Fixed everything in and surrounding createdb and dropdb to make it more
error-proof. Rearranged some old code and removed dead sections.
This commit is contained in:
parent
bfa3b59d25
commit
46a28f1b14
@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/catalog/aclchk.c,v 1.32 1999/11/24 16:52:31 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/catalog/aclchk.c,v 1.33 2000/01/13 18:26:04 petere Exp $
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*
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* NOTES
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* See acl.h.
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@ -358,23 +358,6 @@ pg_aclcheck(char *relname, char *usename, AclMode mode)
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usename);
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id = (AclId) ((Form_pg_shadow) GETSTRUCT(tuple))->usesysid;
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/*
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* for the 'pg_database' relation, check the usecreatedb field before
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* checking normal permissions
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*/
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if (strcmp(DatabaseRelationName, relname) == 0 &&
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(((Form_pg_shadow) GETSTRUCT(tuple))->usecreatedb))
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{
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/*
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* note that even though the user can now append to the
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* pg_database table, there is still additional permissions
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* checking in dbcommands.c
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*/
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if ((mode & ACL_WR) || (mode & ACL_AP))
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return ACLCHECK_OK;
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}
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/*
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* Deny anyone permission to update a system catalog unless
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* pg_shadow.usecatupd is set. (This is to let superusers protect
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@ -7,102 +7,155 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.48 1999/12/20 01:11:37 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.49 2000/01/13 18:26:05 petere Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include <signal.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "postgres.h"
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#include "commands/dbcommands.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "access/heapam.h"
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#include "access/htup.h"
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#include "access/skey.h"
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#include "access/xact.h"
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#include "catalog/catname.h"
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#include "catalog/indexing.h"
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#include "catalog/pg_database.h"
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#include "catalog/pg_shadow.h"
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#include "commands/comment.h"
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#include "commands/dbcommands.h"
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#include "miscadmin.h"
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#include "storage/sinval.h"
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#include "tcop/tcopprot.h"
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#include "storage/bufmgr.h" /* for DropBuffers */
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#include "storage/fd.h" /* for closeAllVfds */
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#include "storage/sinval.h" /* for DatabaseHasActiveBackends */
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#include "utils/builtins.h"
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#include "utils/elog.h"
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#include "utils/palloc.h"
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#include "utils/rel.h"
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#include "utils/syscache.h"
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/* non-export function prototypes */
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static void check_permissions(char *command, char *dbpath, char *dbname,
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Oid *dbIdP, int4 *userIdP);
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static HeapTuple get_pg_dbtup(char *command, char *dbname, Relation dbrel);
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static void stop_vacuum(char *dbpath, char *dbname);
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static bool
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get_user_info(const char *name, int4 *use_sysid, bool *use_super, bool *use_createdb);
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static bool
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get_db_info(const char *name, char *dbpath, Oid *dbIdP, int4 *ownerIdP);
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/*
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* CREATE DATABASE
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*/
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void
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createdb(char *dbname, char *dbpath, int encoding, CommandDest dest)
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createdb(const char *dbname, const char *dbpath, int encoding)
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{
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Oid db_id;
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char buf[2 * MAXPGPATH + 100];
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char *loc;
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int4 user_id;
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char buf[MAXPGPATH + 100];
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char *lp,
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loc[MAXPGPATH];
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bool use_super, use_createdb;
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/* no single quotes in dbname */
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if (strchr(dbname, '\'') != NULL)
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elog(ERROR, "Single quotes are not allowed in database names.");
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if (dbpath && strchr(dbpath, '\'') != NULL)
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elog(ERROR, "Single quotes are not allowed in database paths.");
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Relation pg_database_rel;
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HeapTuple tuple;
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TupleDesc pg_database_dsc;
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/*
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* If this call returns, the database does not exist and we're allowed
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* to create databases.
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*/
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check_permissions("createdb", dbpath, dbname, &db_id, &user_id);
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Datum new_record[Natts_pg_database];
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char new_record_nulls[Natts_pg_database] = { ' ', ' ', ' ', ' ' };
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/* close virtual file descriptors so we can do system() calls */
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if (!get_user_info(GetPgUserName(), &user_id, &use_super, &use_createdb))
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elog(ERROR, "Current user name is invalid.");
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if (!use_createdb && !use_super)
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elog(ERROR, "CREATE DATABASE: Permission denied.");
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if (get_db_info(dbname, NULL, NULL, NULL))
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elog(ERROR, "CREATE DATABASE: Database \"%s\" already exists.", dbname);
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/* close virtual file descriptors so the kernel has more available for
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the system() calls */
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closeAllVfds();
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/* Make directory name for this new database */
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if ((dbpath != NULL) && (strcmp(dbpath, dbname) != 0))
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{
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if (*(dbpath + strlen(dbpath) - 1) == SEP_CHAR)
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*(dbpath + strlen(dbpath) - 1) = '\0';
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snprintf(loc, sizeof(loc), "%s%c%s", dbpath, SEP_CHAR, dbname);
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}
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else
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strcpy(loc, dbname);
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/* Generate directory name for the new database */
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if (dbpath == NULL)
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dbpath = dbname;
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lp = ExpandDatabasePath(loc);
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loc = ExpandDatabasePath(dbpath);
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if (lp == NULL)
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elog(ERROR, "The path '%s' is invalid.\n"
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"This may be due to a missing environment variable"
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" on the server.", loc);
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/* no single quotes in expanded path */
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if (strchr(lp, '\'') != NULL)
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elog(ERROR, "Single quotes are not allowed in database paths.");
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if (loc == NULL)
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elog(ERROR,
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"The database path '%s' is invalid. "
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"This may be due to a character that is not allowed or because the chosen "
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"path isn't permitted for databases.", dbpath);
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/* don't call this in a transaction block */
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if (IsTransactionBlock())
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elog(ERROR, "createdb: May not be called in a transaction block.");
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elog(ERROR, "CREATE DATABASE: May not be called in a transaction block.");
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else
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BeginTransactionBlock();
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snprintf(buf, sizeof(buf),
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"INSERT INTO pg_database (datname, datdba, encoding, datpath)"
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" VALUES ('%s', '%d', '%d', '%s')", dbname, user_id, encoding, loc);
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/*
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* Insert a new tuple into pg_database
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*/
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pg_database_rel = heap_openr(DatabaseRelationName, AccessExclusiveLock);
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pg_database_dsc = RelationGetDescr(pg_database_rel);
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pg_exec_query_dest(buf, dest, false);
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/* Form tuple */
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new_record[Anum_pg_database_datname-1] = NameGetDatum(dbname);
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new_record[Anum_pg_database_datdba-1] = Int32GetDatum(user_id);
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new_record[Anum_pg_database_encoding-1] = Int32GetDatum(encoding);
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new_record[Anum_pg_database_datpath-1] = PointerGetDatum(textin((char *)dbpath));
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if (mkdir(lp, S_IRWXU) != 0) {
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tuple = heap_formtuple(pg_database_dsc, new_record, new_record_nulls);
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/*
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* Update table
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*/
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heap_insert(pg_database_rel, tuple);
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/*
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* Update indexes (there aren't any currently)
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*/
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#ifdef Num_pg_database_indices
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if (RelationGetForm(pg_database_rel)->relhasindex) {
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Relation idescs[Num_pg_database_indices];
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CatalogOpenIndices(Num_pg_database_indices,
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Name_pg_database_indices, idescs);
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CatalogIndexInsert(idescs, Num_pg_database_indices, pg_database_rel,
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tuple);
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CatalogCloseIndices(Num_pg_database_indices, idescs);
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}
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#endif
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heap_close(pg_database_rel, NoLock);
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/* Copy the template database to the new location */
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if (mkdir(loc, S_IRWXU) != 0) {
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UserAbortTransactionBlock();
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elog(ERROR, "Unable to create database directory '%s'.", lp);
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elog(ERROR, "CREATE DATABASE: Unable to create database directory '%s': %s", loc, strerror(errno));
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}
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snprintf(buf, sizeof(buf), "%s %s%cbase%ctemplate1%c* '%s'",
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COPY_CMD, DataDir, SEP_CHAR, SEP_CHAR, SEP_CHAR, lp);
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snprintf(buf, sizeof(buf), "cp %s%cbase%ctemplate1%c* '%s'",
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DataDir, SEP_CHAR, SEP_CHAR, SEP_CHAR, loc);
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if (system(buf) != 0) {
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rmdir(lp);
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int ret;
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snprintf(buf, sizeof(buf), "rm -rf '%s'", loc);
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ret = system(buf);
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UserAbortTransactionBlock();
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elog(ERROR, "Could not initialize database directory.");
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if (ret == 0)
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elog(ERROR, "CREATE DATABASE: Could not initialize database directory.");
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else
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elog(ERROR, "CREATE DATABASE: Could not initialize database directory. Delete failed as well.");
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}
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if (IsTransactionBlock())
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@ -111,45 +164,56 @@ createdb(char *dbname, char *dbpath, int encoding, CommandDest dest)
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/*
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* DROP DATABASE
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*/
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void
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dropdb(char *dbname, CommandDest dest)
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dropdb(const char *dbname)
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{
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int4 user_id;
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int4 user_id, db_owner;
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bool use_super;
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Oid db_id;
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char *path,
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dbpath[MAXPGPATH],
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buf[MAXPGPATH + 100];
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Relation pgdbrel;
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HeapScanDesc pgdbscan;
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ScanKeyData key;
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HeapTuple tup;
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/* no single quotes in dbname */
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if (strchr(dbname, '\'') != NULL)
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elog(ERROR, "Single quotes are not allowed in database names.");
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AssertArg(dbname);
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/*
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* If this call returns, the database exists and we're allowed to
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* remove it.
