Fix for u32 match, problems when parsing arguments

["Piotr Gasidło" <quaker@pandora.barbara.ds.polsl.gliwice.pl>]

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Hello,

I've found bug in u32 iptables helper library.

# iptables -A FORWARD -m u32 --u32 "0&0xffffffff=0"
iptables v1.2.11: u32: at char 2 error reading number

Attached patch, fixes problem.

-- 
Piotr 'QuakeR' Gasidło, BOFH @ pandora.barbara.eu.org
############## sending lusers to /dev/null since 1998
##### Waiting for tomorrow, for a little ray of light
### Waiting for tomorrow just to see your smile again

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diff -uNr iptables.orig/extensions/libipt_u32.c iptables/extensions/libipt_u32.c
--- iptables.orig/extensions/libipt_u32.c	Thu Sep  2 14:13:50 2004
+++ iptables/extensions/libipt_u32.c	Thu Sep  2 13:20:23 2004
@@ -85,7 +85,7 @@
 	char *end;
 	errno = 0;
 
-	number = strtol(*s, &end, 0);
+	number = strtoul(*s, &end, 0);
 	if (end == *s)
 		exit_error(PARAMETER_PROBLEM, 
 			   "u32: at char %d expected number", pos);

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