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 replacements 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.  This script assumes those redefinitions are place in the file
  43 #   crypto/symhacks.h.
  44 #   The semantics for the platforms list is a bit complicated.  The rule of
  45 #   thumb is that the list is exclusive, but it seems to mean different things.
  46 #   So, if the list is all negatives (like "!VMS,!WIN16"), the symbol exists
  47 #   on all platforms except those listed.  If the list is all positives (like
  48 #   "VMS,WIN16"), the symbol exists only on those platforms and nowhere else.
  49 #   The combination of positives and negatives will act as if the positives
  50 #   weren't there.
  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
  62 my $do_update = 0;
  63 my $do_rewrite = 0;
  64 my $do_crypto = 0;
  65 my $do_ssl = 0;
  66 my $do_ctest = 0;
  67 my $do_ctestall = 0;
  68 my $do_checkexist = 0;
  69
  70 my $VMS=0;
  71 my $W32=0;
  72 my $W16=0;
  73 my $NT=0;
  74 # Set this to make typesafe STACK definitions appear in DEF
  75 my $safe_stack_def = 0;
  76
  77 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT" );
  78 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT" );
  79 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
  80                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
  81                          "RIPEMD",
  82                          "MDC2", "RSA", "DSA", "DH", "HMAC", "AES",
  83                          # Envelope "algorithms"
  84                          "EVP", "X509", "ASN1_TYPEDEFS",
  85                          # Helper "algorithms"
  86                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
  87                          "LOCKING",
  88                          # External "algorithms"
  89                          "FP_API", "STDIO", "SOCK", "KRB5" );
  90
  91 my $options="";
  92 open(IN,"<Makefile.ssl") || die "unable to open Makefile.ssl!\n";
  93 while(<IN>) {
  94     $options=$1 if (/^OPTIONS=(.*)$/);
  95 }
  96 close(IN);
  97
  98 # The following ciphers may be excluded (by Configure). This means functions
  99 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
 100 # in directory xxx is ignored.
 101 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
 102 my $no_cast;
 103 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 104 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
 105 my $no_fp_api;
 106
 107 foreach (@ARGV, split(/ /, $options))
 108         {
 109         $W32=1 if $_ eq "32";
 110         $W16=1 if $_ eq "16";
 111         if($_ eq "NT") {
 112                 $W32 = 1;
 113                 $NT = 1;
 114         }
 115         $VMS=1 if $_ eq "VMS";
 116
 117         $do_ssl=1 if $_ eq "ssleay";
 118         $do_ssl=1 if $_ eq "ssl";
 119         $do_crypto=1 if $_ eq "libeay";
 120         $do_crypto=1 if $_ eq "crypto";
 121         $do_update=1 if $_ eq "update";
 122         $do_rewrite=1 if $_ eq "rewrite";
 123         $do_ctest=1 if $_ eq "ctest";
 124         $do_ctestall=1 if $_ eq "ctestall";
 125         $do_checkexist=1 if $_ eq "exist";
 126         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 127
 128         if    (/^no-rc2$/)      { $no_rc2=1; }
 129         elsif (/^no-rc4$/)      { $no_rc4=1; }
 130         elsif (/^no-rc5$/)      { $no_rc5=1; }
 131         elsif (/^no-idea$/)     { $no_idea=1; }
 132         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
 133         elsif (/^no-bf$/)       { $no_bf=1; }
 134         elsif (/^no-cast$/)     { $no_cast=1; }
 135         elsif (/^no-md2$/)      { $no_md2=1; }
 136         elsif (/^no-md4$/)      { $no_md4=1; }
 137         elsif (/^no-md5$/)      { $no_md5=1; }
 138         elsif (/^no-sha$/)      { $no_sha=1; }
 139         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
 140         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
 141         elsif (/^no-rsa$/)      { $no_rsa=1; }
 142         elsif (/^no-dsa$/)      { $no_dsa=1; }
 143         elsif (/^no-dh$/)       { $no_dh=1; }
 144         elsif (/^no-hmac$/)     { $no_hmac=1; }
 145         elsif (/^no-aes$/)      { $no_aes=1; }
 146         elsif (/^no-evp$/)      { $no_evp=1; }
 147         elsif (/^no-lhash$/)    { $no_lhash=1; }
 148         elsif (/^no-stack$/)    { $no_stack=1; }
 149         elsif (/^no-err$/)      { $no_err=1; }
 150         elsif (/^no-buffer$/)   { $no_buffer=1; }
 151         elsif (/^no-bio$/)      { $no_bio=1; }