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*/
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check_permissions("dropdb", dbpath, dbname, &db_id, &user_id);
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if (strcmp(dbname, "template1") == 0)
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elog(ERROR, "DROP DATABASE: May not be executed on the template database.");
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/* do as much checking as we can... */
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if (!OidIsValid(db_id))
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elog(FATAL, "pg_database instance has an invalid OID");
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if (strcmp(dbname, DatabaseName) == 0)
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elog(ERROR, "DROP DATABASE: Cannot be executed on the currently open database.");
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if (!get_user_info(GetPgUserName(), &user_id, &use_super, NULL))
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elog(ERROR, "Current user name is invalid.");
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if (!get_db_info(dbname, dbpath, &db_id, &db_owner))
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elog(ERROR, "DROP DATABASE: Database \"%s\" does not exist.", dbname);
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if (user_id != db_owner && !use_super)
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elog(ERROR, "DROP DATABASE: Permission denied.");
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/* close virtual file descriptors so the kernel has more available for
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the system() calls */
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closeAllVfds();
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path = ExpandDatabasePath(dbpath);
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if (path == NULL)
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elog(ERROR, "The path '%s' is invalid.\n"
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"This may be due to a missing environment variable"
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" on the server.", path);
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/* stop the vacuum daemon (dead code...) */
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stop_vacuum(dbpath, dbname);
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elog(ERROR,
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"The database path '%s' is invalid. "
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"This may be due to a character that is not allowed or because the chosen "
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"path isn't permitted for databases.", path);
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/* don't call this in a transaction block */
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if (IsTransactionBlock())
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elog(ERROR, "dropdb: May not be called in a transaction block.");
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elog(ERROR, "DROP DATABASE: May not be called in a transaction block.");
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else
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BeginTransactionBlock();
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@ -170,8 +234,7 @@ dropdb(char *dbname, CommandDest dest)
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if (DatabaseHasActiveBackends(db_id)) {
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heap_close(pgdbrel, AccessExclusiveLock);
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UserAbortTransactionBlock();
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elog(ERROR, "Database '%s' has running backends, can't drop it.",
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dbname);
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elog(ERROR, "DROP DATABASE: Database \"%s\" is being accessed by other users.", dbname);
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}
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/*
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@ -187,19 +250,16 @@ dropdb(char *dbname, CommandDest dest)
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{
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heap_close(pgdbrel, AccessExclusiveLock);
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UserAbortTransactionBlock();
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elog(ERROR, "Database '%s', OID %u, not found in pg_database",
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dbname, db_id);
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/* This error should never come up since the existence of the
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database is checked earlier */
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elog(ERROR, "DROP DATABASE: Database \"%s\" doesn't exist despite earlier reports to the contrary.",
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dbname);
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}
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/*** Delete any comments associated with the database ***/
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/* Delete any comments associated with the database */
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DeleteComments(db_id);
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/*
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* Houston, we have launch commit...
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*
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* Remove the database's tuple from pg_database.
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*/
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/* Remove the database's tuple from pg_database */
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heap_delete(pgdbrel, &tup->t_self, NULL);
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heap_endscan(pgdbscan);
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@ -222,7 +282,7 @@ dropdb(char *dbname, CommandDest dest)
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*/
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snprintf(buf, sizeof(buf), "rm -rf '%s'", path);
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if (system(buf)!=0)
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elog(NOTICE, "The database directory '%s' could not be removed.", path);
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elog(NOTICE, "DROP DATABASE: The database directory '%s' could not be removed.", path);
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if (IsTransactionBlock())
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EndTransactionBlock();
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@ -230,186 +290,103 @@ dropdb(char *dbname, CommandDest dest)
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static HeapTuple
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get_pg_dbtup(char *command, char *dbname, Relation dbrel)
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/*
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* Helper functions
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*/
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static bool
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get_db_info(const char *name, char *dbpath, Oid *dbIdP, int4 *ownerIdP)
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{
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HeapTuple dbtup;
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HeapTuple tup;
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HeapScanDesc scan;
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Relation relation;
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HeapTuple tuple;
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ScanKeyData scanKey;
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HeapScanDesc scan;
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AssertArg(name);
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relation = heap_openr(DatabaseRelationName, AccessExclusiveLock/*???*/);
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ScanKeyEntryInitialize(&scanKey, 0, Anum_pg_database_datname,
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F_NAMEEQ, NameGetDatum(dbname));
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F_NAMEEQ, NameGetDatum(name));
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scan = heap_beginscan(dbrel, 0, SnapshotNow, 1, &scanKey);
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scan = heap_beginscan(relation, 0, SnapshotNow, 1, &scanKey);
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if (!HeapScanIsValid(scan))
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elog(ERROR, "%s: cannot begin scan of pg_database", command);
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elog(ERROR, "Cannot begin scan of %s.", DatabaseRelationName);
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/*
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* since we want to return the tuple out of this proc, and we're going
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* to close the relation, copy the tuple and return the copy.
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*/
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tup = heap_getnext(scan, 0);
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tuple = heap_getnext(scan, 0);
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if (HeapTupleIsValid(tup))
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dbtup = heap_copytuple(tup);
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if (HeapTupleIsValid(tuple))
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{
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text *tmptext;
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bool isnull;
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/* oid of the database */
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if (dbIdP)
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*dbIdP = tuple->t_data->t_oid;
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/* uid of the owner */
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if (ownerIdP)
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{
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*ownerIdP = (int4) heap_getattr(tuple,
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Anum_pg_database_datdba,
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RelationGetDescr(relation),
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&isnull);
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if (isnull)
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*ownerIdP = -1; /* hopefully no one has that id already ;) */
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}
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/* database path (as registered in pg_database) */
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if (dbpath)
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{
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tmptext = (text *) heap_getattr(tuple,
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Anum_pg_database_datpath,
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RelationGetDescr(relation),
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&isnull);
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if (!isnull)
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{
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Assert(VARSIZE(tmptext) - VARHDRSZ < MAXPGPATH);
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strncpy(dbpath, VARDATA(tmptext), VARSIZE(tmptext) - VARHDRSZ);
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*(dbpath + VARSIZE(tmptext) - VARHDRSZ) = '\0';
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}
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else
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strcpy(dbpath, "");
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}
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}
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else
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dbtup = tup;
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{
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if (dbIdP)
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*dbIdP = InvalidOid;
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}
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heap_endscan(scan);
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return dbtup;
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||||
/* We will keep the lock on the relation until end of transaction. */
|
||||
heap_close(relation, NoLock);
|
||||
|
||||
return HeapTupleIsValid(tuple);
|
||||
}
|
||||
|
||||
/*
|
||||
* check_permissions() -- verify that the user is permitted to do this.
|
||||
*
|
||||
* If the user is not allowed to carry out this operation, this routine
|
||||
* elog(ERROR, ...)s, which will abort the xact. As a side effect, the
|
||||
* user's pg_user tuple OID is returned in userIdP and the target database's
|
||||
* OID is returned in dbIdP.
