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/*

 * Copyright (c) 1987, 1993

 *      The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by the University of

 *      California, Berkeley and its contributors.

 * 4. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

/*

 * Portions Copyright (c) 1996 by Internet Software Consortium.

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS

 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE

 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL

 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR

 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS

 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

 * SOFTWARE.

 */

#if defined(LIBC_SCCS) && !defined(lint)

static char sccsid[] = "@(#)herror.c    8.1 (Berkeley) 6/4/93";

static char rcsid[] = "$Id: herror.c,v 1.2 2001-09-27 12:01:53 chris Exp $";

#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>

#include <sys/uio.h>

#include <netdb.h>

#include <string.h>

#include <unistd.h>

const char *h_errlist[] = {

        "Resolver Error 0 (no error)",

        "Unknown host",                         /* 1 HOST_NOT_FOUND */

        "Host name lookup failure",             /* 2 TRY_AGAIN */

        "Unknown server error",                 /* 3 NO_RECOVERY */

        "No address associated with name",      /* 4 NO_ADDRESS */

};

int     h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };

int     h_errno;

/*

 * herror --

 *      print the error indicated by the h_errno value.

 */

void

herror(s)

        const char *s;

{

#if 0

        struct iovec iov[4];

        register struct iovec *v = iov;

        if (s && *s) {

                v->iov_base = (char *)s;

                v->iov_len = strlen(s);

                v++;

                v->iov_base = ": ";

                v->iov_len = 2;

                v++;

        }

        v->iov_base = (char *)hstrerror(h_errno);

        v->iov_len = strlen(v->iov_base);

        v++;

        v->iov_base = "\n";

        v->iov_len = 1;

        writev(STDERR_FILENO, iov, (v - iov) + 1);

#else

        /*

         * RTEMS: no writev yet

         */

        if (s && *s) {

                write (2, s, strlen (s));

                write (2, ": ", 2);

        }

        s = (char *)hstrerror(h_errno);

        write (2, s, strlen (s));

        write (2, "\n", 1);

#endif

}

const char *

hstrerror(err)

        int err;

{

        if (err < 0)

                return ("Resolver internal error");

        else if (err < h_nerr)

                return (h_errlist[err]);

        return ("Unknown resolver error");

}