source: network-demos/rpc_demo/rprintmsg.c @ 0fe6b0d

/*
 * This client runs on the RTEMS target or on the host machine.
 *
 *      W. Eric Norum
 *      eric@cls.usask.ca
 */
#include <stdio.h>
#include <rpc/rpc.h>
#include <netdb.h>
#include "msg.h"

int
main (int argc, char **argv)
{
        struct hostent *hp;
        struct sockaddr_in farAddr;
        int sock = -1;
        CLIENT *c1;
        int *result;
        char *server;
        char *message;
        int itmp;

        /*
         * Process arguments
         */
        if (argc != 3) {
                fprintf (stderr, "Usage: %s server message\n", argv[0]);
                return 1;
        }
        server = argv[1];
        message = argv[2];
        hp = gethostbyname (server);
        if (hp == NULL) {
                fprintf (stderr, "No server %s\n", server);
                return 2;
        }

        /*
         * Set up server address
         */
        farAddr.sin_family = hp->h_addrtype;
        farAddr.sin_port = htons (TCP_PORT);
        memcpy((char*)&farAddr.sin_addr, hp->h_addr, hp->h_length);

        /*
         * Create connection to server
         */
        c1 = clnttcp_create (&farAddr, MESSAGEPROC, MESSAGEVERS, &sock, 0, 0);
        if (c1 == NULL) {
                clnt_pcreateerror (server);
                return 3;
        }

        /*
         * Call remote procedures
         */
        result = printmessage_1 (&message, c1);
        if (result == NULL) {
                clnt_perror (c1, server);
                return 4;
        }
        printf ("Printed %d characters on %s.\n", *result, server);

        itmp = 12;
        result = printnum_1 (&itmp, c1);
        if (result == NULL) {
                clnt_perror (c1, server);
                return 5;
        }
        printf ("Result is %d.\n", *result);

        return 0;
}