52 open_socket(struct interface *iface, int protocol)  in open_socket()  argument
89 	strlcpy(ifr.ifr_name, iface->name, sizeof(ifr.ifr_name));  in open_socket()
96 	if (iface->buffer_size != (size_t)buf_len) {  in open_socket()
97 		free(iface->buffer);  in open_socket()
98 		iface->buffer_size = buf_len;  in open_socket()
99 		iface->buffer = xmalloc(buf_len);  in open_socket()
100 		iface->buffer_len = iface->buffer_pos = 0;  in open_socket()
113 		fdp = &iface->arp_fd;  in open_socket()
117 		fdp = &iface->raw_fd;  in open_socket()
131 	free(iface->buffer);  in open_socket()
132 	iface->buffer = NULL;  in open_socket()
138 send_raw_packet(const struct interface *iface, int protocol,  in send_raw_packet()  argument
153 		fd = iface->arp_fd;  in send_raw_packet()
155 		fd = iface->raw_fd;  in send_raw_packet()
162 get_raw_packet(struct interface *iface, int protocol,  in get_raw_packet()  argument
171 		fd = iface->arp_fd;  in get_raw_packet()
173 		fd = iface->raw_fd;  in get_raw_packet()
179 		if (iface->buffer_len == 0) {  in get_raw_packet()
180 			bytes = read(fd, iface->buffer, iface->buffer_size);  in get_raw_packet()
185 			iface->buffer_len = bytes;  in get_raw_packet()
186 			iface->buffer_pos = 0;  in get_raw_packet()
189 		memcpy(&packet, iface->buffer + iface->buffer_pos,  in get_raw_packet()
193 		if (iface->buffer_pos + packet.bh_caplen + packet.bh_hdrlen >  in get_raw_packet()
194 		    iface->buffer_len)  in get_raw_packet()
196 		payload = iface->buffer + packet.bh_hdrlen + ETHER_HDR_LEN;  in get_raw_packet()
202 		iface->buffer_pos += BPF_WORDALIGN(packet.bh_hdrlen +  in get_raw_packet()
204 		if (iface->buffer_pos >= iface->buffer_len)  in get_raw_packet()
205 			iface->buffer_len = iface->buffer_pos = 0;  in get_raw_packet()