From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 25 Jul 2013 07:30:24 +0000 (-0400)
Subject: fix undefined strcpy call in inet_ntop
X-Git-Tag: v0.9.12~14
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f9dd79c8d191a8a5356d146c7ccf956677fea4e9;p=oweals%2Fmusl.git

fix undefined strcpy call in inet_ntop

source and dest arguments for strcpy cannot overlap, so memmove must
be used here. the length is already known from the above loop.
---

diff --git a/src/network/inet_ntop.c b/src/network/inet_ntop.c
index e9e2823f..ca333437 100644
--- a/src/network/inet_ntop.c
+++ b/src/network/inet_ntop.c
@@ -40,7 +40,7 @@ const char *inet_ntop(int af, const void *restrict a0, char *restrict s, socklen
 		}
 		if (max>2) {
 			buf[best] = buf[best+1] = ':';
-			strcpy(buf+best+2, buf+best+max);
+			memmove(buf+best+2, buf+best+max, i-best-max+1);
 		}
 		if (strlen(buf) < l) {
 			strcpy(s, buf);