#include "icmpapi.h"
#include "iphlpapi.h"
#pragma comment(lib,"谈薯iphlpapi.lib")
bool CPINGDlg::startping(char* IP) //成功好孝返回true, 失败返回false
{
HANDLE hIcmpFile = NULL
unsigned long ipaddr = INADDR_NONE
DWORD dwRetVal = 0
char SendData[] = "Data Buffer\0"
LPVOID ReplyBuffer = NULL
DWORD ReplySize = 0
// PICMP_ECHO_REPLY reply
ipaddr = inet_addr(IP)
ReplySize = sizeof(ICMP_ECHO_REPLY)+sizeof(SendData)
ReplyBuffer = (void*)malloc(ReplySize)
hIcmpFile = IcmpCreateFile()
if (hIcmpFile == INVALID_HANDLE_VALUE)
{
AfxMessageBox(_T("Ping 内部代码错误"))
return false
}
dwRetVal = IcmpSendEcho(hIcmpFile, ipaddr, SendData, sizeof(SendData), NULL, ReplyBuffer, ReplySize, 1000)
// CloseHandle(hIcmpFile)
// free(ReplyBuffer)
if (dwRetVal != 0)
{
return true
}
else
{
return false
}
}
#pragma pack(4)
#define WIN32_LEAN_AND_MEAN
#include <WINSOCK2.H>
#include <STDIO.H>
#include <STDLIB.H>
#define ICMP_ECHO 8
#define ICMP_ECHOREPLY 0
#define ICMP_MIN 8 // minimum 8 byte icmp packet (just header)
/* The IP header */
typedef struct iphdr {
unsigned int h_len:4// length of the header
unsigned int version:4/液森/ Version of IP
unsigned char tos//没兆 Type of service
unsigned short total_len// total length of the packet
unsigned short ident// unique identifier
unsigned short frag_and_flags// flags
unsigned char ttl
unsigned char proto// protocol (TCP, UDP etc)
unsigned short checksum// IP checksum
unsigned int sourceIP
unsigned int destIP
}IpHeader
//
// ICMP header
//
typedef struct _ihdr {
BYTE i_type
BYTE i_code/* type sub code */
USHORT i_cksum
USHORT i_id
USHORT i_seq
/枯埋租* This is not the std header, but we reserve space for time */
ULONG timestamp
}IcmpHeader
#define STATUS_FAILED 0xFFFF
#define DEF_PACKET_SIZE 32
#define MAX_PACKET 1024
#define xmalloc(s) HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,(s))
#define xfree(p) HeapFree (GetProcessHeap(),0,(p))
void fill_icmp_data(char *, int)
USHORT checksum(USHORT *, int)
void decode_resp(char *,int ,struct sockaddr_in *)
void Usage(char *progname){
fprintf(stderr,"Usage:\n")
fprintf(stderr,"%s <HOST>[data_size]\n",progname)
fprintf(stderr,"datasize can be up to 1Kb\n")
ExitProcess(STATUS_FAILED)
}
int main(int argc, char **argv){
WSADATA wsaData
SOCKET sockRaw
struct sockaddr_in dest,from
struct hostent * hp
int bread,datasize
int fromlen = sizeof(from)
int timeout = 1000
char *dest_ip
char *icmp_data
char *recvbuf
unsigned int addr=0
USHORT seq_no = 0
if (WSAStartup(MAKEWORD(2,1),&wsaData) != 0){
fprintf(stderr,"WSAStartup failed: %d\n",GetLastError())
ExitProcess(STATUS_FAILED)
}
if (argc <2 ) {
Usage(argv[0])
}
sockRaw = WSASocket (AF_INET,
SOCK_RAW,
IPPROTO_ICMP,
NULL, 0,0)
if (sockRaw == INVALID_SOCKET) {
fprintf(stderr,"WSASocket() failed: %d\n",WSAGetLastError())
ExitProcess(STATUS_FAILED)
}
bread = setsockopt(sockRaw,SOL_SOCKET,SO_RCVTIMEO,(char*)&timeout,
sizeof(timeout))
if(bread == SOCKET_ERROR) {
fprintf(stderr,"failed to set recv timeout: %d\n",WSAGetLastError())
ExitProcess(STATUS_FAILED)
}
timeout = 1000
bread = setsockopt(sockRaw,SOL_SOCKET,SO_SNDTIMEO,(char*)&timeout,
sizeof(timeout))
if(bread == SOCKET_ERROR) {
fprintf(stderr,"failed to set send timeout: %d\n",WSAGetLastError())
ExitProcess(STATUS_FAILED)
}
memset(&dest,0,sizeof(dest))
