336 lines
8.9 KiB
C
336 lines
8.9 KiB
C
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/*++
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Copyright (c) 1991-1999 Microsoft Corporation
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Module Name:
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icmpapi.h
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Abstract:
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Declarations for the Win32 ICMP Echo request API.
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Author:
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Portable Systems Group 30-December-1993
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Revision History:
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Notes:
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--*/
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#ifndef _ICMP_INCLUDED_
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#define _ICMP_INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// Exported Routines.
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//
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//++
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//
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// Routine Name:
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//
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// IcmpCreateFile
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//
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// Routine Description:
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//
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// Opens a handle on which ICMP Echo Requests can be issued.
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//
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// Arguments:
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//
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// None.
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//
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// Return Value:
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//
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// An open file handle or INVALID_HANDLE_VALUE. Extended error information
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// is available by calling GetLastError().
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//
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//--
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HANDLE
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WINAPI
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IcmpCreateFile(
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VOID
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);
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//++
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//
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// Routine Name:
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//
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// Icmp6CreateFile
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//
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// Routine Description:
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//
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// Opens a handle on which ICMPv6 Echo Requests can be issued.
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//
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// Arguments:
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//
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// None.
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//
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// Return Value:
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//
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// An open file handle or INVALID_HANDLE_VALUE. Extended error information
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// is available by calling GetLastError().
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//
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//--
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HANDLE
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WINAPI
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Icmp6CreateFile(
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VOID
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);
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//++
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//
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// Routine Name:
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//
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// IcmpCloseHandle
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//
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// Routine Description:
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//
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// Closes a handle opened by ICMPOpenFile.
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//
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// Arguments:
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//
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// IcmpHandle - The handle to close.
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//
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// Return Value:
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//
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// TRUE if the handle was closed successfully, otherwise FALSE. Extended
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// error information is available by calling GetLastError().
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//
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//--
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BOOL
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WINAPI
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IcmpCloseHandle(
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HANDLE IcmpHandle
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);
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//++
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//
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// Routine Name:
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//
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// IcmpSendEcho
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//
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// Routine Description:
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//
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// Sends an ICMP Echo request and returns any replies. The
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// call returns when the timeout has expired or the reply buffer
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// is filled.
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//
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// Arguments:
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//
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// IcmpHandle - An open handle returned by ICMPCreateFile.
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//
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// DestinationAddress - The destination of the echo request.
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//
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// RequestData - A buffer containing the data to send in the
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// request.
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//
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// RequestSize - The number of bytes in the request data buffer.
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//
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// RequestOptions - Pointer to the IP header options for the request.
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// May be NULL.
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//
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// ReplyBuffer - A buffer to hold any replies to the request.
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// On return, the buffer will contain an array of
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// ICMP_ECHO_REPLY structures followed by the
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// options and data for the replies. The buffer
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// should be large enough to hold at least one
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// ICMP_ECHO_REPLY structure plus
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// MAX(RequestSize, 8) bytes of data since an ICMP
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// error message contains 8 bytes of data.
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//
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// ReplySize - The size in bytes of the reply buffer.
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//
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// Timeout - The time in milliseconds to wait for replies.
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//
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// Return Value:
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//
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// Returns the number of ICMP_ECHO_REPLY structures stored in ReplyBuffer.
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// The status of each reply is contained in the structure. If the return
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// value is zero, extended error information is available via
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// GetLastError().
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//
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//--
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DWORD
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WINAPI
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IcmpSendEcho(
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HANDLE IcmpHandle,
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IPAddr DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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);
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//++
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//
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// Routine Description:
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//
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// Sends an ICMP Echo request and the call returns either immediately
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// (if Event or ApcRoutine is NonNULL) or returns after the specified
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// timeout. The ReplyBuffer contains the ICMP responses, if any.
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//
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// Arguments:
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//
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// IcmpHandle - An open handle returned by ICMPCreateFile.
