(libc.info.gz) Accessing Directories

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 14.2 Accessing Directories
 ==========================
 
 The facilities described in this section let you read the contents of a
 directory file.  This is useful if you want your program to list all the
 files in a directory, perhaps as part of a menu.
 
    The 'opendir' function opens a "directory stream" whose elements are
 directory entries.  Alternatively 'fdopendir' can be used which can have
 advantages if the program needs to have more control over the way the
 directory is opened for reading.  This allows, for instance, to pass the
 'O_NOATIME' flag to 'open'.
 
    You use the 'readdir' function on the directory stream to retrieve
 these entries, represented as 'struct dirent' objects.  The name of the
 file for each entry is stored in the 'd_name' member of this structure.
 There are obvious parallels here to the stream facilities for ordinary
 files, described in  I/O on Streams.
 

Menu

 
* Directory Entries           Format of one directory entry.
* Opening a Directory         How to open a directory stream.
* Reading/Closing Directory   How to read directory entries from the stream.
* Simple Directory Lister     A very simple directory listing program.
* Random Access Directory     Rereading part of the directory
                                  already read with the same stream.
* Scanning Directory Content  Get entries for user selected subset of
                                  contents in given directory.
* Simple Directory Lister Mark II  Revised version of the program.
 

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