xref: /freebsd/usr.bin/cap_mkdb/cap_mkdb.1 (revision 6af83ee0d2941d18880b6aaa2b4facd1d30c6106)
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32.\"	@(#)cap_mkdb.1	8.1 (Berkeley) 6/6/93
33.\" $FreeBSD$
34.\"
35.Dd June 6, 1993
36.Dt CAP_MKDB 1
37.Os
38.Sh NAME
39.Nm cap_mkdb
40.Nd create capability database
41.Sh SYNOPSIS
42.Nm
43.Op Fl v
44.Op Fl f Ar outfile
45.Ar file
46.Op Ar
47.Sh DESCRIPTION
48The
49.Nm
50utility builds a hashed database out of the
51.Xr getcap 3
52logical database constructed by the concatenation of the specified
53files.
54.Pp
55The database is named by the basename of the first file argument and
56the string
57.Dq .db .
58The
59.Xr getcap 3
60routines can access the database in this form much more quickly
61than they can the original text file(s).
62.Pp
63The ``tc'' capabilities of the records are expanded before the
64record is stored into the database.
65.Pp
66The following options are available:
67.Bl -tag -width indent
68.It Fl f Ar outfile
69Specify a different database basename.
70.It Fl v
71Print out the number of capability records in the database.
72.El
73.Sh FORMAT
74Each record is stored in the database using two different types of keys.
75.Pp
76The first type is a key which consists of the first capability of
77the record (not including the trailing colon (``:'')) with a data
78field consisting of a special byte followed by the rest of the record.
79The special byte is either a 0 or 1, where a 0 means that the record
80is okay, and a 1 means that there was a ``tc'' capability in the record
81that could not be expanded.
82.Pp
83The second type is a key which consists of one of the names from the
84first capability of the record with a data field consisting a special
85byte followed by the first capability of the record.
86The special byte is a 2.
87.Pp
88In normal operation names are looked up in the database, resulting
89in a key/data pair of the second type.
90The data field of this key/data pair is used to look up a key/data
91pair of the first type which has the real data associated with the
92name.
93.Sh EXIT STATUS
94.Ex -std
95.Sh SEE ALSO
96.Xr dbopen 3 ,
97.Xr getcap 3 ,
98.Xr termcap 5
99