2000-08-31 15:56:15 +00:00
|
|
|
.\"
|
|
|
|
|
.\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" 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. The name of the author may not be used to endorse or promote products
|
|
|
|
|
.\" derived from this software without specific prior written permission.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
|
|
|
|
|
.\"
|
|
|
|
|
.\" $OpenBSD: basename.3,v 1.12 2000/04/18 03:01:25 aaron Exp $
|
|
|
|
|
.\" $FreeBSD$
|
|
|
|
|
.\"
|
|
|
|
|
.Dd August 17, 1997
|
|
|
|
|
.Dt BASENAME 3
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm basename
|
|
|
|
|
.Nd extract the base portion of a pathname
|
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
|
.Fd #include <libgen.h>
|
|
|
|
|
.Ft char *
|
|
|
|
|
.Fn basename "const char *path"
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
The
|
|
|
|
|
.Fn basename
|
|
|
|
|
function
|
|
|
|
|
returns the last component from the pathname pointed to by
|
|
|
|
|
.Ar path ,
|
|
|
|
|
deleting any trailing
|
|
|
|
|
.Sq \&/
|
|
|
|
|
characters.
|
|
|
|
|
If
|
|
|
|
|
.Ar path
|
|
|
|
|
consists entirely of
|
|
|
|
|
.Sq \&/
|
|
|
|
|
characters, a pointer to the string
|
|
|
|
|
.Qq \&/
|
|
|
|
|
is returned.
|
|
|
|
|
If
|
|
|
|
|
.Ar path
|
|
|
|
|
is a null pointer or the empty string, a pointer to the string
|
|
|
|
|
.Qq \&.
|
|
|
|
|
is returned.
|
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
|
On successful completion,
|
|
|
|
|
.Fn basename
|
|
|
|
|
returns a pointer to the last component of
|
|
|
|
|
.Ar path .
|
|
|
|
|
.Pp
|
|
|
|
|
If
|
|
|
|
|
.Fn basename
|
|
|
|
|
fails, a null pointer is returned and the global variable
|
|
|
|
|
.Va errno
|
|
|
|
|
is set to indicate the error.
|
|
|
|
|
.Sh ERRORS
|
|
|
|
|
The following error codes may be set in
|
|
|
|
|
.Va errno :
|
|
|
|
|
.Bl -tag -width Er
|
|
|
|
|
.It Bq Er ENAMETOOLONG
|
|
|
|
|
The path component to be returned was larger than
|
|
|
|
|
.Dv MAXPATHLEN .
|
|
|
|
|
.El
|
|
|
|
|
.Sh WARNINGS
|
|
|
|
|
.Fn basename
|
|
|
|
|
returns a pointer to internal static storage space that will be overwritten
|
|
|
|
|
by subsequent calls.
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr basename 1 ,
|
|
|
|
|
.Xr dirname 1 ,
|
|
|
|
|
.Xr dirname 3
|
|
|
|
|
.Sh STANDARDS
|
|
|
|
|
The
|
|
|
|
|
.Fn basename
|
|
|
|
|
function conforms to
|
|
|
|
|
.St -xpg4.2 .
|
|
|
|
|
.Sh HISTORY
|
|
|
|
|
The
|
|
|
|
|
.Fn basename
|
|
|
|
|
function first appeared in
|
2001-07-10 00:11:00 +00:00
|
|
|
.Ox 2.2
|
|
|
|
|
and
|
|
|
|
|
.Fx 4.2 .
|
2000-11-17 11:44:16 +00:00
|
|
|
.Sh AUTHORS
|
2000-08-31 15:56:15 +00:00
|
|
|
Todd C. Miller <Todd.Miller@courtesan.com>
|
