120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
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#include "dpsp.h"
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#undef DPF_MODNAME
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#define DPF_MODNAME "GetHostAddr"
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#define DUMMYPORTNAME "1" // value unused but must be non-zero
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void
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AddAddress(IPV6_INFO_INTERFACE *IF, IPV6_INFO_ADDRESS *ADE, void *Context)
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{
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int i;
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LPSOCKADDR_IN6 ps;
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SOCKET_ADDRESS_LIST *pList = (SOCKET_ADDRESS_LIST *)Context;
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ULONG ulSize = sizeof(SOCKADDR_IN6);
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// Skip it if it's not a unicast address
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if (IN6_IS_ADDR_MULTICAST(&ADE->This.Address))
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{
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return;
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}
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ps = MemAlloc(ulSize);
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if (ps == NULL)
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{
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// Memory allocation failed
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DEBUGPRINTADDR(0,"Could not add address : \n",ps);
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return;
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}
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i = pList->iAddressCount++;
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ZeroMemory(ps, ulSize);
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ps->sin6_family = AF_INET6;
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ps->sin6_addr = ADE->This.Address;
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ps->sin6_scope_id = IF->ZoneIndices[ADE->Scope];
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pList->Address[i].iSockaddrLength = ulSize;
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pList->Address[i].lpSockaddr = (LPSOCKADDR)ps;
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DEBUGPRINTADDR(0,"Added address : \n",ps);
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}
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void
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AddInterfaceAddresses(IPV6_INFO_INTERFACE *IF, void *Context1, void *Context2, void *Context3)
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{
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// Skip the loopback interface
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if (IF->This.Index == 1)
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{
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return;
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}
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DPF(0,"Processing interface %d",IF->This.Index);
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ForEachAddress(IF, AddAddress, Context1);
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}
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void
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CountAddress(IPV6_INFO_INTERFACE *IF, IPV6_INFO_ADDRESS *ADE, void *Context)
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{
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ULONG *pulNumAddresses = (ULONG *)Context;
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// Skip it if it's not a unicast address
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if (IN6_IS_ADDR_MULTICAST(&ADE->This.Address))
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{
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return;
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}
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(*pulNumAddresses)++;
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}
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void
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CountInterfaceAddresses(IPV6_INFO_INTERFACE *IF, void *Context1, void *Context2, void *Context3)
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{
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// Skip the loopback interface
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if (IF->This.Index == 1)
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{
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return;
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}
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ForEachAddress(IF, CountAddress, Context1);
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}
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// Helper function to retrieve host IP Address(es).
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// Caller must call FreeHostAddr on list returned
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SOCKET_ADDRESS_LIST *GetHostAddr(void)
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{
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UINT err;
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ULONG ulNumAddresses = 0;
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SOCKET_ADDRESS_LIST *pList;
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ForEachInterface(CountInterfaceAddresses, &ulNumAddresses, NULL, NULL);
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if (ulNumAddresses == 0)
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{
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DPF(0,"could not get addresses for local machine\n");
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return NULL;
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}
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pList = MemAlloc( FIELD_OFFSET(SOCKET_ADDRESS_LIST, Address[ulNumAddresses] ));
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if (pList == NULL)
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{
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DPF(0,"could not get addresses for local machine - err = %d\n", GetLastError());
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return NULL;
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}
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pList->iAddressCount = 0;
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ForEachInterface(AddInterfaceAddresses, pList, NULL, NULL);
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return pList;
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} // GetHostAddr
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void
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FreeHostAddr(SOCKET_ADDRESS_LIST *pList)
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{
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int i;
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for (i=0; i<pList->iAddressCount; i++)
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{
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MemFree(pList->Address[i].lpSockaddr);
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}
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MemFree(pList);
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}
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