cache: constify entry and host pointers in struct cache_entry

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/cache.h b/cache.h
index 7d5a0b9..134a91e 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -20,10 +20,10 @@
 #include "dns.h"
 
 struct cache_entry {
-        struct avl_node avl;
+       struct avl_node avl;
 
-       char *entry;
-       char *host;
+       const char *entry;
+       const char *host;
        uint32_t ttl;
        time_t time;
 };