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#!./perl
# $Header: io.pipe,v 3.0.1.1 90/02/28 18:32:41 lwall Locked $
$| = 1;
print "1..8\n";
open(PIPE, "|-") || (exec 'tr', '[A-Z]', '[a-z]');
print PIPE "OK 1\n";
print PIPE "ok 2\n";
close PIPE;
if (open(PIPE, "-|")) {
while(<PIPE>) {
s/^not //;
print;
}
}
else {
print STDOUT "not ok 3\n";
exec 'echo', 'not ok 4';
}
pipe(READER,WRITER) || die "Can't open pipe";
if ($pid = fork) {
close WRITER;
while(<READER>) {
s/^not //;
y/A-Z/a-z/;
print;
}
}
else {
die "Couldn't fork" unless defined $pid;
close READER;
print WRITER "not ok 5\n";
open(STDOUT,">&WRITER") || die "Can't dup WRITER to STDOUT";
close WRITER;
exec 'echo', 'not ok 6';
}
pipe(READER,WRITER) || die "Can't open pipe";
close READER;
$SIG{'PIPE'} = 'broken_pipe';
sub broken_pipe {
print "ok 7\n";
}
print WRITER "not ok 7\n";
close WRITER;
print "ok 8\n";
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