Windows兼容XP-Win10的CPing工具类(兼容Linux)
// PingUtil.h : Include file for standard system include files, // or project specific include files. #pragma once #include <iostream> // TODO: Reference additional headers your program requires here. #include <stdio.h> #include <signal.h> #ifdef TARGET_HOST_POSIX_X11 #include <arpa/inet.h> #include <sys/types.h> #include <sys/socket.h> #include <unistd.h> #include <netinet/in.h> #include <netinet/ip.h> #include <netinet/ip_icmp.h> #include <netdb.h> #include <setjmp.h> #include <errno.h> #include <sys/time.h> #include <string.h> #define PACKET_SIZE 4096 #define MAX_WAIT_TIME 5 #define MAX_NO_PACKETS 3 #else #include <winsock2.h> #include <iphlpapi.h> #include <icmpapi.h> #pragma comment(lib, "ws2_32.lib") #endif #include <errno.h> class PintUtil { public: #ifdef TARGET_HOST_POSIX_X11 PintUtil() {} virtual ~PintUtil() {}; char sendpacket[PACKET_SIZE]; char recvpacket[PACKET_SIZE]; int sockfd, datalen = 56; int nsend = 0, nreceived = 0; struct sockaddr_in dest_addr; pid_t pid; struct sockaddr_in from; struct timeval tvrecv; //static void statistics(int signo) //{ //printf("\n--------------------PING statistics-------------------\n"); //printf("%d packets transmitted, %d received , %%%d lost\n", nsend, nreceived, (nsend - nreceived) / nsend * 100); //close(sockfd); //exit(1); //} /*校验和算法*/ unsigned short cal_chksum(unsigned short* addr, int len) { int nleft = len; int sum = 0; unsigned short* w = addr; unsigned short answer = 0; /*把ICMP报头二进制数据以2字节为单位累加起来*/ while (nleft > 1) { sum += *w++; nleft -= 2; } /*若ICMP报头为奇数个字节,会剩下最后一字节。把最后一个字节视为一个2字节数据的高字节,这个2字节数据的低字节为0,继续累加*/ if (nleft == 1) { *(unsigned char*)(&answer) = *(unsigned char*)w; sum += answer; } sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); answer = ~sum; return answer; } /*设置ICMP报头*/ int pack(int pack_no) { int i, packsize; struct icmp* icmp; struct timeval* tval; icmp = (struct icmp*)sendpacket; icmp->icmp_type = ICMP_ECHO; icmp->icmp_code = 0; icmp->icmp_cksum = 0; icmp->icmp_seq = pack_no; icmp->icmp_id = pid; packsize = 8 + datalen; tval = (struct timeval*)icmp->icmp_data; gettimeofday(tval, NULL); /*记录发送时间*/ icmp->icmp_cksum = cal_chksum((unsigned short*)icmp, packsize); /*校验算法*/ return packsize; } /*发送三个ICMP报文*/ void send_packet() { int packetsize; while (nsend < MAX_NO_PACKETS) { nsend++; packetsize = pack(nsend); /*设置ICMP报头*/ if (sendto(sockfd, sendpacket, packetsize, 0, (struct sockaddr*)&dest_addr, sizeof(dest_addr)) < 0) { perror("sendto error"); continue; } sleep(1); /*每隔一秒发送一个ICMP报文*/ } } /*接收所有ICMP报文*/ void recv_packet() { int n, fromlen; //extern int errno; //signal(SIGALRM, statistics); fromlen = sizeof(from); while (nreceived < nsend) { alarm(MAX_WAIT_TIME); if ((n = recvfrom(sockfd, recvpacket, sizeof(recvpacket), 0, (struct sockaddr*)&from, (socklen_t*)&fromlen)) < 0) { if (errno == EINTR)continue; perror("recvfrom error"); continue; } gettimeofday(&tvrecv, NULL); /*记录接收时间*/ if (unpack(recvpacket, n) == -1)continue; nreceived++; } } /*剥去ICMP报头*/ int unpack(char* buf, int len) { int i, iphdrlen; struct ip* ip; struct icmp* icmp; struct timeval* tvsend; double rtt; ip = (struct ip*)buf; iphdrlen = ip->ip_hl << 2; /*求ip报头长度,即ip报头的长度标志乘4*/ icmp = (struct icmp*)(buf + iphdrlen); /*越过ip报头,指向ICMP报头*/ len -= iphdrlen; /*ICMP报头及ICMP数据报的总长度*/ if (len < 8) /*小于ICMP报头长度则不合理*/ { printf("ICMP packets/'s length is less than 8\n"); return -1; } /*确保所接收的是我所发的的ICMP的回应*/ if ((icmp->icmp_type == ICMP_ECHOREPLY) && (icmp->icmp_id == pid)) { tvsend = (struct timeval*)icmp->icmp_data; tv_sub(&tvrecv, tvsend); /*接收和发送的时间差*/ rtt = tvrecv.tv_sec * 1000 + tvrecv.tv_usec / 1000; /*以毫秒为单位计算rtt*/ /*显示相关信息*/ printf("%d byte from %s: icmp_seq=%u ttl=%d rtt=%.3f ms\n", len, inet_ntoa(from.sin_addr), icmp->icmp_seq, ip->ip_ttl, rtt); } else return -1; } int test_main(int argc, char* argv[]) { struct hostent* host; struct protoent* protocol; unsigned long inaddr = 0l; int waittime = MAX_WAIT_TIME; int size = 50 * 1024; if (argc < 2) { printf("usage:%s hostname/IP address\n", argv[0]); exit(1); } if ((protocol = getprotobyname("icmp")) == NULL) { perror("getprotobyname"); exit(1); } /*生成使用ICMP的原始套接字,这种套接字只有root才能生成*/ if ((sockfd = socket(AF_INET, SOCK_RAW, protocol->p_proto)) < 0) { perror("socket error"); exit(1); } /* 回收root权限,设置当前用户权限*/ setuid(getuid()); /* * 扩大套接字接收缓冲区到50K这样做主要为了减小接收缓冲区溢出的 * 的可能性,若无意中ping一个广播地址或多播地址,将会引来大量应答 * */ setsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)); memset(&dest_addr, 0, sizeof(dest_addr)); dest_addr.sin_family = AF_INET; /*判断是主机名还是ip地址*/ if (inaddr = inet_addr(argv[1]) == INADDR_NONE) { if ((host = gethostbyname(argv[1])) == NULL) /*是主机名*/ { perror("gethostbyname error"); exit(1); } memcpy((char*)&dest_addr.sin_addr, host->h_addr, host->h_length); } else /*是ip地址*/ memcpy((char*)&dest_addr, (char*)&inaddr, host->h_length); /*获取main的进程id,用于设置ICMP的标志符*/ pid = getpid(); printf("PING %s(%s): %d bytes data in ICMP packets.\n", argv[1], inet_ntoa(dest_addr.sin_addr), datalen); send_packet(); /*发送所有ICMP报文*/ recv_packet(); /*接收所有ICMP报文*/ //statistics(SIGALRM); /*进行统计*/ return 0; } /*两个timeval结构相减*/ void tv_sub(struct timeval* out, struct timeval* in) { if ((out->tv_usec -= in->tv_usec) < 0) { --out->tv_sec; out->tv_usec += 1000000; } out->tv_sec -= in->tv_sec; } /*发送一个ICMP报文*/ bool send_once_packet() { int packetsize; while (nsend < 1) { nsend++; packetsize = pack(nsend); /*设置ICMP报头*/ if (sendto(sockfd, sendpacket, packetsize, 0, (struct sockaddr*)&dest_addr, sizeof(dest_addr)) < 0) { perror("sendto error"); return false; } return true; } return false; } /*接收一个ICMP报文*/ bool recv_once_packet() { int n, fromlen; fromlen = sizeof(from); while (nreceived < nsend) { //sleep(1); if ((n = recvfrom(sockfd, recvpacket, sizeof(recvpacket), 0, (struct sockaddr*)&from, (socklen_t*)&fromlen)) < 0) { perror("recvfrom error"); return false; } gettimeofday(&tvrecv, NULL); /*记录接收时间*/ if (unpack(recvpacket, n) == -1) { return false; } return true; } return false; } static bool Ping(const std::string& ip) { PintUtil pu = PintUtil(); bool result = false; struct hostent* host; struct protoent* protocol; unsigned long inaddr = 0l; int waittime = MAX_WAIT_TIME; int size = 50 * 1024; if ((protocol = getprotobyname("icmp")) == NULL) { perror("getprotobyname"); exit(1); } /*生成使用ICMP的原始套接字,这种套接字只有root才能生成*/ if ((pu.sockfd = socket(AF_INET, SOCK_RAW, protocol->p_proto)) < 0) { perror("socket error"); exit(1); } /* 回收root权限,设置当前用户权限*/ setuid(getuid()); /* * 扩大套接字接收缓冲区到50K这样做主要为了减小接收缓冲区溢出的 * 的可能性,若无意中ping一个广播地址或多播地址,将会引来大量应答 * */ setsockopt(pu.sockfd, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)); memset(&pu.dest_addr, 0, sizeof(dest_addr)); pu.dest_addr.sin_family = AF_INET; /*判断是主机名还是ip地址*/ if (inet_pton(AF_INET, ip.c_str(), &pu.dest_addr.sin_addr) == 0) { if ((host = gethostbyname(ip.c_str())) == NULL) /*是主机名*/ { perror("gethostbyname error"); exit(1); } memcpy((char*)&pu.dest_addr.sin_addr, host->h_addr, host->h_length); } /*获取main的进程id,用于设置ICMP的标志符*/ pu.pid = getpid(); printf("PING %s(%s): %d bytes data in ICMP packets.