actube/src/cw/sock_getifaddr.c

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/*
This file is part of libcapwap.
libcapwap 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 3 of the License, or
(at your option) any later version.
libcapwap 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <ifaddrs.h>
#include "sock.h"
int sock_getifaddr(const char * ifname,int family, int type,struct sockaddr * sa)
{
struct ifaddrs *ifap,*ifa;
int rc;
if ( getifaddrs(&ifap)==-1)
return 0;
rc = 0;
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
if (strcmp(ifname,ifa->ifa_name))
continue;
if (ifa->ifa_addr == NULL)
continue;
if (ifa->ifa_addr->sa_family != family)
continue;
if (type != 0)
if (!(ifa->ifa_flags & type))
continue;
switch (type){
case 0:
memcpy (sa, ifa->ifa_addr, sock_addrlen(ifa->ifa_addr));
rc=1;
break;
/* case IFF_BROADCAST:
// memcpy (sa, ifa->ifa_broadaddr, sock_addrlen(ifa->ifa_addr));
// rc=1;
// break;
*/ default:
break;
}
/* rc=1;*/
break;
}
/* printf("safam: %i\n",sa->sa_family);*/
freeifaddrs(ifap);
return rc;
}