mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
a2a09af086
Reviewed-by: Todd Short <todd.short@me.com> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19950)
707 lines
21 KiB
Perl
Executable File
707 lines
21 KiB
Perl
Executable File
#! /usr/bin/env perl
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# Copyright 1999-2022 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use strict;
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use warnings;
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use File::Basename;
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use File::Spec::Functions qw(abs2rel rel2abs);
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use lib ".";
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use configdata;
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my $config = "crypto/err/openssl.ec";
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my $debug = 0;
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my $internal = 0;
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my $nowrite = 0;
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my $rebuild = 0;
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my $reindex = 0;
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my $static = 0;
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my $unref = 0;
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my %modules = ();
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my $errors = 0;
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my @t = localtime();
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my $YEAR = $t[5] + 1900;
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sub phase
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{
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my $text = uc(shift);
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print STDERR "\n---\n$text\n" if $debug;
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}
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sub help
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{
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print STDERR <<"EOF";
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mkerr.pl [options] [files...]
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Options:
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-conf FILE Use the named config file FILE instead of the default.
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-debug Verbose output debugging on stderr.
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-internal Generate code that is to be built as part of OpenSSL itself.
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Also scans internal list of files.
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-module M Only useful with -internal!
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Only write files for library module M. Whether files are
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actually written or not depends on other options, such as
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-rebuild.
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Note: this option is cumulative. If not given at all, all
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internal modules will be considered.
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-nowrite Do not write the header/source files, even if changed.
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-rebuild Rebuild all header and C source files, even if there
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were no changes.
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-reindex Ignore previously assigned values (except for R records in
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the config file) and renumber everything starting at 100.
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-static Make the load/unload functions static.
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-unref List all unreferenced function and reason codes on stderr;
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implies -nowrite.
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-help Show this help text.
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... Additional arguments are added to the file list to scan,
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if '-internal' was NOT specified on the command line.
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EOF
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}
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while ( @ARGV ) {
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my $arg = $ARGV[0];
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last unless $arg =~ /-.*/;
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$arg = $1 if $arg =~ /-(-.*)/;
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if ( $arg eq "-conf" ) {
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$config = $ARGV[1];
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shift @ARGV;
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} elsif ( $arg eq "-debug" ) {
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$debug = 1;
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$unref = 1;
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} elsif ( $arg eq "-internal" ) {
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$internal = 1;
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} elsif ( $arg eq "-nowrite" ) {
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$nowrite = 1;
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} elsif ( $arg eq "-rebuild" ) {
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$rebuild = 1;
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} elsif ( $arg eq "-reindex" ) {
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$reindex = 1;
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} elsif ( $arg eq "-static" ) {
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$static = 1;
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} elsif ( $arg eq "-unref" ) {
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$unref = 1;
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$nowrite = 1;
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} elsif ( $arg eq "-module" ) {
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shift @ARGV;
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$modules{uc $ARGV[0]} = 1;
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} elsif ( $arg =~ /-*h(elp)?/ ) {
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&help();
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exit;
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} elsif ( $arg =~ /-.*/ ) {
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die "Unknown option $arg; use -h for help.\n";
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}
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shift @ARGV;
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}
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my @source;
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if ( $internal ) {
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die "Cannot mix -internal and -static\n" if $static;
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die "Extra parameters given.\n" if @ARGV;
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@source = ( glob('crypto/*.c'), glob('crypto/*/*.c'),
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glob('ssl/*.c'), glob('ssl/*/*.c'), glob('ssl/*/*/*.c'),
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glob('providers/*.c'), glob('providers/*/*.c'),
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glob('providers/*/*/*.c') );
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} else {
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die "-module isn't useful without -internal\n" if scalar keys %modules > 0;
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@source = @ARGV;
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}
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# Data parsed out of the config and state files.
