/*
 ******************************************************************************
 *                     INTERPEAK CONFIGURATION SOURCE FILE
 *
 *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipdnsc_config.c,v $ $Revision: 1.12 $
 *   $Source: /home/interpeak/CVSRoot/ipappl/config/ipdnsc_config.c,v $
 *   $Author: jren $
 *   $State: Exp $ $Locker:  $
 *
 *   INTERPEAK_COPYRIGHT_STRING
 ******************************************************************************
 */

/*
modification history
--------------------
01j,03Aug10,rjq  New file for Networking Configuration VSB restructuring.
01i,11sep07,dlk  Change parameter names for tertiary and quaternary name
                 servers to match those used in 00comp_ipnet_apps.cdf.
01h,28feb07,dlk  Replace _gethostbyname, _gethostbyaddr function pointers
                 with reentrant versions _ipcom_gethostbyname_r,
		 _ipcom_gethostbyaddr_r.
01g,03jan07,kch  Updated CVS revision log entry for Jan 03 code drop.
01f,01dec06,kch  Added support for additional configuration parameters.
01e,13sep06,kch  Refresh with Sept 08, 2006 code drop
01d,28aug06,kch  Corrected ipcom_gethostbyaddr() prototype declaration.
01c,28aug06,tkf  Remove dependency on hostLib.
01b,23aug06,tkf  Add a call to gethostbynameInit() and gethostbynameInit()
01a,03aug06,kch  Renamed INCLUDE_NSLOOKUP_CMD to INCLUDE_IPNSLOOKUP_CMD.
*/

/*
 ****************************************************************************
 * 1                    DESCRIPTION
 ****************************************************************************
 * DNS client configuration.
 */

/*
 ****************************************************************************
 * 2                    INCLUDE FILES
 ****************************************************************************
 */

#include <ipcom_type.h>
#include <ipcom_cstyle.h>
#include <ipcom_err.h>
#include <ipcom_sysvar.h>
#include <ipcom_shell.h>
#include <ipcom_sock2.h>


/*
 ****************************************************************************
 * 3                    DEFINES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 4                    TYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 5                    EXTERN PROTOTYPES
 ****************************************************************************
 */
#if defined(INCLUDE_IPNSLOOKUP_CMD) || !defined(IP_WB_BUILD)
IP_EXTERN int ipdnsc_cmd_nslookup(int argc, char **argv);
#endif

#if	defined(IP_WB_BUILD)
IP_EXTERN FUNCPTR _ipcom_gethostbyname_r;
IP_EXTERN FUNCPTR _ipcom_gethostbyaddr_r;
#endif

/*
 ****************************************************************************
 * 6                    LOCAL PROTOTYPES
 ****************************************************************************
 */

IP_PUBLIC Ip_err ipdnsc_configure(void);


/*
 ****************************************************************************
 * 7                    DATA
 ****************************************************************************
 */

/*
 *===========================================================================
 *                         ipdnsc_conf_sysvar
 *===========================================================================
 * DNS Client Configuration Variables
 */
IP_CONST Ipcom_sysvar ipdnsc_conf_sysvar[] =
{
	/* DNS server listening port */
	IP_SYSVAR( "ipdnsc.port", "53", DNSC_SERVER_PORT),

	/* Timeout in seconds when waiting for responses to DNS queries */
	IP_SYSVAR( "ipdnsc.timeout", "3", DNSC_TIMEOUT),

	/* Number of retries for DNS queries */
	IP_SYSVAR( "ipdnsc.retries", "1", DNSC_RETRIES),

	/* DNS domain name */
	IP_SYSVAR( "ipdnsc.domainname", "interpeak.se", DNSC_DOMAIN_NAME),

	/* DNS primary name server */
	IP_SYSVAR( "ipdnsc.primaryns", "", DNSC_PRIMARY_NAME_SERVER),

	/* DNS secondary name server */
	IP_SYSVAR( "ipdnsc.secondaryns", "", DNSC_SECONDARY_NAME_SERVER),

	/* DNS tertiary name server */
	IP_SYSVAR( "ipdnsc.tertiaryns",  "", DNSC_TERTIARY_NAME_SERVER),

	/* DNS quaternary name server */
	IP_SYSVAR( "ipdnsc.quaternaryns", "", DNSC_QUATERNARY_NAME_SERVER),

	/* Zone for ipv4 address to name lookups */
	IP_SYSVAR( "ipdnsc.ip4.zone", "in-addr.arpa",  DNSC_IP4_ZONE),

    /* Zone for ipv6 address to name lookups */
    IP_SYSVAR( "ipdnsc.ip6.zone", "ip6.int",  DNSC_IP6_ZONE),     /* RFC1886: "ip6.int" RFC3152: "ip6.arpa" */

	{ IP_NULL, IP_NULL }
};


/*
 ****************************************************************************
 * 8                   STATIC FUNCTIONS
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 9                   GLOBAL FUNCTIONS
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 10                  PUBLIC FUNCTIONS
 ****************************************************************************
 */

/*
 *===========================================================================
 *                    ipdnsc_configure
 *===========================================================================
 * Description: Configure DNS client.
 * Parameters:  None.
 * Returns:     IPCOM_SUCCESS or IPCOM_ERR_XXX if failed.
 */
IP_PUBLIC Ip_err
ipdnsc_configure(void)
{
    Ip_err ret;

    ret = ipcom_sysvar_setv(ipdnsc_conf_sysvar, 0);
    if(ret != IPCOM_SUCCESS)
        return ret;

#if	defined(IP_WB_BUILD)
    /* Initialize _gethostby* func pointers */
    _ipcom_gethostbyname_r = (FUNCPTR)ipcom_gethostbyname_r;
    _ipcom_gethostbyaddr_r = (FUNCPTR)ipcom_gethostbyaddr_r;
#endif

#if defined(INCLUDE_IPNSLOOKUP_CMD) || !defined(IP_WB_BUILD)
    ret = ipcom_shell_add_cmd("nslookup", "nslookup [ options ] <modifier...>",
                              "Query Internet name servers interactively",
                               ipdnsc_cmd_nslookup,
                               IPCOM_SHELL_PRIO_SAME, IPCOM_PROC_STACK_DEFAULT);
#endif

    return ret;
}


/*
 ****************************************************************************
 *                      END OF FILE
 ****************************************************************************
 */