ifaddrlist.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright 1997,2002-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1997
* 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
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory 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.
*
* @(#) $Header: ifaddrlist.c,v 1.2 97/04/22 13:31:05 leres Exp $ (LBL)
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <ctype.h>
#include <errno.h>
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libintl.h>
#include "ifaddrlist.h"
/*
* Construct the interface list with given address family.
* If it fails, returns -1 and an error message in *errbuf;
* otherwise, returns number of interfaces, and the interface list in *ipaddrp.
*/
int
{
int fd;
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
struct ifaddrlist *al;
struct ifaddrlist *ifaddrlist;
int lifc_flags = 0;
int count;
return (-1);
}
if (fd < 0) {
return (-1);
}
/* determine the number of interfaces */
return (-1);
}
/* allocate memory for the determined number of interfaces */
(size_t)sizeof (struct ifaddrlist));
if (ifaddrlist == NULL) {
return (-1);
}
return (-1);
}
/* pull out the interface list from the kernel */
return (-1);
}
/* LINTED */
al = ifaddrlist;
count = 0;
/* let's populate the interface entries in the ifaddrlist */
/*
* Need a template to preserve address info that is
* used below to locate the next entry. (Otherwise,
* SIOCGLIFFLAGS stomps over it because the requests
* are returned in a union.)
*/
continue;
}
"SIOCGLIFFLAGS: %.*s: %s",
return (-1);
}
/* get the interface address */
return (-1);
}
} else {
}
/* get the interface index */
return (-1);
}
++al;
++count;
}
*ipaddrp = ifaddrlist;
return (count);
}