 152         #elsif (/^no-locking$/) { $no_locking=1; }
 153         elsif (/^no-comp$/)     { $no_comp=1; }
 154         elsif (/^no-dso$/)      { $no_dso=1; }
 155         elsif (/^no-krb5$/)     { $no_krb5=1; }
 156         }
 157
 158
 159 # If no platform is given, assume WIN32
 160 if ($W32 + $W16 + $VMS == 0) {
 161         $W32 = 1;
 162 }
 163
 164 # Add extra knowledge
 165 if ($W16) {
 166         $no_fp_api=1;
 167 }
 168
 169 if (!$do_ssl && !$do_crypto)
 170         {
 171         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT ]\n";
 172         exit(1);
 173         }
 174
 175 %ssl_list=&load_numbers($ssl_num);
 176 $max_ssl = $max_num;
 177 %crypto_list=&load_numbers($crypto_num);
 178 $max_crypto = $max_num;
 179
 180 my $ssl="ssl/ssl.h";
 181 $ssl.=" ssl/kssl.h";
 182
 183 my $crypto ="crypto/crypto.h";
 184 $crypto.=" crypto/des/des.h" unless $no_des;
 185 $crypto.=" crypto/idea/idea.h" unless $no_idea;
 186 $crypto.=" crypto/rc4/rc4.h" unless $no_rc4;
 187 $crypto.=" crypto/rc5/rc5.h" unless $no_rc5;
 188 $crypto.=" crypto/rc2/rc2.h" unless $no_rc2;
 189 $crypto.=" crypto/bf/blowfish.h" unless $no_bf;
 190 $crypto.=" crypto/cast/cast.h" unless $no_cast;
 191 $crypto.=" crypto/md2/md2.h" unless $no_md2;
 192 $crypto.=" crypto/md4/md4.h" unless $no_md4;
 193 $crypto.=" crypto/md5/md5.h" unless $no_md5;
 194 $crypto.=" crypto/mdc2/mdc2.h" unless $no_mdc2;
 195 $crypto.=" crypto/sha/sha.h" unless $no_sha;
 196 $crypto.=" crypto/ripemd/ripemd.h" unless $no_ripemd;
 197 $crypto.=" crypto/rijndael/rijndael.h" unless $no_aes;
 198 $crypto.=" crypto/rijndael/rd_fst.h" unless $no_aes;
 199
 200 $crypto.=" crypto/bn/bn.h";
 201 $crypto.=" crypto/rsa/rsa.h" unless $no_rsa;
 202 $crypto.=" crypto/dsa/dsa.h" unless $no_dsa;
 203 $crypto.=" crypto/dh/dh.h" unless $no_dh;
 204 $crypto.=" crypto/hmac/hmac.h" unless $no_hmac;
 205
 206 $crypto.=" crypto/engine/engine.h";
 207 $crypto.=" crypto/stack/stack.h" unless $no_stack;
 208 $crypto.=" crypto/buffer/buffer.h" unless $no_buffer;
 209 $crypto.=" crypto/bio/bio.h" unless $no_bio;
 210 $crypto.=" crypto/dso/dso.h" unless $no_dso;
 211 $crypto.=" crypto/lhash/lhash.h" unless $no_lhash;
 212 $crypto.=" crypto/conf/conf.h";
 213 $crypto.=" crypto/txt_db/txt_db.h";
 214
 215 $crypto.=" crypto/evp/evp.h" unless $no_evp;
 216 $crypto.=" crypto/objects/objects.h";
 217 $crypto.=" crypto/pem/pem.h";
 218 #$crypto.=" crypto/meth/meth.h";
 219 $crypto.=" crypto/asn1/asn1.h";
 220 $crypto.=" crypto/asn1/asn1t.h";
 221 $crypto.=" crypto/asn1/asn1_mac.h";
 222 $crypto.=" crypto/err/err.h" unless $no_err;
 223 $crypto.=" crypto/pkcs7/pkcs7.h";
 224 $crypto.=" crypto/pkcs12/pkcs12.h";
 225 $crypto.=" crypto/x509/x509.h";
 226 $crypto.=" crypto/x509/x509_vfy.h";
 227 $crypto.=" crypto/x509v3/x509v3.h";
 228 $crypto.=" crypto/rand/rand.h";
 229 $crypto.=" crypto/comp/comp.h" unless $no_comp;
 230 $crypto.=" crypto/ocsp/ocsp.h";
 231 $crypto.=" crypto/tmdiff.h";
 232
 233 my $symhacks="crypto/symhacks.h";
 234
 235 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
 236 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
 237
 238 if ($do_update) {
 239
 240 if ($do_ssl == 1) {
 241
 242         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
 243         if ($do_rewrite == 1) {
 244                 open(OUT, ">$ssl_num");
 245                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
 246                 close OUT;
 247         } else {
 248                 open(OUT, ">>$ssl_num");
 249         }
 250         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
 251         close OUT;
 252 }
 253
 254 if($do_crypto == 1) {
 255
 256         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
 257         if ($do_rewrite == 1) {
 258                 open(OUT, ">$crypto_num");
 259                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
 260         } else {
 261                 open(OUT, ">>$crypto_num");
 262         }
 263         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
 264         close OUT;
 265 }
 266
 267 } elsif ($do_checkexist) {
 268         &check_existing(*ssl_list, @ssl_symbols)
 269                 if $do_ssl == 1;
 270         &check_existing(*crypto_list, @crypto_symbols)
 271                 if $do_crypto == 1;
 272 } elsif ($do_ctest || $do_ctestall) {
 273
 274         print <<"EOF";
 275
 276 /* Test file to check all DEF file symbols are present by trying
 277  * to link to all of them. This is *not* intended to be run!
