop; # remove ending backslash
 460                                 $line = $_;
 461                                 next;
 462                         }
 463
 464                         if(/\/\*/) {
 465                                 if (not /\*\//) {       # multiline comment...
 466                                         $line = $_;     # ... just accumulate
 467                                         next;
 468                                 } else {
 469                                         s/\/\*.*?\*\///gs;# wipe it
 470                                 }
 471                         }
 472
 473                         if ($cpp) {
 474                                 $cpp++ if /^#\s*if/;
 475                                 $cpp-- if /^#\s*endif/;
 476                                 next;
 477                         }
 478                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
 479
 480                         s/{[^{}]*}//gs;                      # ignore {} blocks
 481                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
 482                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 483                         if (/^\#\s*ifndef\s+(.*)/) {
 484                                 push(@tag,"-");
 485                                 push(@tag,$1);
 486                                 $tag{$1}=-1;
 487                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 488                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 489                                 push(@tag,"-");
 490                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 491                                         my $tmp_1 = $1;
 492                                         my $tmp_;
 493                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 494                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 495                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 496                                                 push(@tag,$1);
 497                                                 $tag{$1}=-1;
 498                                         }
 499                                 } else {
 500                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 501                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 502                                         push(@tag,$1);
 503                                         $tag{$1}=-1;
 504                                 }
 505                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
 506                                 push(@tag,"-");
 507                                 push(@tag,$1);
 508                                 $tag{$1}=1;
 509                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 510                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 511                                 push(@tag,"-");
 512                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 513                                         my $tmp_1 = $1;
 514                                         my $tmp_;
 515                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 516                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 517                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 518                                                 push(@tag,$1);
 519                                                 $tag{$1}=1;
 520                                         }
 521                                 } else {
 522                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 523                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 524                                         push(@tag,$1);
 525                                         $tag{$1}=1;
 526                                 }
 527                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 528                                 my $tag_i = $#tag;
 529                                 while($tag[$tag_i] ne "-") {
 530                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 531                                                 $tag{$tag[$tag_i]}=2;
 532                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 533                                         }
 534                                         $tag_i--;
 535                                 }
 536                         } elsif (/^\#\s*endif/) {
 537                                 my $tag_i = $#tag;
 538                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
 539                                         my $t=$tag[$tag_i];
 540                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 541                                         if ($tag{$t}==2) {
 542                                                 $tag{$t}=-1;
 543                                         } else {
 544                                                 $tag{$t}=0;
 545                                         }
 546                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 547                                         pop(@tag);
 548                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 549                                                 $t=$1;
 550                                         } else {
 551                                                 $t="";
 552                                         }
 553                                         if ($t ne ""
 554                                             && !grep(/^$t$/, @known_algorithms)) {
 555                                                 $unknown_algorithms{$t} = 1;
 556                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 557                                         }
 558                                         $tag_i--;
 559                                 }
 560                                 pop(@tag);
 561                         } elsif (/^\#\s*else/) {
 562                                 my $tag_i = $#tag;
 563                                 while($tag[$tag_i] ne "-") {
 564                                         my $t=$tag[$tag_i];
 565                                         $tag{$t}= -$tag{$t};
 566                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 567                                         $tag_i--;
 568                                 }
 569                         } elsif (/^\#\s*if\s+1/) {
 570                                 push(@tag,"-");
 571                                 # Dummy tag
 572                                 push(@tag,"TRUE");
 573                                 $tag{"TRUE"}=1;
 574                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 575                         } elsif (/^\#\s*if\s+0/) {
 576                                 push(@tag,"-");
 577                                 # Dummy tag
 578                                 push(@tag,"TRUE");
 579                                 $tag{"TRUE"}=-1;
 580                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 581                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 582                                  && $symhacking && $tag{'TRUE'} != -1) {
 583                                 # This is for aliasing.  When we find an alias,
 584                                 # we have to invert
 585                                 &$make_variant($1,$2);
 586                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
 587                         }
 588                         if (/^\#/) {
 589                                 @current_platforms =
