dslinux/user/perl/ext/Socket/t Socket.t socketpair.t

[cayenne]

Update of /cvsroot/dslinux/dslinux/user/perl/ext/Socket/t
In directory antilope:/tmp/cvs-serv17422/ext/Socket/t

Added Files:
	Socket.t socketpair.t 
Log Message:
Adding fresh perl source to HEAD to branch from

--- NEW FILE: socketpair.t ---
#!./perl -w

my $child;
my $can_fork;
my $has_perlio;

BEGIN {
    chdir 't' if -d 't';
    @INC = '../lib';
    require Config; import Config;
    $can_fork = $Config{'d_fork'}
		|| ($^O eq 'MSWin32' && $Config{useithreads}
		    && $Config{ccflags} =~ /-DPERL_IMPLICIT_SYS\b/);


    if ($^O eq "hpux" or $Config{'extensions'} !~ /\bSocket\b/ &&
        !(($^O eq 'VMS') && $Config{d_socket})) {
	print "1..0\n";
	exit 0;
      }

    # Too many things in this test will hang forever if something is wrong,
    # so we need a self destruct timer. And IO can hang despite an alarm.

    # This is convoluted, but we must fork before Test::More, else child's
    # Test::More thinks that it ran no tests, and prints a message to that
    # effect
    if( $can_fork) {
      my $parent = $$;
      $child = fork;
      die "Fork failed" unless defined $child;
      if (!$child) {
        $SIG{INT} = sub {exit 0}; # You have 60 seconds. Your time starts now.
        my $must_finish_by = time + 60;
        my $remaining;
        while (($remaining = $must_finish_by - time) > 0) {
          sleep $remaining;
        }
        warn "Something unexpectedly hung during testing";
        kill "INT", $parent or die "Kill failed: $!";
        exit 1;
      }
    }
    unless ($has_perlio = find PerlIO::Layer 'perlio') {
	print <<EOF;
# Since you don't have perlio you might get failures with UTF-8 locales.
EOF
    }
}

use Socket;
use Test::More;
use strict;
use warnings;
use Errno;

my $skip_reason;

if( !$Config{d_alarm} ) {
  plan skip_all => "alarm() not implemented on this platform";
} elsif( !$can_fork ) {
  plan skip_all => "fork() not implemented on this platform";
} else {
  # This should fail but not die if there is real socketpair
  eval {socketpair LEFT, RIGHT, -1, -1, -1};
  if ($@ =~ /^Unsupported socket function "socketpair" called/ ||
      $! =~ /^The operation requested is not supported./) { # Stratus VOS
    plan skip_all => 'No socketpair (real or emulated)';
  } else {
    eval {AF_UNIX};
    if ($@ =~ /^Your vendor has not defined Socket macro AF_UNIX/) {
      plan skip_all => 'No AF_UNIX';
    } else {
      plan tests => 45;
    }
  }
}

# But we'll install an alarm handler in case any of the races below fail.
$SIG{ALRM} = sub {die "Unexpected alarm during testing"};

ok (socketpair (LEFT, RIGHT, AF_UNIX, SOCK_STREAM, PF_UNSPEC),
    "socketpair (LEFT, RIGHT, AF_UNIX, SOCK_STREAM, PF_UNSPEC)")
  or print "# \$\! = $!\n";

if ($has_perlio) {
    binmode(LEFT,  ":bytes");
    binmode(RIGHT, ":bytes");
}

my @left = ("hello ", "world\n");
my @right = ("perl ", "rules!"); # Not like I'm trying to bias any survey here.

foreach (@left) {
  # is (syswrite (LEFT, $_), length $_, "write " . _qq ($_) . " to left");
  is (syswrite (LEFT, $_), length $_, "syswrite to left");
}
foreach (@right) {
  # is (syswrite (RIGHT, $_), length $_, "write " . _qq ($_) . " to right");
  is (syswrite (RIGHT, $_), length $_, "syswrite to right");
}