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//
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// Event - This is the event to be signalled whenever an IcmpResponse
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// comes in.
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//
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// ApcRoutine - This routine would be called when the calling thread
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// is in an alertable thread and an ICMP reply comes in.
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//
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// ApcContext - This optional parameter is given to the ApcRoutine when
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// this call succeeds.
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//
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// DestinationAddress - The destination of the echo request.
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//
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// RequestData - A buffer containing the data to send in the
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// request.
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//
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// RequestSize - The number of bytes in the request data buffer.
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//
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// RequestOptions - Pointer to the IP header options for the request.
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// May be NULL.
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//
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// ReplyBuffer - A buffer to hold any replies to the request.
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// On return, the buffer will contain an array of
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// ICMP_ECHO_REPLY structures followed by options
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// and data. The buffer must be large enough to
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// hold at least one ICMP_ECHO_REPLY structure.
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// It should be large enough to also hold
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// 8 more bytes of data - this is the size of
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// an ICMP error message.
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//
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// ReplySize - The size in bytes of the reply buffer.
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//
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// Timeout - The time in milliseconds to wait for replies.
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// This is NOT used if ApcRoutine is not NULL or if Event
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// is not NULL.
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//
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// Return Value:
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//
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// Returns the number of replies received and stored in ReplyBuffer. If
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// the return value is zero, extended error information is available
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// via GetLastError().
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//
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// Remarks:
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//
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// On NT platforms,
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// If used Asynchronously (either ApcRoutine or Event is specified), then
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// ReplyBuffer and ReplySize are still needed. This is where the response
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// comes in.
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// ICMP Response data is copied to the ReplyBuffer provided, and the caller of
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// this function has to parse it asynchronously. The function IcmpParseReply
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// is provided for this purpose.
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//
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// On non-NT platforms,
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// Event, ApcRoutine and ApcContext are IGNORED.
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//
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//--
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DWORD
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WINAPI
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IcmpSendEcho2(
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HANDLE IcmpHandle,
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HANDLE Event,
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#ifdef PIO_APC_ROUTINE_DEFINED
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PIO_APC_ROUTINE ApcRoutine,
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#else
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FARPROC ApcRoutine,
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#endif
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PVOID ApcContext,
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IPAddr DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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);
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DWORD
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WINAPI
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Icmp6SendEcho2(
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HANDLE IcmpHandle,
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HANDLE Event,
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#ifdef PIO_APC_ROUTINE_DEFINED
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PIO_APC_ROUTINE ApcRoutine,
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#else
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FARPROC ApcRoutine,
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#endif
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PVOID ApcContext,
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struct sockaddr_in6 *SourceAddress,
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struct sockaddr_in6 *DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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);
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//++
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//
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// Routine Description:
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//
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// Parses the reply buffer provided and returns the number of ICMP responses found.
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//
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// Arguments:
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//
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// ReplyBuffer - This must be the same buffer that was passed to IcmpSendEcho2
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// This is rewritten to hold an array of ICMP_ECHO_REPLY structures.
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// (i.e. the type is PICMP_ECHO_REPLY).
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//
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// ReplySize - This must be the size of the above buffer.
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//
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// Return Value:
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// Returns the number of ICMP responses found. If there is an errors, return value is
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// zero. The error can be determined by a call to GetLastError.
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//
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// Remarks:
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// This function SHOULD NOT BE USED on a reply buffer that was passed to SendIcmpEcho.
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// SendIcmpEcho actually parses the buffer before returning back to the user. This function
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// is meant to be used only with SendIcmpEcho2.
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//--
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DWORD
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IcmpParseReplies(
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LPVOID ReplyBuffer,
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DWORD ReplySize
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);
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DWORD
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Icmp6ParseReplies(
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LPVOID ReplyBuffer,
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DWORD ReplySize
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);
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#ifdef __cplusplus
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}
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#endif
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#endif // _ICMP_INCLUDED_
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