1 /* vi: set sw=4 ts=4: */
3 * clientsocket.c -- DHCP client socket creation
7 * Russ Dill <Russ.Dill@asu.edu> July 2001
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
26 #include <netpacket/packet.h>
27 #include <net/ethernet.h>
29 #include <asm/types.h>
30 #include <linux/if_packet.h>
31 #include <linux/if_ether.h>
37 int raw_socket(int ifindex)
40 struct sockaddr_ll sock;
42 DEBUG("Opening raw socket on ifindex %d", ifindex);
43 fd = xsocket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
45 sock.sll_family = AF_PACKET;
46 sock.sll_protocol = htons(ETH_P_IP);
47 sock.sll_ifindex = ifindex;
48 xbind(fd, (struct sockaddr *) &sock, sizeof(sock));