rpc_createerr Global Variable

Purpose

Holds the status of a client-handle-creation subroutine for a remote procedure call (RPC).

Library

Network Services Library (libnsl.a)

Syntax

#include <rpc/rpc.h>

struct rpc_createerr rpc_createerr

Description

Whenever a client-creation subroutine fails, the subroutine sets the value of the rpc_createerr global variable to an appropriate error code. The clnt_pcreateerror and clnt_spcreateerror subroutines use this global variable to display the failure reason.

Note: For multithreaded applications, each thread has its own rpc_createerr variable.

Examples

In the following example, the rpc_createerr global variable is used to display the error code.

#include <stdlib.h>
#include <rpc/rpc.h>

int main()
{
     CLIENT *cl;
     rpcprog_t PROGNUM = 0x3fffffffL;
     rpcvers_t PROGVER = 0x1L;
     char *nettype = "visible";
     char hostname[255] ;      /* The name of remote host */

     /*
      * make the clnt_create call with this nettype and
      * observe the result
      */
     if ((cl=clnt_create( hostname, PROGNUM, PROGVER, nettype)) == NULL)
     {
          fprintf(stdout, "The error status : %d\n" , rpc_createerr.cf_stat);
          exit(EXIT_FAILURE);
     }

     /* destroy the client handle */
     clnt_destroy(cl);


     return 0;
}