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From: Xin LI <delphij@FreeBSD.org>
Date: Fri, 2 Oct 2015 16:35:41 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r288510 - head/usr.sbin/rpcbind
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Author: delphij
Date: Fri Oct  2 16:35:41 2015
New Revision: 288510
URL: https://svnweb.freebsd.org/changeset/base/288510

Log:
  Fix a regression with SA-15:24 patch that prevented NIS from
  working.

Modified:
  head/usr.sbin/rpcbind/rpcb_svc_com.c

Modified: head/usr.sbin/rpcbind/rpcb_svc_com.c
==============================================================================
--- head/usr.sbin/rpcbind/rpcb_svc_com.c	Fri Oct  2 16:30:54 2015	(r288509)
+++ head/usr.sbin/rpcbind/rpcb_svc_com.c	Fri Oct  2 16:35:41 2015	(r288510)
@@ -1052,12 +1052,15 @@ static bool_t
 netbuf_copybuf(struct netbuf *dst, const struct netbuf *src)
 {
 
-	assert(dst->buf == NULL);
+	if (dst->len != src->len || dst->buf == NULL) {
+		if (dst->buf != NULL)
+			free(dst->buf);
+		if ((dst->buf = malloc(src->len)) == NULL)
+			return (FALSE);
 
-	if ((dst->buf = malloc(src->len)) == NULL)
-		return (FALSE);
+		dst->maxlen = dst->len = src->len;
+	}
 
-	dst->maxlen = dst->len = src->len;
 	memcpy(dst->buf, src->buf, src->len);
 	return (TRUE);
 }