 590                                     grep(!/^$/,
 591                                          map { $tag{$_} == 1 ? $_ :
 592                                                    $tag{$_} == -1 ? "!".$_  : "" }
 593                                          @known_platforms);
 594                                 push @current_platforms
 595                                     , grep(!/^$/,
 596                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 597                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 598                                            @known_ossl_platforms);
 599                                 @current_algorithms =
 600                                     grep(!/^$/,
 601                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 602                                          @known_algorithms);
 603                                 $def .=
 604                                     "#INFO:"
 605                                         .join(',',@current_platforms).":"
 606                                             .join(',',@current_algorithms).";";
 607                                 next;
 608                         }
 609                         if ($tag{'TRUE'} != -1) {
 610                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 611                                         next;
 612                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 613                                         $def .= "int d2i_$3(void);";
 614                                         $def .= "int i2d_$3(void);";
 615                                         # Variant for platforms that do not
 616                                         # have to access globale variables
 617                                         # in shared libraries through functions
 618                                         $def .=
 619                                             "#INFO:"
 620                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 621                                                     .join(',',@current_algorithms).";";
 622                                         $def .= "OPENSSL_EXTERN int $2_it;";
 623                                         $def .=
 624                                             "#INFO:"
 625                                                 .join(',',@current_platforms).":"
 626                                                     .join(',',@current_algorithms).";";
 627                                         # Variant for platforms that have to
 628                                         # access globale variables in shared
 629                                         # libraries through functions
 630                                         &$make_variant("$2_it","$2_it",
 631                                                       "EXPORT_VAR_AS_FUNCTION",
 632                                                       "FUNCTION");
 633                                         next;
 634                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 635                                         $def .= "int d2i_$3(void);";
 636                                         $def .= "int i2d_$3(void);";
 637                                         $def .= "int $3_free(void);";
 638                                         $def .= "int $3_new(void);";
 639                                         # Variant for platforms that do not
 640                                         # have to access globale variables
 641                                         # in shared libraries through functions
 642                                         $def .=
 643                                             "#INFO:"
 644                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 645                                                     .join(',',@current_algorithms).";";
 646                                         $def .= "OPENSSL_EXTERN int $2_it;";
 647                                         $def .=
 648                                             "#INFO:"
 649                                                 .join(',',@current_platforms).":"
 650                                                     .join(',',@current_algorithms).";";
 651                                         # Variant for platforms that have to
 652                                         # access globale variables in shared
 653                                         # libraries through functions
 654                                         &$make_variant("$2_it","$2_it",
 655                                                       "EXPORT_VAR_AS_FUNCTION",
 656                                                       "FUNCTION");
 657                                         next;
 658                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 659                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 660                                         $def .= "int d2i_$1(void);";
 661                                         $def .= "int i2d_$1(void);";
 662                                         $def .= "int $1_free(void);";
 663                                         $def .= "int $1_new(void);";
 664                                         # Variant for platforms that do not
 665                                         # have to access globale variables
 666                                         # in shared libraries through functions
 667                                         $def .=
 668                                             "#INFO:"
 669                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 670                                                     .join(',',@current_algorithms).";";
 671                                         $def .= "OPENSSL_EXTERN int $1_it;";
 672                                         $def .=
 673                                             "#INFO:"
 674                                                 .join(',',@current_platforms).":"
 675                                                     .join(',',@current_algorithms).";";
 676                                         # Variant for platforms that have to
 677                                         # access globale variables in shared
 678                                         # libraries through functions
 679                                         &$make_variant("$1_it","$1_it",
 680                                                       "EXPORT_VAR_AS_FUNCTION",
 681                                                       "FUNCTION");
 682                                         next;
 683                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 684                                         $def .= "int d2i_$2(void);";
 685                                         $def .= "int i2d_$2(void);";
 686                                         # Variant for platforms that do not
 687                                         # have to access globale variables
 688                                         # in shared libraries through functions
 689                                         $def .=
 690                                             "#INFO:"
 691                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 692                                                     .join(',',@current_algorithms).";";
 693                                         $def .= "OPENSSL_EXTERN int $2_it;";
 694                                         $def .=
 695                                             "#INFO:"
