Plan 9 from Bell Labs’s /usr/web/sources/contrib/gabidiaz/root/sys/src/cmd/perl/lib/hostname.pl

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Distributed under the MIT License.
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# From: asherman@fmrco.com (Aaron Sherman)
#
# This library is no longer being maintained, and is included for backward
# compatibility with Perl 4 programs which may require it.
#
# In particular, this should not be used as an example of modern Perl
# programming techniques.
#
# Suggested alternative: Sys::Hostname
#
sub hostname
{
	local(*P,@tmp,$hostname,$_);
	if (open(P,"hostname 2>&1 |") && (@tmp = <P>) && close(P))
	{
		chop($hostname = $tmp[$#tmp]);
	}
	elsif (open(P,"uname -n 2>&1 |") && (@tmp = <P>) && close(P))
	{
		chop($hostname = $tmp[$#tmp]);
	}
	else
	{
		die "$0: Cannot get hostname from 'hostname' or 'uname -n'\n";
	}
	@tmp = ();
	close P; # Just in case we failed in an odd spot....
	$hostname;
}

1;

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