 278  */
 279
 280 int main()
 281 {
 282 EOF
 283         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
 284                 if $do_ssl == 1;
 285
 286         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
 287                 if $do_crypto == 1;
 288
 289         print "}\n";
 290
 291 } else {
 292
 293         &print_def_file(*STDOUT,"SSLEAY",*ssl_list,@ssl_symbols)
 294                 if $do_ssl == 1;
 295
 296         &print_def_file(*STDOUT,"LIBEAY",*crypto_list,@crypto_symbols)
 297                 if $do_crypto == 1;
 298
 299 }
 300
 301
 302 sub do_defs
 303 {
 304         my($name,$files,$symhacksfile)=@_;
 305         my $file;
 306         my @ret;
 307         my %syms;
 308         my %platform;           # For anything undefined, we assume ""
 309         my %kind;               # For anything undefined, we assume "FUNCTION"
 310         my %algorithm;          # For anything undefined, we assume ""
 311         my %rename;
 312         my $cpp;
 313         my %unknown_algorithms = ();
 314
 315         foreach $file (split(/\s+/,$symhacksfile." ".$files))
 316                 {
 317                 open(IN,"<$file") || die "unable to open $file:$!\n";
 318                 my $line = "", my $def= "";
 319                 my %tag = (
 320                         (map { $_ => 0 } @known_platforms),
 321                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
 322                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
 323                         NOPROTO         => 0,
 324                         PERL5           => 0,
 325                         _WINDLL         => 0,
 326                         CONST_STRICT    => 0,
 327                         TRUE            => 1,
 328                 );
 329                 my $symhacking = $file eq $symhacksfile;
 330                 my @current_platforms = ();
 331                 my @current_algorithms = ();
 332
 333                 while(<IN>) {
 334                         last if (/BEGIN ERROR CODES/);
 335                         if ($line ne '') {
 336                                 $_ = $line . $_;
 337                                 $line = '';
 338                         }
 339
 340                         if (/\\$/) {
 341                                 chomp; # remove eol
 342                                 chop; # remove ending backslash
 343                                 $line = $_;
 344                                 next;
 345                         }
 346
 347                         $cpp = 1 if /^\#.*ifdef.*cplusplus/;
 348                         if ($cpp) {
 349                                 $cpp = 0 if /^\#.*endif/;
 350                                 next;
 351                         }
 352
 353                         s/\/\*.*?\*\///gs;                   # ignore comments
 354                         s/{[^{}]*}//gs;                      # ignore {} blocks
 355                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
 356                         if (/^\#\s*ifndef\s+(.*)/) {
 357                                 push(@tag,"-");
 358                                 push(@tag,$1);
 359                                 $tag{$1}=-1;
 360                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 361                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
 362                                 push(@tag,"-");
 363                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
 364                                         my $tmp_1 = $1;
 365                                         my $tmp_;
 366                                         foreach $tmp_ (split '\&\&',$tmp_1) {
 367                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
 368                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 369                                                 push(@tag,$1);
 370                                                 $tag{$1}=-1;
 371                                         }
 372                                 } else {
 373                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
 374                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
 375                                         push(@tag,$1);
 376                                         $tag{$1}=-1;
 377                                 }
 378                         } elsif (/^\#\s*ifdef\s+(.*)/) {
 379                                 push(@tag,"-");
 380                                 push(@tag,$1);
 381                                 $tag{$1}=1;
 382                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 383                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
 384                                 push(@tag,"-");
 385                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
 386                                         my $tmp_1 = $1;
 387                                         my $tmp_;
 388                                         foreach $tmp_ (split '\|\|',$tmp_1) {
 389                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
 390                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 391                                                 push(@tag,$1);
 392                                                 $tag{$1}=1;
 393                                         }
 394                                 } else {
 395                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
 396                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
 397                                         push(@tag,$1);
 398                                         $tag{$1}=1;
 399                                 }
 400                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
 401                                 my $tag_i = $#tag;
 402                                 while($tag[$tag_i] ne "-") {
 403                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
 404                                                 $tag{$tag[$tag_i]}=2;
 405                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
 406                                         }
 407                                         $tag_i--;
 408                                 }
 409                         } elsif (/^\#\s*endif/) {
 410                                 my $tag_i = $#tag;
 411                                 while($tag[$tag_i] ne "-") {
 412                                         my $t=$tag[$tag_i];
 413                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
 414                                         if ($tag{$t}==2) {
 415                                                 $tag{$t}=-1;
 416                                         } else {
 417                                                 $tag{$t}=0;
 418                                         }
 419                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 420                                         pop(@tag);
 421                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
 422                                                 $t=$1;
 423                                         } else {
 424                                                 $t="";
 425                                         }
 426                                         if ($t ne ""
 427                                             && !grep(/^$t$/, @known_algorithms)) {
 428                                                 $unknown_algorithms{$t} = 1;
 429                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
 430                                         }
 431                                         $tag_i--;
 432                                 }
 433                                 pop(@tag);
 434                         } elsif (/^\#\s*else/) {
 435                                 my $tag_i = $#tag;
 436                                 while($tag[$tag_i] ne "-") {
 437                                         my $t=$tag[$tag_i];
 438                                         $tag{$t}= -$tag{$t};
 439                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
 440                                         $tag_i--;
 441                                 }
 442                         } elsif (/^\#\s*if\s+1/) {
 443                                 push(@tag,"-");
 444                                 # Dummy tag
 445                                 push(@tag,"TRUE");
 446                                 $tag{"TRUE"}=1;
 447                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
 448                         } elsif (/^\#\s*if\s+0/) {
 449                                 push(@tag,"-");
 450                                 # Dummy tag
 451                                 push(@tag,"TRUE");
 452                                 $tag{"TRUE"}=-1;
 453                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
 454                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
 455                                  && $symhacking) {
 456                                 my $s = $1;
 457                                 my $a = $2;
 458                                 my $a1 = join(",",
 459                                               grep(!/^$/,
 460                                                    map { $tag{$_} == 1 ?