# stream socket, so our writes will become joined:
my ($buffer, $expect);
$expect = join '', @right;
undef $buffer;
is (read (LEFT, $buffer, length $expect), length $expect, "read on left");
is ($buffer, $expect, "content what we expected?");
$expect = join '', @left;
undef $buffer;
is (read (RIGHT, $buffer, length $expect), length $expect, "read on right");
is ($buffer, $expect, "content what we expected?");

ok (shutdown(LEFT, SHUT_WR), "shutdown left for writing");
# This will hang forever if eof is buggy, and alarm doesn't interrupt system
# Calls. Hence the child process minder.
SKIP: {
  skip "SCO Unixware / OSR have a bug with shutdown",2 if $^O =~ /^(?:svr|sco)/;
  local $SIG{ALRM} = sub { warn "EOF on right took over 3 seconds" };
  local $TODO = "Known problems with unix sockets on $^O"
      if $^O eq 'hpux'   || $^O eq 'super-ux';
  alarm 3;
  $! = 0;
  ok (eof RIGHT, "right is at EOF");
  local $TODO = "Known problems with unix sockets on $^O"
      if $^O eq 'unicos' || $^O eq 'unicosmk';
  is ($!, '', 'and $! should report no error');
  alarm 60;
}

my $err = $!;
$SIG{PIPE} = 'IGNORE';
{
  local $SIG{ALRM}
    = sub { warn "syswrite to left didn't fail within 3 seconds" };
  alarm 3;
  # Split the system call from the is() - is() does IO so
  # (say) a flush may do a seek which on a pipe may disturb errno
  my $ans = syswrite (LEFT, "void");
  $err = $!;
  is ($ans, undef, "syswrite to shutdown left should fail");
  alarm 60;
}
{
  # This may need skipping on some OSes - restoring value saved above
  # should help
  $! = $err;
  ok (($!{EPIPE} or $!{ESHUTDOWN}), '$! should be EPIPE or ESHUTDOWN')
    or printf "\$\!=%d(%s)\n", $err, $err;
}

my @gripping = (chr 255, chr 127);
foreach (@gripping) {
  is (syswrite (RIGHT, $_), length $_, "syswrite to right");
}

ok (!eof LEFT, "left is not at EOF");

$expect = join '', @gripping;
undef $buffer;
is (read (LEFT, $buffer, length $expect), length $expect, "read on left");
is ($buffer, $expect, "content what we expected?");

ok (close LEFT, "close left");
ok (close RIGHT, "close right");


# And now datagrams
# I suspect we also need a self destruct time-bomb for these, as I don't see any
# guarantee that the stack won't drop a UDP packet, even if it is for localhost.

SKIP: {
  skip "No usable SOCK_DGRAM for socketpair", 24 if ($^O =~ /^(MSWin32|os2)\z/);
  local $TODO = "socketpair not supported on $^O" if $^O eq 'nto';

ok (socketpair (LEFT, RIGHT, AF_UNIX, SOCK_DGRAM, PF_UNSPEC),
    "socketpair (LEFT, RIGHT, AF_UNIX, SOCK_DGRAM, PF_UNSPEC)")
  or print "# \$\! = $!\n";

if ($has_perlio) {
    binmode(LEFT,  ":bytes");
    binmode(RIGHT, ":bytes");
}

foreach (@left) {
  # is (syswrite (LEFT, $_), length $_, "write " . _qq ($_) . " to left");
  is (syswrite (LEFT, $_), length $_, "syswrite to left");
}
foreach (@right) {
  # is (syswrite (RIGHT, $_), length $_, "write " . _qq ($_) . " to right");
  is (syswrite (RIGHT, $_), length $_, "syswrite to right");
}

