4 ** The author disclaims copyright to this source code. In place of
5 ** a legal notice, here is a blessing:
7 ** May you do good and not evil.
8 ** May you find forgiveness for yourself and forgive others.
9 ** May you share freely, never taking more than you give.
11 *************************************************************************
12 ** A TCL Interface to SQLite. Append this file to sqlite3.c and
13 ** compile the whole thing to build a TCL-enabled version of SQLite.
15 ** Compile-time options:
17 ** -DTCLSH=1 Add a "main()" routine that works as a tclsh.
19 ** -DSQLITE_TCLMD5 When used in conjuction with -DTCLSH=1, add
20 ** four new commands to the TCL interpreter for
21 ** generating MD5 checksums: md5, md5file,
22 ** md5-10x8, and md5file-10x8.
24 ** -DSQLITE_TEST When used in conjuction with -DTCLSH=1, add
25 ** hundreds of new commands used for testing
26 ** SQLite. This option implies -DSQLITE_TCLMD5.
32 ** Some additional include files are needed if this file is not
33 ** appended to the amalgamation.
35 #ifndef SQLITE_AMALGAMATION
40 typedef unsigned char u8;
45 * Windows needs to know which symbols to export. Unix does not.
46 * BUILD_sqlite should be undefined for Unix.
49 #undef TCL_STORAGE_CLASS
50 #define TCL_STORAGE_CLASS DLLEXPORT
51 #endif /* BUILD_sqlite */
53 #define NUM_PREPARED_STMTS 10
54 #define MAX_PREPARED_STMTS 100
57 ** If TCL uses UTF-8 and SQLite is configured to use iso8859, then we
58 ** have to do a translation when going between the two. Set the
59 ** UTF_TRANSLATION_NEEDED macro to indicate that we need to do
62 #if defined(TCL_UTF_MAX) && !defined(SQLITE_UTF8)
63 # define UTF_TRANSLATION_NEEDED 1
67 ** New SQL functions can be created as TCL scripts. Each such function
68 ** is described by an instance of the following structure.
70 typedef struct SqlFunc SqlFunc;
72 Tcl_Interp *interp; /* The TCL interpret to execute the function */
73 Tcl_Obj *pScript; /* The Tcl_Obj representation of the script */
74 int useEvalObjv; /* True if it is safe to use Tcl_EvalObjv */
75 char *zName; /* Name of this function */
76 SqlFunc *pNext; /* Next function on the list of them all */
80 ** New collation sequences function can be created as TCL scripts. Each such
81 ** function is described by an instance of the following structure.
83 typedef struct SqlCollate SqlCollate;
85 Tcl_Interp *interp; /* The TCL interpret to execute the function */
86 char *zScript; /* The script to be run */
87 SqlCollate *pNext; /* Next function on the list of them all */
91 ** Prepared statements are cached for faster execution. Each prepared
92 ** statement is described by an instance of the following structure.
94 typedef struct SqlPreparedStmt SqlPreparedStmt;
95 struct SqlPreparedStmt {
96 SqlPreparedStmt *pNext; /* Next in linked list */
97 SqlPreparedStmt *pPrev; /* Previous on the list */
98 sqlite3_stmt *pStmt; /* The prepared statement */
99 int nSql; /* chars in zSql[] */
100 const char *zSql; /* Text of the SQL statement */
101 int nParm; /* Size of apParm array */
102 Tcl_Obj **apParm; /* Array of referenced object pointers */
105 typedef struct IncrblobChannel IncrblobChannel;
108 ** There is one instance of this structure for each SQLite database
109 ** that has been opened by the SQLite TCL interface.
111 typedef struct SqliteDb SqliteDb;
113 sqlite3 *db; /* The "real" database structure. MUST BE FIRST */
114 Tcl_Interp *interp; /* The interpreter used for this database */
115 char *zBusy; /* The busy callback routine */
116 char *zCommit; /* The commit hook callback routine */
117 char *zTrace; /* The trace callback routine */
118 char *zProfile; /* The profile callback routine */
119 char *zProgress; /* The progress callback routine */
120 char *zAuth; /* The authorization callback routine */
121 int disableAuth; /* Disable the authorizer if it exists */
122 char *zNull; /* Text to substitute for an SQL NULL value */
123 SqlFunc *pFunc; /* List of SQL functions */
124 Tcl_Obj *pUpdateHook; /* Update hook script (if any) */
125 Tcl_Obj *pRollbackHook; /* Rollback hook script (if any) */
126 Tcl_Obj *pWalHook; /* WAL hook script (if any) */
127 Tcl_Obj *pUnlockNotify; /* Unlock notify script (if any) */
128 SqlCollate *pCollate; /* List of SQL collation functions */
129 int rc; /* Return code of most recent sqlite3_exec() */
130 Tcl_Obj *pCollateNeeded; /* Collation needed script */
131 SqlPreparedStmt *stmtList; /* List of prepared statements*/
132 SqlPreparedStmt *stmtLast; /* Last statement in the list */
133 int maxStmt; /* The next maximum number of stmtList */
134 int nStmt; /* Number of statements in stmtList */
135 IncrblobChannel *pIncrblob;/* Linked list of open incrblob channels */
136 int nStep, nSort, nIndex; /* Statistics for most recent operation */
137 int nTransaction; /* Number of nested [transaction] methods */
140 struct IncrblobChannel {
141 sqlite3_blob *pBlob; /* sqlite3 blob handle */
142 SqliteDb *pDb; /* Associated database connection */
143 int iSeek; /* Current seek offset */
144 Tcl_Channel channel; /* Channel identifier */
145 IncrblobChannel *pNext; /* Linked list of all open incrblob channels */
146 IncrblobChannel *pPrev; /* Linked list of all open incrblob channels */
150 ** Compute a string length that is limited to what can be stored in
151 ** lower 30 bits of a 32-bit signed integer.
153 static int strlen30(const char *z){
155 while( *z2 ){ z2++; }
156 return 0x3fffffff & (int)(z2 - z);
160 #ifndef SQLITE_OMIT_INCRBLOB
162 ** Close all incrblob channels opened using database connection pDb.
163 ** This is called when shutting down the database connection.
165 static void closeIncrblobChannels(SqliteDb *pDb){
167 IncrblobChannel *pNext;
169 for(p=pDb->pIncrblob; p; p=pNext){
172 /* Note: Calling unregister here call Tcl_Close on the incrblob channel,
173 ** which deletes the IncrblobChannel structure at *p. So do not
174 ** call Tcl_Free() here.
176 Tcl_UnregisterChannel(pDb->interp, p->channel);
181 ** Close an incremental blob channel.
183 static int incrblobClose(ClientData instanceData, Tcl_Interp *interp){
184 IncrblobChannel *p = (IncrblobChannel *)instanceData;
185 int rc = sqlite3_blob_close(p->pBlob);
186 sqlite3 *db = p->pDb->db;
188 /* Remove the channel from the SqliteDb.pIncrblob list. */
190 p->pNext->pPrev = p->pPrev;
193 p->pPrev->pNext = p->pNext;
195 if( p->pDb->pIncrblob==p ){
196 p->pDb->pIncrblob = p->pNext;
199 /* Free the IncrblobChannel structure */
203 Tcl_SetResult(interp, (char *)sqlite3_errmsg(db), TCL_VOLATILE);
210 ** Read data from an incremental blob channel.
212 static int incrblobInput(
213 ClientData instanceData,
218 IncrblobChannel *p = (IncrblobChannel *)instanceData;
219 int nRead = bufSize; /* Number of bytes to read */
220 int nBlob; /* Total size of the blob */
221 int rc; /* sqlite error code */
223 nBlob = sqlite3_blob_bytes(p->pBlob);
224 if( (p->iSeek+nRead)>nBlob ){
225 nRead = nBlob-p->iSeek;
231 rc = sqlite3_blob_read(p->pBlob, (void *)buf, nRead, p->iSeek);
242 ** Write data to an incremental blob channel.
244 static int incrblobOutput(
245 ClientData instanceData,
250 IncrblobChannel *p = (IncrblobChannel *)instanceData;
251 int nWrite = toWrite; /* Number of bytes to write */
252 int nBlob; /* Total size of the blob */
253 int rc; /* sqlite error code */
255 nBlob = sqlite3_blob_bytes(p->pBlob);
256 if( (p->iSeek+nWrite)>nBlob ){
257 *errorCodePtr = EINVAL;
264 rc = sqlite3_blob_write(p->pBlob, (void *)buf, nWrite, p->iSeek);
275 ** Seek an incremental blob channel.
277 static int incrblobSeek(
278 ClientData instanceData,
283 IncrblobChannel *p = (IncrblobChannel *)instanceData;
293 p->iSeek = sqlite3_blob_bytes(p->pBlob) + offset;
296 default: assert(!"Bad seekMode");
303 static void incrblobWatch(ClientData instanceData, int mode){
306 static int incrblobHandle(ClientData instanceData, int dir, ClientData *hPtr){
310 static Tcl_ChannelType IncrblobChannelType = {
311 "incrblob", /* typeName */
312 TCL_CHANNEL_VERSION_2, /* version */
313 incrblobClose, /* closeProc */
314 incrblobInput, /* inputProc */
315 incrblobOutput, /* outputProc */
316 incrblobSeek, /* seekProc */
317 0, /* setOptionProc */
318 0, /* getOptionProc */
319 incrblobWatch, /* watchProc (this is a no-op) */
320 incrblobHandle, /* getHandleProc (always returns error) */
322 0, /* blockModeProc */
325 0, /* wideSeekProc */
329 ** Create a new incrblob channel.
331 static int createIncrblobChannel(
341 sqlite3 *db = pDb->db;
344 int flags = TCL_READABLE|(isReadonly ? 0 : TCL_WRITABLE);
346 /* This variable is used to name the channels: "incrblob_[incr count]" */
347 static int count = 0;
350 rc = sqlite3_blob_open(db, zDb, zTable, zColumn, iRow, !isReadonly, &pBlob);
352 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
356 p = (IncrblobChannel *)Tcl_Alloc(sizeof(IncrblobChannel));
360 sqlite3_snprintf(sizeof(zChannel), zChannel, "incrblob_%d", ++count);
361 p->channel = Tcl_CreateChannel(&IncrblobChannelType, zChannel, p, flags);
362 Tcl_RegisterChannel(interp, p->channel);
364 /* Link the new channel into the SqliteDb.pIncrblob list. */
365 p->pNext = pDb->pIncrblob;
373 Tcl_SetResult(interp, (char *)Tcl_GetChannelName(p->channel), TCL_VOLATILE);
376 #else /* else clause for "#ifndef SQLITE_OMIT_INCRBLOB" */
377 #define closeIncrblobChannels(pDb)
381 ** Look at the script prefix in pCmd. We will be executing this script
382 ** after first appending one or more arguments. This routine analyzes
383 ** the script to see if it is safe to use Tcl_EvalObjv() on the script
384 ** rather than the more general Tcl_EvalEx(). Tcl_EvalObjv() is much
387 ** Scripts that are safe to use with Tcl_EvalObjv() consists of a
388 ** command name followed by zero or more arguments with no [...] or $
389 ** or {...} or ; to be seen anywhere. Most callback scripts consist
390 ** of just a single procedure name and they meet this requirement.
392 static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){
393 /* We could try to do something with Tcl_Parse(). But we will instead
394 ** just do a search for forbidden characters. If any of the forbidden
395 ** characters appear in pCmd, we will report the string as unsafe.
399 z = Tcl_GetStringFromObj(pCmd, &n);
402 if( c=='$' || c=='[' || c==';' ) return 0;
408 ** Find an SqlFunc structure with the given name. Or create a new
409 ** one if an existing one cannot be found. Return a pointer to the
412 static SqlFunc *findSqlFunc(SqliteDb *pDb, const char *zName){
415 pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + strlen30(zName) + 1 );
416 pNew->zName = (char*)&pNew[1];
417 for(i=0; zName[i]; i++){ pNew->zName[i] = tolower(zName[i]); }
419 for(p=pDb->pFunc; p; p=p->pNext){
420 if( strcmp(p->zName, pNew->zName)==0 ){
421 Tcl_Free((char*)pNew);
425 pNew->interp = pDb->interp;
427 pNew->pNext = pDb->pFunc;
433 ** Finalize and free a list of prepared statements
435 static void flushStmtCache( SqliteDb *pDb ){
436 SqlPreparedStmt *pPreStmt;
438 while( pDb->stmtList ){
439 sqlite3_finalize( pDb->stmtList->pStmt );
440 pPreStmt = pDb->stmtList;
441 pDb->stmtList = pDb->stmtList->pNext;
442 Tcl_Free( (char*)pPreStmt );
449 ** TCL calls this procedure when an sqlite3 database command is
452 static void DbDeleteCmd(void *db){
453 SqliteDb *pDb = (SqliteDb*)db;
455 closeIncrblobChannels(pDb);
456 sqlite3_close(pDb->db);
458 SqlFunc *pFunc = pDb->pFunc;
459 pDb->pFunc = pFunc->pNext;
460 Tcl_DecrRefCount(pFunc->pScript);
461 Tcl_Free((char*)pFunc);
463 while( pDb->pCollate ){
464 SqlCollate *pCollate = pDb->pCollate;
465 pDb->pCollate = pCollate->pNext;
466 Tcl_Free((char*)pCollate);
469 Tcl_Free(pDb->zBusy);
472 Tcl_Free(pDb->zTrace);
475 Tcl_Free(pDb->zProfile);
478 Tcl_Free(pDb->zAuth);
481 Tcl_Free(pDb->zNull);
483 if( pDb->pUpdateHook ){
484 Tcl_DecrRefCount(pDb->pUpdateHook);
486 if( pDb->pRollbackHook ){
487 Tcl_DecrRefCount(pDb->pRollbackHook);
490 Tcl_DecrRefCount(pDb->pWalHook);
492 if( pDb->pCollateNeeded ){
493 Tcl_DecrRefCount(pDb->pCollateNeeded);
495 Tcl_Free((char*)pDb);
499 ** This routine is called when a database file is locked while trying
502 static int DbBusyHandler(void *cd, int nTries){
503 SqliteDb *pDb = (SqliteDb*)cd;
507 sqlite3_snprintf(sizeof(zVal), zVal, "%d", nTries);
508 rc = Tcl_VarEval(pDb->interp, pDb->zBusy, " ", zVal, (char*)0);
509 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
515 #ifndef SQLITE_OMIT_PROGRESS_CALLBACK
517 ** This routine is invoked as the 'progress callback' for the database.
