|Return to dirname.3 CVS log||Up to [cvs.NetBSD.org] / src / lib / libc / gen|
|File: [cvs.NetBSD.org] / src / lib / libc / gen / dirname.3 (download)
Revision 1.11, Sat Sep 6 20:58:39 2003 UTC (16 years, 2 months ago) by kleink
Add Xref to dirname(1).
.\" $NetBSD: dirname.3,v 1.11 2003/09/06 20:58:39 kleink Exp $ .\" .\" Copyright (c) 1997, 2002 The NetBSD Foundation, Inc. .\" All rights reserved. .\" .\" This code is derived from software contributed to The NetBSD Foundation .\" by Klaus Klein and Jason R. Thorpe. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by the NetBSD .\" Foundation, Inc. and its contributors. .\" 4. Neither the name of The NetBSD Foundation nor the names of its .\" contributors may be used to endorse or promote products derived .\" from this software without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED .\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR .\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS .\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN .\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE .\" POSSIBILITY OF SUCH DAMAGE. .\" .Dd October 16, 2002 .Dt DIRNAME 3 .Os .Sh NAME .Nm dirname .Nd report the parent directory name of a file pathname .Sh LIBRARY .Lb libc .Sh SYNOPSIS .In libgen.h .Ft char * .Fn dirname "char *path" .Sh DESCRIPTION The .Fn dirname function takes a pointer to a character string that contains a pathname, .Ar path , and returns a pointer to a string that is a pathname of the parent directory of .Ar path . Trailing .Sq / characters in .Ar path are not counted as part of the path. .Pp If .Ar path does not contain a .Sq / , then .Fn dirname returns a pointer to the string .Dq \&. . .Pp If .Ar path is a null pointer or points to an empty string, .Fn dirname returns a pointer to the string .Dq \&. . .Sh RETURN VALUES The .Fn dirname function returns a pointer to a string that is the parent directory of .Ar path . .Sh SEE ALSO .Xr dirname 1 , .Xr basename 3 .Sh STANDARDS .Bl -bullet -compact .It .St -xpg4.2 .It .St -p1003.1-2001 .El .Sh BUGS If the length of the result is longer than .Dv PATH_MAX bytes .Pq including the terminating nul , the result will be truncated. .Pp The .Fn dirname function returns a pointer to static storage that may be overwritten by subsequent calls to .Fn dirname . This is not strictly a bug; it is explicitly allowed by .St -p1003.1-2001 .