# stream socket, so our writes will become joined:
my ($total);
$total = join '', @right;
foreach $expect (@right) {
  undef $buffer;
  is (sysread (LEFT, $buffer, length $total), length $expect, "read on left");
  is ($buffer, $expect, "content what we expected?");
}
$total = join '', @left;
foreach $expect (@left) {
  undef $buffer;
  is (sysread (RIGHT, $buffer, length $total), length $expect, "read on right");
  is ($buffer, $expect, "content what we expected?");
}

ok (shutdown(LEFT, 1), "shutdown left for writing");

# eof uses buffering. eof is indicated by a sysread of zero.
# but for a datagram socket there's no way it can know nothing will ever be
# sent
SKIP: {
  skip "$^O does length 0 udp reads", 2 if ($^O eq 'os390');

  my $alarmed = 0;
  local $SIG{ALRM} = sub { $alarmed = 1; };
  print "# Approximate forever as 3 seconds. Wait 'forever'...\n";
  alarm 3;
  undef $buffer;
  is (sysread (RIGHT, $buffer, 1), undef,
      "read on right should be interrupted");
  is ($alarmed, 1, "alarm should have fired");
}

alarm 30;

#ok (eof RIGHT, "right is at EOF");

foreach (@gripping) {
  is (syswrite (RIGHT, $_), length $_, "syswrite to right");
}

$total = join '', @gripping;
foreach $expect (@gripping) {
  undef $buffer;
  is (sysread (LEFT, $buffer, length $total), length $expect, "read on left");
  is ($buffer, $expect, "content what we expected?");
}

ok (close LEFT, "close left");
ok (close RIGHT, "close right");

} # end of DGRAM SKIP

kill "INT", $child or warn "Failed to kill child process $child: $!";
exit 0;

--- NEW FILE: Socket.t ---
#!./perl

BEGIN {
    chdir 't' if -d 't';
    @INC = '../lib';
    require Config; import Config;
    if ($Config{'extensions'} !~ /\bSocket\b/ && 
        !(($^O eq 'VMS') && $Config{d_socket})) {
	print "1..0\n";
	exit 0;
    }
    $has_alarm = $Config{d_alarm};
}
	
use Socket;

print "1..17\n";

$has_echo = $^O ne 'MSWin32';
$alarmed = 0;
sub arm      { $alarmed = 0; alarm(shift) if $has_alarm }
sub alarmed  { $alarmed = 1 }
$SIG{ALRM} = 'alarmed'                    if $has_alarm;

if (socket(T,PF_INET,SOCK_STREAM,6)) {
  print "ok 1\n";
  
  arm(5);
  my $host = $^O eq 'MacOS' || ($^O eq 'irix' && $Config{osvers} == 5) ?
                 '127.0.0.1' : 'localhost';
  my $localhost = inet_aton($host);

  if ($has_echo && defined $localhost && connect(T,pack_sockaddr_in(7,$localhost))){
	arm(0);

	print "ok 2\n";

	print "# Connected to " .
		inet_ntoa((unpack_sockaddr_in(getpeername(T)))[1])."\n";

	arm(5);
	syswrite(T,"hello",5);
	arm(0);

	arm(5);
	$read = sysread(T,$buff,10);	# Connection may be granted, then closed!
	arm(0);

	while ($read > 0 && length($buff) < 5) {
	    # adjust for fact that TCP doesn't guarantee size of reads/writes
	    arm(5);
	    $read = sysread(T,$buff,10,length($buff));
	    arm(0);
	}
	print(($read == 0 || $buff eq "hello") ? "ok 3\n" : "not ok 3\n");
  }
  else {
	print "# You're allowed to fail tests 2 and 3 if\n";
	print "# the echo service has been disabled or if your\n";
        print "# gethostbyname() cannot resolve your localhost.\n";
	print "# 'Connection refused' indicates disabled echo service.\n";
	print "# 'Interrupted system call' indicates a hanging echo service.\n";
	print "# Error: $!\n";
	print "ok 2 - skipped\n";
	print "ok 3 - skipped\n";
  }
}
else {
	print "# Error: $!\n";
	print "not ok 1\n";
}

