/* args: yiaddr - what IP to ping (eg. on the NETtel cb189701)
* retn: 1 addr free
* 0 addr used
* -1 error
*/
int arpping(u_int32_t yiaddr, u_int32_t ip, char *arp, char *interface) {
struct ifinfo ifbuf;
strcpy(ifbuf.ifname, interface);
ifbuf.addr = ip;
ifbuf.mask = 0x0;
ifbuf.bcast = 0x0;
memcpy(ifbuf.haddr, arp, 6);
ifbuf.flags = 0;
return arpCheck(yiaddr, &ifbuf, 2);
}
int arpping(SrvInfo *psrvInfo) {
struct ifinfo ifbuf;
strcpy(ifbuf.ifname, psrvInfo->iface);
ifbuf.addr = psrvInfo->ipSrv.s_addr;
ifbuf.mask = 0x0;
ifbuf.bcast = 0x0;
memcpy(ifbuf.haddr, psrvInfo->macSrv, 6);
ifbuf.flags = 0;
return arpCheck(psrvInfo->id, psrvInfo->arp_ip, &ifbuf, 2, psrvInfo->arp_cip);
}
/* args: yiaddr - what IP to ping (eg. on the NETtel cb189701)
* retn: 1 addr free
* 0 addr used
* -1 error
*/
int arpping(u_int32_t yiaddr, u_int32_t ip, char *interface) {
struct ifinfo ifbuf;
int fd, ret;
struct ifreq ifr;
unsigned char sMac[6];
ret = 1; // default action is to assign the address
if((fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) {
LOG(LOG_ERR, "socket failed!");
return ret;
}
ifr.ifr_addr.sa_family = AF_INET;
strcpy(ifr.ifr_name, interface);
/* Retrieve MAC of the interface */
if (ioctl(fd, SIOCGIFHWADDR, &ifr) == 0) {
memcpy(sMac, ifr.ifr_hwaddr.sa_data, 6);
close(fd);
}
else
{
close(fd);
return ret;
}
strcpy(ifbuf.ifname, interface);
ifbuf.addr = ip;
ifbuf.mask = 0x0;
ifbuf.bcast = 0x0;
memcpy(ifbuf.haddr, sMac, 6);
ifbuf.flags = 0;
return arpCheck(yiaddr, &ifbuf, 2);
}