 461                                                              $_ : "" }
 462                                                    @known_platforms));
 463                                 my $a2 = join(",",
 464                                               grep(!/^$/,
 465                                                    map { $tag{"OPENSSL_SYS_".$_} == 1 ?
 466                                                              $_ : "" }
 467                                                    @known_ossl_platforms));
 468                                 if ($a1 eq "") { $a1 = $a2; }
 469                                 elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
 470                                 $rename{$s} = $a.":".$a1;
 471                                 print STDERR "DEBUG: $file: defined $s = $a\n" if $debug;
 472                         }
 473                         if (/^\#/) {
 474                                 @current_platforms =
 475                                     grep(!/^$/,
 476                                          map { $tag{$_} == 1 ? $_ :
 477                                                    $tag{$_} == -1 ? "!".$_  : "" }
 478                                          @known_platforms);
 479                                 push @current_platforms
 480                                     , grep(!/^$/,
 481                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
 482                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
 483                                            @known_ossl_platforms);
 484                                 @current_algorithms =
 485                                     grep(!/^$/,
 486                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
 487                                          @known_algorithms);
 488                                 $def .=
 489                                     "#INFO:"
 490                                         .join(',',@current_platforms).":"
 491                                             .join(',',@current_algorithms).";";
 492                                 next;
 493                         }
 494                         if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 495                                 next;
 496                         } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 497                                 $def .= "int d2i_$3(void);";
 498                                 $def .= "int i2d_$3(void);";
 499                                 $def .= "OPENSSL_EXTERN int $2_it;";
 500                                 next;
 501                         } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 502                                 $def .= "int d2i_$3(void);";
 503                                 $def .= "int i2d_$3(void);";
 504                                 $def .= "int $3_free(void);";
 505                                 $def .= "int $3_new(void);";
 506                                 $def .= "OPENSSL_EXTERN int $2_it;";
 507                         } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
 508                                 /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
 509                                 $def .= "int d2i_$1(void);";
 510                                 $def .= "int i2d_$1(void);";
 511                                 $def .= "int $1_free(void);";
 512                                 $def .= "int $1_new(void);";
 513                                 $def .= "OPENSSL_EXTERN int $1_it;";
 514                                 next;
 515                         } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 516                                 $def .= "int d2i_$2(void);";
 517                                 $def .= "int i2d_$2(void);";
 518                                 $def .= "OPENSSL_EXTERN int $2_it;";
 519                                 next;
 520                         } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 521                                 $def .= "int d2i_$2(void);";
 522                                 $def .= "int i2d_$2(void);";
 523                                 $def .= "int $2_free(void);";
 524                                 $def .= "int $2_new(void);";
 525                                 $def .= "OPENSSL_EXTERN int $2_it;";
 526                                 next;
 527                         } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*,(\w*)\s*\)/) {
 528                                 $def .= "OPENSSL_EXTERN int $1_it;";
 529                                 next;
 530                         } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
 531                                 next;
 532                         } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
 533                                 next;
 534                         } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
 535                                  /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ) {
 536                                 # Things not in Win16
 537                                 $def .=
 538                                     "#INFO:"
 539                                         .join(',',"!WIN16",@current_platforms).":"
 540                                             .join(',',@current_algorithms).";";
 541                                 $def .= "int PEM_read_$1(void);";
 542                                 $def .= "int PEM_write_$1(void);";
 543                                 $def .=
 544                                     "#INFO:"
 545                                         .join(',',@current_platforms).":"
 546                                             .join(',',@current_algorithms).";";
 547                                 # Things that are everywhere
 548                                 $def .= "int PEM_read_bio_$1(void);";
 549                                 $def .= "int PEM_write_bio_$1(void);";
 550                         } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
 551                                      /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
 552                                 # Things not in Win16
 553                                 $def .=
 554                                     "#INFO:"
 555                                         .join(',',"!WIN16",@current_platforms).":"
 556                                             .join(',',@current_algorithms).";";
 557                                 $def .= "int PEM_write_$1(void);";
 558                                 $def .=
 559                                     "#INFO:"
