NetBSD/lib/libc/gen/basename.3

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.\" $NetBSD: basename.3,v 1.6 2001/09/16 02:57:03 wiz Exp $
.\"
.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Klaus Klein.
.\"
.\" 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
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" 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 31, 1997
.Dt BASENAME 3
.Os
.Sh NAME
.Nm basename
.Nd return the last component of a pathname
1998-02-05 21:45:17 +03:00
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.Fd #include <libgen.h>
.Ft char *
.Fn basename "char *path"
.Sh DESCRIPTION
The
.Fn basename
function takes the pathname pointed to by
.Ar path
and returns a pointer to the final component of the pathname,
deleting and trailing '/' characters.
.Pp
If
.Ar path
consists entirely of '/' characters,
.Fn basename
returns a pointer to the string "/".
.Pp
If
.Ar path
is a null pointer or points to an empty string,
.Fn basename
returns a pointer to the string ".".
.Sh RETURN VALUES
The
.Fn basename
function returns a pointer to the final component of
.Ar path .
.Sh SEE ALSO
.Xr dirname 3
.Sh STANDARDS
.Bl -bullet -compact
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.It
.St -xpg4.2
2001-09-16 06:30:23 +04:00
.El
.Sh BUGS
The
.Fn basename
function may modify the string pointed to by
.Ar path .