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Diffstat (limited to 'lib/libsqlite3/src/tclsqlite.c')
| -rw-r--r-- | lib/libsqlite3/src/tclsqlite.c | 3897 |
1 files changed, 0 insertions, 3897 deletions
diff --git a/lib/libsqlite3/src/tclsqlite.c b/lib/libsqlite3/src/tclsqlite.c deleted file mode 100644 index f024317e909..00000000000 --- a/lib/libsqlite3/src/tclsqlite.c +++ /dev/null @@ -1,3897 +0,0 @@ -/* -** 2001 September 15 -** -** 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. -** -************************************************************************* -** A TCL Interface to SQLite. Append this file to sqlite3.c and -** compile the whole thing to build a TCL-enabled version of SQLite. -** -** Compile-time options: -** -** -DTCLSH=1 Add a "main()" routine that works as a tclsh. -** -** -DSQLITE_TCLMD5 When used in conjuction with -DTCLSH=1, add -** four new commands to the TCL interpreter for -** generating MD5 checksums: md5, md5file, -** md5-10x8, and md5file-10x8. -** -** -DSQLITE_TEST When used in conjuction with -DTCLSH=1, add -** hundreds of new commands used for testing -** SQLite. This option implies -DSQLITE_TCLMD5. -*/ - -/* -** If requested, include the SQLite compiler options file for MSVC. -*/ -#if defined(INCLUDE_MSVC_H) -#include "msvc.h" -#endif - -#include "tcl.h" -#include <errno.h> - -/* -** Some additional include files are needed if this file is not -** appended to the amalgamation. -*/ -#ifndef SQLITE_AMALGAMATION -# include "sqlite3.h" -# include <stdlib.h> -# include <string.h> -# include <assert.h> - typedef unsigned char u8; -#endif -#include <ctype.h> - -/* Used to get the current process ID */ -#if !defined(_WIN32) -# include <unistd.h> -# define GETPID getpid -#elif !defined(_WIN32_WCE) -# ifndef SQLITE_AMALGAMATION -# define WIN32_LEAN_AND_MEAN -# include <windows.h> -# endif -# define GETPID (int)GetCurrentProcessId -#endif - -/* - * Windows needs to know which symbols to export. Unix does not. - * BUILD_sqlite should be undefined for Unix. - */ -#ifdef BUILD_sqlite -#undef TCL_STORAGE_CLASS -#define TCL_STORAGE_CLASS DLLEXPORT -#endif /* BUILD_sqlite */ - -#define NUM_PREPARED_STMTS 10 -#define MAX_PREPARED_STMTS 100 - -/* Forward declaration */ -typedef struct SqliteDb SqliteDb; - -/* -** New SQL functions can be created as TCL scripts. Each such function -** is described by an instance of the following structure. -*/ -typedef struct SqlFunc SqlFunc; -struct SqlFunc { - Tcl_Interp *interp; /* The TCL interpret to execute the function */ - Tcl_Obj *pScript; /* The Tcl_Obj representation of the script */ - SqliteDb *pDb; /* Database connection that owns this function */ - int useEvalObjv; /* True if it is safe to use Tcl_EvalObjv */ - char *zName; /* Name of this function */ - SqlFunc *pNext; /* Next function on the list of them all */ -}; - -/* -** New collation sequences function can be created as TCL scripts. Each such -** function is described by an instance of the following structure. -*/ -typedef struct SqlCollate SqlCollate; -struct SqlCollate { - Tcl_Interp *interp; /* The TCL interpret to execute the function */ - char *zScript; /* The script to be run */ - SqlCollate *pNext; /* Next function on the list of them all */ -}; - -/* -** Prepared statements are cached for faster execution. Each prepared -** statement is described by an instance of the following structure. -*/ -typedef struct SqlPreparedStmt SqlPreparedStmt; -struct SqlPreparedStmt { - SqlPreparedStmt *pNext; /* Next in linked list */ - SqlPreparedStmt *pPrev; /* Previous on the list */ - sqlite3_stmt *pStmt; /* The prepared statement */ - int nSql; /* chars in zSql[] */ - const char *zSql; /* Text of the SQL statement */ - int nParm; /* Size of apParm array */ - Tcl_Obj **apParm; /* Array of referenced object pointers */ -}; - -typedef struct IncrblobChannel IncrblobChannel; - -/* -** There is one instance of this structure for each SQLite database -** that has been opened by the SQLite TCL interface. -** -** If this module is built with SQLITE_TEST defined (to create the SQLite -** testfixture executable), then it may be configured to use either -** sqlite3_prepare_v2() or sqlite3_prepare() to prepare SQL statements. -** If SqliteDb.bLegacyPrepare is true, sqlite3_prepare() is used. -*/ -struct SqliteDb { - sqlite3 *db; /* The "real" database structure. MUST BE FIRST */ - Tcl_Interp *interp; /* The interpreter used for this database */ - char *zBusy; /* The busy callback routine */ - char *zCommit; /* The commit hook callback routine */ - char *zTrace; /* The trace callback routine */ - char *zProfile; /* The profile callback routine */ - char *zProgress; /* The progress callback routine */ - char *zAuth; /* The authorization callback routine */ - int disableAuth; /* Disable the authorizer if it exists */ - char *zNull; /* Text to substitute for an SQL NULL value */ - SqlFunc *pFunc; /* List of SQL functions */ - Tcl_Obj *pUpdateHook; /* Update hook script (if any) */ - Tcl_Obj *pRollbackHook; /* Rollback hook script (if any) */ - Tcl_Obj *pWalHook; /* WAL hook script (if any) */ - Tcl_Obj *pUnlockNotify; /* Unlock notify script (if any) */ - SqlCollate *pCollate; /* List of SQL collation functions */ - int rc; /* Return code of most recent sqlite3_exec() */ - Tcl_Obj *pCollateNeeded; /* Collation needed script */ - SqlPreparedStmt *stmtList; /* List of prepared statements*/ - SqlPreparedStmt *stmtLast; /* Last statement in the list */ - int maxStmt; /* The next maximum number of stmtList */ - int nStmt; /* Number of statements in stmtList */ - IncrblobChannel *pIncrblob;/* Linked list of open incrblob channels */ - int nStep, nSort, nIndex; /* Statistics for most recent operation */ - int nTransaction; /* Number of nested [transaction] methods */ -#ifdef SQLITE_TEST - int bLegacyPrepare; /* True to use sqlite3_prepare() */ -#endif -}; - -struct IncrblobChannel { - sqlite3_blob *pBlob; /* sqlite3 blob handle */ - SqliteDb *pDb; /* Associated database connection */ - int iSeek; /* Current seek offset */ - Tcl_Channel channel; /* Channel identifier */ - IncrblobChannel *pNext; /* Linked list of all open incrblob channels */ - IncrblobChannel *pPrev; /* Linked list of all open incrblob channels */ -}; - -/* -** Compute a string length that is limited to what can be stored in -** lower 30 bits of a 32-bit signed integer. -*/ -static int strlen30(const char *z){ - const char *z2 = z; - while( *z2 ){ z2++; } - return 0x3fffffff & (int)(z2 - z); -} - - -#ifndef SQLITE_OMIT_INCRBLOB -/* -** Close all incrblob channels opened using database connection pDb. -** This is called when shutting down the database connection. -*/ -static void closeIncrblobChannels(SqliteDb *pDb){ - IncrblobChannel *p; - IncrblobChannel *pNext; - - for(p=pDb->pIncrblob; p; p=pNext){ - pNext = p->pNext; - - /* Note: Calling unregister here call Tcl_Close on the incrblob channel, - ** which deletes the IncrblobChannel structure at *p. So do not - ** call Tcl_Free() here. - */ - Tcl_UnregisterChannel(pDb->interp, p->channel); - } -} - -/* -** Close an incremental blob channel. -*/ -static int incrblobClose(ClientData instanceData, Tcl_Interp *interp){ - IncrblobChannel *p = (IncrblobChannel *)instanceData; - int rc = sqlite3_blob_close(p->pBlob); - sqlite3 *db = p->pDb->db; - - /* Remove the channel from the SqliteDb.pIncrblob list. */ - if( p->pNext ){ - p->pNext->pPrev = p->pPrev; - } - if( p->pPrev ){ - p->pPrev->pNext = p->pNext; - } - if( p->pDb->pIncrblob==p ){ - p->pDb->pIncrblob = p->pNext; - } - - /* Free the IncrblobChannel structure */ - Tcl_Free((char *)p); - - if( rc!=SQLITE_OK ){ - Tcl_SetResult(interp, (char *)sqlite3_errmsg(db), TCL_VOLATILE); - return TCL_ERROR; - } - return TCL_OK; -} - -/* -** Read data from an incremental blob channel. -*/ -static int incrblobInput( - ClientData instanceData, - char *buf, - int bufSize, - int *errorCodePtr -){ - IncrblobChannel *p = (IncrblobChannel *)instanceData; - int nRead = bufSize; /* Number of bytes to read */ - int nBlob; /* Total size of the blob */ - int rc; /* sqlite error code */ - - nBlob = sqlite3_blob_bytes(p->pBlob); - if( (p->iSeek+nRead)>nBlob ){ - nRead = nBlob-p->iSeek; - } - if( nRead<=0 ){ - return 0; - } - - rc = sqlite3_blob_read(p->pBlob, (void *)buf, nRead, p->iSeek); - if( rc!=SQLITE_OK ){ - *errorCodePtr = rc; - return -1; - } - - p->iSeek += nRead; - return nRead; -} - -/* -** Write data to an incremental blob channel. -*/ -static int incrblobOutput( - ClientData instanceData, - CONST char *buf, - int toWrite, - int *errorCodePtr -){ - IncrblobChannel *p = (IncrblobChannel *)instanceData; - int nWrite = toWrite; /* Number of bytes to write */ - int nBlob; /* Total size of the blob */ - int rc; /* sqlite error code */ - - nBlob = sqlite3_blob_bytes(p->pBlob); - if( (p->iSeek+nWrite)>nBlob ){ - *errorCodePtr = EINVAL; - return -1; - } - if( nWrite<=0 ){ - return 0; - } - - rc = sqlite3_blob_write(p->pBlob, (void *)buf, nWrite, p->iSeek); - if( rc!=SQLITE_OK ){ - *errorCodePtr = EIO; - return -1; - } - - p->iSeek += nWrite; - return nWrite; -} - -/* -** Seek an incremental blob channel. -*/ -static int incrblobSeek( - ClientData instanceData, - long offset, - int seekMode, - int *errorCodePtr -){ - IncrblobChannel *p = (IncrblobChannel *)instanceData; - - switch( seekMode ){ - case SEEK_SET: - p->iSeek = offset; - break; - case SEEK_CUR: - p->iSeek += offset; - break; - case SEEK_END: - p->iSeek = sqlite3_blob_bytes(p->pBlob) + offset; - break; - - default: assert(!"Bad seekMode"); - } - - return p->iSeek; -} - - -static void incrblobWatch(ClientData instanceData, int mode){ - /* NO-OP */ -} -static int incrblobHandle(ClientData instanceData, int dir, ClientData *hPtr){ - return TCL_ERROR; -} - -static Tcl_ChannelType IncrblobChannelType = { - "incrblob", /* typeName */ - TCL_CHANNEL_VERSION_2, /* version */ - incrblobClose, /* closeProc */ - incrblobInput, /* inputProc */ - incrblobOutput, /* outputProc */ - incrblobSeek, /* seekProc */ - 0, /* setOptionProc */ - 0, /* getOptionProc */ - incrblobWatch, /* watchProc (this is a no-op) */ - incrblobHandle, /* getHandleProc (always returns error) */ - 0, /* close2Proc */ - 0, /* blockModeProc */ - 0, /* flushProc */ - 0, /* handlerProc */ - 0, /* wideSeekProc */ -}; - -/* -** Create a new incrblob channel. -*/ -static int createIncrblobChannel( - Tcl_Interp *interp, - SqliteDb *pDb, - const char *zDb, - const char *zTable, - const char *zColumn, - sqlite_int64 iRow, - int isReadonly -){ - IncrblobChannel *p; - sqlite3 *db = pDb->db; - sqlite3_blob *pBlob; - int rc; - int flags = TCL_READABLE|(isReadonly ? 0 : TCL_WRITABLE); - - /* This variable is used to name the channels: "incrblob_[incr count]" */ - static int count = 0; - char zChannel[64]; - - rc = sqlite3_blob_open(db, zDb, zTable, zColumn, iRow, !isReadonly, &pBlob); - if( rc!=SQLITE_OK ){ - Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE); - return TCL_ERROR; - } - - p = (IncrblobChannel *)Tcl_Alloc(sizeof(IncrblobChannel)); - p->iSeek = 0; - p->pBlob = pBlob; - - sqlite3_snprintf(sizeof(zChannel), zChannel, "incrblob_%d", ++count); - p->channel = Tcl_CreateChannel(&IncrblobChannelType, zChannel, p, flags); - Tcl_RegisterChannel(interp, p->channel); - - /* Link the new channel into the SqliteDb.pIncrblob list. */ - p->pNext = pDb->pIncrblob; - p->pPrev = 0; - if( p->pNext ){ - p->pNext->pPrev = p; - } - pDb->pIncrblob = p; - p->pDb = pDb; - - Tcl_SetResult(interp, (char *)Tcl_GetChannelName(p->channel), TCL_VOLATILE); - return TCL_OK; -} -#else /* else clause for "#ifndef SQLITE_OMIT_INCRBLOB" */ - #define closeIncrblobChannels(pDb) -#endif - -/* -** Look at the script prefix in pCmd. We will be executing this script -** after first appending one or more arguments. This routine analyzes -** the script to see if it is safe to use Tcl_EvalObjv() on the script -** rather than the more general Tcl_EvalEx(). Tcl_EvalObjv() is much -** faster. -** -** Scripts that are safe to use with Tcl_EvalObjv() consists of a -** command name followed by zero or more arguments with no [...] or $ -** or {...