if( socket(S,PF_INET,SOCK_STREAM,6) ){
  print "ok 4\n";

  arm(5);
  if ($has_echo && connect(S,pack_sockaddr_in(7,INADDR_LOOPBACK))){
        arm(0);

	print "ok 5\n";

	print "# Connected to " .
		inet_ntoa((unpack_sockaddr_in(getpeername(S)))[1])."\n";

	arm(5);
	syswrite(S,"olleh",5);
	arm(0);

	arm(5);
	$read = sysread(S,$buff,10);	# Connection may be granted, then closed!
	arm(0);

	while ($read > 0 && length($buff) < 5) {
	    # adjust for fact that TCP doesn't guarantee size of reads/writes
	    arm(5);
	    $read = sysread(S,$buff,10,length($buff));
	    arm(0);
	}
	print(($read == 0 || $buff eq "olleh") ? "ok 6\n" : "not ok 6\n");
  }
  else {
	print "# You're allowed to fail tests 5 and 6 if\n";
	print "# the echo service has been disabled.\n";
	print "# 'Interrupted system call' indicates a hanging echo service.\n";
	print "# Error: $!\n";
	print "ok 5 - skipped\n";
	print "ok 6 - skipped\n";
  }
}
else {
	print "# Error: $!\n";
	print "not ok 4\n";
}

# warnings
$SIG{__WARN__} = sub {
    ++ $w if $_[0] =~ /^6-ARG sockaddr_in call is deprecated/ ;
} ;
$w = 0 ;
sockaddr_in(1,2,3,4,5,6) ;
print ($w == 1 ? "not ok 7\n" : "ok 7\n") ;
use warnings 'Socket' ;
sockaddr_in(1,2,3,4,5,6) ;
print ($w == 1 ? "ok 8\n" : "not ok 8\n") ;

# Thest that whatever we give into pack/unpack_sockaddr retains
# the value thru the entire chain.
if((inet_ntoa((unpack_sockaddr_in(pack_sockaddr_in(100,inet_aton("10.250.230.10"))))[1])) eq '10.250.230.10') {
    print "ok 9\n"; 
} else {
    print "not ok 9\n"; 
}
print ((inet_ntoa(inet_aton("10.20.30.40")) eq "10.20.30.40") ? "ok 10\n" : "not ok 10\n");
print ((inet_ntoa(v10.20.30.40) eq "10.20.30.40") ? "ok 11\n" : "not ok 11\n");
{
    my ($port,$addr) = unpack_sockaddr_in(pack_sockaddr_in(100,v10.10.10.10));
    print (($port == 100) ? "ok 12\n" : "not ok 12\n");
    print ((inet_ntoa($addr) eq "10.10.10.10") ? "ok 13\n" : "not ok 13\n");
}
				     
eval { inet_ntoa(v10.20.30.400) };
print (($@ =~ /^Wide character in Socket::inet_ntoa at/) ? "ok 14\n" : "not ok 14\n");

if (sockaddr_family(pack_sockaddr_in(100,inet_aton("10.250.230.10"))) == AF_INET) {
    print "ok 15\n";
} else {
    print "not ok 15\n";
}

eval { sockaddr_family("") };
print (($@ =~ /^Bad arg length for Socket::sockaddr_family, length is 0, should be at least \d+/) ? "ok 16\n" : "not ok 16\n");

if ($^O eq 'linux') {
    # see if we can handle abstract sockets
    my $test_abstract_socket = chr(0) . '/tmp/test-perl-socket';
    my $addr = sockaddr_un ($test_abstract_socket);
    my ($path) = sockaddr_un ($addr);
    if ($test_abstract_socket eq $path) {
        print "ok 17\n";
    }
    else {
	$path =~ s/\0/\\0/g;
	print "# got <$path>\n";
        print "not ok 17\n";
    }
} else {
    # doesn't have abstract socket support
    print "ok 17 - skipped on this platform\n";
}