xref: /freebsd/usr.bin/cap_mkdb/cap_mkdb.1 (revision fed1ca4b719c56c930f2259d80663cd34be812bb)
1.\" Copyright (c) 1992, 1993
2.\"	The Regents of the University of California.  All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\"    notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\"    notice, this list of conditions and the following disclaimer in the
11.\"    documentation and/or other materials provided with the distribution.
12.\" 4. Neither the name of the University nor the names of its contributors
13.\"    may be used to endorse or promote products derived from this software
14.\"    without specific prior written permission.
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26.\" SUCH DAMAGE.
27.\"
28.\"	@(#)cap_mkdb.1	8.1 (Berkeley) 6/6/93
29.\" $FreeBSD$
30.\"
31.Dd February 22, 2005
32.Dt CAP_MKDB 1
33.Os
34.Sh NAME
35.Nm cap_mkdb
36.Nd create capability database
37.Sh SYNOPSIS
38.Nm
39.Op Fl b | l
40.Op Fl v
41.Op Fl f Ar outfile
42.Ar
43.Sh DESCRIPTION
44The
45.Nm
46utility builds a hashed database out of the
47.Xr getcap 3
48logical database constructed by the concatenation of the specified
49files.
50.Pp
51The database is named by the basename of the first file argument and
52the string
53.Dq .db .
54The
55.Xr getcap 3
56routines can access the database in this form much more quickly
57than they can the original text file(s).
58.Pp
59The ``tc'' capabilities of the records are expanded before the
60record is stored into the database.
61.Pp
62The following options are available:
63.Bl -tag -width indent
64.It Fl b
65Use big-endian byte order for database metadata.
66.It Fl f Ar outfile
67Specify a different database basename.
68.It Fl l
69Use little-endian byte order for database metadata.
70.It Fl v
71Print out the number of capability records in the database.
72.El
73.Pp
74The
75.Fl b
76and
77.Fl l
78flags are mutually exclusive.
79The default byte ordering is the current host order.
80.Sh FORMAT
81Each record is stored in the database using two different types of keys.
82.Pp
83The first type is a key which consists of the first capability of
84the record (not including the trailing colon (``:'')) with a data
85field consisting of a special byte followed by the rest of the record.
86The special byte is either a 0 or 1, where a 0 means that the record
87is okay, and a 1 means that there was a ``tc'' capability in the record
88that could not be expanded.
89.Pp
90The second type is a key which consists of one of the names from the
91first capability of the record with a data field consisting a special
92byte followed by the first capability of the record.
93The special byte is a 2.
94.Pp
95In normal operation names are looked up in the database, resulting
96in a key/data pair of the second type.
97The data field of this key/data pair is used to look up a key/data
98pair of the first type which has the real data associated with the
99name.
100.Sh EXIT STATUS
101.Ex -std
102.Sh SEE ALSO
103.Xr dbopen 3 ,
104.Xr getcap 3 ,
105.Xr termcap 5
106