ping使用
说明
关于失联党员情况说明岗位说明总经理岗位说明书会计岗位说明书行政主管岗位说明书
和可以运行的源代码
如何使用自己写的ping 运行Cmd 进入命令提示符找到
的路径
然后是进
之后 zz baidu.com
举例: 在d盘
Cmd>d:>cd 计算机网络ping程序>cd debug> zz baidu.com
就可以看到结果
/*导入库文件*/
#pragma comment( lib, "ws2_32.lib" )
/*加载头文件*/
#include
#include
#include
#include
#include
/*定义常量*/
/*
表
关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf
示要记录路由*/
#define IP_RECORD_ROUTE 0x7 /*默认数据报大小*/
#define DEF_PACKET_SIZE 32 /*最大的ICMP数据报大小*/
#define MAX_PACKET 1024 /*最大IP头长度*/
#define MAX_IP_HDR_SIZE 60 /*ICMP报文类型，回显请求*/
#define ICMP_ECHO 8
/*ICMP报文类型，回显应答*/
#define ICMP_ECHOREPLY 0 /*最小的ICMP数据报大小*/
#define ICMP_MIN 8
/*自定义函数原型*/
void InitPing();
void UserHelp();
void GetArgments(int argc, char** argv);
USHORT CheckSum(USHORT *buffer, int size);
void FillICMPData(char *icmp_data, int datasize);
void FreeRes();
void DecodeIPOptions(char *buf, int bytes);
void DecodeICMPHeader(char *buf, int bytes, SOCKADDR_IN* from);
void PingTest(int timeout);
/*IP报头字段数据结构*/
typedef struct _iphdr
{
unsigned int h_len:4; /*IP报头长度*/
unsigned int version:4; /*IP的版本号*/
unsigned char tos; /*服务的类型*/
unsigned short total_len; /*数据报总长度*/
unsigned short ident; /*惟一的标识符*/
unsigned short frag_flags; /*分段标志*/
unsigned char ttl; /*生存期*/
unsigned char proto; /*
协议
离婚协议模板下载合伙人协议 下载渠道分销协议免费下载敬业协议下载授课协议下载
类型(TCP、UDP等)*/
unsigned short checksum; /*校验和*/
unsigned int sourceIP; /*源IP地址*/
unsigned int destIP; /*目的IP地址*/ } IpHeader;
/*ICMP报头字段数据结构*/
typedef struct _icmphdr {
BYTE i_type; /*ICMP报文类型*/
BYTE i_code; /*该类型中的代码号*/
USHORT i_cksum; /*校验和*/
USHORT i_id; /*惟一的标识符*/
USHORT i_seq; /*序列号*/
ULONG timestamp; /*时间戳*/ } IcmpHeader;
/*IP选项头字段数据结构*/
typedef struct _ipoptionhdr {
unsigned char code; /*选项类型*/
unsigned char len; /*选项头长度*/
unsigned char ptr; /*地址偏移长度*/
unsigned long addr[9]; /*记录的IP地址列表*/ } IpOptionHeader;
/*定义全局变量*/
SOCKET m_socket;
IpOptionHeader IpOption; SOCKADDR_IN DestAddr; SOCKADDR_IN SourceAddr; char *icmp_data;
char *recvbuf;
USHORT seq_no ;
char *lpdest;
int datasize;
BOOL RecordFlag;
double PacketNum;
BOOL SucessFlag;
/*初始化变量函数*/
void InitPing()
{
WSADATA wsaData;
icmp_data = NULL;
seq_no = 0;
recvbuf = NULL;
RecordFlag = FALSE;
lpdest = NULL;
datasize = DEF_PACKET_SIZE;
PacketNum = 5;
SucessFlag = FALSE;
/*Winsock初始化*/
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
/*如果初始化不成功则报错，GetLastError()返回发生的错误信息*/
printf("WSAStartup() failed: %d\n", GetLastError());