 560                                         .join(',',@current_platforms).":"
 561                                             .join(',',@current_algorithms).";";
 562                                 # Things that are everywhere
 563                                 $def .= "int PEM_write_bio_$1(void);";
 564                         } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
 565                                      /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
 566                                 # Things not in Win16
 567                                 $def .=
 568                                     "#INFO:"
 569                                         .join(',',"!WIN16",@current_platforms).":"
 570                                             .join(',',@current_algorithms).";";
 571                                 $def .= "int PEM_read_$1(void);";
 572                                 $def .=
 573                                     "#INFO:"
 574                                         .join(',',@current_platforms).":"
 575                                             .join(',',@current_algorithms).";";
 576                                 # Things that are everywhere
 577                                 $def .= "int PEM_read_bio_$1(void);";
 578                         } elsif (
 579                                 ($tag{'TRUE'} != -1)
 580                                 && ($tag{'CONST_STRICT'} != 1)
 581                                  )
 582                                 {
 583                                         if (/\{|\/\*|\([^\)]*$/) {
 584                                                 $line = $_;
 585                                         } else {
 586                                                 $def .= $_;
 587                                         }
 588                                 }
 589                         }
 590                 close(IN);
 591
 592                 my $algs;
 593                 my $plays;
 594
 595                 foreach (split /;/, $def) {
 596                         my $s; my $k = "FUNCTION"; my $p; my $a;
 597                         s/^[\n\s]*//g;
 598                         s/[\n\s]*$//g;
 599                         next if(/\#undef/);
 600                         next if(/typedef\W/);
 601                         next if(/\#define/);
 602
 603                         if (/^\#INFO:([^:]*):(.*)$/) {
 604                                 $plats = $1;
 605                                 $algs = $2;
 606                                 next;
 607                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+)(\[[0-9]*\])*\s*$/) {
 608                                 $s = $1;
 609                                 $k = "VARIABLE";
 610                         } elsif (/\(\*(\w*)\([^\)]+/) {
 611                                 $s = $1;
 612                         } elsif (/\w+\W+(\w+)\W*\(\s*\)$/s) {
 613                                 # K&R C
 614                                 next;
 615                         } elsif (/\w+\W+\w+\W*\(.*\)$/s) {
 616                                 while (not /\(\)$/s) {
 617                                         s/[^\(\)]*\)$/\)/s;
 618                                         s/\([^\(\)]*\)\)$/\)/s;
 619                                 }
 620                                 s/\(void\)//;
 621                                 /(\w+)\W*\(\)/s;
 622                                 $s = $1;
 623                         } elsif (/\(/ and not (/=/)) {
 624                                 print STDERR "File $file: cannot parse: $_;\n";
 625                                 next;
 626                         } else {
 627                                 next;
 628                         }
 629
 630                         $syms{$s} = 1;
 631                         $kind{$s} = $k;
 632
 633                         $p = $plats;
 634                         $a = $algs;
 635                         $a .= ",BF" if($s =~ /EVP_bf/);
 636                         $a .= ",CAST" if($s =~ /EVP_cast/);
 637                         $a .= ",DES" if($s =~ /EVP_des/);
 638                         $a .= ",DSA" if($s =~ /EVP_dss/);
 639                         $a .= ",IDEA" if($s =~ /EVP_idea/);
 640                         $a .= ",MD2" if($s =~ /EVP_md2/);
 641                         $a .= ",MD4" if($s =~ /EVP_md4/);
 642                         $a .= ",MD5" if($s =~ /EVP_md5/);
 643                         $a .= ",RC2" if($s =~ /EVP_rc2/);
 644                         $a .= ",RC4" if($s =~ /EVP_rc4/);
 645                         $a .= ",RC5" if($s =~ /EVP_rc5/);
 646                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
 647                         $a .= ",SHA" if($s =~ /EVP_sha/);
 648                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
 649                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
 650                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
 651                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
 652
 653                         $platform{$s} .= ','.$p;
 654                         $algorithm{$s} .= ','.$a;
 655
 656                         if (defined($rename{$s})) {
 657                                 (my $r, my $p) = split(/:/,$rename{$s});
 658                                 my @ip = map { /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p;
 659                                 $syms{$r} = 1;
 660                                 $kind{$r} = $kind{$s}."(".$s.")";
 661                                 $algorithm{$r} = $algorithm{$s};
 662                                 $platform{$r} = $platform{$s}.",".$p;
 663                                 $platform{$s} .= ','.join(',', @ip).','.join(',', @ip);
 664                         }
 665                 }
 666         }
 667
 668         # Prune the returned symbols
 669
 670         delete $syms{"bn_dump1"};
 671         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
 672
 673         # Info we know about
 674
 675         push @ret, map { $_."\\".&info_string($_,"EXIST",
 676                                               $platform{$_},
 677                                               $kind{$_},
 678                                               $algorithm{$_}) } keys %syms;
 679
 680         if (keys %unknown_algorithms) {
 681                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
 682                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
 683         }
 684         return(@ret);
 685 }
 686
 687 sub info_string {
 688         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
 689
 690         my %a = defined($algorithms) ?
