SQLite

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**
** $Id: vdbe.c,v 1.458 2005/03/17 03:15:40 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*

  unsigned char *zNewRecord;
  unsigned char *zCsr;
  Mem *pRec;
  Mem *pRowid = 0;
  int nData = 0;         /* Number of bytes of data space */
  int nHdr = 0;          /* Number of bytes of header space */
  int nByte = 0;         /* Space required for this record */
  int nVarint;           /* Number of bytes in a varint */
  u32 serial_type;       /* Type field */
  int containsNull = 0;  /* True if any of the data fields are NULL */
  char zTemp[NBFS];      /* Space to hold small records */
  Mem *pData0;

  int leaveOnStack;      /* If true, leave the entries on the stack */
  int nField;            /* Number of fields in the record */

    Integerify(pRowid);
    serial_type = sqlite3VdbeSerialType(pRowid);
    nData += sqlite3VdbeSerialTypeLen(serial_type);
    nHdr += sqlite3VarintLen(serial_type);
  }

  /* Add the initial header varint and total the size */
  nHdr += nVarint = sqlite3VarintLen(nHdr);
  if( nVarint<sqlite3VarintLen(nHdr) ){
    nHdr++;
  }
  nByte = nHdr+nData;

  /* Allocate space for the new record. */
  if( nByte>sizeof(zTemp) ){
    zNewRecord = sqliteMallocRaw(nByte);
    if( !zNewRecord ){
      goto no_mem;

  }
  for(pRec=pData0; pRec<=pTos; pRec++){
    zCsr += sqlite3VdbeSerialPut(zCsr, pRec);  /* serial data */
  }
  if( addRowid ){
    zCsr += sqlite3VdbeSerialPut(zCsr, pRowid);
  }
  assert( zCsr<=(zNewRecord+nByte) );

  /* Pop entries off the stack if required. Push the new record on. */
  if( !leaveOnStack ){
    popStack(&pTos, nField+addRowid);
  }
  pTos++;
  pTos->n = nByte;

# 2005 Mar 16
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc5.test,v 1.1 2005/03/17 03:15:40 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Build records using the MakeRecord opcode such that the size of the 
# header is at the transition point in the size of a varint.
#
# This test causes an assertion failure or a buffer overrun in version
# 3.1.5 and earlier.
#
for {set i 120} {$i<140} {incr i} {
  do_test misc5-1.$i {
    catchsql {DROP TABLE t1}
    set sql1 {CREATE TABLE t1}
    set sql2 {INSERT INTO t1 VALUES}
    set sep (
    for {set j 0} {$j<$i} {incr j} {
      append sql1 ${sep}a$j
      append sql2 ${sep}$j
      set sep ,
    }
    append sql1 {);}
    append sql2 {);}
    execsql $sql1$sql2
  } {}
}

finish_test