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Overview
Comment:Change the sqlite3_create_function() family of routines to return SQLITE_MISUSE instead of SQLITE_ERROR if their parameters are incorrect. (CVS 6617)
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SHA1: 866f13e28c6fdb98947e1c7a89b7855bb5bbdb96
User & Date: drh 2009-05-07 13:43:49
Context
2009-05-07
14:11
If compiling FTS3 in the amalgamation, include the ctype.h header file. Ticket #3843. (CVS 6618) check-in: 660108ef user: drh tags: trunk
13:43
Change the sqlite3_create_function() family of routines to return SQLITE_MISUSE instead of SQLITE_ERROR if their parameters are incorrect. (CVS 6617) check-in: 866f13e2 user: drh tags: trunk
12:17
Make sure the iteration counter on aggregate functions is reset each time the aggregate is used in an correlated subquery. Ticket #3841. (CVS 6616) check-in: 4a86de35 user: drh tags: trunk
Changes
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Changes to src/main.c. 

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**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.548 2009/05/06 19:03:14 drh Exp $
*/
#include "sqliteInt.h"

#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif
#ifdef SQLITE_ENABLE_RTREE
................................................................................
  assert( sqlite3_mutex_held(db->mutex) );
  if( zFunctionName==0 ||
      (xFunc && (xFinal || xStep)) || 
      (!xFunc && (xFinal && !xStep)) ||
      (!xFunc && (!xFinal && xStep)) ||
      (nArg<-1 || nArg>SQLITE_MAX_FUNCTION_ARG) ||
      (255<(nName = sqlite3Strlen30( zFunctionName))) ){
    sqlite3Error(db, SQLITE_ERROR, "bad parameters");
    return SQLITE_ERROR;
  }
  
#ifndef SQLITE_OMIT_UTF16
  /* If SQLITE_UTF16 is specified as the encoding type, transform this
  ** to one of SQLITE_UTF16LE or SQLITE_UTF16BE using the
  ** SQLITE_UTF16NATIVE macro. SQLITE_UTF16 is not used internally.
  **








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**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.549 2009/05/07 13:43:49 drh Exp $
*/
#include "sqliteInt.h"

#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif
#ifdef SQLITE_ENABLE_RTREE
................................................................................
  assert( sqlite3_mutex_held(db->mutex) );
  if( zFunctionName==0 ||
      (xFunc && (xFinal || xStep)) || 
      (!xFunc && (xFinal && !xStep)) ||
      (!xFunc && (!xFinal && xStep)) ||
      (nArg<-1 || nArg>SQLITE_MAX_FUNCTION_ARG) ||
      (255<(nName = sqlite3Strlen30( zFunctionName))) ){

    return SQLITE_MISUSE;
  }
  
#ifndef SQLITE_OMIT_UTF16
  /* If SQLITE_UTF16 is specified as the encoding type, transform this
  ** to one of SQLITE_UTF16LE or SQLITE_UTF16BE using the
  ** SQLITE_UTF16NATIVE macro. SQLITE_UTF16 is not used internally.
  **

Changes to src/test_func.c. 

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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** implements new SQL functions used by the test scripts.
**
** $Id: test_func.c,v 1.14 2009/03/19 18:51:07 danielk1977 Exp $
*/
#include "sqlite3.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>

................................................................................
  sqlite3 *db;
  int rc;
  int mxArg;

  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep,tStep,tFinal);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep, tStep, 0);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep, 0, tFinal);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, 0, 0, tFinal);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, 0, tStep, 0);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", -2, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "tx", 128, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  rc = sqlite3_create_function(db, "funcxx"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789",
       1, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_ERROR ) goto abuse_err;
  if( sqlite3_errcode(db)!=SQLITE_ERROR ) goto abuse_err;
  if( strcmp(sqlite3_errmsg(db), "bad parameters")!=0 ) goto abuse_err;

  /* This last function registration should actually work.  Generate
  ** a no-op function (that always returns NULL) and which has the
  ** maximum-length function name and the maximum number of parameters.
  */
  sqlite3_limit(db, SQLITE_LIMIT_FUNCTION_ARG, 10000);
  mxArg = sqlite3_limit(db, SQLITE_LIMIT_FUNCTION_ARG, -1);








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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** implements new SQL functions used by the test scripts.
**
** $Id: test_func.c,v 1.15 2009/05/07 13:43:49 drh Exp $
*/
#include "sqlite3.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>

................................................................................
  sqlite3 *db;
  int rc;
  int mxArg;

  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;

  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep,tStep,tFinal);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep, tStep, 0);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, tStep, 0, tFinal);
  if( rc!=SQLITE_MISUSE) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, 0, 0, tFinal);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", 1, SQLITE_UTF8, 0, 0, tStep, 0);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", -2, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "tx", 128, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  rc = sqlite3_create_function(db, "funcxx"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789"
       "_123456789_123456789_123456789_123456789_123456789",
       1, SQLITE_UTF8, 0, tStep, 0, 0);
  if( rc!=SQLITE_MISUSE ) goto abuse_err;



  /* This last function registration should actually work.  Generate
  ** a no-op function (that always returns NULL) and which has the
  ** maximum-length function name and the maximum number of parameters.
  */
  sqlite3_limit(db, SQLITE_LIMIT_FUNCTION_ARG, 10000);
  mxArg = sqlite3_limit(db, SQLITE_LIMIT_FUNCTION_ARG, -1);

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