1.\" $NetBSD: cap_mkdb.1,v 1.19 2014/04/13 01:45:34 snj Exp $ 2.\" 3.\" Copyright (c) 1992, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)cap_mkdb.1 8.1 (Berkeley) 6/6/93 31.\" 32.Dd April 5, 2012 33.Dt CAP_MKDB 1 34.Os 35.Sh NAME 36.Nm cap_mkdb 37.Nd create capability database 38.Sh SYNOPSIS 39.Nm 40.Op Fl b | Fl l 41.Op Fl v 42.Op Fl f Ar outfile 43.Ar file1 44.Op Ar file2 ... 45.Sh DESCRIPTION 46.Nm 47builds a hashed database out of the 48.Xr getcap 3 49logical database constructed by the concatenation of the specified 50files. 51.Pp 52The database is named by the basename of the first file argument and 53the string 54.Dq .db . 55The 56.Xr getcap 3 57routines can access the database in this form much more quickly 58than they can the original text file(s). 59.Pp 60The ``tc'' capabilities of the records are expanded before the 61record is stored into the database. 62.Pp 63The options are as follows: 64.Bl -tag -width XXXXXX -offset indent 65.It Fl b 66Use big-endian byte order for database metadata. 67.It Fl f Ar outfile 68Specify a different database basename. 69.It Fl l 70Use little-endian byte order for database metadata. 71.It Fl v 72Print out the number of capability records in the database. 73.El 74.Pp 75The 76.Fl b 77and the 78.Fl l 79flags are mutually exclusive. 80The default byte ordering is the current host order. 81.Sh FORMAT 82The following is a description of the hashed database created by 83.Nm . 84For a description of the format of the input files see 85.Xr capfile 5 . 86.Pp 87Each record is stored in the database using two different types of keys. 88.Pp 89The first type is a key which consists of the first capability of 90the record (not including the trailing colon (``:'')) with a data 91field consisting of a special byte followed by the rest of the record. 92The special byte is either a 0 or 1, where a 0 means that the record 93is okay, and a 1 means that there was a ``tc'' capability in the record 94that couldn't be expanded. 95.Pp 96The second type is a key which consists of one of the names from the 97first capability of the record with a data field consisting a special 98byte followed by the first capability of the record. 99The special byte is a 2. 100.Pp 101In normal operation names are looked up in the database, resulting 102in a key/data pair of the second type. 103The data field of this key/data pair is used to look up a key/data 104pair of the first type which has the real data associated with the 105name. 106.Sh EXIT STATUS 107.Ex -std 108.Sh SEE ALSO 109.Xr dbopen 3 , 110.Xr getcap 3 , 111.Xr capfile 5 112