 696                                                 .join(',',@current_platforms).":"
 697                                                     .join(',',@current_algorithms).";";
 698                                         # Variant for platforms that have to
 699                                         # access globale variables in shared
 700                                         # libraries through functions
 701                                         &$make_variant("$2_it","$2_it",
 702                                                       "EXPORT_VAR_AS_FUNCTION",
 703                                                       "FUNCTION");
 704                                         next;
 705                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
 706                                         $def .= "int $1_free(void);";
 707                                         $def .= "int $1_new(void);";
 708                                         next;
 709                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 710                                         $def .= "int d2i_$2(void);";
 711                                         $def .= "int i2d_$2(void);";
 712                                         $def .= "int $2_free(void);";
 713                                         $def .= "int $2_new(void);";
 714                                         # Variant for platforms that do not
 715                                         # have to access globale variables
 716                                         # in shared libraries through functions
 717                                         $def .=
 718                                             "#INFO:"
 719                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 720                                                     .join(',',@current_algorithms).";";
 721                                         $def .= "OPENSSL_EXTERN int $2_it;";
 722                                         $def .=
 723                                             "#INFO:"
 724                                                 .join(',',@current_platforms).":"
 725                                                     .join(',',@current_algorithms).";";
 726                                         # Variant for platforms that have to
 727                                         # access globale variables in shared
 728                                         # libraries through functions
 729                                         &$make_variant("$2_it","$2_it",
 730                                                       "EXPORT_VAR_AS_FUNCTION",
 731                                                       "FUNCTION");
 732                                         next;
 733                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
 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 $1_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("$1_it","$1_it",
 750                                                       "EXPORT_VAR_AS_FUNCTION",
 751                                                       "FUNCTION");
 752                                         next;
 753                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 754                                         $def .= "int i2d_$1_NDEF(void);";
 755                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 756                                         next;
 757                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
 758                                         $def .= "int $1_print_ctx(void);";
 759                                         next;
 760                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 761                                         $def .= "int $2_print_ctx(void);";
 762                                         next;
 763                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 764                                         next;
 765                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 766                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
 767                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
 768                                         # Things not in Win16
 769                                         $def .=
 770                                             "#INFO:"
 771                                                 .join(',',"!WIN16",@current_platforms).":"
 772                                                     .join(',',@current_algorithms).";";
 773                                         $def .= "int PEM_read_$1(void);";
 774                                         $def .= "int PEM_write_$1(void);";
 775                                         $def .=
 776                                             "#INFO:"
 777                                                 .join(',',@current_platforms).":"
 778                                                     .join(',',@current_algorithms).";";
 779                                         # Things that are everywhere
 780                                         $def .= "int PEM_read_bio_$1(void);";
 781                                         $def .= "int PEM_write_bio_$1(void);";
 782                                         next;
 783                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 784                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 785                                         # Things not in Win16
 786                                         $def .=
 787                                             "#INFO:"
 788                                                 .join(',',"!WIN16",@current_platforms).":"
 789                                                     .join(',',@current_algorithms).";";
 790                                         $def .= "int PEM_write_$1(void);";
 791                                         $def .=
 792                                             "#INFO:"
 793                                                 .join(',',@current_platforms).":"
 794                                                     .join(',',@current_algorithms).";";
 795                                         # Things that are everywhere
 796                                         $def .= "int PEM_write_bio_$1(void);";
 797                                         next;
 798                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 799                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 800                                         # Things not in Win16
 801                                         $def .=
 802                                             "#INFO:"
 803                                                 .join(',',"!WIN16",@current_platforms).":"
 804                                                     .join(',',@current_algorithms).";";
 805                                         $def .= "int PEM_read_$1(void);";
 806                                         $def .=
 807                                             "#INFO:"
 808                                                 .join(',',@current_platforms).":"
 809                                                     .join(',',@current_algorithms).";";
 810                                         # Things that are everywhere
 811                                         $def .= "int PEM_read_bio_$1(void);";
 812                                         next;
 813                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 814                                         # Variant for platforms that do not
