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helper.pl
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#!/usr/bin/env perl
use strict;
use warnings;
use Getopt::Long;
use File::Find 'find';
use File::Basename 'basename';
use File::Glob 'bsd_glob';
sub read_file {
my $f = shift;
open my $fh, "<", $f or die "FATAL: read_rawfile() cannot open file '$f': $!";
binmode $fh;
return do { local $/; <$fh> };
}
sub write_file {
my ($f, $data) = @_;
die "FATAL: write_file() no data" unless defined $data;
open my $fh, ">", $f or die "FATAL: write_file() cannot open file '$f': $!";
binmode $fh;
print $fh $data or die "FATAL: write_file() cannot write to '$f': $!";
close $fh or die "FATAL: write_file() cannot close '$f': $!";
return;
}
sub check_source {
my @all_files = (bsd_glob("makefile*"), bsd_glob("*.sh"), bsd_glob("*.pl"));
find({ wanted=>sub { push @all_files, $_ if -f $_ }, no_chdir=>1 }, qw/src tests demos/);
my $fails = 0;
for my $file (sort @all_files) {
next unless $file =~ /\.(c|h|pl|py|sh)$/ || basename($file) =~ /^makefile/i;
my $troubles = {};
my $lineno = 1;
my $content = read_file($file);
push @{$troubles->{crlf_line_end}}, '?' if $content =~ /\r/;
for my $l (split /\n/, $content) {
push @{$troubles->{merge_conflict}}, $lineno if $l =~ /^(<<<<<<<|=======|>>>>>>>)([^<=>]|$)/;
push @{$troubles->{trailing_space}}, $lineno if $l =~ / $/;
push @{$troubles->{tab}}, $lineno if $l =~ /\t/ && basename($file) !~ /^makefile/i;
push @{$troubles->{non_ascii_char}}, $lineno if $l =~ /[^[:ascii:]]/;
push @{$troubles->{cpp_comment}}, $lineno if $file =~ /\.(c|h)$/ && ($l =~ /\s\/\// || $l =~ /\/\/\s/);
# in ./src we prefer using XMEMCPY, XMALLOC, XFREE ...
push @{$troubles->{unwanted_memcpy}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcpy\s*\(/;
push @{$troubles->{unwanted_malloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmalloc\s*\(/;
push @{$troubles->{unwanted_realloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\brealloc\s*\(/;
push @{$troubles->{unwanted_calloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bcalloc\s*\(/;
push @{$troubles->{unwanted_free}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bfree\s*\(/;
push @{$troubles->{unwanted_memset}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemset\s*\(/;
push @{$troubles->{unwanted_memcpy}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcpy\s*\(/;
push @{$troubles->{unwanted_memmove}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemmove\s*\(/;
push @{$troubles->{unwanted_memcmp}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcmp\s*\(/;
push @{$troubles->{unwanted_strcmp}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bstrcmp\s*\(/;
push @{$troubles->{unwanted_clock}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bclock\s*\(/;
push @{$troubles->{unwanted_qsort}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bqsort\s*\(/;
if ($file =~ m|src/.*\.c$| &&
$file !~ m|src/ciphers/.*\.c$| &&
$file !~ m|src/hashes/.*\.c$| &&
$file !~ m|src/math/.+_desc.c$| &&
$file !~ m|src/stream/sober128/sober128.c$| &&
$l =~ /^static\s+\S+\s+([^_][a-zA-Z0-9_]+)\s*\(/) {
push @{$troubles->{staticfunc_name}}, "$lineno($1)";
}
$lineno++;
}
for my $k (sort keys %$troubles) {
warn "[$k] $file line:" . join(",", @{$troubles->{$k}}) . "\n";
$fails++;
}
}
warn( $fails > 0 ? "check-source: FAIL $fails\n" : "check-source: PASS\n" );
