103 |
|
|
104 |
my @tags; |
my @tags; |
105 |
push @tags, substr($tags, $_ * 8, 8) foreach ( 0 .. $nr - 1 ); |
push @tags, substr($tags, $_ * 8, 8) foreach ( 0 .. $nr - 1 ); |
106 |
warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ); |
warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; |
107 |
print "seen $nr tags: ", join(',', map { unpack('H16', $_) } @tags ) , "\n"; |
print "seen $nr tags: ", join(',', map { unpack('H16', $_) } @tags ) , "\n"; |
108 |
} |
} |
109 |
) } |
) } |
161 |
foreach my $str ( @_ ) { |
foreach my $str ( @_ ) { |
162 |
my $hex = unpack( 'H*', $str ); |
my $hex = unpack( 'H*', $str ); |
163 |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
164 |
|
$hex =~ s/\s+$//; |
165 |
push @out, $hex; |
push @out, $hex; |
166 |
} |
} |
167 |
return join(' ', @out); |
return join(' | ', @out); |
168 |
} |
} |
169 |
|
|
170 |
sub read_bytes { |
sub read_bytes { |
219 |
} |
} |
220 |
} |
} |
221 |
|
|
222 |
|
# my $checksum = checksum( $bytes ); |
223 |
|
# my $checksum = checksum( $bytes, $original_checksum ); |
224 |
|
sub checksum { |
225 |
|
my ( $bytes, $checksum ) = @_; |
226 |
|
|
227 |
|
my $xor = $checksum; # FIXME |
228 |
|
|
229 |
|
if ( defined $checksum && $xor ne $checksum ) { |
230 |
|
print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; |
231 |
|
} |
232 |
|
} |
233 |
|
|
234 |
sub readchunk { |
sub readchunk { |
235 |
my ( $parser ) = @_; |
my ( $parser ) = @_; |
236 |
|
|
241 |
my $length = read_bytes( 1, 'length' ); |
my $length = read_bytes( 1, 'length' ); |
242 |
my $len = ord($length); |
my $len = ord($length); |
243 |
my $data = read_bytes( $len, 'data' ); |
my $data = read_bytes( $len, 'data' ); |
|
my ( $cmd ) = unpack('C', $data ); |
|
244 |
|
|
245 |
my $payload = substr( $data, 0, -2 ); |
my $payload = substr( $data, 0, -2 ); |
246 |
my $payload_len = length($data); |
my $payload_len = length($data); |
247 |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
248 |
|
|
249 |
my $checksum = substr( $data, -2, 2 ); |
my $checksum = substr( $data, -2, 2 ); |
250 |
# FIXME check checksum |
checksum( $header . $length . $payload, $checksum ); |
251 |
|
|
252 |
print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), "checksum: ", as_hex( $checksum ),"\n"; |
print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n"; |
253 |
|
|
254 |
$assert->{len} = $len; |
$assert->{len} = $len; |
255 |
$assert->{payload} = $payload; |
$assert->{payload} = $payload; |
|
$assert->{checksum} = $checksum; |
|
256 |
|
|
257 |
$parser->( $len, $payload, $checksum ) if $parser && ref($parser) eq 'CODE'; |
$parser->( $len, $payload ) if $parser && ref($parser) eq 'CODE'; |
258 |
|
|
259 |
return $data; |
return $data; |
260 |
} |
} |