 815                                         # have to access globale variables
 816                                         # in shared libraries through functions
 817                                         $def .=
 818                                             "#INFO:"
 819                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
 820                                                     .join(',',@current_algorithms).";";
 821                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
 822                                         $def .=
 823                                             "#INFO:"
 824                                                 .join(',',@current_platforms).":"
 825                                                     .join(',',@current_algorithms).";";
 826                                         # Variant for platforms that have to
 827                                         # access globale variables in shared
 828                                         # libraries through functions
 829                                         &$make_variant("_shadow_$2","_shadow_$2",
 830                                                       "EXPORT_VAR_AS_FUNCTION",
 831                                                       "FUNCTION");
 832                                 } elsif ($tag{'CONST_STRICT'} != 1) {
 833                                         if (/\{|\/\*|\([^\)]*$/) {
 834                                                 $line = $_;
 835                                         } else {
 836                                                 $def .= $_;
 837                                         }
 838                                 }
 839                         }
 840                 }
 841                 close(IN);
 842
 843                 my $algs;
 844                 my $plays;
 845
 846                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
 847                 foreach (split /;/, $def) {
 848                         my $s; my $k = "FUNCTION"; my $p; my $a;
 849                         s/^[\n\s]*//g;
 850                         s/[\n\s]*$//g;
 851                         next if(/\#undef/);
 852                         next if(/typedef\W/);
 853                         next if(/\#define/);
 854
 855                         # Reduce argument lists to empty ()
 856                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 857                         while(/\(.*\)/s) {
 858                                 s/\([^\(\)]+\)/\{\}/gs;
 859                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 860                         }
 861                         # pretend as we didn't use curly braces: {} -> ()
 862                         s/\{\}/\(\)/gs;
 863
 864                         s/STACK_OF\(\)/void/gs;
 865
 866                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
 867                         if (/^\#INFO:([^:]*):(.*)$/) {
 868                                 $plats = $1;
 869                                 $algs = $2;
 870                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
 871                                 next;
 872                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
 873                                 $s = $1;
 874                                 $k = "VARIABLE";
 875                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
 876                         } elsif (/TYPEDEF_\w+_OF/s) {
 877                                 next;
 878                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
 879                                 $s = $1;                # a function name!
 880                                 print STDERR "DEBUG: found function $s\n" if $debug;
 881                         } elsif (/\(/ and not (/=/)) {
 882                                 print STDERR "File $file: cannot parse: $_;\n";
 883                                 next;
 884                         } else {
 885                                 next;
 886                         }
 887
 888                         $syms{$s} = 1;
 889                         $kind{$s} = $k;
 890
 891                         $p = $plats;
 892                         $a = $algs;
 893                         $a .= ",BF" if($s =~ /EVP_bf/);
 894                         $a .= ",CAST" if($s =~ /EVP_cast/);
 895                         $a .= ",DES" if($s =~ /EVP_des/);
 896                         $a .= ",DSA" if($s =~ /EVP_dss/);
 897                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 898                         $a .= ",MD2" if($s =~ /EVP_md2/);
 899                         $a .= ",MD4" if($s =~ /EVP_md4/);
 900                         $a .= ",MD5" if($s =~ /EVP_md5/);
 901                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 902                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 903                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 904                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 905                         $a .= ",SHA" if($s =~ /EVP_sha/);
 906                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 907                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 908                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 909                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 910
 911                         $platform{$s} =
 912                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
 913                         $algorithm{$s} .= ','.$a;
 914
 915                         if (defined($variant{$s})) {
 916                                 foreach $v (split /;/,$variant{$s}) {
 917                                         (my $r, my $p, my $k) = split(/:/,$v);
 918                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
 919                                         $syms{$r} = 1;
 920                                         if (!defined($k)) { $k = $kind{$s}; }
 921                                         $kind{$r} = $k."(".$s.")";
 922                                         $algorithm{$r} = $algorithm{$s};
 923                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
 924                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
 925                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
 926                                 }
 927                         }
 928                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
 929                 }
 930         }
 931
 932         # Prune the returned symbols
 933
 934         delete $syms{"bn_dump1"};
 935         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 936
 937         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
 938         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
 939         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
 940         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
 941
 942         # Info we know about
 943
 944         push @ret, map { $_."\\".&info_string($_,"EXIST",
 945                                               $platform{$_},
 946                                               $kind{$_},
 947                                               $algorithm{$_}) } keys %syms;
 948
 949         if (keys %unknown_algorithms) {
 950                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 951                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 952         }
 953         return(@ret);
 954 }
 955
 956 # Param: string of comma-separated platform-specs.