\n", ip.c_str(), inet_ntoa(pu.dest_addr.sin_addr), pu.datalen); return ((pu.send_once_packet() == true) && (pu.recv_once_packet() == true)); } #else typedef HANDLE(WINAPI*PFN_IcmpCreateFile)(); typedef DWORD(WINAPI*PFN_IcmpSendEcho)( HANDLE IcmpHandle, IPAddr DestinationAddress, LPVOID RequestData, WORD RequestSize, PIP_OPTION_INFORMATION RequestOptions, LPVOID ReplyBuffer, DWORD ReplySize, DWORD Timeout ); typedef DWORD(WINAPI*PFN_IcmpParseReplies)( LPVOID ReplyBuffer, DWORD ReplySize ); typedef BOOL(WINAPI*PFN_IcmpCloseHandle)( HANDLE IcmpHandle ); PintUtil() { hModule = GetModuleHandle(TEXT("IPHLPAPI")); if (hModule == nullptr) { hModule = LoadLibrary(TEXT("IPHLPAPI")); if (hModule != nullptr) { bLoad = true; } else { hModule = GetModuleHandle(TEXT("ICMP")); if (hModule == nullptr) { hModule = LoadLibrary(TEXT("ICMP")); if (hModule != nullptr) { bLoad = true; } } } } if (hModule != nullptr) { fnIcmpCreateFile = (PFN_IcmpCreateFile)GetProcAddress(hModule, "IcmpCreateFile"); fnIcmpSendEcho = (PFN_IcmpSendEcho)GetProcAddress(hModule, "IcmpSendEcho"); fnIcmpParseReplies = (PFN_IcmpParseReplies)GetProcAddress(hModule, "IcmpParseReplies"); fnIcmpCloseHandle = (PFN_IcmpCloseHandle)GetProcAddress(hModule, "IcmpCloseHandle"); } } virtual ~PintUtil() { if (bLoad == true) { fnIcmpCreateFile = nullptr; fnIcmpSendEcho = nullptr; fnIcmpParseReplies = nullptr; fnIcmpCloseHandle = nullptr; FreeLibrary(hModule); hModule = nullptr; bLoad = false; } }; private: bool bLoad = false; HMODULE hModule = nullptr; PFN_IcmpCreateFile fnIcmpCreateFile = nullptr; PFN_IcmpSendEcho fnIcmpSendEcho = nullptr; PFN_IcmpParseReplies fnIcmpParseReplies = nullptr; PFN_IcmpCloseHandle fnIcmpCloseHandle = nullptr; bool IsAvailable() { return ((fnIcmpCreateFile != nullptr) && (fnIcmpSendEcho != nullptr) && (fnIcmpParseReplies != nullptr) && (fnIcmpCloseHandle != nullptr)); } public: static bool Ping(const std::string& ip) { PintUtil pu = PintUtil(); bool result = false; DWORD dwRet = 0; // Declare and initialize variables HANDLE hIcmpFile = INVALID_HANDLE_VALUE; unsigned long ipaddr = INADDR_NONE; char SendData[4] = "ACK"; DWORD ReplySize = sizeof(ICMP_ECHO_REPLY) + sizeof(SendData); BYTE ReplyBuffer[sizeof(ICMP_ECHO_REPLY) + sizeof(SendData)] = { 0 }; if (pu.IsAvailable()) { // Validate the parameters ipaddr = inet_addr(ip.c_str()); if (ipaddr == INADDR_NONE) { return false; } hIcmpFile = pu.fnIcmpCreateFile(); if (hIcmpFile != INVALID_HANDLE_VALUE) { dwRet = pu.fnIcmpSendEcho(hIcmpFile, ipaddr, SendData, sizeof(SendData), NULL, ReplyBuffer, ReplySize, 1000); if (dwRet != 0) { PICMP_ECHO_REPLY pEchoReply = (PICMP_ECHO_REPLY)ReplyBuffer; if (pEchoReply->Status == IP_SUCCESS) { result = true; } } pu.fnIcmpCloseHandle(hIcmpFile); } } return result; } #endif };
收藏的用户(0)
X
正在加载信息~
2
最新回复 (0)