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-rw-r--r--bin/wake.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/bin/wake.c b/bin/wake.c
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--- /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;
+}