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1 | package Shell; |
2 | |
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3 | use Config; |
4 | |
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5 | sub import { |
6 | my $self = shift; |
7 | my ($callpack, $callfile, $callline) = caller; |
8 | my @EXPORT; |
9 | if (@_) { |
10 | @EXPORT = @_; |
11 | } |
12 | else { |
13 | @EXPORT = 'AUTOLOAD'; |
14 | } |
15 | foreach $sym (@EXPORT) { |
16 | *{"${callpack}::$sym"} = \&{"Shell::$sym"}; |
17 | } |
18 | }; |
19 | |
20 | AUTOLOAD { |
21 | my $cmd = $AUTOLOAD; |
22 | $cmd =~ s/^.*:://; |
23 | eval qq { |
24 | sub $AUTOLOAD { |
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25 | if (\@_ < 1) { |
26 | `$cmd`; |
27 | } |
28 | elsif (\$Config{'archname'} eq 'os2') { |
29 | local(\*SAVEOUT, \*READ, \*WRITE); |
30 | |
31 | open SAVEOUT, '>&STDOUT' or die; |
32 | pipe READ, WRITE or die; |
33 | open STDOUT, '>&WRITE' or die; |
34 | close WRITE; |
35 | |
36 | my \$pid = system(1, \$cmd, \@_); |
37 | die "Can't execute $cmd: \$!\n" if \$pid < 0; |
38 | |
39 | open STDOUT, '>&SAVEOUT' or die; |
40 | close SAVEOUT; |
41 | |
42 | if (wantarray) { |
43 | my \@ret = <READ>; |
44 | close READ; |
45 | waitpid \$pid, 0; |
46 | \@ret; |
47 | } |
48 | else { |
49 | local(\$/) = undef; |
50 | my \$ret = <READ>; |
51 | close READ; |
52 | waitpid \$pid, 0; |
53 | \$ret; |
54 | } |
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55 | } |
56 | else { |
57 | open(SUBPROC, "-|") |
58 | or exec '$cmd', \@_ |
59 | or die "Can't exec $cmd: \$!\n"; |
60 | if (wantarray) { |
61 | my \@ret = <SUBPROC>; |
62 | close SUBPROC; # XXX Oughta use a destructor. |
63 | \@ret; |
64 | } |
65 | else { |
66 | local(\$/) = undef; |
67 | my \$ret = <SUBPROC>; |
68 | close SUBPROC; |
69 | \$ret; |
70 | } |
71 | } |
72 | } |
73 | }; |
74 | goto &$AUTOLOAD; |
75 | } |
76 | |
77 | 1; |