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Sourcecode: dante version File versions

hstrerror.c

/* $Id: hstrerror.c,v 1.3 1999/05/13 16:35:55 karls Exp $ */

#ifdef HAVE_CONFIG_H
#include "autoconf.h"
#endif  /* HAVE_CONFIG_H */

#include "common.h"

#if !HAVE_HSTRERROR

/*    $OpenBSD: herror.c,v 1.4 1997/03/13 19:07:28 downsj Exp $   */

/*
 * ++Copyright++ 1987, 1993
 * -
 * 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) 1993 by Digital Equipment Corporation.
 *
 * 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, and that
 * the name of Digital Equipment Corporation not be used in advertising or
 * publicity pertaining to distribution of the document or software without
 * specific, written prior permission.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
 * CORPORATION 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.
 * -
 * --Copyright--
 */

#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)herror.c      8.1 (Berkeley) 6/4/93";
static char rcsid[] = "$From: herror.c,v 8.3 1996/08/05 08:31:35 vixie Exp $";
#else
static char rcsid[] = "$OpenBSD: herror.c,v 1.4 1997/03/13 19:07:28 downsj Exp $";
#endif
#endif /* LIBC_SCCS and not lint */

#ifndef _COMMON_H_
#include <sys/types.h>
#include <sys/param.h>
#include <sys/uio.h>
#include <netdb.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif  /* HAVE_UNISTD_H */
#include <string.h>
#endif  /* !_COMMON_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] };

extern int  h_errno;

#if 0
/*
 * herror --
 *    print the error indicated by the h_errno value.
 */
void
herror(s)
      const char *s;
{
      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);
}
#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");
}

#else
static void avoid_error __P((void));
static void avoid_error()
{
      avoid_error();
}
#endif  /* !HAVE_HSTRERROR */

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