1#!./perl
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = qw(. ../lib);
6    require "./test.pl";
7}
8
9use Config;
10
11my $test = 1;
12print "1..26\n";
13print "ok 1\n";
14
15open(DUPOUT,">&STDOUT");
16open(DUPERR,">&STDERR");
17
18open(STDOUT,">Io.dup")  || die "Can't open stdout";
19open(STDERR,">&STDOUT") || die "Can't open stderr";
20
21select(STDERR); $| = 1;
22select(STDOUT); $| = 1;
23
24print STDOUT "ok 2\n";
25print STDERR "ok 3\n";
26
27# Since some systems don't have echo, we use Perl.
28$echo = qq{$^X -le "print q(ok %d)"};
29
30$cmd = sprintf $echo, 4;
31print `$cmd`;
32
33$cmd = sprintf "$echo 1>&2", 5;
34$cmd = sprintf $echo, 5 if $^O eq 'MacOS';  # don't know if we can do this ...
35print `$cmd`;
36
37# KNOWN BUG system() does not honor STDOUT redirections on VMS.
38if( $^O eq 'VMS' ) {
39    print "not ok $_ # TODO system() not honoring STDOUT redirect on VMS\n"
40      for 6..7;
41}
42else {
43    system sprintf $echo, 6;
44    if ($^O eq 'MacOS') {
45        system sprintf $echo, 7;
46    }
47    else {
48        system sprintf "$echo 1>&2", 7;
49    }
50}
51
52close(STDOUT) or die "Could not close: $!";
53close(STDERR) or die "Could not close: $!";
54
55open(STDOUT,">&DUPOUT") or die "Could not open: $!";
56open(STDERR,">&DUPERR") or die "Could not open: $!";
57
58if (($^O eq 'MSWin32') || ($^O eq 'NetWare') || ($^O eq 'VMS')) { print `type Io.dup` }
59elsif ($^O eq 'MacOS') { system 'catenate Io.dup' }
60else                   { system 'cat Io.dup' }
61unlink 'Io.dup';
62
63print STDOUT "ok 8\n";
64
65open(F,">&",1) or die "Cannot dup to numeric 1: $!";
66print F "ok 9\n";
67close(F);
68
69open(F,">&",'1') or die "Cannot dup to string '1': $!";
70print F "ok 10\n";
71close(F);
72
73open(F,">&=",1) or die "Cannot dup to numeric 1: $!";
74print F "ok 11\n";
75close(F);
76
77if ($Config{useperlio}) {
78    open(F,">&=",'1') or die "Cannot dup to string '1': $!";
79    print F "ok 12\n";
80    close(F);
81} else {
82    open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
83    print F "ok 12\n";
84    close(F);
85}
86
87# To get STDOUT back.
88open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
89
90curr_test(13);
91
92SKIP: {
93    skip("need perlio", 14) unless $Config{useperlio};
94    
95    ok(open(F, ">&", STDOUT));
96    isnt(fileno(F), fileno(STDOUT));
97    close F;
98
99    ok(open(F, "<&=STDIN"));
100    is(fileno(F), fileno(STDIN));
101    close F;
102
103    ok(open(F, ">&=STDOUT"));
104    is(fileno(F), fileno(STDOUT));
105    close F;
106
107    ok(open(F, ">&=STDERR"));
108    is(fileno(F), fileno(STDERR));
109    close F;
110
111    open(G, ">dup$$") or die;
112    my $g = fileno(G);
113
114    ok(open(F, ">&=$g"));
115    is(fileno(F), $g);
116    close F;
117
118    ok(open(F, ">&=G"));
119    is(fileno(F), $g);
120
121    print G "ggg\n";
122    print F "fff\n";
123
124    close G; # flush first
125    close F; # flush second
126
127    open(G, "<dup$$") or die;
128    {
129	my $line;
130	$line = <G>; chomp $line; is($line, "ggg");
131	$line = <G>; chomp $line; is($line, "fff");
132    }
133    close G;
134
135    END { 1 while unlink "dup$$" }
136}
137