return ;
}
m_socket = INVALID_SOCKET;
}
/*显示信息函数*/
void UserHelp()
{
printf("UserHelp: ping -r [data size]\n");
printf(" -r record route\n");
printf(" -n record amount\n");
printf(" host remote machine to ping\n");
printf(" datasize can be up to 1KB\n");
ExitProcess(-1);
}
/*获取ping选项函数*/
void GetArgments(int argc,char** argv)
{
int i;
int j;
int exp;
int len;
int m;
/*如果没有指定目的地地址和任何选项*/
if(argc == 1)
{
printf("\nPlease specify the destination IP address and the ping option as follow!\n");
UserHelp();
}
for(i = 1; i < argc; i++)
{
len = strlen(argv[i]);
if (argv[i][0] == '-')
{
/*选项指示要获取记录的条数*/
if(isdigit(argv[i][1]))
{
PacketNum = 0;
for(j=len-1,exp=0;j>=1;j--,exp++)
/*根据argv[i][j]中的ASCII值计算要获取的记录条数(十进制数)*/
PacketNum += ((double)(argv[i][j]-48))*pow(10,exp);
}
else
{
switch (tolower(argv[i][1]))
{
/*选项指示要获取路由信息*/
case 'r':
RecordFlag = TRUE;
break;
/*没有按
要求
对教师党员的评价套管和固井爆破片与爆破装置仓库管理基本要求三甲医院都需要复审吗
提供选项*/
default:
UserHelp();
break;
}
}
}
/*参数是数据报大小或者IP地址*/
else if (isdigit(argv[i][0]))
{
for(m=1;m 1)
{
cksum += *buffer++;
size -= sizeof(USHORT);
}
if (size)
{
cksum += *(UCHAR*)buffer;
}
/*对每个16bit进行二进制反码求和*/
cksum = (cksum >> 16) + (cksum & 0xffff);
cksum += (cksum >>16);
return (USHORT)(~cksum);
}
/*填充ICMP数据报字段函数*/
void FillICMPData(char *icmp_data, int datasize) {
IcmpHeader *icmp_hdr = NULL;
char *datapart = NULL;
icmp_hdr = (IcmpHeader*)icmp_data;
/*ICMP报文类型设置为回显请求*/
icmp_hdr->i_type = ICMP_ECHO;
icmp_hdr->i_code = 0;
/*获取当前进程IP作为标识符*/
icmp_hdr->i_id = (USHORT)GetCurrentProcessId();
icmp_hdr->i_cksum = 0;
icmp_hdr->i_seq = 0;
datapart = icmp_data + sizeof(IcmpHeader);
/*以数字0填充剩余空间*/
memset(datapart,'0',datasize-sizeof(IcmpHeader));
}
/*释放资源函数*/
void FreeRes()
{
/*关闭创建的套接字*/
if (m_socket != INVALID_SOCKET)
closesocket(m_socket);
/*释放分配的内存*/
HeapFree(GetProcessHeap(), 0, recvbuf);
HeapFree(GetProcessHeap(), 0, icmp_data);
/*注销WSAStartup()调用*/
WSACleanup();
return ;
}
/*解读IP选项头函数*/
void DecodeIPOptions(char *buf, int bytes) {
IpOptionHeader *ipopt = NULL;
IN_ADDR inaddr;
int i;
HOSTENT *host = NULL;
/*获取路由信息的地址入口*/
ipopt = (IpOptionHeader *)(buf + 20);
printf("RR: ");
for(i = 0; i < (ipopt->ptr / 4) - 1; i++)
{
inaddr.S_un.S_addr = ipopt->addr[i];
if (i != 0)
printf(" ");
/*根据IP地址获取主机名*/
host = gethostbyaddr((char *)&inaddr.S_un.S_addr,sizeof(inaddr.S_un.S_addr),
AF_INET);
/*如果获取到了主机名，则输出主机名*/
if (host)
