LDAP_SUCCESS = 0 //成功
LDAP_OPERATIONS_ERROR = 1 //操作错误
LDAP_PROTOCOL_ERROR = 2 //协议错误
LDAP_TIME_LIMIT_EXCEEDED = 3 //超过最大时间限制
LDAP_SIZE_LIMIT_EXCEEDED = 4 //超过最大返回条目数
LDAP_COMPARE_FALSE = 5 //比较不匹配
LDAP_COMPARE_TRUE = 6 //比较匹配
LDAP_AUTH_METHOD_NOT_SUPPORTED = 7 //认证方法未被支持
LDAP_STRONG_AUTH_REQUIRED = 8 //需要强认证
LDAP_PARTIAL_RESULTS = 9 //null
LDAP_REFERRAL = 10 //Referral
LDAP_ADMIN_LIMIT_EXCEEDED = 11 //超出管理员权限
LDAP_UNAVAILABLE_CRITICAL_EXTENSION = 12 //Critical扩展无效
LDAP_CONFIDENTIALITY_REQUIRED = 13 //需要Confidentiality
LDAP_SASL_BIND_IN_PROGRESS = 14 //需要SASL绑定
LDAP_NO_SUCH_ATTRIBUTE = 16 //未找到该属性
LDAP_UNDEFINED_ATTRIBUTE_TYPE = 17 //未定义的属性类型
LDAP_INAPPROPRIATE_MATCHING = 18 //不适当的匹配
LDAP_CONSTRAINT_VIOLATION = 19 //约束冲突
LDAP_ATTRIBUTE_OR_value_EXISTS = 20 //属性或值已存在
LDAP_INVALID_ATTRIBUTE_SYNTAX = 21 //无效的属性语法
LDAP_NO_SUCH_OBJECT = 32 //未找到该对象
LDAP_ALIAS_PROBLEM = 33 //别名有问题
LDAP_INVALID_DN_SYNTAX = 34 //无效的DN语法
LDAP_IS_LEAF = 35 //null
LDAP_ALIAS_DEREFERENCING_PROBLEM = 36 //Dereference别名有问题
LDAP_INAPPROPRIATE_AUTHENTICATION = 48 //不适当的认证
LDAP_INVALID_CREDENTIALS = 49 //无效的Credential
LDAP_INSUFFICIENT_ACCESS_RIGHTS = 50 //访问权限不够
LDAP_BUSY = 51 //遇忙
LDAP_UNAVAILABLE = 52 //无效
LDAP_UNWILLING_TO_PERform = 53 //意外问题
LDAP_LOOP_DETECT = 54 //发现死循环
LDAP_NAMING_VIOLATION = 64 //命名冲突
LDAP_OBJECT_CLASS_VIOLATION = 65 //对象类冲突
LDAP_NOT_ALLOWED_ON_NON_LEAF = 66 //不允许在非叶结点执行此操作
LDAP_NOT_ALLOWED_ON_RDN = 67 //不允许对RDN执行此操作
LDAP_ENTRY_ALREADY_EXISTS = 68 //Entry已存在
LDAP_OBJECT_CLASS_MODS_PROHIBITED = 69 //禁止更改对象类
LDAP_AFFECTS_MULTIPLE_DSAS = 71 //null
LDAP_OTHER = 80 //其它
https://www.cnblogs.com/cbf4life/archive/2009/12/11/1621848.html