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 concatenation 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 trailing colon (``:'')) with a data field con-
sisting of a special byte followed by the rest of the record. The spe-
cial 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 August 11, 2011 BSD
Mac OS X 10.7 - Generated Thu Aug 11 05:49:36 CDT 2011