util/mkerr.pl

   1 #!/usr/local/bin/perl -w
   2
   3 my $config = "crypto/err/openssl.ec";
   4 my $debug = 0;
   5 my $rebuild = 0;
   6 my $static = 1;
   7 my $recurse = 0;
   8 my $reindex = 0;
   9 my $dowrite = 0;
  10
  11
  12 while (@ARGV) {
  13         my $arg = $ARGV[0];
  14         if($arg eq "-conf") {
  15                 shift @ARGV;
  16                 $config = shift @ARGV;
  17         } elsif($arg eq "-debug") {
  18                 $debug = 1;
  19                 shift @ARGV;
  20         } elsif($arg eq "-rebuild") {
  21                 $rebuild = 1;
  22                 shift @ARGV;
  23         } elsif($arg eq "-recurse") {
  24                 $recurse = 1;
  25                 shift @ARGV;
  26         } elsif($arg eq "-reindex") {
  27                 $reindex = 1;
  28                 shift @ARGV;
  29         } elsif($arg eq "-nostatic") {
  30                 $static = 0;
  31                 shift @ARGV;
  32         } elsif($arg eq "-write") {
  33                 $dowrite = 1;
  34                 shift @ARGV;
  35         } else {
  36                 last;
  37         }
  38 }
  39
  40 if($recurse) {
  41         @source = (<crypto/*.c>, <crypto/*/*.c>, ,<rsaref/*.c>, <ssl/*.c>);
  42 } else {
  43         @source = @ARGV;
  44 }
  45
  46 # Read in the config file
  47
  48 open(IN, "<$config") || die "Can't open config file $config";
  49
  50 # Parse config file
  51
  52 while(<IN>)
  53 {
  54         if(/^L\s+(\S+)\s+(\S+)\s+(\S+)/) {
  55                 $hinc{$1} = $2;
  56                 $cskip{$3} = $1;
  57                 if($3 ne "NONE") {
  58                         $csrc{$1} = $3;
  59                         $fmax{$1} = 99;
  60                         $rmax{$1} = 99;
  61                         $fnew{$1} = 0;
  62                         $rnew{$1} = 0;
  63                 }
  64         } elsif (/^F\s+(\S+)/) {
  65         # Add extra function with $1
  66         } elsif (/^R\s+(\S+)\s+(\S+)/) {
  67                 $rextra{$1} = $2;
  68                 $rcodes{$1} = $2;
  69         }
  70 }
  71
  72 close IN;
  73
  74 # Scan each header file in turn and make a list of error codes
  75 # and function names
  76
  77 while (($lib, $hdr) = each %hinc)
  78 {
  79         next if($hdr eq "NONE");
  80         print STDERR "Scanning header file $hdr\n" if $debug;
  81         open(IN, "<$hdr") || die "Can't open Header file $hdr\n";
  82         my $line = "", $def= "";
  83         while(<IN>) {
  84             last if(/BEGIN\s+ERROR\s+CODES/);
  85             if ($line ne '') {
  86                 $_ = $line . $_;
  87                 $line = '';
  88             }
  89
  90             if (/\\$/) {
  91                 $line = $_;
  92                 next;
  93             }
  94
  95             $cpp = 1 if /^#.*ifdef.*cplusplus/;  # skip "C" declaration
  96             if ($cpp) {
  97                 $cpp = 0 if /^#.*endif/;
  98                 next;
  99             }
 100
 101             next if (/^#/);                      # skip preprocessor directives
 102
 103             s/\/\*.*?\*\///gs;                   # ignore comments
 104             s/{[^{}]*}//gs;                      # ignore {} blocks
 105
 106             if (/{|\/\*/) { # Add a } so editor works...
 107                 $line = $_;
 108             } else {
 109                 $def .= $_;
 110             }
 111         }
 112
 113         foreach (split /;/, $def) {
 114             s/^[\n\s]*//g;
 115             s/[\n\s]*$//g;
 116             next if(/typedef\W/);
 117             if (/\(\*(\w*)\([^\)]+/) {
 118                 my $name = $1;
 119                 $name =~ tr/[a-z]/[A-Z]/;
 120                 $ftrans{$name} = $1;
 121             } elsif (/\w+\W+(\w+)\W*\(\s*\)$/s){
 122                 # K&R C
 123                 next ;
 124             } elsif (/\w+\W+\w+\W*\(.*\)$/s) {
 125                 while (not /\(\)$/s) {
 126                     s/[^\(\)]*\)$/\)/s;
 127                     s/\([^\(\)]*\)\)$/\)/s;
 128                 }
 129                 s/\(void\)//;
 130                 /(\w+)\W*\(\)/s;
 131                 my $name = $1;
 132                 $name =~ tr/[a-z]/[A-Z]/;
 133                 $ftrans{$name} = $1;
 134             } elsif (/\(/ and not (/=/ or /DECLARE_STACK/)) {
 135                 print STDERR "Header $hdr: cannot parse: $_;\n";
 136             }
 137         }
 138
 139         next if $reindex;
 140
 141         # Scan function and reason codes and store them: keep a note of the
 142         # maximum code used.