519 static int DbProgressHandler(void *cd){
520 SqliteDb *pDb = (SqliteDb*)cd;
523 assert( pDb->zProgress );
524 rc = Tcl_Eval(pDb->interp, pDb->zProgress);
525 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
532 #ifndef SQLITE_OMIT_TRACE
534 ** This routine is called by the SQLite trace handler whenever a new
535 ** block of SQL is executed. The TCL script in pDb->zTrace is executed.
537 static void DbTraceHandler(void *cd, const char *zSql){
538 SqliteDb *pDb = (SqliteDb*)cd;
541 Tcl_DStringInit(&str);
542 Tcl_DStringAppend(&str, pDb->zTrace, -1);
543 Tcl_DStringAppendElement(&str, zSql);
544 Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
545 Tcl_DStringFree(&str);
546 Tcl_ResetResult(pDb->interp);
550 #ifndef SQLITE_OMIT_TRACE
552 ** This routine is called by the SQLite profile handler after a statement
553 ** SQL has executed. The TCL script in pDb->zProfile is evaluated.
555 static void DbProfileHandler(void *cd, const char *zSql, sqlite_uint64 tm){
556 SqliteDb *pDb = (SqliteDb*)cd;
560 sqlite3_snprintf(sizeof(zTm)-1, zTm, "%lld", tm);
561 Tcl_DStringInit(&str);
562 Tcl_DStringAppend(&str, pDb->zProfile, -1);
563 Tcl_DStringAppendElement(&str, zSql);
564 Tcl_DStringAppendElement(&str, zTm);
565 Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
566 Tcl_DStringFree(&str);
567 Tcl_ResetResult(pDb->interp);
572 ** This routine is called when a transaction is committed. The
573 ** TCL script in pDb->zCommit is executed. If it returns non-zero or
574 ** if it throws an exception, the transaction is rolled back instead
575 ** of being committed.
577 static int DbCommitHandler(void *cd){
578 SqliteDb *pDb = (SqliteDb*)cd;
581 rc = Tcl_Eval(pDb->interp, pDb->zCommit);
582 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
588 static void DbRollbackHandler(void *clientData){
589 SqliteDb *pDb = (SqliteDb*)clientData;
590 assert(pDb->pRollbackHook);
591 if( TCL_OK!=Tcl_EvalObjEx(pDb->interp, pDb->pRollbackHook, 0) ){
592 Tcl_BackgroundError(pDb->interp);
597 ** This procedure handles wal_hook callbacks.
599 static int DbWalHandler(
607 SqliteDb *pDb = (SqliteDb*)clientData;
608 Tcl_Interp *interp = pDb->interp;
609 assert(pDb->pWalHook);
611 p = Tcl_DuplicateObj(pDb->pWalHook);
613 Tcl_ListObjAppendElement(interp, p, Tcl_NewStringObj(zDb, -1));
614 Tcl_ListObjAppendElement(interp, p, Tcl_NewIntObj(nEntry));
615 if( TCL_OK!=Tcl_EvalObjEx(interp, p, 0)
616 || TCL_OK!=Tcl_GetIntFromObj(interp, Tcl_GetObjResult(interp), &ret)
618 Tcl_BackgroundError(interp);
625 #if defined(SQLITE_TEST) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)
626 static void setTestUnlockNotifyVars(Tcl_Interp *interp, int iArg, int nArg){
628 sprintf(zBuf, "%d", iArg);
629 Tcl_SetVar(interp, "sqlite_unlock_notify_arg", zBuf, TCL_GLOBAL_ONLY);
630 sprintf(zBuf, "%d", nArg);
631 Tcl_SetVar(interp, "sqlite_unlock_notify_argcount", zBuf, TCL_GLOBAL_ONLY);
634 # define setTestUnlockNotifyVars(x,y,z)
637 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
638 static void DbUnlockNotify(void **apArg, int nArg){
640 for(i=0; i<nArg; i++){
641 const int flags = (TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT);
642 SqliteDb *pDb = (SqliteDb *)apArg[i];
643 setTestUnlockNotifyVars(pDb->interp, i, nArg);
644 assert( pDb->pUnlockNotify);
645 Tcl_EvalObjEx(pDb->interp, pDb->pUnlockNotify, flags);
646 Tcl_DecrRefCount(pDb->pUnlockNotify);
647 pDb->pUnlockNotify = 0;
652 static void DbUpdateHandler(
659 SqliteDb *pDb = (SqliteDb *)p;
662 assert( pDb->pUpdateHook );
663 assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
665 pCmd = Tcl_DuplicateObj(pDb->pUpdateHook);
666 Tcl_IncrRefCount(pCmd);
667 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(
668 ( (op==SQLITE_INSERT)?"INSERT":(op==SQLITE_UPDATE)?"UPDATE":"DELETE"), -1));
669 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zDb, -1));
670 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zTbl, -1));
671 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewWideIntObj(rowid));
672 Tcl_EvalObjEx(pDb->interp, pCmd, TCL_EVAL_DIRECT);
673 Tcl_DecrRefCount(pCmd);
676 static void tclCollateNeeded(
682 SqliteDb *pDb = (SqliteDb *)pCtx;
683 Tcl_Obj *pScript = Tcl_DuplicateObj(pDb->pCollateNeeded);
684 Tcl_IncrRefCount(pScript);
685 Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj(zName, -1));
686 Tcl_EvalObjEx(pDb->interp, pScript, 0);
687 Tcl_DecrRefCount(pScript);
691 ** This routine is called to evaluate an SQL collation function implemented
694 static int tclSqlCollate(
701 SqlCollate *p = (SqlCollate *)pCtx;
704 pCmd = Tcl_NewStringObj(p->zScript, -1);
705 Tcl_IncrRefCount(pCmd);
706 Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zA, nA));
707 Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zB, nB));
708 Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
709 Tcl_DecrRefCount(pCmd);
710 return (atoi(Tcl_GetStringResult(p->interp)));
714 ** This routine is called to evaluate an SQL function implemented
717 static void tclSqlFunc(sqlite3_context *context, int argc, sqlite3_value**argv){
718 SqlFunc *p = sqlite3_user_data(context);
724 /* If there are no arguments to the function, call Tcl_EvalObjEx on the
725 ** script object directly. This allows the TCL compiler to generate
726 ** bytecode for the command on the first invocation and thus make
727 ** subsequent invocations much faster. */
729 Tcl_IncrRefCount(pCmd);
730 rc = Tcl_EvalObjEx(p->interp, pCmd, 0);
731 Tcl_DecrRefCount(pCmd);
733 /* If there are arguments to the function, make a shallow copy of the
734 ** script object, lappend the arguments, then evaluate the copy.
736 ** By "shallow" copy, we mean a only the outer list Tcl_Obj is duplicated.
737 ** The new Tcl_Obj contains pointers to the original list elements.
738 ** That way, when Tcl_EvalObjv() is run and shimmers the first element
739 ** of the list to tclCmdNameType, that alternate representation will
740 ** be preserved and reused on the next invocation.
744 if( Tcl_ListObjGetElements(p->interp, p->pScript, &nArg, &aArg) ){
745 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
748 pCmd = Tcl_NewListObj(nArg, aArg);
749 Tcl_IncrRefCount(pCmd);
750 for(i=0; i<argc; i++){
751 sqlite3_value *pIn = argv[i];
754 /* Set pVal to contain the i'th column of this row. */
755 switch( sqlite3_value_type(pIn) ){
757 int bytes = sqlite3_value_bytes(pIn);
758 pVal = Tcl_NewByteArrayObj(sqlite3_value_blob(pIn), bytes);
761 case SQLITE_INTEGER: {
762 sqlite_int64 v = sqlite3_value_int64(pIn);
763 if( v>=-2147483647 && v<=2147483647 ){
764 pVal = Tcl_NewIntObj((int)v);
766 pVal = Tcl_NewWideIntObj(v);
771 double r = sqlite3_value_double(pIn);
772 pVal = Tcl_NewDoubleObj(r);
776 pVal = Tcl_NewStringObj("", 0);
780 int bytes = sqlite3_value_bytes(pIn);
781 pVal = Tcl_NewStringObj((char *)sqlite3_value_text(pIn), bytes);
785 rc = Tcl_ListObjAppendElement(p->interp, pCmd, pVal);
787 Tcl_DecrRefCount(pCmd);
788 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
792 if( !p->useEvalObjv ){
793 /* Tcl_EvalObjEx() will automatically call Tcl_EvalObjv() if pCmd
794 ** is a list without a string representation. To prevent this from
795 ** happening, make sure pCmd has a valid string representation */
798 rc = Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
799 Tcl_DecrRefCount(pCmd);
802 if( rc && rc!=TCL_RETURN ){
803 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
805 Tcl_Obj *pVar = Tcl_GetObjResult(p->interp);
808 const char *zType = (pVar->typePtr ? pVar->typePtr->name : "");
810 if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){
811 /* Only return a BLOB type if the Tcl variable is a bytearray and
812 ** has no string representation. */
813 data = Tcl_GetByteArrayFromObj(pVar, &n);
814 sqlite3_result_blob(context, data, n, SQLITE_TRANSIENT);
815 }else if( c=='b' && strcmp(zType,"boolean")==0 ){
816 Tcl_GetIntFromObj(0, pVar, &n);
817 sqlite3_result_int(context, n);
818 }else if( c=='d' && strcmp(zType,"double")==0 ){
820 Tcl_GetDoubleFromObj(0, pVar, &r);
821 sqlite3_result_double(context, r);
822 }else if( (c=='w' && strcmp(zType,"wideInt")==0) ||
823 (c=='i' && strcmp(zType,"int")==0) ){
825 Tcl_GetWideIntFromObj(0, pVar, &v);
826 sqlite3_result_int64(context, v);
828 data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
829 sqlite3_result_text(context, (char *)data, n, SQLITE_TRANSIENT);
834 #ifndef SQLITE_OMIT_AUTHORIZATION
836 ** This is the authentication function. It appends the authentication
837 ** type code and the two arguments to zCmd[] then invokes the result
838 ** on the interpreter. The reply is examined to determine if the
839 ** authentication fails or succeeds.
841 static int auth_callback(
853 SqliteDb *pDb = (SqliteDb*)pArg;
854 if( pDb->disableAuth ) return SQLITE_OK;
857 case SQLITE_COPY : zCode="SQLITE_COPY"; break;
858 case SQLITE_CREATE_INDEX : zCode="SQLITE_CREATE_INDEX"; break;
859 case SQLITE_CREATE_TABLE : zCode="SQLITE_CREATE_TABLE"; break;
860 case SQLITE_CREATE_TEMP_INDEX : zCode="SQLITE_CREATE_TEMP_INDEX"; break;
861 case SQLITE_CREATE_TEMP_TABLE : zCode="SQLITE_CREATE_TEMP_TABLE"; break;
862 case SQLITE_CREATE_TEMP_TRIGGER: zCode="SQLITE_CREATE_TEMP_TRIGGER"; break;
863 case SQLITE_CREATE_TEMP_VIEW : zCode="SQLITE_CREATE_TEMP_VIEW"; break;
864 case SQLITE_CREATE_TRIGGER : zCode="SQLITE_CREATE_TRIGGER"; break;
865 case SQLITE_CREATE_VIEW : zCode="SQLITE_CREATE_VIEW"; break;
866 case SQLITE_DELETE : zCode="SQLITE_DELETE"; break;
867 case SQLITE_DROP_INDEX : zCode="SQLITE_DROP_INDEX"; break;
868 case SQLITE_DROP_TABLE : zCode="SQLITE_DROP_TABLE"; break;
869 case SQLITE_DROP_TEMP_INDEX : zCode="SQLITE_DROP_TEMP_INDEX"; break;
870 case SQLITE_DROP_TEMP_TABLE : zCode="SQLITE_DROP_TEMP_TABLE"; break;
871 case SQLITE_DROP_TEMP_TRIGGER : zCode="SQLITE_DROP_TEMP_TRIGGER"; break;
872 case SQLITE_DROP_TEMP_VIEW : zCode="SQLITE_DROP_TEMP_VIEW"; break;
873 case SQLITE_DROP_TRIGGER : zCode="SQLITE_DROP_TRIGGER"; break;
874 case SQLITE_DROP_VIEW : zCode="SQLITE_DROP_VIEW"; break;
875 case SQLITE_INSERT : zCode="SQLITE_INSERT"; break;
876 case SQLITE_PRAGMA : zCode="SQLITE_PRAGMA"; break;
877 case SQLITE_READ : zCode="SQLITE_READ"; break;
878 case SQLITE_SELECT : zCode="SQLITE_SELECT"; break;
879 case SQLITE_TRANSACTION : zCode="SQLITE_TRANSACTION"; break;
880 case SQLITE_UPDATE : zCode="SQLITE_UPDATE"; break;
881 case SQLITE_ATTACH : zCode="SQLITE_ATTACH"; break;
882 case SQLITE_DETACH : zCode="SQLITE_DETACH"; break;
883 case SQLITE_ALTER_TABLE : zCode="SQLITE_ALTER_TABLE"; break;
884 case SQLITE_REINDEX : zCode="SQLITE_REINDEX"; break;
885 case SQLITE_ANALYZE : zCode="SQLITE_ANALYZE"; break;
886 case SQLITE_CREATE_VTABLE : zCode="SQLITE_CREATE_VTABLE"; break;
887 case SQLITE_DROP_VTABLE : zCode="SQLITE_DROP_VTABLE"; break;
888 case SQLITE_FUNCTION : zCode="SQLITE_FUNCTION"; break;
889 case SQLITE_SAVEPOINT : zCode="SQLITE_SAVEPOINT"; break;
890 default : zCode="????"; break;
892 Tcl_DStringInit(&str);
893 Tcl_DStringAppend(&str, pDb->zAuth, -1);
894 Tcl_DStringAppendElement(&str, zCode);
895 Tcl_DStringAppendElement(&str, zArg1 ? zArg1 : "");
896 Tcl_DStringAppendElement(&str, zArg2 ? zArg2 : "");
897 Tcl_DStringAppendElement(&str, zArg3 ? zArg3 : "");
898 Tcl_DStringAppendElement(&str, zArg4 ? zArg4 : "");
899 rc = Tcl_GlobalEval(pDb->interp, Tcl_DStringValue(&str));
900 Tcl_DStringFree(&str);
901 zReply = Tcl_GetStringResult(pDb->interp);
902 if( strcmp(zReply,"SQLITE_OK")==0 ){
904 }else if( strcmp(zReply,"SQLITE_DENY")==0 ){
906 }else if( strcmp(zReply,"SQLITE_IGNORE")==0 ){
913 #endif /* SQLITE_OMIT_AUTHORIZATION */
916 ** zText is a pointer to text obtained via an sqlite3_result_text()
917 ** or similar interface. This routine returns a Tcl string object,
918 ** reference count set to 0, containing the text. If a translation
919 ** between iso8859 and UTF-8 is required, it is preformed.
