windows下将程序io重定向到某端口

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一、引言

在linux下要实现将程序io重定向到某端口只需要一条命令即可：

socatTCP-LISTEN:1234,reuseaddr,fork exec:./test

但在windows下却没有这样的命令，于是写了一个类似的工具。

二、代码

#include <winsock2.h>#include <stdio.h>#pragma comment(lib,"Ws2_32")int main(int argc, char *argv[]){WSADATA ws;SOCKET listenFD;int ret;if(argc != 3){printf("usage: %s port cmdline", argv[0]);}//初始化wsaif(WSAStartup(MAKEWORD(2,2),&ws)!=0){exit(0);}//注意要用WSASocketlistenFD = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, 0);if(listenFD == INVALID_SOCKET){printf("Failed socket()\n");exit(0);}//监听端口struct sockaddr_in server;server.sin_family = AF_INET;server.sin_port = htons(atoi(argv[1]));server.sin_addr.s_addr=ADDR_ANY;ret=bind(listenFD,(sockaddr *)&server,sizeof(server));if(ret == SOCKET_ERROR){printf("failed bind()\n");exit(0);}ret=listen(listenFD, 5);if(ret == SOCKET_ERROR){printf("failed listen()");exit(0);}while(true){int iAddrSize = sizeof(server);SOCKET clientFD=accept(listenFD,(sockaddr *)&server,&iAddrSize);printf("recv connection:%s\n",inet_ntoa(server.sin_addr));STARTUPINFO si;ZeroMemory(&si,sizeof(si));si.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;si.wShowWindow = SW_HIDE;si.wShowWindow = SW_SHOWNORMAL;si.hStdInput = si.hStdOutput = si.hStdError = (void *)clientFD;PROCESS_INFORMATION ProcessInformation;//建立进程ret=CreateProcess(NULL,argv[2],NULL,NULL,1,0,NULL,NULL,&si,&ProcessInformation);if(!ret){printf("createprocess error:%d\n", GetLastError());}}return 0;}

三、参考

q版缓冲区溢出教程第三章

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