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package Protocol::DBus::Marshal; |
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3
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6
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111416
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use strict; |
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16
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6
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128
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use warnings; |
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119
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6
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6
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2011
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use Protocol::DBus::Pack (); |
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29
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6
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102
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7
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6
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2016
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use Protocol::DBus::Signature (); |
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6
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10199
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9
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our $_ENDIAN_PACK; |
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# Set this to get actual Perl filehandles in the |
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# message body. XXX FIXME This is a very hacky way to do it! |
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our $FILEHANDLES; |
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# XXX FIXME Hackety-hack … |
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our $PRESERVE_VARIANT_SIGNATURES; |
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# for testing |
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our $DICT_CANONICAL; |
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our @_MARSHAL_FDS; |
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# sig, data (array ref) |
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sub marshal_le { |
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32
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32
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0
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12720
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local $_ENDIAN_PACK = '<'; |
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32
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56
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local @_MARSHAL_FDS; |
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32
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74
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return( _marshal(@_[0, 1]), \@_MARSHAL_FDS ); |
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} |
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30
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# buf, buf offset, sig |
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sub unmarshal_le { |
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33
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33
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0
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46760
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local $_ENDIAN_PACK = '<'; |
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107
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return _unmarshal(@_); |
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} |
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36
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sub marshal_be { |
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0
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0
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0
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0
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local $_ENDIAN_PACK = '>'; |
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0
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0
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local @_MARSHAL_FDS; |
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0
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0
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return( _marshal(@_[0, 1]), \@_MARSHAL_FDS ); |
40
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} |
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42
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sub unmarshal_be { |
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0
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0
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0
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0
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local $_ENDIAN_PACK = '>'; |
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0
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0
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return _unmarshal(@_); |
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} |
46
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47
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#---------------------------------------------------------------------- |
48
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49
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sub _marshal { |
50
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166
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166
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334
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my ($sig, $data, $buf_sr, $_data_are_not_list) = @_; |
51
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52
