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.TH LDAP_ERROR 3 &quot;2021/06/03&quot; &quot;OpenLDAP 2.4.59&quot;
.\&quot; $OpenLDAP$
.\&quot; Copyright 1998-2021 The OpenLDAP Foundation All Rights Reserved.
.\&quot; Copying restrictions apply.  See COPYRIGHT/LICENSE.
.SH NAME
ldap_perror, ld_errno, ldap_result2error, ldap_errlist, ldap_err2string \- LDAP protocol error handling routines
.SH LIBRARY
OpenLDAP LDAP (libldap, \-lldap)
.SH SYNOPSIS
.nf
.ft B
#include &lt;ldap.h&gt;
.LP
.ft B
char *ldap_err2string( int \fIerr\fB );
.SH DESCRIPTION
The
.B ldap_err2string()
routine provides short description of the various codes returned by
routines in this library.  The returned string is a pointer to a
static area that should not be modified.

These codes are either negative,
indicating an API error code; positive, indicating an LDAP resultCode
other than \'success' (0), or - zero, indicating both successful use
of the API and the LDAP resultCode \'success' (0).

The code associated with an LDAP session is accessible using
.BR ldap_get_option (3)
and
.BR ldap_set_option (3)
with the
.B LDAP_OPT_RESULT_CODE
option (previously called
.BR LDAP_OPT_ERROR_NUMBER ).

.SH PROTOCOL RESULT CODES

This section provides a partial list of protocol codes recognized
by the library.  As LDAP is extensible, additional values may be
returned.  A complete listing of \fIregistered\fP LDAP result codes
can be obtained from the \fIInternet Assigned Numbers Authority\fP
&lt;http://www.iana.org&gt;.

.LP
.TP 20
.SM LDAP_SUCCESS
The request was successful.
.TP
.SM LDAP_OPERATIONS_ERROR
An operations error occurred.
.TP
.SM LDAP_PROTOCOL_ERROR
A protocol violation was detected.
.TP
.SM LDAP_TIMELIMIT_EXCEEDED
An LDAP time limit was exceeded.
.TP
.SM LDAP_SIZELIMIT_EXCEEDED
An LDAP size limit was exceeded.
.TP
.SM LDAP_COMPARE_FALSE
A compare operation returned false.
.TP
.SM LDAP_COMPARE_TRUE
A compare operation returned true.
.TP
.SM LDAP_STRONG_AUTH_NOT_SUPPORTED
The LDAP server does not support strong authentication.
.TP
.SM LDAP_STRONG_AUTH_REQUIRED
Strong authentication is required for the operation.
.TP
.SM LDAP_PARTIAL_RESULTS
Partial results only returned.
.TP
.SM LDAP_NO_SUCH_ATTRIBUTE
The attribute type specified does not exist in the entry.
.TP
.SM LDAP_UNDEFINED_TYPE
The attribute type specified is invalid.
.TP
.SM LDAP_INAPPROPRIATE_MATCHING
Filter type not supported for the specified attribute.
.TP
.SM LDAP_CONSTRAINT_VIOLATION
An attribute value specified violates some constraint (e.g., a postalAddress
has too many lines, or a line that is too long).
.TP
.SM LDAP_TYPE_OR_VALUE_EXISTS
An attribute type or attribute value specified already exists in the entry.
.TP
.SM LDAP_INVALID_SYNTAX
An invalid attribute value was specified.
.TP
.SM LDAP_NO_SUCH_OBJECT
The specified object does not exist in The Directory.
.TP
.SM LDAP_ALIAS_PROBLEM
An alias in The Directory points to a nonexistent entry.
.TP
.SM LDAP_INVALID_DN_SYNTAX
A syntactically invalid DN was specified.
.TP
.SM LDAP_IS_LEAF
The object specified is a leaf.
.TP
.SM LDAP_ALIAS_DEREF_PROBLEM
A problem was encountered when dereferencing an alias.
.TP
.SM LDAP_INAPPROPRIATE_AUTH
Inappropriate authentication was specified (e.g., LDAP_AUTH_SIMPLE was
specified and the entry does not have a userPassword attribute).
.TP
.SM LDAP_INVALID_CREDENTIALS
Invalid credentials were presented (e.g., the wrong password).
.TP
.SM LDAP_INSUFFICIENT_ACCESS
The user has insufficient access to perform the operation.
.TP
.SM LDAP_BUSY
The DSA is busy.
.TP
.SM LDAP_UNAVAILABLE
The DSA is unavailable.
.TP
.SM LDAP_UNWILLING_TO_PERFORM
The DSA is unwilling to perform the operation.
.TP
.SM LDAP_LOOP_DETECT
A loop was detected.
.TP
.SM LDAP_NAMING_VIOLATION
A naming violation occurred.
.TP
.SM LDAP_OBJECT_CLASS_VIOLATION
An object class violation occurred (e.g., a &quot;must&quot; attribute was missing
from the entry).
.TP
.SM LDAP_NOT_ALLOWED_ON_NONLEAF
The operation is not allowed on a nonleaf object.
.TP
.SM LDAP_NOT_ALLOWED_ON_RDN
The operation is not allowed on an RDN.
.TP
.SM LDAP_ALREADY_EXISTS
The entry already exists.
.TP
.SM LDAP_NO_OBJECT_CLASS_MODS
Object class modifications are not allowed.
.TP
.SM LDAP_OTHER
An unknown error occurred.