 957 sub reduce_platforms
 958 {
 959         my ($platforms) = @_;
 960         my $pl = defined($platforms) ? $platforms : "";
 961         my %p = map { $_ => 0 } split /,/, $pl;
 962         my $ret;
 963
 964         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
 965             if $debug;
 966         # We do this, because if there's code like the following, it really
 967         # means the function exists in all cases and should therefore be
 968         # everywhere.  By increasing and decreasing, we may attain 0:
 969         #
 970         # ifndef WIN16
 971         #    int foo();
 972         # else
 973         #    int _fat foo();
 974         # endif
 975         foreach $platform (split /,/, $pl) {
 976                 if ($platform =~ /^!(.*)$/) {
 977                         $p{$1}--;
 978                 } else {
 979                         $p{$platform}++;
 980                 }
 981         }
 982         foreach $platform (keys %p) {
 983                 if ($p{$platform} == 0) { delete $p{$platform}; }
 984         }
 985
 986         delete $p{""};
 987
 988         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
 989         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
 990             if $debug;
 991         return $ret;
 992 }
 993
 994 sub info_string {
 995         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 996
 997         my %a = defined($algorithms) ?
 998             map { $_ => 1 } split /,/, $algorithms : ();
 999         my $k = defined($kind) ? $kind : "FUNCTION";
1000         my $ret;
1001         my $p = &reduce_platforms($platforms);
1002
1003         delete $a{""};
1004
1005         $ret = $exist;
1006         $ret .= ":".$p;
1007         $ret .= ":".$k;
1008         $ret .= ":".join(',',sort keys %a);
1009         return $ret;
1010 }
1011
1012 sub maybe_add_info {
1013         (my $name, *nums, my @symbols) = @_;
1014         my $sym;
1015         my $new_info = 0;
1016         my %syms=();
1017
1018         print STDERR "Updating $name info\n";
1019         foreach $sym (@symbols) {
1020                 (my $s, my $i) = split /\\/, $sym;
1021                 if (defined($nums{$s})) {
1022                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1023                         (my $n, my $dummy) = split /\\/, $nums{$s};
1024                         if (!defined($dummy) || $i ne $dummy) {
1025                                 $nums{$s} = $n."\\".$i;
1026                                 $new_info++;
1027                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1028                         }
1029                 }
1030                 $syms{$s} = 1;
1031         }
1032
1033         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1034         foreach $sym (@s) {
1035                 (my $n, my $i) = split /\\/, $nums{$sym};
1036                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1037                         $new_info++;
1038                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1039                 }
1040         }
1041         if ($new_info) {
1042                 print STDERR "$new_info old symbols got an info update\n";
1043                 if (!$do_rewrite) {
1044                         print STDERR "You should do a rewrite to fix this.\n";
1045                 }
1046         } else {
1047                 print STDERR "No old symbols needed info update\n";
1048         }
1049 }
1050
1051 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1052 sub is_valid
1053 {
1054         my ($keywords_txt,$platforms) = @_;
1055         my (@keywords) = split /,/,$keywords_txt;
1056         my ($falsesum, $truesum) = (0, 1);
1057
1058         # Param: one keyword
1059         sub recognise
1060         {
1061                 my ($keyword,$platforms) = @_;
1062
1063                 if ($platforms) {
1064                         # platforms
1065                         if ($keyword eq "VMS" && $VMS) { return 1; }
1066                         if ($keyword eq "WIN32" && $W32) { return 1; }
1067                         if ($keyword eq "WIN16" && $W16) { return 1; }
1068                         if ($keyword eq "WINNT" && $NT) { return 1; }
1069                         if ($keyword eq "OS2" && $OS2) { return 1; }
1070                         # Special platforms:
1071                         # EXPORT_VAR_AS_FUNCTION means that global variables
1072                         # will be represented as functions.  This currently
1073                         # only happens on VMS-VAX.