} or ; to be seen anywhere. Most callback scripts consist -** of just a single procedure name and they meet this requirement. -*/ -static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){ - /* We could try to do something with Tcl_Parse(). But we will instead - ** just do a search for forbidden characters. If any of the forbidden - ** characters appear in pCmd, we will report the string as unsafe. - */ - const char *z; - int n; - z = Tcl_GetStringFromObj(pCmd, &n); - while( n-- > 0 ){ - int c = *(z++); - if( c=='$' || c=='[' || c==';' ) return 0; - } - return 1; -} - -/* -** Find an SqlFunc structure with the given name. Or create a new -** one if an existing one cannot be found. Return a pointer to the -** structure. -*/ -static SqlFunc *findSqlFunc(SqliteDb *pDb, const char *zName){ - SqlFunc *p, *pNew; - int nName = strlen30(zName); - pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + nName + 1 ); - pNew->zName = (char*)&pNew[1]; - memcpy(pNew->zName, zName, nName+1); - for(p=pDb->pFunc; p; p=p->pNext){ - if( sqlite3_stricmp(p->zName, pNew->zName)==0 ){ - Tcl_Free((char*)pNew); - return p; - } - } - pNew->interp = pDb->interp; - pNew->pDb = pDb; - pNew->pScript = 0; - pNew->pNext = pDb->pFunc; - pDb->pFunc = pNew; - return pNew; -} - -/* -** Free a single SqlPreparedStmt object. -*/ -static void dbFreeStmt(SqlPreparedStmt *pStmt){ -#ifdef SQLITE_TEST - if( sqlite3_sql(pStmt->pStmt)==0 ){ - Tcl_Free((char *)pStmt->zSql); - } -#endif - sqlite3_finalize(pStmt->pStmt); - Tcl_Free((char *)pStmt); -} - -/* -** Finalize and free a list of prepared statements -*/ -static void flushStmtCache(SqliteDb *pDb){ - SqlPreparedStmt *pPreStmt; - SqlPreparedStmt *pNext; - - for(pPreStmt = pDb->stmtList; pPreStmt; pPreStmt=pNext){ - pNext = pPreStmt->pNext; - dbFreeStmt(pPreStmt); - } - pDb->nStmt = 0; - pDb->stmtLast = 0; - pDb->stmtList = 0; -} - -/* -** TCL calls this procedure when an sqlite3 database command is -** deleted. -*/ -static void DbDeleteCmd(void *db){ - SqliteDb *pDb = (SqliteDb*)db; - flushStmtCache(pDb); - closeIncrblobChannels(pDb); - sqlite3_close(pDb->db); - while( pDb->pFunc ){ - SqlFunc *pFunc = pDb->pFunc; - pDb->pFunc = pFunc->pNext; - assert( pFunc->pDb==pDb ); - Tcl_DecrRefCount(pFunc->pScript); - Tcl_Free((char*)pFunc); - } - while( pDb->pCollate ){ - SqlCollate *pCollate = pDb->pCollate; - pDb->pCollate = pCollate->pNext; - Tcl_Free((char*)pCollate); - } - if( pDb->zBusy ){ - Tcl_Free(pDb->zBusy); - } - if( pDb->zTrace ){ - Tcl_Free(pDb->zTrace); - } - if( pDb->zProfile ){ - Tcl_Free(pDb->zProfile); - } - if( pDb->zAuth ){ - Tcl_Free(pDb->zAuth); - } - if( pDb->zNull ){ - Tcl_Free(pDb->zNull); - } - if( pDb->pUpdateHook ){ - Tcl_DecrRefCount(pDb->pUpdateHook); - } - if( pDb->pRollbackHook ){ - Tcl_DecrRefCount(pDb->pRollbackHook); - } - if( pDb->pWalHook ){ - Tcl_DecrRefCount(pDb->pWalHook); - } - if( pDb->pCollateNeeded ){ - Tcl_DecrRefCount(pDb->pCollateNeeded); - } - Tcl_Free((char*)pDb); -} - -/* -** This routine is called when a database file is locked while trying -** to execute SQL. -*/ -static int DbBusyHandler(void *cd, int nTries){ - SqliteDb *pDb = (SqliteDb*)cd; - int rc; - char zVal[30]; - - sqlite3_snprintf(sizeof(zVal), zVal, "%d", nTries); - rc = Tcl_VarEval(pDb->interp, pDb->zBusy, " ", zVal, (char*)0); - if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){ - return 0; - } - return 1; -} - -#ifndef SQLITE_OMIT_PROGRESS_CALLBACK -/* -** This routine is invoked as the 'progress callback' for the database. -*/ -static int DbProgressHandler(void *cd){ - SqliteDb *pDb = (SqliteDb*)cd; - int rc; - - assert( pDb->zProgress ); - rc = Tcl_Eval(pDb->interp, pDb->zProgress); - if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){ - return 1; - } - return 0; -} -#endif - -#ifndef SQLITE_OMIT_TRACE -/* -** This routine is called by the SQLite trace handler whenever a new -** block of SQL is executed. The TCL script in pDb->zTrace is executed. -*/ -static void DbTraceHandler(void *cd, const char *zSql){ - SqliteDb *pDb = (SqliteDb*)cd; - Tcl_DString str; - - Tcl_DStringInit(&str); - Tcl_DStringAppend(&str, pDb->zTrace, -1); - Tcl_DStringAppendElement(&str, zSql); - Tcl_Eval(pDb->interp, Tcl_DStringValue(&str)); - Tcl_DStringFree(&str); - Tcl_ResetResult(pDb->interp); -} -#endif - -#ifndef SQLITE_OMIT_TRACE -/* -** This routine is called by the SQLite profile handler after a statement -** SQL has executed. The TCL script in pDb->zProfile is evaluated. -*/ -static void DbProfileHandler(void *cd, const char *zSql, sqlite_uint64 tm){ - SqliteDb *pDb = (SqliteDb*)cd; - Tcl_DString str; - char zTm[100]; - - sqlite3_snprintf(sizeof(zTm)-1, zTm, "%lld", tm); - Tcl_DStringInit(&str); - Tcl_DStringAppend(&str, pDb->zProfile, -1); - Tcl_DStringAppendElement(&str, zSql); - Tcl_DStringAppendElement(&str, zTm); - Tcl_Eval(pDb->interp, Tcl_DStringValue(&str)); - Tcl_DStringFree(&str); - Tcl_ResetResult(pDb->interp); -} -#endif - -/* -** This routine is called when a transaction is committed. The -** TCL script in pDb->zCommit is executed. If it returns non-zero or -** if it throws an exception, the transaction is rolled back instead -** of being committed. -*/ -static int DbCommitHandler(void *cd){ - SqliteDb *pDb = (SqliteDb*)cd; - int rc; - - rc = Tcl_Eval(pDb->interp, pDb->zCommit); - if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){ - return 1; - } - return 0; -} - -static void DbRollbackHandler(void *clientData){ - SqliteDb *pDb = (SqliteDb*)clientData; - assert(pDb->pRollbackHook); - if( TCL_OK!=Tcl_EvalObjEx(pDb->interp, pDb->pRollbackHook, 0) ){ - Tcl_BackgroundError(pDb->interp); - } -} - -/* -** This procedure handles wal_hook callbacks. -*/ -static int DbWalHandler( - void *clientData, - sqlite3 *db, - const char *zDb, - int nEntry -){ - int ret = SQLITE_OK; - Tcl_Obj *p; - SqliteDb *pDb = (SqliteDb*)clientData; - Tcl_Interp *interp = pDb->interp; - assert(pDb->pWalHook); - - assert( db==pDb->db ); - p = Tcl_DuplicateObj(pDb->pWalHook); - Tcl_IncrRefCount(p); - Tcl_ListObjAppendElement(interp, p, Tcl_NewStringObj(zDb, -1)); - Tcl_ListObjAppendElement(interp, p, Tcl_NewIntObj(nEntry)); - if( TCL_OK!=Tcl_EvalObjEx(interp, p, 0) - || TCL_OK!=Tcl_GetIntFromObj(interp, Tcl_GetObjResult(interp), &ret) - ){ - Tcl_BackgroundError(interp); - } - Tcl_DecrRefCount(p); - - return ret; -} - -#if defined(SQLITE_TEST) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY) -static void setTestUnlockNotifyVars(Tcl_Interp *interp, int iArg, int nArg){ - char zBuf[64]; - sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", iArg); - Tcl_SetVar(interp, "sqlite_unlock_notify_arg", zBuf, TCL_GLOBAL_ONLY); - sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", nArg); - Tcl_SetVar(interp, "sqlite_unlock_notify_argcount", zBuf, TCL_GLOBAL_ONLY); -} -#else -# define setTestUnlockNotifyVars(x,y,z) -#endif - -#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY -static void DbUnlockNotify(void **apArg, int nArg){ - int i; - for(i=0; i<nArg; i++){ - const int flags = (TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT); - SqliteDb *pDb = (SqliteDb *)apArg[i]; - setTestUnlockNotifyVars(pDb->interp, i, nArg); - assert( pDb->pUnlockNotify); - Tcl_EvalObjEx(pDb->interp, pDb->pUnlockNotify, flags); - Tcl_DecrRefCount(pDb->pUnlockNotify); - pDb->pUnlockNotify = 0; - } -} -#endif - -static void DbUpdateHandler( - void *p, - int op, - const char *zDb, - const char *zTbl, - sqlite_int64 rowid -){ - SqliteDb *pDb = (SqliteDb *)p; - Tcl_Obj *pCmd; - - assert( pDb->pUpdateHook ); - assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE ); - - pCmd = Tcl_DuplicateObj(pDb->pUpdateHook); - Tcl_IncrRefCount(pCmd); - Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj( - ( (op==SQLITE_INSERT)?"INSERT":(op==SQLITE_UPDATE)?"UPDATE":"DELETE"), -1)); - Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zDb, -1)); - Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zTbl, -1)); - Tcl_ListObjAppendElement(0, pCmd, Tcl_NewWideIntObj(rowid)); - Tcl_EvalObjEx(pDb->interp, pCmd, TCL_EVAL_DIRECT); - Tcl_DecrRefCount(pCmd); -} - -static void tclCollateNeeded( - void *pCtx, - sqlite3 *db, - int enc, - const char *zName -){ - SqliteDb *pDb = (SqliteDb *)pCtx; - Tcl_Obj *pScript = Tcl_DuplicateObj(pDb->pCollateNeeded); - Tcl_IncrRefCount(pScript); - Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj(zName, -1)); - Tcl_EvalObjEx(pDb->interp, pScript, 0); - Tcl_DecrRefCount(pScript); -} - -/* -** This routine is called to evaluate an SQL collation function implemented -** using TCL script. -*/ -static int tclSqlCollate( - void *pCtx, - int nA, - const void *zA, - int nB, - const void *zB -){ - SqlCollate *p = (SqlCollate *)pCtx; - Tcl_Obj *pCmd; - - pCmd = Tcl_NewStringObj(p->zScript, -1); - Tcl_IncrRefCount(pCmd); - Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zA, nA)); - Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zB, nB)); - Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT); - Tcl_DecrRefCount(pCmd); - return (atoi(Tcl_GetStringResult(p->interp))); -} - -/* -** This routine is called to evaluate an SQL function implemented -** using TCL script. -*/ -static void tclSqlFunc(sqlite3_context *context, int argc, sqlite3_value**argv){ - SqlFunc *p = sqlite3_user_data(context); - Tcl_Obj *pCmd; - int i; - int rc; - - if( argc==0 ){ - /* If there are no arguments to the function, call Tcl_EvalObjEx on the - ** script object directly. This allows the TCL compiler to generate - ** bytecode for the command on the first invocation and thus make - ** subsequent invocations much faster. */ - pCmd = p->pScript; - Tcl_IncrRefCount(pCmd); - rc = Tcl_EvalObjEx(p->interp, pCmd, 0); - Tcl_DecrRefCount(pCmd); - }else{ - /* If there are arguments to the function, make a shallow copy of the - ** script object, lappend the arguments, then evaluate the copy. - ** - ** By "shallow" copy, we mean only the outer list Tcl_Obj is duplicated. - ** The new Tcl_Obj contains pointers to the original list elements. - ** That way, when Tcl_EvalObjv() is run and shimmers the first element - ** of the list to tclCmdNameType, that alternate representation will - ** be preserved and reused on the next invocation. - */ - Tcl_Obj **aArg; - int nArg; - if( Tcl_ListObjGetElements(p->interp, p->pScript, &nArg, &aArg) ){ - sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1); - return; - } - pCmd = Tcl_NewListObj(nArg, aArg); - Tcl_IncrRefCount(pCmd); - for(i=0; i<argc; i++){ - sqlite3_value *pIn = argv[i]; - Tcl_Obj *pVal; - - /* Set pVal to contain the i'th column of this row. */ - switch( sqlite3_value_type(pIn) ){ - case SQLITE_BLOB: { - int bytes = sqlite3_value_bytes(pIn); - pVal = Tcl_NewByteArrayObj(sqlite3_value_blob(pIn), bytes); - break; - } - case SQLITE_INTEGER: { - sqlite_int64 v = sqlite3_value_int64(pIn); - if( v>=-2147483647 && v<=2147483647 ){ - pVal = Tcl_NewIntObj((int)v); - }else{ - pVal = Tcl_NewWideIntObj(v); - } - break; - } - case SQLITE_FLOAT: { - double r = sqlite3_value_double(pIn); - pVal = Tcl_NewDoubleObj(r); - break; - } - case SQLITE_NULL: { - pVal = Tcl_NewStringObj(p->pDb->zNull, -1); - break; - } - default: { - int bytes = sqlite3_value_bytes(pIn); - pVal = Tcl_NewStringObj((char *)sqlite3_value_text(pIn), bytes); - break; - } - } - rc = Tcl_ListObjAppendElement(p->interp, pCmd, pVal); - if( rc ){ - Tcl_DecrRefCount(pCmd); - sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1); - return; - } - } - if( !p->useEvalObjv ){ - /* Tcl_EvalObjEx() will automatically call Tcl_EvalObjv() if pCmd - ** is a list without a string representation. To prevent this from - ** happening, make sure pCmd has a valid string representation */ - Tcl_GetString(pCmd); - } - rc = Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT); - Tcl_DecrRefCount(pCmd); - } - - if( rc && rc!=TCL_RETURN ){ - sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1); - }else{ - Tcl_Obj *pVar = Tcl_GetObjResult(p->interp); - int n; - u8 *data; - const char *zType = (pVar->typePtr ? pVar->typePtr->name : ""); - char c = zType[0]; - if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){ - /* Only return a BLOB type if the Tcl variable is a bytearray and - ** has no string representation. */ - data = Tcl_GetByteArrayFromObj(pVar, &n); - sqlite3_result_blob(context, data, n, SQLITE_TRANSIENT); - }else if( c=='b' && strcmp(zType,"boolean")==0 ){ - Tcl_GetIntFromObj(0, pVar, &n); - sqlite3_result_int(context, n); - }else if( c=='d' && strcmp(zType,"double")==0 ){ - double r; - Tcl_GetDoubleFromObj(0, pVar, &r); - sqlite3_result_double(context, r); - }else if( (c=='w' && strcmp(zType,"wideInt")==0) || - (c=='i' && strcmp(zType,"int")==0) ){ - Tcl_WideInt v; - Tcl_GetWideIntFromObj(0, pVar, &v); - sqlite3_result_int64(context, v); - }else{ - data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n); - sqlite3_result_text(context, (char *)data, n, SQLITE_TRANSIENT); - } - } -} - -#ifndef SQLITE_OMIT_AUTHORIZATION -/* -** This is the authentication function. It appends the authentication -** type code and the two arguments to zCmd[] then invokes the result -** on the interpreter. The reply is examined to determine if the -** authentication fails or succeeds. -*/ -static int auth_callback( - void *pArg, - int code, - const char *zArg1, - const char *zArg2, - const char *zArg3, - const char *zArg4 -#ifdef SQLITE_USER_AUTHENTICATION - ,const char *zArg5 -#endif -){ - const char *zCode; - Tcl_DString str; - int rc; - const char *zReply; - SqliteDb *pDb = (SqliteDb*)pArg; - if( pDb->disableAuth ) return SQLITE_OK; - - switch( code ){ - case SQLITE_COPY : zCode="SQLITE_COPY"; break; - case SQLITE_CREATE_INDEX : zCode="SQLITE_CREATE_INDEX"; break; - case SQLITE_CREATE_TABLE : zCode="SQLITE_CREATE_TABLE"; break; - case SQLITE_CREATE_TEMP_INDEX : zCode="SQLITE_CREATE_TEMP_INDEX"; break; - case SQLITE_CREATE_TEMP_TABLE : zCode="SQLITE_CREATE_TEMP_TABLE"; break; - case SQLITE_CREATE_TEMP_TRIGGER: zCode="SQLITE_CREATE_TEMP_TRIGGER"; break; - case SQLITE_CREATE_TEMP_VIEW : zCode="SQLITE_CREATE_TEMP_VIEW"; break; - case SQLITE_CREATE_TRIGGER : zCode="SQLITE_CREATE_TRIGGER"; break; - case SQLITE_CREATE_VIEW : zCode="SQLITE_CREATE_VIEW"; break; - case SQLITE_DELETE : zCode="SQLITE_DELETE"; break; - case SQLITE_DROP_INDEX : zCode="SQLITE_DROP_INDEX"; break; - case SQLITE_DROP_TABLE : zCode="SQLITE_DROP_TABLE"; break; - case SQLITE_DROP_TEMP_INDEX : zCode="SQLITE_DROP_TEMP_INDEX"; break; - case SQLITE_DROP_TEMP_TABLE : zCode="SQLITE_DROP_TEMP_TABLE"; break; - case SQLITE_DROP_TEMP_TRIGGER : zCode="SQLITE_DROP_TEMP_TRIGGER"; break; - case SQLITE_DROP_TEMP_VIEW : zCode="SQLITE_DROP_TEMP_VIEW"; break; - case SQLITE_DROP_TRIGGER : zCode="SQLITE_DROP_TRIGGER"; break; - case SQLITE_DROP_VIEW : zCode="SQLITE_DROP_VIEW"; break; - case SQLITE_INSERT : zCode="SQLITE_INSERT"; break; - case SQLITE_PRAGMA : zCode="SQLITE_PRAGMA"; break; - case SQLITE_READ : zCode="SQLITE_READ"; break; - case SQLITE_SELECT : zCode="SQLITE_SELECT"; break; - case SQLITE_TRANSACTION : zCode="SQLITE_TRANSACTION"; break; - case SQLITE_UPDATE : zCode="SQLITE_UPDATE"; break; - case SQLITE_ATTACH : zCode="SQLITE_ATTACH"; break; - case SQLITE_DETACH : zCode="SQLITE_DETACH"; break; - case SQLITE_ALTER_TABLE : zCode="SQLITE_ALTER_TABLE"; break; - case SQLITE_REINDEX : zCode="SQLITE_REINDEX"; break; - case SQLITE_ANALYZE : zCode="SQLITE_ANALYZE"; break; - case SQLITE_CREATE_VTABLE : zCode="SQLITE_CREATE_VTABLE"; break; - case SQLITE_DROP_VTABLE : zCode="SQLITE_DROP_VTABLE"; break; - case SQLITE_FUNCTION : zCode="SQLITE_FUNCTION"; break; - case SQLITE_SAVEPOINT : zCode="SQLITE_SAVEPOINT"; break; - case SQLITE_RECURSIVE : zCode="SQLITE_RECURSIVE"; break; - default : zCode="????"; break; - } - Tcl_DStringInit(&str); - Tcl_DStringAppend(&str, pDb->zAuth, -1); - Tcl_DStringAppendElement(&str, zCode); - Tcl_DStringAppendElement(&str, zArg1 ? zArg1 : ""); - Tcl_DStringAppendElement(&str, zArg2 ? zArg2 : ""); - Tcl_DStringAppendElement(&str, zArg3 ? zArg3 : ""); - Tcl_DStringAppendElement(&str, zArg4 ? zArg4 : ""); -#ifdef SQLITE_USER_AUTHENTICATION - Tcl_DStringAppendElement(&str, zArg5 ? zArg5 : ""); -#endif - rc = Tcl_GlobalEval(pDb->interp, Tcl_DStringValue(&str)); - Tcl_DStringFree(&str); - zReply = rc==TCL_OK ? Tcl_GetStringResult(pDb->interp) : "SQLITE_DENY"; - if( strcmp(zReply,"SQLITE_OK")==0 ){ - rc = SQLITE_OK; - }else if( strcmp(zReply,"SQLITE_DENY")==0 ){ - rc = SQLITE_DENY; - }else if( strcmp(zReply,"SQLITE_IGNORE")==0 ){ - rc = SQLITE_IGNORE; - }else{ - rc = 999; - } - return rc; -} -#endif /* SQLITE_OMIT_AUTHORIZATION */ - -/* -** This routine reads a line of text from FILE in, stores -** the text in memory obtained from malloc() and returns a pointer -** to the text. NULL is returned at end of file, or if malloc() -** fails. -** -** The interface is like "readline" but no command-line editing -** is done. -** -** copied from shell.c from '.import' command -*/ -static char *local_getline(char *zPrompt, FILE *in){ - char *zLine; - int nLine; - int n; - - nLine = 100; - zLine = malloc( nLine ); - if( zLine==0 ) return 0; - n = 0; - while( 1 ){ - if( n+100>nLine ){ - nLine = nLine*2 + 100; - zLine = realloc(zLine, nLine); - if( zLine==0 ) return 0; - } - if( fgets(&zLine[n], nLine - n, in)==0 ){ - if( n==0 ){ - free(zLine); - return 0; - } - zLine[n] = 0; - break; - } - while( zLine[n] ){ n++; } - if( n>0 && zLine[n-1]=='\n' ){ - n--; - zLine[n] = 0; - break; - } - } - zLine = realloc( zLine, n+1 ); - return zLine; -} - - -/* -** This function is part of the implementation of the command: -** -** $db transaction [-deferred|-immediate|-exclusive] SCRIPT -** -** It is invoked after evaluating the script SCRIPT to commit or rollback -** the transaction or savepoint opened by the [transaction] command. -*/ -static int DbTransPostCmd( - ClientData data[], /* data[0] is the Sqlite3Db* for $db */ - Tcl_Interp *interp, /* Tcl interpreter */ - int result /* Result of evaluating SCRIPT */ -){ - static const char *const azEnd[] = { - "RELEASE _tcl_transaction", /* rc==TCL_ERROR, nTransaction!