diff options
Diffstat (limited to 'bin/wake.c')
-rw-r--r-- | bin/wake.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/bin/wake.c b/bin/wake.c new file mode 100644 index 00000000..82fa2e6b --- /dev/null +++ b/bin/wake.c @@ -0,0 +1,54 @@ +/* Copyright (C) 2017 June McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <sys/types.h> + +#include <err.h> +#include <netinet/in.h> +#include <stdlib.h> +#include <sys/socket.h> +#include <sysexits.h> + +typedef unsigned char byte; + +#define MAC 0x04, 0x7D, 0x7B, 0xD5, 0x6A, 0x53 +static const byte Payload[102] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, + MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, +}; + +int main() { + int sock = socket(PF_INET, SOCK_DGRAM, 0); + if (sock < 0) err(EX_OSERR, "socket"); + + int on = 1; + int error = setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)); + if (error) err(EX_OSERR, "setsockopt"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = 9, + .sin_addr.s_addr = INADDR_BROADCAST, + }; + ssize_t size = sendto( + sock, Payload, sizeof(Payload), 0, + (struct sockaddr *)&addr, sizeof(addr) + ); + if (size < 0) err(EX_IOERR, "sendto"); + + return EX_OK; +} |