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/*
* $Id: getfullhostname.c,v 1.20 2003/01/23 00:37:01 robertc Exp $
*
* DEBUG:
* AUTHOR: Harvest Derived
*
* SQUID Web Proxy Cache http://www.squid-cache.org/
* ----------------------------------------------------------
*
* Squid is the result of efforts by numerous individuals from
* the Internet community; see the CONTRIBUTORS file for full
* details. Many organizations have provided support for Squid's
* development; see the SPONSORS file for full details. Squid is
* Copyrighted (C) 2001 by the Regents of the University of
* California; see the COPYRIGHT file for full details. Squid
* incorporates software developed and/or copyrighted by other
* sources; see the CREDITS file for full details.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
*/
#include "config.h"
#if HAVE_LIBC_H
#include <libc.h>
#endif
#if HAVE_STDIO_H
#include <stdio.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#endif
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#if HAVE_NETDB_H && !defined(_SQUID_NETDB_H_) /* protect on NEXTSTEP */
#define _SQUID_NETDB_H_
#include <netdb.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "util.h"
/*
* getfullhostname() - Returns the fully qualified name of the current
* host, or NULL on error. Pointer is only valid until the next call
* to the gethost*() functions.
*/
const char *
getfullhostname(void)
{
const struct hostent *hp = NULL;
static char buf[SQUIDHOSTNAMELEN + 1];
if (gethostname(buf, SQUIDHOSTNAMELEN) < 0)
return NULL;
if ((hp = gethostbyname(buf)) != NULL)
xstrncpy(buf, hp->h_name, SQUIDHOSTNAMELEN);
return buf;
}
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