1074                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1075                                 return 1;
1076                         }
1077                         return 0;
1078                 } else {
1079                         # algorithms
1080                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1081                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1082                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1083                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1084                         if ($keyword eq "DES" && $no_des) { return 0; }
1085                         if ($keyword eq "BF" && $no_bf) { return 0; }
1086                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1087                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1088                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1089                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1090                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1091                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1092                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1093                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1094                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1095                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1096                         if ($keyword eq "DH" && $no_dh) { return 0; }
1097                         if ($keyword eq "EC" && $no_ec) { return 0; }
1098                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1099                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1100                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1101                         if ($keyword eq "AES" && $no_aes) { return 0; }
1102                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1103                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1104                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1105                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1106                         if ($keyword eq "ERR" && $no_err) { return 0; }
1107                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1108                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1109                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1110                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1111                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1112                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1113                         if ($keyword eq "HW" && $no_hw) { return 0; }
1114                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1115                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1116                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1117                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1118                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1119                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1120
1121                         # Nothing recognise as true
1122                         return 1;
1123                 }
1124         }
1125
1126         foreach $k (@keywords) {
1127                 if ($k =~ /^!(.*)$/) {
1128                         $falsesum += &recognise($1,$platforms);
1129                 } else {
1130                         $truesum *= &recognise($k,$platforms);
1131                 }
1132         }
1133         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1134         return (!$falsesum) && $truesum;
1135 }
1136
1137 sub print_test_file
1138 {
1139         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1140         my $n = 1; my @e; my @r;
1141         my $sym; my $prev = ""; my $prefSSLeay;
1142
1143         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1144         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1145         @symbols=((sort @e),(sort @r));
1146
1147         foreach $sym (@symbols) {
1148                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1149                 my $v = 0;
1150                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1151                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1152                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1153                 if (!defined($nums{$s})) {
1154                         print STDERR "Warning: $s does not have a number assigned\n"
1155                             if(!$do_update);
1156                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1157                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1158                         if ($prev eq $s2) {
1159                                 print OUT "\t/* The following has already appeared previously */\n";
1160                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1161                         }
1162                         $prev = $s2;    # To warn about duplicates...
1163
1164                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1165                         if ($v) {
1166                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1167                         } else {
1168                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1169                         }
1170                 }
1171         }
1172 }
1173
1174 sub get_version {
1175    local *MF;
1176    my $v = '?';
1177    open MF, 'Makefile' or return $v;
1178    while (<MF>) {
1179      $v = $1, last if /^VERSION=(.*?)\s*$/;
1180    }
1181    close MF;
1182    return $v;
1183 }
1184
1185 sub print_def_file
1186 {
1187         (*OUT,my $name,*nums,my @symbols)=@_;
1188         my $n = 1; my @e; my @r; my @v; my $prev="";
1189         my $liboptions="";
1190         my $libname = $name;
1191         my $http_vendor = 'www.openssl.org/';
1192         my $version = get_version();
1193         my $what = "OpenSSL: implementation of Secure Socket Layer";
1194         my $description = "$what $version, $name - http://$http_vendor";
1195
1196         if ($W32)
1197                 { $libname.="32"; }
1198         elsif ($W16)
1199                 { $libname.="16"; }
1200         elsif ($OS2)
1201                 { # DLL names should not clash on the whole system.
