我如何检查这是目录路径还是文件名路径？ [英] How can I check whether this is directory-path or any filename-path?

问题描述

这个

为什么fopen（any_path_name，r）不给NULL作为返回？

我得到要知道在linux目录和文件被认为是文件。所以当我在fopen中给任何目录路径或文件路径读取模式时，它不会给出空文件描述符和？

i get to know that in linux directories and files are considered to be file. so when i give any directory-path or file-path in fopen with read mode it doesnt give NULL file descriptor and?

所以我如何检查是否是dirctory路径或文件路径？如果我从命令参数中获得一些路径？

so how can i check that whether it is dirctory path or file-path ? if i am getting some path from command argument?

推荐答案

man 2 stat ：

NAME
     fstat, fstat64, lstat, lstat64, stat, stat64 -- get file status

...

     struct stat {
         dev_t           st_dev;           /* ID of device containing file */
         mode_t          st_mode;          /* Mode of file (see below) */

...

     The status information word st_mode has the following bits:

...

     #define        S_IFDIR  0040000  /* directory */

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