 143
 144         while(<IN>) {
 145                 if(/^#define\s+(\S+)\s+(\S+)/) {
 146                         $name = $1;
 147                         $code = $2;
 148                         unless($name =~ /^${lib}_([RF])_(\w+)$/) {
 149                                 print STDERR "Invalid error code $name\n";
 150                                 next;
 151                         }
 152                         if($1 eq "R") {
 153                                 $rcodes{$name} = $code;
 154                                 if(!(exists $rextra{$name}) &&
 155                                          ($code > $rmax{$lib}) ) {
 156                                         $rmax{$lib} = $code;
 157                                 }
 158                         } else {
 159                                 if($code > $fmax{$lib}) {
 160                                         $fmax{$lib} = $code;
 161                                 }
 162                                 $fcodes{$name} = $code;
 163                         }
 164                 }
 165         }
 166         close IN;
 167 }
 168
 169 # Scan each C source file and look for function and reason codes
 170 # This is done by looking for strings that "look like" function or
 171 # reason codes: basically anything consisting of all upper case and
 172 # numerics which has _F_ or _R_ in it and which has the name of an
 173 # error library at the start. This seems to work fine except for the
 174 # oddly named structure BIO_F_CTX which needs to be ignored.
 175 # If a code doesn't exist in list compiled from headers then mark it
 176 # with the value "X" as a place holder to give it a value later.
 177 # Store all function and reason codes found in %ufcodes and %urcodes
 178 # so all those unreferenced can be printed out.
 179
 180
 181 foreach $file (@source) {
 182         # Don't parse the error source file.
 183         next if exists $cskip{$file};
 184         open(IN, "<$file") || die "Can't open source file $file\n";
 185         while(<IN>) {
 186                 if(/(([A-Z0-9]+)_F_([A-Z0-9_]+))/) {
 187                         next unless exists $csrc{$2};
 188                         next if($1 eq "BIO_F_BUFFER_CTX");
 189                         $ufcodes{$1} = 1;
 190                         if(!exists $fcodes{$1}) {
 191                                 $fcodes{$1} = "X";
 192                                 $fnew{$2}++;
 193                         }
 194                         $notrans{$1} = 1 unless exists $ftrans{$3};
 195                 }
 196                 if(/(([A-Z0-9]+)_R_[A-Z0-9_]+)/) {
 197                         next unless exists $csrc{$2};
 198                         $urcodes{$1} = 1;
 199                         if(!exists $rcodes{$1}) {
 200                                 $rcodes{$1} = "X";
 201                                 $rnew{$2}++;
 202                         }
 203                 }
 204         }
 205         close IN;
 206 }
 207
 208 # Now process each library in turn.
 209
 210 foreach $lib (keys %csrc)
 211 {
 212         my $hfile = $hinc{$lib};
 213         my $cfile = $csrc{$lib};
 214         if(!$fnew{$lib} && !$rnew{$lib}) {
 215                 print STDERR "$lib:\t\tNo new error codes\n";
 216                 next unless $rebuild;
 217         } else {
 218                 print STDERR "$lib:\t\t$fnew{$lib} New Functions,";
 219                 print STDERR " $rnew{$lib} New Reasons.\n";
 220                 next unless $dowrite;
 221         }
 222
 223         # If we get here then we have some new error codes so we
 224         # need to rebuild the header file and C file.
 225
 226         # Make a sorted list of error and reason codes for later use.
 227
 228         my @function = sort grep(/^${lib}_/,keys %fcodes);
 229         my @reasons = sort grep(/^${lib}_/,keys %rcodes);
 230
 231         # Rewrite the header file
 232
 233         open(IN, "<$hfile") || die "Can't Open Header File $hfile\n";
 234
 235         # Copy across the old file
 236         while(<IN>) {
 237                 push @out, $_;
 238                 last if (/BEGIN ERROR CODES/);
 239         }
 240         close IN;
 241
 242         open (OUT, ">$hfile") || die "Can't Open File $hfile for writing\n";
 243
 244         print OUT @out;
 245         undef @out;
 246         print OUT <<"EOF";
 247 /* The following lines are auto generated by the script mkerr.pl. Any changes
 248  * made after this point may be overwritten when the script is next run.