printf("(%-15s) %s\n", inet_ntoa(inaddr), host->h_name);
/*否则输出IP地址*/
else
printf("(%-15s)\n", inet_ntoa(inaddr));
}
return;
}
/*解读ICMP报头函数*/
void DecodeICMPHeader(char *buf, int bytes, SOCKADDR_IN *from)
{
IpHeader *iphdr = NULL;
IcmpHeader *icmphdr = NULL;
unsigned short iphdrlen;
DWORD tick;
static int icmpcount = 0;
iphdr = (IpHeader *)buf;
/*计算IP报头的长度*/
iphdrlen = iphdr->h_len * 4;
tick = GetTickCount();
/*如果IP报头的长度为最大长度(基本长度是20字节)，则认为有IP选项，需要解读IP选项*/
if ((iphdrlen == MAX_IP_HDR_SIZE) && (!icmpcount))
/*解读IP选项，即路由信息*/
DecodeIPOptions(buf, bytes);
/*如果读取的数据太小*/
if (bytes < iphdrlen + ICMP_MIN)
{
printf("Too few bytes from %s\n",
inet_ntoa(from->sin_addr));
}
icmphdr = (IcmpHeader*)(buf + iphdrlen);
/*如果收到的不是回显应答报文则报错*/
if (icmphdr->i_type != ICMP_ECHOREPLY)
{
printf("nonecho type %d recvd\n", icmphdr->i_type);
return;
}
/*核实收到的ID号和发送的是否一致*/
if (icmphdr->i_id != (USHORT)GetCurrentProcessId())
{
printf("someone else's packet!\n");
return ;
}
SucessFlag = TRUE;
/*输出记录信息*/
printf("%d bytes from %s:", bytes, inet_ntoa(from->sin_addr));
printf(" icmp_seq = %d. ", icmphdr->i_seq);
printf(" time: %d ms", tick - icmphdr->timestamp);
printf("\n");
icmpcount++;
return;
}
/*ping函数*/
void PingTest(int timeout)
{
int ret;
int readNum;
int fromlen;
struct hostent *hp = NULL;
/*创建原始套接字，该套接字用于ICMP协议*/
m_socket = WSASocket(AF_INET, SOCK_RAW, IPPROTO_ICMP, NULL,
0,WSA_FLAG_OVERLAPPED);
/*如果套接字创建不成功*/
if (m_socket == INVALID_SOCKET)
{
printf("WSASocket() failed: %d\n", WSAGetLastError());
return ;
}
/*若要求记录路由选项*/
if (RecordFlag)
{
/*IP选项每个字段用0初始化*/
ZeroMemory(&IpOption, sizeof(IpOption));
/*为每个ICMP包设置路由选项*/
IpOption.code = IP_RECORD_ROUTE;
IpOption.ptr = 4;
IpOption.len = 39;
ret = setsockopt(m_socket, IPPROTO_IP, IP_OPTIONS,(char *)&IpOption, sizeof(IpOption));
if (ret == SOCKET_ERROR)
{
printf("setsockopt(IP_OPTIONS) failed: %d\n",WSAGetLastError());
}
}
/*设置接收的超时值*/
readNum = setsockopt(m_socket, SOL_SOCKET, SO_RCVTIMEO,(char*)&timeout, sizeof(timeout));
if(readNum == SOCKET_ERROR)
{
printf("setsockopt(SO_RCVTIMEO) failed: %d\n",WSAGetLastError());
return ;
}
/*设置发送的超时值*/
timeout = 1000;
readNum = setsockopt(m_socket, SOL_SOCKET, SO_SNDTIMEO,(char*)&timeout, sizeof(timeout));
if (readNum == SOCKET_ERROR)
{
printf("setsockopt(SO_SNDTIMEO) failed: %d\n",WSAGetLastError());
return ;
}
/*用0初始化目的地地址*/
memset(&DestAddr, 0, sizeof(DestAddr));
