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CAP_MKDB(1) BSD General Commands Manual CAP_MKDB(1)
NAME
cap_mkdb -- create capability database
SYNOPSIS
cap_mkdb [-v] [-f outfile] file1 [file2 ...]
DESCRIPTION
Cap_mkdb builds a hashed database out of the getcap(3) logical database constructed by the concatena-tion concatenation
tion of the specified files .
The database is named by the basename of the first file argument and the string ``.db''. The getcap(3)
routines can access the database in this form much more quickly than they can the original text
file(s).
The ``tc'' capabilities of the records are expanded before the record is stored into the database.
The options as as follows:
-f outfile
Specify a different database basename.
-v Print out the number of capability records in the database.
FORMAT
Each record is stored in the database using two different types of keys.
The first type is a key which consists of the first capability of the record (not including the trail-ing trailing
ing colon (``:'')) with a data field consisting of a special byte followed by the rest of the record.
The special byte is either a 0 or 1, where a 0 means that the record is okay, and a 1 means that there
was a ``tc'' capability in the record that couldn't be expanded.
The second type is a key which consists of one of the names from the first capability of the record
with a data field consisting a special byte followed by the the first capability of the record. The
special byte is a 2.
In normal operation names are looked up in the database, resulting in a key/data pair of the second
type. The data field of this key/data pair is used to look up a key/data pair of the first type which
has the real data associated with the name.
RETURN VALUE
The cap_mkdb utility exits 0 on success and >0 if an error occurs.
SEE ALSO
dbopen(3), getcap(3), termcap(5)
BSD October 15, 2009 BSD
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