1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
63 static int	wake(int bpf, const char *host);
69 	(void)fprintf(stderr, "usage: wake [interface] lladdr [lladdr ...]\n");  in usage()
74 wake(int bpf, const char *host)  in wake()  function
78 	if (get_ether(host, &macaddr) == -1)  in wake()
79 		return (-1);  in wake()
92 		return (-1);  in bind_if_to_bpf()
94 	if (ioctl(bpf, BIOCSETIF, &ifr) == -1)  in bind_if_to_bpf()
95 		return (-1);  in bind_if_to_bpf()
97 	if (ioctl(bpf, BIOCGDLT, &dlt) == -1)  in bind_if_to_bpf()
98 		return (-1);  in bind_if_to_bpf()
101 		return (-1);  in bind_if_to_bpf()
117 		return (-1);  in find_ether()
120 	for (nifs = 0, ifa = ifap; ifa; ifa = ifa->ifa_next)  in find_ether()
121 		if (ifa->ifa_addr->sa_family == AF_LINK &&  in find_ether()
122 		    ifa->ifa_flags & IFF_UP && ifa->ifa_flags & IFF_RUNNING) {  in find_ether()
123 			sdl = (struct sockaddr_dl *)ifa->ifa_addr;  in find_ether()
124 			if (sdl->sdl_type == IFT_ETHER) {  in find_ether()
125 				strlcpy(dst, ifa->ifa_name, len);  in find_ether()
131 	return (nifs == 1 ? 0 : -1);  in find_ether()
145 		warnx("no match for host %s found", text);  in get_ether()
146 		return (-1);  in get_ether()
168 		bcopy(addr->octet, p, ETHER_ADDR_LEN);  in send_wakeup()
173 		if ((bw = write(bpf, p, len)) == -1) {  in send_wakeup()
175 			return (-1);  in send_wakeup()
177 		len -= bw;  in send_wakeup()
192 	if ((bpf = open(_PATH_BPF, O_RDWR)) == -1)  in main()
196 	if (bind_if_to_bpf(argv[1], bpf) == -1) {  in main()
199 		if (bind_if_to_bpf(ifname, bpf) == -1)  in main()
201 		--n;  in main()
209 		if (wake(bpf, argv[n]) != 0) {  in main()
211 			warn("Cannot send Wake on LAN frame over `%s' to `%s'",  in main()