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my %hpubinc; # lib -> public header
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my %libpubinc; # public header -> lib
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my %hprivinc; # lib -> private header
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my %libprivinc; # private header -> lib
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my %cskip; # error_file -> lib
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my %errorfile; # lib -> error file name
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my %rmax; # lib -> max assigned reason code
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my %rassigned; # lib -> colon-separated list of assigned reason codes
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my %rnew; # lib -> count of new reason codes
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my %rextra; # "extra" reason code -> lib
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my %rcodes; # reason-name -> value
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my $statefile; # state file with assigned reason and function codes
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my %strings; # define -> text
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# Read and parse the config file
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open(IN, "$config") || die "Can't open config file $config, $!,";
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while ( <IN> ) {
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next if /^#/ || /^$/;
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if ( /^L\s+(\S+)\s+(\S+)\s+(\S+)(?:\s+(\S+))?\s+$/ ) {
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my $lib = $1;
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my $pubhdr = $2;
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my $err = $3;
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my $privhdr = $4 // 'NONE';
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$hpubinc{$lib} = $pubhdr;
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$libpubinc{$pubhdr} = $lib;
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$hprivinc{$lib} = $privhdr;
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$libprivinc{$privhdr} = $lib;
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$cskip{$err} = $lib;
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$errorfile{$lib} = $err;
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next if $err eq 'NONE';
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$rmax{$lib} = 100;
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$rassigned{$lib} = ":";
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$rnew{$lib} = 0;
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die "Public header file must be in include/openssl ($pubhdr is not)\n"
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if ($internal
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&& $pubhdr ne 'NONE'
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&& $pubhdr !~ m|^include/openssl/|);
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die "Private header file may only be specified with -internal ($privhdr given)\n"
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unless ($privhdr eq 'NONE' || $internal);
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} elsif ( /^R\s+(\S+)\s+(\S+)/ ) {
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$rextra{$1} = $2;
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$rcodes{$1} = $2;
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} elsif ( /^S\s+(\S+)/ ) {
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$statefile = $1;
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} else {
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die "Illegal config line $_\n";
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}
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}
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close IN;
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if ( ! $statefile ) {
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$statefile = $config;
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$statefile =~ s/.ec/.txt/;
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}
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# The statefile has all the previous assignments.
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&phase("Reading state");
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my $skippedstate = 0;
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if ( ! $reindex && $statefile ) {
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open(STATE, "<$statefile") || die "Can't open $statefile, $!";
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# Scan function and reason codes and store them: keep a note of the
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# maximum code used.
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while ( <STATE> ) {
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next if /^#/ || /^$/;
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my $name;
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my $code;
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if ( /^(.+):(\d+):\\$/ ) {
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$name = $1;
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$code = $2;
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my $next = <STATE>;
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$next =~ s/^\s*(.*)\s*$/$1/;
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die "Duplicate define $name" if exists $strings{$name};
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$strings{$name} = $next;
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} elsif ( /^(\S+):(\d+):(.*)$/ ) {
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$name = $1;
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$code = $2;
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die "Duplicate define $name" if exists $strings{$name};
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$strings{$name} = $3;
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} else {
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die "Bad line in $statefile:\n$_\n";
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}
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my $lib = $name;
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$lib =~ s/^((?:OSSL_|OPENSSL_)?[^_]{2,}).*$/$1/;
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$lib = "SSL" if $lib =~ /TLS/;
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if ( !defined $errorfile{$lib} ) {
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print "Skipping $_";
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$skippedstate++;
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next;
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}
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next if $errorfile{$lib} eq 'NONE';
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if ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_R_/ ) {
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die "$lib reason code $code collision at $name\n"
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if $rassigned{$lib} =~ /:$code:/;
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$rassigned{$lib} .= "$code:";
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if ( !exists $rextra{$name} ) {
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$rmax{$lib} = $code if $code > $rmax{$lib};
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}
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$rcodes{$name} = $code;
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} elsif ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_F_/ ) {
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# We do nothing with the function codes, just let them go away
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} else {
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die "Bad line in $statefile:\n$_\n";
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}
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}
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close(STATE);
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if ( $debug ) {
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foreach my $lib ( sort keys %rmax ) {
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print STDERR "Reason codes for ${lib}:\n";
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if ( $rassigned{$lib} =~ m/^:(.*):$/ ) {
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my @rassigned = sort { $a <=> $b } split( ":", $1 );
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print STDERR " ", join(' ', @rassigned), "\n";
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} else {
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print STDERR " --none--\n";
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}
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}
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}
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}
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# Scan each C source file and look for reason codes. This is done by
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# looking for strings that "look like" reason codes: basically anything
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# consisting of all uppercase and numerics which _R_ in it and which has
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# the name of an error library at the start. Should there be anything else,
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# such as a type name, we add exceptions here.
