mirror of https://github.com/postgres/postgres
This commit introduces descriptively-named macros for the identifiers used in wire protocol messages. These new macros are placed in a new header file so that they can be easily used by third-party code. Author: Dave Cramer Reviewed-by: Alvaro Herrera, Tatsuo Ishii, Peter Smith, Robert Haas, Tom Lane, Peter Eisentraut, Michael Paquier Discussion: https://postgr.es/m/CADK3HHKbBmK-PKf1bPNFoMC%2BoBt%2BpD9PH8h5nvmBQskEHm-Ehw%40mail.gmail.compull/140/head
Nathan Bossart
2 years ago
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/*-------------------------------------------------------------------------
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* |
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* protocol.h |
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* Definitions of the request/response codes for the wire protocol. |
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* |
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* |
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group |
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* Portions Copyright (c) 1994, Regents of the University of California |
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* |
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* src/include/libpq/protocol.h |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#ifndef PROTOCOL_H |
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#define PROTOCOL_H |
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/* These are the request codes sent by the frontend. */ |
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#define PqMsg_Bind 'B' |
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#define PqMsg_Close 'C' |
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#define PqMsg_Describe 'D' |
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#define PqMsg_Execute 'E' |
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#define PqMsg_FunctionCall 'F' |
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#define PqMsg_Flush 'H' |
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#define PqMsg_Parse 'P' |
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#define PqMsg_Query 'Q' |
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#define PqMsg_Sync 'S' |
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#define PqMsg_Terminate 'X' |
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#define PqMsg_CopyFail 'f' |
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#define PqMsg_GSSResponse 'p' |
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#define PqMsg_PasswordMessage 'p' |
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#define PqMsg_SASLInitialResponse 'p' |
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#define PqMsg_SASLResponse 'p' |
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/* These are the response codes sent by the backend. */ |
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#define PqMsg_ParseComplete '1' |
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#define PqMsg_BindComplete '2' |
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#define PqMsg_CloseComplete '3' |
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#define PqMsg_NotificationResponse 'A' |
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#define PqMsg_CommandComplete 'C' |
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#define PqMsg_DataRow 'D' |
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#define PqMsg_ErrorResponse 'E' |
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#define PqMsg_CopyInResponse 'G' |
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#define PqMsg_CopyOutResponse 'H' |
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#define PqMsg_EmptyQueryResponse 'I' |
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#define PqMsg_BackendKeyData 'K' |
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#define PqMsg_NoticeResponse 'N' |
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#define PqMsg_AuthenticationRequest 'R' |
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#define PqMsg_ParameterStatus 'S' |
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#define PqMsg_RowDescription 'T' |
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#define PqMsg_FunctionCallResponse 'V' |
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#define PqMsg_CopyBothResponse 'W' |
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#define PqMsg_ReadyForQuery 'Z' |
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#define PqMsg_NoData 'n' |
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#define PqMsg_PortalSuspended 's' |
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#define PqMsg_ParameterDescription 't' |
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#define PqMsg_NegotiateProtocolVersion 'v' |
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/* These are the codes sent by both the frontend and backend. */ |
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#define PqMsg_CopyDone 'c' |
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#define PqMsg_CopyData 'd' |
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/* These are the authentication request codes sent by the backend. */ |
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#define AUTH_REQ_OK 0 /* User is authenticated */ |
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#define AUTH_REQ_KRB4 1 /* Kerberos V4. Not supported any more. */ |
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#define AUTH_REQ_KRB5 2 /* Kerberos V5. Not supported any more. */ |
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#define AUTH_REQ_PASSWORD 3 /* Password */ |
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#define AUTH_REQ_CRYPT 4 /* crypt password. Not supported any more. */ |
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#define AUTH_REQ_MD5 5 /* md5 password */ |
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/* 6 is available. It was used for SCM creds, not supported any more. */ |
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#define AUTH_REQ_GSS 7 /* GSSAPI without wrap() */ |
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#define AUTH_REQ_GSS_CONT 8 /* Continue GSS exchanges */ |
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#define AUTH_REQ_SSPI 9 /* SSPI negotiate without wrap() */ |
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#define AUTH_REQ_SASL 10 /* Begin SASL authentication */ |
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#define AUTH_REQ_SASL_CONT 11 /* Continue SASL authentication */ |
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#define AUTH_REQ_SASL_FIN 12 /* Final SASL message */ |
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#define AUTH_REQ_MAX AUTH_REQ_SASL_FIN /* maximum AUTH_REQ_* value */ |
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#endif /* PROTOCOL_H */ |
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