本文共 2055 字，大约阅读时间需要 6 分钟。
| 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 |
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