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NAME

       opendir, fdopendir - open a directory

SYNOPSIS

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

       DIR *opendir(const char *name);
       DIR *fdopendir(int fd);

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.

       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.

RETURN VALUE

       The opendir()  and  fdopendir()  functions  return  a  pointer  to  the
       directory  stream.   On  error,  NULL  is  returned,  and  errno is set
       appropriately.

ERRORS

       EACCES Permission denied.

       EBADF  fd is not a valid file descriptor opened for reading.

       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.

VERSIONS

       fdopendir() is available in glibc since version 2.4.

CONFORMING TO

       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.

NOTES

       The underlying file descriptor of the directory stream can be  obtained
       using dirfd(3).

SEE ALSO

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

COLOPHON

       This page is part of release 2.77 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/.

                                  2007-07-30                        OPENDIR(3)