mirror of
https://github.com/sqlite/sqlite.git
synced 2024-12-01 17:23:42 +01:00
1013148b1c
contains duplicate entries on the freelist. Ticket #3209. (CVS 5392) FossilOrigin-Name: 30825f74d60d8ace39bafd06814017ceefeb4fa4
131 lines
3.5 KiB
Plaintext
131 lines
3.5 KiB
Plaintext
# 2008 July 9
|
|
#
|
|
# 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 to make sure SQLite does not crash or
|
|
# segfault if it sees a corrupt database file. It specifically focuses
|
|
# on corruption in the form of duplicate entries no the freelist.
|
|
#
|
|
# $Id: corrupt9.test,v 1.1 2008/07/11 03:34:10 drh Exp $
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
# We must have the page_size pragma for these tests to work.
|
|
#
|
|
ifcapable !pager_pragmas {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
# Return the offset to the first (trunk) page of the freelist. Return
|
|
# zero of the freelist is empty.
|
|
#
|
|
proc freelist_trunk_offset {filename} {
|
|
if {[hexio_read $filename 36 4]==0} {return 0}
|
|
set pgno [hexio_get_int [hexio_read $filename 32 4]]
|
|
return [expr {($pgno-1)*[hexio_get_int [hexio_read $filename 16 2]]}]
|
|
}
|
|
|
|
# This procedure looks at the first trunk page of the freelist and
|
|
# corrupts that page by overwriting up to N entries with duplicates
|
|
# of the first entry.
|
|
#
|
|
proc corrupt_freelist {filename N} {
|
|
set offset [freelist_trunk_offset $filename]
|
|
if {$offset==0} {error "Freelist is empty"}
|
|
set cnt [hexio_get_int [hexio_read $filename [expr {$offset+4}] 4]]
|
|
set pgno [hexio_read $filename [expr {$offset+8}] 4]
|
|
for {set i 12} {$N>0 && $i<8+4*$cnt} {incr i 4; incr N -1} {
|
|
hexio_write $filename [expr {$offset+$i}] $pgno
|
|
}
|
|
}
|
|
|
|
# Create a database to work with. Make sure there are plenty of
|
|
# entries on the freelist.
|
|
#
|
|
do_test corrupt9-1.1 {
|
|
execsql {
|
|
PRAGMA page_size=1024;
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1(x) VALUES(1);
|
|
INSERT INTO t1(x) VALUES(2);
|
|
INSERT INTO t1(x) SELECT x+2 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+4 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+8 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+16 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+32 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+64 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+128 FROM t1;
|
|
INSERT INTO t1(x) SELECT x+256 FROM t1;
|
|
CREATE TABLE t2(a,b);
|
|
INSERT INTO t2 SELECT x, x*x FROM t1;
|
|
CREATE INDEX i1 ON t1(x);
|
|
CREATE INDEX i2 ON t2(b,a);
|
|
DROP INDEX i2;
|
|
}
|
|
expr {[file size test.db]>1024*24}
|
|
} {1}
|
|
integrity_check corrupt9-1.2
|
|
|
|
# Corrupt the freelist by adding duplicate entries to the freelist.
|
|
# Make sure the corruption is detected.
|
|
#
|
|
db close
|
|
file copy -force test.db test.db-template
|
|
|
|
corrupt_freelist test.db 1
|
|
sqlite3 db test.db
|
|
do_test corrupt9-2.1 {
|
|
set x [db eval {PRAGMA integrity_check}]
|
|
expr {$x!="ok"}
|
|
} {1}
|
|
do_test corrupt9-2.2 {
|
|
catchsql {
|
|
CREATE INDEX i2 ON t2(b,a);
|
|
REINDEX;
|
|
}
|
|
} {1 {database disk image is malformed}}
|
|
|
|
|
|
db close
|
|
file copy -force test.db-template test.db
|
|
corrupt_freelist test.db 2
|
|
sqlite3 db test.db
|
|
do_test corrupt9-3.1 {
|
|
set x [db eval {PRAGMA integrity_check}]
|
|
expr {$x!="ok"}
|
|
} {1}
|
|
do_test corrupt9-3.2 {
|
|
catchsql {
|
|
CREATE INDEX i2 ON t2(b,a);
|
|
REINDEX;
|
|
}
|
|
} {1 {database disk image is malformed}}
|
|
|
|
db close
|
|
file copy -force test.db-template test.db
|
|
corrupt_freelist test.db 3
|
|
sqlite3 db test.db
|
|
do_test corrupt9-4.1 {
|
|
set x [db eval {PRAGMA integrity_check}]
|
|
expr {$x!="ok"}
|
|
} {1}
|
|
do_test corrupt9-4.2 {
|
|
catchsql {
|
|
CREATE INDEX i2 ON t2(b,a);
|
|
REINDEX;
|
|
}
|
|
} {1 {database disk image is malformed}}
|
|
|
|
|
|
finish_test
|