When most LDAP APIs fail to complete successfully, ld_errno usually indicates one of the following errors. Under some conditions, ld_errno could indicate an error other than those listed here.
| LDAP_SUCCESS | 0x00 - The request was successful. |
| LDAP_OPERATIONS_ERROR | 0x01 - An operations error occurred. |
| LDAP_PROTOCOL_ERROR | 0x02 - A protocol violation was detected. |
| LDAP_TIMELIMIT_EXCEEDED | 0x03 - An LDAP time limit was exceeded. |
| LDAP_SIZELIMIT_EXCEEDED | 0x04 - An LDAP size limit was exceeded. |
| LDAP_COMPARE_FALSE | 0x05 - A compare operation returned false. |
| LDAP_COMPARE_TRUE | 0x06 - A compare operation returned true. |
| LDAP_STRONG_AUTH_NOT_ SUPPORTED | 0x07 - The LDAP server does not support strong authentication. |
| LDAP_STRONG_AUTH_REQUIRED | 0x08 - Strong authentication is required for the operation. |
| LDAP_PARTIAL_RESULTS | 0x09 - Partial results only returned. |
| LDAP_REFERRAL | 0X0A - Referral returned. |
| LDAP_ADMIN_LIMIT_EXCEEDED | 0X0B - Administration limit exceeded. |
| LDAP_UNAVAILABLE_CRITICAL_ EXTENSION | 0X0C - Critical extension not supported. |
| LDAP_NO_SUCH_ATTRIBUTE | 0x10 - The attribute type specified does not exist in the entry. |
| LDAP_UNDEFINED_TYPE | 0x11 - The attribute type specified is not valid. |
| LDAP_INAPPROPRIATE_MATCHING | 0x12 - Filter type not supported for the specified attribute. |
| LDAP_CONSTRAINT_VIOLATION | 0x13 - An attribute value specified violates some constraint (for example, a postal address has too many lines, or a line that is too long). |
| LDAP_TYPE_OR_VALUE_EXISTS | 0x14 - An attribute type or attribute value specified already exists in the entry. |
| LDAP_INVALID_SYNTAX | 0x15 - An attribute value was specified that is not valid. |
| LDAP_NO_SUCH_OBJECT | 0x20 - The specified object does not exist in the directory. |
| LDAP_ALIAS_PROBLEM | 0x21 - An alias in the directory points to a nonexistent entry. |
| LDAP_INVALID_DN_SYNTAX | 0x22 - A distinguished name was specified that is syntactically not valid. |
| LDAP_IS_LEAF | 0x23 - The object specified is a leaf. |
| LDAP_ALIAS_DEREF_PROBLEM | 0x24 - A problem was encountered when dereferencing an alias. |
| LDAP_INAPPROPRIATE_AUTH | 0x30 - Inappropriate authentication was specified (for example, LDAP_AUTH_SIMPLE was specified and the entry does not have a user password attribute). |
| LDAP_INVALID_CREDENTIALS | 0x31 - Credentials that are not valid were presented (for example, the wrong password). |
| LDAP_INSUFFICIENT_ACCESS | 0x32 - The user has insufficient access to perform the operation. |
| LDAP_BUSY | 0x33 - The directory system agent is busy. |
| LDAP_UNAVAILABLE | 0x34 - The directory system agent is unavailable. |
| LDAP_UNWILLING_TO_PERFORM | 0x35 - The directory system agent is unwilling to perform the operation. |
| LDAP_LOOP_DETECT | 0x36 - A loop was detected. |
| LDAP_NAMING_VIOLATION | 0x40 - A naming violation occurred. |
| LDAP_OBJECT_CLASS_VIOLATION | 0x41 - An object class violation occurred (for example, a must attribute was missing from the entry). |
| LDAP_NOT_ALLOWED_ON_NONLEAF | 0x42 - The operation is not allowed on a nonleaf object. |
| LDAP_NOT_ALLOWED_ON_RDN | 0x43 - The operation is not allowed on a relative distinguished name. |
| LDAP_ALREADY_EXISTS | 0x44 - The entry already exists. |
| LDAP_NO_OBJECT_CLASS_MODS | 0x45 - Object class modifications are not allowed. |
| LDAP_RESULTS_TOO_LARGE | 0x46 - Results too large. |
| LDAP_AFFECTS_MULTIPLE_DSAS | 0X47 - Affects multiple DSAS. |
| LDAP_OTHER | 0x50 - An unknown error occurred. |
| LDAP_SERVER_DOWN | 0x51 - The LDAP API cannot contact the LDAP server. |
