/* xsh_netinfo.c - xsh_netinfo */

#include 
#include 
#include 

/*------------------------------------------------------------------------
 * xsh_netinfo - obtain and print the IP address, subnet mask, default
 *                      router address and other network information
 *------------------------------------------------------------------------
 */
shellcmd xsh_netinfo(int nargs, char *args[]) {

        uint32  ipaddr;                 /* An IP address in binary      */
        uint32  ipbcast;                /* IP broadcast addr. in binary */
        uint32  ipprefix;               /* IP network prefix in binary  */
        uint32  router;                 /* Router address in binary     */
        uint32  tserver;                /* NTP server address in binary */
        uint32  dserver;                /* DNS server address in binary */
        char    str[40];                /* Temporary used for formatting*/
        uint32  ipmask;                 /* Subnet mask in binary        */

        /* Output info for '--help' argument */

        if (nargs == 2 && strncmp(args[1], "--help", 7) == 0) {
                printf("Usage: %s\n\n", args[0]);
                printf("Description:\n");
                printf("\tDisplays IP address information\n");
                printf("Options:\n");
                printf("\t-f\tforce a new DHCP request\n");
                printf("\t--help\tdisplay this help and exit\n");
                return OK;
        }

        /* Check argument count */

        if (nargs > 2) {
                fprintf(stderr, "%s: too many arguments\n", args[0]);
                fprintf(stderr, "Try '%s --help' for more information\n",
                        args[0]);
                return SYSERR;
        }

        if (nargs == 2) {
                if (strncmp(args[1], "-f", 3) != 0) {
                        fprintf(stderr, "%s: invalid argument\n", args[0]);
                        fprintf(stderr,
                                "Try '%s --help' for more information\n",
                                args[0]);
                        return 1;
                }
                NetData.ipvalid = FALSE;
                getlocalip();
        }


        /* IP unicast address in dotted decimal and hex */

        ipaddr = NetData.ipucast;
        sprintf(str, "%d.%d.%d.%d",
                (ipaddr>>24)&0xff, (ipaddr>>16)&0xff,
                (ipaddr>>8)&0xff,        ipaddr&0xff);
        printf("   %-16s  %-16s  0x%08x\n",
                "IP address:", str, ipaddr);

        /* IP network broadcast address in dotted decimal & hex */

        ipbcast = NetData.ipbcast;
        sprintf(str, "%d.%d.%d.%d",
                (ipbcast>>24)&0xff, (ipbcast>>16)&0xff,
                (ipbcast>>8)&0xff,        ipbcast&0xff);
        printf("   %-16s  %-16s  0x%08x\n",
                "IP broadcast:", str, ipbcast);

        /* IP network prefix in dotted decimal & hex */

        ipprefix = NetData.ipprefix;
        sprintf(str, "%d.%d.%d.%d",
                (ipprefix>>24)&0xff, (ipprefix>>16)&0xff,
                (ipprefix>>8)&0xff,        ipprefix&0xff);
        printf("   %-16s  %-16s  0x%08x\n",
                "IP prefix:", str, ipprefix);

        /* IP network mask in dotted decimal & hex */

        ipmask = NetData.ipmask;
        ipaddr = NetData.ipucast;
        sprintf(str, "%d.%d.%d.%d",
                (ipmask>>24)&0xff, (ipmask>>16)&0xff,
                (ipmask>>8)&0xff,        ipmask&0xff);
        printf("   %-16s  %-16s  0x%08x\n",
                "Address mask:", str, ipmask);

        /* Default router in dotted decimal & hex */

        router = NetData.iprouter;
        sprintf(str, "%d.%d.%d.%d",
                (router>>24)&0xff, (router>>16)&0xff,
                (router>>8)&0xff,        router&0xff);
        printf("   %-16s  %-16s  0x%08x\n",
                "IP router:", str, router);

        /* NTP time server in dotted decimal & hex */

        tserver = NetData.ntpserver;
        if (tserver != 0) {
                sprintf(str, "%d.%d.%d.%d",
                        (tserver>>24)&0xff, (tserver>>16)&0xff,
                        (tserver>>8)&0xff,        tserver&0xff);
                printf("   %-16s  %-16s  0x%08x\n",
                        "NTP time server:", str, tserver);
        }

        /* DNS server in dotted decimal & hex */

        dserver = NetData.dnsserver;
        if (dserver != 0) {
                sprintf(str, "%d.%d.%d.%d",
                        (dserver>>24)&0xff, (dserver>>16)&0xff,
                        (dserver>>8)&0xff,        dserver&0xff);
                printf("   %-16s  %-16s  0x%08x\n",
                        "DNS server:", str, dserver);
        }

        printf("   %-16s  %02x:%02x:%02x:%02x:%02x:%02x\n",
        "MAC unicast:",
        0xff & NetData.ethucast[0],
        0xff & NetData.ethucast[1],
        0xff & NetData.ethucast[2],
        0xff & NetData.ethucast[3],
        0xff & NetData.ethucast[4],
        0xff & NetData.ethucast[5]);

        printf("   %-16s  %02x:%02x:%02x:%02x:%02x:%02x\n",
        "MAC broadcast:",
        0xff & NetData.ethbcast[0],
        0xff & NetData.ethbcast[1],
        0xff & NetData.ethbcast[2],
        0xff & NetData.ethbcast[3],
        0xff & NetData.ethbcast[4],
        0xff & NetData.ethbcast[5]);

        return OK;
}