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/*
* Copyright (c) 1983, 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. 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <errno.h>
#include <ifaddrs.h>
#include <string.h>
#include <strings.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
static const struct sockaddr_in NULL_SIN;
static int
inet_prefixlen(const struct in_addr *addr)
{
int x;
x = ffs(ntohl(addr->s_addr));
return (x == 0 ? 0 : 33 - x);
}
int
ifconfig_inet_get_addrinfo(ifconfig_handle_t *h __unused,
const char *name __unused, struct ifaddrs *ifa,
struct ifconfig_inet_addr *addr)
{
bzero(addr, sizeof(*addr));
/* Set the address */
if (ifa->ifa_addr == NULL) {
return (-1);
} else {
addr->sin = (struct sockaddr_in *)ifa->ifa_addr;
}
/* Set the destination address */
if (ifa->ifa_flags & IFF_POINTOPOINT) {
if (ifa->ifa_dstaddr) {
addr->dst = (struct sockaddr_in *)ifa->ifa_dstaddr;
} else {
addr->dst = &NULL_SIN;
}
}
/* Set the netmask and prefixlen */
if (ifa->ifa_netmask) {
addr->netmask = (struct sockaddr_in *)ifa->ifa_netmask;
} else {
addr->netmask = &NULL_SIN;
}
addr->prefixlen = inet_prefixlen(&addr->netmask->sin_addr);
/* Set the broadcast */
if (ifa->ifa_flags & IFF_BROADCAST) {
addr->broadcast = (struct sockaddr_in *)ifa->ifa_broadaddr;
}
/* Set the vhid */
if (ifa->ifa_data) {
addr->vhid = ((struct if_data *)ifa->ifa_data)->ifi_vhid;
}
return (0);
}
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