return $fails;
}
sub check_defines {
my $fails = 0;
my $cust_h = read_file("src/headers/tomcrypt_custom.h");
my $cryp_c = read_file("src/misc/crypt/crypt.c");
$cust_h =~ s|/\*.*?\*/||sg; # remove comments
$cryp_c =~ s|/\*.*?\*/||sg; # remove comments
my %def = map { $_ => 1 } map { my $x = $_; $x =~ s/^\s*#define\s+(LTC_\S+).*$/$1/; $x } grep { /^\s*#define\s+LTC_\S+/ } split /\n/, $cust_h;
for my $d (sort keys %def) {
next if $d =~ /^LTC_(DH\d+|ECC\d+|ECC_\S+|MPI|MUTEX_\S+\(x\)|NO_\S+)$/;
warn "$d missing in src/misc/crypt/crypt.c\n" and $fails++ if $cryp_c !~ /\Q$d\E/;
}
warn( $fails > 0 ? "check-defines: FAIL $fails\n" : "check-defines: PASS\n" );
return $fails;
}
sub check_descriptor {
my $which = shift;
my $what = shift;
my @src;
my @descriptors;
find({ wanted => sub { push @src, $_ if $_ =~ /\.c$/ }, no_chdir=>1 }, "./src/${which}/");
for my $f (@src) {
my @n = map { my $x = $_; $x =~ s/^.*?ltc_${what}_descriptor\s+(\S+).*$/$1/; $x } grep { $_ =~ /ltc_${what}_descriptor/ } split /\n/, read_file($f);
push @descriptors, @n if @n;
}
my $fails = 0;
for my $d (@descriptors) {
for my $f ("./src/misc/crypt/crypt_register_all_${which}.c") {
my $txt = read_file($f);
warn "$d missing in $f\n" and $fails++ if $txt !~ /\Q$d\E/;
}
}
for my $d (@descriptors) {
for my $f ("./tests/test.c") {
my $txt = read_file($f);
warn "$d missing in $f\n" and $fails++ if $txt !~ /\Q$d\E/;
}
}
my $name = sprintf("%-17s", "check-${which}:");
warn( $fails > 0 ? "${name}FAIL $fails\n" : "${name}PASS\n" );
return $fails;
}
sub check_descriptors {
my $fails = 0;
$fails = $fails + check_descriptor("ciphers", "cipher");
$fails = $fails + check_descriptor("hashes", "hash");
$fails = $fails + check_descriptor("prngs", "prng");
return $fails;
}
sub check_comments {
my $fails = 0;
my $first_comment = <<'MARKER';
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*/
MARKER
my $last_comment = <<'MARKER';
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */
MARKER
my @all_files;
find({ wanted=> sub { push @all_files, $_ if $_ =~ /\.(c|h)$/ }, no_chdir=>1 }, 'demos', 'src', 'tests');
for my $f (@all_files) {
my $txt = read_file($f);
if ($txt !~ /^\Q$first_comment\E/s) {
warn "[first_comment] $f\n";
$fails++;
}
if ($txt !~ /\Q$last_comment\E\s*$/s) {
warn "[last_comment] $f\n";
$fails++;
}
}
warn( $fails > 0 ? "check-comments: FAIL $fails\n" : "check-comments: PASS\n" );
return $fails;
}
sub prepare_variable {
my ($varname, @list) = @_;
my $output = "$varname=";
my $len = length($output);
foreach my $obj (sort @list) {
$len = $len + length $obj;
$obj =~ s/\*/\$/;
if ($len > 100) {
$output .= "\\\n";
$len = length $obj;
}
$output .= $obj . ' ';
}
$output =~ s/ $//;
return $output;
}
sub prepare_msvc_files_xml {
my ($all, $exclude_re, $targets) = @_;
my $last = [];
my $depth = 2;
# sort files in the same order as visual studio (ugly, I know)
my @parts = ();
for my $orig (@$all) {
my $p = $orig;
$p =~ s|/|/~|g;
$p =~ s|/~([^/]+)$|/$1|g;
# now we have: 'src/pk/rsa/rsa_verify_hash.c' > 'src/~pk/~rsa/rsa_verify_hash.c'
my @l = map { sprintf "% -99s", $_ } split /\//, $p;
push @parts, [ $orig, join(':', @l) ];
}
my @sorted = map { $_->[0] } sort { $a->[1] cmp $b->[1] } @parts;
my $files = "<Files>\r\n";
for my $full (@sorted) {
my @items = split /\//, $full; # split by '/'
$full =~ s|/|\\|g; # replace '/' bt '\'
shift @items; # drop first one (src)
