From 855ea02b1556dd9c250fd69c3c0529ef045ab04b Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 3 Feb 2017 10:07:48 +0800
Subject: [PATCH] netdb: Use LWIP_MEM_ALIGN_BUFFER instead of open coded

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 src/api/netdb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/api/netdb.c b/src/api/netdb.c
index ccd9586f..f551412c 100644
--- a/src/api/netdb.c
+++ b/src/api/netdb.c
@@ -187,7 +187,7 @@ lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
   }
 
   namelen = strlen(name);
-  if (buflen < (sizeof(struct gethostbyname_r_helper) + namelen + 1 + (MEM_ALIGNMENT - 1))) {
+  if (buflen < (sizeof(struct gethostbyname_r_helper) + LWIP_MEM_ALIGN_BUFFER(namelen + 1))) {
     /* buf can't hold the data needed + a copy of name */
     *h_errnop = ERANGE;
     return -1;