921 static Tcl_Obj *dbTextToObj(char const *zText){
923 #ifdef UTF_TRANSLATION_NEEDED
925 Tcl_DStringInit(&dCol);
926 Tcl_ExternalToUtfDString(NULL, zText, -1, &dCol);
927 pVal = Tcl_NewStringObj(Tcl_DStringValue(&dCol), -1);
928 Tcl_DStringFree(&dCol);
930 pVal = Tcl_NewStringObj(zText, -1);
936 ** This routine reads a line of text from FILE in, stores
937 ** the text in memory obtained from malloc() and returns a pointer
938 ** to the text. NULL is returned at end of file, or if malloc()
941 ** The interface is like "readline" but no command-line editing
944 ** copied from shell.c from '.import' command
946 static char *local_getline(char *zPrompt, FILE *in){
953 zLine = malloc( nLine );
954 if( zLine==0 ) return 0;
959 nLine = nLine*2 + 100;
960 zLine = realloc(zLine, nLine);
961 if( zLine==0 ) return 0;
963 if( fgets(&zLine[n], nLine - n, in)==0 ){
972 while( zLine[n] ){ n++; }
973 if( n>0 && zLine[n-1]=='\n' ){
979 zLine = realloc( zLine, n+1 );
985 ** This function is part of the implementation of the command:
987 ** $db transaction [-deferred|-immediate|-exclusive] SCRIPT
989 ** It is invoked after evaluating the script SCRIPT to commit or rollback
990 ** the transaction or savepoint opened by the [transaction] command.
992 static int DbTransPostCmd(
993 ClientData data[], /* data[0] is the Sqlite3Db* for $db */
994 Tcl_Interp *interp, /* Tcl interpreter */
995 int result /* Result of evaluating SCRIPT */
997 static const char *azEnd[] = {
998 "RELEASE _tcl_transaction", /* rc==TCL_ERROR, nTransaction!=0 */
999 "COMMIT", /* rc!=TCL_ERROR, nTransaction==0 */
1000 "ROLLBACK TO _tcl_transaction ; RELEASE _tcl_transaction",
1001 "ROLLBACK" /* rc==TCL_ERROR, nTransaction==0 */
1003 SqliteDb *pDb = (SqliteDb*)data[0];
1007 pDb->nTransaction--;
1008 zEnd = azEnd[(rc==TCL_ERROR)*2 + (pDb->nTransaction==0)];
1011 if( sqlite3_exec(pDb->db, zEnd, 0, 0, 0) ){
1012 /* This is a tricky scenario to handle. The most likely cause of an
1013 ** error is that the exec() above was an attempt to commit the
1014 ** top-level transaction that returned SQLITE_BUSY. Or, less likely,
1015 ** that an IO-error has occured. In either case, throw a Tcl exception
1016 ** and try to rollback the transaction.
1018 ** But it could also be that the user executed one or more BEGIN,
1019 ** COMMIT, SAVEPOINT, RELEASE or ROLLBACK commands that are confusing
1020 ** this method's logic. Not clear how this would be best handled.
1022 if( rc!=TCL_ERROR ){
1023 Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), 0);
1026 sqlite3_exec(pDb->db, "ROLLBACK", 0, 0, 0);
1034 ** Search the cache for a prepared-statement object that implements the
1035 ** first SQL statement in the buffer pointed to by parameter zIn. If
1036 ** no such prepared-statement can be found, allocate and prepare a new
1037 ** one. In either case, bind the current values of the relevant Tcl
1038 ** variables to any $var, :var or @var variables in the statement. Before
1039 ** returning, set *ppPreStmt to point to the prepared-statement object.
1041 ** Output parameter *pzOut is set to point to the next SQL statement in
1042 ** buffer zIn, or to the '\0' byte at the end of zIn if there is no
1045 ** If successful, TCL_OK is returned. Otherwise, TCL_ERROR is returned
1046 ** and an error message loaded into interpreter pDb->interp.
1048 static int dbPrepareAndBind(
1049 SqliteDb *pDb, /* Database object */
1050 char const *zIn, /* SQL to compile */
1051 char const **pzOut, /* OUT: Pointer to next SQL statement */
1052 SqlPreparedStmt **ppPreStmt /* OUT: Object used to cache statement */
1054 const char *zSql = zIn; /* Pointer to first SQL statement in zIn */
1055 sqlite3_stmt *pStmt; /* Prepared statement object */
1056 SqlPreparedStmt *pPreStmt; /* Pointer to cached statement */
1057 int nSql; /* Length of zSql in bytes */
1058 int nVar; /* Number of variables in statement */
1059 int iParm = 0; /* Next free entry in apParm */
1061 Tcl_Interp *interp = pDb->interp;
1065 /* Trim spaces from the start of zSql and calculate the remaining length. */
1066 while( isspace(zSql[0]) ){ zSql++; }
1067 nSql = strlen30(zSql);
1069 for(pPreStmt = pDb->stmtList; pPreStmt; pPreStmt=pPreStmt->pNext){
1070 int n = pPreStmt->nSql;
1072 && memcmp(pPreStmt->zSql, zSql, n)==0
1073 && (zSql[n]==0 || zSql[n-1]==';')
1075 pStmt = pPreStmt->pStmt;
1076 *pzOut = &zSql[pPreStmt->nSql];
1078 /* When a prepared statement is found, unlink it from the
1079 ** cache list. It will later be added back to the beginning
1080 ** of the cache list in order to implement LRU replacement.
1082 if( pPreStmt->pPrev ){
1083 pPreStmt->pPrev->pNext = pPreStmt->pNext;
1085 pDb->stmtList = pPreStmt->pNext;
1087 if( pPreStmt->pNext ){
1088 pPreStmt->pNext->pPrev = pPreStmt->pPrev;
1090 pDb->stmtLast = pPreStmt->pPrev;
1093 nVar = sqlite3_bind_parameter_count(pStmt);
1098 /* If no prepared statement was found. Compile the SQL text. Also allocate
1099 ** a new SqlPreparedStmt structure. */
1103 if( SQLITE_OK!=sqlite3_prepare_v2(pDb->db, zSql, -1, &pStmt, pzOut) ){
1104 Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1108 if( SQLITE_OK!=sqlite3_errcode(pDb->db) ){
1109 /* A compile-time error in the statement. */
1110 Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1113 /* The statement was a no-op. Continue to the next statement
1114 ** in the SQL string.
1120 assert( pPreStmt==0 );
1121 nVar = sqlite3_bind_parameter_count(pStmt);
1122 nByte = sizeof(SqlPreparedStmt) + nVar*sizeof(Tcl_Obj *);
1123 pPreStmt = (SqlPreparedStmt*)Tcl_Alloc(nByte);
1124 memset(pPreStmt, 0, nByte);
1126 pPreStmt->pStmt = pStmt;
1127 pPreStmt->nSql = (*pzOut - zSql);
1128 pPreStmt->zSql = sqlite3_sql(pStmt);
1129 pPreStmt->apParm = (Tcl_Obj **)&pPreStmt[1];
1132 assert( strlen30(pPreStmt->zSql)==pPreStmt->nSql );
1133 assert( 0==memcmp(pPreStmt->zSql, zSql, pPreStmt->nSql) );
1135 /* Bind values to parameters that begin with $ or : */
1136 for(i=1; i<=nVar; i++){
1137 const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
1138 if( zVar!=0 && (zVar[0]=='$' || zVar[0]==':' || zVar[0]=='@') ){
1139 Tcl_Obj *pVar = Tcl_GetVar2Ex(interp, &zVar[1], 0, 0);
1143 const char *zType = (pVar->typePtr ? pVar->typePtr->name : "");
1146 (c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0) ){
1147 /* Load a BLOB type if the Tcl variable is a bytearray and
1148 ** it has no string representation or the host
1149 ** parameter name begins with "@". */
1150 data = Tcl_GetByteArrayFromObj(pVar, &n);
1151 sqlite3_bind_blob(pStmt, i, data, n, SQLITE_STATIC);
1152 Tcl_IncrRefCount(pVar);
1153 pPreStmt->apParm[iParm++] = pVar;
1154 }else if( c=='b' && strcmp(zType,"boolean")==0 ){
1155 Tcl_GetIntFromObj(interp, pVar, &n);
1156 sqlite3_bind_int(pStmt, i, n);
1157 }else if( c=='d' && strcmp(zType,"double")==0 ){
1159 Tcl_GetDoubleFromObj(interp, pVar, &r);
1160 sqlite3_bind_double(pStmt, i, r);
1161 }else if( (c=='w' && strcmp(zType,"wideInt")==0) ||
1162 (c=='i' && strcmp(zType,"int")==0) ){
1164 Tcl_GetWideIntFromObj(interp, pVar, &v);
1165 sqlite3_bind_int64(pStmt, i, v);
1167 data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
1168 sqlite3_bind_text(pStmt, i, (char *)data, n, SQLITE_STATIC);
1169 Tcl_IncrRefCount(pVar);
1170 pPreStmt->apParm[iParm++] = pVar;
1173 sqlite3_bind_null(pStmt, i);
1177 pPreStmt->nParm = iParm;
1178 *ppPreStmt = pPreStmt;
1185 ** Release a statement reference obtained by calling dbPrepareAndBind().
1186 ** There should be exactly one call to this function for each call to
1187 ** dbPrepareAndBind().
1189 ** If the discard parameter is non-zero, then the statement is deleted
1190 ** immediately. Otherwise it is added to the LRU list and may be returned
1191 ** by a subsequent call to dbPrepareAndBind().
1193 static void dbReleaseStmt(
1194 SqliteDb *pDb, /* Database handle */
1195 SqlPreparedStmt *pPreStmt, /* Prepared statement handle to release */
1196 int discard /* True to delete (not cache) the pPreStmt */
1200 /* Free the bound string and blob parameters */
1201 for(i=0; i<pPreStmt->nParm; i++){
1202 Tcl_DecrRefCount(pPreStmt->apParm[i]);
1204 pPreStmt->nParm = 0;
1206 if( pDb->maxStmt<=0 || discard ){
1207 /* If the cache is turned off, deallocated the statement */
1208 sqlite3_finalize(pPreStmt->pStmt);
1209 Tcl_Free((char *)pPreStmt);
1211 /* Add the prepared statement to the beginning of the cache list. */
1212 pPreStmt->pNext = pDb->stmtList;
1213 pPreStmt->pPrev = 0;
1214 if( pDb->stmtList ){
1215 pDb->stmtList->pPrev = pPreStmt;
1217 pDb->stmtList = pPreStmt;
1218 if( pDb->stmtLast==0 ){
1219 assert( pDb->nStmt==0 );
1220 pDb->stmtLast = pPreStmt;
1222 assert( pDb->nStmt>0 );
1226 /* If we have too many statement in cache, remove the surplus from
1227 ** the end of the cache list. */
1228 while( pDb->nStmt>pDb->maxStmt ){
1229 sqlite3_finalize(pDb->stmtLast->pStmt);
1230 pDb->stmtLast = pDb->stmtLast->pPrev;
1231 Tcl_Free((char*)pDb->stmtLast->pNext);
1232 pDb->stmtLast->pNext = 0;
1239 ** Structure used with dbEvalXXX() functions:
1245 ** dbEvalColumnValue()
1247 typedef struct DbEvalContext DbEvalContext;
1248 struct DbEvalContext {
1249 SqliteDb *pDb; /* Database handle */
1250 Tcl_Obj *pSql; /* Object holding string zSql */
1251 const char *zSql; /* Remaining SQL to execute */
1252 SqlPreparedStmt *pPreStmt; /* Current statement */
1253 int nCol; /* Number of columns returned by pStmt */
1254 Tcl_Obj *pArray; /* Name of array variable */
1255 Tcl_Obj **apColName; /* Array of column names */
1259 ** Release any cache of column names currently held as part of
1260 ** the DbEvalContext structure passed as the first argument.
1262 static void dbReleaseColumnNames(DbEvalContext *p){
1265 for(i=0; i<p->nCol; i++){
1266 Tcl_DecrRefCount(p->apColName[i]);
1268 Tcl_Free((char *)p->apColName);
1275 ** Initialize a DbEvalContext structure.
1277 ** If pArray is not NULL, then it contains the name of a Tcl array
1278 ** variable. The "*" member of this array is set to a list containing
1279 ** the names of the columns returned by the statement as part of each
1280 ** call to dbEvalStep(), in order from left to right. e.g. if the names
1281 ** of the returned columns are a, b and c, it does the equivalent of the
1284 ** set ${pArray}(*) {a b c}
1286 static void dbEvalInit(
1287 DbEvalContext *p, /* Pointer to structure to initialize */
1288 SqliteDb *pDb, /* Database handle */
1289 Tcl_Obj *pSql, /* Object containing SQL script */
1290 Tcl_Obj *pArray /* Name of Tcl array to set (*) element of */
1292 memset(p, 0, sizeof(DbEvalContext));
1294 p->zSql = Tcl_GetString(pSql);
1296 Tcl_IncrRefCount(pSql);
1299 Tcl_IncrRefCount(pArray);
1304 ** Obtain information about the row that the DbEvalContext passed as the
1305 ** first argument currently points to.