=0 */ - "COMMIT", /* rc!=TCL_ERROR, nTransaction==0 */ - "ROLLBACK TO _tcl_transaction ; RELEASE _tcl_transaction", - "ROLLBACK" /* rc==TCL_ERROR, nTransaction==0 */ - }; - SqliteDb *pDb = (SqliteDb*)data[0]; - int rc = result; - const char *zEnd; - - pDb->nTransaction--; - zEnd = azEnd[(rc==TCL_ERROR)*2 + (pDb->nTransaction==0)]; - - pDb->disableAuth++; - if( sqlite3_exec(pDb->db, zEnd, 0, 0, 0) ){ - /* This is a tricky scenario to handle. The most likely cause of an - ** error is that the exec() above was an attempt to commit the - ** top-level transaction that returned SQLITE_BUSY. Or, less likely, - ** that an IO-error has occurred. In either case, throw a Tcl exception - ** and try to rollback the transaction. - ** - ** But it could also be that the user executed one or more BEGIN, - ** COMMIT, SAVEPOINT, RELEASE or ROLLBACK commands that are confusing - ** this method's logic. Not clear how this would be best handled. - */ - if( rc!=TCL_ERROR ){ - Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), (char*)0); - rc = TCL_ERROR; - } - sqlite3_exec(pDb->db, "ROLLBACK", 0, 0, 0); - } - pDb->disableAuth--; - - return rc; -} - -/* -** Unless SQLITE_TEST is defined, this function is a simple wrapper around -** sqlite3_prepare_v2(). If SQLITE_TEST is defined, then it uses either -** sqlite3_prepare_v2() or legacy interface sqlite3_prepare(), depending -** on whether or not the [db_use_legacy_prepare] command has been used to -** configure the connection. -*/ -static int dbPrepare( - SqliteDb *pDb, /* Database object */ - const char *zSql, /* SQL to compile */ - sqlite3_stmt **ppStmt, /* OUT: Prepared statement */ - const char **pzOut /* OUT: Pointer to next SQL statement */ -){ -#ifdef SQLITE_TEST - if( pDb->bLegacyPrepare ){ - return sqlite3_prepare(pDb->db, zSql, -1, ppStmt, pzOut); - } -#endif - return sqlite3_prepare_v2(pDb->db, zSql, -1, ppStmt, pzOut); -} - -/* -** Search the cache for a prepared-statement object that implements the -** first SQL statement in the buffer pointed to by parameter zIn. If -** no such prepared-statement can be found, allocate and prepare a new -** one. In either case, bind the current values of the relevant Tcl -** variables to any $var, :var or @var variables in the statement. Before -** returning, set *ppPreStmt to point to the prepared-statement object. -** -** Output parameter *pzOut is set to point to the next SQL statement in -** buffer zIn, or to the '\0' byte at the end of zIn if there is no -** next statement. -** -** If successful, TCL_OK is returned. Otherwise, TCL_ERROR is returned -** and an error message loaded into interpreter pDb->interp. -*/ -static int dbPrepareAndBind( - SqliteDb *pDb, /* Database object */ - char const *zIn, /* SQL to compile */ - char const **pzOut, /* OUT: Pointer to next SQL statement */ - SqlPreparedStmt **ppPreStmt /* OUT: Object used to cache statement */ -){ - const char *zSql = zIn; /* Pointer to first SQL statement in zIn */ - sqlite3_stmt *pStmt = 0; /* Prepared statement object */ - SqlPreparedStmt *pPreStmt; /* Pointer to cached statement */ - int nSql; /* Length of zSql in bytes */ - int nVar = 0; /* Number of variables in statement */ - int iParm = 0; /* Next free entry in apParm */ - char c; - int i; - Tcl_Interp *interp = pDb->interp; - - *ppPreStmt = 0; - - /* Trim spaces from the start of zSql and calculate the remaining length. */ - while( (c = zSql[0])==' ' || c=='\t' || c=='\r' || c=='\n' ){ zSql++; } - nSql = strlen30(zSql); - - for(pPreStmt = pDb->stmtList; pPreStmt; pPreStmt=pPreStmt->pNext){ - int n = pPreStmt->nSql; - if( nSql>=n - && memcmp(pPreStmt->zSql, zSql, n)==0 - && (zSql[n]==0 || zSql[n-1]==';') - ){ - pStmt = pPreStmt->pStmt; - *pzOut = &zSql[pPreStmt->nSql]; - - /* When a prepared statement is found, unlink it from the - ** cache list. It will later be added back to the beginning - ** of the cache list in order to implement LRU replacement. - */ - if( pPreStmt->pPrev ){ - pPreStmt->pPrev->pNext = pPreStmt->pNext; - }else{ - pDb->stmtList = pPreStmt->pNext; - } - if( pPreStmt->pNext ){ - pPreStmt->pNext->pPrev = pPreStmt->pPrev; - }else{ - pDb->stmtLast = pPreStmt->pPrev; - } - pDb->nStmt--; - nVar = sqlite3_bind_parameter_count(pStmt); - break; - } - } - - /* If no prepared statement was found. Compile the SQL text. Also allocate - ** a new SqlPreparedStmt structure. */ - if( pPreStmt==0 ){ - int nByte; - - if( SQLITE_OK!=dbPrepare(pDb, zSql, &pStmt, pzOut) ){ - Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3_errmsg(pDb->db), -1)); - return TCL_ERROR; - } - if( pStmt==0 ){ - if( SQLITE_OK!=sqlite3_errcode(pDb->db) ){ - /* A compile-time error in the statement. */ - Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3_errmsg(pDb->db), -1)); - return TCL_ERROR; - }else{ - /* The statement was a no-op. Continue to the next statement - ** in the SQL string. - */ - return TCL_OK; - } - } - - assert( pPreStmt==0 ); - nVar = sqlite3_bind_parameter_count(pStmt); - nByte = sizeof(SqlPreparedStmt) + nVar*sizeof(Tcl_Obj *); - pPreStmt = (SqlPreparedStmt*)Tcl_Alloc(nByte); - memset(pPreStmt, 0, nByte); - - pPreStmt->pStmt = pStmt; - pPreStmt->nSql = (int)(*pzOut - zSql); - pPreStmt->zSql = sqlite3_sql(pStmt); - pPreStmt->apParm = (Tcl_Obj **)&pPreStmt[1]; -#ifdef SQLITE_TEST - if( pPreStmt->zSql==0 ){ - char *zCopy = Tcl_Alloc(pPreStmt->nSql + 1); - memcpy(zCopy, zSql, pPreStmt->nSql); - zCopy[pPreStmt->nSql] = '\0'; - pPreStmt->zSql = zCopy; - } -#endif - } - assert( pPreStmt ); - assert( strlen30(pPreStmt->zSql)==pPreStmt->nSql ); - assert( 0==memcmp(pPreStmt->zSql, zSql, pPreStmt->nSql) ); - - /* Bind values to parameters that begin with $ or : */ - for(i=1; i<=nVar; i++){ - const char *zVar = sqlite3_bind_parameter_name(pStmt, i); - if( zVar!=0 && (zVar[0]=='$' || zVar[0]==':' || zVar[0]=='@') ){ - Tcl_Obj *pVar = Tcl_GetVar2Ex(interp, &zVar[1], 0, 0); - if( pVar ){ - int n; - u8 *data; - const char *zType = (pVar->typePtr ? pVar->typePtr->name : ""); - c = zType[0]; - if( zVar[0]=='@' || - (c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0) ){ - /* Load a BLOB type if the Tcl variable is a bytearray and - ** it has no string representation or the host - ** parameter name begins with "@". */ - data = Tcl_GetByteArrayFromObj(pVar, &n); - sqlite3_bind_blob(pStmt, i, data, n, SQLITE_STATIC); - Tcl_IncrRefCount(pVar); - pPreStmt->apParm[iParm++] = pVar; - }else if( c=='b' && strcmp(zType,"boolean")==0 ){ - Tcl_GetIntFromObj(interp, pVar, &n); - sqlite3_bind_int(pStmt, i, n); - }else if( c=='d' && strcmp(zType,"double")==0 ){ - double r; - Tcl_GetDoubleFromObj(interp, pVar, &r); - sqlite3_bind_double(pStmt, i, r); - }else if( (c=='w' && strcmp(zType,"wideInt")==0) || - (c=='i' && strcmp(zType,"int")==0) ){ - Tcl_WideInt v; - Tcl_GetWideIntFromObj(interp, pVar, &v); - sqlite3_bind_int64(pStmt, i, v); - }else{ - data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n); - sqlite3_bind_text(pStmt, i, (char *)data, n, SQLITE_STATIC); - Tcl_IncrRefCount(pVar); - pPreStmt->apParm[iParm++] = pVar; - } - }else{ - sqlite3_bind_null(pStmt, i); - } - } - } - pPreStmt->nParm = iParm; - *ppPreStmt = pPreStmt; - - return TCL_OK; -} - -/* -** Release a statement reference obtained by calling dbPrepareAndBind(). -** There should be exactly one call to this function for each call to -** dbPrepareAndBind(). -** -** If the discard parameter is non-zero, then the statement is deleted -** immediately. Otherwise it is added to the LRU list and may be returned -** by a subsequent call to dbPrepareAndBind(). -*/ -static void dbReleaseStmt( - SqliteDb *pDb, /* Database handle */ - SqlPreparedStmt *pPreStmt, /* Prepared statement handle to release */ - int discard /* True to delete (not cache) the pPreStmt */ -){ - int i; - - /* Free the bound string and blob parameters */ - for(i=0; i<pPreStmt->nParm; i++){ - Tcl_DecrRefCount(pPreStmt->apParm[i]); - } - pPreStmt->nParm = 0; - - if( pDb->maxStmt<=0 || discard ){ - /* If the cache is turned off, deallocated the statement */ - dbFreeStmt(pPreStmt); - }else{ - /* Add the prepared statement to the beginning of the cache list. */ - pPreStmt->pNext = pDb->stmtList; - pPreStmt->pPrev = 0; - if( pDb->stmtList ){ - pDb->stmtList->pPrev = pPreStmt; - } - pDb->stmtList = pPreStmt; - if( pDb->stmtLast==0 ){ - assert( pDb->nStmt==0 ); - pDb->stmtLast = pPreStmt; - }else{ - assert( pDb->nStmt>0 ); - } - pDb->nStmt++; - - /* If we have too many statement in cache, remove the surplus from - ** the end of the cache list. */ - while( pDb->nStmt>pDb->maxStmt ){ - SqlPreparedStmt *pLast = pDb->stmtLast; - pDb->stmtLast = pLast->pPrev; - pDb->stmtLast->pNext = 0; - pDb->nStmt--; - dbFreeStmt(pLast); - } - } -} - -/* -** Structure used with dbEvalXXX() functions: -** -** dbEvalInit() -** dbEvalStep() -** dbEvalFinalize() -** dbEvalRowInfo() -** dbEvalColumnValue() -*/ -typedef struct DbEvalContext DbEvalContext; -struct DbEvalContext { - SqliteDb *pDb; /* Database handle */ - Tcl_Obj *pSql; /* Object holding string zSql */ - const char *zSql; /* Remaining SQL to execute */ - SqlPreparedStmt *pPreStmt; /* Current statement */ - int nCol; /* Number of columns returned by pStmt */ - Tcl_Obj *pArray; /* Name of array variable */ - Tcl_Obj **apColName; /* Array of column names */ -}; - -/* -** Release any cache of column names currently held as part of -** the DbEvalContext structure passed as the first argument. -*/ -static void dbReleaseColumnNames(DbEvalContext *p){ - if( p->apColName ){ - int i; - for(i=0; i<p->nCol; i++){ - Tcl_DecrRefCount(p->apColName[i]); - } - Tcl_Free((char *)p->apColName); - p->apColName = 0; - } - p->nCol = 0; -} - -/* -** Initialize a DbEvalContext structure. -** -** If pArray is not NULL, then it contains the name of a Tcl array -** variable. The "*" member of this array is set to a list containing -** the names of the columns returned by the statement as part of each -** call to dbEvalStep(), in order from left to right. e.g. if the names -** of the returned columns are a, b and c, it does the equivalent of the -** tcl command: -** -** set ${pArray}(*) {a b c} -*/ -static void dbEvalInit( - DbEvalContext *p, /* Pointer to structure to initialize */ - SqliteDb *pDb, /* Database handle */ - Tcl_Obj *pSql, /* Object containing SQL script */ - Tcl_Obj *pArray /* Name of Tcl array to set (*) element of */ -){ - memset(p, 0, sizeof(DbEvalContext)); - p->pDb = pDb; - p->zSql = Tcl_GetString(pSql); - p->pSql = pSql; - Tcl_IncrRefCount(pSql); - if( pArray ){ - p->pArray = pArray; - Tcl_IncrRefCount(pArray); - } -} - -/* -** Obtain information about the row that the DbEvalContext passed as the -** first argument currently points to. -*/ -static void dbEvalRowInfo( - DbEvalContext *p, /* Evaluation context */ - int *pnCol, /* OUT: Number of column names */ - Tcl_Obj ***papColName /* OUT: Array of column names */ -){ - /* Compute column names */ - if( 0==p->apColName ){ - sqlite3_stmt *pStmt = p->pPreStmt->pStmt; - int i; /* Iterator variable */ - int nCol; /* Number of columns returned by pStmt */ - Tcl_Obj **apColName = 0; /* Array of column names */ - - p->nCol = nCol = sqlite3_column_count(pStmt); - if( nCol>0 && (papColName || p->pArray) ){ - apColName = (Tcl_Obj**)Tcl_Alloc( sizeof(Tcl_Obj*)*nCol ); - for(i=0; i<nCol; i++){ - apColName[i] = Tcl_NewStringObj(sqlite3_column_name(pStmt,i), -1); - Tcl_IncrRefCount(apColName[i]); - } - p->apColName = apColName; - } - - /* If results are being stored in an array variable, then create - ** the array(*) entry for that array - */ - if( p->pArray ){ - Tcl_Interp *interp = p->pDb->interp; - Tcl_Obj *pColList = Tcl_NewObj(); - Tcl_Obj *pStar = Tcl_NewStringObj("*", -1); - - for(i=0; i<nCol; i++){ - Tcl_ListObjAppendElement(interp, pColList, apColName[i]); - } - Tcl_IncrRefCount(pStar); - Tcl_ObjSetVar2(interp, p->pArray, pStar, pColList, 0); - Tcl_DecrRefCount(pStar); - } - } - - if( papColName ){ - *papColName = p->apColName; - } - if( pnCol ){ - *pnCol = p->nCol; - } -} - -/* -** Return one of TCL_OK, TCL_BREAK or TCL_ERROR. If TCL_ERROR is -** returned, then an error message is stored in the interpreter before -** returning. -** -** A return value of TCL_OK means there is a row of data available. The -** data may be accessed using dbEvalRowInfo() and dbEvalColumnValue(). This -** is analogous to a return of SQLITE_ROW from sqlite3_step(). If TCL_BREAK -** is returned, then the SQL script has finished executing and there are -** no further rows available. This is similar to SQLITE_DONE. -*/ -static int dbEvalStep(DbEvalContext *p){ - const char *zPrevSql = 0; /* Previous value of p->zSql */ - - while( p->zSql[0] || p->pPreStmt ){ - int rc; - if( p->pPreStmt==0 ){ - zPrevSql = (p->zSql==zPrevSql ? 