utility/all.php

/*-------------------------------------------------------------------------

 *

 * protocol.h

 *      Definitions of the request/response codes for the wire protocol.

 *

 *

 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group

 * Portions Copyright (c) 1994, Regents of the University of California

 *

 * src/include/libpq/protocol.h

 *

 *-------------------------------------------------------------------------

 */

#ifndef PROTOCOL_H

#define PROTOCOL_H


/* These are the request codes sent by the frontend. */


#define PqMsg_Bind                  'B'

#define PqMsg_Close                 'C'

#define PqMsg_Describe              'D'

#define PqMsg_Execute               'E'

#define PqMsg_FunctionCall          'F'

#define PqMsg_Flush                 'H'

#define PqMsg_Parse                 'P'

#define PqMsg_Query                 'Q'

#define PqMsg_Sync                  'S'

#define PqMsg_Terminate             'X'

#define PqMsg_CopyFail              'f'

#define PqMsg_GSSResponse           'p'

#define PqMsg_PasswordMessage       'p'

#define PqMsg_SASLInitialResponse   'p'

#define PqMsg_SASLResponse          'p'


/* These are the response codes sent by the backend. */


#define PqMsg_ParseComplete         '1'

#define PqMsg_BindComplete          '2'

#define PqMsg_CloseComplete         '3'

#define PqMsg_NotificationResponse  'A'

#define PqMsg_CommandComplete       'C'

#define PqMsg_DataRow               'D'

#define PqMsg_ErrorResponse         'E'

#define PqMsg_CopyInResponse        'G'

#define PqMsg_CopyOutResponse       'H'

#define PqMsg_EmptyQueryResponse    'I'

#define PqMsg_BackendKeyData        'K'

#define PqMsg_NoticeResponse        'N'

#define PqMsg_AuthenticationRequest 'R'

#define PqMsg_ParameterStatus       'S'

#define PqMsg_RowDescription        'T'

#define PqMsg_FunctionCallResponse  'V'

#define PqMsg_CopyBothResponse      'W'

#define PqMsg_ReadyForQuery         'Z'

#define PqMsg_NoData                'n'

#define PqMsg_PortalSuspended       's'

#define PqMsg_ParameterDescription  't'

#define PqMsg_NegotiateProtocolVersion 'v'


/* These are the codes sent by both the frontend and backend. */


#define PqMsg_CopyDone              'c'

#define PqMsg_CopyData              'd'


/* These are the codes sent by parallel workers to leader processes. */


#define PqMsg_Progress              'P'


/* Replication codes sent by the primary (wrapped in CopyData messages). */


#define PqReplMsg_Keepalive         'k'

#define PqReplMsg_PrimaryStatusUpdate 's'

#define PqReplMsg_WALData           'w'


/* Replication codes sent by the standby (wrapped in CopyData messages). */


#define PqReplMsg_HotStandbyFeedback 'h'

#define PqReplMsg_PrimaryStatusRequest 'p'

#define PqReplMsg_StandbyStatusUpdate 'r'


/* Codes used for backups via COPY OUT (wrapped in CopyData messages). */


#define PqBackupMsg_Manifest        'm'

#define PqBackupMsg_NewArchive      'n'

#define PqBackupMsg_ProgressReport  'p'


/* These are the authentication request codes sent by the backend. */


#define AUTH_REQ_OK         0   /* User is authenticated  */

#define AUTH_REQ_KRB4       1   /* Kerberos V4. Not supported any more. */

#define AUTH_REQ_KRB5       2   /* Kerberos V5. Not supported any more. */

#define AUTH_REQ_PASSWORD   3   /* Password */

#define AUTH_REQ_CRYPT      4   /* crypt password. Not supported any more. */

#define AUTH_REQ_MD5        5   /* md5 password */

/* 6 is available.  It was used for SCM creds, not supported any more. */

#define AUTH_REQ_GSS        7   /* GSSAPI without wrap() */

#define AUTH_REQ_GSS_CONT   8   /* Continue GSS exchanges */

#define AUTH_REQ_SSPI       9   /* SSPI negotiate without wrap() */

#define AUTH_REQ_SASL      10   /* Begin SASL authentication */

#define AUTH_REQ_SASL_CONT 11   /* Continue SASL authentication */

#define AUTH_REQ_SASL_FIN  12   /* Final SASL message */

#define AUTH_REQ_MAX       AUTH_REQ_SASL_FIN    /* maximum AUTH_REQ_* value */


#endif                          /* PROTOCOL_H */