opendir, fdopendir — open a directory
#include <sys/types.h> #include <dirent.h>
DIR
*opendir( |
const char * | name); |
DIR
*fdopendir( |
int | fd); |
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 fdopendir() is like
opendir(), but returns a
directory stream for the directory referred to by the open
file descriptor fd.
After a successful call to fdopendir(), fd is used internally by the
implementation, and should not otherwise be used by the
application.
The opendir() and
fdopendir() functions return a
pointer to the directory stream. On error, NULL is returned,
and errno is set
appropriately.
Permission denied.
fd is not a
valid file descriptor opened for reading.
Too many file descriptors in use by process.
Too many files are currently open in the system.
Directory does not exist, or name is an empty
string.
Insufficient memory to complete the operation.
name is not
a directory.
opendir() is present on
SVr4, 4.3BSD, and specified in POSIX.1-2001. fdopendir() is under consideration for
inclusion in the next version of POSIX.1.
open(2), closedir(3), dirfd(3), readdir(3), rewinddir(3), scandir(3), seekdir(3), telldir(3)
This page is part of release 2.79 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
|
Copyright (C) 1993 David Metcalfe (davidprism.demon.co.uk) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. References consulted: Linux libc source code Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) 386BSD man pages Modified Sat Jul 24 18:46:01 1993 by Rik Faith (faithcs.unc.edu) Modified 11 June 1995 by Andries Brouwer (aebcwi.nl) 2007-07-30 Ulrich Drepper <drepperredhat.com>: document fdopendir(). |