'default' keyword in the RH 'route6' file

[Francesco Prelz <Francesco Prelz mi infn it>]

The regexps that are currently used for matching the 'default' keyword 
when reading the network-scripts/route6-XXX RedHat configuration file 
in settings/plugins/ifcfg-rh/reader.c
will just match the string 'defa', that matches the hex in 
IPV6_ADDR_REGEX:

   1005 #define IPV6_ADDR_REGEX "[0-9A-Fa-f:.]+"
(...)
   1022         const char *pattern_to1 = "^\\s*(" IPV6_ADDR_REGEX "|default)"  /* IPv6 or 'default' keyword */
   1023                                   "(?:/(\\d{1,2}))?";/* optional prefix */
   1024         const char *pattern_to2 = "to\\s+(" IPV6_ADDR_REGEX "|default)"  /* IPv6 or 'default' keyword */
   1025                                   "(?:/(\\d{1,2}))?";

Which leads to this error:
 NetworkManager[2236]:    ifcfg-rh:     error: Invalid IP6 route destination address 'defa'

One quick way out is to swap 'default' and IPV6_ADDR_REGEX in the
regexps (as in the attached patch) so that 'default' matches first (at 
least in the current g_regexp implementation: as for this being correct 
and portable, I can only go as far as Friedl's "Mastering Regular 
Expressions", page 112: "you can pretty much count on
each alternative being checked in the order given in the expression").

Thanks.
Francesco Prelz
INFN - Milan

--- ./src/settings/plugins/ifcfg-rh/reader.c.ORIG	2013-01-21 16:59:46.000000000 +0100
+++ ./src/settings/plugins/ifcfg-rh/reader.c	2013-01-21 17:04:23.000000000 +0100
@@ -1041,9 +1041,9 @@
 	gboolean success = FALSE;
 
 	const char *pattern_empty = "^\\s*(\\#.*)?$";
-	const char *pattern_to1 = "^\\s*(" IPV6_ADDR_REGEX "|default)"  /* IPv6 or 'default' keyword */
+	const char *pattern_to1 = "^\\s*(default|" IPV6_ADDR_REGEX ")"  /* IPv6 or 'default' keyword */
 	                          "(?:/(\\d{1,3}))?";                   /* optional prefix */
-	const char *pattern_to2 = "to\\s+(" IPV6_ADDR_REGEX "|default)" /* IPv6 or 'default' keyword */
+	const char *pattern_to2 = "to\\s+(default|" IPV6_ADDR_REGEX ")" /* IPv6 or 'default' keyword */
 	                          "(?:/(\\d{1,3}))?";                   /* optional prefix */
 	const char *pattern_via = "via\\s+(" IPV6_ADDR_REGEX ")";       /* IPv6 of gateway */
 	const char *pattern_metric = "metric\\s+(\\d+)";                /* metric */