|
||||
*/
|
||||
|
||||
static void
|
||||
check_permissions(char *command,
|
||||
char *dbpath,
|
||||
char *dbname,
|
||||
Oid *dbIdP,
|
||||
int4 *userIdP)
|
||||
|
||||
static bool
|
||||
get_user_info(const char * name, int4 *use_sysid, bool *use_super, bool *use_createdb)
|
||||
{
|
||||
Relation dbrel;
|
||||
HeapTuple dbtup,
|
||||
utup;
|
||||
int4 dbowner = 0;
|
||||
char use_createdb;
|
||||
bool dbfound;
|
||||
bool use_super;
|
||||
char *userName;
|
||||
text *dbtext;
|
||||
char path[MAXPGPATH];
|
||||
HeapTuple utup;
|
||||
|
||||
userName = GetPgUserName();
|
||||
AssertArg(name);
|
||||
utup = SearchSysCacheTuple(SHADOWNAME,
|
||||
PointerGetDatum(userName),
|
||||
PointerGetDatum(name),
|
||||
0, 0, 0);
|
||||
Assert(utup);
|
||||
*userIdP = ((Form_pg_shadow) GETSTRUCT(utup))->usesysid;
|
||||
use_super = ((Form_pg_shadow) GETSTRUCT(utup))->usesuper;
|
||||
use_createdb = ((Form_pg_shadow) GETSTRUCT(utup))->usecreatedb;
|
||||
|
||||
/* Check to make sure user has permission to use createdb */
|
||||
if (!use_createdb)
|
||||
{
|
||||
elog(ERROR, "user '%s' is not allowed to create/drop databases",
|
||||
userName);
|
||||
}
|
||||
if (!HeapTupleIsValid(utup))
|
||||
return false;
|
||||
|
||||
/* Make sure we are not mucking with the template database */
|
||||
if (!strcmp(dbname, "template1"))
|
||||
elog(ERROR, "%s: cannot be executed on the template database", command);
|
||||
if (use_sysid)
|
||||
*use_sysid = ((Form_pg_shadow) GETSTRUCT(utup))->usesysid;
|
||||
if (use_super)
|
||||
*use_super = ((Form_pg_shadow) GETSTRUCT(utup))->usesuper;
|
||||
if (use_createdb)
|
||||
*use_createdb = ((Form_pg_shadow) GETSTRUCT(utup))->usecreatedb;
|
||||
|
||||
/* Check to make sure database is not the currently open database */
|
||||
if (!strcmp(dbname, DatabaseName))
|
||||
elog(ERROR, "%s: cannot be executed on an open database", command);
|
||||
|
||||
/* Check to make sure database is owned by this user */
|
||||
|
||||
/*
|
||||
* Acquire exclusive lock on pg_database from the beginning, even though
|
||||
* we only need read access right here, to avoid potential deadlocks
|
||||
* from upgrading our lock later. (Is this still necessary? Could we
|
||||
* use something weaker than exclusive lock?)
|
||||
*/
|
||||
dbrel = heap_openr(DatabaseRelationName, AccessExclusiveLock);
|
||||
|
||||
dbtup = get_pg_dbtup(command, dbname, dbrel);
|
||||
dbfound = HeapTupleIsValid(dbtup);
|
||||
|
||||
if (dbfound)
|
||||
{
|
||||
dbowner = (int4) heap_getattr(dbtup,
|
||||
Anum_pg_database_datdba,
|
||||
RelationGetDescr(dbrel),
|
||||
(char *) NULL);
|
||||
*dbIdP = dbtup->t_data->t_oid;
|
||||
dbtext = (text *) heap_getattr(dbtup,
|
||||
Anum_pg_database_datpath,
|
||||
RelationGetDescr(dbrel),
|
||||
(char *) NULL);
|
||||
|
||||
strncpy(path, VARDATA(dbtext), (VARSIZE(dbtext) - VARHDRSZ));
|
||||
*(path + VARSIZE(dbtext) - VARHDRSZ) = '\0';
|
||||
}
|
||||
else
|
||||
*dbIdP = InvalidOid;
|
||||
|
||||
/* We will keep the lock on dbrel until end of transaction. */
|
||||
heap_close(dbrel, NoLock);
|
||||
|
||||
/*
|
||||
* Now be sure that the user is allowed to do this.
|
||||
*/
|
||||
|
||||
if (dbfound && !strcmp(command, "createdb"))
|
||||
{
|
||||
|
||||
elog(ERROR, "createdb: database '%s' already exists", dbname);
|
||||
|
||||
}
|
||||
else if (!dbfound && !strcmp(command, "dropdb"))
|
||||
{
|
||||
|
||||
elog(ERROR, "dropdb: database '%s' does not exist", dbname);
|
||||
|
||||
}
|
||||
else if (dbfound && !strcmp(command, "dropdb")
|
||||
&& dbowner != *userIdP && use_super == false)
|
||||
{
|
||||
|
||||
elog(ERROR, "%s: database '%s' is not owned by you", command, dbname);
|
||||
|
||||
}
|
||||
|
||||
if (dbfound && !strcmp(command, "dropdb"))
|
||||
strcpy(dbpath, path);
|
||||
} /* check_permissions() */
|
||||
|
||||
/*
|
||||
* stop_vacuum -- stop the vacuum daemon on the database, if one is running.
|
||||
*
|
||||
* This is currently dead code, since we don't *have* vacuum daemons.
|
||||
* If you want to re-enable it, think about the interlock against deleting
|
||||
* a database out from under running backends, in dropdb() above.
|
||||
*/
|
||||
static void
|
||||
stop_vacuum(char *dbpath, char *dbname)
|
||||
{
|
||||
#ifdef NOT_USED
|
||||
char filename[MAXPGPATH];
|
||||
FILE *fp;
|
||||
int pid;
|
||||
|
||||
if (strchr(dbpath, SEP_CHAR) != 0)
|
||||
{
|
||||
snprintf(filename, sizeof(filename), "%s%cbase%c%s%c%s.vacuum",
|
||||
DataDir, SEP_CHAR, SEP_CHAR, dbname, SEP_CHAR, dbname);
|
||||
}
|
||||
else
|
||||
snprintf(filename, sizeof(filename), "%s%c%s.vacuum",
|
||||
dbpath, SEP_CHAR, dbname);
|
||||
|
||||
#ifndef __CYGWIN32__
|
||||
if ((fp = AllocateFile(filename, "r")) != NULL)
|
||||
#else
|
||||
if ((fp = AllocateFile(filename, "rb")) != NULL)
|
||||
#endif
|
||||
{
|
||||
fscanf(fp, "%d", &pid);
|
||||
FreeFile(fp);
|
||||
if (kill(pid, SIGKILLDAEMON1) < 0)
|
||||
{
|
||||
elog(ERROR, "can't kill vacuum daemon (pid %d) on '%s'",
|
||||
pid, dbname);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
return true;
|
||||
}
|
||||
|
@ -10,7 +10,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.123 1999/12/16 17:24:14 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.124 2000/01/13 18:26:07 petere Exp $
|
||||
*
|
||||
* HISTORY
|
||||
* AUTHOR DATE MAJOR EVENT
|
||||
@ -131,7 +131,8 @@ static Node *doNegate(Node *n);
|
||||
RuleActionStmtOrEmpty, ConstraintsSetStmt,
|
||||
CreateGroupStmt, AlterGroupStmt, DropGroupStmt
|
||||
|
||||
%type <str> opt_database1, opt_database2, location, encoding
|
||||
%type <str> createdb_opt_location
|
||||
%type <ival> createdb_opt_encoding
|
||||
|
||||
%type <ival> opt_lock, lock_type
|
||||
%type <boolean> opt_lmode
|
||||
@ -156,7 +157,7 @@ static Node *doNegate(Node *n);
|
||||
all_Op, MathOp, opt_name, opt_unique,
|
||||
OptUseOp, opt_class, SpecialRuleRelation
|
||||
|
||||
%type <str> opt_level
|
||||
%type <str> opt_level, opt_encoding
|
||||
%type <str> privileges, operation_commalist, grantee
|
||||
%type <chr> operation, TriggerOneEvent
|
||||
|
||||
@ -709,7 +710,7 @@ VariableSetStmt: SET ColId TO var_value
|
||||
n->value = $5;
|
||||
$$ = (Node *) n;
|
||||
}
|
||||
| SET NAMES encoding
|
||||
| SET NAMES opt_encoding
|
||||
{
|
||||
#ifdef MULTIBYTE
|
||||
VariableSetStmt *n = makeNode(VariableSetStmt);
|
||||
@ -717,7 +718,7 @@ VariableSetStmt: SET ColId TO var_value
|
||||
n->value = $3;
|
||||
$$ = (Node *) n;
|
||||
#else
|
||||
elog(ERROR, "SET NAMES is not supported");
|
||||
elog(ERROR, "SET NAMES is not supported.");
|
||||
#endif
|
||||
}
|
||||
;
|
||||
@ -735,6 +736,11 @@ zone_value: Sconst { $$ = $1; }
|
||||
| LOCAL { $$ = NULL; }
|
||||
;
|
||||
|
||||
opt_encoding: Sconst { $$ = $1; }
|
||||
| DEFAULT { $$ = NULL; }
|
||||
| /*EMPTY*/ { $$ = NULL; }
|
||||
;
|
||||
|
||||
VariableShowStmt: SHOW ColId
|
||||
{
|
||||
VariableShowStmt *n = makeNode(VariableShowStmt);
|
||||
