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110 lines
3.9 KiB
Groff
110 lines
3.9 KiB
Groff
.\" Copyright (c) 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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.\" @(#)cap_mkdb.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd February 22, 2005
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.Dt CAP_MKDB 1
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.Os
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.Sh NAME
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.Nm cap_mkdb
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.Nd create capability database
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.Sh SYNOPSIS
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.Nm
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.Op Fl b | l
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.Op Fl v
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.Op Fl f Ar outfile
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.Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility builds a hashed database out of the
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.Xr getcap 3
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logical database constructed by the concatenation of the specified
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files.
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.Pp
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The database is named by the basename of the first file argument and
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the string
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.Dq .db .
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The
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.Xr getcap 3
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routines can access the database in this form much more quickly
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than they can the original text file(s).
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.Pp
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The ``tc'' capabilities of the records are expanded before the
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record is stored into the database.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl b
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Use big-endian byte order for database metadata.
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.It Fl f Ar outfile
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Specify a different database basename.
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.It Fl l
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Use little-endian byte order for database metadata.
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.It Fl v
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Print out the number of capability records in the database.
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.El
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.Pp
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The
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.Fl b
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and
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.Fl l
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flags are mutually exclusive.
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The default byte ordering is the current host order.
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.Sh FORMAT
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Each record is stored in the database using two different types of keys.
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.Pp
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The first type is a key which consists of the first capability of
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the record (not including the trailing colon (``:'')) with a data
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field consisting of a special byte followed by the rest of the record.
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The special byte is either a 0 or 1, where a 0 means that the record
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is okay, and a 1 means that there was a ``tc'' capability in the record
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that could not be expanded.
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.Pp
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The second type is a key which consists of one of the names from the
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first capability of the record with a data field consisting a special
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byte followed by the first capability of the record.
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The special byte is a 2.
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.Pp
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In normal operation names are looked up in the database, resulting
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in a key/data pair of the second type.
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The data field of this key/data pair is used to look up a key/data
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pair of the first type which has the real data associated with the
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name.
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr dbopen 3 ,
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.Xr getcap 3 ,
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.Xr termcap 5
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