Remove ktor-network dependency use native socket

src/appleMain/kotlin/cn/rtast/nmdns/socket.apple.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright © 2025 RTAkland
+ * Author: RTAkland
+ * Date: 9/30/25
+ */
+
+
+@file:OptIn(ExperimentalForeignApi::class)
+@file:Suppress("unused")
+
+package cn.rtast.nmdns
+
+import kotlinx.cinterop.*
+import platform.darwin.inet_addr
+import platform.posix.*
+
+public actual class Socket1 internal actual constructor() {
+    /**
+     * socket fd
+     */
+    private var socket: Int = -1
+
+    public actual fun bind(ip: String, port: Int): Socket1 {
+        socket = socket(AF_INET, SOCK_DGRAM, 0)
+        if (socket < 0) perror("Failed to create udp socket")
+        memScoped {
+            val reuse = alloc<IntVar>()
+            reuse.value = 1
+            if (setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, reuse.ptr, sizeOf<IntVar>().convert()) < 0) {
+                perror("Failed to setsocketopt SO_REUSEADDR")
+            }
+        }
+        memScoped {
+            val addr = alloc<sockaddr_in>()
+            addr.sin_family = AF_INET.convert()
+            addr.sin_port = htons(port.toUShort())
+            addr.sin_addr.s_addr = htonl(INADDR_ANY)
+            if (bind(socket, addr.ptr.reinterpret(), sizeOf<sockaddr_in>().convert()) < 0) {
+                perror("Failed to bind")
+                close(socket)
+            }
+        }
+        memScoped {
+            val mreq = alloc<ip_mreq>()
+            mreq.imr_multiaddr.s_addr = inet_addr("224.0.0.251")
+            mreq.imr_interface.s_addr = htonl(INADDR_ANY)
+            if (setsockopt(socket, IPPROTO_TP, IP_ADD_MEMBERSHIP, mreq.ptr, sizeOf<ip_mreq>().convert()) < 0) {
+                perror("setsockopt IP_ADD_MEMBERSHIP")
+            }
+        }
+
+        return this
+    }
+
+    public actual fun send(packet: ByteArray) {
+        memScoped {
+            val addr = alloc<sockaddr_in>()
+            addr.sin_family = AF_INET.convert()
+            addr.sin_port = htons(5353u)
+            addr.sin_addr.s_addr = inet_addr("224.0.0.251")
+            val cbuf = packet.refTo(0).getPointer(this)
+            sendto(socket, cbuf, packet.size.convert(), 0, addr.ptr.reinterpret(), sizeOf<sockaddr_in>().convert())
+        }
+    }
+
+    public actual fun destroy() {
+        close(socket)
+    }
+}