| LDAP_LOCAL_ERROR | 0x52 - Some local error occurred. This usually indicates that either the LDAP support (IBM® i option 32) is not installed on the system, or a malloc() operation has failed |
| LDAP_ENCODING_ERROR | 0x53 - An error was encountered while the API was encoding parameters to send to the LDAP server. |
| LDAP_DECODING_ERROR | 0x54 - An error was encountered while the API was decoding a result from the LDAP server. |
| LDAP_TIMEOUT | 0x55 - A time limit was exceeded while API was waiting for a result. |
| LDAP_AUTH_UNKNOWN | 0x56 - The authentication method specified to ldap_bind() is not known. |
| LDAP_FILTER_ERROR | 0x57 - A filter that is not valid was supplied to ldap_search() (for example, unbalanced parentheses). |
| LDAP_USER_CANCELLED | 0x58 - User cancelled |
| LDAP_PARAM_ERROR | 0x59 - An LDAP API was called with a bad parameter (for example, a NULL ld pointer). |
| LDAP_NO_MEMORY | 0x5A - A memory allocation (for example, a malloc() call) failed in an LDAP API. |
| LDAP_CONNECT_ERROR | 0x5b - Connection error |
| LDAP_NOT_SUPPORTED | 0x5c - Not Supported |
| LDAP_CONTROL_NOT_FOUND | 0x5d - Control not found |
| LDAP_NO_RESULTS_RETURNED | 0x5e - No results returned |
| LDAP_MORE_RESULTS_TO_RETURN | 0x5f - More result to return |
| LDAP_URL_ERR_NOTLDAP | 0x60 - URL doesn't begin with ldap:// |
| LDAP_URL_ERR_NODN | 0x61 - URL has no DN (required). |
| LDAP_URL_ERR_BADSCOPE | 0x62 - URL scope string is invalid. |
| LDAP_URL_ERR_MEM | 0x63 - can't allocate memory space. |
| LDAP_CLIENT_LOOP | 0x64 - Client loop |
| LDAP_REFERRAL_LIMIT_EXCEEDED | 0x65 - Referral limit exceeded |
| LDAP_SSL_ALREADY_INITIALIZED | 0x70 - ldap_ssl_client_init successfully called previously in this process. |
| LDAP_SSL_INITIALIZE_FAILED | 0x71 - SSL initialization call failed. |
| LDAP_SSL_INITIALIZE_NOT_CALLED | 0x72 - Call ldap_ssl_client_init before attempting to use an ssl connection. |
| LDAP_SSL_PARAM_ERROR | 0x73 - An invalid ssl parameter was previously specified. |
| LDAP_SSL_HANDSHAKE_FAILED | 0x74 - Failed to connect to ssl server. |
| LDAP_SSL_GET_CIPHER_FAILED | 0x75 - Failed to identify the maximum SSL encryption level for this host. |
| LDAP_SSL_NOT_AVAILABLE | 0x76 - The SSL library cannot be loaded. |
| LDAP_SSL_KEYRING_NOT_FOUND | 0x77 - SSL Keyring file not found |
| LDAP_SSL_PASSWORD_NOT_ SPECIFIED | 0x78 - SSL password not specified |
| LDAP_NO_EXPLICIT_OWNER | 0x80 - No explicit owner found |
| LDAP_NO_LOCK | 0x81 - Could not obtain lock |
| LDAP_DNS_NO_SERVERS | 0x85 - No LDAP servers found |
| LDAP_DNS_TRUNCATED | 0x86 - Warning truncated DNS results |
| LDAP_DNS_INVALID_DATA | 0x87 - Invalid DNS Data |
| LDAP_DNS_RESOLVE_ERROR | 0x88 - Can't resolve system domain or nameserver |
| LDAP_DNS_CONF_FILE_ERROR | 0x89 - DNS Configuration file error |
| LDAP_XLATE_E2BIG | 0xA0 - Output buffer overflow |
| LDAP_XLATE_EINVAL | 0xA1 - Input buffer truncated |
| LDAP_XLATE_EILSEQ | 0xA2 - Unusable input character |
| LDAP_XLATE_NO_ENTRY | 0xA3 - No codeset point to map to |
| LDAP_REG_FILE_NOT_FOUND | 0xB0 - NT Registry - file not found |
| LDAP_REG_CANNOT_OPEN | 0xB1 - NT Registry - cannot open |
| LDAP_REG_ENTRY_NOT_FOUND | 0xB2 - NT Registry entry not found |
| LDAP_CONF_FILE_NOT_OPENED | 0xC0 - Plugin configuration file not opened |
| LDAP_PLUGIN_NOT_LOADED | 0xC1 - Plugin library not loaded |
| LDAP_PLUGIN_FUNCTION_NOT_ RESOLVED | 0xC2 - Plugin function not resolved |
| LDAP_PLUGIN_NOT_INITIALIZED | 0xC3 - Plugin library not initialized |
| LDAP_PLUGIN_COULD_NOT_BIND | 0xC4 - Plugin function could not bind |
| LDAP_SASL_GSS_NO_SEC_CONTEXT | 0xD0 - gss_init_sec_context failed |
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