1307 static void dbEvalRowInfo(
1308 DbEvalContext *p, /* Evaluation context */
1309 int *pnCol, /* OUT: Number of column names */
1310 Tcl_Obj ***papColName /* OUT: Array of column names */
1312 /* Compute column names */
1313 if( 0==p->apColName ){
1314 sqlite3_stmt *pStmt = p->pPreStmt->pStmt;
1315 int i; /* Iterator variable */
1316 int nCol; /* Number of columns returned by pStmt */
1317 Tcl_Obj **apColName = 0; /* Array of column names */
1319 p->nCol = nCol = sqlite3_column_count(pStmt);
1320 if( nCol>0 && (papColName || p->pArray) ){
1321 apColName = (Tcl_Obj**)Tcl_Alloc( sizeof(Tcl_Obj*)*nCol );
1322 for(i=0; i<nCol; i++){
1323 apColName[i] = dbTextToObj(sqlite3_column_name(pStmt,i));
1324 Tcl_IncrRefCount(apColName[i]);
1326 p->apColName = apColName;
1329 /* If results are being stored in an array variable, then create
1330 ** the array(*) entry for that array
1333 Tcl_Interp *interp = p->pDb->interp;
1334 Tcl_Obj *pColList = Tcl_NewObj();
1335 Tcl_Obj *pStar = Tcl_NewStringObj("*", -1);
1337 for(i=0; i<nCol; i++){
1338 Tcl_ListObjAppendElement(interp, pColList, apColName[i]);
1340 Tcl_IncrRefCount(pStar);
1341 Tcl_ObjSetVar2(interp, p->pArray, pStar, pColList, 0);
1342 Tcl_DecrRefCount(pStar);
1347 *papColName = p->apColName;
1355 ** Return one of TCL_OK, TCL_BREAK or TCL_ERROR. If TCL_ERROR is
1356 ** returned, then an error message is stored in the interpreter before
1359 ** A return value of TCL_OK means there is a row of data available. The
1360 ** data may be accessed using dbEvalRowInfo() and dbEvalColumnValue(). This
1361 ** is analogous to a return of SQLITE_ROW from sqlite3_step(). If TCL_BREAK
1362 ** is returned, then the SQL script has finished executing and there are
1363 ** no further rows available. This is similar to SQLITE_DONE.
1365 static int dbEvalStep(DbEvalContext *p){
1366 while( p->zSql[0] || p->pPreStmt ){
1368 if( p->pPreStmt==0 ){
1369 rc = dbPrepareAndBind(p->pDb, p->zSql, &p->zSql, &p->pPreStmt);
1370 if( rc!=TCL_OK ) return rc;
1373 SqliteDb *pDb = p->pDb;
1374 SqlPreparedStmt *pPreStmt = p->pPreStmt;
1375 sqlite3_stmt *pStmt = pPreStmt->pStmt;
1377 rcs = sqlite3_step(pStmt);
1378 if( rcs==SQLITE_ROW ){
1382 dbEvalRowInfo(p, 0, 0);
1384 rcs = sqlite3_reset(pStmt);
1386 pDb->nStep = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_FULLSCAN_STEP,1);
1387 pDb->nSort = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_SORT,1);
1388 pDb->nIndex = sqlite3_stmt_status(pStmt,SQLITE_STMTSTATUS_AUTOINDEX,1);
1389 dbReleaseColumnNames(p);
1392 if( rcs!=SQLITE_OK ){
1393 /* If a run-time error occurs, report the error and stop reading
1395 Tcl_SetObjResult(pDb->interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1396 dbReleaseStmt(pDb, pPreStmt, 1);
1399 dbReleaseStmt(pDb, pPreStmt, 0);
1409 ** Free all resources currently held by the DbEvalContext structure passed
1410 ** as the first argument. There should be exactly one call to this function
1411 ** for each call to dbEvalInit().
1413 static void dbEvalFinalize(DbEvalContext *p){
1415 sqlite3_reset(p->pPreStmt->pStmt);
1416 dbReleaseStmt(p->pDb, p->pPreStmt, 0);
1420 Tcl_DecrRefCount(p->pArray);
1423 Tcl_DecrRefCount(p->pSql);
1424 dbReleaseColumnNames(p);
1428 ** Return a pointer to a Tcl_Obj structure with ref-count 0 that contains
1429 ** the value for the iCol'th column of the row currently pointed to by
1430 ** the DbEvalContext structure passed as the first argument.
1432 static Tcl_Obj *dbEvalColumnValue(DbEvalContext *p, int iCol){
1433 sqlite3_stmt *pStmt = p->pPreStmt->pStmt;
1434 switch( sqlite3_column_type(pStmt, iCol) ){
1436 int bytes = sqlite3_column_bytes(pStmt, iCol);
1437 const char *zBlob = sqlite3_column_blob(pStmt, iCol);
1438 if( !zBlob ) bytes = 0;
1439 return Tcl_NewByteArrayObj((u8*)zBlob, bytes);
1441 case SQLITE_INTEGER: {
1442 sqlite_int64 v = sqlite3_column_int64(pStmt, iCol);
1443 if( v>=-2147483647 && v<=2147483647 ){
1444 return Tcl_NewIntObj((int)v);
1446 return Tcl_NewWideIntObj(v);
1449 case SQLITE_FLOAT: {
1450 return Tcl_NewDoubleObj(sqlite3_column_double(pStmt, iCol));
1453 return dbTextToObj(p->pDb->zNull);
1457 return dbTextToObj((char *)sqlite3_column_text(pStmt, iCol));
1461 ** If using Tcl version 8.6 or greater, use the NR functions to avoid
1462 ** recursive evalution of scripts by the [db eval] and [db trans]
1463 ** commands. Even if the headers used while compiling the extension
1464 ** are 8.6 or newer, the code still tests the Tcl version at runtime.
1465 ** This allows stubs-enabled builds to be used with older Tcl libraries.
1467 #if TCL_MAJOR_VERSION>8 || (TCL_MAJOR_VERSION==8 && TCL_MINOR_VERSION>=6)
1468 # define SQLITE_TCL_NRE 1
1469 static int DbUseNre(void){
1471 Tcl_GetVersion(&major, &minor, 0, 0);
1472 return( (major==8 && minor>=6) || major>8 );
1476 ** Compiling using headers earlier than 8.6. In this case NR cannot be
1477 ** used, so DbUseNre() to always return zero. Add #defines for the other
1478 ** Tcl_NRxxx() functions to prevent them from causing compilation errors,
1479 ** even though the only invocations of them are within conditional blocks
1482 ** if( DbUseNre() ) { ... }
1484 # define SQLITE_TCL_NRE 0
1485 # define DbUseNre() 0
1486 # define Tcl_NRAddCallback(a,b,c,d,e,f) 0
1487 # define Tcl_NREvalObj(a,b,c) 0
1488 # define Tcl_NRCreateCommand(a,b,c,d,e,f) 0
1492 ** This function is part of the implementation of the command:
1494 ** $db eval SQL ?ARRAYNAME? SCRIPT
1496 static int DbEvalNextCmd(
1497 ClientData data[], /* data[0] is the (DbEvalContext*) */
1498 Tcl_Interp *interp, /* Tcl interpreter */
1499 int result /* Result so far */
1501 int rc = result; /* Return code */
1503 /* The first element of the data[] array is a pointer to a DbEvalContext
1504 ** structure allocated using Tcl_Alloc(). The second element of data[]
1505 ** is a pointer to a Tcl_Obj containing the script to run for each row
1506 ** returned by the queries encapsulated in data[0]. */
1507 DbEvalContext *p = (DbEvalContext *)data[0];
1508 Tcl_Obj *pScript = (Tcl_Obj *)data[1];
1509 Tcl_Obj *pArray = p->pArray;
1511 while( (rc==TCL_OK || rc==TCL_CONTINUE) && TCL_OK==(rc = dbEvalStep(p)) ){
1514 Tcl_Obj **apColName;
1515 dbEvalRowInfo(p, &nCol, &apColName);
1516 for(i=0; i<nCol; i++){
1517 Tcl_Obj *pVal = dbEvalColumnValue(p, i);
1519 Tcl_ObjSetVar2(interp, apColName[i], 0, pVal, 0);
1521 Tcl_ObjSetVar2(interp, pArray, apColName[i], pVal, 0);
1525 /* The required interpreter variables are now populated with the data
1526 ** from the current row. If using NRE, schedule callbacks to evaluate
1527 ** script pScript, then to invoke this function again to fetch the next
1528 ** row (or clean up if there is no next row or the script throws an
1529 ** exception). After scheduling the callbacks, return control to the
1532 ** If not using NRE, evaluate pScript directly and continue with the
1533 ** next iteration of this while(...) loop. */
1535 Tcl_NRAddCallback(interp, DbEvalNextCmd, (void*)p, (void*)pScript, 0, 0);
1536 return Tcl_NREvalObj(interp, pScript, 0);
1538 rc = Tcl_EvalObjEx(interp, pScript, 0);
1542 Tcl_DecrRefCount(pScript);
1544 Tcl_Free((char *)p);
1546 if( rc==TCL_OK || rc==TCL_BREAK ){
1547 Tcl_ResetResult(interp);
1554 ** The "sqlite" command below creates a new Tcl command for each
1555 ** connection it opens to an SQLite database. This routine is invoked
1556 ** whenever one of those connection-specific commands is executed
1557 ** in Tcl. For example, if you run Tcl code like this:
1559 ** sqlite3 db1 "my_database"
1562 ** The first command opens a connection to the "my_database" database
1563 ** and calls that connection "db1". The second command causes this
1564 ** subroutine to be invoked.
1566 static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
1567 SqliteDb *pDb = (SqliteDb*)cd;
1570 static const char *DB_strs[] = {
1571 "authorizer", "backup", "busy",
1572 "cache", "changes", "close",
1573 "collate", "collation_needed", "commit_hook",
1574 "complete", "copy", "enable_load_extension",
1575 "errorcode", "eval", "exists",
1576 "function", "incrblob", "interrupt",
1577 "last_insert_rowid", "nullvalue", "onecolumn",
1578 "profile", "progress", "rekey",
1579 "restore", "rollback_hook", "status",
1580 "timeout", "total_changes", "trace",
1581 "transaction", "unlock_notify", "update_hook",
1582 "version", "wal_hook", 0
1585 DB_AUTHORIZER, DB_BACKUP, DB_BUSY,
1586 DB_CACHE, DB_CHANGES, DB_CLOSE,
1587 DB_COLLATE, DB_COLLATION_NEEDED, DB_COMMIT_HOOK,
1588 DB_COMPLETE, DB_COPY, DB_ENABLE_LOAD_EXTENSION,
1589 DB_ERRORCODE, DB_EVAL, DB_EXISTS,
1590 DB_FUNCTION, DB_INCRBLOB, DB_INTERRUPT,
1591 DB_LAST_INSERT_ROWID, DB_NULLVALUE, DB_ONECOLUMN,
1592 DB_PROFILE, DB_PROGRESS, DB_REKEY,
1593 DB_RESTORE, DB_ROLLBACK_HOOK, DB_STATUS,
1594 DB_TIMEOUT, DB_TOTAL_CHANGES, DB_TRACE,
1595 DB_TRANSACTION, DB_UNLOCK_NOTIFY, DB_UPDATE_HOOK,
1596 DB_VERSION, DB_WAL_HOOK
1598 /* don't leave trailing commas on DB_enum, it confuses the AIX xlc compiler */
1601 Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
1604 if( Tcl_GetIndexFromObj(interp, objv[1], DB_strs, "option", 0, &choice) ){
1608 switch( (enum DB_enum)choice ){
1610 /* $db authorizer ?CALLBACK?
1612 ** Invoke the given callback to authorize each SQL operation as it is
1613 ** compiled. 5 arguments are appended to the callback before it is
1616 ** (1) The authorization type (ex: SQLITE_CREATE_TABLE, SQLITE_INSERT, ...)
1617 ** (2) First descriptive name (depends on authorization type)
1618 ** (3) Second descriptive name
1619 ** (4) Name of the database (ex: "main", "temp")
1620 ** (5) Name of trigger that is doing the access
1622 ** The callback should return on of the following strings: SQLITE_OK,
1623 ** SQLITE_IGNORE, or SQLITE_DENY. Any other return value is an error.
1625 ** If this method is invoked with no arguments, the current authorization
1626 ** callback string is returned.
1628 case DB_AUTHORIZER: {
1629 #ifdef SQLITE_OMIT_AUTHORIZATION
1630 Tcl_AppendResult(interp, "authorization not available in this build", 0);
1634 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
1636 }else if( objc==2 ){
1638 Tcl_AppendResult(interp, pDb->zAuth, 0);
1644 Tcl_Free(pDb->zAuth);
1646 zAuth = Tcl_GetStringFromObj(objv[2], &len);
1647 if( zAuth && len>0 ){
1648 pDb->zAuth = Tcl_Alloc( len + 1 );
1649 memcpy(pDb->zAuth, zAuth, len+1);
1654 pDb->interp = interp;
1655 sqlite3_set_authorizer(pDb->db, auth_callback, pDb);
1657 sqlite3_set_authorizer(pDb->db, 0, 0);
1664 /* $db backup ?DATABASE? FILENAME
1666 ** Open or create a database file named FILENAME. Transfer the
1667 ** content of local database DATABASE (default: "main") into the
1668 ** FILENAME database.
1671 const char *zDestFile;
1674 sqlite3_backup *pBackup;
1678 zDestFile = Tcl_GetString(objv[2]);
1679 }else if( objc==4 ){
1680 zSrcDb = Tcl_GetString(objv[2]);
1681 zDestFile = Tcl_GetString(objv[3]);
1683 Tcl_WrongNumArgs(interp, 2, objv, "?DATABASE? FILENAME");
1686 rc = sqlite3_open(zDestFile, &pDest);
1687 if( rc!=SQLITE_OK ){
1688 Tcl_AppendResult(interp, "cannot open target database: ",
1689 sqlite3_errmsg(pDest), (char*)0);
1690 sqlite3_close(pDest);
1693 pBackup = sqlite3_backup_init(pDest, "main", pDb->db, zSrcDb);
1695 Tcl_AppendResult(interp, "backup failed: ",
1696 sqlite3_errmsg(pDest), (char*)0);
1697 sqlite3_close(pDest);
1700 while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){}
1701 sqlite3_backup_finish(pBackup);
1702 if( rc==SQLITE_DONE ){
1705 Tcl_AppendResult(interp, "backup failed: ",
1706 sqlite3_errmsg(pDest), (char*)0);
1709 sqlite3_close(pDest);
1713 /* $db busy ?CALLBACK?
1715 ** Invoke the given callback if an SQL statement attempts to open
1716 ** a locked database file.
