# 2017-03-03
#
# 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.
#
#***********************************************************************
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix corruptK
if {[permutation]=="mmap"} {
finish_test
return
}
# This module uses hard-coded offsets which do not work if the reserved_bytes
# value is nonzero.
if {[nonzero_reserved_bytes]} {finish_test; return;}
database_may_be_corrupt
# Initialize the database.
#
do_execsql_test 1.1 {
PRAGMA page_size=1024;
PRAGMA auto_vacuum=0;
CREATE TABLE t1(x);
INSERT INTO t1 VALUES(randomblob(20));
INSERT INTO t1 VALUES(randomblob(100)); -- make this into a free slot
INSERT INTO t1 VALUES(randomblob(27)); -- this one will be corrupt
INSERT INTO t1 VALUES(randomblob(800));
DELETE FROM t1 WHERE rowid=2; -- free the 100 byte slot
PRAGMA page_count
} {2}
# Corrupt the database so that the blob stored immediately before
# the free slot (rowid==3) has an overlarge length field. So that
# we can use sqlite3_blob_write() to manipulate the size field of
# the free slot.
#
# Then use sqlite3_blob_write() to set the size of said free slot
# to 24 bytes (instead of the actual 100).
#
# Then use the new 24 byte slot. Leaving the in-memory version of
# the page with zero free slots and a large nFree value. Then try
# to allocate another slot to get to defragmentPage().
#
do_test 1.2 {
db close
hexio_write test.db [expr 1024 + 0x360] 21
hexio_write test.db [expr 1024 + 0x363] [format %x [expr 31*2 + 12]]
sqlite3 db test.db
set fd [db incrblob t1 x 3]
fconfigure $fd -translation binary -encoding binary
seek $fd 30
puts -nonewline $fd "\x18"
close $fd
} {}
do_execsql_test 1.3 {
INSERT INTO t1 VALUES(randomblob(20));
}
do_catchsql_test 1.4 {
INSERT INTO t1 VALUES(randomblob(90));
} {1 {database disk image is malformed}}
#-------------------------------------------------------------------------
reset_db
do_execsql_test 2.1 {
PRAGMA page_size=1024;
PRAGMA auto_vacuum=0;
CREATE TABLE t1(x);
INSERT INTO t1 VALUES(randomblob(20));
INSERT INTO t1 VALUES(randomblob(20)); -- free this one
INSERT INTO t1 VALUES(randomblob(20));
INSERT INTO t1 VALUES(randomblob(20)); -- and this one
INSERT INTO t1 VALUES(randomblob(20)); -- corrupt this one.
DELETE FROM t1 WHERE rowid IN(2, 4);
PRAGMA page_count
} {2}
do_test 2.2 {
db close
hexio_write test.db [expr 1024 + 0x388] 53
hexio_write test.db [expr 1024 + 0x38A] 03812C
sqlite3 db test.db
set fd [db incrblob t1 x 5]
fconfigure $fd -translation binary -encoding binary
seek $fd 22
puts -nonewline $fd "\x5d"
close $fd
} {}
do_catchsql_test 2.3 {
INSERT INTO t1 VALUES(randomblob(900));
} {1 {database disk image is malformed}}
#-------------------------------------------------------------------------
proc hex2blob {hex} {
# Split on newlines:
set bytes [list]
foreach l [split $hex "\n"] {
if {[string is space $l]} continue
set L [list]
foreach b [split $l] {
if {[string is xdigit $b] && [string length $b]==2} {
lappend L [expr "0x$b"]
}
}
if {[llength $L]!=16} {
error "Badly formed hex (1)"
}
set bytes [concat $bytes $L]
}
binary format c* $bytes
}
reset_db
db func hex2blob hex2blob
do_execsql_test 3.1 {
PRAGMA page_size=1024;
CREATE TABLE t1(a, b, c);
CREATE TABLE t2(a, b, c);
CREATE TABLE t3(a, b, c);
CREATE TABLE t4(a, b, c);
CREATE TABLE t5(a, b, c);
}
do_execsql_test 3.2 {
UPDATE sqlite_dbpage SET data = hex2blob('
000: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3.
010: 04 00 01 01 20 40 20 20 00 00 3e d9 00 00 00 06 .... @ ..>.....
020: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04 ................
030: 0f 00 00 00 00 00 00 00 00 00 00 01 00 00 83 00 ................
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 38 00 00 .............8..
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e d9 ..............>.
060: 00 2d e6 07 0d 00 00 00 01 03 a0 00 03 e0 00 00 .-..............
070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0d0: 00 00 00 00 00 c1 00 00 00 00 00 00 00 00 00 00 ................
0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
160: 00 83 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
180: 00 00 00 00 00 00 00 00 00 00 07 00 30 00 00 00 ............0...
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
1c0: 02 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 ................
1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
1f0: 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
220: 00 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
230: 0c 00 00 00 00 00 00 60 00 00 00 06 00 00 c3 00 .......`........
240: 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
270: 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 ................
280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
290: 04 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
2a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
2b0: 00 00 00 00 83 00 8c 00 00 00 00 00 00 00 00 00 ................
2c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
2d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
2e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
2f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
310: 00 78 00 00 00 00 00 00 00 00 00 00 00 00 70 00 .x............p.
320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
340: 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 ................
350: 00 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 .....h..........
360: 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 ................
370: 00 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00 ................
380: 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 ....p...........
390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
3a0: 5e 01 07 17 1b 1b 01 81 13 74 61 62 6c 65 73 65 ^........tablese
3b0: 6e 73 6f 32 73 73 65 6e 73 6f 72 73 02 43 52 45 nso2ssensors.CRE
3c0: 41 54 45 20 54 41 42 4c 45 20 73 65 6e 73 6f 72 ATE TABLE sensor
3d0: 73 20 0a 20 20 24 20 20 20 20 20 20 20 20 20 20 s . $
3e0: b8 6e 61 6d 65 21 74 65 78 74 2c 20 79 61 6c 20 .name!text, yal
3f0: 72 65 61 6c 2c 20 74 69 6d 65 20 74 65 78 74 29 real, time text)
') WHERE pgno=1
}
db close
sqlite3 db test.db
do_catchsql_test 3.3 {
PRAGMA integrity_check;
} {1 {database disk image is malformed}}
finish_test