util/mkerr.pl

   1 #! /usr/bin/env perl
   2 # Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the Apache License 2.0 (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9 use strict;
  10 use warnings;
  11
  12 use lib ".";
  13 use configdata;
  14
  15 my $config       = "crypto/err/openssl.ec";
  16 my $debug        = 0;
  17 my $internal     = 0;
  18 my $nowrite      = 0;
  19 my $rebuild      = 0;
  20 my $reindex      = 0;
  21 my $static       = 0;
  22 my $unref        = 0;
  23 my %modules         = ();
  24
  25 my $errors       = 0;
  26 my @t            = localtime();
  27 my $YEAR         = $t[5] + 1900;
  28
  29 sub phase
  30 {
  31     my $text = uc(shift);
  32     print STDERR "\n---\n$text\n" if $debug;
  33 }
  34
  35 sub help
  36 {
  37     print STDERR <<"EOF";
  38 mkerr.pl [options] [files...]
  39
  40 Options:
  41
  42     -conf FILE  Use the named config file FILE instead of the default.
  43
  44     -debug      Verbose output debugging on stderr.
  45
  46     -internal   Generate code that is to be built as part of OpenSSL itself.
  47                 Also scans internal list of files.
  48
  49     -module M   Only useful with -internal!
  50                 Only write files for library module M.  Whether files are
  51                 actually written or not depends on other options, such as
  52                 -rebuild.
  53                 Note: this option is cumulative.  If not given at all, all
  54                 internal modules will be considered.
  55
  56     -nowrite    Do not write the header/source files, even if changed.
  57
  58     -rebuild    Rebuild all header and C source files, even if there
  59                 were no changes.
  60
  61     -reindex    Ignore previously assigned values (except for R records in
  62                 the config file) and renumber everything starting at 100.
  63
  64     -static     Make the load/unload functions static.
  65
  66     -unref      List all unreferenced function and reason codes on stderr;
  67                 implies -nowrite.
  68
  69     -help       Show this help text.
  70
  71     ...         Additional arguments are added to the file list to scan,
  72                 if '-internal' was NOT specified on the command line.
  73
  74 EOF
  75 }
  76
  77 while ( @ARGV ) {
  78     my $arg = $ARGV[0];
  79     last unless $arg =~ /-.*/;
  80     $arg = $1 if $arg =~ /-(-.*)/;
  81     if ( $arg eq "-conf" ) {
  82         $config = $ARGV[1];
  83         shift @ARGV;
  84     } elsif ( $arg eq "-debug" ) {
  85         $debug = 1;
  86         $unref = 1;
  87     } elsif ( $arg eq "-internal" ) {
  88         $internal = 1;
  89     } elsif ( $arg eq "-nowrite" ) {
  90         $nowrite = 1;
  91     } elsif ( $arg eq "-rebuild" ) {
  92         $rebuild = 1;
  93     } elsif ( $arg eq "-reindex" ) {
  94         $reindex = 1;
  95     } elsif ( $arg eq "-static" ) {
  96         $static = 1;
  97     } elsif ( $arg eq "-unref" ) {
  98         $unref = 1;
  99         $nowrite = 1;
 100     } elsif ( $arg eq "-module" ) {
 101         shift @ARGV;
 102         $modules{uc $ARGV[0]} = 1;
 103     } elsif ( $arg =~ /-*h(elp)?/ ) {
 104         &help();
 105         exit;
 106     } elsif ( $arg =~ /-.*/ ) {
 107         die "Unknown option $arg; use -h for help.\n";
 108     }
 109     shift @ARGV;
 110 }
 111
 112 my @source;
 113 if ( $internal ) {
 114     die "Cannot mix -internal and -static\n" if $static;
 115     die "Extra parameters given.\n" if @ARGV;
 116     @source = ( glob('crypto/*.c'), glob('crypto/*/*.c'),
 117                 glob('ssl/*.c'), glob('ssl/*/*.c'), glob('providers/*.c'),
 118                 glob('providers/*/*.c'), glob('providers/*/*/*.c') );
 119 } else {
 120     die "-module isn't useful without -internal\n" if scalar keys %modules > 0;
 121     @source = @ARGV;
 122 }
 123
 124 # Data parsed out of the config and state files.