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166
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100
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260
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$buf_sr ||= \do { my $v = q<> }; |
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107
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53
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54
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166
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249
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my @scts = Protocol::DBus::Signature::split($sig); |
55
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56
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166
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300
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for my $si ( 0 .. $#scts ) { |
57
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213
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244
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my $sct = $scts[$si]; |
58
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59
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213
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100
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271
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my $datum = $_data_are_not_list ? $data : $data->[$si]; |
60
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61
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213
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50
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290
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if (!defined $datum) { |
62
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0
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0
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die "Undefined datum (SCT=“$sct”)!"; |
63
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} |
64
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65
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# Arrays |
66
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213
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100
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412
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if (index($sct, 'a') == 0) { |
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100
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100
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67
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9
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21
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_marshal_array( $sct, $datum, $buf_sr); |
68
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} |
69
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70
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# Structs are given as arrays. |
71
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elsif (index($sct, '(') == 0) { |
72
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11
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23
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Protocol::DBus::Pack::align_str($$buf_sr, 8); |
73
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74
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11
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18
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my $struct_sig = substr($sig, 1, -1); |
75
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76
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11
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19
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_marshal( $struct_sig, $datum, $buf_sr ); |
77
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} |
78
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79
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# Variants are given as two-member arrays. |
80
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elsif ($sct eq 'v') { |
81
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33
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93
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_marshal( g => $datum->[0], $buf_sr, 1 ); |
82
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33
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52
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_marshal( $datum->[0], $datum->[1], $buf_sr, 1 ); |
83
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} |
84
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85
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# Anything else is a basic type. |
86
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else { |
87
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160
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100
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296
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if ($sct eq 'h') { |
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100
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100
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88
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3
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6
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my $fd = fileno($datum); |
89
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3
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50
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7
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die "fileno($datum) returned undef!" if !defined $fd; |
90
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91
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3
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7
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my ($idx) = grep { $_MARSHAL_FDS[$_] == $fd } 0 .. $#_MARSHAL_FDS; |
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3
