create capability database
builds a hashed database out of the
database constructed by the concatenation of the specified files.
The database is named by the basename of the first file argument and the string
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 are as follows:
- Specify a different database basename.
- Print out the number of capability records in the
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 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 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
utility exits 0 on success,
and >0 if an error occurs.