#!./perl
-# $RCSfile: dup.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:27 $
+BEGIN {
+ chdir 't' if -d 't';
+ @INC = qw(. ../lib);
+ require "./test.pl";
+}
-print "1..8\n";
+use Config;
+no warnings 'once';
+my $test = 1;
+print "1..26\n";
print "ok 1\n";
-open(dupout,">&STDOUT");
-open(duperr,">&STDERR");
+open(DUPOUT,">&STDOUT");
+open(DUPERR,">&STDERR");
-open(STDOUT,">Io.dup") || die "Can't open stdout";
+open(STDOUT,">Io.dup") || die "Can't open stdout";
open(STDERR,">&STDOUT") || die "Can't open stderr";
select(STDERR); $| = 1;
print STDOUT "ok 2\n";
print STDERR "ok 3\n";
- print `echo ok 4`;
- print `echo ok 5 1>&2`; # does this work?
- system 'echo ok 6';
- system 'echo ok 7 1>&2';
-close(STDOUT);
-close(STDERR);
+# Since some systems don't have echo, we use Perl.
+$echo = qq{$^X -le "print q(ok %d)"};
-open(STDOUT,">&dupout");
-open(STDERR,">&duperr");
+$cmd = sprintf $echo, 4;
+print `$cmd`;
-if (($^O eq 'MSWin32') || ($^O eq 'NetWare')) { print `type Io.dup` }
-else { system 'cat Io.dup' }
+$cmd = sprintf "$echo 1>&2", 5;
+$cmd = sprintf $echo, 5 if $^O eq 'MacOS'; # don't know if we can do this ...
+print `$cmd`;
+
+# KNOWN BUG system() does not honor STDOUT redirections on VMS.
+if( $^O eq 'VMS' ) {
+ print "not ok $_ # TODO system() not honoring STDOUT redirect on VMS\n"
+ for 6..7;
+}
+else {
+ system sprintf $echo, 6;
+ if ($^O eq 'MacOS') {
+ system sprintf $echo, 7;
+ }
+ else {
+ system sprintf "$echo 1>&2", 7;
+ }
+}
+
+close(STDOUT) or die "Could not close: $!";
+close(STDERR) or die "Could not close: $!";
+
+open(STDOUT,">&DUPOUT") or die "Could not open: $!";
+open(STDERR,">&DUPERR") or die "Could not open: $!";
+
+if (($^O eq 'MSWin32') || ($^O eq 'NetWare') || ($^O eq 'VMS')) { print `type Io.dup` }
+elsif ($^O eq 'MacOS') { system 'catenate Io.dup' }
+else { system 'cat Io.dup' }
unlink 'Io.dup';
print STDOUT "ok 8\n";
+open(F,">&",1) or die "Cannot dup to numeric 1: $!";
+print F "ok 9\n";
+close(F);
+
+open(F,">&",'1') or die "Cannot dup to string '1': $!";
+print F "ok 10\n";
+close(F);
+
+open(F,">&=",1) or die "Cannot dup to numeric 1: $!";
+print F "ok 11\n";
+close(F);
+
+if ($Config{useperlio}) {
+ open(F,">&=",'1') or die "Cannot dup to string '1': $!";
+ print F "ok 12\n";
+ close(F);
+} else {
+ open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
+ print F "ok 12\n";
+ close(F);
+}
+
+# To get STDOUT back.
+open(F, ">&DUPOUT") or die "Cannot dup stdout back: $!";
+
+curr_test(13);
+
+SKIP: {
+ skip("need perlio", 14) unless $Config{useperlio};
+
+ ok(open(F, ">&", STDOUT));
+ isnt(fileno(F), fileno(STDOUT));
+ close F;
+
+ ok(open(F, "<&=STDIN")) or _diag $!;
+ is(fileno(F), fileno(STDIN));
+ close F;
+
+ ok(open(F, ">&=STDOUT"));
+ is(fileno(F), fileno(STDOUT));
+ close F;
+
+ ok(open(F, ">&=STDERR"));
+ is(fileno(F), fileno(STDERR));
+ close F;
+
+ open(G, ">dup$$") or die;
+ my $g = fileno(G);
+
+ ok(open(F, ">&=$g"));
+ is(fileno(F), $g);
+ close F;
+
+ ok(open(F, ">&=G"));
+ is(fileno(F), $g);
+
+ print G "ggg\n";
+ print F "fff\n";
+
+ close G; # flush first
+ close F; # flush second
+
+ open(G, "<dup$$") or die;
+ {
+ my $line;
+ $line = <G>; chomp $line; is($line, "ggg");
+ $line = <G>; chomp $line; is($line, "fff");
+ }
+ close G;
+
+ END { 1 while unlink "dup$$" }
+}