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7
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92
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93
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3
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100
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6
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if (!defined $idx) { |
94
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2
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3
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$idx = @_MARSHAL_FDS; |
95
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2
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4
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push @_MARSHAL_FDS, $fd; |
96
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} |
97
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98
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3
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4
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$datum = $idx; |
99
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} |
100
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elsif ($sct eq 'o') { |
101
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9
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50
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83
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$datum =~ m<\A/(?:[A-Za-z0-9_]+(?:/[A-Za-z0-9_]+)*)?\z> or do { |
102
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0
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0
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die "Invalid object path: “$datum”"; |
103
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}; |
104
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} |
105
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elsif ($sct eq 's') { |
106
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30
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64
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utf8::encode($datum); |
107
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} |
108
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109
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160
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380
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Protocol::DBus::Pack::align_str($$buf_sr, Protocol::DBus::Pack::ALIGNMENT()->{$sct}); |
110
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111
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160
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210
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my ($pack) = _get_pack_template($sct); |
112
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113
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160
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236
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$pack = "($pack)$_ENDIAN_PACK"; |
114
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160
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436
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$$buf_sr .= pack( $pack, $datum ); |
115
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} |
116
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} |
117
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118
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166
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287
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return $buf_sr; |
119
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} |
120
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121
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sub _marshal_array { |
122
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9
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9
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21
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my ($sct, $data, $buf_sr) = @_; |
123
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124
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9
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22
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Protocol::DBus::Pack::align_str($$buf_sr, 4); |
125
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126
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# We’ll fill this in with the length below. |
127
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9
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18
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$$buf_sr .= "\0\0\0\0"; |
128
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129
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9
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15
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my $array_start = length $$buf_sr; |
130
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131
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# Per the spec, array lengths do NOT include alignment bytes |
132
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# after the length. This only affects 8-byte-aligned types. |
133
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9
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10
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my $compensate_align8; |
134
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135
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9
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16
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substr($sct, 0, 1, q<>); # chop off the leading “a” |
136
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137
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9
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100
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29
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if ($array_start % 8) { |
138
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3
