LDAP error codes

Code (decimal)	Error code (string)	Description
0	LDAP_SUCCESS	Success
1	LDAP_OPERATIONS_ERROR	Operations error
2	LDAP_PROTOCOL_ERROR	Protocol error
3	LDAP_TIMELIMIT_EXCEEDED	Timelimit exceeded
4	LDAP_SIZELIMIT_EXCEEDED	Sizelimit exceeded
5	LDAP_COMPARE_FALSE	Compare false
6	LDAP_COMPARE_TRUE	Compare true
7	LDAP_STRONG_AUTH_NOT_SUPPORTED	Strong authentication not supported
8	LDAP_STRONG_AUTH_REQUIRED	Strong authentication required
9	LDAP_PARTIAL_RESULTS	Partial results
16	LDAP_NO_SUCH_ATTRIBUTE	No such attribute
17	LDAP_UNDEFINED_TYPE	Undefined attribute type
18	LDAP_INAPPROPRIATE_MATCHING	Inappropriate matching
19	LDAP_CONSTRAINT_VIOLATION	Constraint violation
20	LDAP_TYPE_OR_VALUE_EXISTS	Type or value exists
21	LDAP_INVALID_SYNTAX	Invalid syntax
32	LDAP_NO_SUCH_OBJECT	No such object
33	LDAP_ALIAS_PROBLEM	Alias problem
34	LDAP_INVALID_DN_SYNTAX	Invalid DN syntax
35	LDAP_IS_LEAF	Object is a leaf
36	LDAP_ALIAS_DEREF_PROBLEM	Alias dereferencing problem
48	LDAP_INAPPROPRIATE_AUTH	Inappropriate authentication
49	LDAP_INVALID_CREDENTIALS	Invalid credentials
50	LDAP_INSUFFICIENT_ACCESS	Insufficient access
51	LDAP_BUSY	DSA is busy
52	LDAP_UNAVAILABLE	DSA is unavailable
53	LDAP_UNWILLING_TO_PERFORM	DSA is unwilling to perform
54	LDAP_LOOP_DETECT	Loop detected
64	LDAP_NAMING_VIOLATION	Naming violation
65	LDAP_OBJECT_CLASS_VIOLATION	Object class violation
66	LDAP_NOT_ALLOWED_ON_NONLEAF	Operation not allowed on nonleaf
67	LDAP_NOT_ALLOWED_ON_RDN	Operation not allowed on RDN
68	LDAP_ALREADY_EXISTS	Already exists
69	LDAP_NO_OBJECT_CLASS_MODS	Cannot modify object class
70	LDAP_RESULTS_TOO_LARGE	Results too large
80	LDAP_OTHER	Unknown error
81	LDAP_SERVER_DOWN	Can't contact LDAP server
82	LDAP_LOCAL_ERROR	Local error
83	LDAP_ENCODING_ERROR	Encoding error
84	LDAP_DECODING_ERROR	Decoding error
85	LDAP_TIMEOUT	Timed out
86	LDAP_AUTH_UNKNOWN	Unknown authentication method
87	LDAP_FILTER_ERROR	Bad search filter
88	LDAP_USER_CANCELLED	User cancelled operation
89	LDAP_PARAM_ERROR	Bad parameter to an ldap routine
90	LDAP_NO_MEMORY	Out of memory