diff options
Diffstat (limited to 'kopete/plugins/statistics/sqlite/attach.c')
-rw-r--r-- | kopete/plugins/statistics/sqlite/attach.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/kopete/plugins/statistics/sqlite/attach.c b/kopete/plugins/statistics/sqlite/attach.c deleted file mode 100644 index 2f089986..00000000 --- a/kopete/plugins/statistics/sqlite/attach.c +++ /dev/null @@ -1,329 +0,0 @@ -/* -** 2003 April 6 -** -** The author disclaims copyright to this source code. In place of -** a legal notice, here is a blessing: -** -** May you do good and not evil. -** May you find forgiveness for yourself and forgive others. -** May you share freely, never taking more than you give. -** -************************************************************************* -** This file contains code used to implement the ATTACH and DETACH commands. -** -** $Id$ -*/ -#include "sqliteInt.h" - -/* -** This routine is called by the parser to process an ATTACH statement: -** -** ATTACH DATABASE filename AS dbname -** -** The pFilename and pDbname arguments are the tokens that define the -** filename and dbname in the ATTACH statement. -*/ -void sqlite3Attach( - Parse *pParse, /* The parser context */ - Token *pFilename, /* Name of database file */ - Token *pDbname, /* Name of the database to use internally */ - int keyType, /* 0: no key. 1: TEXT, 2: BLOB */ - Token *pKey /* Text of the key for keytype 1 and 2 */ -){ - Db *aNew; - int rc, i; - char *zFile, *zName; - sqlite3 *db; - Vdbe *v; - - v = sqlite3GetVdbe(pParse); - if( !v ) return; - sqlite3VdbeAddOp(v, OP_Halt, 0, 0); - if( pParse->explain ) return; - db = pParse->db; - if( db->nDb>=MAX_ATTACHED+2 ){ - sqlite3ErrorMsg(pParse, "too many attached databases - max %d", - MAX_ATTACHED); - pParse->rc = SQLITE_ERROR; - return; - } - - if( !db->autoCommit ){ - sqlite3ErrorMsg(pParse, "cannot ATTACH database within transaction"); - pParse->rc = SQLITE_ERROR; - return; - } - - zFile = sqlite3NameFromToken(pFilename);; - if( zFile==0 ) return; -#ifndef SQLITE_OMIT_AUTHORIZATION - if( sqlite3AuthCheck(pParse, SQLITE_ATTACH, zFile, 0, 0)!=SQLITE_OK ){ - sqliteFree(zFile); - return; - } -#endif /* SQLITE_OMIT_AUTHORIZATION */ - - zName = sqlite3NameFromToken(pDbname); - if( zName==0 ) return; - for(i=0; i<db->nDb; i++){ - char *z = db->aDb[i].zName; - if( z && sqlite3StrICmp(z, zName)==0 ){ - sqlite3ErrorMsg(pParse, "database %z is already in use", zName); - pParse->rc = SQLITE_ERROR; - sqliteFree(zFile); - return; - } - } - - if( db->aDb==db->aDbStatic ){ - aNew = sqliteMalloc( sizeof(db->aDb[0])*3 ); - if( aNew==0 ) return; - memcpy(aNew, db->aDb, sizeof(db->aDb[0])*2); - }else{ - aNew = sqliteRealloc(db->aDb, sizeof(db->aDb[0])*(db->nDb+1) ); - if( aNew==0 ) return; - } - db->aDb = aNew; - aNew = &db->aDb[db->nDb++]; - memset(aNew, 0, sizeof(*aNew)); - sqlite3HashInit(&aNew->tblHash, SQLITE_HASH_STRING, 0); - sqlite3HashInit(&aNew->idxHash, SQLITE_HASH_STRING, 0); - sqlite3HashInit(&aNew->trigHash, SQLITE_HASH_STRING, 0); - sqlite3HashInit(&aNew->aFKey, SQLITE_HASH_STRING, 1); - aNew->zName = zName; - aNew->safety_level = 3; - rc = sqlite3BtreeFactory(db, zFile, 0, MAX_PAGES, &aNew->pBt); - if( rc ){ - sqlite3ErrorMsg(pParse, "unable to open database: %s", zFile); - } -#if SQLITE_HAS_CODEC - { - extern int sqlite3CodecAttach(sqlite3*, int, void*, int); - char *zKey; - int nKey; - if( keyType==0 ){ - /* No key specified. Use the key from the main database */ - extern void sqlite3CodecGetKey(sqlite3*, int, void**, int*); - sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey); - }else if( keyType==1 ){ - /* Key specified as text */ - zKey = sqlite3NameFromToken(pKey); - nKey = strlen(zKey); - }else{ - /* Key specified as a BLOB */ - char *zTemp; - assert( keyType==2 ); - pKey->z++; - pKey->n--; - zTemp = sqlite3NameFromToken(pKey); - zKey = sqlite3HexToBlob(zTemp); - sqliteFree(zTemp); - } - sqlite3CodecAttach(db, db->nDb-1, zKey, nKey); - if( keyType ){ - sqliteFree(zKey); - } - } -#endif - sqliteFree(zFile); - db->flags &= ~SQLITE_Initialized; - if( pParse->nErr==0 && rc==SQLITE_OK ){ - rc = sqlite3ReadSchema(pParse); - } - if( rc ){ - int i = db->nDb - 1; - assert( i>=2 ); - if( db->aDb[i].pBt ){ - sqlite3BtreeClose(db->aDb[i].pBt); - db->aDb[i].pBt = 0; - } - sqlite3ResetInternalSchema(db, 0); - if( 0==pParse->nErr ){ - pParse->nErr++; - pParse->rc = SQLITE_ERROR; - } - } -} - -/* -** This routine is called by the parser to process a DETACH statement: -** -** DETACH DATABASE dbname -** -** The pDbname argument is the name of the database in the DETACH statement. -*/ -void sqlite3Detach(Parse *pParse, Token *pDbname){ - int i; - sqlite3 *db; - Vdbe *v; - Db *pDb = 0; - - v = sqlite3GetVdbe(pParse); - if( !v ) return; - sqlite3VdbeAddOp(v, OP_Halt, 0, 0); - if( pParse->explain ) return; - db = pParse->db; - for(i=0; i<db->nDb; i++){ - pDb = &db->aDb[i]; - if( pDb->pBt==0 || pDb->zName==0 ) continue; - if( strlen(pDb->zName)!=pDbname->n ) continue; - if( sqlite3StrNICmp(pDb->zName, pDbname->z, pDbname->n)==0 ) break; - } - if( i>=db->nDb ){ - sqlite3ErrorMsg(pParse, "no such database: %T", pDbname); - return; - } - if( i<2 ){ - sqlite3ErrorMsg(pParse, "cannot detach database %T", pDbname); - return; - } - if( !db->autoCommit ){ - sqlite3ErrorMsg(pParse, "cannot DETACH database within transaction"); - pParse->rc = SQLITE_ERROR; - return; - } -#ifndef SQLITE_OMIT_AUTHORIZATION - if( sqlite3AuthCheck(pParse,SQLITE_DETACH,db->aDb[i].zName,0,0)!=SQLITE_OK ){ - return; - } -#endif /* SQLITE_OMIT_AUTHORIZATION */ - sqlite3BtreeClose(pDb->pBt); - pDb->pBt = 0; - sqlite3ResetInternalSchema(db, 0); -} - -/* -** Initialize a DbFixer structure. This routine must be called prior -** to passing the structure to one of the sqliteFixAAAA() routines below. -** -** The return value indicates whether or not fixation is required. TRUE -** means we do need to fix the database references, FALSE means we do not. -*/ -int sqlite3FixInit( - DbFixer *pFix, /* The fixer to be initialized */ - Parse *pParse, /* Error messages will be written here */ - int iDb, /* This is the database that must be used */ - const char *zType, /* "view", "trigger", or "index" */ - const Token *pName /* Name of the view, trigger, or index */ -){ - sqlite3 *db; - - if( iDb<0 || iDb==1 ) return 0; - db = pParse->db; - assert( db->nDb>iDb ); - pFix->pParse = pParse; - pFix->zDb = db->aDb[iDb].zName; - pFix->zType = zType; - pFix->pName = pName; - return 1; -} - -/* -** The following set of routines walk through the parse tree and assign -** a specific database to all table references where the database name -** was left unspecified in the original SQL statement. The pFix structure -** must have been initialized by a prior call to sqlite3FixInit(). -** -** These routines are used to make sure that an index, trigger, or -** view in one database does not refer to objects in a different database. -** (Exception: indices, triggers, and views in the TEMP database are -** allowed to refer to anything.) If a reference is explicitly made -** to an object in a different database, an error message is added to -** pParse->zErrMsg and these routines return non-zero. If everything -** checks out, these routines return 0. -*/ -int sqlite3FixSrcList( - DbFixer *pFix, /* Context of the fixation */ - SrcList *pList /* The Source list to check and modify */ -){ - int i; - const char *zDb; - struct SrcList_item *pItem; - - if( pList==0 ) return 0; - zDb = pFix->zDb; - for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){ - if( pItem->zDatabase==0 ){ - pItem->zDatabase = sqliteStrDup(zDb); - }else if( sqlite3StrICmp(pItem->zDatabase,zDb)!=0 ){ - sqlite3ErrorMsg(pFix->pParse, - "%s %T cannot reference objects in database %s", - pFix->zType, pFix->pName, pItem->zDatabase); - return 1; - } - if( sqlite3FixSelect(pFix, pItem->pSelect) ) return 1; - if( sqlite3FixExpr(pFix, pItem->pOn) ) return 1; - } - return 0; -} -int sqlite3FixSelect( - DbFixer *pFix, /* Context of the fixation */ - Select *pSelect /* The SELECT statement to be fixed to one database */ -){ - while( pSelect ){ - if( sqlite3FixExprList(pFix, pSelect->pEList) ){ - return 1; - } - if( sqlite3FixSrcList(pFix, pSelect->pSrc) ){ - return 1; - } - if( sqlite3FixExpr(pFix, pSelect->pWhere) ){ - return 1; - } - if( sqlite3FixExpr(pFix, pSelect->pHaving) ){ - return 1; - } - pSelect = pSelect->pPrior; - } - return 0; -} -int sqlite3FixExpr( - DbFixer *pFix, /* Context of the fixation */ - Expr *pExpr /* The expression to be fixed to one database */ -){ - while( pExpr ){ - if( sqlite3FixSelect(pFix, pExpr->pSelect) ){ - return 1; - } - if( sqlite3FixExprList(pFix, pExpr->pList) ){ - return 1; - } - if( sqlite3FixExpr(pFix, pExpr->pRight) ){ - return 1; - } - pExpr = pExpr->pLeft; - } - return 0; -} -int sqlite3FixExprList( - DbFixer *pFix, /* Context of the fixation */ - ExprList *pList /* The expression to be fixed to one database */ -){ - int i; - struct ExprList_item *pItem; - if( pList==0 ) return 0; - for(i=0, pItem=pList->a; i<pList->nExpr; i++, pItem++){ - if( sqlite3FixExpr(pFix, pItem->pExpr) ){ - return 1; - } - } - return 0; -} -int sqlite3FixTriggerStep( - DbFixer *pFix, /* Context of the fixation */ - TriggerStep *pStep /* The trigger step be fixed to one database */ -){ - while( pStep ){ - if( sqlite3FixSelect(pFix, pStep->pSelect) ){ - return 1; - } - if( sqlite3FixExpr(pFix, pStep->pWhere) ){ - return 1; - } - if( sqlite3FixExprList(pFix, pStep->pExprList) ){ - return 1; - } - pStep = pStep->pNext; - } - return 0; -} |