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Revision 1.11, Sat Sep 6 20:58:39 2003 UTC (16 years, 2 months ago) by kleink
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-base, keiichi-mipv6, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: yamt-pf42
Changes since 1.10: +2 -1 lines

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.
.\"
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.\" modification, are permitted provided that the following conditions
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.\"    must display the following acknowledgement:
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.\"        Foundation, Inc. and its contributors.
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.\"
.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 .