From: EunBong Song <eunb.song@samsung.com>
Date: Tue, 4 Jul 2017 04:11:26 +0000 (+0900)
Subject: libc netdb: gethostbyname_r: Fix check for space in buffer.
X-Git-Tag: 1.1_Public_Release~318^2~74
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6c2ccc947df8eda13c0675f16e640cadc92b7cc3;p=rtos%2Ftinyara.git

libc netdb: gethostbyname_r: Fix check for space in buffer.

This patch comes from Nuttx commit id: ee7217be

Change-Id: Ifc2b1973978b1b16e7fa1795a6009717bd67aa51
Signed-off-by: EunBong Song <eunb.song@samsung.com>
---

diff --git a/lib/libc/netdb/lib_gethostbyaddrr.c b/lib/libc/netdb/lib_gethostbyaddrr.c
index 6c08e22..a2653ef 100644
--- a/lib/libc/netdb/lib_gethostbyaddrr.c
+++ b/lib/libc/netdb/lib_gethostbyaddrr.c
@@ -213,7 +213,7 @@ static int lib_localhost(FAR const void *addr, socklen_t len, int type, FAR stru
 	/* And copy localhost host name */
 
 	namelen = strlen(g_lo_hostname);
-	if (addrlen + namelen + 1 > buflen) {
+	if ((namelen + 1) > buflen) {
 		herrnocode = ERANGE;
 		goto errorout_with_herrnocode;
 	}
diff --git a/lib/libc/netdb/lib_gethostbynamer.c b/lib/libc/netdb/lib_gethostbynamer.c
index d23649d..3928b7d 100644
--- a/lib/libc/netdb/lib_gethostbynamer.c
+++ b/lib/libc/netdb/lib_gethostbynamer.c
@@ -215,7 +215,7 @@ static int lib_numeric_address(FAR const char *name, FAR struct hostent *host, F
 	/* And copy name */
 
 	namelen = strlen(name);
-	if (addrlen + namelen + 1 > buflen) {
+	if ((namelen + 1) > buflen) {
 		return -ERANGE;
 	}
 
@@ -403,7 +403,7 @@ static int lib_find_answer(FAR const char *name, FAR struct hostent *host, FAR c
 	/* And copy the host name */
 
 	namelen = strlen(name);
-	if (addrlen + namelen + 1 > buflen) {
+	if ((namelen + 1) > buflen) {
 		return -ERANGE;
 	}
 
@@ -539,7 +539,7 @@ static int lib_dns_lookup(FAR const char *name, FAR struct hostent *host, FAR ch
 		/* And copy name */
 
 		namelen = strlen(name);
-		if (addrlen + namelen + 1 > buflen) {
+		if ((namelen + 1) > buflen) {
 			return -ERANGE;
 		}