0 : p->zSql); - rc = dbPrepareAndBind(p->pDb, p->zSql, &p->zSql, &p->pPreStmt); - if( rc!=TCL_OK ) return rc; - }else{ - int rcs; - SqliteDb *pDb = p->pDb; - SqlPreparedStmt *pPreStmt = p->pPreStmt; - sqlite3_stmt *pStmt = pPreStmt->pStmt; - - rcs = sqlite3_step(pStmt); - if( rcs==SQLITE_ROW ){ - return TCL_OK; - } - if( p->pArray ){ - dbEvalRowInfo(p, 0, 0); - } - rcs = sqlite3_reset(pStmt); - - pDb->nStep = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_FULLSCAN_STEP,1); - pDb->nSort = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_SORT,1); - pDb->nIndex = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_AUTOINDEX,1); - dbReleaseColumnNames(p); - p->pPreStmt = 0; - - if( rcs!=SQLITE_OK ){ - /* If a run-time error occurs, report the error and stop reading - ** the SQL. */ - dbReleaseStmt(pDb, pPreStmt, 1); -#if SQLITE_TEST - if( p->pDb->bLegacyPrepare && rcs==SQLITE_SCHEMA && zPrevSql ){ - /* If the runtime error was an SQLITE_SCHEMA, and the database - ** handle is configured to use the legacy sqlite3_prepare() - ** interface, retry prepare()/step() on the same SQL statement. - ** This only happens once. If there is a second SQLITE_SCHEMA - ** error, the error will be returned to the caller. */ - p->zSql = zPrevSql; - continue; - } -#endif - Tcl_SetObjResult(pDb->interp, - Tcl_NewStringObj(sqlite3_errmsg(pDb->db), -1)); - return TCL_ERROR; - }else{ - dbReleaseStmt(pDb, pPreStmt, 0); - } - } - } - - /* Finished */ - return TCL_BREAK; -} - -/* -** Free all resources currently held by the DbEvalContext structure passed -** as the first argument. There should be exactly one call to this function -** for each call to dbEvalInit(). -*/ -static void dbEvalFinalize(DbEvalContext *p){ - if( p->pPreStmt ){ - sqlite3_reset(p->pPreStmt->pStmt); - dbReleaseStmt(p->pDb, p->pPreStmt, 0); - p->pPreStmt = 0; - } - if( p->pArray ){ - Tcl_DecrRefCount(p->pArray); - p->pArray = 0; - } - Tcl_DecrRefCount(p->pSql); - dbReleaseColumnNames(p); -} - -/* -** Return a pointer to a Tcl_Obj structure with ref-count 0 that contains -** the value for the iCol'th column of the row currently pointed to by -** the DbEvalContext structure passed as the first argument. -*/ -static Tcl_Obj *dbEvalColumnValue(DbEvalContext *p, int iCol){ - sqlite3_stmt *pStmt = p->pPreStmt->pStmt; - switch( sqlite3_column_type(pStmt, iCol) ){ - case SQLITE_BLOB: { - int bytes = sqlite3_column_bytes(pStmt, iCol); - const char *zBlob = sqlite3_column_blob(pStmt, iCol); - if( !zBlob ) bytes = 0; - return Tcl_NewByteArrayObj((u8*)zBlob, bytes); - } - case SQLITE_INTEGER: { - sqlite_int64 v = sqlite3_column_int64(pStmt, iCol); - if( v>=-2147483647 && v<=2147483647 ){ - return Tcl_NewIntObj((int)v); - }else{ - return Tcl_NewWideIntObj(v); - } - } - case SQLITE_FLOAT: { - return Tcl_NewDoubleObj(sqlite3_column_double(pStmt, iCol)); - } - case SQLITE_NULL: { - return Tcl_NewStringObj(p->pDb->zNull, -1); - } - } - - return Tcl_NewStringObj((char*)sqlite3_column_text(pStmt, iCol), -1); -} - -/* -** If using Tcl version 8.6 or greater, use the NR functions to avoid -** recursive evalution of scripts by the [db eval] and [db trans] -** commands. Even if the headers used while compiling the extension -** are 8.6 or newer, the code still tests the Tcl version at runtime. -** This allows stubs-enabled builds to be used with older Tcl libraries. -*/ -#if TCL_MAJOR_VERSION>8 || (TCL_MAJOR_VERSION==8 && TCL_MINOR_VERSION>=6) -# define SQLITE_TCL_NRE 1 -static int DbUseNre(void){ - int major, minor; - Tcl_GetVersion(&major, &minor, 0, 0); - return( (major==8 && minor>=6) || major>8 ); -} -#else -/* -** Compiling using headers earlier than 8.6. In this case NR cannot be -** used, so DbUseNre() to always return zero. Add #defines for the other -** Tcl_NRxxx() functions to prevent them from causing compilation errors, -** even though the only invocations of them are within conditional blocks -** of the form: -** -** if( DbUseNre() ) { ... } -*/ -# define SQLITE_TCL_NRE 0 -# define DbUseNre() 0 -# define Tcl_NRAddCallback(a,b,c,d,e,f) (void)0 -# define Tcl_NREvalObj(a,b,c) 0 -# define Tcl_NRCreateCommand(a,b,c,d,e,f) (void)0 -#endif - -/* -** This function is part of the implementation of the command: -** -** $db eval SQL ?ARRAYNAME? SCRIPT -*/ -static int DbEvalNextCmd( - ClientData data[], /* data[0] is the (DbEvalContext*) */ - Tcl_Interp *interp, /* Tcl interpreter */ - int result /* Result so far */ -){ - int rc = result; /* Return code */ - - /* The first element of the data[] array is a pointer to a DbEvalContext - ** structure allocated using Tcl_Alloc(). The second element of data[] - ** is a pointer to a Tcl_Obj containing the script to run for each row - ** returned by the queries encapsulated in data[0]. */ - DbEvalContext *p = (DbEvalContext *)data[0]; - Tcl_Obj *pScript = (Tcl_Obj *)data[1]; - Tcl_Obj *pArray = p->pArray; - - while( (rc==TCL_OK || rc==TCL_CONTINUE) && TCL_OK==(rc = dbEvalStep(p)) ){ - int i; - int nCol; - Tcl_Obj **apColName; - dbEvalRowInfo(p, &nCol, &apColName); - for(i=0; i<nCol; i++){ - Tcl_Obj *pVal = dbEvalColumnValue(p, i); - if( pArray==0 ){ - Tcl_ObjSetVar2(interp, apColName[i], 0, pVal, 0); - }else{ - Tcl_ObjSetVar2(interp, pArray, apColName[i], pVal, 0); - } - } - - /* The required interpreter variables are now populated with the data - ** from the current row. If using NRE, schedule callbacks to evaluate - ** script pScript, then to invoke this function again to fetch the next - ** row (or clean up if there is no next row or the script throws an - ** exception). After scheduling the callbacks, return control to the - ** caller. - ** - ** If not using NRE, evaluate pScript directly and continue with the - ** next iteration of this while(...) loop. */ - if( DbUseNre() ){ - Tcl_NRAddCallback(interp, DbEvalNextCmd, (void*)p, (void*)pScript, 0, 0); - return Tcl_NREvalObj(interp, pScript, 0); - }else{ - rc = Tcl_EvalObjEx(interp, pScript, 0); - } - } - - Tcl_DecrRefCount(pScript); - dbEvalFinalize(p); - Tcl_Free((char *)p); - - if( rc==TCL_OK || rc==TCL_BREAK ){ - Tcl_ResetResult(interp); - rc = TCL_OK; - } - return rc; -} - -/* -** The "sqlite" command below creates a new Tcl command for each -** connection it opens to an SQLite database. This routine is invoked -** whenever one of those connection-specific commands is executed -** in Tcl. For example, if you run Tcl code like this: -** -** sqlite3 db1 "my_database" -** db1 close -** -** The first command opens a connection to the "my_database" database -** and calls that connection "db1". The second command causes this -** subroutine to be invoked. -*/ -static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){ - SqliteDb *pDb = (SqliteDb*)cd; - int choice; - int rc = TCL_OK; - static const char *DB_strs[] = { - "authorizer", "backup", "busy", - "cache", "changes", "close", - "collate", "collation_needed", "commit_hook", - "complete", "copy", "enable_load_extension", - "errorcode", "eval", "exists", - "function", "incrblob", "interrupt", - "last_insert_rowid", "nullvalue", "onecolumn", - "profile", "progress", "rekey", - "restore", "rollback_hook", "status", - "timeout", "total_changes", "trace", - "transaction", "unlock_notify", "update_hook", - "version", "wal_hook", 0 - }; - enum DB_enum { - DB_AUTHORIZER, DB_BACKUP, DB_BUSY, - DB_CACHE, DB_CHANGES, DB_CLOSE, - DB_COLLATE, DB_COLLATION_NEEDED, DB_COMMIT_HOOK, - DB_COMPLETE, DB_COPY, DB_ENABLE_LOAD_EXTENSION, - DB_ERRORCODE, DB_EVAL, DB_EXISTS, - DB_FUNCTION, DB_INCRBLOB, DB_INTERRUPT, - DB_LAST_INSERT_ROWID, DB_NULLVALUE, DB_ONECOLUMN, - DB_PROFILE, DB_PROGRESS, DB_REKEY, - DB_RESTORE, DB_ROLLBACK_HOOK, DB_STATUS, - DB_TIMEOUT, DB_TOTAL_CHANGES, DB_TRACE, - DB_TRANSACTION, DB_UNLOCK_NOTIFY, DB_UPDATE_HOOK, - DB_VERSION, DB_WAL_HOOK - }; - /* don't leave trailing commas on DB_enum, it confuses the AIX xlc compiler */ - - if( objc<2 ){ - Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ..."); - return TCL_ERROR; - } - if( Tcl_GetIndexFromObj(interp, objv[1], DB_strs, "option", 0, &choice) ){ - return TCL_ERROR; - } - - switch( (enum DB_enum)choice ){ - - /* $db authorizer ?CALLBACK? - ** - ** Invoke the given callback to authorize each SQL operation as it is - ** compiled. 5 arguments are appended to the callback before it is - ** invoked: - ** - ** (1) The authorization type (ex: SQLITE_CREATE_TABLE, SQLITE_INSERT, ...) - ** (2) First descriptive name (depends on authorization type) - ** (3) Second descriptive name - ** (4) Name of the database (ex: "main", "temp") - ** (5) Name of trigger that is doing the access - ** - ** The callback should return on of the following strings: SQLITE_OK, - ** SQLITE_IGNORE, or SQLITE_DENY. Any other return value is an error. - ** - ** If this method is invoked with no arguments, the current authorization - ** callback string is returned. - */ - case DB_AUTHORIZER: { -#ifdef SQLITE_OMIT_AUTHORIZATION - Tcl_AppendResult(interp, "authorization not available in this build", - (char*)0); - return TCL_ERROR; -#else - if( objc>3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?"); - return TCL_ERROR; - }else if( objc==2 ){ - if( pDb->zAuth ){ - Tcl_AppendResult(interp, pDb->zAuth, (char*)0); - } - }else{ - char *zAuth; - int len; - if( pDb->zAuth ){ - Tcl_Free(pDb->zAuth); - } - zAuth = Tcl_GetStringFromObj(objv[2], &len); - if( zAuth && len>0 ){ - pDb->zAuth = Tcl_Alloc( len + 1 ); - memcpy(pDb->zAuth, zAuth, len+1); - }else{ - pDb->zAuth = 0; - } - if( pDb->zAuth ){ - typedef int (*sqlite3_auth_cb)( - void*,int,const char*,const char*, - const char*,const char*); - pDb->interp = interp; - sqlite3_set_authorizer(pDb->db,(sqlite3_auth_cb)auth_callback,pDb); - }else{ - sqlite3_set_authorizer(pDb->db, 0, 0); - } - } -#endif - break; - } - - /* $db backup ?DATABASE? FILENAME - ** - ** Open or create a database file named FILENAME. Transfer the - ** content of local database DATABASE (default: "main") into the - ** FILENAME database. - */ - case DB_BACKUP: { - const char *zDestFile; - const char *zSrcDb; - sqlite3 *pDest; - sqlite3_backup *pBackup; - - if( objc==3 ){ - zSrcDb = "main"; - zDestFile = Tcl_GetString(objv[2]); - }else if( objc==4 ){ - zSrcDb = Tcl_GetString(objv[2]); - zDestFile = Tcl_GetString(objv[3]); - }else{ - Tcl_WrongNumArgs(interp, 2, objv, "?DATABASE? FILENAME"); - return TCL_ERROR; - } - rc = sqlite3_open(zDestFile, &pDest); - if( rc!=SQLITE_OK ){ - Tcl_AppendResult(interp, "cannot open target database: ", - sqlite3_errmsg(pDest), (char*)0); - sqlite3_close(pDest); - return TCL_ERROR; - } - pBackup = sqlite3_backup_init(pDest, "main", pDb->db, zSrcDb); - if( pBackup==0 ){ - Tcl_AppendResult(interp, "backup failed: ", - sqlite3_errmsg(pDest), (char*)0); - sqlite3_close(pDest); - return TCL_ERROR; - } - while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){} - sqlite3_backup_finish(pBackup); - if( rc==SQLITE_DONE ){ - rc = TCL_OK; - }else{ - Tcl_AppendResult(interp, "backup failed: ", - sqlite3_errmsg(pDest), (char*)0); - rc = TCL_ERROR; - } - sqlite3_close(pDest); - break; - } - - /* $db busy ?CALLBACK? - ** - ** Invoke the given callback if an SQL statement attempts to open - ** a locked database file. - */ - case DB_BUSY: { - if( objc>3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "CALLBACK"); - return TCL_ERROR; - }else if( objc==2 ){ - if( pDb->zBusy ){ - Tcl_AppendResult(interp, pDb->zBusy, (char*)0); - } - }else{ - char *zBusy; - int len; - if( pDb->zBusy ){ - Tcl_Free(pDb->zBusy); - } - zBusy = Tcl_GetStringFromObj(objv[2], &len); - if( zBusy && len>0 ){ - pDb->zBusy = Tcl_Alloc( len + 1 ); - memcpy(pDb->zBusy, zBusy, len+1); - }else{ - pDb->zBusy = 0; - } - if( pDb->zBusy ){ - pDb->interp = interp; - sqlite3_busy_handler(pDb->db, DbBusyHandler, pDb); - }else{ - sqlite3_busy_handler(pDb->db, 0, 0); - } - } - break; - } - - /* $db cache flush - ** $db cache size n - ** - ** Flush the prepared statement cache, or set the maximum number of - ** cached statements. - */ - case DB_CACHE: { - char *subCmd; - int n; - - if( objc<=2 ){ - Tcl_WrongNumArgs(interp, 1, objv, "cache option ?arg?"); - return TCL_ERROR; - } - subCmd = Tcl_GetStringFromObj( objv[2], 0 ); - if( *subCmd=='f' && strcmp(subCmd,"flush")==0 ){ - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "flush"); - return TCL_ERROR; - }else{ - flushStmtCache( pDb ); - } - }else if( *subCmd=='s' && strcmp(subCmd,"size")==0 ){ - if( objc!=4 ){ - Tcl_WrongNumArgs(interp, 2, objv, "size n"); - return TCL_ERROR; - }else{ - if( TCL_ERROR==Tcl_GetIntFromObj(interp, objv[3], &n) ){ - Tcl_AppendResult( interp, "cannot convert \"", - Tcl_GetStringFromObj(objv[3],0), "\" to integer", (char*)0); - return TCL_ERROR; - }else{ - if( n<0 ){ - flushStmtCache( pDb ); - n = 0; - }else if( n>MAX_PREPARED_STMTS ){ - n = MAX_PREPARED_STMTS; - } - pDb->maxStmt = n; - } - } - }else{ - Tcl_AppendResult( interp, "bad option \"", - Tcl_GetStringFromObj(objv[2],0), "\": must be flush or size", - (char*)0); - return TCL_ERROR; - } - break; - } - - /* $db changes - ** - ** Return the number of rows that were modified, inserted, or deleted by - ** the most recent INSERT, UPDATE or DELETE statement, not including - ** any changes made by trigger programs. - */ - case DB_CHANGES: { - Tcl_Obj *pResult; - if( objc!