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7
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$compensate_align8 = (0 == index($sct, '(')); |
139
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3
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100
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10
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$compensate_align8 ||= (0 == index($sct, '{')); |
140
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3
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50
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11
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$compensate_align8 ||= ((Protocol::DBus::Pack::ALIGNMENT()->{$sct} || 0) == 8); |
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66
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141
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} |
142
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143
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# DICT_ENTRY arrays are given as plain Perl hashes |
144
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9
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100
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29
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if (0 == index($sct, '{')) { |
145
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6
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15
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my $key_sig = substr($sct, 1, 1); |
146
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6
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17
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my $value_sig = substr($sct, 2, -1); |
147
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148
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6
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100
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39
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for my $key ( $DICT_CANONICAL ? (sort keys %$data) : keys %$data ) { |
149
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24
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52
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Protocol::DBus::Pack::align_str($$buf_sr, 8); |
150
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24
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65
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_marshal($key_sig, $key, $buf_sr, 1); |
151
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24
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39
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_marshal( $value_sig, $data->{$key}, $buf_sr, 1); |
152
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} |
153
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} |
154
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155
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# Any other array is given as an array. |
156
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else { |
157
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3
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8
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for my $item ( @$data ) { |
158
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9
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29
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_marshal($sct, $item, $buf_sr, 1); |
159
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} |
160
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} |
161
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162
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9
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20
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my $array_len = length($$buf_sr) - $array_start; |
163
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9
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100
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22
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$array_len -= 4 if $compensate_align8; |
164
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165
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9
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42
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substr( $$buf_sr, $array_start - 4, 4, pack("L$_ENDIAN_PACK", $array_len) ); |
166
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} |
167
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168
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#---------------------------------------------------------------------- |
169
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170
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sub _unmarshal { |
171
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69
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69
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111
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my ($buf_sr, $buf_offset, $sig) = @_; |
172
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173
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69
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86
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my @items; |
174
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175
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69
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77
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my $buf_start = $buf_offset; |
176
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69
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82
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my $sig_offset = 0; |
177
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178
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69
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152
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while ($sig_offset < length($sig)) { |