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# If a code doesn't exist in list compiled from headers then mark it
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# with the value "X" as a place holder to give it a value later.
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# Store all reason codes found in and %usedreasons so all those unreferenced
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# can be printed out.
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&phase("Scanning source");
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my %usedreasons;
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foreach my $file ( @source ) {
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# Don't parse the error source file.
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next if exists $cskip{$file};
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open( IN, "<$file" ) || die "Can't open $file, $!,";
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my $func;
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my $linenr = 0;
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print STDERR "$file:\n" if $debug;
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while ( <IN> ) {
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# skip obsoleted source files entirely!
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last if /^#error\s+obsolete/;
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$linenr++;
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if ( /(((?:OSSL_|OPENSSL_)?[A-Z0-9]{2,})_R_[A-Z0-9_]+)/ ) {
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next unless exists $errorfile{$2};
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next if $errorfile{$2} eq 'NONE';
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$usedreasons{$1} = 1;
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if ( !exists $rcodes{$1} ) {
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print STDERR " New reason $1\n" if $debug;
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$rcodes{$1} = "X";
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$rnew{$2}++;
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}
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print STDERR " Reason $1 = $rcodes{$1}\n" if $debug;
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}
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}
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close IN;
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}
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print STDERR "\n" if $debug;
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# Now process each library in turn.
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&phase("Writing files");
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my $newstate = 0;
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foreach my $lib ( keys %errorfile ) {
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next if ! $rnew{$lib} && ! $rebuild;
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next if scalar keys %modules > 0 && !$modules{$lib};
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next if $nowrite;
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print STDERR "$lib: $rnew{$lib} new reasons\n" if $rnew{$lib};
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$newstate = 1;
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# If we get here then we have some new error codes so we
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# need to rebuild the header file and C file.
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# Make a sorted list of error and reason codes for later use.
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my @reasons = sort grep( /^${lib}_/, keys %rcodes );
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# indent level for innermost preprocessor lines
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my $indent = " ";
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# Flag if the sub-library is disablable
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# There are a few exceptions, where disabling the sub-library
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# doesn't actually remove the whole sub-library, but rather implements
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# it with a NULL backend.
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my $disablable =
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($lib ne "SSL" && $lib ne "ASYNC" && $lib ne "DSO"
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&& (grep { $lib eq uc $_ } @disablables, @disablables_int));
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# Rewrite the internal header file if there is one ($internal only!)
