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opendir(3) -- Linux man page
NAME
opendir - open a directory
SYNOPSIS
#include <sys/types.h>
#include <dirent.h>
DIR *opendir(const char *name);
DESCRIPTION
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.
RETURN VALUE
The opendir() function returns a pointer to the directory stream or
NULL if an error occurred.
ERRORS
- 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.
NOTES
The underlying file descriptor of the directory stream can be obtained using
dirfd(3).
CONFORMING TO
SVID 3, POSIX, BSD 4.3
SEE ALSO
open(2),
closedir(3),
dirfd(3),
readdir(3),
rewinddir(3),
scandir(3),
seekdir(3),
telldir(3)
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