30d21d2795
This function returns the path to the local software base directory, by default "/usr/local" (or the value of _PATH_LOCALBASE in include/paths.h when building the world). The value returned can be overridden by 2 methods: - the LOCALBASE environment variable (ignored by SUID programs) - else a non-default user.localbase sysctl value Reviewed by: hps (earlier version) Relnotes: yes Differential Revision: https://reviews.freebsd.org/D27236
100 lines
2.9 KiB
Groff
100 lines
2.9 KiB
Groff
.\"
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.\" SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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.\"
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.\" Copyright 2020 Scott Long
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.\" Copyright 2020 Stefan Eßer
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 18, 2020
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.Dt GETLOCALBASE 3
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.Os
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.Sh NAME
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.Nm getlocalbase
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.Nd "return the path to the local software directory"
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.Sh LIBRARY
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.Lb libutil
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.Sh SYNOPSIS
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.In libutil.h
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.Ft const char*
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.Fn getlocalbase "void"
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.Sh DESCRIPTION
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The
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.Fn getlocalbase
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function returns the path to the local software base directory.
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Normally this is the
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.Pa /usr/local
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directory.
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First the
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.Ev LOCALBASE
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environment variable is checked.
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If that does not exist then the
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.Va user.localbase
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sysctl is checked.
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If that also does not exist then the value of the
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.Dv _PATH_LOCALBASE
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compile-time variable is used.
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If that is undefined then the default of
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.Pa /usr/local
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is used.
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.Pp
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The value returned by the
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.Fn getlocalbase
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function shall not be modified.
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.Sh IMPLEMENTATION NOTES
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Calls to
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.Fn getlocalbase
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will perform a setugid check on the running binary before checking the
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environment.
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.Sh RETURN VALUES
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The
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.Fn getlocalbase
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function always succeeds and returns a pointer to a string, whose length
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may exceed MAXPATHLEN if it has been derived from the environment variable
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LOCALBASE.
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No length checks are performed on the result.
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.Sh ENVIRONMENT
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The
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.Fn getlocalbase
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library function retrieves the
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.Ev LOCALBASE
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environment variable.
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.Sh ERRORS
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The
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.Fn getlocalbase
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function always succeeds.
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.Sh SEE ALSO
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.Xr env 1 ,
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.Xr src.conf 5 ,
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.Xr sysctl 8
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.Sh HISTORY
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The
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.Nm
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library function first appeared in
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.Fx 13.0 .
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.Sh AUTHORS
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This
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manual page was written by
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.An Scott Long Aq Mt scottl@FreeBSD.org and Stefan Eßer Aq Mt se@FreeBSD.org .
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