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  1. #include <ipc.h>
  2. #include <stdio.h>
  3. #include <unistd.h>
  4. #include <stdlib.h>
  5. #include <ns.h>
  6. #include <errno.h>
  7.  
  8. static int service;
  9.  
  10. int main(int argc, char **argv)
  11. {
  12.     ipc_call_t call;
  13.     ipc_callid_t callid;
  14.    
  15.     ipcarg_t retval, arg1, arg2;
  16.  
  17.     printf("Name service started.\n");
  18.     while (1) {
  19.         callid = ipc_wait_for_call(&call, 0);
  20.         printf("Received call from: %P..%Q\n", &call.taskid,call.taskid);
  21.         switch (IPC_GET_METHOD(call.data)) {
  22.         case IPC_M_CONNECTTOME:
  23.             printf("Somebody wants to connect with phoneid %d...accepting\n", IPC_GET_ARG3(call.data));
  24.             service = IPC_GET_ARG3(call.data);
  25.             retval = 0;
  26.             break;
  27.         case IPC_M_CONNECTMETO:
  28.             printf("Somebody wants to connect to: %d\n",
  29.                    IPC_GET_ARG1(call.data));
  30.             retval = 0;
  31.             break;
  32.         case NS_PING:
  33.             printf("Ping...%P %P\n", IPC_GET_ARG1(call.data),
  34.                    IPC_GET_ARG2(call.data));
  35.             retval = 0;
  36.             arg1 = 0xdead;
  37.             arg2 = 0xbeef;
  38.             break;
  39.         case NS_PING_SVC:
  40.             printf("Pinging service %d\n", service);
  41.             ipc_call_sync(service, NS_PING, 0xbeef, 0);
  42.             printf("Got pong\n");
  43.             break;
  44.         default:
  45.             printf("Unknown method: %d\n", IPC_GET_METHOD(call.data));
  46.             retval = ENOENT;
  47.             break;
  48.         }
  49.         ipc_answer(callid, retval, arg1, arg2);
  50.     }
  51. }
  52.