Computer Science


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

NAME
       readdir - read a directory

SYNOPSIS
       #include <sys/types.h>

       #include <dirent.h>

       struct dirent *readdir(DIR *dir);

DESCRIPTION
       The  readdir()  function  returns  a  pointer  to a dirent
       structure representing the next  directory  entry  in  the
       directory  stream  pointed  to be dir.  It returns NULL on
       reaching the end-of-file or if an error occurred.

       The data returned by readdir() is  overwritten  by  subse-
       quent calls to readdir() for the same directory stream.

       According  to POSIX, the dirent structure contains a field
       char d_name[] of unspecified size, with at  most  NAME_MAX
       characters  preceding the terminating null character.  Use
       of other fields will harm the  portability  of  your  pro-
       grams.

RETURN VALUE
       The  readdir()  function  returns  a  pointer  to a dirent
       structure, or NULL if an error occurs  or  end-of-file  is
       reached.

ERRORS
       EBADF  Invalid directory stream descriptor dir.

CONFORMING TO
       SVID 3, POSIX, BSD 4.3

SEE ALSO
       read(2),     opendir(3),     closedir(3),    rewinddir(3),
       seekdir(3), telldir(3), scandir(3)

                          22 April 1996                         1

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