 125 # We always map function-code values to zero, so items marked below with
 126 # an asterisk could eventually be removed.  TODO(4.0)
 127 my %hinc;       # lib -> header
 128 my %libinc;     # header -> lib
 129 my %cskip;      # error_file -> lib
 130 my %errorfile;  # lib -> error file name
 131 my %fmax;       # lib -> max assigned function code*
 132 my %rmax;       # lib -> max assigned reason code
 133 my %fassigned;  # lib -> colon-separated list of assigned function codes*
 134 my %rassigned;  # lib -> colon-separated list of assigned reason codes
 135 my %fnew;       # lib -> count of new function codes*
 136 my %rnew;       # lib -> count of new reason codes
 137 my %rextra;     # "extra" reason code -> lib
 138 my %rcodes;     # reason-name -> value
 139 my %ftrans;     # old name -> #define-friendly name (all caps)*
 140 my %fcodes;     # function-name -> value*
 141 my $statefile;  # state file with assigned reason and function codes
 142 my %strings;    # define -> text
 143
 144 # Read and parse the config file
 145 open(IN, "$config") || die "Can't open config file $config, $!,";
 146 while ( <IN> ) {
 147     next if /^#/ || /^$/;
 148     if ( /^L\s+(\S+)\s+(\S+)\s+(\S+)/ ) {
 149         my $lib = $1;
 150         my $hdr = $2;
 151         my $err = $3;
 152         $hinc{$lib}   = $hdr;
 153         $libinc{$hdr} = $lib;
 154         $cskip{$err}  = $lib;
 155         next if $err eq 'NONE';
 156         $errorfile{$lib} = $err;
 157         $fmax{$lib}      = 100;
 158         $rmax{$lib}      = 100;
 159         $fassigned{$lib} = ":";
 160         $rassigned{$lib} = ":";
 161         $fnew{$lib}      = 0;
 162         $rnew{$lib}      = 0;
 163     } elsif ( /^R\s+(\S+)\s+(\S+)/ ) {
 164         $rextra{$1} = $2;
 165         $rcodes{$1} = $2;
 166     } elsif ( /^S\s+(\S+)/ ) {
 167         $statefile = $1;
 168     } else {
 169         die "Illegal config line $_\n";
 170     }
 171 }
 172 close IN;
 173
 174 if ( ! $statefile ) {
 175     $statefile = $config;
 176     $statefile =~ s/.ec/.txt/;
 177 }
 178
 179 # The statefile has all the previous assignments.
 180 &phase("Reading state");
 181 my $skippedstate = 0;
 182 if ( ! $reindex && $statefile ) {
 183     open(STATE, "<$statefile") || die "Can't open $statefile, $!";
 184
 185     # Scan function and reason codes and store them: keep a note of the
 186     # maximum code used.
