263 lines
7.0 KiB
Plaintext
263 lines
7.0 KiB
Plaintext
# 2014-01-20
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix corruptI
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if {[permutation]=="mmap"} {
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finish_test
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return
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}
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# This module uses hard-coded offsets which do not work if the reserved_bytes
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# value is nonzero.
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if {[nonzero_reserved_bytes]} {finish_test; return;}
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database_may_be_corrupt
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# Initialize the database.
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#
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do_execsql_test 1.1 {
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PRAGMA page_size=1024;
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(a);
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CREATE INDEX i1 ON t1(a);
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INSERT INTO t1 VALUES('abcdefghijklmnop');
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} {}
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db close
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do_test 1.2 {
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set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]]
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set off [expr 2*1024 + $offset + 1]
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hexio_write test.db $off 7f06
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sqlite3 db test.db
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catchsql { SELECT * FROM t1 WHERE a = 10 }
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} {0 {}}
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do_test 1.3 {
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db close
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set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]]
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set off [expr 2*1024 + $offset + 1]
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hexio_write test.db $off FFFF7f02
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sqlite3 db test.db
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catchsql { SELECT * FROM t1 WHERE a = 10 }
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} {1 {database disk image is malformed}}
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do_test 2.0 {
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execsql {
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CREATE TABLE r(x);
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INSERT INTO r VALUES('ABCDEFGHIJK');
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CREATE INDEX r1 ON r(x);
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}
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set pg [db one {SELECT rootpage FROM sqlite_master WHERE name = 'r1'}]
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} {5}
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do_test 2.1 {
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db close
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set offset [hexio_get_int [hexio_read test.db [expr (5-1)*1024 + 8] 2]]
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set off [expr (5-1)*1024 + $offset + 1]
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hexio_write test.db $off FFFF0004
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sqlite3 db test.db
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catchsql { SELECT * FROM r WHERE x >= 10.0 }
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} {1 {database disk image is malformed}}
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do_test 2.2 {
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catchsql { SELECT * FROM r WHERE x >= 10 }
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} {1 {database disk image is malformed}}
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if {[db one {SELECT sqlite_compileoption_used('ENABLE_OVERSIZE_CELL_CHECK')}]} {
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# The following tests only work if OVERSIZE_CELL_CHECK is disabled
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} else {
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reset_db
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do_execsql_test 3.1 {
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PRAGMA auto_vacuum=0;
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PRAGMA page_size = 512;
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
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WITH s(a, b) AS (
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SELECT 2, 'abcdefghij'
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UNION ALL
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SELECT a+2, b FROM s WHERe a < 40
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)
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INSERT INTO t1 SELECT * FROM s;
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} {}
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do_test 3.2 {
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hexio_write test.db [expr 512+3] 0054
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db close
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sqlite3 db test.db
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execsql { INSERT INTO t1 VALUES(5, 'klmnopqrst') }
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execsql { INSERT INTO t1 VALUES(7, 'klmnopqrst') }
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} {}
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db close
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sqlite3 db test.db
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do_catchsql_test 3.3 {
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INSERT INTO t1 VALUES(9, 'klmnopqrst');
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} {1 {database disk image is malformed}}
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} ;# end-if !defined(ENABLE_OVERSIZE_CELL_CHECK)
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#-------------------------------------------------------------------------
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# Test that an assert() failure discovered by AFL corrupt database file
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# testing has been fixed.
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#
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reset_db
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do_execsql_test 4.0 {
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PRAGMA page_size = 65536;
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PRAGMA autovacuum = 0;
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
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INSERT INTO t1 VALUES(-1, 'abcdefghij');
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INSERT INTO t1 VALUES(0, 'abcdefghij');
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}
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set root [db one {SELECT rootpage FROM sqlite_master}]
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set offset [expr ($root-1) * 65536]
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ifcapable oversize_cell_check {
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set res {1 {database disk image is malformed}}
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} else {
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set res {0 {}}
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}
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do_test 4.1 {
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db close
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hexio_write test.db [expr $offset + 8 + 2] 0000
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hexio_write test.db [expr $offset + 5] 0000
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sqlite3 db test.db
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catchsql { DELETE FROM t1 WHERE a=0 }
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} $res
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#-------------------------------------------------------------------------
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# Database properties:
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#
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# * Incremental vacuum mode.