.SH API ERROR CODES

This section provides a complete list of API error codes recognized
by the library.   Note that LDAP_SUCCESS indicates success of an
API call in addition to representing the return of the LDAP
\'success' resultCode.


.LP
.TP 20
.SM LDAP_SERVER_DOWN
The LDAP library can't contact the LDAP server.
.TP
.SM LDAP_LOCAL_ERROR
Some local error occurred.  This is usually a failed dynamic memory allocation.
.TP
.SM LDAP_ENCODING_ERROR
An error was encountered encoding parameters to send to the LDAP server.
.TP
.SM LDAP_DECODING_ERROR
An error was encountered decoding a result from the LDAP server.
.TP
.SM LDAP_TIMEOUT
A timelimit was exceeded while waiting for a result.
.TP
.SM LDAP_AUTH_UNKNOWN
The authentication method specified to ldap_bind() is not known.
.TP
.SM LDAP_FILTER_ERROR
An invalid filter was supplied to ldap_search() (e.g., unbalanced
parentheses).
.TP
.SM LDAP_PARAM_ERROR
An ldap routine was called with a bad parameter.
.TP
.SM LDAP_NO_MEMORY
An memory allocation (e.g., malloc(3) or other dynamic memory
allocator) call failed in an ldap library routine.
.TP
.SM LDAP_USER_CANCELED
Indicates the user cancelled the operation.
.TP
.SM LDAP_CONNECT_ERROR
Indicates a connection problem.
.TP
.SM LDAP_NOT_SUPPORTED
Indicates the routine was called in a manner not supported by the library.
.TP
.SM LDAP_CONTROL_NOT_FOUND
Indicates the control provided is unknown to the client library.
.TP
.SM LDAP_NO_RESULTS_RETURNED
Indicates no results returned.
.TP
.SM LDAP_MORE_RESULTS_TO_RETURN
Indicates more results could be returned.
.TP
.SM LDAP_CLIENT_LOOP
Indicates the library has detected a loop in its processing.
.TP
.SM LDAP_REFERRAL_LIMIT_EXCEEDED
Indicates the referral limit has been exceeded.

.SH DEPRECATED
.lf 1 ./Deprecated
Deprecated interfaces generally remain in the library.  The macro
LDAP_DEPRECATED can be defined to a non-zero value
(e.g., -DLDAP_DEPRECATED=1) when compiling program designed to use
deprecated interfaces.  It is recommended that developers writing new
programs, or updating old programs, avoid use of deprecated interfaces.
Over time, it is expected that documentation (and, eventually, support) for
deprecated interfaces to be eliminated.
.lf 220 stdin

.SH SEE ALSO
.BR ldap (3),
.SH ACKNOWLEDGEMENTS
.lf 1 ./../Project
.\&quot; Shared Project Acknowledgement Text
.B &quot;OpenLDAP Software&quot;
is developed and maintained by The OpenLDAP Project &lt;http://www.openldap.org/&gt;.
.B &quot;OpenLDAP Software&quot;
is derived from the University of Michigan LDAP 3.3 Release.  
.lf 225 stdin
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