1202                   # However, they should not have any particular relationship
1203                   # to the name of the static library.  Chose descriptive names
1204                   # (must be at most 8 chars).
1205                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1206                   $libname = $translate{$name} || $name;
1207                   $liboptions = <<EOO;
1208 INITINSTANCE
1209 DATA MULTIPLE NONSHARED
1210 EOO
1211                   # Vendor field can't contain colon, drat; so we omit http://
1212                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1213                 }
1214
1215         print OUT <<"EOF";
1216 ;
1217 ; Definition file for the DLL version of the $name library from OpenSSL
1218 ;
1219
1220 LIBRARY         $libname        $liboptions
1221
1222 DESCRIPTION     '$description'
1223
1224 EOF
1225
1226         if ($W16) {
1227                 print <<"EOF";
1228 CODE            PRELOAD MOVEABLE
1229 DATA            PRELOAD MOVEABLE SINGLE
1230
1231 EXETYPE         WINDOWS
1232
1233 HEAPSIZE        4096
1234 STACKSIZE       8192
1235
1236 EOF
1237         }
1238
1239         print "EXPORTS\n";
1240
1241         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1242         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1243         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1244         @symbols=((sort @e),(sort @r), (sort @v));
1245
1246
1247         foreach $sym (@symbols) {
1248                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1249                 my $v = 0;
1250                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1251                 if (!defined($nums{$s})) {
1252                         printf STDERR "Warning: $s does not have a number assigned\n"
1253                             if(!$do_update);
1254                 } else {
1255                         (my $n, my $dummy) = split /\\/, $nums{$s};
1256                         my %pf = ();
1257                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1258                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1259                         if (is_valid($p,1) && is_valid($a,0)) {
1260                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1261                                 if ($prev eq $s2) {
1262                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1263                                 }
1264                                 $prev = $s2;    # To warn about duplicates...
1265                                 if($v && !$OS2) {
1266                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1267                                 } else {
1268                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1269                                 }
1270                         }
1271                 }
1272         }
1273         printf OUT "\n";
1274 }
1275
1276 sub load_numbers
1277 {
1278         my($name)=@_;
1279         my(@a,%ret);
1280
1281         $max_num = 0;
1282         $num_noinfo = 0;
1283         $prev = "";
1284         $prev_cnt = 0;
1285
1286         open(IN,"<$name") || die "unable to open $name:$!\n";
1287         while (<IN>) {
1288                 chop;
1289                 s/#.*$//;
1290                 next if /^\s*$/;
1291                 @a=split;
1292                 if (defined $ret{$a[0]}) {
1293                         # This is actually perfectly OK
1294                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1295                 }
1296                 if ($max_num > $a[1]) {
1297                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1298                 }
1299                 elsif ($max_num == $a[1]) {
1300                         # This is actually perfectly OK
1301                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1302                         if ($a[0] eq $prev) {
1303                                 $prev_cnt++;
1304                                 $a[0] .= "{$prev_cnt}";
1305                         }
1306                 }
1307                 else {
1308                         $prev_cnt = 0;
1309                 }
1310                 if ($#a < 2) {
1311                         # Existence will be proven later, in do_defs
1312                         $ret{$a[0]}=$a[1];
1313                         $num_noinfo++;
1314                 } else {
1315                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1316                 }
1317                 $max_num = $a[1] if $a[1] > $max_num;
1318                 $prev=$a[0];
1319         }
1320         if ($num_noinfo) {
1321                 print STDERR "Warning: $num_noinfo symbols were without info.";
1322                 if ($do_rewrite) {
1323                         printf STDERR "  The rewrite will fix this.\n";
