X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=nfc-card-dumper.pl;h=5397f06c5b0ecb99c5697ae4a8dfa85948de64f4;hb=117ad2e869b1f7ad6485e60dce85f691b301e081;hp=ffdecc960c2af39f5d65facd059e51848665372d;hpb=d1fb53c418af9be9c98f53f4bc77e760adfcf313;p=perl-Mifare-MAD.git

diff --git a/nfc-card-dumper.pl b/nfc-card-dumper.pl
index ffdecc9..5397f06 100755
--- a/nfc-card-dumper.pl
+++ b/nfc-card-dumper.pl
@@ -6,9 +6,18 @@ use RFID::Libnfc::Reader;
 use RFID::Libnfc::Constants;
 use File::Slurp;
 use Digest::MD5 qw(md5_hex);
+use Getopt::Long::Descriptive;
 
 use Data::Dump qw(dump);
 
+my ($opt,$usage) = describe_options(
+	'%c %c [dump_with_keys]',
+	[ 'write=s',	'write dump to card' ],
+	[ 'debug|d',	'show debug dumps' ],
+	[ 'help|h',		'usage' ],
+);
+print $usage->text, exit if $opt->help;
+
 my $debug = $ENV{DEBUG} || 0;
 my $keyfile = shift @ARGV;
 
@@ -39,7 +48,7 @@ if ($r->init()) {
 
 	my $card;
 
-	print STDERR "$uid reading blocks ";
+	print STDERR "reading $uid blocks ";
     for (my $i = 0; $i < $tag->blocks; $i++) {
         if (my $data = $tag->read_block($i)) {
             # if we are dumping an ultralight token, 
@@ -87,7 +96,7 @@ if ($r->init()) {
 	}
 
 	my $md5 = md5_hex($card);
-	my $out_file = "cards/$uid.$md5";
+	my $out_file = "cards/$uid.$md5.mfd";
 	if ( -e $out_file ) {
 		warn "$out_file allready exists, not overwriting\n";
 	} else {
@@ -100,8 +109,21 @@ if ($r->init()) {
 		}
 	}
 
-	# view dump
-	system "./mifare-mad.pl $out_file > $out_file.txt";
-	$ENV{MAD} && system "vi $out_file.txt";
+	if ( $opt->write ) {
+		my $card = read_file $opt->write;
+		print STDERR "writing $uid block ";
+		foreach my $block ( 0 .. $tag->blocks ) {
+			my $offset = 0x10 * $block;
+			$tag->write_block( $block, substr($card,$offset,0x10) );
+			print STDERR "$block ";
+		}
+		print STDERR "done\n";
+	} else {
+		# view dump
+		my $txt_file = $out_file;
+		$txt_file =~ s/\.mfd/.txt/ || die "can't change extension to txt";
+		system "./mifare-mad.pl $out_file > $txt_file";
+		$ENV{MAD} && system "vi $txt_file";
+	}
 }