／*icmpapi.h怎么没有？另p2p的问题!*/

[beegee]

我编一个局域网中类似于ping功能的模块，用IcmpCreateFile等api函数，在ｍｓｄｎ上看，说要icmpapi.h,但方圆一百米内的所有vc居然都没有．是不是要装sp for vc才行呀？另外想问问高手，p2p的东东用什么方法，也就是用什么协议来得到可连接的地址比较好！（两个问题的分数分配为10/30)thank you!

[beegee]

高手们，快来呀！

[NowCan]

gongxy的icmp.h不行吗？

[beegee]

快来呀！

[gongxy]

#ifndef _INC_ICMP_H
#define _INC_ICMP_H

/*------------------------------------------------------------------
* Filename: ICMP.H
*
* Description:
* Prototypes and typedefs Microsoft's ICMP.DLL functions & structs
* for access to Internet Control Message Protocol. This is capable
* of doing "ping or "traceroute", although beware that Microsoft
* discourages the use of these APIs.
*
* Some Background:
*
* The standard Berkeley Sockets SOCK_RAW socket type, is normally used
* to create ping (echo request/reply), and sometimes traceroute applications
* (the original traceroute application from Van Jacobson used UDP, rather
* than ICMP). Microsoft's WinSock version 2 implementations for NT4 and
* Windows 95 support raw sockets, but none of their WinSock version 1.1
* implementations (WFWG, NT3.x or standard Windows 95) did.
*
* Microsoft has their own API for an ICMP.DLL that their ping and tracert
* applications use (by the way, they are both non-GUI text-based console
* applications. This is a proprietary API, and all function calls that
* involve network functions operate in blocking mode. They still include
* it with WinSock 2 implementations.
*
* There is little documentation available (I first found it in the Win32
* SDK in \MSTOOLS\ICMP, and it exists on the MS Developers' Network
* CD-ROM now, also). Microsoft disclaims this API about as strongly as
* possible. The README.TXT that accompanies it says:
*
* [DISCLAIMER]
*
* We have had requests in the past to expose the functions exported from
* icmp.dll. The files in this directory are provided for your convenience
* in building applications which make use of ICMPSendEcho(). Notice that
* the functions in icmp.dll are not considered part of the Win32 API and
* will not be supported in future releases. Once we have a more complete
* solution in the operating system, this DLL, and the functions it exports,
* will be dropped.
*
* [DOCUMENTATION]
*
* The ICMPSendEcho() function sends an ICMP echo request to the specified
* destination IP address and returns any replies received within the timeout
* specified. The API is synchronous, requiring the process to spawn a thread
* before calling the API to avoid blocking. An open IcmpHandle is required
* for the request to complete. IcmpCreateFile() and IcmpCloseHandle()
* functions are used to create and destroy the context handle.</P>
*/
#include <windows.h>

#ifdef __cplusplus
extern "C"{
#endif

HANDLE WINAPI IcmpCreateFile(VOID); /* INVALID_HANDLE_VALUE on error */
BOOL WINAPI IcmpCloseHandle(HANDLE IcmpHandle); /* FALSE on error */

/* Note 2: For the most part, you can refer to RFC 791 for detials
* on how to fill in values for the IP option information structure.
*/
typedef struct ip_option_information {
BYTE Ttl; /* Time To Live (used for traceroute) */
BYTE Tos; /* Type Of Service (usually 0) */
BYTE Flags; /* IP header flags (usually 0) */
BYTE OptionsSize; /* Size of options data (usually 0, max 40) */
BYTE FAR *OptionsData; /* Options data buffer */
} IPINFO, *PIPINFO, FAR *LPIPINFO;


/* Note 1: The Reply Buffer will have an array of ICMP_ECHO_REPLY
* structures, followed by options and the data in ICMP echo reply
* datagram received. You must have room for at least one ICMP
* echo reply structure, plus 8 bytes for an ICMP header.
*/
typedef struct icmp_echo_reply {
DWORD Address; /* source address */
DWORD Status; /* IP status value (see below) */
DWORD RTTime; /* Round Trip Time in milliseconds */
WORD DataSize; /* reply data size */
WORD Reserved; /* */
void FAR *Data; /* reply data buffer */
struct ip_option_information Options; /* reply options */
} ICMPECHO, *PICMPECHO, FAR *LPICMPECHO;


DWORD WINAPI IcmpSendEcho(
HANDLE IcmpHandle, /* handle returned from IcmpCreateFile() */
DWORD DestAddress, /* destination IP address (in network order) */
LPVOID RequestData, /* pointer to buffer to send */
WORD RequestSize, /* length of data in buffer */
LPIPINFO RequestOptns, /* see Note 2 */
LPVOID ReplyBuffer, /* see Note 1 */
DWORD ReplySize, /* length of reply (must allow at least 1 reply) */
DWORD Timeout /* time in milliseconds to wait for reply */
);


#define IP_STATUS_BASE 11000
#define IP_SUCCESS 0
#define IP_BUF_TOO_SMALL (IP_STATUS_BASE + 1)
#define IP_DEST_NET_UNREACHABLE (IP_STATUS_BASE + 2)
#define IP_DEST_HOST_UNREACHABLE (IP_STATUS_BASE + 3)
#define IP_DEST_PROT_UNREACHABLE (IP_STATUS_BASE + 4)
#define IP_DEST_PORT_UNREACHABLE (IP_STATUS_BASE + 5)
#define IP_NO_RESOURCES (IP_STATUS_BASE + 6)
#define IP_BAD_OPTION (IP_STATUS_BASE + 7)
#define IP_HW_ERROR (IP_STATUS_BASE + 8)
#define IP_PACKET_TOO_BIG (IP_STATUS_BASE + 9)
#define IP_REQ_TIMED_OUT (IP_STATUS_BASE + 10)
#define IP_BAD_REQ (IP_STATUS_BASE + 11)
#define IP_BAD_ROUTE (IP_STATUS_BASE + 12)
#define IP_TTL_EXPIRED_TRANSIT (IP_STATUS_BASE + 13)
#define IP_TTL_EXPIRED_REASSEM (IP_STATUS_BASE + 14)
#define IP_PARAM_PROBLEM (IP_STATUS_BASE + 15)
#define IP_SOURCE_QUENCH (IP_STATUS_BASE + 16)
#define IP_OPTION_TOO_BIG (IP_STATUS_BASE + 17)
#define IP_BAD_DESTINATION (IP_STATUS_BASE + 18)
#define IP_ADDR_DELETED (IP_STATUS_BASE + 19)
#define IP_SPEC_MTU_CHANGE (IP_STATUS_BASE + 20)
#define IP_MTU_CHANGE (IP_STATUS_BASE + 21)
#define IP_UNLOAD (IP_STATUS_BASE + 22)
#define IP_GENERAL_FAILURE (IP_STATUS_BASE + 50)
#define MAX_IP_STATUS IP_GENERAL_FAILURE
#define IP_PENDING (IP_STATUS_BASE + 255)

#ifdef __cplusplus
}
#endif

#endif //_INC_ICMP_H

[beegee]

icmp.h or icmpapi.h? *.cpp有吗？