pop @items; # drop last one (filename.ext)
my $current = \@items;
if (join(':', @$current) ne join(':', @$last)) {
my $common = 0;
$common++ while ($last->[$common] && $current->[$common] && $last->[$common] eq $current->[$common]);
my $back = @$last - $common;
if ($back > 0) {
$files .= ("\t" x --$depth) . "</Filter>\r\n" for (1..$back);
}
my $fwd = [ @$current ]; splice(@$fwd, 0, $common);
for my $i (0..scalar(@$fwd) - 1) {
$files .= ("\t" x $depth) . "<Filter\r\n";
$files .= ("\t" x $depth) . "\tName=\"$fwd->[$i]\"\r\n";
$files .= ("\t" x $depth) . "\t>\r\n";
$depth++;
}
$last = $current;
}
$files .= ("\t" x $depth) . "<File\r\n";
$files .= ("\t" x $depth) . "\tRelativePath=\"$full\"\r\n";
$files .= ("\t" x $depth) . "\t>\r\n";
if ($full =~ $exclude_re) {
for (@$targets) {
$files .= ("\t" x $depth) . "\t<FileConfiguration\r\n";
$files .= ("\t" x $depth) . "\t\tName=\"$_\"\r\n";
$files .= ("\t" x $depth) . "\t\tExcludedFromBuild=\"true\"\r\n";
$files .= ("\t" x $depth) . "\t\t>\r\n";
$files .= ("\t" x $depth) . "\t\t<Tool\r\n";
$files .= ("\t" x $depth) . "\t\t\tName=\"VCCLCompilerTool\"\r\n";
$files .= ("\t" x $depth) . "\t\t\tAdditionalIncludeDirectories=\"\"\r\n";
$files .= ("\t" x $depth) . "\t\t\tPreprocessorDefinitions=\"\"\r\n";
$files .= ("\t" x $depth) . "\t\t/>\r\n";
$files .= ("\t" x $depth) . "\t</FileConfiguration>\r\n";
}
}
########### aes_enc "hack" disabled - discussion: https://github.com/libtom/libtomcrypt/pull/158
# if ($full eq 'src\ciphers\aes\aes.c') { #hack
# my %cmd = (
# 'Debug|Win32' => [ 'Debug/aes.obj;Debug/aes_enc.obj', 'cl /nologo /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Debug/libtomcrypt.pch" /YX /Fo"Debug/" /Fd"Debug/" /FD /GZ /c $(InputPath)
cl /nologo /DENCRYPT_ONLY /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Debug/libtomcrypt.pch" /YX /Fo"Debug/aes_enc.obj" /Fd"Debug/" /FD /GZ /c $(InputPath)
' ],
# 'Release|Win32' => [ 'Release/aes.obj;Release/aes_enc.obj', 'cl /nologo /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Release/libtomcrypt.pch" /YX /Fo"Release/" /Fd"Release/" /FD /GZ /c $(InputPath)
cl /nologo /DENCRYPT_ONLY /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Release/libtomcrypt.pch" /YX /Fo"Release/aes_enc.obj" /Fd"Release/" /FD /GZ /c $(InputPath)
' ],
# );
# for (@$targets) {
# next unless $cmd{$_};
# $files .= ("\t" x $depth) . "\t<FileConfiguration\r\n";
# $files .= ("\t" x $depth) . "\t\tName=\"$_\"\r\n";
# $files .= ("\t" x $depth) . "\t\t>\r\n";
# $files .= ("\t" x $depth) . "\t\t<Tool\r\n";
# $files .= ("\t" x $depth) . "\t\t\tName=\"VCCustomBuildTool\"\r\n";
# $files .= ("\t" x $depth) . "\t\t\tCommandLine=\"$cmd{$_}[1]\"\r\n";
# $files .= ("\t" x $depth) . "\t\t\tOutputs=\"$cmd{$_}[0]\"\r\n";
# $files .= ("\t" x $depth) . "\t\t/>\r\n";
# $files .= ("\t" x $depth) . "\t</FileConfiguration>\r\n";
# }
# }
$files .= ("\t" x $depth) . "</File>\r\n";
}
$files .= ("\t" x --$depth) . "</Filter>\r\n" for (@$last);
$files .= "\t</Files>";
return $files;
}
sub patch_makefile {
my ($content, @variables) = @_;
for my $v (@variables) {
if ($v =~ /^([A-Z0-9_]+)\s*=.*$/si) {
my $name = $1;
$content =~ s/\n\Q$name\E\b.*?[^\\]\n/\n$v\n/s;
}
else {
die "patch_makefile failed: " . substr($v, 0, 30) . "..";
}
}
return $content;
}
sub version_from_tomcrypt_h {
my $h = read_file(shift);
if ($h =~ /\n#define\s*SCRYPT\s*"([0-9]+)\.([0-9]+)\.([0-9]+)(.*)"/s) {
