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OPENDIR(3)                 Linux Programmer's Manual                OPENDIR(3)

       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 suc-
       cessful  call  to fdopendir(), fd is used internally by the implementa-
       tion, and should not otherwise be used by the application.

       The opendir() and fdopendir() functions return a pointer to the  direc-
       tory  stream.   On  error, NULL is returned, and errno is set appropri-

       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.

              name is not a directory.

       fdopendir() is available in glibc since version 2.4.

       opendir() is present on SVr4, 4.3BSD, and  specified  in  POSIX.1-2001.
       fdopendir() is under consideration for inclusion in the next version of

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

       The  opendir()  function  sets  the  close-on-exec  flag  for  the file
       descriptor underlying the DIR *.  The fdopendir() function  leaves  the
       setting  of  the  close-on-exec flag unchanged for the file descriptor,

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

       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at

                                  2008-04-25                        OPENDIR(3)

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