3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
10 #***********************************************************************
13 set testdir [file dirname $argv0]
14 source $testdir/tester.tcl
15 set testprefix corruptH
17 # Do not use a codec for tests in this file, as the database file is
18 # manipulated directly using tcl scripts (using the [hexio_write] command).
21 database_may_be_corrupt
23 # The corruption migrations tested by the code in this file are not detected
26 # The reason is that in mmap mode, the different queries may use different
27 # PgHdr objects for the same page (same data, but different PgHdr container
28 # objects). And so the corruption is not detected.
30 if {[permutation]=="mmap"} {
35 # Initialize the database.
38 PRAGMA page_size=1024;
40 CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
41 INSERT INTO t1 VALUES(1, 'one');
42 INSERT INTO t1 VALUES(2, 'two');
45 INSERT INTO t2 VALUES(randomblob(200));
46 INSERT INTO t2 SELECT randomblob(200) FROM t2;
47 INSERT INTO t2 SELECT randomblob(200) FROM t2;
48 INSERT INTO t2 SELECT randomblob(200) FROM t2;
49 INSERT INTO t2 SELECT randomblob(200) FROM t2;
50 INSERT INTO t2 SELECT randomblob(200) FROM t2;
51 INSERT INTO t2 SELECT randomblob(200) FROM t2;
54 # Corrupt the file so that the root page of t1 is also linked into t2 as
58 db eval { SELECT name, rootpage FROM sqlite_master } {
59 set r($name) $rootpage
62 hexio_write test.db [expr {($r(t2)-1)*1024 + 11}] [format %.2X $r(t1)]
68 db eval { PRAGMA secure_delete=1 }
70 db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
71 db eval { DELETE FROM t2 }
74 } {1 {database disk image is malformed}}
76 #-------------------------------------------------------------------------
79 # Initialize the database.
83 PRAGMA page_size=1024;
85 CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
86 INSERT INTO t1 VALUES(1, 'one');
87 INSERT INTO t1 VALUES(2, 'two');
91 CREATE TABLE t2(x PRIMARY KEY) WITHOUT ROWID;
92 INSERT INTO t2 VALUES(randomblob(100));
98 db eval { SELECT name, rootpage FROM sqlite_master } {
99 set r($name) $rootpage
102 set fl [hexio_get_int [hexio_read test.db 32 4]]
104 hexio_write test.db [expr {($fl-1) * 1024 + 0}] 00000000
105 hexio_write test.db [expr {($fl-1) * 1024 + 4}] 00000001
106 hexio_write test.db [expr {($fl-1) * 1024 + 8}] [format %.8X $r(t1)]
107 hexio_write test.db 36 00000002
113 # The trick here is that the root page of the tree scanned by the outer
114 # query is also currently on the free-list. So while the first seek on
115 # the table (for a==1) works, by the time the second is attempted The
116 # "INSERT INTO t2..." statements have recycled the root page of t1 and
117 # used it as an index leaf. Normally, BtreeMovetoUnpacked() detects
118 # that the PgHdr object associated with said root page does not match
119 # the cursor (as it is now marked with PgHdr.intKey==0) and returns
122 set res23 {1 {database disk image is malformed}}
126 db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
128 INSERT INTO t2 SELECT randomblob(100) FROM t2;
129 INSERT INTO t2 SELECT randomblob(100) FROM t2;
130 INSERT INTO t2 SELECT randomblob(100) FROM t2;
131 INSERT INTO t2 SELECT randomblob(100) FROM t2;
132 INSERT INTO t2 SELECT randomblob(100) FROM t2;
140 #-------------------------------------------------------------------------
143 # Initialize the database.
145 do_execsql_test 3.1 {
146 PRAGMA page_size=1024;
148 CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
149 INSERT INTO t1 VALUES(1, 'one');
150 INSERT INTO t1 VALUES(2, 'two');
152 CREATE TABLE t2(c INTEGER PRAGMA KEY, d);
153 INSERT INTO t2 VALUES(1, randomblob(1100));
157 db eval { SELECT name, rootpage FROM sqlite_master } {
158 set r($name) $rootpage
162 hexio_write test.db [expr {($r(t2)-1) * 1024 + 1020}] 00000002
169 db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
171 DELETE FROM t2 WHERE c=1;
175 } {1 {database disk image is malformed}}