 187     while ( <STATE> ) {
 188         next if /^#/ || /^$/;
 189         my $name;
 190         my $code;
 191         if ( /^(.+):(\d+):\\$/ ) {
 192             $name = $1;
 193             $code = $2;
 194             my $next = <STATE>;
 195             $next =~ s/^\s*(.*)\s*$/$1/;
 196             die "Duplicate define $name" if exists $strings{$name};
 197             $strings{$name} = $next;
 198         } elsif ( /^(\S+):(\d+):(.*)$/ ) {
 199             $name = $1;
 200             $code = $2;
 201             die "Duplicate define $name" if exists $strings{$name};
 202             $strings{$name} = $3;
 203         } else {
 204             die "Bad line in $statefile:\n$_\n";
 205         }
 206         my $lib = $name;
 207         $lib =~ s/^((?:OSSL_|OPENSSL_)?[^_]{2,}).*$/$1/;
 208         $lib = "SSL" if $lib =~ /TLS/;
 209         if ( !defined $errorfile{$lib} ) {
 210             print "Skipping $_";
 211             $skippedstate++;
 212             next;
 213         }
 214         if ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_R_/ ) {
 215             die "$lib reason code $code collision at $name\n"
 216                 if $rassigned{$lib} =~ /:$code:/;
 217             $rassigned{$lib} .= "$code:";
 218             if ( !exists $rextra{$name} ) {
 219                 $rmax{$lib} = $code if $code > $rmax{$lib};
 220             }
 221             $rcodes{$name} = $code;
 222         } elsif ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_F_/ ) {
 223             $fassigned{$lib} .= "$code:";
 224             $fmax{$lib} = $code if $code > $fmax{$lib};
 225             $fcodes{$name} = $code;
 226         } else {
 227             die "Bad line in $statefile:\n$_\n";
 228         }
 229     }
 230     close(STATE);
 231
 232     if ( $debug ) {
 233         foreach my $lib ( sort keys %rmax ) {
 234             print STDERR "Reason codes for ${lib}:\n";
 235             if ( $rassigned{$lib} =~ m/^:(.*):$/ ) {
 236                 my @rassigned = sort { $a <=> $b } split( ":", $1 );
 237                 print STDERR "  ", join(' ', @rassigned), "\n";
 238             } else {
 239                 print STDERR "  --none--\n";
 240             }
 241         }
 242         print STDERR "\n";
 243         foreach my $lib ( sort keys %fmax ) {
 244             print STDERR "Function codes for ${lib}:\n";
 245             if ( $fassigned{$lib} =~ m/^:(.*):$/ ) {
 246                 my @fassigned = sort { $a <=> $b } split( ":", $1 );
 247                 print STDERR "  ", join(' ', @fassigned), "\n";
 248             } else {
 249                 print STDERR "  --none--\n";
 250             }
 251         }
 252     }
 253 }
 254
 255 # Scan each header file and make a list of error codes
 256 # and function names
 257 &phase("Scanning headers");
 258 while ( ( my $hdr, my $lib ) = each %libinc ) {
 259     next if $hdr eq "NONE";
 260     print STDERR " ." if $debug;
 261     my $line = "";
 262     my $def = "";
 263     my $linenr = 0;
 264     my $cpp = 0;
 265
 266     open(IN, "<$hdr") || die "Can't open $hdr, $!,";
 267     while ( <IN> ) {
 268         $linenr++;
 269
 270         if ( $line ne '' ) {
 271             $_    = $line . $_;
 272             $line = '';
 273         }
 274
 275         if ( /\\$/ ) {
 276             $line = $_;
 277             next;
 278         }
 279
 280         if ( /\/\*/ ) {
 281             if ( not /\*\// ) {    # multiline comment...
 282                 $line = $_;        # ... just accumulate
 283                 next;
 284             } else {
 285                 s/\/\*.*?\*\///gs;    # wipe it
 286             }
 287         }
 288
 289         if ( $cpp ) {
 290             $cpp++ if /^#\s*if/;
 291             $cpp-- if /^#\s*endif/;
 292             next;
 293         }
 294         $cpp = 1 if /^#.*ifdef.*cplusplus/;    # skip "C" declaration
 295
 296         next if /^\#/;    # skip preprocessor directives
 297
 298         s/{[^{}]*}//gs;     # ignore {} blocks
 299
 300         if ( /\{|\/\*/ ) {    # Add a so editor works...
 301             $line = $_;
 302         } else {
 303             $def .= $_;
 304         }
 305     }
 306
 307     # Delete any DECLARE_ macros
 308     my $defnr = 0;
 309     $def =~ s/DECLARE_\w+\([\w,\s]+\)//gs;
 310     foreach ( split /;/, $def ) {
 311         $defnr++;
 312         # The goal is to collect function names from function declarations.
