general-functions.pl: Fix for bug #12865 - Static IP address pools - Add network - Name wit>

- The fix for bug #12428 removed spaces from the validhostname subroutine as hostnames are
   not supposed to have spaces
- This resulted in spaces no longer being allowed for the Static IP Address Pools names
- New subroutine created called validccdname. This allows letters, upper and lower case,
   numbers, spaces and dashes

Fixes: Bug #12865
Tested-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>

config/cfgroot/general-functions.pl

@@ -721,6 +721,21 @@ sub validhostname
 	return 1;
 }
 
+sub validccdname
+{
+	# Checks a ccdname for letters, numbers and spaces
+        my $ccdname = $_[0];
+
+	# ccdname should be at least one character in length
+	# but no more than 63 characters
+	if (length ($ccdname) < 1 || length ($ccdname) > 63) {
+		return 0;}
+	# Only valid characters are a-z, A-Z, 0-9, space and -
+	if ($ccdname !~ /^[a-zA-Z0-9 -]*$/) {
+		return 0;}
+	return 1;
+}
+
 sub validdomainname
 {
 	my $part;