return "VERSION_PC=$1.$2.$3", "VERSION_LT=0:$1$2", "VERSION=$1.$2.$3$4";
}
else {
die "#define SCRYPT not found in tomcrypt.h";
}
}
sub process_makefiles {
my $write = shift;
my $changed_count = 0;
my @c = ();
find({ no_chdir => 1, wanted => sub { push @c, $_ if -f $_ && $_ =~ /\.c$/ && $_ !~ /tab.c$/ } }, 'src');
my @h = ();
find({ no_chdir => 1, wanted => sub { push @h, $_ if -f $_ && $_ =~ /\.h$/ && $_ !~ /dh_static.h$/ } }, 'src');
my @all = ();
find({ no_chdir => 1, wanted => sub { push @all, $_ if -f $_ && $_ =~ /\.(c|h)$/ } }, 'src');
my @t = qw();
find({ no_chdir => 1, wanted => sub { push @t, $_ if $_ =~ /(common|no_prng|_tests?|test).c$/ } }, 'tests');
my @o = sort ('src/ciphers/aes/aes_enc.o', map { my $x = $_; $x =~ s/\.c$/.o/; $x } @c);
my $var_o = prepare_variable("OBJECTS", @o);
my $var_h = prepare_variable("HEADERS", (sort @h));
(my $var_obj = $var_o) =~ s/\.o\b/.obj/sg;
my $var_to = prepare_variable("TOBJECTS", sort map { my $x = $_; $x =~ s/\.c$/.o/; $x } @t);
(my $var_tobj = $var_to) =~ s/\.o\b/.obj/sg;
my @ver_version = version_from_tomcrypt_h("src/headers/tomcrypt.h");
# update MSVC project files
my $msvc_files = prepare_msvc_files_xml(\@all, qr/tab\.c$/, ['Debug|Win32', 'Release|Win32', 'Debug|x64', 'Release|x64']);
for my $m (qw/libtomcrypt_VS2008.vcproj/) {
my $old = read_file($m);
my $new = $old;
$new =~ s|<Files>.*</Files>|$msvc_files|s;
if ($old ne $new) {
write_file($m, $new) if $write;
warn "changed: $m\n";
$changed_count++;
}
}
# update OBJECTS + HEADERS in makefile*
for my $m (qw/ makefile makefile.shared makefile.unix makefile.mingw makefile.msvc makefile_include.mk /) {
my $old = read_file($m);
my $new = $m eq 'makefile.msvc' ? patch_makefile($old, $var_obj, $var_h, $var_tobj, @ver_version)
: patch_makefile($old, $var_o, $var_h, $var_to, @ver_version);
if ($old ne $new) {
write_file($m, $new) if $write;
warn "changed: $m\n";
$changed_count++;
}
}
if ($write) {
return 0; # no failures
}
else {
warn( $changed_count > 0 ? "check-makefiles: FAIL $changed_count\n" : "check-makefiles: PASS\n" );
return $changed_count;
}
}
sub die_usage {
die <<"MARKER";
usage: $0 -s OR $0 --check-source
$0 -c OR $0 --check-descriptors
$0 -d OR $0 --check-defines
$0 -o OR $0 --check-comments
$0 -m OR $0 --check-makefiles
$0 -a OR $0 --check-all
$0 -u OR $0 --update-makefiles
$0 --fixupind crypt.ind
MARKER
}
GetOptions( "s|check-source" => \my $check_source,
"c|check-descriptors" => \my $check_descriptors,
"d|check-defines" => \my $check_defines,
"o|check-comments" => \my $check_comments,
"m|check-makefiles" => \my $check_makefiles,
"a|check-all" => \my $check_all,
"u|update-makefiles" => \my $update_makefiles,
"f|fixupind=s" => \my $fixupind,
"h|help" => \my $help
) or die_usage;
if ($fixupind) {
my $txt = read_file($fixupind);
$txt =~ s/^([^\n]*\n)/$1\n\\addcontentsline{toc}{chapter}{Index}\n/s;
write_file($fixupind, $txt);
exit 0;
}
my $failure;
$failure ||= check_source() if $check_all || $check_source;
$failure ||= check_defines() if $check_all || $check_defines;
$failure ||= check_descriptors() if $check_all || $check_descriptors;
$failure ||= check_comments() if $check_all || $check_comments;
$failure ||= process_makefiles(0) if $check_all || $check_makefiles;
$failure ||= process_makefiles(1) if $update_makefiles;
die_usage unless defined $failure;
exit $failure ? 1 : 0;