 691             map { $_ => 1 } split /,/, $algorithms : ();
 692         my $pl = defined($platforms) ? $platforms : "";
 693         my %p = map { $_ => 0 } split /,/, $pl;
 694         my $k = defined($kind) ? $kind : "FUNCTION";
 695         my $ret;
 696
 697         # We do this, because if there's code like the following, it really
 698         # means the function exists in all cases and should therefore be
 699         # everywhere.  By increasing and decreasing, we may attain 0:
 700         #
 701         # ifndef WIN16
 702         #    int foo();
 703         # else
 704         #    int _fat foo();
 705         # endif
 706         foreach $platform (split /,/, $pl) {
 707                 if ($platform =~ /^!(.*)$/) {
 708                         $p{$1}--;
 709                 } else {
 710                         $p{$platform}++;
 711                 }
 712         }
 713         foreach $platform (keys %p) {
 714                 if ($p{$platform} == 0) { delete $p{$platform}; }
 715         }
 716
 717         delete $p{""};
 718         delete $a{""};
 719
 720         $ret = $exist;
 721         $ret .= ":".join(',',map { $p{$_} < 0 ? "!".$_ : $_ } keys %p);
 722         $ret .= ":".$k;
 723         $ret .= ":".join(',',keys %a);
 724         return $ret;
 725 }
 726
 727 sub maybe_add_info {
 728         (my $name, *nums, my @symbols) = @_;
 729         my $sym;
 730         my $new_info = 0;
 731         my %syms=();
 732
 733         print STDERR "Updating $name info\n";
 734         foreach $sym (@symbols) {
 735                 (my $s, my $i) = split /\\/, $sym;
 736                 $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
 737                 if (defined($nums{$s})) {
 738                         (my $n, my $dummy) = split /\\/, $nums{$s};
 739                         if (!defined($dummy) || $i ne $dummy) {
 740                                 $nums{$s} = $n."\\".$i;
 741                                 $new_info++;
 742                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
 743                         }
 744                 }
 745                 $syms{sym} = 1;
 746         }
 747
 748         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
 749         foreach $sym (@s) {
 750                 (my $n, my $i) = split /\\/, $nums{$sym};
 751                 if (!defined($syms{sym})) {
 752                         $new_info++;
 753                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n if $debug";
 754                 }
 755         }
 756         if ($new_info) {
 757                 print STDERR "$new_info old symbols got an info update\n";
 758                 if (!$do_rewrite) {
 759                         print STDERR "You should do a rewrite to fix this.\n";
 760                 }
 761         } else {
 762                 print STDERR "No old symbols needed info update\n";
 763         }
 764 }
 765
 766 sub print_test_file
 767 {
 768         (*OUT,my $name,*nums,my @symbols)=@_;
 769         my $n = 1; my @e; my @r;
 770         my $sym; my $prev = ""; my $prefSSLeay;
 771
 772         (@e)=grep(/^SSLeay\\.*?:.*?:FUNCTION/,@symbols);
 773         (@r)=grep(/^\w+\\.*?:.*?:FUNCTION/ && !/^SSLeay\\.*?:.*?:FUNCTION/,@symbols);
 774         @symbols=((sort @e),(sort @r));
 775
 776         foreach $sym (@symbols) {
 777                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
 778                 if ($s ne $prev) {
 779                         if (!defined($nums{$s})) {
 780                                 print STDERR "Warning: $s does not have a number assigned\n"
 781                                                 if(!$do_update);
 782                         } else {
 783                                 $n=$nums{$s};
 784                                 print OUT "\t$s();\n";
 785                         }
 786                 }
 787                 $prev = $s;     # To avoid duplicates...