@ -2508,31 +2514,24 @@ LoadStmt: LOAD file_name
|
||||
|
||||
/*****************************************************************************
|
||||
*
|
||||
* QUERY:
|
||||
* createdb dbname
|
||||
* CREATE DATABASE
|
||||
*
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
CreatedbStmt: CREATE DATABASE database_name WITH opt_database1 opt_database2
|
||||
{
|
||||
CreatedbStmt *n = makeNode(CreatedbStmt);
|
||||
if ($5 == NULL && $6 == NULL) {
|
||||
elog(ERROR, "CREATE DATABASE WITH requires at least an option");
|
||||
}
|
||||
CreatedbStmt: CREATE DATABASE database_name WITH createdb_opt_location createdb_opt_encoding
|
||||
{
|
||||
CreatedbStmt *n;
|
||||
|
||||
if ($5 == NULL && $6 == -1)
|
||||
elog(ERROR, "CREATE DATABASE WITH requires at least one option.");
|
||||
|
||||
n = makeNode(CreatedbStmt);
|
||||
n->dbname = $3;
|
||||
n->dbpath = $5;
|
||||
#ifdef MULTIBYTE
|
||||
if ($6 != NULL) {
|
||||
n->encoding = pg_char_to_encoding($6);
|
||||
if (n->encoding < 0) {
|
||||
elog(ERROR, "invalid encoding name %s", $6);
|
||||
}
|
||||
} else {
|
||||
n->encoding = GetTemplateEncoding();
|
||||
}
|
||||
n->encoding = $6;
|
||||
#else
|
||||
if ($6 != NULL)
|
||||
elog(ERROR, "WITH ENCODING is not supported");
|
||||
n->encoding = 0;
|
||||
#endif
|
||||
$$ = (Node *)n;
|
||||
@ -2551,28 +2550,57 @@ CreatedbStmt: CREATE DATABASE database_name WITH opt_database1 opt_database2
|
||||
}
|
||||
;
|
||||
|
||||
opt_database1: LOCATION '=' location { $$ = $3; }
|
||||
createdb_opt_location: LOCATION '=' Sconst { $$ = $3; }
|
||||
| LOCATION '=' DEFAULT { $$ = NULL; }
|
||||
| /*EMPTY*/ { $$ = NULL; }
|
||||
;
|
||||
|
||||
opt_database2: ENCODING '=' encoding { $$ = $3; }
|
||||
| /*EMPTY*/ { $$ = NULL; }
|
||||
;
|
||||
createdb_opt_encoding:
|
||||
ENCODING '=' Sconst
|
||||
{
|
||||
#ifdef MULTIBYTE
|
||||
int i;
|
||||
i = pg_char_to_encoding($3);
|
||||
if (i == -1)
|
||||
elog(ERROR, "%s is not a valid encoding name.", $3);
|
||||
$$ = i;
|
||||
#else
|
||||
elog(ERROR, "WITH ENCODING is not supported.");
|
||||
#endif
|
||||
}
|
||||
| ENCODING '=' Iconst
|
||||
{
|
||||
#ifdef MULTIBYTE
|
||||
if (!pg_get_encent_by_encoding($3))
|
||||
elog(ERROR, "%d is not a valid encoding code.", $3);
|
||||
$$ = $3;
|
||||
#else
|
||||
elog(ERROR, "WITH ENCODING is not supported.");
|
||||
#endif
|
||||
}
|
||||
| ENCODING '=' DEFAULT
|
||||
{
|
||||
#ifdef MULTIBYTE
|
||||
$$ = GetTemplateEncoding();
|
||||
#else
|
||||
$$ = -1;
|
||||
#endif
|
||||
}
|
||||
| /*EMPTY*/
|
||||
{
|
||||
#ifdef MULTIBYTE
|
||||
$$ = GetTemplateEncoding();
|
||||
#else
|
||||
$$= -1;
|
||||
#endif
|
||||
}
|
||||
;
|
||||
|
||||
location: Sconst { $$ = $1; }
|
||||
| DEFAULT { $$ = NULL; }
|
||||
| /*EMPTY*/ { $$ = NULL; }
|
||||
;
|
||||
|
||||
encoding: Sconst { $$ = $1; }
|
||||
| DEFAULT { $$ = NULL; }
|
||||
| /*EMPTY*/ { $$ = NULL; }
|
||||
;
|
||||
|
||||
/*****************************************************************************
|
||||
*
|
||||
* QUERY:
|
||||
* dropdb dbname
|
||||
* DROP DATABASE
|
||||
*
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.61 2000/01/10 06:30:51 inoue Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.62 2000/01/13 18:26:09 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -623,8 +623,6 @@ mdblindwrt(char *dbstr,
|
||||
/* user table? then put in user database area... */
|
||||
else if (dbid == MyDatabaseId)
|
||||
{
|
||||
extern char *DatabasePath;
|
||||
|
||||
path = (char *) palloc(strlen(DatabasePath) + 2 * sizeof(NameData) + 2 + nchars);
|
||||
if (segno == 0)
|
||||
sprintf(path, "%s%c%s", DatabasePath, SEP_CHAR, relstr);
|
||||
@ -663,8 +661,6 @@ mdblindwrt(char *dbstr,
|
||||
/* user table? then put in user database area... */
|
||||
else if (dbid == MyDatabaseId)
|
||||
{
|
||||
extern char *DatabasePath;
|
||||
|
||||
path = (char *) palloc(strlen(DatabasePath) + 2 * sizeof(NameData) + 2);
|
||||
sprintf(path, "%s%c%s", DatabasePath, SEP_CHAR, relstr);
|
||||
}
|
||||
|
@ -9,7 +9,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.76 1999/12/20 01:19:58 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.77 2000/01/13 18:26:10 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -592,7 +592,7 @@ ProcessUtility(Node *parsetree,
|
||||
|
||||
PS_SET_STATUS(commandTag = "CREATE DATABASE");
|
||||
CHECK_IF_ABORTED();
|
||||
createdb(stmt->dbname, stmt->dbpath, stmt->encoding, dest);
|
||||
createdb(stmt->dbname, stmt->dbpath, stmt->encoding);
|
||||
}
|
||||
break;
|
||||
|
||||
@ -602,7 +602,7 @@ ProcessUtility(Node *parsetree,
|
||||
|
||||
PS_SET_STATUS(commandTag = "DROP DATABASE");
|
||||
CHECK_IF_ABORTED();
|
||||
dropdb(stmt->dbname, dest);
|
||||
dropdb(stmt->dbname);
|
||||
}
|
||||
break;
|
||||
|
||||
|
@ -7,10 +7,12 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.38 2000/01/09 12:15:57 ishii Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.39 2000/01/13 18:26:11 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
#include "postgres.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/types.h>
|
||||
#include <signal.h>
|
||||
@ -19,177 +21,21 @@
|
||||
#include <unistd.h>
|
||||
#include <grp.h>
|
||||
#include <pwd.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "postgres.h"
|
||||
#include "catalog/catname.h"
|
||||
#include "catalog/pg_shadow.h"
|
||||
#include "miscadmin.h"
|
||||
#include "utils/syscache.h"
|
||||
|
||||
|
||||
/*
|
||||
* EnableAbortEnvVarName
|
||||
* Enables system abort iff set to a non-empty string in environment.
|
||||
*/
|
||||
#define EnableAbortEnvVarName "POSTGRESABORT"
|
||||
|
||||
extern char *getenv(const char *name); /* XXX STDLIB */
|
||||
|
||||
/* from globals.c */
|
||||
extern char *UserName;
|
||||
|
||||
#ifdef CYR_RECODE
|
||||
unsigned char RecodeForwTable[128];
|
||||
unsigned char RecodeBackTable[128];
|
||||
|
||||
#endif
|
||||
|
||||
ProcessingMode Mode = InitProcessing;
|
||||
|
||||
/*
|
||||
* Define USE_ENVIRONMENT to get PGDATA, etc. from environment variables.
|
||||
* This is the default on UNIX platforms.
|
||||
*/
|
||||
#define USE_ENVIRONMENT
|
||||
|
||||
/* ----------------------------------------------------------------
|
||||
* some of the 19 ways to leave postgres
|
||||
* ----------------------------------------------------------------
|
||||
*/
|
||||
|
||||
/*
|
||||
* ExitPostgres
|
||||
* Exit POSTGRES with a status code.
|
||||
*
|
||||
* Note:
|
||||
* This function never returns.
|
||||
* ...
|
||||
*
|
||||
* Side effects:
|
||||
* ...
|
||||
*
|
||||
* Exceptions:
|
||||
* none
|
||||
*/
|
||||
void
|
||||
ExitPostgres(ExitStatus status)
|
||||
{
|
||||
proc_exit(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* AbortPostgres
|
||||
* Abort POSTGRES dumping core.
|
||||
*
|
||||
* Note:
|
||||
* This function never returns.
|
||||
* ...
|
||||
*
|
||||
* Side effects:
|
||||
* Core is dumped iff EnableAbortEnvVarName is set to a non-empty string.
|
||||
* ...