1720 Tcl_WrongNumArgs(interp, 2, objv, "CALLBACK");
1722 }else if( objc==2 ){
1724 Tcl_AppendResult(interp, pDb->zBusy, 0);
1730 Tcl_Free(pDb->zBusy);
1732 zBusy = Tcl_GetStringFromObj(objv[2], &len);
1733 if( zBusy && len>0 ){
1734 pDb->zBusy = Tcl_Alloc( len + 1 );
1735 memcpy(pDb->zBusy, zBusy, len+1);
1740 pDb->interp = interp;
1741 sqlite3_busy_handler(pDb->db, DbBusyHandler, pDb);
1743 sqlite3_busy_handler(pDb->db, 0, 0);
1752 ** Flush the prepared statement cache, or set the maximum number of
1753 ** cached statements.
1760 Tcl_WrongNumArgs(interp, 1, objv, "cache option ?arg?");
1763 subCmd = Tcl_GetStringFromObj( objv[2], 0 );
1764 if( *subCmd=='f' && strcmp(subCmd,"flush")==0 ){
1766 Tcl_WrongNumArgs(interp, 2, objv, "flush");
1769 flushStmtCache( pDb );
1771 }else if( *subCmd=='s' && strcmp(subCmd,"size")==0 ){
1773 Tcl_WrongNumArgs(interp, 2, objv, "size n");
1776 if( TCL_ERROR==Tcl_GetIntFromObj(interp, objv[3], &n) ){
1777 Tcl_AppendResult( interp, "cannot convert \"",
1778 Tcl_GetStringFromObj(objv[3],0), "\" to integer", 0);
1782 flushStmtCache( pDb );
1784 }else if( n>MAX_PREPARED_STMTS ){
1785 n = MAX_PREPARED_STMTS;
1791 Tcl_AppendResult( interp, "bad option \"",
1792 Tcl_GetStringFromObj(objv[2],0), "\": must be flush or size", 0);
1800 ** Return the number of rows that were modified, inserted, or deleted by
1801 ** the most recent INSERT, UPDATE or DELETE statement, not including
1802 ** any changes made by trigger programs.
1807 Tcl_WrongNumArgs(interp, 2, objv, "");
1810 pResult = Tcl_GetObjResult(interp);
1811 Tcl_SetIntObj(pResult, sqlite3_changes(pDb->db));
1817 ** Shutdown the database
1820 Tcl_DeleteCommand(interp, Tcl_GetStringFromObj(objv[0], 0));
1825 ** $db collate NAME SCRIPT
1827 ** Create a new SQL collation function called NAME. Whenever
1828 ** that function is called, invoke SCRIPT to evaluate the function.
1831 SqlCollate *pCollate;
1836 Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT");
1839 zName = Tcl_GetStringFromObj(objv[2], 0);
1840 zScript = Tcl_GetStringFromObj(objv[3], &nScript);
1841 pCollate = (SqlCollate*)Tcl_Alloc( sizeof(*pCollate) + nScript + 1 );
1842 if( pCollate==0 ) return TCL_ERROR;
1843 pCollate->interp = interp;
1844 pCollate->pNext = pDb->pCollate;
1845 pCollate->zScript = (char*)&pCollate[1];
1846 pDb->pCollate = pCollate;
1847 memcpy(pCollate->zScript, zScript, nScript+1);
1848 if( sqlite3_create_collation(pDb->db, zName, SQLITE_UTF8,
1849 pCollate, tclSqlCollate) ){
1850 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
1857 ** $db collation_needed SCRIPT
1859 ** Create a new SQL collation function called NAME. Whenever
1860 ** that function is called, invoke SCRIPT to evaluate the function.
1862 case DB_COLLATION_NEEDED: {
1864 Tcl_WrongNumArgs(interp, 2, objv, "SCRIPT");
1867 if( pDb->pCollateNeeded ){
1868 Tcl_DecrRefCount(pDb->pCollateNeeded);
1870 pDb->pCollateNeeded = Tcl_DuplicateObj(objv[2]);
1871 Tcl_IncrRefCount(pDb->pCollateNeeded);
1872 sqlite3_collation_needed(pDb->db, pDb, tclCollateNeeded);
1876 /* $db commit_hook ?CALLBACK?
1878 ** Invoke the given callback just before committing every SQL transaction.
1879 ** If the callback throws an exception or returns non-zero, then the
1880 ** transaction is aborted. If CALLBACK is an empty string, the callback
1883 case DB_COMMIT_HOOK: {
1885 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
1887 }else if( objc==2 ){
1889 Tcl_AppendResult(interp, pDb->zCommit, 0);
1895 Tcl_Free(pDb->zCommit);
1897 zCommit = Tcl_GetStringFromObj(objv[2], &len);
1898 if( zCommit && len>0 ){
1899 pDb->zCommit = Tcl_Alloc( len + 1 );
1900 memcpy(pDb->zCommit, zCommit, len+1);
1905 pDb->interp = interp;
1906 sqlite3_commit_hook(pDb->db, DbCommitHandler, pDb);
1908 sqlite3_commit_hook(pDb->db, 0, 0);
1916 ** Return TRUE if SQL is a complete SQL statement. Return FALSE if
1917 ** additional lines of input are needed. This is similar to the
1918 ** built-in "info complete" command of Tcl.
1921 #ifndef SQLITE_OMIT_COMPLETE
1925 Tcl_WrongNumArgs(interp, 2, objv, "SQL");
1928 isComplete = sqlite3_complete( Tcl_GetStringFromObj(objv[2], 0) );
1929 pResult = Tcl_GetObjResult(interp);
1930 Tcl_SetBooleanObj(pResult, isComplete);
1935 /* $db copy conflict-algorithm table filename ?SEPARATOR? ?NULLINDICATOR?
1937 ** Copy data into table from filename, optionally using SEPARATOR
1938 ** as column separators. If a column contains a null string, or the
1939 ** value of NULLINDICATOR, a NULL is inserted for the column.
1940 ** conflict-algorithm is one of the sqlite conflict algorithms:
1941 ** rollback, abort, fail, ignore, replace
1942 ** On success, return the number of lines processed, not necessarily same
1943 ** as 'db changes' due to conflict-algorithm selected.
1945 ** This code is basically an implementation/enhancement of
1946 ** the sqlite3 shell.c ".import" command.
1948 ** This command usage is equivalent to the sqlite2.x COPY statement,
1949 ** which imports file data into a table using the PostgreSQL COPY file format:
1950 ** $db copy $conflit_algo $table_name $filename \t \\N
1953 char *zTable; /* Insert data into this table */
1954 char *zFile; /* The file from which to extract data */
1955 char *zConflict; /* The conflict algorithm to use */
1956 sqlite3_stmt *pStmt; /* A statement */
1957 int nCol; /* Number of columns in the table */
1958 int nByte; /* Number of bytes in an SQL string */
1959 int i, j; /* Loop counters */
1960 int nSep; /* Number of bytes in zSep[] */
1961 int nNull; /* Number of bytes in zNull[] */
1962 char *zSql; /* An SQL statement */
1963 char *zLine; /* A single line of input from the file */
1964 char **azCol; /* zLine[] broken up into columns */
1965 char *zCommit; /* How to commit changes */
1966 FILE *in; /* The input file */
1967 int lineno = 0; /* Line number of input file */
1968 char zLineNum[80]; /* Line number print buffer */
1969 Tcl_Obj *pResult; /* interp result */
1973 if( objc<5 || objc>7 ){
1974 Tcl_WrongNumArgs(interp, 2, objv,
1975 "CONFLICT-ALGORITHM TABLE FILENAME ?SEPARATOR? ?NULLINDICATOR?");
1979 zSep = Tcl_GetStringFromObj(objv[5], 0);
1984 zNull = Tcl_GetStringFromObj(objv[6], 0);
1988 zConflict = Tcl_GetStringFromObj(objv[2], 0);
1989 zTable = Tcl_GetStringFromObj(objv[3], 0);
1990 zFile = Tcl_GetStringFromObj(objv[4], 0);
1991 nSep = strlen30(zSep);
1992 nNull = strlen30(zNull);
1994 Tcl_AppendResult(interp,"Error: non-null separator required for copy",0);
1997 if(strcmp(zConflict, "rollback") != 0 &&
1998 strcmp(zConflict, "abort" ) != 0 &&
1999 strcmp(zConflict, "fail" ) != 0 &&
2000 strcmp(zConflict, "ignore" ) != 0 &&
2001 strcmp(zConflict, "replace" ) != 0 ) {
2002 Tcl_AppendResult(interp, "Error: \"", zConflict,
2003 "\", conflict-algorithm must be one of: rollback, "
2004 "abort, fail, ignore, or replace", 0);
2007 zSql = sqlite3_mprintf("SELECT * FROM '%q'", zTable);
2009 Tcl_AppendResult(interp, "Error: no such table: ", zTable, 0);
2012 nByte = strlen30(zSql);
2013 rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0);
2016 Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
2019 nCol = sqlite3_column_count(pStmt);
2021 sqlite3_finalize(pStmt);
2025 zSql = malloc( nByte + 50 + nCol*2 );
2027 Tcl_AppendResult(interp, "Error: can't malloc()", 0);
2030 sqlite3_snprintf(nByte+50, zSql, "INSERT OR %q INTO '%q' VALUES(?",
2033 for(i=1; i<nCol; i++){
2039 rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0);
2042 Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
2043 sqlite3_finalize(pStmt);
2046 in = fopen(zFile, "rb");
2048 Tcl_AppendResult(interp, "Error: cannot open file: ", zFile, NULL);
2049 sqlite3_finalize(pStmt);
2052 azCol = malloc( sizeof(azCol[0])*(nCol+1) );
2054 Tcl_AppendResult(interp, "Error: can't malloc()", 0);
2058 (void)sqlite3_exec(pDb->db, "BEGIN", 0, 0, 0);
2060 while( (zLine = local_getline(0, in))!=0 ){
2065 for(i=0, z=zLine; *z; z++){
2066 if( *z==zSep[0] && strncmp(z, zSep, nSep)==0 ){
2070 azCol[i] = &z[nSep];
2077 int nErr = strlen30(zFile) + 200;
2078 zErr = malloc(nErr);
2080 sqlite3_snprintf(nErr, zErr,
2081 "Error: %s line %d: expected %d columns of data but found %d",
2082 zFile, lineno, nCol, i+1);
2083 Tcl_AppendResult(interp, zErr, 0);
2086 zCommit = "ROLLBACK";
2089 for(i=0; i<nCol; i++){
2090 /* check for null data, if so, bind as null */
2091 if( (nNull>0 && strcmp(azCol[i], zNull)==0)
2092 || strlen30(azCol[i])==0
2094 sqlite3_bind_null(pStmt, i+1);
2096 sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC);
2099 sqlite3_step(pStmt);
2100 rc = sqlite3_reset(pStmt);
2102 if( rc!=SQLITE_OK ){
2103 Tcl_AppendResult(interp,"Error: ", sqlite3_errmsg(pDb->db), 0);
2104 zCommit = "ROLLBACK";
2110 sqlite3_finalize(pStmt);
2111 (void)sqlite3_exec(pDb->db, zCommit, 0, 0, 0);
2113 if( zCommit[0] == 'C' ){
2114 /* success, set result as number of lines processed */
2115 pResult = Tcl_GetObjResult(interp);
2116 Tcl_SetIntObj(pResult, lineno);
2119 /* failure, append lineno where failed */
2120 sqlite3_snprintf(sizeof(zLineNum), zLineNum,"%d",lineno);
2121 Tcl_AppendResult(interp,", failed while processing line: ",zLineNum,0);
2128 ** $db enable_load_extension BOOLEAN
2130 ** Turn the extension loading feature on or off. It if off by
2133 case DB_ENABLE_LOAD_EXTENSION: {
2134 #ifndef SQLITE_OMIT_LOAD_EXTENSION
2137 Tcl_WrongNumArgs(interp, 2, objv, "BOOLEAN");
2140 if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){
2143 sqlite3_enable_load_extension(pDb->db, onoff);
2146 Tcl_AppendResult(interp, "extension loading is turned off at compile-time",
2155 ** Return the numeric error code that was returned by the most recent
2156 ** call to sqlite3_exec().
2158 case DB_ERRORCODE: {
2159 Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_errcode(pDb->db)));
2165 ** $db onecolumn $sql
2167 ** The onecolumn method is the equivalent of:
2168 ** lindex [$db eval $sql] 0
2171 case DB_ONECOLUMN: {
2172 DbEvalContext sEval;
2174 Tcl_WrongNumArgs(interp, 2, objv, "SQL");
2178 dbEvalInit(&sEval, pDb, objv[2], 0);
2179 rc = dbEvalStep(&sEval);
2180 if( choice==DB_ONECOLUMN ){
2182 Tcl_SetObjResult(interp, dbEvalColumnValue(&sEval, 0));
2184 }else if( rc==TCL_BREAK || rc==TCL_OK ){
2185 Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc==TCL_OK));
2187 dbEvalFinalize(&sEval);
2189 if( rc==TCL_BREAK ){
2196 ** $db eval $sql ?array? ?{ ...code... }?
2198 ** The SQL statement in $sql is evaluated. For each row, the values are
2199 ** placed in elements of the array named "array" and ...code... is executed.
2200 ** If "array" and "code" are omitted, then no callback is every invoked.
2201 ** If "array" is an empty string, then the values are placed in variables
2202 ** that have the same name as the fields extracted by the query.
2205 if( objc<3 || objc>5 ){
2206 Tcl_WrongNumArgs(interp, 2, objv, "SQL ?ARRAY-NAME? ?SCRIPT?");
2211 DbEvalContext sEval;
2212 Tcl_Obj *pRet = Tcl_NewObj();
2213 Tcl_IncrRefCount(pRet);
2214 dbEvalInit(&sEval, pDb, objv[2], 0);
2215 while( TCL_OK==(rc = dbEvalStep(&sEval)) ){
2218 dbEvalRowInfo(&sEval, &nCol, 0);
2219 for(i=0; i<nCol; i++){
2220 Tcl_ListObjAppendElement(interp, pRet, dbEvalColumnValue(&sEval, i));
2223 dbEvalFinalize(&sEval);
2224 if( rc==TCL_BREAK ){
2225 Tcl_SetObjResult(interp, pRet);
2228 Tcl_DecrRefCount(pRet);
2232 Tcl_Obj *pArray = 0;
2235 if( objc==5 && *(char *)Tcl_GetString(objv[3]) ){
2238 pScript = objv[objc-1];
2239 Tcl_IncrRefCount(pScript);
2241 p = (DbEvalContext *)Tcl_Alloc(sizeof(DbEvalContext));
2242 dbEvalInit(p, pDb, objv[2], pArray);
2245 cd[1] = (void *)pScript;
2246 rc = DbEvalNextCmd(cd, interp, TCL_OK);
2252 ** $db function NAME [-argcount N] SCRIPT
2254 ** Create a new SQL function called NAME. Whenever that function is
2255 ** called, invoke SCRIPT to evaluate the function.