 313
 314         s/^[\n\s]*//g;
 315         s/[\n\s]*$//g;
 316
 317         # Skip over recognized non-function declarations
 318         next if /typedef\W/;
 319
 320         # Remove STACK_OF(foo)
 321         s/STACK_OF\(\w+\)/void/;
 322
 323         # Reduce argument lists to empty ()
 324         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
 325         while ( /\(.*\)/s ) {
 326             s/\([^\(\)]+\)/\{\}/gs;
 327             s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
 328         }
 329
 330         # pretend as we didn't use curly braces: {} -> ()
 331         s/\{\}/\(\)/gs;
 332
 333         # Last token just before the first () is a function name.
 334         if ( /(\w+)\s*\(\).*/s ) {
 335             my $name = $1;
 336             $name =~ tr/[a-z]/[A-Z]/;
 337             $ftrans{$name} = $1;
 338         } elsif ( /[\(\)]/ and not(/=/) ) {
 339             print STDERR "Header $hdr: cannot parse: $_;\n";
 340         }
 341     }
 342
 343     next if $reindex;
 344
 345     if ( $lib eq "SSL" && $rmax{$lib} >= 1000 ) {
 346         print STDERR "SSL error codes 1000+ are reserved for alerts.\n";
 347         print STDERR "Any new alerts must be added to $config.\n";
 348         $errors++;
 349     }
 350     close IN;
 351 }
 352 print STDERR "\n" if $debug;
 353
 354 # Scan each C source file and look for function and reason codes
 355 # This is done by looking for strings that "look like" function or
 356 # reason codes: basically anything consisting of all upper case and
 357 # numerics which has _F_ or _R_ in it and which has the name of an
 358 # error library at the start.  This seems to work fine except for the
 359 # oddly named structure BIO_F_CTX which needs to be ignored.
 360 # If a code doesn't exist in list compiled from headers then mark it
 361 # with the value "X" as a place holder to give it a value later.
 362 # Store all function and reason codes found in %usedfuncs and %usedreasons
 363 # so all those unreferenced can be printed out.
 364 &phase("Scanning source");
 365 my %usedfuncs;
 366 my %usedreasons;
 367 foreach my $file ( @source ) {
 368     # Don't parse the error source file.
 369     next if exists $cskip{$file};
 370     open( IN, "<$file" ) || die "Can't open $file, $!,";
 371     my $func;
 372     my $linenr = 0;
 373     print STDERR "$file:\n" if $debug;
 374     while ( <IN> ) {
 375
 376         # skip obsoleted source files entirely!
 377         last if /^#error\s+obsolete/;
 378         $linenr++;
 379         if ( !/;$/ && /^\**([a-zA-Z_].*[\s*])?([A-Za-z_0-9]+)\(.*([),]|$)/ ) {
 380             /^([^()]*(\([^()]*\)[^()]*)*)\(/;
 381             $1 =~ /([A-Za-z_0-9]*)$/;
 382             $func = $1;
 383         }
 384
 385         if ( /(((?:OSSL_|OPENSSL_)?[A-Z0-9]{2,})_F_([A-Z0-9_]+))/ ) {
 386             next unless exists $errorfile{$2};
 387             next if $1 eq "BIO_F_BUFFER_CTX";
 388             $usedfuncs{$1} = 1;
 389             if ( !exists $fcodes{$1} ) {
 390                 print STDERR "  New function $1\n" if $debug;
 391                 $fcodes{$1} = "X";
 392                 $fnew{$2}++;
 393             }
 394             $ftrans{$3} = $func unless exists $ftrans{$3};
 395             print STDERR "  Function $1 = $fcodes{$1}\n"
 396               if $debug;
 397         }
 398         if ( /(((?:OSSL_|OPENSSL_)?[A-Z0-9]{2,})_R_[A-Z0-9_]+)/ ) {
 399             next unless exists $errorfile{$2};
 400             $usedreasons{$1} = 1;
 401             if ( !exists $rcodes{$1} ) {
 402                 print STDERR "  New reason $1\n" if $debug;
 403                 $rcodes{$1} = "X";
 404                 $rnew{$2}++;
 405             }
 406             print STDERR "  Reason $1 = $rcodes{$1}\n" if $debug;
 407         }
 408     }
 409     close IN;
 410 }
 411 print STDERR "\n" if $debug;
 412
 413 # Now process each library in turn.
