/* FUNCTION: netdiag_gratarp()
*
* Send a gratuitous ARP request/reply.
*
* PARAM1: CLI_CTX CLI context
*
* RETURN: int 0 or error code
*/
STATIC int
netdiag_gratarp(CLI_CTX ctx)
{
int idx;
int arpreq;
NET ifp;
if (!CLI_HELP(ctx))
{
if (!CLI_DEFINED(ctx, 'i'))
return (CLI_ERR_MISSING);
/* it is a gratuitous ARP request unless '-r' specified */
arpreq = (CLI_DEFINED(ctx, 'r')) ? 1 : 0;
idx = (int)CLI_VALUE(ctx, 'i') - 1;
if ((idx >= 0) && (idx < (int)ifNumber) && ((ifp = nets[idx]) != (NET)NULL))
{
int err = grat_arp(ifp, arpreq);
if (err != ENP_SEND_PENDING)
return (err);
}
else
return (CLI_ERR_PARAM);
}
return (0);
}
int
send_grat_arp(void * pio)
{
char * cp;
struct net * ifp;
int flag;
ifp = (NET)(netlist.q_head); /* default to first net */
cp = nextarg(((GEN_IO)pio)->inbuf); /* get console arg */
if(cp && *cp) /* arg is present on command line */
{
if (*cp == 'a')
flag = 0;
else
if (*cp == 'r')
flag = 1;
else
{
ns_printf(pio,"USAGE: sendarp (a|r) [net]\n");
return 0;
}
}
cp = nextarg(cp); /* get console arg */
if(cp && *cp) /* arg is present on command line */
{
ifp = if_netbytext(pio, cp);
if(ifp == NULL) /* error parsing iface name/number text? */
return -1;
}
grat_arp(ifp, flag);
return 0;
}
