From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Tue, 25 Aug 2015 09:00:06 +0000 (+0200)
Subject: Add generic parse_host_and_port function
X-Git-Url: https://git.proxmox.com/?p=pve-common.git;a=commitdiff_plain;h=b2613777279f5a55b1ce2b460768943d946ccb9d

Add generic parse_host_and_port function

Added a generic function to split a host+port string to the
host and port part supporting the two most common ipv6
notations beside domains and ipv4: with brackets for the
address or a dot as port separator.
---

diff --git a/src/PVE/Tools.pm b/src/PVE/Tools.pm
index a7bcd35..0c6dde6 100644
--- a/src/PVE/Tools.pm
+++ b/src/PVE/Tools.pm
@@ -1102,4 +1102,17 @@ sub get_host_address_family {
     return $res[0]->{family};
 }
 
+# Parses any sane kind of host, or host+port pair:
+# The port is always optional and thus may be undef.
+sub parse_host_and_port {
+    my ($address) = @_;
+    if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ ||             # ipv4 or host with optional ':port'
+        $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port'
+        $address =~ /^($IPV6RE)(?:\.(\d+))?$/)                              # ipv6 with optional port separated by dot
+    {
+	return ($1, $2, 1); # end with 1 to support simple if(parse...) tests
+    }
+    return; # nothing
+}
+
 1;