|
||||
*
|
||||
* Exceptions:
|
||||
* none
|
||||
*/
|
||||
#ifdef NOT_USED
|
||||
void
|
||||
AbortPostgres()
|
||||
{
|
||||
char *abortValue = getenv(EnableAbortEnvVarName);
|
||||
|
||||
if (PointerIsValid(abortValue) && abortValue[0] != '\0')
|
||||
abort();
|
||||
else
|
||||
proc_exit(FatalExitStatus);
|
||||
}
|
||||
|
||||
|
||||
/* ----------------
|
||||
* StatusBackendExit
|
||||
* ----------------
|
||||
*/
|
||||
void
|
||||
StatusBackendExit(int status)
|
||||
{
|
||||
/* someday, do some real cleanup and then call the LISP exit */
|
||||
/* someday, call StatusPostmasterExit if running without postmaster */
|
||||
proc_exit(status);
|
||||
}
|
||||
|
||||
/* ----------------
|
||||
* StatusPostmasterExit
|
||||
* ----------------
|
||||
*/
|
||||
void
|
||||
StatusPostmasterExit(int status)
|
||||
{
|
||||
/* someday, do some real cleanup and then call the LISP exit */
|
||||
proc_exit(status);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/* ----------------------------------------------------------------
|
||||
* processing mode support stuff (used to be in pmod.c)
|
||||
* ----------------------------------------------------------------
|
||||
*/
|
||||
static ProcessingMode Mode = InitProcessing;
|
||||
|
||||
/*
|
||||
* IsBootstrapProcessingMode
|
||||
* True iff processing mode is BootstrapProcessing.
|
||||
*/
|
||||
bool
|
||||
IsBootstrapProcessingMode()
|
||||
{
|
||||
return (bool) (Mode == BootstrapProcessing);
|
||||
}
|
||||
|
||||
/*
|
||||
* IsInitProcessingMode
|
||||
* True iff processing mode is InitProcessing.
|
||||
*/
|
||||
bool
|
||||
IsInitProcessingMode()
|
||||
{
|
||||
return (bool) (Mode == InitProcessing);
|
||||
}
|
||||
|
||||
/*
|
||||
* IsNormalProcessingMode
|
||||
* True iff processing mode is NormalProcessing.
|
||||
*/
|
||||
bool
|
||||
IsNormalProcessingMode()
|
||||
{
|
||||
return (bool) (Mode == NormalProcessing);
|
||||
}
|
||||
|
||||
/*
|
||||
* SetProcessingMode
|
||||
* Sets mode of processing as specified.
|
||||
*
|
||||
* Exceptions:
|
||||
* BadArg if called with invalid mode.
|
||||
*
|
||||
* Note:
|
||||
* Mode is InitProcessing before the first time this is called.
|
||||
*/
|
||||
void
|
||||
SetProcessingMode(ProcessingMode mode)
|
||||
{
|
||||
AssertArg(mode == BootstrapProcessing || mode == InitProcessing ||
|
||||
mode == NormalProcessing);
|
||||
|
||||
Mode = mode;
|
||||
}
|
||||
|
||||
ProcessingMode
|
||||
GetProcessingMode()
|
||||
{
|
||||
return Mode;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------
|
||||
* database path / name support stuff
|
||||
@ -197,22 +43,26 @@ GetProcessingMode()
|
||||
*/
|
||||
|
||||
void
|
||||
SetDatabasePath(char *path)
|
||||
SetDatabasePath(const char *path)
|
||||
{
|
||||
/* use malloc since this is done before memory contexts are set up */
|
||||
if (DatabasePath)
|
||||
free(DatabasePath);
|
||||
DatabasePath = malloc(strlen(path) + 1);
|
||||
strcpy(DatabasePath, path);
|
||||
free(DatabasePath);
|
||||
/* use strdup since this is done before memory contexts are set up */
|
||||
if (path)
|
||||
{
|
||||
DatabasePath = strdup(path);
|
||||
AssertState(DatabasePath);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
SetDatabaseName(char *name)
|
||||
SetDatabaseName(const char *name)
|
||||
{
|
||||
if (DatabaseName)
|
||||
free(DatabaseName);
|
||||
DatabaseName = malloc(strlen(name) + 1);
|
||||
strcpy(DatabaseName, name);
|
||||
free(DatabaseName);
|
||||
if (name)
|
||||
{
|
||||
DatabaseName = strdup(name);
|
||||
AssertState(DatabaseName);
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef MULTIBYTE
|
||||
@ -431,7 +281,7 @@ static Oid UserId = InvalidOid;
|
||||
int
|
||||
GetUserId()
|
||||
{
|
||||
Assert(OidIsValid(UserId));
|
||||
AssertState(OidIsValid(UserId));
|
||||
return UserId;
|
||||
}
|
||||
|
||||
@ -441,7 +291,7 @@ SetUserId()
|
||||
HeapTuple userTup;
|
||||
char *userName;
|
||||
|
||||
Assert(!OidIsValid(UserId));/* only once */
|
||||
AssertState(!OidIsValid(UserId));/* only once */
|
||||
|
||||
/*
|
||||
* Don't do scans if we're bootstrapping, none of the system catalogs
|
||||
|
@ -7,22 +7,8 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.54 1999/12/22 00:07:16 inoue Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.55 2000/01/13 18:26:11 petere Exp $
|
||||
*
|
||||
* NOTES
|
||||
* InitPostgres() is the function called from PostgresMain
|
||||
* which does all non-trival initialization, mainly by calling
|
||||
* all the other initialization functions. InitPostgres()
|
||||
* is only used within the "postgres" backend and so that routine
|
||||
* is in tcop/postgres.c InitPostgres() is needed in cinterface.a
|
||||
* because things like the bootstrap backend program need it. Hence
|
||||
* you find that in this file...
|
||||
*
|
||||
* If you feel the need to add more initialization code, it should be
|
||||
* done in InitPostgres() or someplace lower. Do not start
|
||||
* putting stuff in PostgresMain - if you do then someone
|
||||
* will have to clean it up later, and it's not going to be me!
|
||||
* -cim 10/3/90
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -55,193 +41,13 @@
|
||||
|
||||
void BaseInit(void);
|
||||
|
||||
static void VerifySystemDatabase(void);
|
||||
static void VerifyMyDatabase(void);
|
||||
static void ReverifyMyDatabase(char *name);
|
||||
static void ReverifyMyDatabase(const char *name);
|
||||
static void InitCommunication(void);
|
||||
static void InitMyDatabaseInfo(char *name);
|
||||
static void InitUserid(void);
|
||||
|
||||
|
||||
static IPCKey PostgresIpcKey;
|
||||
|
||||
/* ----------------------------------------------------------------
|
||||
* InitPostgres support
|
||||
* ----------------------------------------------------------------
|
||||
*/
|
||||
/*** InitPostgres support ***/
|
||||
|
||||
/* --------------------------------
|
||||
* InitMyDatabaseInfo() -- Find and record the OID of the database we are
|
||||
* to open.
|
||||
*
|
||||
* The database's oid forms half of the unique key for the system
|
||||
* caches and lock tables. We therefore want it initialized before
|
||||
* we open any relations, since opening relations puts things in the
|
||||
* cache. To get around this problem, this code opens and scans the
|
||||
* pg_database relation by hand.
|
||||
*
|
||||
* This algorithm relies on the fact that first attribute in the
|
||||
* pg_database relation schema is the database name. It also knows
|
||||
* about the internal format of tuples on disk and the length of
|
||||
* the datname attribute. It knows the location of the pg_database
|
||||
* file.
|
||||
* Actually, the code looks as though it is using the pg_database
|
||||
* tuple definition to locate the database name, so the above statement
|
||||
* seems to be no longer correct. - thomas 1997-11-01
|
||||
*
|
||||
* This code is called from InitPostgres(), before we chdir() to the
|
||||
* local database directory and before we open any relations.
|
||||
* Used to be called after the chdir(), but we now want to confirm
|
||||
* the location of the target database using pg_database info.
|
||||
* - thomas 1997-11-01
|
||||
* --------------------------------
|
||||
*/
|
||||
static void
|
||||
InitMyDatabaseInfo(char *name)
|
||||
{
|
||||
char *path,
|
||||
myPath[MAXPGPATH];
|
||||
|
||||
SetDatabaseName(name);
|
||||
GetRawDatabaseInfo(name, &MyDatabaseId, myPath);
|
||||
|
||||
if (!OidIsValid(MyDatabaseId))
|
||||
elog(FATAL,
|
||||
"Database %s does not exist in %s",
|
||||
DatabaseName,
|
||||
DatabaseRelationName);
|
||||
|
||||
path = ExpandDatabasePath(myPath);
|
||||
SetDatabasePath(path);
|
||||
} /* InitMyDatabaseInfo() */
|
||||
|
||||
|
||||
/*
|
||||
* DoChdirAndInitDatabaseNameAndPath
|
||||
* Set current directory to the database directory for the database
|
||||
* named <name>.
|
||||
* Also set global variables DatabasePath and DatabaseName to those
|
||||
* values. Also check for proper version of database system and
|
||||
* database. Exit program via elog() if anything doesn't check out.