179
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233
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424
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my $next_sct_len = Protocol::DBus::Signature::get_sct_length($sig, $sig_offset); |
180
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181
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233
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471
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my ($item, $item_length) = _unmarshal_sct( |
182
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$buf_sr, |
183
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$buf_offset, |
184
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substr( $sig, $sig_offset, $next_sct_len ), |
185
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); |
186
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187
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233
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421
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push @items, $item; |
188
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189
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233
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263
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$buf_offset += $item_length; |
190
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233
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354
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$sig_offset += $next_sct_len; |
191
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} |
192
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193
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69
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208
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return (\@items, $buf_offset - $buf_start); |
194
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} |
195
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196
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sub unmarshal_sct_le { |
197
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0
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0
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0
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0
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return _unmarshal_sct(@_); |
198
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} |
199
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200
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sub unmarshal_sct_be { |
201
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0
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0
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0
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0
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return _unmarshal_sct(@_); |
202
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} |
203
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204
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# SCT = “single complete type”. |
205
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# Returns the value plus its marshaled length. |
206
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sub _unmarshal_sct { |
207
|
1715
|
|
|
1715
|
|
2116
|
my ($buf_sr, $buf_offset, $sct_sig) = @_; |
208
|
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|
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209
|
1715
|
|
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|
|
1672
|
my $buf_start = $buf_offset; |
210
|
|
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|
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|
211
|
1715
|
100
|
|
|
|
3305
|
if (substr($sct_sig, 0, 1) eq 'a') { |
|
|
100
|
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|
|
100
|
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|
212
|
110
|
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|
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232
|
Protocol::DBus::Pack::align($buf_offset, 4); |
213
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|
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|
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214
|
110
|
|
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|
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232
|
my $array_len = unpack "\@$buf_offset L$_ENDIAN_PACK", $$buf_sr; |
215
|
110
|
|
|
|
|
130
|
$buf_offset += 4; #uint32 length |
216
|
|
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|
217
|
110
|
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101
|
my $obj; |
218
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|
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219
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|
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|
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# We parse arrays of DICT_ENTRY into a hash. |
220
|
110
|
100
|
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|
172
|
if (substr($sct_sig, 1, 1) eq '{') { |
221
|
|
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222
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# The key is always a basic type, so just one letter. |
223
|
46
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56
|
my $key_type = substr($sct_sig, 2, 1); |
224
|
|
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|
225
|
|
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|
|
# The value can be any SCT. |
226
|
46
|
|
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|
|
70
|
my $value_type = substr( $sct_sig, 3, Protocol::DBus::Signature::get_sct_length($sct_sig, 3) ); |
227
|
|
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228
|
|
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|
|
# Do this here rather than in |
229
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|
|
# _unmarshal_to_hashref() to avoid |
230
|
|
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|
|
# the creation of an intermediate length. |
231
