source: network-demos/dnstest/test.c @ 389195e

/*
 * Test RTEMS networking
 *
 * This program may be distributed and used for any purpose.
 * I ask only that you:
 *      1. Leave this author information intact.
 *      2. Document any changes you make.
 *
 * W. Eric Norum
 * Saskatchewan Accelerator Laboratory
 * University of Saskatchewan
 * Saskatoon, Saskatchewan, CANADA
 * eric@skatter.usask.ca
 *
 *  $Id$
 */

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <rtems.h>
#include <rtems/rtems_bsdnet.h>
#include <rtems/error.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>

/*
 * Show network-related statistics
 */
static void
showStatistics (void)
{
        rtems_bsdnet_show_inet_routes ();
        rtems_bsdnet_show_mbuf_stats ();
        rtems_bsdnet_show_if_stats ();
        rtems_bsdnet_show_ip_stats ();
        rtems_bsdnet_show_icmp_stats ();
        rtems_bsdnet_show_udp_stats ();
        rtems_bsdnet_show_tcp_stats ();
}

/*
 * Show host information
 */
static void
showhost (struct hostent *hp)
{
        char **ap;
        struct in_addr in;

        if (hp == NULL) {
                printf ("Host information not available.\n");
                return;
        }
        printf ("Official name: %s\n", hp->h_name);
        ap = hp->h_aliases;
        if (ap && *ap) {
                printf ("Alias%s:\n", ap[1] ? "es" : "");
                while (*ap)
                        printf ("    %s\n", *ap++);
        }
        if ((hp->h_addrtype == AF_INET) && (hp->h_length == sizeof in)) {
                ap = hp->h_addr_list;
                if (ap && *ap) {
                        printf ("Address%s:", ap[1] ? "es" : "");
                        while (*ap) {
                                memcpy (&in, *ap++, sizeof in);
                                printf (" %s", inet_ntoa (in));
                        }
                        printf ("\n");
                }
        }
        else {
                printf ("Address type: %d\n", hp->h_addrtype);
                printf ("Address length: %d\n", hp->h_length);
        }
}

/*
 * Test Domain Name Servers
 */
void
testDNS (void)
{
        char namebuf[100];
        char *name, *cp;
        struct hostent *hp;

        for (;;) {
                printf ("\nhost? ");
                if (fgets (namebuf, sizeof namebuf, stdin) == NULL)
                        return;
                cp = namebuf;
                while (isspace ((int) *cp))
                        cp++;
                if (cp[0] == '\0') {
                        showStatistics ();
                        continue;
                }
                name = cp;
                while (isgraph ((int) *cp))
                        cp++;
                *cp = '\0';
                if (isdigit((int) *name)) {
                        struct in_addr addr;

                        addr.s_addr = inet_addr (name);
                        hp = gethostbyaddr ((char *)&addr, sizeof addr, AF_INET);
                }
                else {
                        hp = gethostbyname (name);
                }
                showhost (hp);
        }
}