OPENDIR

opendir − open a directory

#include <sys/types.h>

#include <dirent.h>

DIR *opendir(const char *name);

The opendir() function opens a directory stream corresponding to the directory name, and returns a pointer to the directory stream. The stream is positioned at the first entry in the directory.

The opendir() function returns a pointer to the directory stream or NULL if an error occurred.

EACCES

Permission denied.

EMFILE

Too many file descriptors in use by process.

ENFILE

Too many files are currently open in the system.

ENOENT

Directory does not exist, or name is an empty string.

ENOMEM

Insufficient memory to complete the operation.

ENOTDIR

name is not a directory.

SVID 3, POSIX, BSD 4.3

open(2), readdir(3), closedir(3), rewinddir(3), seekdir(3), telldir(3), scandir(3)