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if ($hprivinc{$lib} ne 'NONE') {
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my $hfile = $hprivinc{$lib};
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my $guard = $hfile;
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if ($guard =~ m|^include/|) {
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$guard = $';
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} else {
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$guard = basename($guard);
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}
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$guard = "OSSL_" . join('_', split(m|[./]|, uc $guard));
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open( OUT, ">$hfile" ) || die "Can't write to $hfile, $!,";
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print OUT <<"EOF";
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/*
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* Generated by util/mkerr.pl DO NOT EDIT
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* Copyright 2020-$YEAR The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the \"License\"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef $guard
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# define $guard
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# pragma once
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# include <openssl/opensslconf.h>
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# include <openssl/symhacks.h>
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# ifdef __cplusplus
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extern \"C\" {
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# endif
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EOF
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$indent = ' ';
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if ($disablable) {
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print OUT <<"EOF";
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# ifndef OPENSSL_NO_${lib}
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EOF
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$indent = " ";
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}
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print OUT <<"EOF";
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int ossl_err_load_${lib}_strings(void);
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EOF
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# If this library doesn't have a public header file, we write all
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# definitions that would end up there here instead
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if ($hpubinc{$lib} eq 'NONE') {
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print OUT "\n/*\n * $lib reason codes.\n */\n";
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foreach my $i ( @reasons ) {
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my $z = 48 - length($i);
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$z = 0 if $z < 0;
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if ( $rcodes{$i} eq "X" ) {
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$rassigned{$lib} =~ m/^:([^:]*):/;
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my $findcode = $1;
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$findcode = $rmax{$lib} if !defined $findcode;
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while ( $rassigned{$lib} =~ m/:$findcode:/ ) {
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$findcode++;
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}
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$rcodes{$i} = $findcode;
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$rassigned{$lib} .= "$findcode:";
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print STDERR "New Reason code $i\n" if $debug;
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}
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printf OUT "#${indent}define $i%s $rcodes{$i}\n", " " x $z;
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}
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print OUT "\n";
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}
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# This doesn't go all the way down to zero, to allow for the ending
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# brace for 'extern "C" {'.
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while (length($indent) > 1) {
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$indent = substr $indent, 0, -1;
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print OUT "#${indent}endif\n";
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}
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print OUT <<"EOF";
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# ifdef __cplusplus
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}
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# endif
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#endif
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EOF
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close OUT;
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}
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# Rewrite the public header file
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if ($hpubinc{$lib} ne 'NONE') {
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my $extra_include =
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$internal
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? ($lib ne 'SSL'
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? "# include <openssl/cryptoerr_legacy.h>\n"
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: "# include <openssl/sslerr_legacy.h>\n")
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: '';
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my $hfile = $hpubinc{$lib};
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my $guard = $hfile;
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$guard =~ s|^include/||;
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$guard = join('_', split(m|[./]|, uc $guard));
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$guard = "OSSL_" . $guard unless $internal;
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open( OUT, ">$hfile" ) || die "Can't write to $hfile, $!,";
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print OUT <<"EOF";
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/*
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* Generated by util/mkerr.pl DO NOT EDIT
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* Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the \"License\"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef $guard
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# define $guard
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# pragma once
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# include <openssl/opensslconf.h>
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# include <openssl/symhacks.h>
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$extra_include
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EOF
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$indent = ' ';
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if ( $internal ) {
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if ($disablable) {
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print OUT <<"EOF";
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# ifndef OPENSSL_NO_${lib}
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EOF
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$indent .= ' ';
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}
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} else {
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print OUT <<"EOF";
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# define ${lib}err(f, r) ERR_${lib}_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
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# define ERR_R_${lib}_LIB ERR_${lib}_lib()
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EOF
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if ( ! $static ) {
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print OUT <<"EOF";
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# ifdef __cplusplus
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extern \"C\" {
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# endif
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int ERR_load_${lib}_strings(void);
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void ERR_unload_${lib}_strings(void);
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void ERR_${lib}_error(int function, int reason, const char *file, int line);
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# ifdef __cplusplus
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}
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# endif
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EOF
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}
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}
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print OUT "\n/*\n * $lib reason codes.\n */\n";
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foreach my $i ( @reasons ) {
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my $z = 48 - length($i);
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$z = 0 if $z < 0;
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if ( $rcodes{$i} eq "X" ) {
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$rassigned{$lib} =~ m/^:([^:]*):/;
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my $findcode = $1;
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$findcode = $rmax{$lib} if !defined $findcode;
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while ( $rassigned{$lib} =~ m/:$findcode:/ ) {
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$findcode++;
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}
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$rcodes{$i} = $findcode;
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$rassigned{$lib} .= "$findcode:";
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print STDERR "New Reason code $i\n" if $debug;
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}
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printf OUT "#${indent}define $i%s $rcodes{$i}\n", " " x $z;
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}
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print OUT "\n";
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while (length($indent) > 0) {
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$indent = substr $indent, 0, -1;
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print OUT "#${indent}endif\n";
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}
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close OUT;
