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Index: dnsmasq-2.66/src/dhcp.c
===================================================================
--- dnsmasq-2.66.orig/src/dhcp.c 2013-04-17 14:52:49.000000000 +0200
+++ dnsmasq-2.66/src/dhcp.c 2013-04-24 08:24:20.393711625 +0200
@@ -140,7 +140,7 @@
struct iovec iov;
ssize_t sz;
int iface_index = 0, unicast_dest = 0, is_inform = 0;
- struct in_addr iface_addr;
+ struct in_addr iface_addr, *addrp = NULL;
struct iface_param parm;
#ifdef HAVE_LINUX_NETWORK
struct arpreq arp_req;
@@ -252,11 +252,9 @@
ifr.ifr_addr.sa_family = AF_INET;
if (ioctl(daemon->dhcpfd, SIOCGIFADDR, &ifr) != -1 )
- iface_addr = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
- else
{
- my_syslog(MS_DHCP | LOG_WARNING, _("DHCP packet received on %s which has no address"), ifr.ifr_name);
- return;
+ addrp = &iface_addr;
+ iface_addr = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
}
for (tmp = daemon->dhcp_except; tmp; tmp = tmp->next)
@@ -270,7 +268,7 @@
parm.current = NULL;
parm.ind = iface_index;
- if (!iface_check(AF_INET, (struct all_addr *)&iface_addr, ifr.ifr_name, NULL))
+ if (!iface_check(AF_INET, (struct all_addr *)addrp, ifr.ifr_name, NULL))
{
/* If we failed to match the primary address of the interface, see if we've got a --listen-address
for a secondary */
@@ -289,7 +287,13 @@
there is more than one address on the interface in the same subnet */
complete_context(match.addr, iface_index, match.netmask, match.broadcast, &parm);
}
-
+
+ if (!addrp)
+ {
+ my_syslog(MS_DHCP | LOG_WARNING, _("DHCP packet received on %s which has no address"), ifr.ifr_name);
+ return;
+ }
+
if (!iface_enumerate(AF_INET, &parm, complete_context))
return;
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