2263 const char *z = Tcl_GetString(objv[3]);
2264 int n = strlen30(z);
2265 if( n>2 && strncmp(z, "-argcount",n)==0 ){
2266 if( Tcl_GetIntFromObj(interp, objv[4], &nArg) ) return TCL_ERROR;
2268 Tcl_AppendResult(interp, "number of arguments must be non-negative",
2274 }else if( objc!=4 ){
2275 Tcl_WrongNumArgs(interp, 2, objv, "NAME [-argcount N] SCRIPT");
2280 zName = Tcl_GetStringFromObj(objv[2], 0);
2281 pFunc = findSqlFunc(pDb, zName);
2282 if( pFunc==0 ) return TCL_ERROR;
2283 if( pFunc->pScript ){
2284 Tcl_DecrRefCount(pFunc->pScript);
2286 pFunc->pScript = pScript;
2287 Tcl_IncrRefCount(pScript);
2288 pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript);
2289 rc = sqlite3_create_function(pDb->db, zName, nArg, SQLITE_UTF8,
2290 pFunc, tclSqlFunc, 0, 0);
2291 if( rc!=SQLITE_OK ){
2293 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
2299 ** $db incrblob ?-readonly? ?DB? TABLE COLUMN ROWID
2302 #ifdef SQLITE_OMIT_INCRBLOB
2303 Tcl_AppendResult(interp, "incrblob not available in this build", 0);
2307 const char *zDb = "main";
2309 const char *zColumn;
2312 /* Check for the -readonly option */
2313 if( objc>3 && strcmp(Tcl_GetString(objv[2]), "-readonly")==0 ){
2317 if( objc!=(5+isReadonly) && objc!=(6+isReadonly) ){
2318 Tcl_WrongNumArgs(interp, 2, objv, "?-readonly? ?DB? TABLE COLUMN ROWID");
2322 if( objc==(6+isReadonly) ){
2323 zDb = Tcl_GetString(objv[2]);
2325 zTable = Tcl_GetString(objv[objc-3]);
2326 zColumn = Tcl_GetString(objv[objc-2]);
2327 rc = Tcl_GetWideIntFromObj(interp, objv[objc-1], &iRow);
2330 rc = createIncrblobChannel(
2331 interp, pDb, zDb, zTable, zColumn, iRow, isReadonly
2341 ** Interrupt the execution of the inner-most SQL interpreter. This
2342 ** causes the SQL statement to return an error of SQLITE_INTERRUPT.
2344 case DB_INTERRUPT: {
2345 sqlite3_interrupt(pDb->db);
2350 ** $db nullvalue ?STRING?
2352 ** Change text used when a NULL comes back from the database. If ?STRING?
2353 ** is not present, then the current string used for NULL is returned.
2354 ** If STRING is present, then STRING is returned.
2357 case DB_NULLVALUE: {
2358 if( objc!=2 && objc!=3 ){
2359 Tcl_WrongNumArgs(interp, 2, objv, "NULLVALUE");
2364 char *zNull = Tcl_GetStringFromObj(objv[2], &len);
2366 Tcl_Free(pDb->zNull);
2368 if( zNull && len>0 ){
2369 pDb->zNull = Tcl_Alloc( len + 1 );
2370 strncpy(pDb->zNull, zNull, len);
2371 pDb->zNull[len] = '\0';
2376 Tcl_SetObjResult(interp, dbTextToObj(pDb->zNull));
2381 ** $db last_insert_rowid
2383 ** Return an integer which is the ROWID for the most recent insert.
2385 case DB_LAST_INSERT_ROWID: {
2389 Tcl_WrongNumArgs(interp, 2, objv, "");
2392 rowid = sqlite3_last_insert_rowid(pDb->db);
2393 pResult = Tcl_GetObjResult(interp);
2394 Tcl_SetWideIntObj(pResult, rowid);
2399 ** The DB_ONECOLUMN method is implemented together with DB_EXISTS.
2402 /* $db progress ?N CALLBACK?
2404 ** Invoke the given callback every N virtual machine opcodes while executing
2409 if( pDb->zProgress ){
2410 Tcl_AppendResult(interp, pDb->zProgress, 0);
2412 }else if( objc==4 ){
2416 if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &N) ){
2419 if( pDb->zProgress ){
2420 Tcl_Free(pDb->zProgress);
2422 zProgress = Tcl_GetStringFromObj(objv[3], &len);
2423 if( zProgress && len>0 ){
2424 pDb->zProgress = Tcl_Alloc( len + 1 );
2425 memcpy(pDb->zProgress, zProgress, len+1);
2429 #ifndef SQLITE_OMIT_PROGRESS_CALLBACK
2430 if( pDb->zProgress ){
2431 pDb->interp = interp;
2432 sqlite3_progress_handler(pDb->db, N, DbProgressHandler, pDb);
2434 sqlite3_progress_handler(pDb->db, 0, 0, 0);
2438 Tcl_WrongNumArgs(interp, 2, objv, "N CALLBACK");
2444 /* $db profile ?CALLBACK?
2446 ** Make arrangements to invoke the CALLBACK routine after each SQL statement
2447 ** that has run. The text of the SQL and the amount of elapse time are
2448 ** appended to CALLBACK before the script is run.
2452 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
2454 }else if( objc==2 ){
2455 if( pDb->zProfile ){
2456 Tcl_AppendResult(interp, pDb->zProfile, 0);
2461 if( pDb->zProfile ){
2462 Tcl_Free(pDb->zProfile);
2464 zProfile = Tcl_GetStringFromObj(objv[2], &len);
2465 if( zProfile && len>0 ){
2466 pDb->zProfile = Tcl_Alloc( len + 1 );
2467 memcpy(pDb->zProfile, zProfile, len+1);
2471 #if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
2472 if( pDb->zProfile ){
2473 pDb->interp = interp;
2474 sqlite3_profile(pDb->db, DbProfileHandler, pDb);
2476 sqlite3_profile(pDb->db, 0, 0);
2486 ** Change the encryption key on the currently open database.
2492 Tcl_WrongNumArgs(interp, 2, objv, "KEY");
2495 pKey = Tcl_GetByteArrayFromObj(objv[2], &nKey);
2496 #ifdef SQLITE_HAS_CODEC
2497 rc = sqlite3_rekey(pDb->db, pKey, nKey);
2499 Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
2506 /* $db restore ?DATABASE? FILENAME
2508 ** Open a database file named FILENAME. Transfer the content
2509 ** of FILENAME into the local database DATABASE (default: "main").
2512 const char *zSrcFile;
2513 const char *zDestDb;
2515 sqlite3_backup *pBackup;
2520 zSrcFile = Tcl_GetString(objv[2]);
2521 }else if( objc==4 ){
2522 zDestDb = Tcl_GetString(objv[2]);
2523 zSrcFile = Tcl_GetString(objv[3]);
2525 Tcl_WrongNumArgs(interp, 2, objv, "?DATABASE? FILENAME");
2528 rc = sqlite3_open_v2(zSrcFile, &pSrc, SQLITE_OPEN_READONLY, 0);
2529 if( rc!=SQLITE_OK ){
2530 Tcl_AppendResult(interp, "cannot open source database: ",
2531 sqlite3_errmsg(pSrc), (char*)0);
2532 sqlite3_close(pSrc);
2535 pBackup = sqlite3_backup_init(pDb->db, zDestDb, pSrc, "main");
2537 Tcl_AppendResult(interp, "restore failed: ",
2538 sqlite3_errmsg(pDb->db), (char*)0);
2539 sqlite3_close(pSrc);
2542 while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK
2543 || rc==SQLITE_BUSY ){
2544 if( rc==SQLITE_BUSY ){
2545 if( nTimeout++ >= 3 ) break;
2549 sqlite3_backup_finish(pBackup);
2550 if( rc==SQLITE_DONE ){
2552 }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){
2553 Tcl_AppendResult(interp, "restore failed: source database busy",
2557 Tcl_AppendResult(interp, "restore failed: ",
2558 sqlite3_errmsg(pDb->db), (char*)0);
2561 sqlite3_close(pSrc);
2566 ** $db status (step|sort|autoindex)
2568 ** Display SQLITE_STMTSTATUS_FULLSCAN_STEP or
2569 ** SQLITE_STMTSTATUS_SORT for the most recent eval.
2575 Tcl_WrongNumArgs(interp, 2, objv, "(step|sort|autoindex)");
2578 zOp = Tcl_GetString(objv[2]);
2579 if( strcmp(zOp, "step")==0 ){
2581 }else if( strcmp(zOp, "sort")==0 ){
2583 }else if( strcmp(zOp, "autoindex")==0 ){
2586 Tcl_AppendResult(interp,
2587 "bad argument: should be autoindex, step, or sort",
2591 Tcl_SetObjResult(interp, Tcl_NewIntObj(v));
2596 ** $db timeout MILLESECONDS
2598 ** Delay for the number of milliseconds specified when a file is locked.
2603 Tcl_WrongNumArgs(interp, 2, objv, "MILLISECONDS");
2606 if( Tcl_GetIntFromObj(interp, objv[2], &ms) ) return TCL_ERROR;
2607 sqlite3_busy_timeout(pDb->db, ms);
2612 ** $db total_changes
2614 ** Return the number of rows that were modified, inserted, or deleted
2615 ** since the database handle was created.
2617 case DB_TOTAL_CHANGES: {
2620 Tcl_WrongNumArgs(interp, 2, objv, "");
2623 pResult = Tcl_GetObjResult(interp);
2624 Tcl_SetIntObj(pResult, sqlite3_total_changes(pDb->db));
2628 /* $db trace ?CALLBACK?
2630 ** Make arrangements to invoke the CALLBACK routine for each SQL statement
2631 ** that is executed. The text of the SQL is appended to CALLBACK before
2636 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
2638 }else if( objc==2 ){
2640 Tcl_AppendResult(interp, pDb->zTrace, 0);
2646 Tcl_Free(pDb->zTrace);
2648 zTrace = Tcl_GetStringFromObj(objv[2], &len);
2649 if( zTrace && len>0 ){
2650 pDb->zTrace = Tcl_Alloc( len + 1 );
2651 memcpy(pDb->zTrace, zTrace, len+1);
2655 #if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
2657 pDb->interp = interp;
2658 sqlite3_trace(pDb->db, DbTraceHandler, pDb);
2660 sqlite3_trace(pDb->db, 0, 0);
2667 /* $db transaction [-deferred|-immediate|-exclusive] SCRIPT
2669 ** Start a new transaction (if we are not already in the midst of a
2670 ** transaction) and execute the TCL script SCRIPT. After SCRIPT
2671 ** completes, either commit the transaction or roll it back if SCRIPT
2672 ** throws an exception. Or if no new transation was started, do nothing.
2673 ** pass the exception on up the stack.
2675 ** This command was inspired by Dave Thomas's talk on Ruby at the
2676 ** 2005 O'Reilly Open Source Convention (OSCON).
2678 case DB_TRANSACTION: {
2680 const char *zBegin = "SAVEPOINT _tcl_transaction";
2681 if( objc!=3 && objc!=4 ){
2682 Tcl_WrongNumArgs(interp, 2, objv, "[TYPE] SCRIPT");
2686 if( pDb->nTransaction==0 && objc==4 ){
2687 static const char *TTYPE_strs[] = {
2688 "deferred", "exclusive", "immediate", 0
2691 TTYPE_DEFERRED, TTYPE_EXCLUSIVE, TTYPE_IMMEDIATE
2694 if( Tcl_GetIndexFromObj(interp, objv[2], TTYPE_strs, "transaction type",
2698 switch( (enum TTYPE_enum)ttype ){
2699 case TTYPE_DEFERRED: /* no-op */; break;
2700 case TTYPE_EXCLUSIVE: zBegin = "BEGIN EXCLUSIVE"; break;
2701 case TTYPE_IMMEDIATE: zBegin = "BEGIN IMMEDIATE"; break;
2704 pScript = objv[objc-1];
2706 /* Run the SQLite BEGIN command to open a transaction or savepoint. */
2708 rc = sqlite3_exec(pDb->db, zBegin, 0, 0, 0);
2710 if( rc!=SQLITE_OK ){
2711 Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), 0);
2714 pDb->nTransaction++;
2716 /* If using NRE, schedule a callback to invoke the script pScript, then
2717 ** a second callback to commit (or rollback) the transaction or savepoint
2718 ** opened above. If not using NRE, evaluate the script directly, then
2719 ** call function DbTransPostCmd() to commit (or rollback) the transaction
2722 Tcl_NRAddCallback(interp, DbTransPostCmd, cd, 0, 0, 0);
2723 Tcl_NREvalObj(interp, pScript, 0);
2725 rc = DbTransPostCmd(&cd, interp, Tcl_EvalObjEx(interp, pScript, 0));
2731 ** $db unlock_notify ?script?
2733 case DB_UNLOCK_NOTIFY: {
2734 #ifndef SQLITE_ENABLE_UNLOCK_NOTIFY
2735 Tcl_AppendResult(interp, "unlock_notify not available in this build", 0);
2738 if( objc!=2 && objc!=3 ){
2739 Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?");
2742 void (*xNotify)(void **, int) = 0;
2743 void *pNotifyArg = 0;
2745 if( pDb->pUnlockNotify ){
2746 Tcl_DecrRefCount(pDb->pUnlockNotify);
2747 pDb->pUnlockNotify = 0;
2751 xNotify = DbUnlockNotify;
2752 pNotifyArg = (void *)pDb;
2753 pDb->pUnlockNotify = objv[2];
2754 Tcl_IncrRefCount(pDb->pUnlockNotify);
2757 if( sqlite3_unlock_notify(pDb->db, xNotify, pNotifyArg) ){
2758 Tcl_AppendResult(interp, sqlite3_errmsg(pDb->db), 0);
2767 ** $db wal_hook ?script?
2768 ** $db update_hook ?script?
