netcat: fix Illegal instruction on listen udp

When listening to a udp port an Illegal instruction occurs.
This did NOT happen when compiled with debug on.

Fixes issue openwrt#4747, FS#2937

Signed-off-by: Rick Frankland <rfrankla@yahoo.com>

net/netcat/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=netcat
 PKG_VERSION:=0.7.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)

net/netcat/patches/002-udp_listen_fix.patch

@@ -0,0 +1,14 @@
+--- a/src/core.c
++++ b/src/core.c
+@@ -273,9 +273,9 @@ static int core_udp_listen(nc_sock_t *nc
+ 	dup_socket.domain = ncsock->domain;
+ 	dup_socket.proto = ncsock->proto;
+ 	memcpy(&dup_socket.local_host.iaddrs[0], &local_addr.sin_addr,
+-	       sizeof(local_addr));
++	       sizeof(local_addr.sin_addr));
+ 	memcpy(&dup_socket.host.iaddrs[0], &rem_addr.sin_addr,
+-	       sizeof(local_addr));
++	       sizeof(rem_addr.sin_addr));
+ 	dup_socket.local_port.netnum = local_addr.sin_port;
+ 	dup_socket.local_port.num = ntohs(local_addr.sin_port);
+ 	dup_socket.port.netnum = rem_addr.sin_port;