diff options
Diffstat (limited to 'winsup/cygwin/net.cc')
| -rw-r--r-- | winsup/cygwin/net.cc | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/winsup/cygwin/net.cc b/winsup/cygwin/net.cc index dd316c5ea..2f443ef6d 100644 --- a/winsup/cygwin/net.cc +++ b/winsup/cygwin/net.cc @@ -1285,6 +1285,23 @@ convert_ifr_flags (u_long ws_flags) | ((ws_flags & WS_IFF_MULTICAST) << 8); } +static u_long +get_routedst (DWORD if_index) +{ + PMIB_IPFORWARDTABLE pift; + ULONG size = 0; + if (GetIpForwardTable (NULL, &size, FALSE) == ERROR_INSUFFICIENT_BUFFER + && (pift = (PMIB_IPFORWARDTABLE) alloca (size)) + && GetIpForwardTable (pift, &size, FALSE) == NO_ERROR) + for (DWORD i = 0; i < pift->dwNumEntries; ++i) + { + if (pift->table[i].dwForwardIfIndex == if_index + && pift->table[i].dwForwardMask == INADDR_BROADCAST) + return pift->table[i].dwForwardDest; + } + return INADDR_ANY; +} + /* * IFCONF XP SP1 and above. * Use IP Helpper function GetAdaptersAddresses. @@ -1364,6 +1381,20 @@ get_xp_ifconf (SOCKET s, struct ifconf *ifc, int what) &iie[iinf_idx].iiBroadcastAddress.AddressIn, sizeof (struct sockaddr_in)); break; + case SIOCGIFDSTADDR: + if (pap->IfType == IF_TYPE_PPP) + { + struct sockaddr_in *sa = (struct sockaddr_in *) + &ifr->ifr_dstaddr; + sa->sin_addr.s_addr = get_routedst (pap->IfIndex); + sa->sin_family = AF_INET; + sa->sin_port = 0; + } + else + memcpy (&ifr->ifr_addr, + &iie[iinf_idx].iiAddress.AddressIn, + sizeof (struct sockaddr_in)); + break; case SIOCGIFNETMASK: memcpy (&ifr->ifr_netmask, &iie[iinf_idx].iiNetmask.AddressIn, @@ -1565,6 +1596,17 @@ get_2k_ifconf (struct ifconf *ifc, int what) sa->sin_port = 0; #endif break; + case SIOCGIFDSTADDR: + sa = (struct sockaddr_in *) &ifr->ifr_dstaddr; + if (ifrow->dwType == MIB_IF_TYPE_PPP + || ifrow->dwType == MIB_IF_TYPE_SLIP) + sa->sin_addr.s_addr = + get_routedst (ipt->table[ip_cnt].dwIndex); + else + sa->sin_addr.s_addr = ipt->table[ip_cnt].dwAddr; + sa->sin_family = AF_INET; + sa->sin_port = 0; + break; case SIOCGIFNETMASK: sa = (struct sockaddr_in *) &ifr->ifr_netmask; sa->sin_addr.s_addr = ipt->table[ip_cnt].dwMask; @@ -1719,6 +1761,7 @@ get_nt_ifconf (struct ifconf *ifc, int what) break; case SIOCGIFCONF: case SIOCGIFADDR: + case SIOCGIFDSTADDR: sa = (struct sockaddr_in *) &ifr->ifr_addr; sa->sin_addr.s_addr = cygwin_inet_addr (dhcpaddress); @@ -1766,6 +1809,7 @@ get_nt_ifconf (struct ifconf *ifc, int what) break; case SIOCGIFCONF: case SIOCGIFADDR: + case SIOCGIFDSTADDR: sa = (struct sockaddr_in *) &ifr->ifr_addr; sa->sin_addr.s_addr = cygwin_inet_addr (ip); sa->sin_family = AF_INET; @@ -1845,6 +1889,7 @@ get_ifconf (SOCKET s, struct ifconf *ifc, int what) break; case SIOCGIFCONF: case SIOCGIFADDR: + case SIOCGIFDSTADDR: sa = (struct sockaddr_in *) &ifr->ifr_addr; sa->sin_addr.s_addr = htonl (INADDR_LOOPBACK); sa->sin_family = AF_INET; |