一个进程在向管道写入数据后，另 一进程就可以从管道的另一端将其读取出来。匿名管道（Anonymous Pipes）是在父进程和子进程间单向传输数据的一种未命名的管道，只能在本地计算机中使用，而不可用于网络间的通信。
&newtokenHandle)) { printf("[!] Error duplicating thread token %d\n", GetLastError()); CloseHandle(hPipe); return -1; } printf("[+] DuplicateTokenEx Successfully\n"); wchar_t cmdPath[MAX_PATH] = L"c:\\windows\\system32\\cmd.exe"; //这个函数允许在具有特定身份验证的情况下启动一个...
int r_num; int cmd; memset(r_buf,0,sizeof(r_buf)); memset(w_buf,0,sizeof(r_buf)); p_wbuf=w_buf; if(pipe(pipe_fd)<0) { printf("pipe create error "); return -1; } if((pid=fork())==0) { printf(" "); close(pipe_fd[1]); sleep⑶;//确保子进程关闭写端 r_num=re...
fprintf(stderr, "usage: pipe cmd1 cmd2\n"); exit(1); } if ( pipe( thepipe ) == -1 ) oops("Cannot get a pipe", 1); if ( (pid = fork()) == -1 ) oops("Cannot fork", 2); if ( pid > 0 ){ close(thepipe[1]); if ( dup2(thepipe[0], 0) =...
static int semctl_main(struct ipc_namespace *ns, intsemid, int semnum, intcmd, int version, unionsemun arg) { structsem_array *sma; structsem* curr; interr; ushort fast_sem_io[SEMMSL_FAST]; ushort* sem_io = fast_sem_io; intnsems; sma = sem_lock_check(ns, semid); if(IS_ERR...
pipe管道 cmd..Option Explicit'The CreatePipe function creates an anonymous pipe,'and returns handles to the read a
我一直在尝试创建一个执行 cmd.exe 的子进程,命令行指定 /K dir 。目的是使用管道将命令的输出读回父进程。我已经 CreateProcess() 工作,但是涉及管道的步骤给我带来了麻烦。使用管道,新的控制台窗口没有显示(就像以前一样),并且父进程卡在对 ReadFile() 的调用中。
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其中需要用到几个Windows API :CreatePipe, DuplicateHandle, CreateProcess, ReadFile, WriteFile等,函数详解可参见MSDN. 一、编程实现原理 ( C语言) view plaincopy to clipboard #include <windows.h> //定义句柄: 构成stdin管道的两端句柄 HANDLE hStdInRead; //子进程用的stdin的读入端 ...