hp = gethostbyname(argv[1])
if (!hp){
addr = inet_addr(argv[1])
}
if ((!hp) &&(addr == INADDR_NONE) ) {
fprintf(stderr,"Unable to resolve %s\n",argv[1])
ExitProcess(STATUS_FAILED)
}
if (hp != NULL)
memcpy(&(dest.sin_addr),hp->h_addr,hp->h_length)
else
dest.sin_addr.s_addr = addr
if (hp)
dest.sin_family = hp->h_addrtype
else
dest.sin_family = AF_INET
dest_ip = inet_ntoa(dest.sin_addr)
if (argc >2) {
datasize = atoi(argv[2])
if (datasize == 0)
datasize = DEF_PACKET_SIZE
}
else
datasize = DEF_PACKET_SIZE
datasize += sizeof(IcmpHeader)
icmp_data = xmalloc(MAX_PACKET)
recvbuf = xmalloc(MAX_PACKET)
if (!icmp_data) {
fprintf(stderr,"HeapAlloc failed %d\n",GetLastError())
ExitProcess(STATUS_FAILED)
}
memset(icmp_data,0,MAX_PACKET)
fill_icmp_data(icmp_data,datasize)
while(1) {
int bwrote
((IcmpHeader*)icmp_data)->i_cksum = 0
((IcmpHeader*)icmp_data)->timestamp = GetTickCount()
((IcmpHeader*)icmp_data)->i_seq = seq_no++
((IcmpHeader*)icmp_data)->i_cksum = checksum((USHORT*)icmp_data,
datasize)
bwrote = sendto(sockRaw,icmp_data,datasize,0,(struct sockaddr*)&dest,
sizeof(dest))
if (bwrote == SOCKET_ERROR){
if (WSAGetLastError() == WSAETIMEDOUT) {
printf("timed out\n")
continue
}
fprintf(stderr,"sendto failed: %d\n",WSAGetLastError())
ExitProcess(STATUS_FAILED)
}
if (bwrote <datasize ) {
fprintf(stdout,"Wrote %d bytes\n",bwrote)
}
bread = recvfrom(sockRaw,recvbuf,MAX_PACKET,0,(struct sockaddr*)&from,
&fromlen)
if (bread == SOCKET_ERROR){
if (WSAGetLastError() == WSAETIMEDOUT) {
printf("timed out\n")
continue
}
fprintf(stderr,"recvfrom failed: %d\n",WSAGetLastError())
ExitProcess(STATUS_FAILED)
}
decode_resp(recvbuf,bread,&from)
Sleep(1000)
}
return 0
}
/*
The response is an IP packet. We must decode the IP header to locate
the ICMP data
*/
void decode_resp(char *buf, int bytes,struct sockaddr_in *from) {
IpHeader *iphdr
IcmpHeader *icmphdr
unsigned short iphdrlen
iphdr = (IpHeader *)buf
iphdrlen = iphdr->h_len * 4 // number of 32-bit words *4 = bytes
if (bytes <iphdrlen + ICMP_MIN) {
printf("Too few bytes from %s\n",inet_ntoa(from->sin_addr))
}
icmphdr = (IcmpHeader*)(buf + iphdrlen)
if (icmphdr->i_type != ICMP_ECHOREPLY) {
fprintf(stderr,"non-echo type %d recvd\n",icmphdr->i_type)
return
}
if (icmphdr->i_id != (USHORT)GetCurrentProcessId()) {
fprintf(stderr,"someone else's packet!\n")
return
}
printf("%d bytes from %s:",bytes, inet_ntoa(from->sin_addr))
printf(" icmp_seq = %d. ",icmphdr->i_seq)
printf(" time: %d ms ",GetTickCount()-icmphdr->timestamp)
printf("\n")
}
USHORT checksum(USHORT *buffer, int size) {
unsigned long cksum=0
while(size >1) {
cksum+=*buffer++
size -=sizeof(USHORT)
}
if(size ) {
cksum += *(UCHAR*)buffer
}
cksum = (cksum >>16) + (cksum &0xffff)
cksum += (cksum >>16)
return (USHORT)(~cksum)
}
/*
Helper function to fill in various stuff in our ICMP request.
*/
void fill_icmp_data(char * icmp_data, int datasize){
IcmpHeader *icmp_hdr
char *datapart
icmp_hdr = (IcmpHeader*)icmp_data
icmp_hdr->i_type = ICMP_ECHO
icmp_hdr->i_code = 0
icmp_hdr->i_id = (USHORT)GetCurrentProcessId()
icmp_hdr->i_cksum = 0
icmp_hdr->i_seq = 0
datapart = icmp_data + sizeof(IcmpHeader)
//
// Place some junk in the buffer.
//
memset(datapart,'E', datasize - sizeof(IcmpHeader))
}
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