 414 &phase("Writing files");
 415 my $newstate = 0;
 416 foreach my $lib ( keys %errorfile ) {
 417     next if ! $fnew{$lib} && ! $rnew{$lib} && ! $rebuild;
 418     next if scalar keys %modules > 0 && !$modules{$lib};
 419     next if $nowrite;
 420     next if $hinc{$lib} eq 'NONE';
 421     print STDERR "$lib: $fnew{$lib} new functions\n" if $fnew{$lib};
 422     print STDERR "$lib: $rnew{$lib} new reasons\n" if $rnew{$lib};
 423     $newstate = 1;
 424
 425     # If we get here then we have some new error codes so we
 426     # need to rebuild the header file and C file.
 427
 428     # Make a sorted list of error and reason codes for later use.
 429     my @function = sort grep( /^${lib}_/, keys %fcodes );
 430     my @reasons  = sort grep( /^${lib}_/, keys %rcodes );
 431
 432     # indent level for innermost preprocessor lines
 433     my $indent = " ";
 434
 435     # Rewrite the header file
 436
 437     my $hfile = $hinc{$lib};
 438     $hfile =~ s/.h$/err.h/ if $internal;
 439     open( OUT, ">$hfile" ) || die "Can't write to $hfile, $!,";
 440     print OUT <<"EOF";
 441 /*
 442  * Generated by util/mkerr.pl DO NOT EDIT
 443  * Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
 444  *
 445  * Licensed under the Apache License 2.0 (the \"License\").  You may not use
 446  * this file except in compliance with the License.  You can obtain a copy
 447  * in the file LICENSE in the source distribution or at
 448  * https://www.openssl.org/source/license.html
 449  */
 450
 451 #ifndef OPENSSL_${lib}ERR_H
 452 # define OPENSSL_${lib}ERR_H
 453 # pragma once
 454
 455 # include <openssl/opensslconf.h>
 456 # include <openssl/symhacks.h>
 457
 458
 459 EOF
 460     if ( $internal ) {
 461         # Declare the load function because the generate C file
 462         # includes "fooerr.h" not "foo.h"
 463         if ($lib ne "SSL" && $lib ne "ASYNC"
 464                 && (grep { $lib eq uc $_ } @disablables, @disablables_int)) {
 465             print OUT <<"EOF";
 466 # include <openssl/opensslconf.h>
 467
 468 # ifndef OPENSSL_NO_${lib}
 469
 470 EOF
 471             $indent = "  ";
 472         }
 473         print OUT <<"EOF";
 474 #${indent}ifdef  __cplusplus
 475 extern \"C\"
 476 #${indent}endif
 477 int ERR_load_${lib}_strings(void);
 478 EOF
 479     } else {
 480         print OUT <<"EOF";
 481 # define ${lib}err(f, r) ERR_${lib}_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
 482
 483 EOF
 484         if ( ! $static ) {
 485             print OUT <<"EOF";
 486
 487 # ifdef  __cplusplus
 488 extern \"C\" {
 489 # endif
 490 int ERR_load_${lib}_strings(void);
 491 void ERR_unload_${lib}_strings(void);
 492 void ERR_${lib}_error(int function, int reason, char *file, int line);
 493 # ifdef  __cplusplus
 494 }
 495 # endif
 496 EOF
 497         }
 498     }
 499
 500     print OUT "\n/*\n * $lib function codes.\n */\n";
 501     print OUT "# ifndef OPENSSL_NO_DEPRECATED_3_0\n";
 502     foreach my $i ( @function ) {
 503         my $z = 48 - length($i);
 504         $z = 0 if $z < 0;
 505         if ( $fcodes{$i} eq "X" ) {
 506             $fassigned{$lib} =~ m/^:([^:]*):/;
 507             my $findcode = $1;
 508             $findcode = $fmax{$lib} if !defined $findcode;
 509             while ( $fassigned{$lib} =~ m/:$findcode:/ ) {
 510                 $findcode++;
 511             }
 512             $fcodes{$i} = $findcode;
 513             $fassigned{$lib} .= "$findcode:";
