c端口扫描代码

#include <stdafx.h>#include <stdio.h>#include <string.h>#include <winsock.h>#pragma comment (lib,"ws2_32.lib")int main(int argc, char *argv[]) {int mysocket;int pcount = 0;struct sockaddr_in my_addr;WSADATA wsaData;WORD wVersionRequested=MAKEWORD(1,1);if(argc < 3) {printf("usage: %s <host> <maxport>\n", argv[0]);exit(1);}if (WSAStartup(wVersionRequested , &wsaData)){printf("Winsock Initialization failed.\n");exit(1);}for(int i=1; i < atoi(argv[2]); i++){if((mysocket = socket(AF_INET, SOCK_STREAM,0)) == INV ALID_SOCKET){ printf("Socket Error");exit(1);}my_addr.sin_family = AF_INET;my_addr.sin_port = htons(i);my_addr.sin_addr.s_addr = inet_addr(argv[1]);if(connect(mysocket, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == SOCKET_ERROR)closesocket(mysocket);else{pcount++;printf("Port %d - open\n", i);}}printf("%d ports open on host - %s\n", pcount, argv[1]);closesocket(mysocket);WSACleanup();return 0;}代码二：#include <afxext.h>#include <winsock.h>// 编译时需使用的库#pragma comment(lib,"wsock32.lib")// select()成员定义#define ZERO (fd_set *)0// 变量定义int maxth, scanok, scannum;int portip, hoststart, hoststop, startport, endport; //定义了开始I和结束P地址，开始和结束端口long searchnum, searched;void usage(char *); // 定义显示使用方法函数void playx(int); // 定义状态提示函数void setip2(char *); // 定义设置IP函数void customport(char *, char *, char *); // 定义自定义扫描端口函数void portscannow(int); // 定义端口扫描扫描// 主程序int main(int argc, char *argv[]){WSADATA wsadata;// 清屏system("cls.exe");// 显示版本信息printf("\r\n==================== HUC Command Line PortScanner V0.2 ====================");printf("\r\n=============== By Lion, Welcome to [url][/url] ===============\r\n\n");// 检查输入if ((argc < 3) || (argc > 4)){// 显示帮助提示usage(argv[0]);return -1;}// 检测是否为port扫描if(!(stricmp(strlwr(argv[1]), "-p") == 0)){usage(argv[0]);return -1;}// 程序初始化if (WSAStartup(MAKEWORD(1,1), &wsadata) != 0) //如果初始化错误{printf("\r\nWsatartup error"); //出错信息return -1;}// 端口扫描参数转换// 如果参数为三个if (argc == 3){// 直接设置IPsetip2(argv[2]);}// 如果参数为四个elseif (argc == 4){// 进入定制端口扫描处理customport(argv[0], argv[2], argv[3]);}// 参数过多显示帮助else{usage(argv[0]);return -1;}// 扫描端口开始portscannow(argc);WSACleanup();return 0;}// 帮助提示函数void usage(char * prog){printf("Usage: %s <Option>", prog);printf("\r\n\n <Option>:");printf("\r\n -p [ Port|StartPort-EndPort ] < HostName|IP|StartIP-EndIP >"); printf("\r\n\n Example: ");printf("\r\n %s -p 192.168.0.1", prog);printf("\r\n %s -p 192.168.0.1-192.168.0.254", prog);printf("\r\n %s -p 21-80 192.168.0.1", prog);printf("\r\n %s -p 21-80 192.168.0.1-192.168.0.254\r\n", prog);return;}// 进度提示void playx(int play = 0){// 进度条char *plays[12]={" | "," / "," - "," \\ "," | "," / "," - "," \\ "," | "," / "," - "," \\ ",};if (searchnum != 0){for (int i = 0 ; i <= 3; i ++){printf(" =%s= %d%s Completed. \r", plays[i] , searched * 100 / (searchnum + 1), "%"); Sleep(5);}}else{printf(" =%s=\r", plays[play]); //显示进度Sleep(10);}}// 设置IPvoid setip2(char *cp){int host;struct hostent *testhost;char *startip = "", *endip = "";// 判断是否为192.168.0.1-192.168.0.254 形式的输入if (strstr(cp, "-") && strlen(cp) > 15 && strlen(cp) < 32){// 提取出结束IPendip = strchr(cp, ''-'') + 1;// 提取出开始IPstrncpy(startip, cp, strlen(cp) - strlen(strchr(cp, ''-'')));// 给控制要扫描IP段的变量赋值hoststart = ntohl(inet_addr(startip));hoststop = ntohl(inet_addr(endip));}else{// 取得输入的主机地址testhost = gethostbyname(startip);// 如果地址不存在if(!testhost){WSACleanup( );printf("\r\nCan''t get ip of: %s", cp);exit(-1);}// 给控制要扫描IP段的变量赋值memcpy(&host, testhost->h_addr, 4);hoststop = hoststart = ntohl(host);}}// 测试线程是否已满void TestThread(int thread = 200){for (;;){playx();// 测试线程是否已满if (maxth > thread)Sleep(100);else break;}return;}// 等待线程结束函数void WaitThreadEnd(){// 延时Sleep(6000);// 显示等待提示printf("\r \r\n");printf(" Wait ( %d )Thread end...\r\n", maxth);for(;;){// 判断所有线程是否已经结束if (maxth > 0){// 延时等待线程序结束Sleep(100);playx();continue;}else break;}printf("\r\n");return;}// 定制端口扫描参数定义void customport(char *cp, char *cp2, char *cp3) {int intport;char *checker;// 处理要扫描的端口// 扫描开始端口变量赋值startport = atoi(cp2);// 扫描结束端口变量赋值endport = atoi(cp2);// 判断是否21-80 形式if (strstr(cp2,"-")){intport = atoi(checker = strchr(cp2, ''-'') + 1);if (intport > 0 && intport < 65536)// 扫描结束端口变量赋值endport = intport;}// 端口大小判断if (startport < 0 || startport > 65536 || endport < 0 || endport > 65535) {usage(cp);exit(-1);}// 处理ip地址setip2(cp3);}// 端口扫描函数UINT portscan(LPVOID port){int addr = portip; // 取得要扫描的地址int sock;struct fd_set mas。