=2 ){ - Tcl_WrongNumArgs(interp, 2, objv, ""); - return TCL_ERROR; - } - pResult = Tcl_GetObjResult(interp); - Tcl_SetIntObj(pResult, sqlite3_changes(pDb->db)); - break; - } - - /* $db close - ** - ** Shutdown the database - */ - case DB_CLOSE: { - Tcl_DeleteCommand(interp, Tcl_GetStringFromObj(objv[0], 0)); - break; - } - - /* - ** $db collate NAME SCRIPT - ** - ** Create a new SQL collation function called NAME. Whenever - ** that function is called, invoke SCRIPT to evaluate the function. - */ - case DB_COLLATE: { - SqlCollate *pCollate; - char *zName; - char *zScript; - int nScript; - if( objc!=4 ){ - Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT"); - return TCL_ERROR; - } - zName = Tcl_GetStringFromObj(objv[2], 0); - zScript = Tcl_GetStringFromObj(objv[3], &nScript); - pCollate = (SqlCollate*)Tcl_Alloc( sizeof(*pCollate) + nScript + 1 ); - if( pCollate==0 ) return TCL_ERROR; - pCollate->interp = interp; - pCollate->pNext = pDb->pCollate; - pCollate->zScript = (char*)&pCollate[1]; - pDb->pCollate = pCollate; - memcpy(pCollate->zScript, zScript, nScript+1); - if( sqlite3_create_collation(pDb->db, zName, SQLITE_UTF8, - pCollate, tclSqlCollate) ){ - Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE); - return TCL_ERROR; - } - break; - } - - /* - ** $db collation_needed SCRIPT - ** - ** Create a new SQL collation function called NAME. Whenever - ** that function is called, invoke SCRIPT to evaluate the function. - */ - case DB_COLLATION_NEEDED: { - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "SCRIPT"); - return TCL_ERROR; - } - if( pDb->pCollateNeeded ){ - Tcl_DecrRefCount(pDb->pCollateNeeded); - } - pDb->pCollateNeeded = Tcl_DuplicateObj(objv[2]); - Tcl_IncrRefCount(pDb->pCollateNeeded); - sqlite3_collation_needed(pDb->db, pDb, tclCollateNeeded); - break; - } - - /* $db commit_hook ?CALLBACK? - ** - ** Invoke the given callback just before committing every SQL transaction. - ** If the callback throws an exception or returns non-zero, then the - ** transaction is aborted. If CALLBACK is an empty string, the callback - ** is disabled. - */ - case DB_COMMIT_HOOK: { - if( objc>3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?"); - return TCL_ERROR; - }else if( objc==2 ){ - if( pDb->zCommit ){ - Tcl_AppendResult(interp, pDb->zCommit, (char*)0); - } - }else{ - const char *zCommit; - int len; - if( pDb->zCommit ){ - Tcl_Free(pDb->zCommit); - } - zCommit = Tcl_GetStringFromObj(objv[2], &len); - if( zCommit && len>0 ){ - pDb->zCommit = Tcl_Alloc( len + 1 ); - memcpy(pDb->zCommit, zCommit, len+1); - }else{ - pDb->zCommit = 0; - } - if( pDb->zCommit ){ - pDb->interp = interp; - sqlite3_commit_hook(pDb->db, DbCommitHandler, pDb); - }else{ - sqlite3_commit_hook(pDb->db, 0, 0); - } - } - break; - } - - /* $db complete SQL - ** - ** Return TRUE if SQL is a complete SQL statement. Return FALSE if - ** additional lines of input are needed. This is similar to the - ** built-in "info complete" command of Tcl. - */ - case DB_COMPLETE: { -#ifndef SQLITE_OMIT_COMPLETE - Tcl_Obj *pResult; - int isComplete; - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "SQL"); - return TCL_ERROR; - } - isComplete = sqlite3_complete( Tcl_GetStringFromObj(objv[2], 0) ); - pResult = Tcl_GetObjResult(interp); - Tcl_SetBooleanObj(pResult, isComplete); -#endif - break; - } - - /* $db copy conflict-algorithm table filename ?SEPARATOR? ?NULLINDICATOR? - ** - ** Copy data into table from filename, optionally using SEPARATOR - ** as column separators. If a column contains a null string, or the - ** value of NULLINDICATOR, a NULL is inserted for the column. - ** conflict-algorithm is one of the sqlite conflict algorithms: - ** rollback, abort, fail, ignore, replace - ** On success, return the number of lines processed, not necessarily same - ** as 'db changes' due to conflict-algorithm selected. - ** - ** This code is basically an implementation/enhancement of - ** the sqlite3 shell.c ".import" command. - ** - ** This command usage is equivalent to the sqlite2.x COPY statement, - ** which imports file data into a table using the PostgreSQL COPY file format: - ** $db copy $conflit_algo $table_name $filename \t \\N - */ - case DB_COPY: { - char *zTable; /* Insert data into this table */ - char *zFile; /* The file from which to extract data */ - char *zConflict; /* The conflict algorithm to use */ - sqlite3_stmt *pStmt; /* A statement */ - int nCol; /* Number of columns in the table */ - int nByte; /* Number of bytes in an SQL string */ - int i, j; /* Loop counters */ - int nSep; /* Number of bytes in zSep[] */ - int nNull; /* Number of bytes in zNull[] */ - char *zSql; /* An SQL statement */ - char *zLine; /* A single line of input from the file */ - char **azCol; /* zLine[] broken up into columns */ - const char *zCommit; /* How to commit changes */ - FILE *in; /* The input file */ - int lineno = 0; /* Line number of input file */ - char zLineNum[80]; /* Line number print buffer */ - Tcl_Obj *pResult; /* interp result */ - - const char *zSep; - const char *zNull; - if( objc<5 || objc>7 ){ - Tcl_WrongNumArgs(interp, 2, objv, - "CONFLICT-ALGORITHM TABLE FILENAME ?SEPARATOR? ?NULLINDICATOR?"); - return TCL_ERROR; - } - if( objc>=6 ){ - zSep = Tcl_GetStringFromObj(objv[5], 0); - }else{ - zSep = "\t"; - } - if( objc>=7 ){ - zNull = Tcl_GetStringFromObj(objv[6], 0); - }else{ - zNull = ""; - } - zConflict = Tcl_GetStringFromObj(objv[2], 0); - zTable = Tcl_GetStringFromObj(objv[3], 0); - zFile = Tcl_GetStringFromObj(objv[4], 0); - nSep = strlen30(zSep); - nNull = strlen30(zNull); - if( nSep==0 ){ - Tcl_AppendResult(interp,"Error: non-null separator required for copy", - (char*)0); - return TCL_ERROR; - } - if(strcmp(zConflict, "rollback") != 0 && - strcmp(zConflict, "abort" ) != 0 && - strcmp(zConflict, "fail" ) != 0 && - strcmp(zConflict, "ignore" ) != 0 && - strcmp(zConflict, "replace" ) != 0 ) { - Tcl_AppendResult(interp, "Error: \"", zConflict, - "\", conflict-algorithm must be one of: rollback, " - "abort, fail, ignore, or replace", (char*)0); - return TCL_ERROR; - } - zSql = sqlite3_mprintf("SELECT * FROM '%q'", zTable); - if( zSql==0 ){ - Tcl_AppendResult(interp, "Error: no such table: ", zTable, (char*)0); - return TCL_ERROR; - } - nByte = strlen30(zSql); - rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0); - sqlite3_free(zSql); - if( rc ){ - Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), (char*)0); - nCol = 0; - }else{ - nCol = sqlite3_column_count(pStmt); - } - sqlite3_finalize(pStmt); - if( nCol==0 ) { - return TCL_ERROR; - } - zSql = malloc( nByte + 50 + nCol*2 ); - if( zSql==0 ) { - Tcl_AppendResult(interp, "Error: can't malloc()", (char*)0); - return TCL_ERROR; - } - sqlite3_snprintf(nByte+50, zSql, "INSERT OR %q INTO '%q' VALUES(?", - zConflict, zTable); - j = strlen30(zSql); - for(i=1; i<nCol; i++){ - zSql[j++] = ','; - zSql[j++] = '?'; - } - zSql[j++] = ')'; - zSql[j] = 0; - rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0); - free(zSql); - if( rc ){ - Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), (char*)0); - sqlite3_finalize(pStmt); - return TCL_ERROR; - } - in = fopen(zFile, "rb"); - if( in==0 ){ - Tcl_AppendResult(interp, "Error: cannot open file: ", zFile, NULL); - sqlite3_finalize(pStmt); - return TCL_ERROR; - } - azCol = malloc( sizeof(azCol[0])*(nCol+1) ); - if( azCol==0 ) { - Tcl_AppendResult(interp, "Error: can't malloc()", (char*)0); - fclose(in); - return TCL_ERROR; - } - (void)sqlite3_exec(pDb->db, "BEGIN", 0, 0, 0); - zCommit = "COMMIT"; - while( (zLine = local_getline(0, in))!=0 ){ - char *z; - lineno++; - azCol[0] = zLine; - for(i=0, z=zLine; *z; z++){ - if( *z==zSep[0] && strncmp(z, zSep, nSep)==0 ){ - *z = 0; - i++; - if( i<nCol ){ - azCol[i] = &z[nSep]; - z += nSep-1; - } - } - } - if( i+1!=nCol ){ - char *zErr; - int nErr = strlen30(zFile) + 200; - zErr = malloc(nErr); - if( zErr ){ - sqlite3_snprintf(nErr, zErr, - "Error: %s line %d: expected %d columns of data but found %d", - zFile, lineno, nCol, i+1); - Tcl_AppendResult(interp, zErr, (char*)0); - free(zErr); - } - zCommit = "ROLLBACK"; - break; - } - for(i=0; i<nCol; i++){ - /* check for null data, if so, bind as null */ - if( (nNull>0 && strcmp(azCol[i], zNull)==0) - || strlen30(azCol[i])==0 - ){ - sqlite3_bind_null(pStmt, i+1); - }else{ - sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC); - } - } - sqlite3_step(pStmt); - rc = sqlite3_reset(pStmt); - free(zLine); - if( rc!=SQLITE_OK ){ - Tcl_AppendResult(interp,"Error: ", sqlite3_errmsg(pDb->db), (char*)0); - zCommit = "ROLLBACK"; - break; - } - } - free(azCol); - fclose(in); - sqlite3_finalize(pStmt); - (void)sqlite3_exec(pDb->db, zCommit, 0, 0, 0); - - if( zCommit[0] == 'C' ){ - /* success, set result as number of lines processed */ - pResult = Tcl_GetObjResult(interp); - Tcl_SetIntObj(pResult, lineno); - rc = TCL_OK; - }else{ - /* failure, append lineno where failed */ - sqlite3_snprintf(sizeof(zLineNum), zLineNum,"%d",lineno); - Tcl_AppendResult(interp,", failed while processing line: ",zLineNum, - (char*)0); - rc = TCL_ERROR; - } - break; - } - - /* - ** $db enable_load_extension BOOLEAN - ** - ** Turn the extension loading feature on or off. It if off by - ** default. - */ - case DB_ENABLE_LOAD_EXTENSION: { -#ifndef SQLITE_OMIT_LOAD_EXTENSION - int onoff; - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "BOOLEAN"); - return TCL_ERROR; - } - if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){ - return TCL_ERROR; - } - sqlite3_enable_load_extension(pDb->db, onoff); - break; -#else - Tcl_AppendResult(interp, "extension loading is turned off at compile-time", - (char*)0); - return TCL_ERROR; -#endif - } - - /* - ** $db errorcode - ** - ** Return the numeric error code that was returned by the most recent - ** call to sqlite3_exec(). - */ - case DB_ERRORCODE: { - Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_errcode(pDb->db))); - break; - } - - /* - ** $db exists $sql - ** $db onecolumn $sql - ** - ** The onecolumn method is the equivalent of: - ** lindex [$db eval $sql] 0 - */ - case DB_EXISTS: - case DB_ONECOLUMN: { - DbEvalContext sEval; - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "SQL"); - return TCL_ERROR; - } - - dbEvalInit(&sEval, pDb, objv[2], 0); - rc = dbEvalStep(&sEval); - if( choice==DB_ONECOLUMN ){ - if( rc==TCL_OK ){ - Tcl_SetObjResult(interp, dbEvalColumnValue(&sEval, 0)); - }else if( rc==TCL_BREAK ){ - Tcl_ResetResult(interp); - } - }else if( rc==TCL_BREAK || rc==TCL_OK ){ - Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc==TCL_OK)); - } - dbEvalFinalize(&sEval); - - if( rc==TCL_BREAK ){ - rc = TCL_OK; - } - break; - } - - /* - ** $db eval $sql ?array? ?{ ...code... }? - ** - ** The SQL statement in $sql is evaluated. For each row, the values are - ** placed in elements of the array named "array" and ...code... is executed. - ** If "array" and "code" are omitted, then no callback is every invoked. - ** If "array" is an empty string, then the values are placed in variables - ** that have the same name as the fields extracted by the query. - */ - case DB_EVAL: { - if( objc<3 || objc>5 ){ - Tcl_WrongNumArgs(interp, 2, objv, "SQL ?ARRAY-NAME? ?SCRIPT?"); - return TCL_ERROR; - } - - if( objc==3 ){ - DbEvalContext sEval; - Tcl_Obj *pRet = Tcl_NewObj(); - Tcl_IncrRefCount(pRet); - dbEvalInit(&sEval, pDb, objv[2], 0); - while( TCL_OK==(rc = dbEvalStep(&sEval)) ){ - int i; - int nCol; - dbEvalRowInfo(&sEval, &nCol, 0); - for(i=0; i<nCol; i++){ - Tcl_ListObjAppendElement(interp, pRet, dbEvalColumnValue(&sEval, i)); - } - } - dbEvalFinalize(&sEval); - if( rc==TCL_BREAK ){ - Tcl_SetObjResult(interp, pRet); - rc = TCL_OK; - } - Tcl_DecrRefCount(pRet); - }else{ - ClientData cd2[2]; - DbEvalContext *p; - Tcl_Obj *pArray = 0; - Tcl_Obj *pScript; - - if( objc==5 && *(char *)Tcl_GetString(objv[3]) ){ - pArray = objv[3]; - } - pScript = objv[objc-1]; - Tcl_IncrRefCount(pScript); - - p = (DbEvalContext *)Tcl_Alloc(sizeof(DbEvalContext)); - dbEvalInit(p, pDb, objv[2], pArray); - - cd2[0] = (void *)p; - cd2[1] = (void *)pScript; - rc = DbEvalNextCmd(cd2, interp, TCL_OK); - } - break; - } - - /* - ** $db function NAME [-argcount N] [-deterministic] SCRIPT - ** - ** Create a new SQL function called NAME. Whenever that function is - ** called, invoke SCRIPT to evaluate the function. - */ - case DB_FUNCTION: { - int flags = SQLITE_UTF8; - SqlFunc *pFunc; - Tcl_Obj *pScript; - char *zName; - int nArg = -1; - int i; - if( objc<4 ){ - Tcl_WrongNumArgs(interp, 2, objv, "NAME ?SWITCHES? SCRIPT"); - return TCL_ERROR; - } - for(i=3; i<(objc-1); i++){ - const char *z = Tcl_GetString(objv[i]); - int n = strlen30(z); - if( n>2 && strncmp(z, "-argcount",n)==0 ){ - if( i==(objc-2) ){ - Tcl_AppendResult(interp, "option requires an argument: ", z, 0); - return TCL_ERROR; - } - if( Tcl_GetIntFromObj(interp, objv[i+1], &nArg) ) return TCL_ERROR; - if( nArg<0 ){ - Tcl_AppendResult(interp, "number of arguments must be non-negative", - (char*)0); - return TCL_ERROR; - } - i++; - }else - if( n>2 && strncmp(z, "-deterministic",n)==0 ){ - flags |= SQLITE_DETERMINISTIC; - }else{ - Tcl_AppendResult(interp, "bad option \"", z, - "\": must be -argcount or -deterministic", 0 - ); - return TCL_ERROR; - } - } - - pScript = objv[objc-1]; - zName = Tcl_GetStringFromObj(objv[2], 0); - pFunc = findSqlFunc(pDb, zName); - if( pFunc==0 ) return TCL_ERROR; - if( pFunc->pScript ){ - Tcl_DecrRefCount(pFunc->pScript); - } - pFunc->pScript = pScript; - Tcl_IncrRefCount(pScript); - pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript); - rc = sqlite3_create_function(pDb->db, zName, nArg, flags, - pFunc, tclSqlFunc, 0, 0); - if( rc!=SQLITE_OK ){ - rc = TCL_ERROR; - Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE); - } - break; - } - - /* - ** $db incrblob ?-readonly? ?DB? TABLE COLUMN ROWID - */ - case DB_INCRBLOB: { -#ifdef SQLITE_OMIT_INCRBLOB - Tcl_AppendResult(interp, "incrblob not available in this build", (char*)0); - return TCL_ERROR; -#else - int isReadonly = 0; - const char *zDb = "main"; - const char *zTable; - const char *zColumn; - Tcl_WideInt iRow; - - /* Check for the -readonly option */ - if( objc>3 && strcmp(Tcl_GetString(objv[2]), "-readonly")==0 ){ - isReadonly = 1; - } - - if( objc!=(5+isReadonly) && objc!