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authorRobby Zambito <contact@robbyzambito.me>2025-04-30 13:27:26 -0400
committerRobby Zambito <contact@robbyzambito.me>2025-04-30 14:43:19 -0400
commitb575ad90942bf6317ac60a2f48e36f54ecddac7a (patch)
tree7cd169e3d0c7e9d6e4299fad70ff557abbe2121d /src/Client.zig
parent73d0a8085112c491d5cfc42c997c67839658a4bc (diff)
Diffstat (limited to 'src/Client.zig')
-rw-r--r--src/Client.zig54
1 files changed, 27 insertions, 27 deletions
diff --git a/src/Client.zig b/src/Client.zig
index 070aaef..46ed75d 100644
--- a/src/Client.zig
+++ b/src/Client.zig
@@ -14,9 +14,10 @@ pub fn deinit() void {
network.deinit();
}
-fn broadcastSaprusMessage(msg: SaprusMessage, udp_port: u16, allocator: Allocator) !void {
- const msg_bytes = try msg.toBytes(allocator);
- defer allocator.free(msg_bytes);
+fn broadcastSaprusMessage(msg: *SaprusMessage, udp_port: u16) !void {
+ const msg_bytes = msg.asBytes();
+ try msg.networkFromNativeEndian();
+ defer msg.nativeFromNetworkEndian() catch unreachable;
var sock = try network.Socket.create(.ipv4, .udp);
defer sock.close();
@@ -40,14 +41,13 @@ fn broadcastSaprusMessage(msg: SaprusMessage, udp_port: u16, allocator: Allocato
}
pub fn sendRelay(payload: []const u8, dest: [4]u8, allocator: Allocator) !void {
- const msg = SaprusMessage{
- .relay = .{
- .header = .{ .dest = dest },
- .payload = payload,
- },
- };
+ const msg: *SaprusMessage = try .init(allocator, .relay, @intCast(payload.len));
+ defer msg.deinit(allocator);
+ const relay = (try msg.getSaprusTypePayload()).relay;
+ relay.dest = dest;
+ @memcpy(relay.getPayload(), payload);
- try broadcastSaprusMessage(msg, 8888, allocator);
+ try broadcastSaprusMessage(msg, 8888);
}
fn randomPort() u16 {
@@ -59,26 +59,25 @@ fn randomPort() u16 {
return p;
}
-pub fn sendInitialConnection(payload: []const u8, initial_port: u16, allocator: Allocator) !SaprusMessage {
+pub fn sendInitialConnection(payload: []const u8, initial_port: u16, allocator: Allocator) !*SaprusMessage {
const dest_port = randomPort();
- const msg = SaprusMessage{
- .connection = .{
- .header = .{
- .src_port = initial_port,
- .dest_port = dest_port,
- },
- .payload = payload,
- },
- };
+ const msg: *SaprusMessage = try .init(allocator, .connection, @intCast(payload.len));
+ defer msg.deinit(allocator);
+ const connection = (try msg.getSaprusTypePayload()).connection;
+ connection.src_port = initial_port;
+ connection.dest_port = dest_port;
+ @memcpy(connection.getPayload(), payload);
- try broadcastSaprusMessage(msg, 8888, allocator);
+ try broadcastSaprusMessage(msg, 8888);
return msg;
}
pub fn connect(payload: []const u8, allocator: Allocator) !?SaprusConnection {
- var foo: gcat.nic.RawSocket = try .init("enp7s0"); // /proc/net/dev
- defer foo.deinit();
+ if (false) {
+ var foo: gcat.nic.RawSocket = try .init("enp7s0"); // /proc/net/dev
+ defer foo.deinit();
+ }
var initial_port: u16 = 0;
if (rand) |r| {
@@ -86,7 +85,7 @@ pub fn connect(payload: []const u8, allocator: Allocator) !?SaprusConnection {
} else unreachable;
var initial_conn_res: ?SaprusMessage = null;
- errdefer if (initial_conn_res) |c| c.deinit(allocator);
+ errdefer if (initial_conn_res) |*c| c.deinit(allocator);
var sock = try network.Socket.create(.ipv4, .udp);
defer sock.close();
@@ -103,14 +102,15 @@ pub fn connect(payload: []const u8, allocator: Allocator) !?SaprusConnection {
const msg = try sendInitialConnection(payload, initial_port, allocator);
- var response_buf: [4096]u8 = undefined;
+ var response_buf: [4096]u8 align(4) = @splat(0);
_ = try sock.receive(&response_buf); // Ignore message that I sent.
const len = try sock.receive(&response_buf);
- initial_conn_res = try SaprusMessage.fromBytes(response_buf[0..len], allocator);
+ std.debug.print("response bytes: {x}\n", .{response_buf});
+ initial_conn_res = (try SaprusMessage.bytesAsValue(response_buf[0..len])).*;
// Complete handshake after awaiting response
- try broadcastSaprusMessage(msg, randomPort(), allocator);
+ try broadcastSaprusMessage(msg, randomPort());
if (false) {
return initial_conn_res.?;