用C语言创建只读文件夹

Question

I am using C language and Linux OS as my programming platform. And I want to know how can I make a read-only folder programmatically? Is there any mkdir command in C language for Linux or Unix-like system?

Thanks.

Answer 1

做到这一点的方法是使用mkdir(2)创建文件夹，用所需的文件填充该文件夹，使用stat(2)获取当前权限，屏蔽掉写入位，然后使用chmod(2)设置权限。

Answer 2

You can make use of the mkdir system call:

int mkdir (const char *filename, mode_t mode);

To make the newly created folder RO (no write and no execute permission) you can make use of the mode parameter as described here

Answer 3

You can use this one:

#include <sys/stat.h>
#include <sys/types.h>

int mkdir(const char *pathname, mode_t mode);

Answer 4

You can use the mkdir() function

Synopsis:

#include <sys/stat.h>

int mkdir(const char *path, mode_t mode);

For example to create a folder named 'hello' that is accessible only by the current user:

mkdir("hello", 0700); /*the second argument is the permission mask*/

For further info type on the terminal

man 2 mkdir

If you feel creative you can do this in a more naive way

system("mkdir hello");
system("chmod 700 hello");

but there's no reason to do that...

Answer 5

umask应该工作

#include <stat.h>