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# * Database root table has a single leaf page.
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# * Free list consists of a single trunk page.
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#
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# The db is then corrupted by adding the root table leaf page as a free-list
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# leaf page (so that it is referenced twice).
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#
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# Then, a new table is created. The new root page is the current free-list
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# trunk. This means that the root table leaf page is made into the new
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# free list trunk, which corrupts its header. Then, when the new entry is
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# inserted into the root table, things would get chaotic.
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#
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reset_db
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do_test 5.0 {
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execsql {
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PRAGMA page_size = 512;
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PRAGMA auto_vacuum = 2;
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}
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for {set i 3} {1} {incr i} {
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execsql "CREATE TABLE t${i}(x)"
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if {[db one {PRAGMA page_count}]>$i} break
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}
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set nPage [db one {PRAGMA page_count}]
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execsql {
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CREATE TABLE t100(x);
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DROP TABLE t100;
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}
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} {}
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do_execsql_test 5.1 {
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PRAGMA page_count
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} [expr $nPage+1]
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do_test 5.2 {
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# The last page of the db is now the only leaf of the sqlite_master table.
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# Corrupt the db by adding it to the free-list as well (the second last
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# page of the db is the free-list trunk).
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db close
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hexio_write test.db [expr 512*($nPage-1)] [
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format "%.8X%.8X%.8X" 0 1 [expr $nPage+1]
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]
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} {12}
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do_test 5.3 {
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sqlite3 db test.db
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catchsql { CREATE TABLE tx(x); }
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} {1 {database disk image is malformed}}
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#-------------------------------------------------------------------------
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# Set the payload size of a cell to just less than 2^32 bytes (not
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# possible in an uncorrupted db). Then try to delete the cell. At one
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# point this led to an integer overflow that caused an assert() to fail.
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#
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reset_db
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do_execsql_test 6.0 {
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PRAGMA page_size = 512;
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(x);
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INSERT INTO t1 VALUES(zeroblob(300));
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INSERT INTO t1 VALUES(zeroblob(600));
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} {}
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do_test 6.1 {
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db close
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hexio_write test.db 616 8FFFFFFF7F02
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sqlite3 db test.db
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execsql { DELETE FROM t1 WHERE rowid=2 }
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} {}
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#-------------------------------------------------------------------------
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# See what happens if the sqlite_master entry associated with a PRIMARY
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# KEY or UNIQUE index is removed.
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#
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reset_db
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do_execsql_test 7.0 {
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(x PRIMARY KEY, y);
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INSERT INTO t1 VALUES('a', 'A');
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INSERT INTO t1 VALUES('b', 'A');
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INSERT INTO t1 VALUES('c', 'A');
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SELECT name FROM sqlite_master;
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} {t1 sqlite_autoindex_t1_1}
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do_execsql_test 7.1 {
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PRAGMA writable_schema = 1;
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DELETE FROM sqlite_master WHERE name = 'sqlite_autoindex_t1_1';
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}
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do_test 7.2 {
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db close
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sqlite3 db test.db
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catchsql { UPDATE t1 SET x='d' AND y='D' WHERE rowid = 2 }
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} {1 {database disk image is malformed}}
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#-------------------------------------------------------------------------
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# At one point an assert() would fail if attempt was made to free page 1.
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#
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reset_db
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do_execsql_test 8.0 {
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(x);
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INSERT INTO t1 VALUES(zeroblob(300));
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INSERT INTO t1 VALUES(zeroblob(300));
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INSERT INTO t1 VALUES(zeroblob(300));
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INSERT INTO t1 VALUES(zeroblob(300));
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} {}
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do_test 8.1 {
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db close
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hexio_write test.db [expr 1024 + 8] 00000001
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sqlite3 db test.db
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catchsql { DELETE FROM t1 }
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} {1 {database disk image is malformed}}
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do_test 8.2 {
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db close
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sqlite3 db test.db
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execsql { PRAGMA integrity_check }
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} {/.*in database main.*/}
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finish_test
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