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}
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|
# Rewrite the C source file containing the error details.
|
|
|
|
if ($errorfile{$lib} ne 'NONE') {
|
|
# First, read any existing reason string definitions:
|
|
my $cfile = $errorfile{$lib};
|
|
my $pack_lib = $internal ? "ERR_LIB_${lib}" : "0";
|
|
my $hpubincf = $hpubinc{$lib};
|
|
my $hprivincf = $hprivinc{$lib};
|
|
my $includes = '';
|
|
if ($internal) {
|
|
if ($hpubincf ne 'NONE') {
|
|
$hpubincf =~ s|^include/||;
|
|
$includes .= "#include <${hpubincf}>\n";
|
|
}
|
|
if ($hprivincf =~ m|^include/|) {
|
|
$hprivincf = $';
|
|
} else {
|
|
$hprivincf = abs2rel(rel2abs($hprivincf),
|
|
rel2abs(dirname($cfile)));
|
|
}
|
|
$includes .= "#include \"${hprivincf}\"\n";
|
|
} else {
|
|
$includes .= "#include \"${hpubincf}\"\n";
|
|
}
|
|
|
|
open( OUT, ">$cfile" )
|
|
|| die "Can't open $cfile for writing, $!, stopped";
|
|
|
|
my $const = $internal ? 'const ' : '';
|
|
|
|
print OUT <<"EOF";
|
|
/*
|
|
* Generated by util/mkerr.pl DO NOT EDIT
|
|
* Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <openssl/err.h>
|
|
$includes
|
|
EOF
|
|
$indent = '';
|
|
if ( $internal ) {
|
|
if ($disablable) {
|
|
print OUT <<"EOF";
|
|
#ifndef OPENSSL_NO_${lib}
|
|
|
|
EOF
|
|
$indent .= ' ';
|
|
}
|
|
}
|
|
print OUT <<"EOF";
|
|
#${indent}ifndef OPENSSL_NO_ERR
|
|
|
|
static ${const}ERR_STRING_DATA ${lib}_str_reasons[] = {
|
|
EOF
|
|
|
|
# Add each reason code.
|
|
foreach my $i ( @reasons ) {
|
|
my $rn;
|
|
if ( exists $strings{$i} ) {
|
|
$rn = $strings{$i};
|
|
$rn = "" if $rn eq '*';
|
|
} else {
|
|
$i =~ /^${lib}_R_(\S+)$/;
|
|
$rn = $1;
|
|
$rn =~ tr/_[A-Z]/ [a-z]/;
|
|
$strings{$i} = $rn;
|
|
}
|
|
my $short = " {ERR_PACK($pack_lib, 0, $i), \"$rn\"},";
|
|
if ( length($short) <= 80 ) {
|
|
print OUT "$short\n";
|
|
} else {
|
|
print OUT " {ERR_PACK($pack_lib, 0, $i),\n \"$rn\"},\n";
|
|
}
|
|
}
|
|
print OUT <<"EOF";
|
|
{0, NULL}
|
|
};
|
|
|
|
#${indent}endif
|
|
EOF
|
|
if ( $internal ) {
|
|
print OUT <<"EOF";
|
|
|
|
int ossl_err_load_${lib}_strings(void)
|
|
{
|
|
#${indent}ifndef OPENSSL_NO_ERR
|
|
if (ERR_reason_error_string(${lib}_str_reasons[0].error) == NULL)
|
|
ERR_load_strings_const(${lib}_str_reasons);
|
|
#${indent}endif
|
|
return 1;
|
|
}
|
|
EOF
|
|
} else {
|
|
my $st = $static ? "static " : "";
|
|
print OUT <<"EOF";
|
|
|
|
static int lib_code = 0;
|
|
static int error_loaded = 0;
|
|
|
|
${st}int ERR_load_${lib}_strings(void)
|
|
{
|
|
if (lib_code == 0)
|
|
lib_code = ERR_get_next_error_library();
