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https://github.com/postgres/postgres.git
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6dc249610a
user is now defined in terms of the user id, the user name is only computed upon request (for display purposes). This is kind of the opposite of the previous state, which would maintain the user name and compute the user id for permission checks. Besides perhaps saving a few cycles (integer vs string), this now creates a single point of attack for changing the user id during a connection, for purposes of "setuid" functions, etc.
229 lines
6.7 KiB
C
229 lines
6.7 KiB
C
/*-------------------------------------------------------------------------
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*
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* miscadmin.h
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* this file contains general postgres administration and initialization
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* stuff that used to be spread out between the following files:
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* globals.h global variables
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* pdir.h directory path crud
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* pinit.h postgres initialization
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* pmod.h processing modes
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*
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: miscadmin.h,v 1.65 2000/09/06 14:15:24 petere Exp $
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*
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* NOTES
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* some of the information in this file will be moved to
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* other files.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef MISCADMIN_H
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#define MISCADMIN_H
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#include <sys/types.h> /* For pid_t */
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#include "postgres.h"
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#include "storage/ipc.h"
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/*****************************************************************************
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* globals.h -- *
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*****************************************************************************/
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/*
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* from postmaster/postmaster.c
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*/
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extern int PostmasterMain(int argc, char *argv[]);
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/*
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* from utils/init/globals.c
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*/
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extern bool Noversion;
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extern bool Quiet;
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extern bool QueryCancel;
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extern char *DataDir;
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extern int MyProcPid;
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extern struct Port *MyProcPort;
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extern long MyCancelKey;
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extern char OutputFileName[];
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/*
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* done in storage/backendid.h for now.
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*
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* extern BackendId MyBackendId;
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* extern BackendTag MyBackendTag;
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*/
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extern bool MyDatabaseIdIsInitialized;
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extern Oid MyDatabaseId;
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extern bool TransactionInitWasProcessed;
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extern bool IsUnderPostmaster;
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extern int DebugLvl;
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/* Date/Time Configuration
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*
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* Constants to pass info from runtime environment:
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* USE_POSTGRES_DATES specifies traditional postgres format for output.
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* USE_ISO_DATES specifies ISO-compliant format for output.
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* USE_SQL_DATES specified Oracle/Ingres-compliant format for output.
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* USE_GERMAN_DATES specifies German-style dd.mm/yyyy date format.
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*
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* DateStyle specifies preference for date formatting for output.
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* EuroDates if client prefers dates interpreted and written w/European conventions.
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*
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* HasCTZSet if client timezone is specified by client.
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* CDayLight is the apparent daylight savings time status.
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* CTimeZone is the timezone offset in seconds.
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* CTZName is the timezone label.
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*/
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#define MAXTZLEN 10 /* max TZ name len, not counting tr. null */
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#define USE_POSTGRES_DATES 0
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#define USE_ISO_DATES 1
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#define USE_SQL_DATES 2
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#define USE_GERMAN_DATES 3
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extern int DateStyle;
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extern bool EuroDates;
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extern bool HasCTZSet;
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extern bool CDayLight;
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extern int CTimeZone;
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extern char CTZName[];
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extern char FloatFormat[];
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extern char DateFormat[];
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extern bool enableFsync;
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extern bool allowSystemTableMods;
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extern int SortMem;
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/* a few postmaster startup options are exported here so the
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configuration file processor has access to them */
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extern bool NetServer;
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extern int MaxBackends;
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extern int NBuffers;
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extern int PostPortName;
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/*****************************************************************************
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* pdir.h -- *
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* POSTGRES directory path definitions. *
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*****************************************************************************/
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extern char *DatabaseName;
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extern char *DatabasePath;
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/* in utils/misc/database.c */
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extern void GetRawDatabaseInfo(const char *name, Oid *db_id, char *path);
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extern char *ExpandDatabasePath(const char *path);
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/* now in utils/init/miscinit.c */
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extern void SetDatabaseName(const char *name);
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extern void SetDatabasePath(const char *path);
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extern char *GetPgUserName(void);
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extern Oid GetUserId(void);
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extern void SetUserId(Oid userid);
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extern void SetUserIdFromUserName(const char *username);
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extern int FindExec(char *full_path, const char *argv0, const char *binary_name);
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extern int CheckPathAccess(char *path, char *name, int open_mode);
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/*****************************************************************************
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* pmod.h -- *
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* POSTGRES processing mode definitions. *
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*****************************************************************************/
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/*
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* Description:
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* There are three processing modes in POSTGRES. They are
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* "BootstrapProcessing or "bootstrap," InitProcessing or
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* "initialization," and NormalProcessing or "normal."
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*
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* The first two processing modes are used during special times. When the
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* system state indicates bootstrap processing, transactions are all given
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* transaction id "one" and are consequently guarenteed to commit. This mode
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* is used during the initial generation of template databases.
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*
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* Initialization mode until all normal initialization is complete.
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* Some code behaves differently when executed in this mode to enable
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* system bootstrapping.
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*
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* If a POSTGRES binary is in normal mode, then all code may be executed
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* normally.
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*/
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typedef enum ProcessingMode
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{
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BootstrapProcessing, /* bootstrap creation of template database */
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InitProcessing, /* initializing system */
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NormalProcessing /* normal processing */
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} ProcessingMode;
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/*****************************************************************************
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* pinit.h -- *
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* POSTGRES initialization and cleanup definitions. *
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*****************************************************************************/
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/*
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* Note:
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* XXX AddExitHandler not defined yet.
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*/
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typedef int16 ExitStatus;
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#define NormalExitStatus (0)
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#define FatalExitStatus (127)
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/* XXX are there any other meaningful exit codes? */
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/* in utils/init/postinit.c */
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extern int lockingOff;
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extern void InitPostgres(const char *dbname, const char *username);
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extern void BaseInit(void);
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/* one of the ways to get out of here */
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#define ExitPostgres(status) proc_exec(status)
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/* processing mode support stuff */
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extern ProcessingMode Mode;
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#define IsBootstrapProcessingMode() ((bool)(Mode == BootstrapProcessing))
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#define IsInitProcessingMode() ((bool)(Mode == InitProcessing))
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#define IsNormalProcessingMode() ((bool)(Mode == NormalProcessing))
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#define SetProcessingMode(mode) \
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do { \
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AssertArg(mode == BootstrapProcessing || mode == InitProcessing || \
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mode == NormalProcessing); \
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Mode = mode; \
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} while(0)
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#define GetProcessingMode() Mode
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extern void IgnoreSystemIndexes(bool mode);
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extern bool IsIgnoringSystemIndexes(void);
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extern bool IsCacheInitialized(void);
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extern void SetWaitingForLock(bool);
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/*
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* "postmaster.pid" is a file containing postmaster's pid, being
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* created uder $PGDATA upon postmaster's starting up. When postmaster
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* shuts down, it will be unlinked.
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*/
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#define PIDFNAME "postmaster.pid"
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extern void SetPidFname(char *datadir);
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extern void UnlinkPidFile(void);
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extern int SetPidFile(pid_t pid);
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extern void ValidatePgVersion(const char *path);
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#endif /* MISCADMIN_H */
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