|
46
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83
|
Protocol::DBus::Pack::align($buf_offset, 8); |
232
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|
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233
|
46
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|
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67
|
$obj = _unmarshal_to_hashref($buf_sr, $buf_offset, $array_len, $key_type, $value_type); |
234
|
46
|
|
|
|
|
58
|
$buf_offset += $array_len; |
235
|
|
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|
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|
|
} |
236
|
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237
|
|
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|
|
# Anything else we parse normally. |
238
|
|
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|
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|
|
else { |
239
|
64
|
|
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|
|
108
|
my $array_sig = substr( $sct_sig, 1, Protocol::DBus::Signature::get_sct_length($sct_sig, 1) ); |
240
|
|
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|
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|
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241
|
64
|
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68
|
my @array_items; |
242
|
64
|
|
|
|
|
103
|
$obj = bless \@array_items, 'Protocol::DBus::Type::Array'; |
243
|
|
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|
|
244
|
|
|
|
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|
|
# If the array contents are 8-byte-aligned, then the array will |
245
|
|
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|
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|
|
# actually be 4 bytes longer than this. But it doesn’t appear we |
246
|
|
|
|
|
|
|
# need to care about that since _unmarshal_sct() accounts for that. |
247
|
64
|
|
|
|
|
73
|
my $array_end = $buf_offset + $array_len; |
248
|
|
|
|
|
|
|
|
249
|
64
|
|
|
|
|
93
|
while ($buf_offset < $array_end) { |
250
|
838
|
|
|
|
|
977
|
my ($item, $item_length) = _unmarshal_sct($buf_sr, $buf_offset, $array_sig); |
251
|
|
|
|
|
|
|
|
252
|
838
|
|
|
|
|
827
|
$buf_offset += $item_length; |
253
|
|
|
|
|
|
|
|
254
|
838
|
|
|
|
|
1248
|
push @array_items, $item; |
255
|
|
|
|
|
|
|
} |
256
|
|
|
|
|
|
|
} |
257
|
|
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|
|
258
|
110
|
|
|
|
|
178
|
return ($obj, $buf_offset - $buf_start); |
259
|
|
|
|
|
|
|
} |
260
|
|
|
|
|
|
|
elsif (substr($sct_sig, 0, 1) eq '(') { |
261
|
36
|
|
|
|
|
54
|
return _unmarshal_struct(@_); |
262
|
|
|
|
|
|
|
} |
263
|
|
|
|
|
|
|
elsif (substr($sct_sig, 0, 1) eq 'v') { |
264
|
165
|
|
|
|
|
283
|
return _unmarshal_variant(@_); |
265
|
|
|
|
|
|
|
} |
266
|
|
|
|
|
|
|
|
267
|
1404
|
|
|
|
|
1729
|
my ($pack_tmpl, $is_string) = _get_pack_template($sct_sig); |
268
|
|
|
|
|
|
|
|
269
|
1404
|
|
|
|
|
2575
|
Protocol::DBus::Pack::align($buf_offset, Protocol::DBus::Pack::ALIGNMENT()->{$sct_sig}); |
270
|
|
|
|
|
|
|
|
271
|
1404
|
|
|
|
|
2729
|
my $val = unpack("\@$buf_offset ($pack_tmpl)$_ENDIAN_PACK", $$buf_sr); |
272
|
|
|
|
|
|
|
|
273
|
1404
|
|
|
|
|
1407
|
my $strlen; |
274
|
|
|
|
|
|
|
|
275
|
1404
|
50
|
33
|
|
|
2422
|
if ($FILEHANDLES && $sct_sig eq 'h') { |
|
|
100
|
|
|
|
|
|
276
|
0
|
|
0
|
|
|
0
|
$val = $FILEHANDLES->[$val] || do { |
277
|
|
|
|
|
|
|
warn "UNIX_FD ($val) received that doesn’t refer to a received file descriptor!\n"; |
278
|
|
|
|
|
|
|
$val; |
279
|
|
|
|
|
|
|
}; |
280
|
|
|
|
|
|
|
} |
281
|
|
|
|
|
|
|
elsif ($is_string) { |
282
|
372
|
|
|
|
|
418
|
$strlen = length $val; |
283
|
372
|
|
|
|
|
502
|
utf8::decode($val); |
284
|
|
|
|
|
|
|
} |
285
|
|
|
|
|
|
|
|
286
|
1404
|
100
|
|
|
|
3166
|
return ($val, $buf_offset - $buf_start + Protocol::DBus::Pack::WIDTH()->{$sct_sig} + ($is_string ? $strlen : 0)); |
287
|
|
|
|
|
|
|
} |
288
|
|
|
|
|
|
|
|
289
|
|
|
|
|
|
|
sub _unmarshal_variant { |
290
|
165
|
|
|
165
|
|
191
|
my ($buf_sr, $buf_offset) = @_; |
291
|
|
|
|
|
|
|
|
292
|
165
|
|
|
|
|
164
|
my $buf_start = $buf_offset; |
293
|
|
|
|
|
|
|
|
294
|
165
|
|
|
|
|
210
|
my ($sig, $len) = _unmarshal_sct( $buf_sr, $buf_offset, 'g' ); |
295
|
|
|
|
|
|
|
|
296
|
165
|
50
|
|
|
|
242
|
die sprintf("No sig ($len bytes?) from “%s”?", substr($$buf_sr, $buf_offset)) if !length $sig; |
297
|
|
|
|
|
|
|
|
298
|
165
|
|
|
|
|
196
|
$buf_offset += $len; |
299
|
|
|
|
|
|
|
|
300
|
165
|
|
|
|
|
293
|
(my $val, $len) = _unmarshal_sct( $buf_sr, $buf_offset, $sig ); |
301
|
|
|
|
|
|
|
|
302
|
|
|
|
|
|
|
return( |
303
|
165
|
50
|
|
|
|
360
|
$PRESERVE_VARIANT_SIGNATURES ? bless( [ $sig => $val ], 'Protocol::DBus::Type::Variant' ) : $val, |
304
|
|
|
|
|
|
|
$len + $buf_offset - $buf_start, |
305
|
|
|
|
|
|
|
); |
306
|
|
|
|
|
|
|
} |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
sub _get_pack_template { |
309
|
1564
|
|
|
1564
|
|
1690
|
my ($sct_sig) = @_; |
310
|
|
|
|
|
|
|
|
311
|
1564
|
|
|
|
|
1524
|
my ($is_string, $pack_tmpl); |
312
|
1564
|
100
|
|
|
|
2039
|
if ( $pack_tmpl = Protocol::DBus::Pack::STRING()->{$sct_sig} ) { |
313
|
448
|
|
|
|
|
506
|
$is_string = 1; |
314
|
|
|
|
|
|
|
} |
315
|
|
|
|
|
|
|
else { |
316
|
1116
|
50
|
|
|
|
1561
|
$pack_tmpl = Protocol::DBus::Pack::NUMERIC()->{$sct_sig} or do { |
317
|
0
|
|
|
|
|
0
|
die "No basic type template for type “$sct_sig”!"; |
318
|
|
|
|
|
|
|
}; |
319
|
|
|
|
|
|
|
|
320
|
1116
|
|
|
|
|
1319
|
if (!Protocol::DBus::Pack::CAN_64()) { |
321
|
|
|
|
|
|
|
if ($pack_tmpl eq 'q') { |
322
|
|
|
|
|
|
|
$pack_tmpl = ( $_ENDIAN_PACK eq '>' ) ? 'x4 l' : 'l x4'; |
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
elsif ($pack_tmpl eq 'Q') { |
325
|
|
|
|
|
|
|
$pack_tmpl = ( $_ENDIAN_PACK eq '>' ) ? 'x4 L' : 'L x4'; |
326
|
|
|
|
|
|
|
} |
327
|
|
|
|
|
|
|
} |
328
|
|
|
|
|
|
|
} |
329
|
|
|
|
|
|
|
|
330
|
1564
|
|
|
|
|
2134
|
return ($pack_tmpl, $is_string); |
331
|
|
|
|
|
|
|
} |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
sub _unmarshal_to_hashref { |
