preparatory patch for -Wwrite-strings #6
diff --git a/networking/libiproute/ll_proto.c b/networking/libiproute/ll_proto.c
index 20f26ca..aad460b 100644
--- a/networking/libiproute/ll_proto.c
+++ b/networking/libiproute/ll_proto.c
@@ -24,7 +24,7 @@
 #define __PF(f,n) { ETH_P_##f, #n },
 static struct {
 	int id;
-	char *name;
+	const char *name;
 } llproto_names[] = {
 __PF(LOOP,loop)
 __PF(PUP,pup)
diff --git a/networking/libiproute/rtm_map.c b/networking/libiproute/rtm_map.c
index 7eb4c71..c16406b 100644
--- a/networking/libiproute/rtm_map.c
+++ b/networking/libiproute/rtm_map.c
@@ -13,11 +13,10 @@
 
 #include <stdlib.h>
 #include <string.h>
-
 #include "rt_names.h"
 #include "utils.h"
 
-char *rtnl_rtntype_n2a(int id, char *buf, int len)
+const char *rtnl_rtntype_n2a(int id, char *buf, int len)
 {
 	switch (id) {
 	case RTN_UNSPEC:
diff --git a/networking/libiproute/rtm_map.h b/networking/libiproute/rtm_map.h
index b9c8c50..cbbcc21 100644
--- a/networking/libiproute/rtm_map.h
+++ b/networking/libiproute/rtm_map.h
@@ -2,7 +2,7 @@
 #ifndef __RTM_MAP_H__
 #define __RTM_MAP_H__ 1
 
-char *rtnl_rtntype_n2a(int id, char *buf, int len);
+const char *rtnl_rtntype_n2a(int id, char *buf, int len);
 int rtnl_rtntype_a2n(int *id, char *arg);
 
 int get_rt_realms(uint32_t *realms, char *arg);