=(6+isReadonly) ){ - Tcl_WrongNumArgs(interp, 2, objv, "?-readonly? ?DB? TABLE COLUMN ROWID"); - return TCL_ERROR; - } - - if( objc==(6+isReadonly) ){ - zDb = Tcl_GetString(objv[2]); - } - zTable = Tcl_GetString(objv[objc-3]); - zColumn = Tcl_GetString(objv[objc-2]); - rc = Tcl_GetWideIntFromObj(interp, objv[objc-1], &iRow); - - if( rc==TCL_OK ){ - rc = createIncrblobChannel( - interp, pDb, zDb, zTable, zColumn, (sqlite3_int64)iRow, isReadonly - ); - } -#endif - break; - } - - /* - ** $db interrupt - ** - ** Interrupt the execution of the inner-most SQL interpreter. This - ** causes the SQL statement to return an error of SQLITE_INTERRUPT. - */ - case DB_INTERRUPT: { - sqlite3_interrupt(pDb->db); - break; - } - - /* - ** $db nullvalue ?STRING? - ** - ** Change text used when a NULL comes back from the database. If ?STRING? - ** is not present, then the current string used for NULL is returned. - ** If STRING is present, then STRING is returned. - ** - */ - case DB_NULLVALUE: { - if( objc!=2 && objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "NULLVALUE"); - return TCL_ERROR; - } - if( objc==3 ){ - int len; - char *zNull = Tcl_GetStringFromObj(objv[2], &len); - if( pDb->zNull ){ - Tcl_Free(pDb->zNull); - } - if( zNull && len>0 ){ - pDb->zNull = Tcl_Alloc( len + 1 ); - memcpy(pDb->zNull, zNull, len); - pDb->zNull[len] = '\0'; - }else{ - pDb->zNull = 0; - } - } - Tcl_SetObjResult(interp, Tcl_NewStringObj(pDb->zNull, -1)); - break; - } - - /* - ** $db last_insert_rowid - ** - ** Return an integer which is the ROWID for the most recent insert. - */ - case DB_LAST_INSERT_ROWID: { - Tcl_Obj *pResult; - Tcl_WideInt rowid; - if( objc!=2 ){ - Tcl_WrongNumArgs(interp, 2, objv, ""); - return TCL_ERROR; - } - rowid = sqlite3_last_insert_rowid(pDb->db); - pResult = Tcl_GetObjResult(interp); - Tcl_SetWideIntObj(pResult, rowid); - break; - } - - /* - ** The DB_ONECOLUMN method is implemented together with DB_EXISTS. - */ - - /* $db progress ?N CALLBACK? - ** - ** Invoke the given callback every N virtual machine opcodes while executing - ** queries. - */ - case DB_PROGRESS: { - if( objc==2 ){ - if( pDb->zProgress ){ - Tcl_AppendResult(interp, pDb->zProgress, (char*)0); - } - }else if( objc==4 ){ - char *zProgress; - int len; - int N; - if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &N) ){ - return TCL_ERROR; - }; - if( pDb->zProgress ){ - Tcl_Free(pDb->zProgress); - } - zProgress = Tcl_GetStringFromObj(objv[3], &len); - if( zProgress && len>0 ){ - pDb->zProgress = Tcl_Alloc( len + 1 ); - memcpy(pDb->zProgress, zProgress, len+1); - }else{ - pDb->zProgress = 0; - } -#ifndef SQLITE_OMIT_PROGRESS_CALLBACK - if( pDb->zProgress ){ - pDb->interp = interp; - sqlite3_progress_handler(pDb->db, N, DbProgressHandler, pDb); - }else{ - sqlite3_progress_handler(pDb->db, 0, 0, 0); - } -#endif - }else{ - Tcl_WrongNumArgs(interp, 2, objv, "N CALLBACK"); - return TCL_ERROR; - } - break; - } - - /* $db profile ?CALLBACK? - ** - ** Make arrangements to invoke the CALLBACK routine after each SQL statement - ** that has run. The text of the SQL and the amount of elapse time are - ** appended to CALLBACK before the script is run. - */ - case DB_PROFILE: { - if( objc>3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?"); - return TCL_ERROR; - }else if( objc==2 ){ - if( pDb->zProfile ){ - Tcl_AppendResult(interp, pDb->zProfile, (char*)0); - } - }else{ - char *zProfile; - int len; - if( pDb->zProfile ){ - Tcl_Free(pDb->zProfile); - } - zProfile = Tcl_GetStringFromObj(objv[2], &len); - if( zProfile && len>0 ){ - pDb->zProfile = Tcl_Alloc( len + 1 ); - memcpy(pDb->zProfile, zProfile, len+1); - }else{ - pDb->zProfile = 0; - } -#if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT) - if( pDb->zProfile ){ - pDb->interp = interp; - sqlite3_profile(pDb->db, DbProfileHandler, pDb); - }else{ - sqlite3_profile(pDb->db, 0, 0); - } -#endif - } - break; - } - - /* - ** $db rekey KEY - ** - ** Change the encryption key on the currently open database. - */ - case DB_REKEY: { -#ifdef SQLITE_HAS_CODEC - int nKey; - void *pKey; -#endif - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "KEY"); - return TCL_ERROR; - } -#ifdef SQLITE_HAS_CODEC - pKey = Tcl_GetByteArrayFromObj(objv[2], &nKey); - rc = sqlite3_rekey(pDb->db, pKey, nKey); - if( rc ){ - Tcl_AppendResult(interp, sqlite3_errstr(rc), (char*)0); - rc = TCL_ERROR; - } -#endif - break; - } - - /* $db restore ?DATABASE? FILENAME - ** - ** Open a database file named FILENAME. Transfer the content - ** of FILENAME into the local database DATABASE (default: "main"). - */ - case DB_RESTORE: { - const char *zSrcFile; - const char *zDestDb; - sqlite3 *pSrc; - sqlite3_backup *pBackup; - int nTimeout = 0; - - if( objc==3 ){ - zDestDb = "main"; - zSrcFile = Tcl_GetString(objv[2]); - }else if( objc==4 ){ - zDestDb = Tcl_GetString(objv[2]); - zSrcFile = Tcl_GetString(objv[3]); - }else{ - Tcl_WrongNumArgs(interp, 2, objv, "?DATABASE? FILENAME"); - return TCL_ERROR; - } - rc = sqlite3_open_v2(zSrcFile, &pSrc, SQLITE_OPEN_READONLY, 0); - if( rc!=SQLITE_OK ){ - Tcl_AppendResult(interp, "cannot open source database: ", - sqlite3_errmsg(pSrc), (char*)0); - sqlite3_close(pSrc); - return TCL_ERROR; - } - pBackup = sqlite3_backup_init(pDb->db, zDestDb, pSrc, "main"); - if( pBackup==0 ){ - Tcl_AppendResult(interp, "restore failed: ", - sqlite3_errmsg(pDb->db), (char*)0); - sqlite3_close(pSrc); - return TCL_ERROR; - } - while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK - || rc==SQLITE_BUSY ){ - if( rc==SQLITE_BUSY ){ - if( nTimeout++ >= 3 ) break; - sqlite3_sleep(100); - } - } - sqlite3_backup_finish(pBackup); - if( rc==SQLITE_DONE ){ - rc = TCL_OK; - }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){ - Tcl_AppendResult(interp, "restore failed: source database busy", - (char*)0); - rc = TCL_ERROR; - }else{ - Tcl_AppendResult(interp, "restore failed: ", - sqlite3_errmsg(pDb->db), (char*)0); - rc = TCL_ERROR; - } - sqlite3_close(pSrc); - break; - } - - /* - ** $db status (step|sort|autoindex) - ** - ** Display SQLITE_STMTSTATUS_FULLSCAN_STEP or - ** SQLITE_STMTSTATUS_SORT for the most recent eval. - */ - case DB_STATUS: { - int v; - const char *zOp; - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "(step|sort|autoindex)"); - return TCL_ERROR; - } - zOp = Tcl_GetString(objv[2]); - if( strcmp(zOp, "step")==0 ){ - v = pDb->nStep; - }else if( strcmp(zOp, "sort")==0 ){ - v = pDb->nSort; - }else if( strcmp(zOp, "autoindex")==0 ){ - v = pDb->nIndex; - }else{ - Tcl_AppendResult(interp, - "bad argument: should be autoindex, step, or sort", - (char*)0); - return TCL_ERROR; - } - Tcl_SetObjResult(interp, Tcl_NewIntObj(v)); - break; - } - - /* - ** $db timeout MILLESECONDS - ** - ** Delay for the number of milliseconds specified when a file is locked. - */ - case DB_TIMEOUT: { - int ms; - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "MILLISECONDS"); - return TCL_ERROR; - } - if( Tcl_GetIntFromObj(interp, objv[2], &ms) ) return TCL_ERROR; - sqlite3_busy_timeout(pDb->db, ms); - break; - } - - /* - ** $db total_changes - ** - ** Return the number of rows that were modified, inserted, or deleted - ** since the database handle was created. - */ - case DB_TOTAL_CHANGES: { - Tcl_Obj *pResult; - if( objc!=2 ){ - Tcl_WrongNumArgs(interp, 2, objv, ""); - return TCL_ERROR; - } - pResult = Tcl_GetObjResult(interp); - Tcl_SetIntObj(pResult, sqlite3_total_changes(pDb->db)); - break; - } - - /* $db trace ?CALLBACK? - ** - ** Make arrangements to invoke the CALLBACK routine for each SQL statement - ** that is executed. The text of the SQL is appended to CALLBACK before - ** it is executed. - */ - case DB_TRACE: { - if( objc>3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?"); - return TCL_ERROR; - }else if( objc==2 ){ - if( pDb->zTrace ){ - Tcl_AppendResult(interp, pDb->zTrace, (char*)0); - } - }else{ - char *zTrace; - int len; - if( pDb->zTrace ){ - Tcl_Free(pDb->zTrace); - } - zTrace = Tcl_GetStringFromObj(objv[2], &len); - if( zTrace && len>0 ){ - pDb->zTrace = Tcl_Alloc( len + 1 ); - memcpy(pDb->zTrace, zTrace, len+1); - }else{ - pDb->zTrace = 0; - } -#if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT) - if( pDb->zTrace ){ - pDb->interp = interp; - sqlite3_trace(pDb->db, DbTraceHandler, pDb); - }else{ - sqlite3_trace(pDb->db, 0, 0); - } -#endif - } - break; - } - - /* $db transaction [-deferred|-immediate|-exclusive] SCRIPT - ** - ** Start a new transaction (if we are not already in the midst of a - ** transaction) and execute the TCL script SCRIPT. After SCRIPT - ** completes, either commit the transaction or roll it back if SCRIPT - ** throws an exception. Or if no new transation was started, do nothing. - ** pass the exception on up the stack. - ** - ** This command was inspired by Dave Thomas's talk on Ruby at the - ** 2005 O'Reilly Open Source Convention (OSCON). - */ - case DB_TRANSACTION: { - Tcl_Obj *pScript; - const char *zBegin = "SAVEPOINT _tcl_transaction"; - if( objc!=3 && objc!=4 ){ - Tcl_WrongNumArgs(interp, 2, objv, "[TYPE] SCRIPT"); - return TCL_ERROR; - } - - if( pDb->nTransaction==0 && objc==4 ){ - static const char *TTYPE_strs[] = { - "deferred", "exclusive", "immediate", 0 - }; - enum TTYPE_enum { - TTYPE_DEFERRED, TTYPE_EXCLUSIVE, TTYPE_IMMEDIATE - }; - int ttype; - if( Tcl_GetIndexFromObj(interp, objv[2], TTYPE_strs, "transaction type", - 0, &ttype) ){ - return TCL_ERROR; - } - switch( (enum TTYPE_enum)ttype ){ - case TTYPE_DEFERRED: /* no-op */; break; - case TTYPE_EXCLUSIVE: zBegin = "BEGIN EXCLUSIVE"; break; - case TTYPE_IMMEDIATE: zBegin = "BEGIN IMMEDIATE"; break; - } - } - pScript = objv[objc-1]; - - /* Run the SQLite BEGIN command to open a transaction or savepoint. */ - pDb->disableAuth++; - rc = sqlite3_exec(pDb->db, zBegin, 0, 0, 0); - pDb->disableAuth--; - if( rc!=SQLITE_OK ){ - Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), (char*)0); - return TCL_ERROR; - } - pDb->nTransaction++; - - /* If using NRE, schedule a callback to invoke the script pScript, then - ** a second callback to commit (or rollback) the transaction or savepoint - ** opened above. If not using NRE, evaluate the script directly, then - ** call function DbTransPostCmd() to commit (or rollback) the transaction - ** or savepoint. */ - if( DbUseNre() ){ - Tcl_NRAddCallback(interp, DbTransPostCmd, cd, 0, 0, 0); - (void)Tcl_NREvalObj(interp, pScript, 0); - }else{ - rc = DbTransPostCmd(&cd, interp, Tcl_EvalObjEx(interp, pScript, 0)); - } - break; - } - - /* - ** $db unlock_notify ?script? - */ - case DB_UNLOCK_NOTIFY: { -#ifndef SQLITE_ENABLE_UNLOCK_NOTIFY - Tcl_AppendResult(interp, "unlock_notify not available in this build", - (char*)0); - rc = TCL_ERROR; -#else - if( objc!=2 && objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?"); - rc = TCL_ERROR; - }else{ - void (*xNotify)(void **, int) = 0; - void *pNotifyArg = 0; - - if( pDb->pUnlockNotify ){ - Tcl_DecrRefCount(pDb->pUnlockNotify); - pDb->pUnlockNotify = 0; - } - - if( objc==3 ){ - xNotify = DbUnlockNotify; - pNotifyArg = (void *)pDb; - pDb->pUnlockNotify = objv[2]; - Tcl_IncrRefCount(pDb->pUnlockNotify); - } - - if( sqlite3_unlock_notify(pDb->db, xNotify, pNotifyArg) ){ - Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), (char*)0); - rc = TCL_ERROR; - } - } -#endif - break; - } - - /* - ** $db wal_hook ?script? - ** $db update_hook ?script? - ** $db rollback_hook ?script? - */ - case DB_WAL_HOOK: - case DB_UPDATE_HOOK: - case DB_ROLLBACK_HOOK: { - - /* set ppHook to point at pUpdateHook or pRollbackHook, depending on - ** whether [$db update_hook] or [$db rollback_hook] was invoked. - */ - Tcl_Obj **ppHook; - if( choice==DB_UPDATE_HOOK ){ - ppHook = &pDb->pUpdateHook; - }else if( choice==DB_WAL_HOOK ){ - ppHook = &pDb->pWalHook; - }else{ - ppHook = &pDb->pRollbackHook; - } - - if( objc!=2 && objc!=3 ){ - Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?"); - return TCL_ERROR; - } - if( *ppHook ){ - Tcl_SetObjResult(interp, *ppHook); - if( objc==3 ){ - Tcl_DecrRefCount(*ppHook); - *ppHook = 0; - } - } - if( objc==3 ){ - assert( !(*ppHook) ); - if( Tcl_GetCharLength(objv[2])>0 ){ - *ppHook = objv[2]; - Tcl_IncrRefCount(*ppHook); - } - } - - sqlite3_update_hook(pDb->db, (pDb->pUpdateHook?DbUpdateHandler:0), pDb); - sqlite3_rollback_hook(pDb->db,(pDb->pRollbackHook?DbRollbackHandler:0),pDb); - sqlite3_wal_hook(pDb->db,(pDb->pWalHook?DbWalHandler:0),pDb); - - break; - } - - /* $db version - ** - ** Return the version string for this database. - */ - case DB_VERSION: { - Tcl_SetResult(interp, (char *)sqlite3_libversion(), TCL_STATIC); - break; - } - - - } /* End of the SWITCH statement */ - return rc; -} - -#if SQLITE_TCL_NRE -/* -** Adaptor that provides an objCmd interface to the NRE-enabled -** interface implementation. -*/ -static int DbObjCmdAdaptor( - void *cd, - Tcl_Interp *interp, - int objc, - Tcl_Obj *const*objv -){ - return Tcl_NRCallObjProc(interp, DbObjCmd, cd, objc, objv); -} -#endif /* SQLITE_TCL_NRE */ - -/* -** sqlite3 DBNAME FILENAME ?-vfs VFSNAME? ?-key KEY? ?-readonly BOOLEAN? -** ?-create BOOLEAN? ?