论坛: 编程破解 标题: Ping的原代码 复制本贴地址    
作者: bluecat_ [bluecat_]    论坛用户   登录
Ping的原代码!!!

#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; // Version of IP
unsigned char tos; // 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;
/* 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));

}

地主 发表时间: 04-08-19 09:56

回复: zhong [zhong]   见习版主   登录
收起来

B1层 发表时间: 04-08-19 10:06

回复: bluecat_ [bluecat_]   论坛用户   登录


B2层 发表时间: 04-08-19 10:12

回复: bluecat_ [bluecat_]   论坛用户   登录
怎么没人顶顶呀

B3层 发表时间: 04-08-19 17:51

回复: xiaoqing01 [xiaoqing01]   论坛用户   登录
好东西!copy了!

B4层 发表时间: 04-08-20 00:05

回复: xiaoqing01 [xiaoqing01]   论坛用户   登录
好东西!copy了!

B5层 发表时间: 04-08-20 00:06

回复: fuckpower [fuckpower]   论坛用户   登录
是不是你写的哟,这好象是我一个认识的朋友写的哈~!

B6层 发表时间: 04-08-20 01:22

回复: 286 [unique]   版主   登录
强烈鄙视只收藏不分析的人.

B7层 发表时间: 04-08-20 09:00

回复: bluecat_ [bluecat_]   论坛用户   登录
那不是写的.......是复制来的....
好险是C呀..我还起码看的懂一些...........

B8层 发表时间: 04-08-20 10:34

回复: Garu [syshunter]   版主   登录
什么时候大家要都养成在转技术文章前自己先阅读一遍的习惯,那我们20CN的总体水平就真的提高上去了。
好象很多人都没这个习惯

B9层 发表时间: 04-08-20 12:48

回复: bluecat_ [bluecat_]   论坛用户   登录
我就有阅读哦........
自己不看就对不起自己哦....文章是你弄来的...却你自己不看给人家看...那不是说不过去吗

B10层 发表时间: 04-08-20 15:49

回复: river [ym024hhn]   论坛用户   登录
好东西要大家一起欣赏撒

B11层 发表时间: 04-08-22 17:34

回复: edodo0214 [edodo0214]   论坛用户   登录
不错不错!
好好好

B12层 发表时间: 04-08-22 18:08

回复: bluecat_ [bluecat_]   论坛用户   登录
可惜没人顶啊

B13层 发表时间: 04-08-22 19:01

回复: TGV_Mic [tgv]      登录
诚实的说偶看不懂~

谁能给我扫扫盲?

B14层 发表时间: 04-08-24 22:20

回复: cike [cike]   论坛用户   登录
顶了

B15层 发表时间: 04-08-26 20:38

回复: dyx [dyx]   论坛用户   登录
最后,终于有一个人顶了。。。。。。。。。。。。

B16层 发表时间: 04-08-28 17:38

回复: Garu [syshunter]   版主   登录
今天突然在MSDN上翻到这个代码。

B17层 发表时间: 04-08-28 18:19

回复: teczm [teczm]   版主   登录
赞同B7

B18层 发表时间: 04-08-28 18:20

回复: xjingbin0 [xjingbin0]   论坛用户   登录
在TC2.0的include目录中无winsock2.h。故无法编译这个程序,怎么办,请给出解决的方法。谢谢。

B19层 发表时间: 04-09-03 14:40

回复: cctvb999 [cctvb999]   论坛用户   登录
楼主。。。还有没。。。其他好东东哦。。。。

最好有VC++的哦

B20层 发表时间: 04-09-06 01:05

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