|
|
|
|
if (!error_loaded) {
|
|
#ifndef OPENSSL_NO_ERR
|
|
ERR_load_strings(lib_code, ${lib}_str_reasons);
|
|
#endif
|
|
error_loaded = 1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
${st}void ERR_unload_${lib}_strings(void)
|
|
{
|
|
if (error_loaded) {
|
|
#ifndef OPENSSL_NO_ERR
|
|
ERR_unload_strings(lib_code, ${lib}_str_reasons);
|
|
#endif
|
|
error_loaded = 0;
|
|
}
|
|
}
|
|
|
|
${st}void ERR_${lib}_error(int function, int reason, const char *file, int line)
|
|
{
|
|
if (lib_code == 0)
|
|
lib_code = ERR_get_next_error_library();
|
|
ERR_raise(lib_code, reason);
|
|
ERR_set_debug(file, line, NULL);
|
|
}
|
|
|
|
${st}int ERR_${lib}_lib(void)
|
|
{
|
|
if (lib_code == 0)
|
|
lib_code = ERR_get_next_error_library();
|
|
return lib_code;
|
|
}
|
|
EOF
|
|
|
|
}
|
|
|
|
while (length($indent) > 1) {
|
|
$indent = substr $indent, 0, -1;
|
|
print OUT "#${indent}endif\n";
|
|
}
|
|
if ($internal && $disablable) {
|
|
print OUT <<"EOF";
|
|
#else
|
|
NON_EMPTY_TRANSLATION_UNIT
|
|
#endif
|
|
EOF
|
|
}
|
|
close OUT;
|
|
}
|
|
}
|
|
|
|
&phase("Ending");
|
|
# Make a list of unreferenced reason codes
|
|
if ( $unref ) {
|
|
my @runref;
|
|
foreach ( keys %rcodes ) {
|
|
push( @runref, $_ ) unless exists $usedreasons{$_};
|
|
}
|
|
if ( @runref ) {
|
|
print STDERR "The following reason codes were not referenced:\n";
|
|
foreach ( sort @runref ) {
|
|
print STDERR " $_\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
die "Found $errors errors, quitting" if $errors;
|
|
|
|
# Update the state file
|
|
if ( $newstate ) {
|
|
open(OUT, ">$statefile.new")
|
|
|| die "Can't write $statefile.new, $!";
|
|
print OUT <<"EOF";
|
|
# Copyright 1999-$YEAR The OpenSSL Project Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
# this file except in compliance with the License. You can obtain a copy
|
|
# in the file LICENSE in the source distribution or at
|
|
# https://www.openssl.org/source/license.html
|
|
EOF
|
|
print OUT "\n#Reason codes\n";
|
|
foreach my $i ( sort keys %rcodes ) {
|
|
my $short = "$i:$rcodes{$i}:";
|
|
my $t = exists $strings{$i} ? "$strings{$i}" : "";
|
|
$t = "\\\n\t" . $t if length($short) + length($t) > 80;
|
|
print OUT "$short$t\n";
|
|
}
|
|
close(OUT);
|
|
if ( $skippedstate ) {
|
|
print "Skipped state, leaving update in $statefile.new";
|
|
} else {
|
|
rename "$statefile", "$statefile.old"
|
|
|| die "Can't backup $statefile to $statefile.old, $!";
|
|
rename "$statefile.new", "$statefile"
|
|
|| die "Can't rename $statefile to $statefile.new, $!";
|
|
}
|
|
}
|
|
|
|
exit;
|