static int getaddr(char *node, char *service,
struct fi_info *hints, uint64_t flags)
{
int ret;
struct fi_info *fi;
if (!node && !service) {
if (flags & FI_SOURCE) {
hints->src_addr = NULL;
hints->src_addrlen = 0;
} else {
hints->dest_addr = NULL;
hints->dest_addrlen = 0;
}
return 0;
}
ret = fi_getinfo(FT_FIVERSION, node, service, flags, hints, &fi);
if (ret) {
FT_PRINTERR("fi_getinfo", ret);
return ret;
}
hints->addr_format = fi->addr_format;
if (flags & FI_SOURCE) {
ret = dupaddr(&hints->src_addr, &hints->src_addrlen,
fi->src_addr, fi->src_addrlen);
} else {
ret = dupaddr(&hints->dest_addr, &hints->dest_addrlen,
fi->dest_addr, fi->dest_addrlen);
}
fi_freeinfo(fi);
return ret;
}
int ROKEN_LIB_FUNCTION
rk_getifaddrs(struct ifaddrs **ifpp)
{
SOCKET s = INVALID_SOCKET;
size_t il_len = 8192;
int ret = -1;
INTERFACE_INFO *il = NULL;
*ifpp = NULL;
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s == INVALID_SOCKET)
return -1;
for (;;) {
DWORD cbret = 0;
il = malloc(il_len);
if (!il)
break;
ZeroMemory(il, il_len);
if (WSAIoctl(s, SIO_GET_INTERFACE_LIST, NULL, 0,
(LPVOID) il, (DWORD) il_len, &cbret,
NULL, NULL) == 0) {
il_len = cbret;
break;
}
free (il);
il = NULL;
if (WSAGetLastError() == WSAEFAULT && cbret > il_len) {
il_len = cbret;
} else {
break;
}
}
if (!il)
goto _exit;
/* il is an array of INTERFACE_INFO structures. il_len has the
actual size of the buffer. The number of elements is
il_len/sizeof(INTERFACE_INFO) */
{
size_t n = il_len / sizeof(INTERFACE_INFO);
size_t i;
for (i = 0; i < n; i++ ) {
struct ifaddrs *ifp;
ifp = malloc(sizeof(*ifp));
if (ifp == NULL)
break;
ZeroMemory(ifp, sizeof(*ifp));
ifp->ifa_next = NULL;
ifp->ifa_name = NULL;
ifp->ifa_flags = il[i].iiFlags;
ifp->ifa_addr = dupaddr(&il[i].iiAddress);
ifp->ifa_netmask = dupaddr(&il[i].iiNetmask);
ifp->ifa_broadaddr = dupaddr(&il[i].iiBroadcastAddress);
ifp->ifa_data = NULL;
*ifpp = ifp;
ifpp = &ifp->ifa_next;
}
if (i == n)
ret = 0;
}
_exit:
if (s != INVALID_SOCKET)
closesocket(s);
if (il)
free (il);
return ret;
}