334
|
46
|
|
|
46
|
|
138
|
my ($buf_sr, $buf_offset, $array_len, $key_type, $value_type) = @_; |
335
|
|
|
|
|
|
|
|
336
|
46
|
|
|
|
|
46
|
my %items; |
337
|
46
|
|
|
|
|
90
|
my $obj = bless \%items, 'Protocol::DBus::Type::Dict'; |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
# NB: We already align()ed this. |
340
|
|
|
|
|
|
|
|
341
|
46
|
|
|
|
|
56
|
my $end_offset = $buf_offset + $array_len; |
342
|
|
|
|
|
|
|
|
343
|
46
|
|
|
|
|
70
|
while ($buf_offset < $end_offset) { |
344
|
157
|
|
|
|
|
274
|
Protocol::DBus::Pack::align($buf_offset, 8); |
345
|
|
|
|
|
|
|
|
346
|
157
|
|
|
|
|
228
|
my ($key, $len_in_buf) = _unmarshal_sct($buf_sr, $buf_offset, $key_type); |
347
|
|
|
|
|
|
|
|
348
|
157
|
|
|
|
|
180
|
$buf_offset += $len_in_buf; |
349
|
|
|
|
|
|
|
|
350
|
157
|
|
|
|
|
216
|
(my $val, $len_in_buf) = _unmarshal_sct($buf_sr, $buf_offset, $value_type); |
351
|
|
|
|
|
|
|
|
352
|
157
|
|
|
|
|
169
|
$buf_offset += $len_in_buf; |
353
|
|
|
|
|
|
|
|
354
|
157
|
|
|
|
|
336
|
$items{$key} = $val; |
355
|
|
|
|
|
|
|
} |
356
|
|
|
|
|
|
|
|
357
|
|
|
|
|
|
|
# We don’t need to return the length. |
358
|
46
|
|
|
|
|
75
|
return $obj; |
359
|
|
|
|
|
|
|
} |
360
|
|
|
|
|
|
|
|
361
|
|
|
|
|
|
|
sub _unmarshal_struct { |
362
|
36
|
|
|
36
|
|
53
|
my ($buf_sr, $buf_offset, $sct_sig) = @_; |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
# Remove “()” and just parse as a series of types. |
365
|
36
|
|
|
|
|
46
|
chop $sct_sig; |
366
|
36
|
|
|
|
|
49
|
substr( $sct_sig, 0, 1, q<> ); |
367
|
|
|
|
|
|
|
|
368
|
36
|
|
|
|
|
35
|
my $buf_start = $buf_offset; |
369
|
|
|
|
|
|
|
|
370
|
36
|
|
|
|
|
62
|
Protocol::DBus::Pack::align($buf_offset, 8); |
371
|
|
|
|
|
|
|
|
372
|
36
|
|
|
|
|
73
|
my ($items_ar, $len) = _unmarshal($buf_sr, $buf_offset, $sct_sig); |
373
|
36
|
|
|
|
|
61
|
bless $items_ar, 'Protocol::DBus::Type::Struct'; |
374
|
|
|
|
|
|
|
|
375
|
36
|
|
|
|
|
71
|
return ($items_ar, ($buf_offset - $buf_start) + $len); |
376
|
|
|
|
|
|
|
} |
377
|
|
|
|
|
|
|
|
378
|
|
|
|
|
|
|
sub _buffer_length_satisfies_signature { |
379
|
0
|
|
|
0
|
|
|
my ($buf, $buf_offset, $sig) = @_; |
380
|
|
|
|
|
|
|
|
381
|
0
|
|
|
|
|
|
my $sig_offset = 0; |
382
|
|
|
|
|
|
|
|
383
|
0
|
|
|
|
|
|
while ($buf_offset <= length($buf)) { |
384
|
|
|
|
|
|
|
|
385
|
|
|
|
|
|
|
# We’re good if this passes because it means the buffer is longer |
386
|
|
|
|
|
|
|
# than the passed-in signature needs it to be. |
387
|
0
|
0
|
|
|
|
|
return (1, $buf_offset) if $sig_offset == length($sig); |
388
|
|
|
|
|
|
|
|
389
|
0
|
|
|
|
|
|
my $sct_length = Protocol::DBus::Signature::get_sct_length($sig, $sig_offset); |
390
|
|
|
|
|
|
|
|
391
|
0
|
|
|
|
|
|
my $next_sct = substr( |
392
|
|
|
|
|
|
|
$sig, |
393
|
|
|
|
|
|
|
$sig_offset, |
394
|
|
|
|
|
|
|
$sct_length, |
395
|
|
|
|
|
|
|
); |
396
|
|
|
|
|
|
|
|
397
|
0
|
|
|
|
|
|
$sig_offset += $sct_length; |
398
|
|
|
|
|
|
|
|
399
|
0
|
0
|
|
|
|
|
if ($next_sct eq 'v') { |
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
400
|
0
|
|
|
|
|
|
my ($variant_sig, $len) = _unmarshal_sct($buf, $buf_offset, 'g'); |
401
|
0
|
|
|
|
|
|
$buf_offset += $len; |
402
|
|
|
|
|
|
|
|
403
|
|
|
|
|
|
|
# This has to recurse and preserve the offset. |
404
|
0
|
|
|
|
|
|
my ($ok, $new_offset) = _buffer_length_satisfies_signature( $buf, $buf_offset, $variant_sig ); |
405
|
0
|
0
|
|
|
|
|
return 0 if !$ok; |
406
|
0
|
|
|
|
|
|
$buf_offset = $new_offset; |
407
|
|
|
|
|
|
|
} |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
# signatures |
410
|
|
|
|
|
|
|
elsif ($next_sct eq 'g') { |
411
|
|
|
|
|
|
|
# 2 for the length byte and the trailing NUL |
412
|
0
|
|
|
|
|
|
$buf_offset += 2 + unpack( "\@$buf_offset C", $buf ) |
413
|
|
|
|
|
|
|
} |
414
|
|
|
|
|
|
|
|
415
|
|
|
|
|
|
|
# strings and object paths |
416
|
|
|
|
|
|
|
elsif ( Protocol::DBus::Pack::STRING()->{$next_sct} ) { |
417
|
0
|
|
|
|
|
|
_add_uint32_variant_length(\$buf, \$buf_offset); |
418
|
0
|
|
|
|
|
|
$buf_offset++; #trailing NUL |
419
|
|
|
|
|
|
|
} |
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
# numerics |
422
|
|
|
|
|
|
|
elsif ( my $width = Protocol::DBus::Pack::WIDTH()->{$next_sct} ) { |
423
|
0
|
|
|
|
|
|
$buf_offset += $width; |
424
|
|
|
|
|
|
|
} |
425
|
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
else { |
427
|
0
|
|
|
|
|
|
my $char0 = substr($next_sct, 0, 1); |
428
|
|
|
|
|
|
|
|
429
|
0
|
0
|
|
|
|
|
if ($char0 eq 'a') { |
|
|
0
|
|
|
|
|
|
430
|
0
|
|
|
|
|
|
_add_uint32_variant_length(\$buf, \$buf_offset); |
431
|
|
|
|
|
|
|
} |
432
|
|
|
|
|
|
|
elsif ($char0 eq '(') { |
433
|
0
|
|
|
|
|
|
Protocol::DBus::Pack::align( $buf_offset, 8 ); |
434
|
|
|
|
|
|
|
|
435
|
0
|
|
|
|
|
|
my ($ok, $new_offset) = _buffer_length_satisfies_signature( $buf, $buf_offset, substr($next_sct, 1, -1) ); |
436
|
0
|
0
|
|
|
|
|
return 0 if !$ok; |
437
|
0
|
|
|
|
|
|
$buf_offset = $new_offset; |
438
|
|
|
|
|
|
|
} |
439
|
|
|
|
|
|
|
else { |
440
|
0
|
|
|
|
|
|
die "unrecognized SCT: “$next_sct”"; |
441
|
|
|
|
|
|
|
} |
442
|
|
|
|
|
|
|
} |
443
|
|
|
|
|
|
|
} |
444
|
|
|
|
|
|
|
|
445
|
0
|
|
|
|
|
|
return 0; |
446
|
|
|
|
|
|
|
} |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
sub _add_uint32_variant_length { |
449
|
0
|
|
|
0
|
|
|
my ($buf_sr, $buf_offset_sr) = @_; |
450
|
6
|
|
|
6
|
|
1982
|
use Data::Dumper; |
|
6
|
|
|
|
|
20453
|
|
|
6
|
|
|
|
|
762
|
|
451
|
0
|
|
|
|
|
|
$Data::Dumper::Useqq = 1; |
452
|
0
|
|
|
|
|
|
print STDERR Dumper @_; |
453
|
|
|
|
|
|
|
|
454
|
0
|
|
|
|
|
|
Protocol::DBus::Pack::align( $$buf_offset_sr, 4 ); |
455
|
|
|
|
|
|
|
|
456
|
0
|
0
|
|
|
|
|
my $array_len = unpack( |
457
|
|
|
|
|
|
|
"\@$$buf_offset_sr " . ($_ENDIAN_PACK eq '<' ? 'V' : 'N'), |
458
|
|
|
|
|
|
|
$$buf_sr, |
459
|
|
|
|
|
|
|
); |
460
|
|
|
|
|
|
|
|
461
|
0
|
|
|
|
|
|
$$buf_offset_sr += 4; |
462
|
0
|
|
|
|
|
|
$$buf_offset_sr += $array_len; |
463
|
|
|
|
|
|
|
|
464
|
0
|
|
|
|
|
|
return; |
465
|
|
|
|
|
|
|
} |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
1; |