Write relay message to the network

src/main.zig

@@ -189,6 +189,10 @@ pub fn main(init: std.process.Init) !void {
     };
 
     std.debug.print("full message = {any}\n", .{full_msg});
+
+    var socket: RawSocket = try .init("enp7s0");
+    defer socket.deinit();
+    try socket.send(full_msg);
 }
 
 fn parseDest(in: ?[]const u8) [4]u8 {
@@ -222,7 +226,7 @@ const RawSocket = struct {
     fd: i32,
     sockaddr_ll: std.posix.sockaddr.ll,
 
-    fn init(ifname: []const u8) RawSocket {
+    fn init(ifname: []const u8) !RawSocket {
         const socket: i32 = @intCast(std.os.linux.socket(AF.PACKET, SOCK.RAW, 0));
 
         var ifr: std.posix.ifreq = std.mem.zeroInit(std.posix.ifreq, .{});
@@ -265,7 +269,9 @@ const RawSocket = struct {
         };
     }
 
-    fn deinit() void {}
+    fn deinit(self: *RawSocket) void {
+        _ = self;
+    }
 
     fn send(self: RawSocket, payload: []const u8) !void {
         const sent_bytes = std.os.linux.sendto(