 514             print STDERR "New Function code $i\n" if $debug;
 515         }
 516         printf OUT "#${indent} define $i%s 0\n", " " x $z;
 517     }
 518     print OUT "# endif\n";
 519
 520     print OUT "\n/*\n * $lib reason codes.\n */\n";
 521     foreach my $i ( @reasons ) {
 522         my $z = 48 - length($i);
 523         $z = 0 if $z < 0;
 524         if ( $rcodes{$i} eq "X" ) {
 525             $rassigned{$lib} =~ m/^:([^:]*):/;
 526             my $findcode = $1;
 527             $findcode = $rmax{$lib} if !defined $findcode;
 528             while ( $rassigned{$lib} =~ m/:$findcode:/ ) {
 529                 $findcode++;
 530             }
 531             $rcodes{$i} = $findcode;
 532             $rassigned{$lib} .= "$findcode:";
 533             print STDERR "New Reason code $i\n" if $debug;
 534         }
 535         printf OUT "#${indent}define $i%s $rcodes{$i}\n", " " x $z;
 536     }
 537     print OUT "\n";
 538
 539     while (length($indent) > 0) {
 540         $indent = substr $indent, 0, -1;
 541         print OUT "#${indent}endif\n";
 542     }
 543
 544     # Rewrite the C source file containing the error details.
 545
 546     # First, read any existing reason string definitions:
 547     my $cfile = $errorfile{$lib};
 548     my $pack_lib = $internal ? "ERR_LIB_${lib}" : "0";
 549     my $hincf = $hfile;
 550     $hincf =~ s|.*include/||;
 551     if ( $hincf =~ m|^openssl/| ) {
 552         $hincf = "<${hincf}>";
 553     } else {
 554         $hincf = "\"${hincf}\"";
 555     }
 556
 557     open( OUT, ">$cfile" )
 558         || die "Can't open $cfile for writing, $!, stopped";
 559
 560     my $const = $internal ? 'const ' : '';
 561
 562     print OUT <<"EOF";
 563 /*
 564  * Generated by util/mkerr.pl DO NOT EDIT
 565  * Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
 566  *
 567  * Licensed under the Apache License 2.0 (the "License").  You may not use
 568  * this file except in compliance with the License.  You can obtain a copy
 569  * in the file LICENSE in the source distribution or at
 570  * https://www.openssl.org/source/license.html
 571  */
 572
 573 #include <openssl/err.h>
 574 #include $hincf
 575
 576 #ifndef OPENSSL_NO_ERR
 577
 578 static ${const}ERR_STRING_DATA ${lib}_str_reasons[] = {
 579 EOF
 580
 581     # Add each reason code.
 582     foreach my $i ( @reasons ) {
 583         my $rn;
 584         if ( exists $strings{$i} ) {
 585             $rn = $strings{$i};
 586             $rn = "" if $rn eq '*';
 587         } else {
 588             $i =~ /^${lib}_R_(\S+)$/;
 589             $rn = $1;
 590             $rn =~ tr/_[A-Z]/ [a-z]/;
 591             $strings{$i} = $rn;
 592         }
 593         my $short = "    {ERR_PACK($pack_lib, 0, $i), \"$rn\"},";
 594         if ( length($short) <= 80 ) {
 595             print OUT "$short\n";
 596         } else {
 597             print OUT "    {ERR_PACK($pack_lib, 0, $i),\n    \"$rn\"},\n";
 598         }
 599     }
 600     print OUT <<"EOF";
 601     {0, NULL}
 602 };
 603
 604 #endif
 605 EOF
 606     if ( $internal ) {
 607         print OUT <<"EOF";
 608
 609 int ERR_load_${lib}_strings(void)
 610 {
 611 #ifndef OPENSSL_NO_ERR
 612     if (ERR_reason_error_string(${lib}_str_reasons[0].error) == NULL)
 613         ERR_load_strings_const(${lib}_str_reasons);
 614 #endif
 615     return 1;
 616 }
 617 EOF
 618     } else {
 619         my $st = $static ? "static " : "";