1324                 } else {
1325                         printf STDERR "  You should do a rewrite to fix this.\n";
1326                 }
1327         }
1328         close(IN);
1329         return(%ret);
1330 }
1331
1332 sub parse_number
1333 {
1334         (my $str, my $what) = @_;
1335         (my $n, my $i) = split(/\\/,$str);
1336         if ($what eq "n") {
1337                 return $n;
1338         } else {
1339                 return $i;
1340         }
1341 }
1342
1343 sub rewrite_numbers
1344 {
1345         (*OUT,$name,*nums,@symbols)=@_;
1346         my $thing;
1347
1348         print STDERR "Rewriting $name\n";
1349
1350         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1351         my $r; my %r; my %rsyms;
1352         foreach $r (@r) {
1353                 (my $s, my $i) = split /\\/, $r;
1354                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1355                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1356                 $r{$a} = $s."\\".$i;
1357                 $rsyms{$s} = 1;
1358         }
1359
1360         my %syms = ();
1361         foreach $_ (@symbols) {
1362                 (my $n, my $i) = split /\\/;
1363                 $syms{$n} = 1;
1364         }
1365
1366         my @s=sort {
1367             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1368             || $a cmp $b
1369         } keys %nums;
1370         foreach $sym (@s) {
1371                 (my $n, my $i) = split /\\/, $nums{$sym};
1372                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1373                 next if defined($rsyms{$sym});
1374                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1375                 $i="NOEXIST::FUNCTION:"
1376                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1377                 my $s2 = $sym;
1378                 $s2 =~ s/\{[0-9]+\}$//;
1379                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1380                 if (exists $r{$sym}) {
1381                         (my $s, $i) = split /\\/,$r{$sym};
1382                         my $s2 = $s;
1383                         $s2 =~ s/\{[0-9]+\}$//;
1384                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1385                 }
1386         }
1387 }
1388
1389 sub update_numbers
1390 {
1391         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1392         my $new_syms = 0;
1393
1394         print STDERR "Updating $name numbers\n";
1395
1396         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1397         my $r; my %r; my %rsyms;
1398         foreach $r (@r) {
1399                 (my $s, my $i) = split /\\/, $r;
1400                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1401                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1402                 $r{$a} = $s."\\".$i;
1403                 $rsyms{$s} = 1;
1404         }
1405
1406         foreach $sym (@symbols) {
1407                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1408                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1409                 next if defined($rsyms{$sym});
1410                 die "ERROR: Symbol $sym had no info attached to it."
1411                     if $i eq "";
1412                 if (!exists $nums{$s}) {
1413                         $new_syms++;
1414                         my $s2 = $s;
1415                         $s2 =~ s/\{[0-9]+\}$//;
1416                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1417                         if (exists $r{$s}) {
1418                                 ($s, $i) = split /\\/,$r{$s};
1419                                 $s =~ s/\{[0-9]+\}$//;
1420                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1421                         }
1422                 }
1423         }
1424         if($new_syms) {
1425                 print STDERR "$new_syms New symbols added\n";
1426         } else {
1427                 print STDERR "No New symbols Added\n";
1428         }
1429 }
1430
1431 sub check_existing
1432 {
1433         (*nums, my @symbols)=@_;
1434         my %existing; my @remaining;
1435         @remaining=();
1436         foreach $sym (@symbols) {
1437                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1438                 $existing{$s}=1;
1439         }
1440         foreach $sym (keys %nums) {
1441                 if (!exists $existing{$sym}) {
1442                         push @remaining, $sym;
1443                 }
1444         }
1445         if(@remaining) {
1446                 print STDERR "The following symbols do not seem to exist:\n";
1447                 foreach $sym (@remaining) {
1448                         print STDERR "\t",$sym,"\n";
1449                 }
1450         }
1451 }
1452