 788         }
 789 }
 790
 791 sub print_def_file
 792 {
 793         (*OUT,my $name,*nums,my @symbols)=@_;
 794         my $n = 1; my @e; my @r; my @v;
 795
 796         if ($W32)
 797                 { $name.="32"; }
 798         else
 799                 { $name.="16"; }
 800
 801         print OUT <<"EOF";
 802 ;
 803 ; Definition file for the DLL version of the $name library from OpenSSL
 804 ;
 805
 806 LIBRARY         $name
 807
 808 DESCRIPTION     'OpenSSL $name - http://www.openssl.org/'
 809
 810 EOF
 811
 812         if (!$W32) {
 813                 print <<"EOF";
 814 CODE            PRELOAD MOVEABLE
 815 DATA            PRELOAD MOVEABLE SINGLE
 816
 817 EXETYPE         WINDOWS
 818
 819 HEAPSIZE        4096
 820 STACKSIZE       8192
 821
 822 EOF
 823         }
 824
 825         print "EXPORTS\n";
 826
 827         (@e)=grep(/^SSLeay\\.*?:.*?:FUNCTION/,@symbols);
 828         (@r)=grep(/^\w+\\.*?:.*?:FUNCTION/ && !/^SSLeay\\.*?:.*?:FUNCTION/,@symbols);
 829         (@v)=grep(/^\w+\\.*?:.*?:VARIABLE/,@symbols);
 830         @symbols=((sort @e),(sort @r), (sort @v));
 831
 832
 833         foreach $sym (@symbols) {
 834                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
 835                 my $v = 0;
 836                 $v = 1 if $sym=~ /^\w+\\.*?:.*?:VARIABLE/;
 837                 if (!defined($nums{$s})) {
 838                         printf STDERR "Warning: $s does not have a number assigned\n"
 839                                         if(!$do_update);
 840                 } else {
 841                         (my $n, my $i) = split /\\/, $nums{$s};
 842                         my %pf = ();
 843                         my @p = split(/,/, ($i =~ /^[^:]*:([^:]*):/,$1));
 844                         my @a = split(/,/, ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1));
 845                         # @p_purged must contain hardware platforms only
 846                         my @p_purged = ();
 847                         foreach $ptmp (@p) {
 848                                 push @p_purged, $ptmp;
 849                         }
 850                         my $negatives = !!grep(/^!/,@p);
 851                         # It is very important to check NT before W32
 852                         if ((($NT && (!@p_purged
 853                                       || (!$negatives && grep(/^WINNT$/,@p))
 854                                       || ($negatives && !grep(/^!WINNT$/,@p))))
 855                              || ($W32 && (!@p_purged
 856                                           || (!$negatives && grep(/^WIN32$/,@p))
 857                                           || ($negatives && !grep(/^!WIN32$/,@p))))
 858                              || ($W16 && (!@p_purged
 859                                           || (!$negatives && grep(/^WIN16$/,@p))
 860                                           || ($negatives && !grep(/^!WIN16$/,@p)))))
 861                             && (!@a || (!$no_rc2 || !grep(/^RC2$/,@a)))
 862                             && (!@a || (!$no_rc4 || !grep(/^RC4$/,@a)))
 863                             && (!@a || (!$no_rc5 || !grep(/^RC5$/,@a)))
 864                             && (!@a || (!$no_idea || !grep(/^IDEA$/,@a)))
 865                             && (!@a || (!$no_des || !grep(/^DES$/,@a)))
 866                             && (!@a || (!$no_bf || !grep(/^BF$/,@a)))
 867                             && (!@a || (!$no_cast || !grep(/^CAST$/,@a)))
 868                             && (!@a || (!$no_md2 || !grep(/^MD2$/,@a)))
 869                             && (!@a || (!$no_md4 || !grep(/^MD4$/,@a)))
 870                             && (!@a || (!$no_md5 || !grep(/^MD5$/,@a)))
 871                             && (!@a || (!$no_sha || !grep(/^SHA$/,@a)))
 872                             && (!@a || (!$no_ripemd || !grep(/^RIPEMD$/,@a)))
 873                             && (!@a || (!$no_mdc2 || !grep(/^MDC2$/,@a)))
 874                             && (!@a || (!$no_rsa || !grep(/^RSA$/,@a)))
 875                             && (!@a || (!$no_dsa || !grep(/^DSA$/,@a)))
 876                             && (!@a || (!$no_dh || !grep(/^DH$/,@a)))
 877                             && (!@a || (!$no_hmac || !grep(/^HMAC$/,@a)))
 878                             && (!@a || (!$no_aes || !grep(/^AES$/,@a)))
 879                             && (!@a || (!$no_krb5 || !grep(/^KRB5$/,@a)))
 880                             && (!@a || (!$no_fp_api || !grep(/^FP_API$/,@a)))
 881                             ) {
 882                                 if($v) {
 883                                         printf OUT "    %s%-40s@%-8d DATA\n",($W32)?"":"_",$s,$n;
 884                                 } else {
 885                                         printf OUT "    %s%-40s@%d\n",($W32)?"":"_",$s,$n;
 886                                 }
 887 #                       } else {
 888 #                               print STDERR "DEBUG: \"$sym\" (@p):",
 889 #                               " rsaref:", !!(!@p
 890 #                                              || (!$negatives
 891 #                                                  && ($rsaref || !grep(/^RSAREF$/,@p)))
 892 #                                              || ($negatives
 893 #                                                  && (!$rsaref || !grep(/^!RSAREF$/,@p))))?1:0,
 894 #                               " 16:", !!($W16 && (!@p_purged
 895 #                                                   || (!$negatives && grep(/^WIN16$/,@p))
 896 #                                                   || ($negatives && !grep(/^!WIN16$/,@p)))),
 897 #                               " 32:", !!($W32 && (!@p_purged
 898 #                                                   || (!$negatives && grep(/^WIN32$/,@p))
 899 #                                                   || ($negatives && !grep(/^!WIN32$/,@p)))),
 900 #                               " NT:", !!($NT && (!@p_purged
 901 #                                                  || (!$negatives && grep(/^WINNT$/,@p))
 902 #                                                  || ($negatives && !grep(/^!WINNT$/,@p)))),