|
||||
*
|
||||
* Arguments:
|
||||
* Path and name are invalid if it invalid as a string.
|
||||
* Path is "badly formatted" if it is not a string containing a path
|
||||
* to a writable directory.
|
||||
* Name is "badly formatted" if it contains more than 16 characters or if
|
||||
* it is a bad file name (e.g., it contains a '/' or an 8-bit character).
|
||||
*
|
||||
* Exceptions:
|
||||
* BadState if called more than once.
|
||||
* BadArg if both path and name are "badly formatted" or invalid.
|
||||
* BadArg if path and name are both "inconsistent" and valid.
|
||||
*
|
||||
* This routine is inappropriate in bootstrap mode, since the directories
|
||||
* and version files need not exist yet if we're in bootstrap mode.
|
||||
*/
|
||||
static void
|
||||
VerifySystemDatabase()
|
||||
{
|
||||
char *reason;
|
||||
/* Failure reason returned by some function. NULL if no failure */
|
||||
int fd;
|
||||
char errormsg[MAXPGPATH+100];
|
||||
|
||||
errormsg[0] = '\0';
|
||||
|
||||
#ifndef __CYGWIN32__
|
||||
if ((fd = open(DataDir, O_RDONLY, 0)) == -1)
|
||||
#else
|
||||
if ((fd = open(DataDir, O_RDONLY | O_DIROPEN, 0)) == -1)
|
||||
#endif
|
||||
snprintf(errormsg, sizeof(errormsg),
|
||||
"Database system does not exist. "
|
||||
"PGDATA directory '%s' not found.\n\tNormally, you "
|
||||
"create a database system by running initdb.",
|
||||
DataDir);
|
||||
else
|
||||
{
|
||||
close(fd);
|
||||
ValidatePgVersion(DataDir, &reason);
|
||||
if (reason != NULL)
|
||||
snprintf(errormsg, sizeof(errormsg),
|
||||
"InitPostgres could not validate that the database"
|
||||
" system version is compatible with this level of"
|
||||
" Postgres.\n\tYou may need to run initdb to create"
|
||||
" a new database system.\n\t%s", reason);
|
||||
}
|
||||
if (errormsg[0] != '\0')
|
||||
elog(FATAL, errormsg);
|
||||
/* Above does not return */
|
||||
} /* VerifySystemDatabase() */
|
||||
|
||||
|
||||
static void
|
||||
VerifyMyDatabase()
|
||||
{
|
||||
const char *name;
|
||||
const char *myPath;
|
||||
|
||||
/* Failure reason returned by some function. NULL if no failure */
|
||||
char *reason;
|
||||
int fd;
|
||||
char errormsg[MAXPGPATH+100];
|
||||
|
||||
name = DatabaseName;
|
||||
myPath = DatabasePath;
|
||||
|
||||
#ifndef __CYGWIN32__
|
||||
if ((fd = open(myPath, O_RDONLY, 0)) == -1)
|
||||
#else
|
||||
if ((fd = open(myPath, O_RDONLY | O_DIROPEN, 0)) == -1)
|
||||
#endif
|
||||
snprintf(errormsg, sizeof(errormsg),
|
||||
"Database '%s' does not exist."
|
||||
"\n\tWe know this because the directory '%s' does not exist."
|
||||
"\n\tYou can create a database with the SQL command"
|
||||
" CREATE DATABASE.\n\tTo see what databases exist,"
|
||||
" look at the subdirectories of '%s/base/'.",
|
||||
name, myPath, DataDir);
|
||||
else
|
||||
{
|
||||
close(fd);
|
||||
ValidatePgVersion(myPath, &reason);
|
||||
if (reason != NULL)
|
||||
snprintf(errormsg, sizeof(errormsg),
|
||||
"InitPostgres could not validate that the database"
|
||||
" version is compatible with this level of Postgres"
|
||||
"\n\teven though the database system as a whole"
|
||||
" appears to be at a compatible level."
|
||||
"\n\tYou may need to recreate the database with SQL"
|
||||
" commands DROP DATABASE and CREATE DATABASE."
|
||||
"\n\t%s", reason);
|
||||
else
|
||||
{
|
||||
|
||||
/*
|
||||
* The directories and PG_VERSION files are in order.
|
||||
*/
|
||||
int rc; /* return code from some function we call */
|
||||
|
||||
#ifdef FILEDEBUG
|
||||
printf("Try changing directory for database %s to %s\n", name, myPath);
|
||||
#endif
|
||||
|
||||
rc = chdir(myPath);
|
||||
if (rc < 0)
|
||||
snprintf(errormsg, sizeof(errormsg),
|
||||
"InitPostgres unable to change "
|
||||
"current directory to '%s', errno = %s (%d).",
|
||||
myPath, strerror(errno), errno);
|
||||
else
|
||||
errormsg[0] = '\0';
|
||||
}
|
||||
}
|
||||
|
||||
if (errormsg[0] != '\0')
|
||||
elog(FATAL, errormsg);
|
||||
/* Above does not return */
|
||||
} /* VerifyMyDatabase() */
|
||||
|
||||
/* --------------------------------
|
||||
* ReverifyMyDatabase
|
||||
@ -266,7 +72,7 @@ VerifyMyDatabase()
|
||||
* --------------------------------
|
||||
*/
|
||||
static void
|
||||
ReverifyMyDatabase(char *name)
|
||||
ReverifyMyDatabase(const char *name)
|
||||
{
|
||||
Relation pgdbrel;
|
||||
HeapScanDesc pgdbscan;
|
||||
@ -324,18 +130,7 @@ ReverifyMyDatabase(char *name)
|
||||
heap_close(pgdbrel, AccessShareLock);
|
||||
}
|
||||
|
||||
/* --------------------------------
|
||||
* InitUserid
|
||||
*
|
||||
* initializes crap associated with the user id.
|
||||
* --------------------------------
|
||||
*/
|
||||
static void
|
||||
InitUserid()
|
||||
{
|
||||
setuid(geteuid());
|
||||
SetUserId();
|
||||
}
|
||||
|
||||
|
||||
/* --------------------------------
|
||||
* InitCommunication
|
||||
@ -416,6 +211,8 @@ InitCommunication()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* --------------------------------
|
||||
* InitPostgres
|
||||
* Initialize POSTGRES.
|
||||
@ -431,14 +228,9 @@ int lockingOff = 0; /* backend -L switch */
|
||||
/*
|
||||
*/
|
||||
void
|
||||
InitPostgres(char *name) /* database name */
|
||||
InitPostgres(const char *dbname)
|
||||
{
|
||||
bool bootstrap; /* true if BootstrapProcessing */
|
||||
|
||||
/*
|
||||
* See if we're running in BootstrapProcessing mode
|
||||
*/
|
||||
bootstrap = IsBootstrapProcessingMode();
|
||||
bool bootstrap = IsBootstrapProcessingMode();
|
||||
|
||||
/* ----------------
|
||||
* initialize the backend local portal stack used by
|
||||
@ -449,9 +241,7 @@ InitPostgres(char *name) /* database name */
|
||||
*/
|
||||
be_portalinit();
|
||||
|
||||
/*
|
||||
* initialize the local buffer manager
|
||||
*/
|
||||
/* initialize the local buffer manager */
|
||||
InitLocalBuffer();
|
||||
|
||||
#ifndef XLOG
|
||||
@ -459,32 +249,72 @@ InitPostgres(char *name) /* database name */
|
||||
on_shmem_exit(FlushBufferPool, (caddr_t) NULL);
|
||||
#endif
|
||||
|
||||
SetDatabaseName(dbname);
|
||||
/* ----------------
|
||||
* initialize the database id used for system caches and lock tables
|
||||
* ----------------
|
||||
*/
|
||||
if (bootstrap)
|
||||
{
|
||||
SetDatabasePath(ExpandDatabasePath(name));
|
||||
SetDatabaseName(name);
|
||||
SetDatabasePath(ExpandDatabasePath(dbname));
|
||||
LockDisable(true);
|
||||
}
|
||||
else
|
||||
{
|
||||
VerifySystemDatabase();
|
||||
InitMyDatabaseInfo(name);
|
||||
VerifyMyDatabase();
|
||||
char *reason;
|
||||
char *fullpath,
|
||||
datpath[MAXPGPATH];
|
||||
|
||||
/* Verify if DataDir is ok */
|
||||
if (access(DataDir, F_OK) == -1)
|
||||
elog(FATAL, "Database system not found. Data directory '%s' does not exist.",
|
||||
DataDir);
|
||||
|
||||
ValidatePgVersion(DataDir, &reason);
|
||||
if (reason != NULL)
|
||||
elog(FATAL, reason);
|
||||
|
||||
/*-----------------
|
||||
* Find oid and path of the database we're about to open. Since we're
|
||||
* not yet up and running we have to use the hackish GetRawDatabaseInfo.