 249  */
 250
 251 /* Error codes for the $lib functions. */
 252
 253 /* Function codes. */
 254 EOF
 255
 256         foreach $i (@function) {
 257                 $z=6-int(length($i)/8);
 258                 if($fcodes{$i} eq "X") {
 259                         $fcodes{$i} = ++$fmax{$lib};
 260                         print STDERR "New Function code $i\n" if $debug;
 261                 }
 262                 printf OUT "#define $i%s $fcodes{$i}\n","\t" x $z;
 263         }
 264
 265         print OUT "\n/* Reason codes. */\n";
 266
 267         foreach $i (@reasons) {
 268                 $z=6-int(length($i)/8);
 269                 if($rcodes{$i} eq "X") {
 270                         $rcodes{$i} = ++$rmax{$lib};
 271                         print STDERR "New Reason code   $i\n" if $debug;
 272                 }
 273                 printf OUT "#define $i%s $rcodes{$i}\n","\t" x $z;
 274         }
 275         print OUT <<"EOF";
 276
 277 #ifdef  __cplusplus
 278 }
 279 #endif
 280 #endif
 281
 282 EOF
 283         close OUT;
 284
 285         # Rewrite the C source file containing the error details.
 286
 287         # First, read any existing reason string definitions:
 288         my %err_reason_strings;
 289         if (open(IN,"<$cfile")) {
 290                 while (<IN>) {
 291                         if (/\b(${lib}_R_\w*)\b.*\"(.*)\"/) {
 292                                 $err_reason_strings{$1} = $2;
 293                         }
 294                 }
 295                 close(IN);
 296         }
 297
 298         my $hincf;
 299         if($static) {
 300                 $hfile =~ /([^\/]+)$/;
 301                 $hincf = "<openssl/$1>";
 302         } else {
 303                 $hincf = "\"$hfile\"";
 304         }
 305
 306
 307         open (OUT,">$cfile") || die "Can't open $cfile for writing";
 308
 309         print OUT <<"EOF";
 310 /* $cfile */
 311 /* ====================================================================
 312  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
 313  *
 314  * Redistribution and use in source and binary forms, with or without
 315  * modification, are permitted provided that the following conditions
 316  * are met:
 317  *
 318  * 1. Redistributions of source code must retain the above copyright
 319  *    notice, this list of conditions and the following disclaimer.
 320  *
 321  * 2. Redistributions in binary form must reproduce the above copyright
 322  *    notice, this list of conditions and the following disclaimer in
 323  *    the documentation and/or other materials provided with the
 324  *    distribution.
 325  *
 326  * 3. All advertising materials mentioning features or use of this
 327  *    software must display the following acknowledgment:
 328  *    "This product includes software developed by the OpenSSL Project
 329  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 330  *
 331  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 332  *    endorse or promote products derived from this software without
 333  *    prior written permission. For written permission, please contact
 334  *    openssl-core\@OpenSSL.org.
 335  *
 336  * 5. Products derived from this software may not be called "OpenSSL"
 337  *    nor may "OpenSSL" appear in their names without prior written
 338  *    permission of the OpenSSL Project.
 339  *
 340  * 6. Redistributions of any form whatsoever must retain the following
 341  *    acknowledgment:
 342  *    "This product includes software developed by the OpenSSL Project
 343  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 344  *
 345  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 346  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 347  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 348  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 349  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 350  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 351  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 352  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 353  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 354  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 355  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 356  * OF THE POSSIBILITY OF SUCH DAMAGE.
 357  * ====================================================================
 358  *
 359  * This product includes cryptographic software written by Eric Young
 360  * (eay\@cryptsoft.com).  This product includes software written by Tim
 361  * Hudson (tjh\@cryptsoft.com).
 362  *
 363  */
 364
 365 /* NOTE: this file was auto generated by the mkerr.pl script: any changes
 366  * made to it will be overwritten when the script next updates this file,
 367  * only reason strings will be preserved.
 368  */
 369
 370 #include <stdio.h>
 371 #include <openssl/err.h>
 372 #include $hincf
 373
 374 /* BEGIN ERROR CODES */
 375 #ifndef NO_ERR
 376 static ERR_STRING_DATA ${lib}_str_functs[]=
 377         {
 378 EOF
 379         # Add each function code: if a function name is found then use it.