 903 #                               "\n";
 904                         }
 905                 }
 906         }
 907         printf OUT "\n";
 908 }
 909
 910 sub load_numbers
 911 {
 912         my($name)=@_;
 913         my(@a,%ret);
 914
 915         $max_num = 0;
 916         $num_noinfo = 0;
 917         $prev = "";
 918
 919         open(IN,"<$name") || die "unable to open $name:$!\n";
 920         while (<IN>) {
 921                 chop;
 922                 s/#.*$//;
 923                 next if /^\s*$/;
 924                 @a=split;
 925                 if (defined $ret{$a[0]}) {
 926                         print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
 927                 }
 928                 if ($max_num > $a[1]) {
 929                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
 930                 }
 931                 if ($max_num == $a[1]) {
 932                         # This is actually perfectly OK
 933                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
 934                 }
 935                 if ($#a < 2) {
 936                         # Existence will be proven later, in do_defs
 937                         $ret{$a[0]}=$a[1];
 938                         $num_noinfo++;
 939                 } else {
 940                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
 941                 }
 942                 $max_num = $a[1] if $a[1] > $max_num;
 943                 $prev=$a[0];
 944         }
 945         if ($num_noinfo) {
 946                 print STDERR "Warning: $num_noinfo symbols were without info.";
 947                 if ($do_rewrite) {
 948                         printf STDERR "  The rewrite will fix this.\n";
 949                 } else {
 950                         printf STDERR "  You should do a rewrite to fix this.\n";
 951                 }
 952         }
 953         close(IN);
 954         return(%ret);
 955 }
 956
 957 sub parse_number
 958 {
 959         (my $str, my $what) = @_;
 960         (my $n, my $i) = split(/\\/,$str);
 961         if ($what eq "n") {
 962                 return $n;
 963         } else {
 964                 return $i;
 965         }
 966 }
 967
 968 sub rewrite_numbers
 969 {
 970         (*OUT,$name,*nums,@symbols)=@_;
 971         my $thing;
 972
 973         print STDERR "Rewriting $name\n";
 974
 975         my @r = grep(/^\w+\\.*?:.*?:\w+\(\w+\)/,@symbols);
 976         my $r; my %r; my %rsyms;
 977         foreach $r (@r) {
 978                 (my $s, my $i) = split /\\/, $r;
 979                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
 980                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
 981                 $r{$a} = $s."\\".$i;
 982                 $rsyms{$s} = 1;
 983         }
 984
 985         my %syms = ();
 986         foreach $_ (@symbols) {
 987                 (my $n, my $i) = split /\\/;
 988                 $syms{$n} = 1;
 989         }
 990
 991         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
 992         foreach $sym (@s) {
 993                 (my $n, my $i) = split /\\/, $nums{$sym};
 994                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
 995                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
 996                 next if defined($rsyms{$sym});
 997                 $i="NOEXIST::FUNCTION:"
 998                         if !defined($i) || $i eq "" || !defined($syms{$sym});
 999                 printf OUT "%s%-40s%d\t%s\n","",$sym,$n,$i;
1000                 if (exists $r{$sym}) {
1001                         (my $s, $i) = split /\\/,$r{$sym};
1002                         printf OUT "%s%-40s%d\t%s\n","",$s,$n,$i;
1003                 }
1004         }
1005 }
1006
1007 sub update_numbers
1008 {
1009         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1010         my $new_syms = 0;
1011
1012         print STDERR "Updating $name numbers\n";
1013
1014         my @r = grep(/^\w+\\.*?:.*?:\w+\(\w+\)/,@symbols);
1015         my $r; my %r; my %rsyms;
1016         foreach $r (@r) {
1017                 (my $s, my $i) = split /\\/, $r;
1018                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1019                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1020                 $r{$a} = $s."\\".$i;
1021                 $rsyms{$s} = 1;
1022         }
1023
1024         foreach $sym (@symbols) {
1025                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1026                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1027                 next if defined($rsyms{$sym});
1028                 die "ERROR: Symbol $sym had no info attached to it."
1029                     if $i eq "";
1030                 if (!exists $nums{$s}) {
1031                         $new_syms++;
1032                         printf OUT "%s%-40s%d\t%s\n","",$s, ++$start_num,$i;
1033                         if (exists $r{$s}) {
1034                                 ($s, $i) = split /\\/,$r{$s};
1035                                 printf OUT "%s%-40s%d\t%s\n","",$s, $start_num,$i;
1036                         }
1037                 }
1038         }
1039         if($new_syms) {
1040                 print STDERR "$new_syms New symbols added\n";
1041         } else {
1042                 print STDERR "No New symbols Added\n";
1043         }
1044 }
1045
1046 sub check_existing
1047 {
1048         (*nums, my @symbols)=@_;
1049         my %existing; my @remaining;
1050         @remaining=();
1051         foreach $sym (@symbols) {
1052                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1053                 $existing{$s}=1;
1054         }
1055         foreach $sym (keys %nums) {
1056                 if (!exists $existing{$sym}) {
1057                         push @remaining, $sym;
1058                 }
1059         }
1060         if(@remaining) {
1061                 print STDERR "The following symbols do not seem to exist:\n";
1062                 foreach $sym (@remaining) {
1063                         print STDERR "\t",$sym,"\n";
1064                 }
1065         }
1066 }
1067