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Fixed crash in integrity_check with corrupt content offset size in page header. (CVS 5881)

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FossilOrigin-Name: 0659a666ff0a9fc81ee4df3c35e535164c79e588
This commit is contained in:
shane
2008-11-11 17:36:30 +00:00
parent 86a7a69cbe
commit 5780ebdf79
4 changed files with 55 additions and 25 deletions
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test/corruptC.test
+37 -13
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@@ -15,13 +15,16 @@
# data base file, then tests that single byte corruptions in
# increasingly larger quantities are handled gracefully.
#
# $Id: corruptC.test,v 1.1 2008/10/31 13:57:40 shane Exp $
# $Id: corruptC.test,v 1.2 2008/11/11 17:36:30 shane Exp $
catch {file delete -force test.db test.db-journal test.bu}
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Set a uniform random seed
expr srand(0)
# Construct a compact, dense database for testing.
#
do_test corruptC-1.1 {
@@ -68,7 +71,32 @@ proc copy_file {from to} {
copy_file test.db test.bu
set fsize [file size test.db]
for {set tn 1} {$tn<=1024} {incr tn 1} {
#
# first test some specific corruption tests found from earlier runs
#
# test that a corrupt content offset size is handled (seed 5577)
do_test corruptC-2.1 {
db close
copy_file test.bu test.db
# insert corrupt byte(s)
hexio_write test.db 2053 04
sqlite3 db test.db
catchsql {PRAGMA integrity_check}
} {0 {{*** in database main ***
Corruption detected in header on page 3
Multiple uses for byte 604 of page 3}}}
#
# now test for a series of quasi-random seeds
#
for {set tn 0} {$tn<=1024} {incr tn 1} {
# Set a quasi-random random seed
expr srand($tn)
# setup for test
db close
@@ -82,32 +110,28 @@ for {set tn 1} {$tn<=1024} {incr tn 1} {
for {set i 1} {$i<=1024 && !$last} {incr i 1} {
# insert random byte at random location
set fd [open test.db r+]
fconfigure $fd -translation binary
seek $fd [random $fsize]
puts -nonewline $fd [format "%c" [expr [random 255]]]
close $fd
hexio_write test.db [random $fsize] [format %02x [random 255]]
# do a few random operations to make sure that if
# they error, they error gracefully instead of crashing.
do_test corruptC-2.$tn.$i.1 {
do_test corruptC-3.$tn.$i.1 {
sqlite3 db test.db
catchsql {SELECT count(*) FROM sqlite_master}
set x {}
} {}
do_test corruptC-2.$tn.$i.2 {
do_test corruptC-3.$tn.$i.2 {
catchsql {SELECT count(*) FROM t1}
set x {}
} {}
do_test corruptC-2.$tn.$i.3 {
do_test corruptC-3.$tn.$i.3 {
catchsql {SELECT count(*) FROM t1 WHERE x>13}
set x {}
} {}
do_test corruptC-2.$tn.$i.4 {
do_test corruptC-3.$tn.$i.4 {
catchsql {SELECT count(*) FROM t2}
set x {}
} {}
do_test corruptC-2.$tn.$i.5 {
do_test corruptC-3.$tn.$i.5 {
catchsql {SELECT count(*) FROM t2 WHERE x<13}
set x {}
} {}
@@ -130,7 +154,7 @@ for {set tn 1} {$tn<=1024} {incr tn 1} {
}
# Check that no page references were leaked.
do_test corruptC-2.$tn.$i.6 {
do_test corruptC-3.$tn.$i.6 {
set bt [btree_from_db db]
db_enter db
array set stats [btree_pager_stats $bt]