Require users to provide a length information for inet_ntoa_r,

this is common on other platforms.

Reported by:	pointyhat via kris

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/libc/inet/inet_ntoa.c b/lib/libc/inet/inet_ntoa.c
index b75a983a523a..f5d69fac583c 100644
--- a/lib/libc/inet/inet_ntoa.c
+++ b/lib/libc/inet/inet_ntoa.c
@@ -1,4 +1,4 @@
-/*
+/*-
  * Copyright (c) 1983, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -60,9 +60,10 @@ inet_ntoa(struct in_addr in) {
 }
 
 char *
-inet_ntoa_r(struct in_addr in, char *buf)
+inet_ntoa_r(struct in_addr in, char *buf, socklen_t size)
 {
-	(void) inet_ntop(AF_INET, &in, buf, sizeof("255.255.255.255"));
+
+	(void) inet_ntop(AF_INET, &in, buf, size);
 	return (buf);
 }