 620         print OUT <<"EOF";
 621
 622 static int lib_code = 0;
 623 static int error_loaded = 0;
 624
 625 ${st}int ERR_load_${lib}_strings(void)
 626 {
 627     if (lib_code == 0)
 628         lib_code = ERR_get_next_error_library();
 629
 630     if (!error_loaded) {
 631 #ifndef OPENSSL_NO_ERR
 632         ERR_load_strings(lib_code, ${lib}_str_reasons);
 633 #endif
 634         error_loaded = 1;
 635     }
 636     return 1;
 637 }
 638
 639 ${st}void ERR_unload_${lib}_strings(void)
 640 {
 641     if (error_loaded) {
 642 #ifndef OPENSSL_NO_ERR
 643         ERR_unload_strings(lib_code, ${lib}_str_reasons);
 644 #endif
 645         error_loaded = 0;
 646     }
 647 }
 648
 649 ${st}void ERR_${lib}_error(int function, int reason, char *file, int line)
 650 {
 651     if (lib_code == 0)
 652         lib_code = ERR_get_next_error_library();
 653     ERR_raise(lib_code, reason);
 654     ERR_set_debug(file, line, NULL);
 655 }
 656 EOF
 657
 658     }
 659
 660     close OUT;
 661 }
 662
 663 &phase("Ending");
 664 # Make a list of unreferenced function and reason codes
 665 if ( $unref ) {
 666     my @funref;
 667     foreach ( keys %fcodes ) {
 668         push( @funref, $_ ) unless exists $usedfuncs{$_};
 669     }
 670     my @runref;
 671     foreach ( keys %rcodes ) {
 672         push( @runref, $_ ) unless exists $usedreasons{$_};
 673     }
 674     if ( @funref ) {
 675         print STDERR "The following function codes were not referenced:\n";
 676         foreach ( sort @funref ) {
 677             print STDERR "  $_\n";
 678         }
 679     }
 680     if ( @runref ) {
 681         print STDERR "The following reason codes were not referenced:\n";
 682         foreach ( sort @runref ) {
 683             print STDERR "  $_\n";
 684         }
 685     }
 686 }
 687
 688 die "Found $errors errors, quitting" if $errors;
 689
 690 # Update the state file
 691 if ( $newstate )  {
 692     open(OUT, ">$statefile.new")
 693         || die "Can't write $statefile.new, $!";
 694     print OUT <<"EOF";
 695 # Copyright 1999-$YEAR The OpenSSL Project Authors. All Rights Reserved.
 696 #
 697 # Licensed under the Apache License 2.0 (the "License").  You may not use
 698 # this file except in compliance with the License.  You can obtain a copy
 699 # in the file LICENSE in the source distribution or at
 700 # https://www.openssl.org/source/license.html
 701 EOF
 702     print OUT "\n# Function codes\n";
 703     foreach my $i ( sort keys %fcodes ) {
 704         my $short = "$i:$fcodes{$i}:";
 705         my $t = exists $strings{$i} ? $strings{$i} : "";
 706         $t = "\\\n\t" . $t if length($short) + length($t) > 80;
 707         print OUT "$short$t\n";
 708     }
 709     print OUT "\n#Reason codes\n";
 710     foreach my $i ( sort keys %rcodes ) {
 711         my $short = "$i:$rcodes{$i}:";
 712         my $t = exists $strings{$i} ? "$strings{$i}" : "";
 713         $t = "\\\n\t" . $t if length($short) + length($t) > 80;
 714         print OUT "$short$t\n" if !exists $rextra{$i};
 715     }
 716     close(OUT);
 717     if ( $skippedstate ) {
 718         print "Skipped state, leaving update in $statefile.new";
 719     } else {
 720         rename "$statefile", "$statefile.old"
 721             || die "Can't backup $statefile to $statefile.old, $!";
 722         rename "$statefile.new", "$statefile"
 723             || die "Can't rename $statefile to $statefile.new, $!";
 724     }
 725 }
 726
 727 exit;