refactor: network - harden TCP/IP and unify HTTP clients

kernel/src/Ipc/Ipc.cpp

@@ -1382,7 +1382,8 @@ namespace Ipc {
         Net::Tcp::Connection* conn = socket->tcpConn;
         socket->socketLock.Release();
         if (conn == nullptr) return -1;
-        return Net::Tcp::Send(conn, data, (uint16_t)len);
+        if (len > 0x7FFFFFFFu) return -1;
+        return Net::Tcp::Send(conn, data, len);
     }
 
     int SocketRecvHandle(int handle, uint8_t* buffer, uint32_t maxLen) {
@@ -1399,13 +1400,15 @@ namespace Ipc {
         socket->socketLock.Release();
         if (conn == nullptr) return -1;
 
-        int result = Net::Tcp::ReceiveNonBlocking(conn, buffer, (uint16_t)maxLen);
+        uint16_t cappedLen = maxLen > 0xFFFFu ? 0xFFFFu : (uint16_t)maxLen;
+        int result = Net::Tcp::ReceiveNonBlocking(conn, buffer, cappedLen);
         if (result != 0) NotifyObjectChanged((Object*)socket);
         return result;
     }
 
     int SocketSendToHandle(int handle, const uint8_t* data, uint32_t len, uint32_t destIp, uint16_t destPort) {
         if (data == nullptr) return -1;
+        if (len > 1472) return -1;
         if (len > 0 && !montauk::abi::UserMemory::Range((uint64_t)data, len, false)) return -1;
 
         Socket* socket = nullptr;