|
||||
*
|
||||
* OLD COMMENTS:
|
||||
* The database's oid forms half of the unique key for the system
|
||||
* caches and lock tables. We therefore want it initialized before
|
||||
* we open any relations, since opening relations puts things in the
|
||||
* cache. To get around this problem, this code opens and scans the
|
||||
* pg_database relation by hand.
|
||||
*/
|
||||
|
||||
GetRawDatabaseInfo(dbname, &MyDatabaseId, datpath);
|
||||
|
||||
if (!OidIsValid(MyDatabaseId))
|
||||
elog(FATAL,
|
||||
"Database \"%s\" does not exist in the system catalog.",
|
||||
dbname);
|
||||
|
||||
fullpath = ExpandDatabasePath(datpath);
|
||||
if (!fullpath)
|
||||
elog(FATAL, "Database path could not be resolved.");
|
||||
|
||||
/* Verify the database path */
|
||||
|
||||
if (access(fullpath, F_OK) == -1)
|
||||
elog(FATAL, "Database \"%s\" does not exist. The data directory '%s' is missing.",
|
||||
dbname, fullpath);
|
||||
|
||||
ValidatePgVersion(fullpath, &reason);
|
||||
if (reason != NULL)
|
||||
elog(FATAL, "%s", reason);
|
||||
|
||||
if(chdir(fullpath) == -1)
|
||||
elog(FATAL, "Unable to change directory to '%s': %s", fullpath, strerror(errno));
|
||||
|
||||
SetDatabasePath(fullpath);
|
||||
}
|
||||
|
||||
/*
|
||||
* Code after this point assumes we are in the proper directory!
|
||||
*
|
||||
* So, how do we implement alternate locations for databases? There are
|
||||
* two possible locations for tables and we need to look in
|
||||
* DataDir/pg_database to find the true location of an individual
|
||||
* database. We can brute-force it as done in InitMyDatabaseInfo(), or
|
||||
* we can be patient and wait until we open pg_database gracefully.
|
||||
* Will try that, but may not work... - thomas 1997-11-01
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -549,12 +379,14 @@ InitPostgres(char *name) /* database name */
|
||||
/* start a new transaction here before access to db */
|
||||
if (!bootstrap)
|
||||
StartTransactionCommand();
|
||||
|
||||
/*
|
||||
* Set ourselves to the proper user id and figure out our postgres
|
||||
* user id. If we ever add security so that we check for valid
|
||||
* postgres users, we might do it here.
|
||||
*/
|
||||
InitUserid();
|
||||
setuid(geteuid());
|
||||
SetUserId();
|
||||
|
||||
if (lockingOff)
|
||||
LockDisable(true);
|
||||
@ -565,7 +397,7 @@ InitPostgres(char *name) /* database name */
|
||||
* infrastructure is up, so just do it at the end.
|
||||
*/
|
||||
if (!bootstrap)
|
||||
ReverifyMyDatabase(name);
|
||||
ReverifyMyDatabase(dbname);
|
||||
}
|
||||
|
||||
void
|
||||
|
@ -7,100 +7,43 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/misc/Attic/database.c,v 1.33 1999/12/16 22:19:55 wieck Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/misc/Attic/database.c,v 1.34 2000/01/13 18:26:13 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include "postgres.h"
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "access/xact.h"
|
||||
#include "catalog/catname.h"
|
||||
#include "catalog/pg_database.h"
|
||||
#include "miscadmin.h"
|
||||
#include "utils/syscache.h"
|
||||
|
||||
#ifdef NOT_USED
|
||||
/* GetDatabaseInfo()
|
||||
* Pull database information from pg_database.
|
||||
|
||||
/*
|
||||
* ExpandDatabasePath resolves a proposed database path (obtained from
|
||||
* pg_database.datpath) to a full absolute path for further consumption.
|
||||
* NULL means an error, which the caller should process. One reason for
|
||||
* such an error would be an absolute alternative path when no absolute
|
||||
* paths are alllowed.
|
||||
*/
|
||||
int
|
||||
GetDatabaseInfo(char *name, int4 *owner, char *path)
|
||||
{
|
||||
Oid dbowner,
|
||||
dbid;
|
||||
char dbpath[MAXPGPATH];
|
||||
text *dbtext;
|
||||
|
||||
Relation dbrel;
|
||||
HeapTuple dbtup;
|
||||
HeapTuple tup;
|
||||
HeapScanDesc scan;
|
||||
ScanKeyData scanKey;
|
||||
|
||||
dbrel = heap_openr(DatabaseRelationName, AccessShareLock);
|
||||
|
||||
ScanKeyEntryInitialize(&scanKey, 0, Anum_pg_database_datname,
|
||||
F_NAMEEQ, NameGetDatum(name));
|
||||
|
||||
scan = heap_beginscan(dbrel, 0, SnapshotNow, 1, &scanKey);
|
||||
if (!HeapScanIsValid(scan))
|
||||
elog(ERROR, "GetDatabaseInfo: cannot begin scan of %s", DatabaseRelationName);
|
||||
|
||||
/*
|
||||
* Since we're going to close the relation, copy the tuple.
|
||||
*/
|
||||
tup = heap_getnext(scan, 0);
|
||||
|
||||
if (HeapTupleIsValid(tup))
|
||||
dbtup = heap_copytuple(tup);
|
||||
else
|
||||
dbtup = tup;
|
||||
|
||||
heap_endscan(scan);
|
||||
|
||||
if (!HeapTupleIsValid(dbtup))
|
||||
{
|
||||
elog(NOTICE, "GetDatabaseInfo: %s entry not found %s",
|
||||
DatabaseRelationName, name);
|
||||
heap_close(dbrel, AccessShareLock);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
dbowner = (Oid) heap_getattr(dbtup,
|
||||
Anum_pg_database_datdba,
|
||||
RelationGetDescr(dbrel),
|
||||
(char *) NULL);
|
||||
dbid = dbtup->t_oid;
|
||||
|
||||
dbtext = (text *) heap_getattr(dbtup,
|
||||
Anum_pg_database_datpath,
|
||||
RelationGetDescr(dbrel),
|
||||
(char *) NULL);
|
||||
|
||||
memcpy(dbpath, VARDATA(dbtext), (VARSIZE(dbtext) - VARHDRSZ));
|
||||
*(dbpath + (VARSIZE(dbtext) - VARHDRSZ)) = '\0';
|
||||
|
||||
heap_close(dbrel, AccessShareLock);
|
||||
|
||||
owner = palloc(sizeof(Oid));
|
||||
*owner = dbowner;
|
||||
path = pstrdup(dbpath); /* doesn't do the right thing! */
|
||||
|
||||
return FALSE;
|
||||
} /* GetDatabaseInfo() */
|
||||
|
||||
#endif
|
||||
|
||||
char *
|
||||
ExpandDatabasePath(char *dbpath)
|
||||
ExpandDatabasePath(const char *dbpath)
|
||||
{
|
||||
char buf[MAXPGPATH];
|
||||
char *cp;
|
||||
char *envvar;
|
||||
const char *cp;
|
||||
int len;
|
||||
|
||||
AssertArg(dbpath);
|
||||
Assert(DataDir);
|
||||
|
||||
if (strlen(dbpath) >= MAXPGPATH)
|
||||
return NULL; /* ain't gonna fit nohow */
|
||||
|
||||
@ -120,17 +63,14 @@ ExpandDatabasePath(char *dbpath)
|
||||
/* path delimiter somewhere? then has leading environment variable */
|
||||
else if ((cp = strchr(dbpath, SEP_CHAR)) != NULL)
|
||||
{
|
||||
const char *envvar;
|
||||
|
||||
len = cp - dbpath;
|
||||
strncpy(buf, dbpath, len);
|
||||
buf[len] = '\0';
|
||||
envvar = getenv(buf);
|
||||
|
||||
/*
|
||||
* problem getting environment variable? let calling routine
|
||||
* handle it
|
||||
*/
|
||||
if (envvar == NULL)
|
||||
return envvar;
|
||||
return NULL;
|
||||
|
||||
snprintf(buf, sizeof(buf), "%s%cbase%c%s",
|
||||
envvar, SEP_CHAR, SEP_CHAR, (cp + 1));
|
||||
@ -142,10 +82,29 @@ ExpandDatabasePath(char *dbpath)
|
||||
DataDir, SEP_CHAR, SEP_CHAR, dbpath);
|
||||
}
|
||||
|
||||
/* check for illegal characters in dbpath */
|
||||
for(cp = buf; *cp; cp++)
|
||||
{
|
||||
/* The following characters will not be allowed anywhere in the database
|
||||
path. (Do not include the slash here.) */
|
||||
char illegal_dbpath_chars[] =
|
||||
"\001\002\003\004\005\006\007\010"
|
||||
"\011\012\013\014\015\016\017\020"
|
||||
"\021\022\023\024\025\026\027\030"
|
||||
"\031\032\033\034\035\036\037"
|
||||
"'.";
|
||||
|
||||
const char *cx;
|
||||
for (cx = illegal_dbpath_chars; *cx; cx++)
|
||||
if (*cp == *cx)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return pstrdup(buf);
|
||||
} /* ExpandDatabasePath() */
|
||||
|
||||
|
||||
|
||||
/* --------------------------------
|
||||
* GetRawDatabaseInfo() -- Find the OID and path of the database.
