1 files changed, 135 insertions, 0 deletions
diff --git a/contrib/perl5/t/io/pipe.t b/contrib/perl5/t/io/pipe.t
new file mode 100755
index 0000000..ba7a9b0
--- /dev/null
+++ b/contrib/perl5/t/io/pipe.t
@@ -0,0 +1,135 @@
+#!./perl
+
+# $RCSfile: pipe.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:31 $
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    require Config; import Config;
+    unless ($Config{'d_fork'}) {
+	print "1..0\n";
+	exit 0;
+    }
+}
+
+$| = 1;
+print "1..12\n";
+
+open(PIPE, "|-") || (exec 'tr', 'YX', 'ko');
+print PIPE "Xk 1\n";
+print PIPE "oY 2\n";
+close PIPE;
+
+if (open(PIPE, "-|")) {
+    while(<PIPE>) {
+	s/^not //;
+	print;
+    }
+    close PIPE;        # avoid zombies which disrupt test 12
+}
+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;
+    }
+    close READER;     # avoid zombies which disrupt test 12
+}
+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 {
+    $SIG{'PIPE'} = 'IGNORE';       # loop preventer
+    print "ok 7\n";
+}
+
+print WRITER "not ok 7\n";
+close WRITER;
+sleep 1;
+print "ok 8\n";
+
+# VMS doesn't like spawning subprocesses that are still connected to
+# STDOUT.  Someone should modify tests #9 to #12 to work with VMS.
+
+if ($^O eq 'VMS') {
+    print "ok 9\n";
+    print "ok 10\n";
+    print "ok 11\n";
+    print "ok 12\n";
+    exit;
+}
+
+if ($Config{d_sfio} || $^O eq machten || $^O eq beos) {
+    # Sfio doesn't report failure when closing a broken pipe
+    # that has pending output.  Go figure.  MachTen doesn't either,
+    # but won't write to broken pipes, so nothing's pending at close.
+    # BeOS will not write to broken pipes, either.
+    print "ok 9\n";
+}
+else {
+    local $SIG{PIPE} = 'IGNORE';
+    open NIL, '|true'	or die "open failed: $!";
+    sleep 2;
+    print NIL 'foo'	or die "print failed: $!";
+    if (close NIL) {
+	print "not ok 9\n";
+    }
+    else {
+	print "ok 9\n";
+    }
+}
+
+# check that errno gets forced to 0 if the piped program exited non-zero
+open NIL, '|exit 23;' or die "fork failed: $!";
+$! = 1;
+if (close NIL) {
+    print "not ok 10\n# successful close\n";
+}
+elsif ($! != 0) {
+    print "not ok 10\n# errno $!\n";
+}
+elsif ($? == 0) {
+    print "not ok 10\n# status 0\n";
+}
+else {
+    print "ok 10\n";
+}
+
+# check that status for the correct process is collected
+wait;				# Collect from $pid
+my $zombie = fork or exit 37;
+my $pipe = open *FH, "sleep 2;exit 13|" or die "Open: $!\n";
+$SIG{ALRM} = sub { return };
+alarm(1);
+my $close = close FH;
+if ($? == 13*256 && ! length $close && ! $!) {
+    print "ok 11\n";
+} else {
+    print "not ok 11\n# close $close\$?=$?   \$!=", $!+0, ":$!\n";
+};
+my $wait = wait;
+if ($? == 37*256 && $wait == $zombie && ! $!) {
+    print "ok 12\n";
+} else {
+    print "not ok 12\n# pid=$wait first=$pid pipe=$pipe zombie=$zombie me=$$ \$?=$?   \$!=", $!+0, ":$!\n";
+}