 380         foreach $i (@function) {
 381                 my $fn;
 382                 $i =~ /^${lib}_F_(\S+)$/;
 383                 $fn = $1;
 384                 if(exists $ftrans{$fn}) {
 385                         $fn = $ftrans{$fn};
 386                 }
 387                 print OUT "{ERR_PACK(0,$i,0),\t\"$fn\"},\n";
 388         }
 389         print OUT <<"EOF";
 390 {0,NULL}
 391         };
 392
 393 static ERR_STRING_DATA ${lib}_str_reasons[]=
 394         {
 395 EOF
 396         # Add each reason code.
 397         foreach $i (@reasons) {
 398                 my $rn;
 399                 my $nspc = 0;
 400                 if (exists $err_reason_strings{$i}) {
 401                         $rn = $err_reason_strings{$i};
 402                 } else {
 403                         $i =~ /^${lib}_R_(\S+)$/;
 404                         $rn = $1;
 405                         $rn =~ tr/_[A-Z]/ [a-z]/;
 406                 }
 407                 $nspc = 40 - length($i) unless length($i) > 40;
 408                 $nspc = " " x $nspc;
 409                 print OUT "{${i}${nspc},\"$rn\"},\n";
 410         }
 411 if($static) {
 412         print OUT <<"EOF";
 413 {0,NULL}
 414         };
 415
 416 #endif
 417
 418 void ERR_load_${lib}_strings(void)
 419         {
 420         static int init=1;
 421
 422         if (init)
 423                 {
 424                 init=0;
 425 #ifndef NO_ERR
 426                 ERR_load_strings(ERR_LIB_${lib},${lib}_str_functs);
 427                 ERR_load_strings(ERR_LIB_${lib},${lib}_str_reasons);
 428 #endif
 429
 430                 }
 431         }
 432 EOF
 433 } else {
 434         print OUT <<"EOF";
 435 {0,NULL}
 436         };
 437
 438 #endif
 439
 440 #ifdef ${lib}_LIB_NAME
 441 static ERR_STRING_DATA ${lib}_lib_name[]=
 442         {
 443 {0      ,${lib}_LIB_NAME},
 444 {0,NULL}
 445         };
 446 #endif
 447
 448
 449 int ${lib}_lib_error_code=0;
 450
 451 void ERR_load_${lib}_strings(void)
 452         {
 453         static int init=1;
 454
 455         if (${lib}_lib_error_code == 0)
 456                 ${lib}_lib_error_code=ERR_get_next_error_library();
 457
 458         if (init)
 459                 {
 460                 init=0;
 461 #ifndef NO_ERR
 462                 ERR_load_strings(${lib}_lib_error_code,${lib}_str_functs);
 463                 ERR_load_strings(${lib}_lib_error_code,${lib}_str_reasons);
 464 #endif
 465
 466 #ifdef ${lib}_LIB_NAME
 467                 ${lib}_lib_name->error = ERR_PACK(${lib}_lib_error_code,0,0);
 468                 ERR_load_strings(0,${lib}_lib_name);
 469 #endif
 470                 }
 471         }
 472
 473 void ERR_${lib}_error(int function, int reason, char *file, int line)
 474         {
 475         if (${lib}_lib_error_code == 0)
 476                 ${lib}_lib_error_code=ERR_get_next_error_library();
 477         ERR_PUT_error(${lib}_lib_error_code,function,reason,file,line);
 478         }
 479 EOF
 480
 481 }
 482
 483         close OUT;
 484         undef %err_reason_strings;
 485 }
 486
 487 if($debug && defined(%notrans)) {
 488         print STDERR "The following function codes were not translated:\n";
 489         foreach(sort keys %notrans)
 490         {
 491                 print STDERR "$_\n";
 492         }
 493 }
 494
 495 # Make a list of unreferenced function and reason codes
 496
 497 foreach (keys %fcodes) {
 498         push (@funref, $_) unless exists $ufcodes{$_};
 499 }
 500
 501 foreach (keys %rcodes) {
 502         push (@runref, $_) unless exists $urcodes{$_};
 503 }
 504
 505 if($debug && defined(@funref) ) {
 506         print STDERR "The following function codes were not referenced:\n";
 507         foreach(sort @funref)
 508         {
 509                 print STDERR "$_\n";
 510         }
 511 }
 512
 513 if($debug && defined(@runref) ) {
 514         print STDERR "The following reason codes were not referenced:\n";
 515         foreach(sort @runref)
 516         {
 517                 print STDERR "$_\n";
 518         }
 519 }