Make addr2string(), returning a literal string, const.

1 files changed, 1 insertions, 1 deletions

diff --git a/util.c b/util.c
index 98d6680..bf327ad 100644
--- a/util.c
+++ b/util.c
@@ -76,7 +76,7 @@ struct sockaddr *addr_copy(struct sockaddr *in) {
     return out;
 }
 
-char *addr2string(struct sockaddr *addr) {
+const char *addr2string(struct sockaddr *addr) {
     struct sockaddr_in6 *sa6;
     struct sockaddr_in sa4;
     static char addr_buf[2][INET6_ADDRSTRLEN];