dup2 c
對一般程式來說，管線(pipe)機制很少會用到，尤其對於在Windows 底下的程式開發者來說，很可能前所未聞，而在Unix-like 環境中常見的例子，就是往往在命令後面 ... ,dup2 doesn't switch the file descriptors, it makes them equivalent. After dup2(f1, 0) , whatever file was opened on descriptor f1 is now also opened (with the ...
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 dup2 c 相關參考資料
dup2(2): duplicate file descriptor - Linux man page
dup2() makes newfd be the copy of oldfd, closing newfd first if necessary, but note the following: * If oldfd is not a valid file descriptor, then the call ... https://linux.die.net fork()、pipe()、dup2() 和execlp() - Fred's blog
對一般程式來說，管線(pipe)機制很少會用到，尤其對於在Windows 底下的程式開發者來說，很可能前所未聞，而在Unix-like 環境中常見的例子，就是往往在命令後面 ... http://fred-zone.blogspot.com What does dup2() do in C - Stack Overflow
dup2 doesn't switch the file descriptors, it makes them equivalent. After dup2(f1, 0) , whatever file was opened on descriptor f1 is now also opened (with the ... https://stackoverflow.com C语言dup和dup2函数- life_liver的专栏- CSDN博客
C语言dup和dup2函数. 2013年01月29日21:17:58 life_liver 阅读数：1870. 功能：复制文件描述符. 头文件：#include<unistd.h>. 函数原型：int dup(int oldfd). https://blog.csdn.net dup(2) - Linux manual page - man7.org
#include <unistd.h> int dup(int oldfd); int dup2(int oldfd, int newfd); #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <fcntl.h> /* Obtain O_* ... http://man7.org C语言dup2()函数：复制文件描述词_C语言中文网
相关函数open, close, fcntl, dup 头文件#include unistd.h 定义函数int dup2(int odlfd, int newfd); 函数说明dup2()用来复制参数oldfd 所指的文件描述词, 并将它拷贝至 ... http://c.biancheng.net C语言中dup和dup2函数的不同和使用- 快乐编程
在unix高级编程中有介绍dup和dup2，但是没有实例说明， 笔者自己结合实例进行了测试了解。 在linux下，通过open打开以文件后，会返回一个文件 ... http://www.01happy.com dup() and dup2() Linux system call - GeeksforGeeks
After running the C program shown above, the file “dup.txt” is as shown below: ... int dup2(int oldfd, int newfd); oldfd: old file descriptor newfd new file descriptor ... https://www.geeksforgeeks.org dup2 (C System Call) - Code Wiki
dup2 is a system call similar to dup in that it duplicates one file descriptor, making them aliases, and then deleting the old file descriptor. http://codewiki.wikidot.com [C code] dup() dup2() 奇妙的FD複製.... - 筆記人生
好吧... 是突然看到 -- close(0); close(1); close(2); if (!tty || !*tty) if (open("/dev/null", O_RDWR|O_NONBLOCK) >= 0) dup(0), dup(0); return; https://bjglife.blogspot.com |