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DIRNAME(3)		 BSD Library Functions Manual		    DIRNAME(3)

NAME
     dirname — report the parent directory name of a file pathname

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <libgen.h>

     char *
     dirname(char *path);

DESCRIPTION
     The dirname() function takes a pointer to a character string that con‐
     tains a pathname, path, and returns a pointer to a string that is a path‐
     name of the parent directory of path.  Trailing ‘/’ characters in path
     are not counted as part of the path.

     If path does not contain a ‘/’, then dirname() returns a pointer to the
     string “.”.

     If path is a null pointer or points to an empty string, dirname() returns
     a pointer to the string “.”.

RETURN VALUES
     The dirname() function returns a pointer to a string that is the parent
     directory of path.

SEE ALSO
     dirname(1), basename(3)

STANDARDS
     ·	 X/Open Portability Guide Issue 4, Version 2 (“XPG4.2”)
     ·	 IEEE Std 1003.1-2001 (“POSIX.1”)

BUGS
     If the length of the result is longer than PATH_MAX bytes (including the
     terminating nul), the result will be truncated.

     The dirname() function returns a pointer to static storage that may be
     overwritten by subsequent calls to dirname().  This is not strictly a
     bug; it is explicitly allowed by IEEE Std 1003.1-2001 (“POSIX.1”).

BSD				 May 10, 2008				   BSD

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