|
||||
*
|
||||
@ -161,10 +120,9 @@ ExpandDatabasePath(char *dbpath)
|
||||
* --------------------------------
|
||||
*/
|
||||
void
|
||||
GetRawDatabaseInfo(char *name, Oid *db_id, char *path)
|
||||
GetRawDatabaseInfo(const char *name, Oid *db_id, char *path)
|
||||
{
|
||||
int dbfd;
|
||||
int fileflags;
|
||||
int nbytes;
|
||||
int max,
|
||||
i;
|
||||
@ -174,16 +132,15 @@ GetRawDatabaseInfo(char *name, Oid *db_id, char *path)
|
||||
char *dbfname;
|
||||
Form_pg_database tup_db;
|
||||
|
||||
dbfname = (char *) palloc(strlen(DataDir) + strlen("pg_database") + 2);
|
||||
sprintf(dbfname, "%s%cpg_database", DataDir, SEP_CHAR);
|
||||
fileflags = O_RDONLY;
|
||||
dbfname = (char *) palloc(strlen(DataDir) + strlen(DatabaseRelationName) + 2);
|
||||
sprintf(dbfname, "%s%c%s", DataDir, SEP_CHAR, DatabaseRelationName);
|
||||
|
||||
#ifndef __CYGWIN32__
|
||||
if ((dbfd = open(dbfname, O_RDONLY, 0)) < 0)
|
||||
#else
|
||||
if ((dbfd = open(dbfname, O_RDONLY | O_BINARY, 0)) < 0)
|
||||
#endif
|
||||
elog(FATAL, "Cannot open %s", dbfname);
|
||||
elog(FATAL, "cannot open %s: %s", dbfname, strerror(errno));
|
||||
|
||||
pfree(dbfname);
|
||||
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/Attic/palloc.c,v 1.15 1999/10/23 03:13:24 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/Attic/palloc.c,v 1.16 2000/01/13 18:26:14 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -29,7 +29,7 @@
|
||||
*/
|
||||
|
||||
char *
|
||||
pstrdup(char *string)
|
||||
pstrdup(const char *string)
|
||||
{
|
||||
char *nstr;
|
||||
int len;
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: c.h,v 1.62 1999/12/20 00:51:21 tgl Exp $
|
||||
* $Id: c.h,v 1.63 2000/01/13 18:26:15 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -767,7 +767,6 @@ extern char *vararg_format(const char *fmt,...);
|
||||
|
||||
/* These are for things that are one way on Unix and another on NT */
|
||||
#define NULL_DEV "/dev/null"
|
||||
#define COPY_CMD "cp"
|
||||
#define SEP_CHAR '/'
|
||||
|
||||
/* defines for dynamic linking on Win32 platform */
|
||||
|
@ -6,23 +6,14 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: dbcommands.h,v 1.11 1999/12/10 03:56:06 momjian Exp $
|
||||
* $Id: dbcommands.h,v 1.12 2000/01/13 18:26:16 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
#ifndef DBCOMMANDS_H
|
||||
#define DBCOMMANDS_H
|
||||
|
||||
#include <signal.h>
|
||||
#include "tcop/dest.h"
|
||||
|
||||
/*
|
||||
* Originally from tmp/daemon.h. The functions declared in daemon.h does not
|
||||
* exist; hence removed. -- AY 7/29/94
|
||||
*/
|
||||
#define SIGKILLDAEMON1 SIGTERM
|
||||
|
||||
extern void createdb(char *dbname, char *dbpath, int encoding, CommandDest);
|
||||
extern void dropdb(char *dbname, CommandDest);
|
||||
extern void createdb(const char *dbname, const char *dbpath, int encoding);
|
||||
extern void dropdb(const char *dbname);
|
||||
|
||||
#endif /* DBCOMMANDS_H */
|
||||
|
@ -11,7 +11,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: miscadmin.h,v 1.46 2000/01/09 12:19:27 ishii Exp $
|
||||
* $Id: miscadmin.h,v 1.47 2000/01/13 18:26:15 petere Exp $
|
||||
*
|
||||
* NOTES
|
||||
* some of the information in this file will be moved to
|
||||
@ -47,6 +47,8 @@ extern long MyCancelKey;
|
||||
|
||||
extern char OutputFileName[];
|
||||
|
||||
extern char *UserName;
|
||||
|
||||
/*
|
||||
* done in storage/backendid.h for now.
|
||||
*
|
||||
@ -110,13 +112,12 @@ extern char *DatabaseName;
|
||||
extern char *DatabasePath;
|
||||
|
||||
/* in utils/misc/database.c */
|
||||
extern void GetRawDatabaseInfo(char *name, Oid *db_id, char *path);
|
||||
extern int GetDatabaseInfo(char *name, int4 *owner, char *path);
|
||||
extern char *ExpandDatabasePath(char *path);
|
||||
extern void GetRawDatabaseInfo(const char *name, Oid *db_id, char *path);
|
||||
extern char *ExpandDatabasePath(const char *path);
|
||||
|
||||
/* now in utils/init/miscinit.c */
|
||||
extern void SetDatabaseName(char *name);
|
||||
extern void SetDatabasePath(char *path);
|
||||
extern void SetDatabaseName(const char *name);
|
||||
extern void SetDatabasePath(const char *path);
|
||||
|
||||
/* even if MB is not enabled, this function is neccesary
|
||||
* since pg_proc.h does have.
|
||||
@ -184,16 +185,27 @@ typedef int16 ExitStatus;
|
||||
|
||||
extern bool PostgresIsInitialized;
|
||||
|
||||
extern void InitPostgres(char *name);
|
||||
extern void InitPostgres(const char *dbname);
|
||||
|
||||
/* in miscinit.c */
|
||||
extern void ExitPostgres(ExitStatus status);
|
||||
/* one of the ways to get out of here */
|
||||
#define ExitPostgres(status) proc_exec(status)
|
||||
|
||||
/* processing mode support stuff */
|
||||
extern ProcessingMode Mode;
|
||||
|
||||
#define IsBootstrapProcessingMode() ((bool)(Mode == BootstrapProcessing))
|
||||
#define IsInitProcessingMode() ((bool)(Mode == InitProcessing))
|
||||
#define IsNormalProcessingMode() ((bool)(Mode == NormalProcessing))
|
||||
|
||||
#define SetProcessingMode(mode) \
|
||||
do { \
|
||||
AssertArg(mode == BootstrapProcessing || mode == InitProcessing || \
|
||||
mode == NormalProcessing); \
|
||||
Mode = mode; \
|
||||
} while(0)
|
||||
|
||||
#define GetProcessingMode() Mode
|
||||
|
||||
extern bool IsBootstrapProcessingMode(void);
|
||||
extern bool IsInitProcessingMode(void);
|
||||
extern bool IsNormalProcessingMode(void);
|
||||
extern void SetProcessingMode(ProcessingMode mode);
|
||||
extern ProcessingMode GetProcessingMode(void);
|
||||
|
||||
/*
|
||||
* "postmaster.pid" is a file containing postmaster's pid, being
|
||||
|
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: elog.h,v 1.13 1999/09/27 15:48:12 vadim Exp $
|
||||
* $Id: elog.h,v 1.14 2000/01/13 18:26:17 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -22,7 +22,13 @@
|
||||
#define LOG DEBUG
|
||||
#define NOIND (-3) /* debug message, don't indent as far */
|
||||
|
||||
#ifndef __GNUC__
|
||||
extern void elog(int lev, const char *fmt, ...);
|
||||
#else
|
||||
/* This extension allows gcc to check the format string for consistency with
|
||||
the supplied arguments. */
|
||||
extern void elog(int lev, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
|
||||
#endif
|
||||
|
||||
#ifndef PG_STANDALONE
|
||||
extern int DebugFileOpen(void);
|
||||
|
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: palloc.h,v 1.10 1999/07/14 01:20:30 momjian Exp $
|
||||
* $Id: palloc.h,v 1.11 2000/01/13 18:26:18 petere Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -32,6 +32,6 @@
|
||||
#endif /* PALLOC_IS_MALLOC */
|
||||
|
||||
/* like strdup except uses palloc */
|
||||
extern char *pstrdup(char *pointer);
|
||||
extern char *pstrdup(const char *pointer);
|
||||
|
||||
#endif /* PALLOC_H */
|
||||
|
Loading…
x
Reference in New Issue
Block a user