428 lines
7.9 KiB
Groff
428 lines
7.9 KiB
Groff
'\" t
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.\" Title: ldb
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.\" Author: [see the "Author" section]
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 12/11/2018
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.\" Manual: System Administration tools
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.\" Source: LDB 1.1
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.\" Language: English
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.\"
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.TH "LDB" "3" "12/11/2018" "LDB 1\&.1" "System Administration tools"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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ldb \- A light\-weight database library
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.SH "SYNOPSIS"
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.sp
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.nf
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#include <ldb\&.h>
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.fi
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.SH "DESCRIPTION"
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.PP
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ldb is a light weight embedded database library and API\&. With a programming interface that is very similar to LDAP, ldb can store its data either in a tdb(3) database or in a real LDAP database\&.
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.PP
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When used with the tdb backend ldb does not require any database daemon\&. Instead, ldb function calls are processed immediately by the ldb library, which does IO directly on the database, while allowing multiple readers/writers using operating system byte range locks\&. This leads to an API with very low overheads, often resulting in speeds of more than 10x what can be achieved with a more traditional LDAP architecture\&.
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.PP
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In a taxonomy of databases ldb would sit half way between key/value pair databases (such as berkley db or tdb) and a full LDAP database\&. With a structured attribute oriented API like LDAP and good indexing capabilities, ldb can be used for quite sophisticated applications that need a light weight database, without the administrative overhead of a full LDAP installation\&.
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.PP
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Included with ldb are a number of useful command line tools for manipulating a ldb database\&. These tools are similar in style to the equivalent ldap command line tools\&.
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.PP
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In its default mode of operation with a tdb backend, ldb can also be seen as a "schema\-less LDAP"\&. By default ldb does not require a schema, which greatly reduces the complexity of getting started with ldb databases\&. As the complexity of you application grows you can take advantage of some of the optional schema\-like attributes that ldb offers, or you can migrate to using the full LDAP api while keeping your exiting ldb code\&.
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.PP
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If you are new to ldb, then I suggest starting with the manual pages for ldbsearch(1) and ldbedit(1), and experimenting with a local database\&. Then I suggest you look at the ldb_connect(3) and ldb_search(3) manual pages\&.
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.SH "TOOLS"
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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ldbsearch(1)
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\- command line ldb search utility
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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ldbedit(1)
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\- edit all or part of a ldb database using your favourite editor
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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ldbadd(1)
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\- add records to a ldb database using LDIF formatted input
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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ldbdel(1)
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\- delete records from a ldb database
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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ldbmodify(1)
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\- modify records in a ldb database using LDIF formatted input
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.RE
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.SH "FUNCTIONS"
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_connect(3)\fR
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\- connect to a ldb backend
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_search(3)\fR
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\- perform a database search
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_add(3)\fR
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\- add a record to the database
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_delete(3)\fR
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\- delete a record from the database
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_modify(3)\fR
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\- modify a record in the database
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_errstring(3)\fR
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\- retrieve extended error information from the last operation
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_write(3)\fR
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\- write a LDIF formatted message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_write_file(3)\fR
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\- write a LDIF formatted message to a file
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_read(3)\fR
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\- read a LDIF formatted message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_read_free(3)\fR
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\- free the result of a ldb_ldif_read()
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_read_file(3)\fR
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\- read a LDIF message from a file
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_ldif_read_string(3)\fR
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\- read a LDIF message from a string
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_element(3)\fR
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\- find an element in a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_val_equal_exact(3)\fR
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\- compare two ldb_val structures
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_val(3)\fR
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\- find an element by value
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_add_empty(3)\fR
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\- add an empty message element to a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_add(3)\fR
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\- add a non\-empty message element to a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_element_compare(3)\fR
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\- compare two ldb_message_element structures
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_int(3)\fR
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\- return an integer value from a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_uint(3)\fR
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\- return an unsigned integer value from a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_double(3)\fR
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\- return a double value from a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_msg_find_string(3)\fR
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\- return a string value from a ldb_message
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_set_alloc(3)\fR
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\- set the memory allocation function to be used by ldb
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_set_debug(3)\fR
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\- set a debug handler to be used by ldb
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBldb_set_debug_stderr(3)\fR
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\- set a debug handler for stderr output
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.RE
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.SH "AUTHOR"
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.PP
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ldb was written by
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\m[blue]\fBAndrew Tridgell\fR\m[]\&\s-2\u[1]\d\s+2\&.
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.PP
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If you wish to report a problem or make a suggestion then please see the
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\m[blue]\fB\%http://ldb.samba.org/\fR\m[]
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web site for current contact and maintainer information\&.
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.PP
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ldb is released under the GNU Lesser General Public License version 2 or later\&. Please see the file COPYING for license details\&.
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.SH "NOTES"
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.IP " 1." 4
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Andrew Tridgell
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.RS 4
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\%https://www.samba.org/~tridge/
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.RE
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