2769 ** $db rollback_hook ?script?
2772 case DB_UPDATE_HOOK:
2773 case DB_ROLLBACK_HOOK: {
2775 /* set ppHook to point at pUpdateHook or pRollbackHook, depending on
2776 ** whether [$db update_hook] or [$db rollback_hook] was invoked.
2779 if( choice==DB_UPDATE_HOOK ){
2780 ppHook = &pDb->pUpdateHook;
2781 }else if( choice==DB_WAL_HOOK ){
2782 ppHook = &pDb->pWalHook;
2784 ppHook = &pDb->pRollbackHook;
2787 if( objc!=2 && objc!=3 ){
2788 Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?");
2792 Tcl_SetObjResult(interp, *ppHook);
2794 Tcl_DecrRefCount(*ppHook);
2799 assert( !(*ppHook) );
2800 if( Tcl_GetCharLength(objv[2])>0 ){
2802 Tcl_IncrRefCount(*ppHook);
2806 sqlite3_update_hook(pDb->db, (pDb->pUpdateHook?DbUpdateHandler:0), pDb);
2807 sqlite3_rollback_hook(pDb->db,(pDb->pRollbackHook?DbRollbackHandler:0),pDb);
2808 sqlite3_wal_hook(pDb->db,(pDb->pWalHook?DbWalHandler:0),pDb);
2815 ** Return the version string for this database.
2818 Tcl_SetResult(interp, (char *)sqlite3_libversion(), TCL_STATIC);
2823 } /* End of the SWITCH statement */
2829 ** Adaptor that provides an objCmd interface to the NRE-enabled
2830 ** interface implementation.
2832 static int DbObjCmdAdaptor(
2838 return Tcl_NRCallObjProc(interp, DbObjCmd, cd, objc, objv);
2840 #endif /* SQLITE_TCL_NRE */
2843 ** sqlite3 DBNAME FILENAME ?-vfs VFSNAME? ?-key KEY? ?-readonly BOOLEAN?
2844 ** ?-create BOOLEAN? ?-nomutex BOOLEAN?
2846 ** This is the main Tcl command. When the "sqlite" Tcl command is
2847 ** invoked, this routine runs to process that command.
2849 ** The first argument, DBNAME, is an arbitrary name for a new
2850 ** database connection. This command creates a new command named
2851 ** DBNAME that is used to control that connection. The database
2852 ** connection is deleted when the DBNAME command is deleted.
2854 ** The second argument is the name of the database file.
2857 static int DbMain(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
2865 const char *zVfs = 0;
2867 #ifdef SQLITE_HAS_CODEC
2870 Tcl_DString translatedFilename;
2872 /* In normal use, each TCL interpreter runs in a single thread. So
2873 ** by default, we can turn of mutexing on SQLite database connections.
2874 ** However, for testing purposes it is useful to have mutexes turned
2875 ** on. So, by default, mutexes default off. But if compiled with
2876 ** SQLITE_TCL_DEFAULT_FULLMUTEX then mutexes default on.
2878 #ifdef SQLITE_TCL_DEFAULT_FULLMUTEX
2879 flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX;
2881 flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_NOMUTEX;
2885 zArg = Tcl_GetStringFromObj(objv[1], 0);
2886 if( strcmp(zArg,"-version")==0 ){
2887 Tcl_AppendResult(interp,sqlite3_version,0);
2890 if( strcmp(zArg,"-has-codec")==0 ){
2891 #ifdef SQLITE_HAS_CODEC
2892 Tcl_AppendResult(interp,"1",0);
2894 Tcl_AppendResult(interp,"0",0);
2899 for(i=3; i+1<objc; i+=2){
2900 zArg = Tcl_GetString(objv[i]);
2901 if( strcmp(zArg,"-key")==0 ){
2902 pKey = Tcl_GetByteArrayFromObj(objv[i+1], &nKey);
2903 }else if( strcmp(zArg, "-vfs")==0 ){
2904 zVfs = Tcl_GetString(objv[i+1]);
2905 }else if( strcmp(zArg, "-readonly")==0 ){
2907 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2909 flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
2910 flags |= SQLITE_OPEN_READONLY;
2912 flags &= ~SQLITE_OPEN_READONLY;
2913 flags |= SQLITE_OPEN_READWRITE;
2915 }else if( strcmp(zArg, "-create")==0 ){
2917 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2918 if( b && (flags & SQLITE_OPEN_READONLY)==0 ){
2919 flags |= SQLITE_OPEN_CREATE;
2921 flags &= ~SQLITE_OPEN_CREATE;
2923 }else if( strcmp(zArg, "-nomutex")==0 ){
2925 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2927 flags |= SQLITE_OPEN_NOMUTEX;
2928 flags &= ~SQLITE_OPEN_FULLMUTEX;
2930 flags &= ~SQLITE_OPEN_NOMUTEX;
2932 }else if( strcmp(zArg, "-fullmutex")==0 ){
2934 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2936 flags |= SQLITE_OPEN_FULLMUTEX;
2937 flags &= ~SQLITE_OPEN_NOMUTEX;
2939 flags &= ~SQLITE_OPEN_FULLMUTEX;
2942 Tcl_AppendResult(interp, "unknown option: ", zArg, (char*)0);
2946 if( objc<3 || (objc&1)!=1 ){
2947 Tcl_WrongNumArgs(interp, 1, objv,
2948 "HANDLE FILENAME ?-vfs VFSNAME? ?-readonly BOOLEAN? ?-create BOOLEAN?"
2949 " ?-nomutex BOOLEAN? ?-fullmutex BOOLEAN?"
2950 #ifdef SQLITE_HAS_CODEC
2957 p = (SqliteDb*)Tcl_Alloc( sizeof(*p) );
2959 Tcl_SetResult(interp, "malloc failed", TCL_STATIC);
2962 memset(p, 0, sizeof(*p));
2963 zFile = Tcl_GetStringFromObj(objv[2], 0);
2964 zFile = Tcl_TranslateFileName(interp, zFile, &translatedFilename);
2965 sqlite3_open_v2(zFile, &p->db, flags, zVfs);
2966 Tcl_DStringFree(&translatedFilename);
2967 if( SQLITE_OK!=sqlite3_errcode(p->db) ){
2968 zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(p->db));
2969 sqlite3_close(p->db);
2972 #ifdef SQLITE_HAS_CODEC
2974 rc = sqlite3_key(p->db, pKey, nKey);
2976 zErrMsg = sqlite3_mprintf("%s", sqlite3ErrStr(rc));
2977 sqlite3_close(p->db);
2984 Tcl_SetResult(interp, zErrMsg, TCL_VOLATILE);
2986 sqlite3_free(zErrMsg);
2989 p->maxStmt = NUM_PREPARED_STMTS;
2991 zArg = Tcl_GetStringFromObj(objv[1], 0);
2993 Tcl_NRCreateCommand(interp, zArg, DbObjCmdAdaptor, DbObjCmd,
2994 (char*)p, DbDeleteCmd);
2996 Tcl_CreateObjCommand(interp, zArg, DbObjCmd, (char*)p, DbDeleteCmd);
3002 ** Provide a dummy Tcl_InitStubs if we are using this as a static
3005 #ifndef USE_TCL_STUBS
3006 # undef Tcl_InitStubs
3007 # define Tcl_InitStubs(a,b,c)
3011 ** Make sure we have a PACKAGE_VERSION macro defined. This will be
3012 ** defined automatically by the TEA makefile. But other makefiles
3013 ** do not define it.
3015 #ifndef PACKAGE_VERSION
3016 # define PACKAGE_VERSION SQLITE_VERSION
3020 ** Initialize this module.
3022 ** This Tcl module contains only a single new Tcl command named "sqlite".
3023 ** (Hence there is no namespace. There is no point in using a namespace
3024 ** if the extension only supplies one new name!) The "sqlite" command is
3025 ** used to open a new SQLite database. See the DbMain() routine above
3026 ** for additional information.
3028 ** The EXTERN macros are required by TCL in order to work on windows.
3030 EXTERN int Sqlite3_Init(Tcl_Interp *interp){
3031 Tcl_InitStubs(interp, "8.4", 0);
3032 Tcl_CreateObjCommand(interp, "sqlite3", (Tcl_ObjCmdProc*)DbMain, 0, 0);
3033 Tcl_PkgProvide(interp, "sqlite3", PACKAGE_VERSION);
3035 #ifndef SQLITE_3_SUFFIX_ONLY
3036 /* The "sqlite" alias is undocumented. It is here only to support
3037 ** legacy scripts. All new scripts should use only the "sqlite3"
3040 Tcl_CreateObjCommand(interp, "sqlite", (Tcl_ObjCmdProc*)DbMain, 0, 0);
3045 EXTERN int Tclsqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
3046 EXTERN int Sqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
3047 EXTERN int Tclsqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
3048 EXTERN int Sqlite3_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3049 EXTERN int Tclsqlite3_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3050 EXTERN int Sqlite3_SafeUnload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3051 EXTERN int Tclsqlite3_SafeUnload(Tcl_Interp *interp, int flags){ return TCL_OK;}
3054 #ifndef SQLITE_3_SUFFIX_ONLY
3055 int Sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
3056 int Tclsqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
3057 int Sqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
3058 int Tclsqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
3059 int Sqlite_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3060 int Tclsqlite_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3061 int Sqlite_SafeUnload(Tcl_Interp *interp, int flags){ return TCL_OK; }
3062 int Tclsqlite_SafeUnload(Tcl_Interp *interp, int flags){ return TCL_OK;}
3066 /*****************************************************************************
3067 ** All of the code that follows is used to build standalone TCL interpreters
3068 ** that are statically linked with SQLite. Enable these by compiling
3069 ** with -DTCLSH=n where n can be 1 or 2. An n of 1 generates a standard
3070 ** tclsh but with SQLite built in. An n of 2 generates the SQLite space
3071 ** analysis program.
3074 #if defined(SQLITE_TEST) || defined(SQLITE_TCLMD5)
3076 * This code implements the MD5 message-digest algorithm.
3077 * The algorithm is due to Ron Rivest. This code was
3078 * written by Colin Plumb in 1993, no copyright is claimed.
3079 * This code is in the public domain; do with it what you wish.
3081 * Equivalent code is available from RSA Data Security, Inc.
3082 * This code has been tested against that, and is equivalent,
3083 * except that you don't need to include two pages of legalese
3086 * To compute the message digest of a chunk of bytes, declare an
3087 * MD5Context structure, pass it to MD5Init, call MD5Update as
3088 * needed on buffers full of bytes, and then call MD5Final, which
3089 * will fill a supplied 16-byte array with the digest.
3093 * If compiled on a machine that doesn't have a 32-bit integer,
3094 * you just set "uint32" to the appropriate datatype for an
3095 * unsigned 32-bit integer. For example:
3097 * cc -Duint32='unsigned long' md5.c
3101 # define uint32 unsigned int
3108 unsigned char in[64];
3110 typedef struct MD5Context MD5Context;
3113 * Note: this code is harmless on little-endian machines.
3115 static void byteReverse (unsigned char *buf, unsigned longs){
3118 t = (uint32)((unsigned)buf[3]<<8 | buf[2]) << 16 |
3119 ((unsigned)buf[1]<<8 | buf[0]);
3124 /* The four core functions - F1 is optimized somewhat */
3126 /* #define F1(x, y, z) (x & y | ~x & z) */
3127 #define F1(x, y, z) (z ^ (x & (y ^ z)))
3128 #define F2(x, y, z) F1(z, x, y)
3129 #define F3(x, y, z) (x ^ y ^ z)
3130 #define F4(x, y, z) (y ^ (x | ~z))
3132 /* This is the central step in the MD5 algorithm. */
3133 #define MD5STEP(f, w, x, y, z, data, s) \
3134 ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
3137 * The core of the MD5 algorithm, this alters an existing MD5 hash to
3138 * reflect the addition of 16 longwords of new data. MD5Update blocks
3139 * the data and converts bytes into longwords for this routine.
3141 static void MD5Transform(uint32 buf[4], const uint32 in[16]){
3142 register uint32 a, b, c, d;
3149 MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478, 7);
3150 MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12);
3151 MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17);
3152 MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22);
3153 MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf, 7);
3154 MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12);
3155 MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17);
3156 MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22);
3157 MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8, 7);
3158 MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12);
3159 MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17);
3160 MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22);
3161 MD5STEP(F1, a, b, c, d, in[12]+0x6b901122, 7);
3162 MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12);
3163 MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17);
3164 MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22);
3166 MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562, 5);
3167 MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340, 9);
3168 MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14);
3169 MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20);
3170 MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d, 5);
3171 MD5STEP(F2, d, a, b, c, in[10]+0x02441453, 9);
3172 MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14);
3173 MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20);
3174 MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6, 5);
3175 MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6, 9);
3176 MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14);
3177 MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20);
3178 MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905, 5);
3179 MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8, 9);
3180 MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14);
3181 MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20);
3183 MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942, 4);
3184 MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11);
3185 MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16);
3186 MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23);
3187 MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44, 4);
3188 MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11);
3189 MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16);
3190 MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23);
3191 MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6, 4);
3192 MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11);
3193 MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16);
3194 MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23);
3195 MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039, 4);
3196 MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11);
3197 MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16);
3198 MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23);
3200 MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244, 6);
3201 MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10);
3202 MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15);
3203 MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21);
3204 MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3, 6);
3205 MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10);
3206 MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15);
3207 MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21);
3208 MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f, 6);
3209 MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10);
3210 MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15);
3211 MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21);
3212 MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82, 6);
3213 MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10);
3214 MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15);
3215 MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21);
3224 * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
3225 * initialization constants.
