16 open(DUPOUT,">&STDOUT");
17 open(DUPERR,">&STDERR");
19 open(STDOUT,">Io.dup") || die "Can't open stdout";
20 open(STDERR,">&STDOUT") || die "Can't open stderr";
22 select(STDERR); $| = 1;
23 select(STDOUT); $| = 1;
25 print STDOUT "ok 2\n";
26 print STDERR "ok 3\n";
28 # Since some systems don't have echo, we use Perl.
29 $echo = qq{$^X -le "print q(ok %d)"};
31 $cmd = sprintf $echo, 4;
34 $cmd = sprintf "$echo 1>&2", 5;
35 $cmd = sprintf $echo, 5 if $^O eq 'MacOS'; # don't know if we can do this ...
38 # KNOWN BUG system() does not honor STDOUT redirections on VMS.
40 print "not ok $_ # TODO system() not honoring STDOUT redirect on VMS\n"
44 system sprintf $echo, 6;
46 system sprintf $echo, 7;
49 system sprintf "$echo 1>&2", 7;
53 close(STDOUT) or die "Could not close: $!";
54 close(STDERR) or die "Could not close: $!";
56 open(STDOUT,">&DUPOUT") or die "Could not open: $!";
57 open(STDERR,">&DUPERR") or die "Could not open: $!";
59 if (($^O eq 'MSWin32') || ($^O eq 'NetWare') || ($^O eq 'VMS')) { print `type Io.dup` }
60 elsif ($^O eq 'MacOS') { system 'catenate Io.dup' }
61 else { system 'cat Io.dup' }
64 print STDOUT "ok 8\n";
66 open(F,">&",1) or die "Cannot dup to numeric 1: $!";
70 open(F,">&",'1') or die "Cannot dup to string '1': $!";
74 open(F,">&=",1) or die "Cannot dup to numeric 1: $!";
78 if ($Config{useperlio}) {
79 open(F,">&=",'1') or die "Cannot dup to string '1': $!";
83 open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
89 open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
94 skip("need perlio", 14) unless $Config{useperlio};
96 ok(open(F, ">&", STDOUT));
97 isnt(fileno(F), fileno(STDOUT));
100 ok(open(F, "<&=STDIN")) or _diag $!;
101 is(fileno(F), fileno(STDIN));
104 ok(open(F, ">&=STDOUT"));
105 is(fileno(F), fileno(STDOUT));
108 ok(open(F, ">&=STDERR"));
109 is(fileno(F), fileno(STDERR));
112 open(G, ">dup$$") or die;
115 ok(open(F, ">&=$g"));
125 close G; # flush first
126 close F; # flush second
128 open(G, "<dup$$") or die;
131 $line = <G>; chomp $line; is($line, "ggg");
132 $line = <G>; chomp $line; is($line, "fff");
136 END { 1 while unlink "dup$$" }