libxtables: ignore whitespace in the multiaddress argument parser

References: http://bugzilla.netfilter.org/show_bug.cgi?id=727
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/iptables/xtables.c b/iptables/xtables.c
index 3b173959cd7bfbfb520b4da3fb5e27b92b063365..0f02592036b3a708c3e41adf2513091f4a84bacc 100644 (file)
--- a/iptables/xtables.c
+++ b/iptables/xtables.c
@@ -1314,6 +1314,8 @@ void xtables_ipparse_multiple(const char *name, struct in_addr **addrpp,
        loop = name;
 
        for (i = 0; i < count; ++i) {
+               while (isspace(*loop))
+                       ++loop;
                next = strchr(loop, ',');
                if (next != NULL)
                        len = next - loop;
@@ -1628,6 +1630,8 @@ xtables_ip6parse_multiple(const char *name, struct in6_addr **addrpp,
        loop = name;
 
        for (i = 0; i < count /*NB: count can grow*/; ++i) {
+               while (isspace(*loop))
+                       ++loop;
                next = strchr(loop, ',');
                if (next != NULL)
                        len = next - loop;