3227 static void MD5Init(MD5Context *ctx){
3229 ctx->buf[0] = 0x67452301;
3230 ctx->buf[1] = 0xefcdab89;
3231 ctx->buf[2] = 0x98badcfe;
3232 ctx->buf[3] = 0x10325476;
3238 * Update context to reflect the concatenation of another buffer full
3242 void MD5Update(MD5Context *ctx, const unsigned char *buf, unsigned int len){
3245 /* Update bitcount */
3248 if ((ctx->bits[0] = t + ((uint32)len << 3)) < t)
3249 ctx->bits[1]++; /* Carry from low to high */
3250 ctx->bits[1] += len >> 29;
3252 t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
3254 /* Handle any leading odd-sized chunks */
3257 unsigned char *p = (unsigned char *)ctx->in + t;
3261 memcpy(p, buf, len);
3265 byteReverse(ctx->in, 16);
3266 MD5Transform(ctx->buf, (uint32 *)ctx->in);
3271 /* Process data in 64-byte chunks */
3274 memcpy(ctx->in, buf, 64);
3275 byteReverse(ctx->in, 16);
3276 MD5Transform(ctx->buf, (uint32 *)ctx->in);
3281 /* Handle any remaining bytes of data. */
3283 memcpy(ctx->in, buf, len);
3287 * Final wrapup - pad to 64-byte boundary with the bit pattern
3288 * 1 0* (64-bit count of bits processed, MSB-first)
3290 static void MD5Final(unsigned char digest[16], MD5Context *ctx){
3294 /* Compute number of bytes mod 64 */
3295 count = (ctx->bits[0] >> 3) & 0x3F;
3297 /* Set the first char of padding to 0x80. This is safe since there is
3298 always at least one byte free */
3299 p = ctx->in + count;
3302 /* Bytes of padding needed to make 64 bytes */
3303 count = 64 - 1 - count;
3305 /* Pad out to 56 mod 64 */
3307 /* Two lots of padding: Pad the first block to 64 bytes */
3308 memset(p, 0, count);
3309 byteReverse(ctx->in, 16);
3310 MD5Transform(ctx->buf, (uint32 *)ctx->in);
3312 /* Now fill the next block with 56 bytes */
3313 memset(ctx->in, 0, 56);
3315 /* Pad block to 56 bytes */
3316 memset(p, 0, count-8);
3318 byteReverse(ctx->in, 14);
3320 /* Append length in bits and transform */
3321 ((uint32 *)ctx->in)[ 14 ] = ctx->bits[0];
3322 ((uint32 *)ctx->in)[ 15 ] = ctx->bits[1];
3324 MD5Transform(ctx->buf, (uint32 *)ctx->in);
3325 byteReverse((unsigned char *)ctx->buf, 4);
3326 memcpy(digest, ctx->buf, 16);
3327 memset(ctx, 0, sizeof(ctx)); /* In case it is sensitive */
3331 ** Convert a 128-bit MD5 digest into a 32-digit base-16 number.
3333 static void MD5DigestToBase16(unsigned char *digest, char *zBuf){
3334 static char const zEncode[] = "0123456789abcdef";
3337 for(j=i=0; i<16; i++){
3339 zBuf[j++] = zEncode[(a>>4)&0xf];
3340 zBuf[j++] = zEncode[a & 0xf];
3347 ** Convert a 128-bit MD5 digest into sequency of eight 5-digit integers
3348 ** each representing 16 bits of the digest and separated from each
3349 ** other by a "-" character.
3351 static void MD5DigestToBase10x8(unsigned char digest[16], char zDigest[50]){
3354 for(i=j=0; i<16; i+=2){
3355 x = digest[i]*256 + digest[i+1];
3356 if( i>0 ) zDigest[j++] = '-';
3357 sprintf(&zDigest[j], "%05u", x);
3364 ** A TCL command for md5. The argument is the text to be hashed. The
3365 ** Result is the hash in base64.
3367 static int md5_cmd(void*cd, Tcl_Interp *interp, int argc, const char **argv){
3369 unsigned char digest[16];
3371 void (*converter)(unsigned char*, char*);
3374 Tcl_AppendResult(interp,"wrong # args: should be \"", argv[0],
3379 MD5Update(&ctx, (unsigned char*)argv[1], (unsigned)strlen(argv[1]));
3380 MD5Final(digest, &ctx);
3381 converter = (void(*)(unsigned char*,char*))cd;
3382 converter(digest, zBuf);
3383 Tcl_AppendResult(interp, zBuf, (char*)0);
3388 ** A TCL command to take the md5 hash of a file. The argument is the
3389 ** name of the file.
3391 static int md5file_cmd(void*cd, Tcl_Interp*interp, int argc, const char **argv){
3394 void (*converter)(unsigned char*, char*);
3395 unsigned char digest[16];
3399 Tcl_AppendResult(interp,"wrong # args: should be \"", argv[0],
3403 in = fopen(argv[1],"rb");
3405 Tcl_AppendResult(interp,"unable to open file \"", argv[1],
3406 "\" for reading", 0);
3412 n = fread(zBuf, 1, sizeof(zBuf), in);
3414 MD5Update(&ctx, (unsigned char*)zBuf, (unsigned)n);
3417 MD5Final(digest, &ctx);
3418 converter = (void(*)(unsigned char*,char*))cd;
3419 converter(digest, zBuf);
3420 Tcl_AppendResult(interp, zBuf, (char*)0);
3425 ** Register the four new TCL commands for generating MD5 checksums
3426 ** with the TCL interpreter.
3428 int Md5_Init(Tcl_Interp *interp){
3429 Tcl_CreateCommand(interp, "md5", (Tcl_CmdProc*)md5_cmd,
3430 MD5DigestToBase16, 0);
3431 Tcl_CreateCommand(interp, "md5-10x8", (Tcl_CmdProc*)md5_cmd,
3432 MD5DigestToBase10x8, 0);
3433 Tcl_CreateCommand(interp, "md5file", (Tcl_CmdProc*)md5file_cmd,
3434 MD5DigestToBase16, 0);
3435 Tcl_CreateCommand(interp, "md5file-10x8", (Tcl_CmdProc*)md5file_cmd,
3436 MD5DigestToBase10x8, 0);
3439 #endif /* defined(SQLITE_TEST) || defined(SQLITE_TCLMD5) */
3441 #if defined(SQLITE_TEST)
3443 ** During testing, the special md5sum() aggregate function is available.
3444 ** inside SQLite. The following routines implement that function.
3446 static void md5step(sqlite3_context *context, int argc, sqlite3_value **argv){
3449 if( argc<1 ) return;
3450 p = sqlite3_aggregate_context(context, sizeof(*p));
3455 for(i=0; i<argc; i++){
3456 const char *zData = (char*)sqlite3_value_text(argv[i]);
3458 MD5Update(p, (unsigned char*)zData, strlen(zData));
3462 static void md5finalize(sqlite3_context *context){
3464 unsigned char digest[16];
3466 p = sqlite3_aggregate_context(context, sizeof(*p));
3468 MD5DigestToBase16(digest, zBuf);
3469 sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
3471 int Md5_Register(sqlite3 *db){
3472 int rc = sqlite3_create_function(db, "md5sum", -1, SQLITE_UTF8, 0, 0,
3473 md5step, md5finalize);
3474 sqlite3_overload_function(db, "md5sum", -1); /* To exercise this API */
3477 #endif /* defined(SQLITE_TEST) */
3481 ** If the macro TCLSH is one, then put in code this for the
3482 ** "main" routine that will initialize Tcl and take input from
3483 ** standard input, or if a file is named on the command line
3484 ** the TCL interpreter reads and evaluates that file.
3487 static char zMainloop[] =
3489 "while {![eof stdin]} {\n"
3490 "if {$line!=\"\"} {\n"
3491 "puts -nonewline \"> \"\n"
3493 "puts -nonewline \"% \"\n"
3496 "append line [gets stdin]\n"
3497 "if {[info complete $line]} {\n"
3498 "if {[catch {uplevel #0 $line} result]} {\n"
3499 "puts stderr \"Error: $result\"\n"
3500 "} elseif {$result!=\"\"} {\n"
3511 static char zMainloop[] =
3512 #include "spaceanal_tcl.h"
3517 static void init_all(Tcl_Interp *);
3518 static int init_all_cmd(
3522 Tcl_Obj *CONST objv[]
3527 Tcl_WrongNumArgs(interp, 1, objv, "SLAVE");
3531 slave = Tcl_GetSlave(interp, Tcl_GetString(objv[1]));
3542 ** Configure the interpreter passed as the first argument to have access
3543 ** to the commands and linked variables that make up:
3545 ** * the [sqlite3] extension itself,
3547 ** * If SQLITE_TCLMD5 or SQLITE_TEST is defined, the Md5 commands, and
3549 ** * If SQLITE_TEST is set, the various test interfaces used by the Tcl
3552 static void init_all(Tcl_Interp *interp){
3553 Sqlite3_Init(interp);
3555 #if defined(SQLITE_TEST) || defined(SQLITE_TCLMD5)
3561 extern int Sqliteconfig_Init(Tcl_Interp*);
3562 extern int Sqlitetest1_Init(Tcl_Interp*);
3563 extern int Sqlitetest2_Init(Tcl_Interp*);
3564 extern int Sqlitetest3_Init(Tcl_Interp*);
3565 extern int Sqlitetest4_Init(Tcl_Interp*);
3566 extern int Sqlitetest5_Init(Tcl_Interp*);
3567 extern int Sqlitetest6_Init(Tcl_Interp*);
3568 extern int Sqlitetest7_Init(Tcl_Interp*);
3569 extern int Sqlitetest8_Init(Tcl_Interp*);
3570 extern int Sqlitetest9_Init(Tcl_Interp*);
3571 extern int Sqlitetestasync_Init(Tcl_Interp*);
3572 extern int Sqlitetest_autoext_Init(Tcl_Interp*);
3573 extern int Sqlitetest_demovfs_Init(Tcl_Interp *);
3574 extern int Sqlitetest_func_Init(Tcl_Interp*);
3575 extern int Sqlitetest_hexio_Init(Tcl_Interp*);
3576 extern int Sqlitetest_init_Init(Tcl_Interp*);
3577 extern int Sqlitetest_malloc_Init(Tcl_Interp*);
3578 extern int Sqlitetest_mutex_Init(Tcl_Interp*);
3579 extern int Sqlitetestschema_Init(Tcl_Interp*);
3580 extern int Sqlitetestsse_Init(Tcl_Interp*);
3581 extern int Sqlitetesttclvar_Init(Tcl_Interp*);
3582 extern int SqlitetestThread_Init(Tcl_Interp*);
3583 extern int SqlitetestOnefile_Init();
3584 extern int SqlitetestOsinst_Init(Tcl_Interp*);
3585 extern int Sqlitetestbackup_Init(Tcl_Interp*);
3586 extern int Sqlitetestintarray_Init(Tcl_Interp*);
3587 extern int Sqlitetestvfs_Init(Tcl_Interp *);
3588 extern int SqlitetestStat_Init(Tcl_Interp*);
3589 extern int Sqlitetestrtree_Init(Tcl_Interp*);
3590 extern int Sqlitequota_Init(Tcl_Interp*);
3591 extern int Sqlitemultiplex_Init(Tcl_Interp*);
3592 extern int SqliteSuperlock_Init(Tcl_Interp*);
3593 extern int SqlitetestSyscall_Init(Tcl_Interp*);
3594 extern int Sqlitetestfuzzer_Init(Tcl_Interp*);
3595 extern int Sqlitetestwholenumber_Init(Tcl_Interp*);
3597 #ifdef SQLITE_ENABLE_ZIPVFS
3598 extern int Zipvfs_Init(Tcl_Interp*);
3599 Zipvfs_Init(interp);
3602 Sqliteconfig_Init(interp);
3603 Sqlitetest1_Init(interp);
3604 Sqlitetest2_Init(interp);
3605 Sqlitetest3_Init(interp);
3606 Sqlitetest4_Init(interp);
3607 Sqlitetest5_Init(interp);
3608 Sqlitetest6_Init(interp);
3609 Sqlitetest7_Init(interp);
3610 Sqlitetest8_Init(interp);
3611 Sqlitetest9_Init(interp);
3612 Sqlitetestasync_Init(interp);
3613 Sqlitetest_autoext_Init(interp);
3614 Sqlitetest_demovfs_Init(interp);
3615 Sqlitetest_func_Init(interp);
3616 Sqlitetest_hexio_Init(interp);
3617 Sqlitetest_init_Init(interp);
3618 Sqlitetest_malloc_Init(interp);
3619 Sqlitetest_mutex_Init(interp);
3620 Sqlitetestschema_Init(interp);
3621 Sqlitetesttclvar_Init(interp);
3622 SqlitetestThread_Init(interp);
3623 SqlitetestOnefile_Init(interp);
3624 SqlitetestOsinst_Init(interp);
3625 Sqlitetestbackup_Init(interp);
3626 Sqlitetestintarray_Init(interp);
3627 Sqlitetestvfs_Init(interp);
3628 SqlitetestStat_Init(interp);
3629 Sqlitetestrtree_Init(interp);
3630 Sqlitequota_Init(interp);
3631 Sqlitemultiplex_Init(interp);
3632 SqliteSuperlock_Init(interp);
3633 SqlitetestSyscall_Init(interp);
3634 Sqlitetestfuzzer_Init(interp);
3635 Sqlitetestwholenumber_Init(interp);
3637 Tcl_CreateObjCommand(interp,"load_testfixture_extensions",init_all_cmd,0,0);
3640 Sqlitetestsse_Init(interp);
3646 #define TCLSH_MAIN main /* Needed to fake out mktclapp */
3647 int TCLSH_MAIN(int argc, char **argv){
3650 /* Call sqlite3_shutdown() once before doing anything else. This is to
3651 ** test that sqlite3_shutdown() can be safely called by a process before
3652 ** sqlite3_initialize() is. */
3656 sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
3658 Tcl_FindExecutable(argv[0]);
3660 interp = Tcl_CreateInterp();
3665 sqlite3_snprintf(sizeof(zArgc), zArgc, "%d", argc-(3-TCLSH));
3666 Tcl_SetVar(interp,"argc", zArgc, TCL_GLOBAL_ONLY);
3667 Tcl_SetVar(interp,"argv0",argv[1],TCL_GLOBAL_ONLY);
3668 Tcl_SetVar(interp,"argv", "", TCL_GLOBAL_ONLY);
3669 for(i=3-TCLSH; i<argc; i++){
3670 Tcl_SetVar(interp, "argv", argv[i],
3671 TCL_GLOBAL_ONLY | TCL_LIST_ELEMENT | TCL_APPEND_VALUE);
3673 if( TCLSH==1 && Tcl_EvalFile(interp, argv[1])!=TCL_OK ){
3674 const char *zInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
3675 if( zInfo==0 ) zInfo = Tcl_GetStringResult(interp);
3676 fprintf(stderr,"%s: %s\n", *argv, zInfo);
3680 if( TCLSH==2 || argc<=1 ){
3681 Tcl_GlobalEval(interp, zMainloop);