char *
pcap_ex_name(char *name)
{
#ifdef _WIN32
/*
* XXX - translate from libdnet logical interface name to
* WinPcap native interface name.
*/
static char pcap_name[256];
pcap_if_t *pifs, *pif;
char ebuf[128];
int idx, i = 0;
/* XXX - according to the WinPcap FAQ, no loopback support??? */
if (strncmp(name, "eth", 3) != 0 || sscanf(name+3, "%u", &idx) != 1 ||
_pcap_ex_findalldevs(&pifs, ebuf) == -1) {
return (name);
}
for (pif = pifs; pif != NULL; pif = pif->next) {
if (i++ == idx) {
strncpy(pcap_name, pif->name, sizeof(pcap_name)-1);
pcap_name[sizeof(pcap_name)-1] = '\0';
name = pcap_name;
break;
}
}
pcap_freealldevs(pifs);
return (name);
#else
return (name);
#endif
}
char *
pcap_ex_lookupdev(char *ebuf)
{
#ifdef _WIN32
pcap_if_t *pifs, *pif;
struct pcap_addr *pa;
char *name = NULL;
// Get all available devices.
if (_pcap_ex_findalldevs(&pifs, ebuf) == -1) {
return NULL;
}
// Get first not 0.0.0.0 or 127.0.0.1 device
for (pif = pifs; pif != NULL; pif = pif->next) {
for (pa = pif->addresses; pa != NULL; pa = pa->next) {
struct sockaddr_in *addrStruct = (struct sockaddr_in *)pa->addr;
u_long addr = addrStruct->sin_addr.S_un.S_addr;
if (addrStruct->sin_family == AF_INET &&
addr != 0 && // 0.0.0.0
addr != 0x100007f // 127.0.0.1
) {
name = pif->name;
break;
}
}
}
pcap_freealldevs(pifs);
return (name);
#else
return (pcap_lookupdev(ebuf));
#endif
}
char *
pcap_ex_lookupdev(char *ebuf)
{
#ifdef _WIN32
/* XXX - holy poo this sux */
static char _ifname[8];
MIB_IPADDRTABLE *ipaddrs;
DWORD i, dsz, outip;
pcap_if_t *pifs, *pif;
struct pcap_addr *pa;
char *name = NULL;
int idx;
/* Find our primary IP address. */
ipaddrs = malloc((dsz = sizeof(*ipaddrs)));
while (GetIpAddrTable(ipaddrs, &dsz, 0) == ERROR_INSUFFICIENT_BUFFER) {
free(ipaddrs);
ipaddrs = malloc(dsz);
}
outip = 0;
for (i = 0; i < ipaddrs->dwNumEntries; i++) {
if (ipaddrs->table[i].dwAddr != 0 &&
ipaddrs->table[i].dwAddr != 0x100007f
#if 0
/* XXX -no wType/MIB_IPADDR_PRIMARY in w32api/iprtrmib.h */
&& ipaddrs->table[i].unused2 & 0x01
#endif
) {
outip = ipaddrs->table[i].dwAddr;
break;
}
}
free(ipaddrs);
if (outip == 0) {
/* XXX - default to first Ethernet interface. */
return ("eth0");
}
/* Find matching pcap interface by IP. */
if (_pcap_ex_findalldevs(&pifs, ebuf) == -1)
return (name);
for (pif = pifs, idx = 0; pif != NULL && name == NULL;
pif = pif->next, idx++) {
for (pa = pif->addresses; pa != NULL; pa = pa->next) {
if (pa->addr->sa_family == AF_INET &&
((struct sockaddr_in *)pa->addr)->sin_addr.S_un.S_addr == outip) {
sprintf(_ifname, "eth%d", idx);
name = _ifname;
break;
}
}
}
pcap_freealldevs(pifs);
return (name);
#else
return (pcap_lookupdev(ebuf));
#endif
}
