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Overview
Comment:Fix a problem with the parameters to an OP_Affinity in one of the VM programs generated by sqlite3_index_writer() that was causing an OOB read.
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SHA1: 447b33b34a9836992f5a8d50cd8647a10435c144
User & Date: dan 2014-11-17 15:07:40.515
Context
2014-11-17
17:57
Changes so that sqlite3_ckpt_open() works with zipvfs databases. (check-in: acbed3380d user: dan tags: ota-update)
15:07
Fix a problem with the parameters to an OP_Affinity in one of the VM programs generated by sqlite3_index_writer() that was causing an OOB read. (check-in: 447b33b34a user: dan tags: ota-update)
2014-10-22
15:33
Add tests to check error handling in OTA. (check-in: ec7321ae48 user: dan tags: ota-update)
Changes
Unified Diff Ignore Whitespace Patch
Added ext/ota/ota7.test. 








































































































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# 2014 October 21
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file contains tests for the OTA module. Specifically, it tests the
# that affinities are correctly applied to values within the OTA database.
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
}
source $testdir/tester.tcl
set ::testprefix ota7

do_test 1.0 {
  execsql {
    CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT ROWID;
    INSERT INTO t1 VALUES(1, 'abc');
    INSERT INTO t1 VALUES(2, 'def');
  }

  forcedelete ota.db
  sqlite3 ota ota.db
  ota eval {
    CREATE TABLE data_t1(a, b, ota_control);
    INSERT INTO data_t1 VALUES('1', NULL, 1);
  }
  ota close
} {}

do_test 1.1 {
  sqlite3ota ota test.db ota.db
  while { [ota step]=="SQLITE_OK" } {}
  ota close
} {SQLITE_DONE}

sqlite3 db test.db
do_execsql_test 1.2 {
  SELECT * FROM t1
} {2 def}

finish_test
Changes to src/vdbeblob.c.
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      sqlite3VdbeJumpHere(v, addr);
    }

    /* Code the IdxInsert to write to the b-tree index. */
    sqlite3VdbeAddOp2(v, OP_IdxInsert, 0, regRec);
  }else{
    /* Code the IdxDelete to remove the entry from the b-tree index. */
    sqlite3VdbeAddOp4(v, OP_Affinity, 0, pIdx->nColumn, 0, zAffinity, 0);
    sqlite3VdbeAddOp3(v, OP_IdxDelete, 0, 1, pIdx->nColumn);
  }
  sqlite3FinishCoding(pParse);

index_writer_out:
  if( rc==SQLITE_OK && db->mallocFailed==0 ){
    *ppStmt = (sqlite3_stmt*)v;








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      sqlite3VdbeJumpHere(v, addr);
    }

    /* Code the IdxInsert to write to the b-tree index. */
    sqlite3VdbeAddOp2(v, OP_IdxInsert, 0, regRec);
  }else{
    /* Code the IdxDelete to remove the entry from the b-tree index. */
    sqlite3VdbeAddOp4(v, OP_Affinity, 1, pIdx->nColumn, 0, zAffinity, 0);
    sqlite3VdbeAddOp3(v, OP_IdxDelete, 0, 1, pIdx->nColumn);
  }
  sqlite3FinishCoding(pParse);

index_writer_out:
  if( rc==SQLITE_OK && db->mallocFailed==0 ){
    *ppStmt = (sqlite3_stmt*)v;
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