clear the whole header

SCCS-vsn: lib/libc/net/res_mkquery.c 6.9

diff --git a/usr/src/lib/libc/net/res_mkquery.c b/usr/src/lib/libc/net/res_mkquery.c
index fc8b4a2..94a8c2d 100644 (file)
--- a/usr/src/lib/libc/net/res_mkquery.c
+++ b/usr/src/lib/libc/net/res_mkquery.c
@@ -16,7 +16,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)res_mkquery.c      6.8 (Berkeley) %G%";
+static char sccsid[] = "@(#)res_mkquery.c      6.9 (Berkeley) %G%";
 #endif /* LIBC_SCCS and not lint */
 
 #include <stdio.h>
@@ -53,17 +53,13 @@ res_mkquery(op, dname, class, type, data, datalen, newrr, buf, buflen)
        /*
         * Initialize header fields.
         */
+       bzero(buf, sizeof(HEADER));
        hp = (HEADER *) buf;
        hp->id = htons(++_res.id);
        hp->opcode = op;
-       hp->qr = hp->aa = hp->tc = hp->ra = 0;
        hp->pr = (_res.options & RES_PRIMARY) != 0;
        hp->rd = (_res.options & RES_RECURSE) != 0;
        hp->rcode = NOERROR;
-       hp->qdcount = 0;
-       hp->ancount = 0;
-       hp->nscount = 0;
-       hp->arcount = 0;
        cp = buf + sizeof(HEADER);
        buflen -= sizeof(HEADER);
        dpp = dnptrs;