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      1  1.3  christos /*	$NetBSD: h_errno.c,v 1.3 2008/06/21 20:41:48 christos Exp $	*/
      2  1.1  christos 
      3  1.1  christos /*-
      4  1.1  christos  * Copyright (c) 2004 The NetBSD Foundation, Inc.
      5  1.1  christos  * All rights reserved.
      6  1.1  christos  *
      7  1.1  christos  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1  christos  * by Christos Zoulas.
      9  1.1  christos  *
     10  1.1  christos  * Redistribution and use in source and binary forms, with or without
     11  1.1  christos  * modification, are permitted provided that the following conditions
     12  1.1  christos  * are met:
     13  1.1  christos  * 1. Redistributions of source code must retain the above copyright
     14  1.1  christos  *    notice, this list of conditions and the following disclaimer.
     15  1.1  christos  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1  christos  *    notice, this list of conditions and the following disclaimer in the
     17  1.1  christos  *    documentation and/or other materials provided with the distribution.
     18  1.1  christos  *
     19  1.1  christos  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1  christos  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1  christos  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1  christos  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1  christos  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1  christos  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1  christos  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1  christos  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1  christos  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1  christos  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1  christos  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1  christos  */
     31  1.1  christos 
     32  1.1  christos #include <sys/cdefs.h>
     33  1.1  christos #if defined(LIBC_SCCS) && !defined(lint)
     34  1.3  christos __RCSID("$NetBSD: h_errno.c,v 1.3 2008/06/21 20:41:48 christos Exp $");
     35  1.1  christos #endif
     36  1.1  christos 
     37  1.1  christos #include <sys/types.h>
     38  1.1  christos #include <arpa/inet.h>
     39  1.1  christos #include <arpa/nameser.h>
     40  1.1  christos #include <resolv.h>
     41  1.1  christos #include <netdb.h>
     42  1.1  christos 
     43  1.1  christos #undef h_errno
     44  1.1  christos 
     45  1.1  christos extern int h_errno;
     46  1.3  christos extern struct __res_state _nres;
     47  1.3  christos 
     48  1.3  christos int *
     49  1.3  christos __h_errno(void)
     50  1.3  christos {
     51  1.3  christos 	return &_nres.res_h_errno;
     52  1.3  christos }
     53  1.1  christos 
     54  1.1  christos void
     55  1.1  christos __h_errno_set(res_state res, int err)
     56  1.1  christos {
     57  1.1  christos 	h_errno = res->res_h_errno = err;
     58  1.1  christos }
     59