-nomutex BOOLEAN? -** -** This is the main Tcl command. When the "sqlite" Tcl command is -** invoked, this routine runs to process that command. -** -** The first argument, DBNAME, is an arbitrary name for a new -** database connection. This command creates a new command named -** DBNAME that is used to control that connection. The database -** connection is deleted when the DBNAME command is deleted. -** -** The second argument is the name of the database file. -** -*/ -static int DbMain(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){ - SqliteDb *p; - const char *zArg; - char *zErrMsg; - int i; - const char *zFile; - const char *zVfs = 0; - int flags; - Tcl_DString translatedFilename; -#ifdef SQLITE_HAS_CODEC - void *pKey = 0; - int nKey = 0; -#endif - int rc; - - /* In normal use, each TCL interpreter runs in a single thread. So - ** by default, we can turn of mutexing on SQLite database connections. - ** However, for testing purposes it is useful to have mutexes turned - ** on. So, by default, mutexes default off. But if compiled with - ** SQLITE_TCL_DEFAULT_FULLMUTEX then mutexes default on. - */ -#ifdef SQLITE_TCL_DEFAULT_FULLMUTEX - flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX; -#else - flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_NOMUTEX; -#endif - - if( objc==2 ){ - zArg = Tcl_GetStringFromObj(objv[1], 0); - if( strcmp(zArg,"-version")==0 ){ - Tcl_AppendResult(interp,sqlite3_libversion(), (char*)0); - return TCL_OK; - } - if( strcmp(zArg,"-has-codec")==0 ){ -#ifdef SQLITE_HAS_CODEC - Tcl_AppendResult(interp,"1",(char*)0); -#else - Tcl_AppendResult(interp,"0",(char*)0); -#endif - return TCL_OK; - } - } - for(i=3; i+1<objc; i+=2){ - zArg = Tcl_GetString(objv[i]); - if( strcmp(zArg,"-key")==0 ){ -#ifdef SQLITE_HAS_CODEC - pKey = Tcl_GetByteArrayFromObj(objv[i+1], &nKey); -#endif - }else if( strcmp(zArg, "-vfs")==0 ){ - zVfs = Tcl_GetString(objv[i+1]); - }else if( strcmp(zArg, "-readonly")==0 ){ - int b; - if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR; - if( b ){ - flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE); - flags |= SQLITE_OPEN_READONLY; - }else{ - flags &= ~SQLITE_OPEN_READONLY; - flags |= SQLITE_OPEN_READWRITE; - } - }else if( strcmp(zArg, "-create")==0 ){ - int b; - if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR; - if( b && (flags & SQLITE_OPEN_READONLY)==0 ){ - flags |= SQLITE_OPEN_CREATE; - }else{ - flags &= ~SQLITE_OPEN_CREATE; - } - }else if( strcmp(zArg, "-nomutex")==0 ){ - int b; - if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR; - if( b ){ - flags |= SQLITE_OPEN_NOMUTEX; - flags &= ~SQLITE_OPEN_FULLMUTEX; - }else{ - flags &= ~SQLITE_OPEN_NOMUTEX; - } - }else if( strcmp(zArg, "-fullmutex")==0 ){ - int b; - if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR; - if( b ){ - flags |= SQLITE_OPEN_FULLMUTEX; - flags &= ~SQLITE_OPEN_NOMUTEX; - }else{ - flags &= ~SQLITE_OPEN_FULLMUTEX; - } - }else if( strcmp(zArg, "-uri")==0 ){ - int b; - if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR; - if( b ){ - flags |= SQLITE_OPEN_URI; - }else{ - flags &= ~SQLITE_OPEN_URI; - } - }else{ - Tcl_AppendResult(interp, "unknown option: ", zArg, (char*)0); - return TCL_ERROR; - } - } - if( objc<3 || (objc&1)!=1 ){ - Tcl_WrongNumArgs(interp, 1, objv, - "HANDLE FILENAME ?-vfs VFSNAME? ?-readonly BOOLEAN? ?-create BOOLEAN?" - " ?-nomutex BOOLEAN? ?-fullmutex BOOLEAN? ?-uri BOOLEAN?" -#ifdef SQLITE_HAS_CODEC - " ?-key CODECKEY?" -#endif - ); - return TCL_ERROR; - } - zErrMsg = 0; - p = (SqliteDb*)Tcl_Alloc( sizeof(*p) ); - if( p==0 ){ - Tcl_SetResult(interp, (char *)"malloc failed", TCL_STATIC); - return TCL_ERROR; - } - memset(p, 0, sizeof(*p)); - zFile = Tcl_GetStringFromObj(objv[2], 0); - zFile = Tcl_TranslateFileName(interp, zFile, &translatedFilename); - rc = sqlite3_open_v2(zFile, &p->db, flags, zVfs); - Tcl_DStringFree(&translatedFilename); - if( p->db ){ - if( SQLITE_OK!=sqlite3_errcode(p->db) ){ - zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(p->db)); - sqlite3_close(p->db); - p->db = 0; - } - }else{ - zErrMsg = sqlite3_mprintf("%s", sqlite3_errstr(rc)); - } -#ifdef SQLITE_HAS_CODEC - if( p->db ){ - sqlite3_key(p->db, pKey, nKey); - } -#endif - if( p->db==0 ){ - Tcl_SetResult(interp, zErrMsg, TCL_VOLATILE); - Tcl_Free((char*)p); - sqlite3_free(zErrMsg); - return TCL_ERROR; - } - p->maxStmt = NUM_PREPARED_STMTS; - p->interp = interp; - zArg = Tcl_GetStringFromObj(objv[1], 0); - if( DbUseNre() ){ - Tcl_NRCreateCommand(interp, zArg, DbObjCmdAdaptor, DbObjCmd, - (char*)p, DbDeleteCmd); - }else{ - Tcl_CreateObjCommand(interp, zArg, DbObjCmd, (char*)p, DbDeleteCmd); - } - return TCL_OK; -} - -/* -** Provide a dummy Tcl_InitStubs if we are using this as a static -** library. -*/ -#ifndef USE_TCL_STUBS -# undef Tcl_InitStubs -# define Tcl_InitStubs(a,b,c) TCL_VERSION -#endif - -/* -** Make sure we have a PACKAGE_VERSION macro defined. This will be -** defined automatically by the TEA makefile. But other makefiles -** do not define it. -*/ -#ifndef PACKAGE_VERSION -# define PACKAGE_VERSION SQLITE_VERSION -#endif - -/* -** Initialize this module. -** -** This Tcl module contains only a single new Tcl command named "sqlite". -** (Hence there is no namespace. There is no point in using a namespace -** if the extension only supplies one new name!) The "sqlite" command is -** used to open a new SQLite database. See the DbMain() routine above -** for additional information. -** -** The EXTERN macros are required by TCL in order to work on windows. -*/ -EXTERN int Sqlite3_Init(Tcl_Interp *interp){ - int rc = Tcl_InitStubs(interp, "8.4", 0) ? TCL_OK : TCL_ERROR; - if( rc==TCL_OK ){ - Tcl_CreateObjCommand(interp, "sqlite3", (Tcl_ObjCmdProc*)DbMain, 0, 0); -#ifndef SQLITE_3_SUFFIX_ONLY - /* The "sqlite" alias is undocumented. It is here only to support - ** legacy scripts. All new scripts should use only the "sqlite3" - ** command. */ - Tcl_CreateObjCommand(interp, "sqlite", (Tcl_ObjCmdProc*)DbMain, 0, 0); -#endif - rc = Tcl_PkgProvide(interp, "sqlite3", PACKAGE_VERSION); - } - return rc; -} -EXTERN int Tclsqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); } -EXTERN int Sqlite3_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; } -EXTERN int Tclsqlite3_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; } - -/* Because it accesses the file-system and uses persistent state, SQLite -** is not considered appropriate for safe interpreters. Hence, we deliberately -** omit the _SafeInit() interfaces. -*/ - -#ifndef SQLITE_3_SUFFIX_ONLY -int Sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); } -int Tclsqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); } -int Sqlite_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; } -int Tclsqlite_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; } -#endif - -#ifdef TCLSH -/***************************************************************************** -** All of the code that follows is used to build standalone TCL interpreters -** that are statically linked with SQLite. Enable these by compiling -** with -DTCLSH=n where n can be 1 or 2. An n of 1 generates a standard -** tclsh but with SQLite built in. An n of 2 generates the SQLite space -** analysis program. -*/ - -#if defined(SQLITE_TEST) || defined(SQLITE_TCLMD5) -/* - * This code implements the MD5 message-digest algorithm. - * The algorithm is due to Ron Rivest. This code was - * written by Colin Plumb in 1993, no copyright is claimed. - * This code is in the public domain; do with it what you wish. - * - * Equivalent code is available from RSA Data Security, Inc. - * This code has been tested against that, and is equivalent, - * except that you don't need to include two pages of legalese - * with every copy. - * - * To compute the message digest of a chunk of bytes, declare an - * MD5Context structure, pass it to MD5Init, call MD5Update as - * needed on buffers full of bytes, and then call MD5Final, which - * will fill a supplied 16-byte array with the digest. - */ - -/* - * If compiled on a machine that doesn't have a 32-bit integer, - * you just set "uint32" to the appropriate datatype for an - * unsigned 32-bit integer. For example: - * - * cc -Duint32='unsigned long' md5.c - * - */ -#ifndef uint32 -# define uint32 unsigned int -#endif - -struct MD5Context { - int isInit; - uint32 buf[4]; - uint32 bits[2]; - unsigned char in[64]; -}; -typedef struct MD5Context MD5Context; - -/* - * Note: this code is harmless on little-endian machines. - */ -static void byteReverse (unsigned char *buf, unsigned longs){ - uint32 t; - do { - t = (uint32)((unsigned)buf[3]<<8 | buf[2]) << 16 | - ((unsigned)buf[1]<<8 | buf[0]); - *(uint32 *)buf = t; - buf += 4; - } while (--longs); -} -/* The four core functions - F1 is optimized somewhat */ - -/* #define F1(x, y, z) (x & y | ~x & z) */ -#define F1(x, y, z) (z ^ (x & (y ^ z))) -#define F2(x, y, z) F1(z, x, y) -#define F3(x, y, z) (x ^ y ^ z) -#define F4(x, y, z) (y ^ (x | ~z)) - -/* This is the central step in the MD5 algorithm. */ -#define MD5STEP(f, w, x, y, z, data, s) \ - ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) - -/* - * The core of the MD5 algorithm, this alters an existing MD5 hash to - * reflect the addition of 16 longwords of new data. MD5Update blocks - * the data and converts bytes into longwords for this routine. - */ -static void MD5Transform(uint32 buf[4], const uint32 in[16]){ - register uint32 a, b, c, d; - - a = buf[0]; - b = buf[1]; - c = buf[2]; - d = buf[3]; - - MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478, 7); - MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12); - MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17); - MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22); - MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf, 7); - MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12); - MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17); - MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22); - MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8, 7); - MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12); - MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17); - MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22); - MD5STEP(F1, a, b, c, d, in[12]+0x6b901122, 7); - MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12); - MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17); - MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22); - - MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562, 5); - MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340, 9); - MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14); - MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20); - MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d, 5); - MD5STEP(F2, d, a, b, c, in[10]+0x02441453, 9); - MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14); - MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20); - MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6, 5); - MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6, 9); - MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14); - MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20); - MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905, 5); - MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8, 9); - MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14); - MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20); - - MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942, 4); - MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11); - MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16); - MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23); - MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44, 4); - MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11); - MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16); - MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23); - MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6, 4); - MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11); - MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16); - MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23); - MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039, 4); - MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11); - MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16); - MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23); - - MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244, 6); - MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10); - MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15); - MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21); - MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3, 6); - MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10); - MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15); - MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21); - MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f, 6); - MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10); - MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15); - MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21); - MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82, 6); - MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10); - MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15); - MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21); - - buf[0] += a; - buf[1] += b; - buf[2] += c; - buf[3] += d; -} - -/* - * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious - * initialization constants. - */ -static void MD5Init(MD5Context *ctx){ - ctx->isInit = 1; - ctx->buf[0] = 0x67452301; - ctx->buf[1] = 0xefcdab89; - ctx->buf[2] = 0x98badcfe; - ctx->buf[3] = 0x10325476; - ctx->bits[0] = 0; - ctx->bits[1] = 0; -} - -/* - * Update context to reflect the concatenation of another buffer full - * of bytes. - */ -static -void MD5Update(MD5Context *ctx, const unsigned char *buf, unsigned int len){ - uint32 t; - - /* Update bitcount */ - - t = ctx->bits[0]; - if ((ctx->bits[0] = t + ((uint32)len << 3)) < t) - ctx->bits[1]++; /* Carry from low to high */ - ctx->bits[1] += len >> 29; - - t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ - - /* Handle any leading odd-sized chunks */ - - if ( t ) { - unsigned char *p = (unsigned char *)ctx->in + t; - - t = 64-t; - if (len < t) { - memcpy(p, buf, len); - return; - } - memcpy(p, buf, t); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32 *)ctx->in); - buf += t; - len -= t; - } - - /* Process data in 64-byte chunks */ - - while (len >= 64) { - memcpy(ctx->in, buf, 64); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32 *)ctx->in); - buf += 64; - len -= 64; - } - - /* Handle any remaining bytes of data. */ - - memcpy(ctx->in, buf, len); -} - -/* - * Final wrapup - pad to 64-byte boundary with the bit pattern - * 1 0* (64-bit count of bits processed, MSB-first) - */ -static void MD5Final(unsigned char digest[16], MD5Context *ctx){ - unsigned count; - unsigned char *p; - - /* Compute number of bytes mod 64 */ - count = (ctx->bits[0] >> 3) & 0x3F; - - /* Set the first char of padding to 0x80. This is safe since there is - always at least one byte free */ - p = ctx->in + count; - *p++ = 0x80; - - /* Bytes of padding needed to make 64 bytes */ - count = 64 - 1 - count; - - /* Pad out to 56 mod 64 */ - if (count < 8) { - /* Two lots of padding: Pad the first block to 64 bytes */ - memset(p, 0, count); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32 *)ctx->in); - - /* Now fill the next block with 56 bytes */ - memset(ctx->in, 0, 56); - } else { - /* Pad block to 56 bytes */ - memset(p, 0, count-8); - } - byteReverse(ctx->in, 14); - - /* Append length in bits and transform */ - memcpy(ctx->in + 14*4, ctx->bits, 8); - - MD5Transform(ctx->buf, (uint32 *)ctx->in); - byteReverse((unsigned char *)ctx->buf, 4); - memcpy(digest, ctx->buf, 16); -} - -/* -** Convert a 128-bit MD5 digest into a 32-digit base-16 number. -*/ -static void MD5DigestToBase16(unsigned char *digest, char *zBuf){ - static char const zEncode[] = "0123456789abcdef"; - int i, j; - - for(j=i=0; i<16; i++){ - int a = digest[i]; - zBuf[j++] = zEncode[(a>>4)&0xf]; - zBuf[j++] = zEncode[a & 0xf]; - } - zBuf[j] = 0; -} - - -/* -** Convert a 128-bit MD5 digest into sequency of eight 5-digit integers -** each representing 16 bits of the digest and separated from each -** other by a "-" character. -*/ -static void MD5DigestToBase10x8(unsigned char digest[16], char zDigest[50]){ - int i, j; - unsigned int x; - for(i=j=0; i<16; i+=2){ - x = digest[i]*256 + digest[i+1]; - if( i>0 ) zDigest[j++] = '-'; - sqlite3_snprintf(50-j, &zDigest[j], "%05u", x); - j += 5; - } - zDigest[j] = 0; -} - -/* -** A TCL command for md5. The argument is the text to be hashed. The -** Result is the hash in base64. -*/ -static int md5_cmd(void*cd, Tcl_Interp *interp, int argc, const char **argv){ - MD5Context ctx; - unsigned char digest[16]; - char zBuf[50]; - void (*converter)(unsigned char*, char*); - - if( argc!