/*设置地址族，这里表示使用IP地址族*/
DestAddr.sin_family = AF_INET;
if ((DestAddr.sin_addr.s_addr = inet_addr(lpdest)) == INADDR_NONE)
{
/*名字解析，根据主机名获取IP地址*/
if ((hp = gethostbyname(lpdest)) != NULL)
{
/*将获取到的IP值赋给目的地地址中的相应字段*/
memcpy(&(DestAddr.sin_addr), hp->h_addr, hp->h_length);
/*将获取到的地址族值赋给目的地地址中的相应字段*/
DestAddr.sin_family = hp->h_addrtype;
printf("DestAddr.sin_addr = %s\n", inet_ntoa(DestAddr.sin_addr));
}
/*获取不成功*/
else
{
printf("gethostbyname() failed: %d\n",WSAGetLastError());
return ;
}
}
/*数据报文大小需要包含ICMP报头*/
datasize += sizeof(IcmpHeader);
/*根据默认堆句柄，从堆中分配MAX_PACKET内存块，新分配内存的内容将被初始化
为0*/
icmp_data =(char*) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,MAX_PACKET);
recvbuf =(char*) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,MAX_PACKET);
/*如果分配内存不成功*/
if (!icmp_data)
{
printf("HeapAlloc() failed: %d\n", GetLastError());
return ;
}
/* 创建ICMP报文*/
memset(icmp_data,0,MAX_PACKET);
FillICMPData(icmp_data,datasize);
while(1)
{
static int nCount = 0;
int writeNum;
/*超过指定的记录条数则退出*/
if (nCount++ == PacketNum)
break;
/*计算校验和前要把校验和字段设置为0*/
((IcmpHeader*)icmp_data)->i_cksum = 0;
/*获取操作系统启动到现在所经过的毫秒数，设置时间戳*/
((IcmpHeader*)icmp_data)->timestamp = GetTickCount();
/*设置序列号*/
((IcmpHeader*)icmp_data)->i_seq = seq_no++;
/*计算校验和*/
((IcmpHeader*)icmp_data)->i_cksum = CheckSum((USHORT*)icmp_data, datasize);
/*开始发送ICMP请求 */
writeNum = sendto(m_socket, icmp_data, datasize, 0,(struct sockaddr*)&DestAddr,
sizeof(DestAddr));
/*如果发送不成功*/
if (writeNum == SOCKET_ERROR)
{
/*如果是由于超时不成功*/
if (WSAGetLastError() == WSAETIMEDOUT)
{
printf("timed out\n");
continue;
}
/*其他发送不成功原因*/
printf("sendto() failed: %d\n", WSAGetLastError());
return ;
}
/*开始接收ICMP应答 */
fromlen = sizeof(SourceAddr);
readNum = recvfrom(m_socket, recvbuf, MAX_PACKET, 0,(struct
sockaddr*)&SourceAddr, &fromlen);
/*如果接收不成功*/
if (readNum == SOCKET_ERROR)
{
/*如果是由于超时不成功*/
if (WSAGetLastError() == WSAETIMEDOUT)
{
printf("timed out\n");
continue;
}
/*其他接收不成功原因*/
printf("recvfrom() failed: %d\n", WSAGetLastError());
return ;
}
/*解读接收到的ICMP数据报*/
DecodeICMPHeader(recvbuf, readNum, &SourceAddr);
}
}
int main(int argc, char* argv[]) {
InitPing();
GetArgments(argc, argv);
PingTest(1000);
/*延迟1秒*/
Sleep(1000);
if(SucessFlag)
{
printf("\nPing 结束, 你得到 %.0f 条记录!\n",PacketNum);
printf("\n感谢你的使用，再ping请按enter\n");
}
else
printf("Ping 结束,没有记录!");
FreeRes();
getchar();
return 0;
}
浙公网安备 33021202002483