You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
2.5 KiB
132 lines
2.5 KiB
/*++
|
|
|
|
Copyright (C) Microsoft Corporation, 1997 - 1999
|
|
|
|
Module Name:
|
|
|
|
ipname.hxx
|
|
|
|
Abstract:
|
|
|
|
Header file for IP name resolution routines.
|
|
|
|
Author:
|
|
|
|
Gopal Parupudi <GopalP>
|
|
|
|
Notes:
|
|
|
|
a. Class IP_ADDRESS_RESOLVER cloned from RPC Runtime Transport sources
|
|
(rpc\runtime\trans\winnt\common\trans.hxx).
|
|
|
|
Revision History:
|
|
|
|
GopalP 10/13/1997 Start.
|
|
|
|
--*/
|
|
|
|
|
|
#define MAX_DESTINATION_NAME_LEN 255
|
|
|
|
//
|
|
// Common macros
|
|
//
|
|
|
|
#if DBG
|
|
#define DEBUG_MIN(x,y) min((x),(y))
|
|
#else
|
|
#define DEBUG_MIN(x,y) max((x),(y))
|
|
#endif
|
|
|
|
|
|
//
|
|
// Forward declarations
|
|
//
|
|
|
|
DWORD
|
|
ResolveName(
|
|
IN TCHAR *lpszDestination,
|
|
OUT LPDWORD lpdwIpAddr
|
|
);
|
|
|
|
#if !defined(SENS_CHICAGO)
|
|
|
|
//
|
|
// IP name resolver
|
|
//
|
|
|
|
const int IP_RETAIL_BUFFER_SIZE = 3*0x38;
|
|
const int IP_BUFFER_SIZE = DEBUG_MIN(1, IP_RETAIL_BUFFER_SIZE);
|
|
|
|
class IP_ADDRESS_RESOLVER
|
|
/*++
|
|
|
|
Class Description:
|
|
|
|
Manages the WSALookupServiceBegin/Next/End calls in a more
|
|
natural way. Used to convert a string network name into
|
|
one or more IP addresses.
|
|
|
|
Members:
|
|
|
|
_Name - The name being resolved. Set to NULL after the
|
|
first call to NextAddress();
|
|
|
|
_hRnr - NULL or the handle returned by a call to
|
|
WSALookupServiceBegin.
|
|
|
|
_size - The (total) size of the buffer pointed at by _pwsqs.
|
|
|
|
_fFree - If TRUE, _pwsqs needs to be freed when the object
|
|
is destroyed.
|
|
|
|
_pwsqs - A buffer of _size bytes used to hold the output
|
|
from WSALookupSericeNext. Maybe a caller supplied
|
|
buffer or allocated internally.
|
|
|
|
--*/
|
|
{
|
|
public:
|
|
IP_ADDRESS_RESOLVER(
|
|
IN TCHAR *Name,
|
|
IN DWORD dwSize,
|
|
IN PVOID Buffer
|
|
)
|
|
/*++
|
|
|
|
Arguments:
|
|
|
|
Name - The name (dotted ip address or DNS name) to resolve.
|
|
dwSize - The size of the Buffer parameter
|
|
Buffer - storage used to keep internal state between
|
|
calls to NextAddress. Maybe freed after the object
|
|
is destoryed.
|
|
|
|
--*/
|
|
{
|
|
_Name = Name;
|
|
_hRnr = 0;
|
|
_size = dwSize;
|
|
_fFree = FALSE;
|
|
_pwsqs = (PWSAQUERYSET)Buffer;
|
|
|
|
ASSERT(dwSize == 0 || dwSize >= sizeof(WSAQUERYSET));
|
|
}
|
|
|
|
RPC_STATUS
|
|
NextAddress(
|
|
OUT LPDWORD lpdwIpAddr
|
|
);
|
|
|
|
~IP_ADDRESS_RESOLVER();
|
|
|
|
private:
|
|
TCHAR *_Name;
|
|
HANDLE _hRnr;
|
|
DWORD _index;
|
|
DWORD _size;
|
|
BOOL _fFree;
|
|
PWSAQUERYSET _pwsqs;
|
|
};
|
|
|
|
#endif // SENS_CHICAGO
|