=2 ){ - Tcl_AppendResult(interp,"wrong # args: should be \"", argv[0], - " TEXT\"", (char*)0); - return TCL_ERROR; - } - MD5Init(&ctx); - MD5Update(&ctx, (unsigned char*)argv[1], (unsigned)strlen(argv[1])); - MD5Final(digest, &ctx); - converter = (void(*)(unsigned char*,char*))cd; - converter(digest, zBuf); - Tcl_AppendResult(interp, zBuf, (char*)0); - return TCL_OK; -} - -/* -** A TCL command to take the md5 hash of a file. The argument is the -** name of the file. -*/ -static int md5file_cmd(void*cd, Tcl_Interp*interp, int argc, const char **argv){ - FILE *in; - MD5Context ctx; - void (*converter)(unsigned char*, char*); - unsigned char digest[16]; - char zBuf[10240]; - - if( argc!=2 ){ - Tcl_AppendResult(interp,"wrong # args: should be \"", argv[0], - " FILENAME\"", (char*)0); - return TCL_ERROR; - } - in = fopen(argv[1],"rb"); - if( in==0 ){ - Tcl_AppendResult(interp,"unable to open file \"", argv[1], - "\" for reading", (char*)0); - return TCL_ERROR; - } - MD5Init(&ctx); - for(;;){ - int n; - n = (int)fread(zBuf, 1, sizeof(zBuf), in); - if( n<=0 ) break; - MD5Update(&ctx, (unsigned char*)zBuf, (unsigned)n); - } - fclose(in); - MD5Final(digest, &ctx); - converter = (void(*)(unsigned char*,char*))cd; - converter(digest, zBuf); - Tcl_AppendResult(interp, zBuf, (char*)0); - return TCL_OK; -} - -/* -** Register the four new TCL commands for generating MD5 checksums -** with the TCL interpreter. -*/ -int Md5_Init(Tcl_Interp *interp){ - Tcl_CreateCommand(interp, "md5", (Tcl_CmdProc*)md5_cmd, - MD5DigestToBase16, 0); - Tcl_CreateCommand(interp, "md5-10x8", (Tcl_CmdProc*)md5_cmd, - MD5DigestToBase10x8, 0); - Tcl_CreateCommand(interp, "md5file", (Tcl_CmdProc*)md5file_cmd, - MD5DigestToBase16, 0); - Tcl_CreateCommand(interp, "md5file-10x8", (Tcl_CmdProc*)md5file_cmd, - MD5DigestToBase10x8, 0); - return TCL_OK; -} -#endif /* defined(SQLITE_TEST) || defined(SQLITE_TCLMD5) */ - -#if defined(SQLITE_TEST) -/* -** During testing, the special md5sum() aggregate function is available. -** inside SQLite. The following routines implement that function. -*/ -static void md5step(sqlite3_context *context, int argc, sqlite3_value **argv){ - MD5Context *p; - int i; - if( argc<1 ) return; - p = sqlite3_aggregate_context(context, sizeof(*p)); - if( p==0 ) return; - if( !p->isInit ){ - MD5Init(p); - } - for(i=0; i<argc; i++){ - const char *zData = (char*)sqlite3_value_text(argv[i]); - if( zData ){ - MD5Update(p, (unsigned char*)zData, (int)strlen(zData)); - } - } -} -static void md5finalize(sqlite3_context *context){ - MD5Context *p; - unsigned char digest[16]; - char zBuf[33]; - p = sqlite3_aggregate_context(context, sizeof(*p)); - MD5Final(digest,p); - MD5DigestToBase16(digest, zBuf); - sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT); -} -int Md5_Register(sqlite3 *db){ - int rc = sqlite3_create_function(db, "md5sum", -1, SQLITE_UTF8, 0, 0, - md5step, md5finalize); - sqlite3_overload_function(db, "md5sum", -1); /* To exercise this API */ - return rc; -} -#endif /* defined(SQLITE_TEST) */ - - -/* -** If the macro TCLSH is one, then put in code this for the -** "main" routine that will initialize Tcl and take input from -** standard input, or if a file is named on the command line -** the TCL interpreter reads and evaluates that file. -*/ -#if TCLSH==1 -static const char *tclsh_main_loop(void){ - static const char zMainloop[] = - "set line {}\n" - "while {![eof stdin]} {\n" - "if {$line!=\"\"} {\n" - "puts -nonewline \"> \"\n" - "} else {\n" - "puts -nonewline \"% \"\n" - "}\n" - "flush stdout\n" - "append line [gets stdin]\n" - "if {[info complete $line]} {\n" - "if {[catch {uplevel #0 $line} result]} {\n" - "puts stderr \"Error: $result\"\n" - "} elseif {$result!=\"\"} {\n" - "puts $result\n" - "}\n" - "set line {}\n" - "} else {\n" - "append line \\n\n" - "}\n" - "}\n" - ; - return zMainloop; -} -#endif -#if TCLSH==2 -static const char *tclsh_main_loop(void); -#endif - -#ifdef SQLITE_TEST -static void init_all(Tcl_Interp *); -static int init_all_cmd( - ClientData cd, - Tcl_Interp *interp, - int objc, - Tcl_Obj *CONST objv[] -){ - - Tcl_Interp *slave; - if( objc!=2 ){ - Tcl_WrongNumArgs(interp, 1, objv, "SLAVE"); - return TCL_ERROR; - } - - slave = Tcl_GetSlave(interp, Tcl_GetString(objv[1])); - if( !slave ){ - return TCL_ERROR; - } - - init_all(slave); - return TCL_OK; -} - -/* -** Tclcmd: db_use_legacy_prepare DB BOOLEAN -** -** The first argument to this command must be a database command created by -** [sqlite3]. If the second argument is true, then the handle is configured -** to use the sqlite3_prepare_v2() function to prepare statements. If it -** is false, sqlite3_prepare(). -*/ -static int db_use_legacy_prepare_cmd( - ClientData cd, - Tcl_Interp *interp, - int objc, - Tcl_Obj *CONST objv[] -){ - Tcl_CmdInfo cmdInfo; - SqliteDb *pDb; - int bPrepare; - - if( objc!=3 ){ - Tcl_WrongNumArgs(interp, 1, objv, "DB BOOLEAN"); - return TCL_ERROR; - } - - if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){ - Tcl_AppendResult(interp, "no such db: ", Tcl_GetString(objv[1]), (char*)0); - return TCL_ERROR; - } - pDb = (SqliteDb*)cmdInfo.objClientData; - if( Tcl_GetBooleanFromObj(interp, objv[2], &bPrepare) ){ - return TCL_ERROR; - } - - pDb->bLegacyPrepare = bPrepare; - - Tcl_ResetResult(interp); - return TCL_OK; -} - -/* -** Tclcmd: db_last_stmt_ptr DB -** -** If the statement cache associated with database DB is not empty, -** return the text representation of the most recently used statement -** handle. -*/ -static int db_last_stmt_ptr( - ClientData cd, - Tcl_Interp *interp, - int objc, - Tcl_Obj *CONST objv[] -){ - extern int sqlite3TestMakePointerStr(Tcl_Interp*, char*, void*); - Tcl_CmdInfo cmdInfo; - SqliteDb *pDb; - sqlite3_stmt *pStmt = 0; - char zBuf[100]; - - if( objc!=2 ){ - Tcl_WrongNumArgs(interp, 1, objv, "DB"); - return TCL_ERROR; - } - - if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){ - Tcl_AppendResult(interp, "no such db: ", Tcl_GetString(objv[1]), (char*)0); - return TCL_ERROR; - } - pDb = (SqliteDb*)cmdInfo.objClientData; - - if( pDb->stmtList ) pStmt = pDb->stmtList->pStmt; - if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ){ - return TCL_ERROR; - } - Tcl_SetResult(interp, zBuf, TCL_VOLATILE); - - return TCL_OK; -} -#endif /* SQLITE_TEST */ - -/* -** Configure the interpreter passed as the first argument to have access -** to the commands and linked variables that make up: -** -** * the [sqlite3] extension itself, -** -** * If SQLITE_TCLMD5 or SQLITE_TEST is defined, the Md5 commands, and -** -** * If SQLITE_TEST is set, the various test interfaces used by the Tcl -** test suite. -*/ -static void init_all(Tcl_Interp *interp){ - Sqlite3_Init(interp); - -#if defined(SQLITE_TEST) || defined(SQLITE_TCLMD5) - Md5_Init(interp); -#endif - -#ifdef SQLITE_TEST - { - extern int Sqliteconfig_Init(Tcl_Interp*); - extern int Sqlitetest1_Init(Tcl_Interp*); - extern int Sqlitetest2_Init(Tcl_Interp*); - extern int Sqlitetest3_Init(Tcl_Interp*); - extern int Sqlitetest4_Init(Tcl_Interp*); - extern int Sqlitetest5_Init(Tcl_Interp*); - extern int Sqlitetest6_Init(Tcl_Interp*); - extern int Sqlitetest7_Init(Tcl_Interp*); - extern int Sqlitetest8_Init(Tcl_Interp*); - extern int Sqlitetest9_Init(Tcl_Interp*); - extern int Sqlitetestasync_Init(Tcl_Interp*); - extern int Sqlitetest_autoext_Init(Tcl_Interp*); - extern int Sqlitetest_blob_Init(Tcl_Interp*); - extern int Sqlitetest_demovfs_Init(Tcl_Interp *); - extern int Sqlitetest_func_Init(Tcl_Interp*); - extern int Sqlitetest_hexio_Init(Tcl_Interp*); - extern int Sqlitetest_init_Init(Tcl_Interp*); - extern int Sqlitetest_malloc_Init(Tcl_Interp*); - extern int Sqlitetest_mutex_Init(Tcl_Interp*); - extern int Sqlitetestschema_Init(Tcl_Interp*); - extern int Sqlitetestsse_Init(Tcl_Interp*); - extern int Sqlitetesttclvar_Init(Tcl_Interp*); - extern int Sqlitetestfs_Init(Tcl_Interp*); - extern int SqlitetestThread_Init(Tcl_Interp*); - extern int SqlitetestOnefile_Init(); - extern int SqlitetestOsinst_Init(Tcl_Interp*); - extern int Sqlitetestbackup_Init(Tcl_Interp*); - extern int Sqlitetestintarray_Init(Tcl_Interp*); - extern int Sqlitetestvfs_Init(Tcl_Interp *); - extern int Sqlitetestrtree_Init(Tcl_Interp*); - extern int Sqlitequota_Init(Tcl_Interp*); - extern int Sqlitemultiplex_Init(Tcl_Interp*); - extern int SqliteSuperlock_Init(Tcl_Interp*); - extern int SqlitetestSyscall_Init(Tcl_Interp*); - extern int Fts5tcl_Init(Tcl_Interp *); - extern int SqliteRbu_Init(Tcl_Interp*); -#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) - extern int Sqlitetestfts3_Init(Tcl_Interp *interp); -#endif - -#ifdef SQLITE_ENABLE_ZIPVFS - extern int Zipvfs_Init(Tcl_Interp*); - Zipvfs_Init(interp); -#endif - - Sqliteconfig_Init(interp); - Sqlitetest1_Init(interp); - Sqlitetest2_Init(interp); - Sqlitetest3_Init(interp); - Sqlitetest4_Init(interp); - Sqlitetest5_Init(interp); - Sqlitetest6_Init(interp); - Sqlitetest7_Init(interp); - Sqlitetest8_Init(interp); - Sqlitetest9_Init(interp); - Sqlitetestasync_Init(interp); - Sqlitetest_autoext_Init(interp); - Sqlitetest_blob_Init(interp); - Sqlitetest_demovfs_Init(interp); - Sqlitetest_func_Init(interp); - Sqlitetest_hexio_Init(interp); - Sqlitetest_init_Init(interp); - Sqlitetest_malloc_Init(interp); - Sqlitetest_mutex_Init(interp); - Sqlitetestschema_Init(interp); - Sqlitetesttclvar_Init(interp); - Sqlitetestfs_Init(interp); - SqlitetestThread_Init(interp); - SqlitetestOnefile_Init(interp); - SqlitetestOsinst_Init(interp); - Sqlitetestbackup_Init(interp); - Sqlitetestintarray_Init(interp); - Sqlitetestvfs_Init(interp); - Sqlitetestrtree_Init(interp); - Sqlitequota_Init(interp); - Sqlitemultiplex_Init(interp); - SqliteSuperlock_Init(interp); - SqlitetestSyscall_Init(interp); - Fts5tcl_Init(interp); - SqliteRbu_Init(interp); - -#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) - Sqlitetestfts3_Init(interp); -#endif - - Tcl_CreateObjCommand( - interp, "load_testfixture_extensions", init_all_cmd, 0, 0 - ); - Tcl_CreateObjCommand( - interp, "db_use_legacy_prepare", db_use_legacy_prepare_cmd, 0, 0 - ); - Tcl_CreateObjCommand( - interp, "db_last_stmt_ptr", db_last_stmt_ptr, 0, 0 - ); - -#ifdef SQLITE_SSE - Sqlitetestsse_Init(interp); -#endif - } -#endif -} - -/* Needed for the setrlimit() system call on unix */ -#if defined(unix) -#include <sys/resource.h> -#endif - -#define TCLSH_MAIN main /* Needed to fake out mktclapp */ -int TCLSH_MAIN(int argc, char **argv){ - Tcl_Interp *interp; - -#if !defined(_WIN32_WCE) - if( getenv("BREAK") ){ - fprintf(stderr, - "attach debugger to process %d and press any key to continue.\n", - GETPID()); - fgetc(stdin); - } -#endif - - /* Since the primary use case for this binary is testing of SQLite, - ** be sure to generate core files if we crash */ -#if defined(SQLITE_TEST) && defined(unix) - { struct rlimit x; - getrlimit(RLIMIT_CORE, &x); - x.rlim_cur = x.rlim_max; - setrlimit(RLIMIT_CORE, &x); - } -#endif /* SQLITE_TEST && unix */ - - - /* Call sqlite3_shutdown() once before doing anything else. This is to - ** test that sqlite3_shutdown() can be safely called by a process before - ** sqlite3_initialize() is. */ - sqlite3_shutdown(); - - Tcl_FindExecutable(argv[0]); - Tcl_SetSystemEncoding(NULL, "utf-8"); - interp = Tcl_CreateInterp(); - -#if TCLSH==2 - sqlite3_config(SQLITE_CONFIG_SINGLETHREAD); -#endif - - init_all(interp); - if( argc>=2 ){ - int i; - char zArgc[32]; - sqlite3_snprintf(sizeof(zArgc), zArgc, "%d", argc-(3-TCLSH)); - Tcl_SetVar(interp,"argc", zArgc, TCL_GLOBAL_ONLY); - Tcl_SetVar(interp,"argv0",argv[1],TCL_GLOBAL_ONLY); - Tcl_SetVar(interp,"argv", "", TCL_GLOBAL_ONLY); - for(i=3-TCLSH; i<argc; i++){ - Tcl_SetVar(interp, "argv", argv[i], - TCL_GLOBAL_ONLY | TCL_LIST_ELEMENT | TCL_APPEND_VALUE); - } - if( TCLSH==1 && Tcl_EvalFile(interp, argv[1])!=TCL_OK ){ - const char *zInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY); - if( zInfo==0 ) zInfo = Tcl_GetStringResult(interp); - fprintf(stderr,"%s: %s\n", *argv, zInfo); - return 1; - } - } - if( TCLSH==2 || argc<=1 ){ - Tcl_GlobalEval(interp, tclsh_main_loop()); - } - return 0; -} -#endif /* TCLSH */ |