/ Check-in [97d63b92]
Login
Home Timeline Branches Tags Tickets Wiki More...

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Fix a segfault in the authorizer when it is given a SELECT statement with no FROM clause. Ticket #896. (CVS 1954)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 97d63b9290ef88b3cd8012c71fdd5b3c74eebc8f
User & Date: drh 2004-09-09 13:55:50
Context
2004-09-09
14:01
Fix lemon so that inserted code always ends in a newline. Ticket #895. (CVS 1955) check-in: 13fba17e user: drh tags: trunk
13:55
Fix a segfault in the authorizer when it is given a SELECT statement with no FROM clause. Ticket #896. (CVS 1954) check-in: 97d63b92 user: drh tags: trunk
00:35
Trying to get some tests in printf.test to pass on 64-bit systems. (CVS 1952) check-in: b12fc46d user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/auth.c. 

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
106
107
108
109
110
111
112

113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129


130
131
132
133
134
135
136

**
*************************************************************************
** This file contains code used to implement the sqlite3_set_authorizer()
** API.  This facility is an optional feature of the library.  Embedded
** systems that do not need this facility may omit it by recompiling
** the library with -DSQLITE_OMIT_AUTHORIZATION=1
**
** $Id: auth.c,v 1.17 2004/09/06 17:24:12 drh Exp $
*/
#include "sqliteInt.h"

/*
** All of the code in this file may be omitted by defining a single
** macro.
*/
................................................................................
){
  sqlite3 *db = pParse->db;
  int rc;
  Table *pTab;          /* The table being read */
  const char *zCol;     /* Name of the column of the table */
  int iSrc;             /* Index in pTabList->a[] of table being read */
  const char *zDBase;   /* Name of database being accessed */


  if( db->xAuth==0 ) return;
  assert( pExpr->op==TK_COLUMN );
  for(iSrc=0; iSrc<pTabList->nSrc; iSrc++){
    if( pExpr->iTable==pTabList->a[iSrc].iCursor ) break;
  }
  if( iSrc>=0 && iSrc<pTabList->nSrc ){
    pTab = pTabList->a[iSrc].pTab;
  }else{
    /* This must be an attempt to read the NEW or OLD pseudo-tables
    ** of a trigger.
    */
    TriggerStack *pStack; /* The stack of current triggers */
    pStack = pParse->trigStack;
    assert( pStack!=0 );
    assert( pExpr->iTable==pStack->newIdx || pExpr->iTable==pStack->oldIdx );
    pTab = pStack->pTab;


  }
  if( pTab==0 ) return;
  if( pExpr->iColumn>=0 ){
    assert( pExpr->iColumn<pTab->nCol );
    zCol = pTab->aCol[pExpr->iColumn].zName;
  }else if( pTab->iPKey>=0 ){
    assert( pTab->iPKey<pTab->nCol );








|







 







>








|



<
<
<


>
>








10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125



126
127
128
129
130
131
132
133
134
135
136

**
*************************************************************************
** This file contains code used to implement the sqlite3_set_authorizer()
** API.  This facility is an optional feature of the library.  Embedded
** systems that do not need this facility may omit it by recompiling
** the library with -DSQLITE_OMIT_AUTHORIZATION=1
**
** $Id: auth.c,v 1.18 2004/09/09 13:55:50 drh Exp $
*/
#include "sqliteInt.h"

/*
** All of the code in this file may be omitted by defining a single
** macro.
*/
................................................................................
){
  sqlite3 *db = pParse->db;
  int rc;
  Table *pTab;          /* The table being read */
  const char *zCol;     /* Name of the column of the table */
  int iSrc;             /* Index in pTabList->a[] of table being read */
  const char *zDBase;   /* Name of database being accessed */
  TriggerStack *pStack; /* The stack of current triggers */

  if( db->xAuth==0 ) return;
  assert( pExpr->op==TK_COLUMN );
  for(iSrc=0; iSrc<pTabList->nSrc; iSrc++){
    if( pExpr->iTable==pTabList->a[iSrc].iCursor ) break;
  }
  if( iSrc>=0 && iSrc<pTabList->nSrc ){
    pTab = pTabList->a[iSrc].pTab;
  }else if( (pStack = pParse->trigStack)!=0 ){
    /* This must be an attempt to read the NEW or OLD pseudo-tables
    ** of a trigger.
    */



    assert( pExpr->iTable==pStack->newIdx || pExpr->iTable==pStack->oldIdx );
    pTab = pStack->pTab;
  }else{
    return;
  }
  if( pTab==0 ) return;
  if( pExpr->iColumn>=0 ){
    assert( pExpr->iColumn<pTab->nCol );
    zCol = pTab->aCol[pExpr->iColumn].zName;
  }else if( pTab->iPKey>=0 ){
    assert( pTab->iPKey<pTab->nCol );

Changes to test/auth.test. 

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
..
39
40
41
42
43
44
45






46
47
48
49
50
51
52

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the ATTACH and DETACH commands
# and related functionality.
#
# $Id: auth.test,v 1.17 2004/07/26 12:24:24 drh Exp $
#

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

# disable this test if the SQLITE_OMIT_AUTHORIZATION macro is
# defined during compilation.
................................................................................
} {1 {not authorized}}
do_test auth-1.1.2 {
  db errorcode
} {23}
do_test auth-1.1.3 {
  db authorizer
} {::auth}






do_test auth-1.2 {
  execsql {SELECT name FROM sqlite_master}
} {}
do_test auth-1.3.1 {
  proc auth {code arg1 arg2 arg3 arg4} {
    if {$code=="SQLITE_CREATE_TABLE"} {
      set ::authargs [list $arg1 $arg2 $arg3 $arg4]








|







 







>
>
>
>
>
>








8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
..
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the ATTACH and DETACH commands
# and related functionality.
#
# $Id: auth.test,v 1.18 2004/09/09 13:55:51 drh Exp $
#

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

# disable this test if the SQLITE_OMIT_AUTHORIZATION macro is
# defined during compilation.
................................................................................
} {1 {not authorized}}
do_test auth-1.1.2 {
  db errorcode
} {23}
do_test auth-1.1.3 {
  db authorizer
} {::auth}
do_test auth-1.1.4 {
  # Ticket #896.
  catchsql {
    SELECT x;
  }
} {1 {no such column: x}}
do_test auth-1.2 {
  execsql {SELECT name FROM sqlite_master}
} {}
do_test auth-1.3.1 {
  proc auth {code arg1 arg2 arg3 arg4} {
    if {$code=="SQLITE_CREATE_TABLE"} {
      set ::authargs [list $arg1 $arg2 $arg3 $arg4]

This page was generated in about 0.008s by Fossil 2.10 [89872d17d1] 2019-09-18 14:57:33