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author | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
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committer | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
commit | 7bb481fda9ecb134804b49c2ce77ca28f7eea583 (patch) | |
tree | 31b520b9914d3e2453968abe375f2c102772c3dc /test/corrupt7.test |
Imported Upstream version 2.0.3
Diffstat (limited to 'test/corrupt7.test')
-rw-r--r-- | test/corrupt7.test | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/test/corrupt7.test b/test/corrupt7.test new file mode 100644 index 0000000..ad56656 --- /dev/null +++ b/test/corrupt7.test @@ -0,0 +1,130 @@ +# 2008 June 11 +# +# 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 corrupt cell offsets in a btree page. +# +# $Id: corrupt7.test,v 1.8 2009/08/10 10:18:08 danielk1977 Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# Do not use a codec for tests in this file, as the database file is +# manipulated directly using tcl scripts (using the [hexio_write] command). +# +do_not_use_codec + +# We must have the page_size pragma for these tests to work. +# +ifcapable !pager_pragmas { + finish_test + return +} + +# Create a simple, small database. +# +do_test corrupt7-1.1 { + execsql { + PRAGMA auto_vacuum=OFF; + 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; + } + file size test.db +} [expr {1024*2}] + +# Verify that the file format is as we expect. The page size +# should be 1024 bytes. +# +do_test corrupt7-1.2 { + hexio_get_int [hexio_read test.db 16 2] +} 1024 ;# The page size is 1024 +do_test corrupt7-1.3 { + hexio_get_int [hexio_read test.db 20 1] +} 0 ;# Unused bytes per page is 0 + +integrity_check corrupt7-1.4 + +# Deliberately corrupt some of the cell offsets in the btree page +# on page 2 of the database. +# +# The error message is different depending on whether or not the +# SQLITE_ENABLE_OVERSIZE_CELL_CHECK compile-time option is engaged. +# +ifcapable oversize_cell_check { + do_test corrupt7-2.1 { + db close + hexio_write test.db 1062 FF + sqlite3 db test.db + db eval {PRAGMA integrity_check(1)} + } {{*** in database main *** +Page 2: btreeInitPage() returns error code 11}} + do_test corrupt7-2.2 { + db close + hexio_write test.db 1062 04 + sqlite3 db test.db + db eval {PRAGMA integrity_check(1)} + } {{*** in database main *** +Page 2: btreeInitPage() returns error code 11}} +} else { + do_test corrupt7-2.1 { + db close + hexio_write test.db 1062 FF + sqlite3 db test.db + db eval {PRAGMA integrity_check(1)} + } {{*** in database main *** +Corruption detected in cell 15 on page 2}} + do_test corrupt7-2.2 { + db close + hexio_write test.db 1062 04 + sqlite3 db test.db + db eval {PRAGMA integrity_check(1)} + } {{*** in database main *** +On tree page 2 cell 15: Rowid 0 out of order (previous was 15)}} +} + +# The code path that was causing the buffer overrun that this test +# case was checking for was removed. +# +#do_test corrupt7-3.1 { +# execsql { +# DROP TABLE t1; +# CREATE TABLE t1(a, b); +# INSERT INTO t1 VALUES(1, 'one'); +# INSERT INTO t1 VALUES(100, 'one hundred'); +# INSERT INTO t1 VALUES(100000, 'one hundred thousand'); +# CREATE INDEX i1 ON t1(b); +# } +# db close +# +# # Locate the 3rd cell in the index. +# set cell_offset [hexio_get_int [hexio_read test.db [expr 1024*2 + 12] 2]] +# incr cell_offset [expr 1024*2] +# incr cell_offset 1 +# +# # This write corrupts the "header-size" field of the database record +# # stored in the index cell. At one point this was causing sqlite to +# # reference invalid memory. +# hexio_write test.db $cell_offset FFFF7F +# +# sqlite3 db test.db +# catchsql { +# SELECT b FROM t1 WHERE b > 'o' AND b < 'p'; +# } +#} {1 {database disk image is malformed}} + +finish_test |