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Add is_unqualified_hostname function

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Phil Davis 2014-11-11 00:16:06 +05:45
parent 894a0159a0
commit 6bcbd862f7
1 changed files with 12 additions and 1 deletions
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13
etc/inc/util.inc
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@ -670,7 +670,18 @@ function is_subnetoralias($subnet) {
return is_subnet($subnet);
}
/* returns true if $hostname is a valid hostname */
/* returns true if $hostname is just a valid hostname (top part without any of the domain part) */
function is_unqualified_hostname($hostname) {
if (!is_string($hostname))
return false;
if (preg_match('/^(?:[a-z0-9_]|[a-z0-9_][a-z0-9_\-]*[a-z0-9_])$/i', $hostname))
return true;
else
return false;
}
/* returns true if $hostname is a valid hostname, with or without being a fully-qualified domain name. */
function is_hostname($hostname) {
if (!is_string($hostname))
return false;