AryaWu/sqlite

1# 2008 May 62#3# The author disclaims copyright to this source code.  In place of4# a legal notice, here is a blessing:5#6#    May you do good and not evil.7#    May you find forgiveness for yourself and forgive others.8#    May you share freely, never taking more than you give.9#10#***********************************************************************11# This file implements regression tests for SQLite library.12#13# This file implements tests to make sure SQLite does not crash or14# segfault if it sees a corrupt database file.  It specifically focuses15# on corrupt SerialTypeLen values.16#17# $Id: corrupt6.test,v 1.2 2008/05/19 15:37:10 shane Exp $18 19set testdir [file dirname $argv0]20source $testdir/tester.tcl21 22# This module uses hard-coded offsets which do not work if the reserved_bytes23# value is nonzero.24if {[nonzero_reserved_bytes]} {finish_test; return;}25 26# These tests deal with corrupt database files27#28database_may_be_corrupt29 30# We must have the page_size pragma for these tests to work.31#32ifcapable !pager_pragmas {33  finish_test34  return35}36 37# Create a simple, small database.38#39do_test corrupt6-1.1 {40  execsql {41    PRAGMA auto_vacuum=OFF;42    PRAGMA page_size=1024;43    CREATE TABLE t1(x);44    INSERT INTO t1(x) VALUES('varint32-01234567890123456789012345678901234567890123456789');45    INSERT INTO t1(x) VALUES('varint32-01234567890123456789012345678901234567890123456789');46  }47  file size test.db48} [expr {1024*2}]49 50# Verify that the file format is as we expect.  The page size51# should be 1024 bytes.52#53do_test corrupt6-1.2 {54  hexio_get_int [hexio_read test.db 16 2]55} 1024   ;# The page size is 102456do_test corrupt6-1.3 {57  hexio_get_int [hexio_read test.db 20 1]58} 0      ;# Unused bytes per page is 059 60integrity_check corrupt6-1.461 62# Verify SerialTypeLen for first field of two records as we expect.63# SerialTypeLen = (len*2+12) = 60*2+12 = 13264do_test corrupt6-1.5.1 {65  hexio_read test.db 1923 266} 8103      ;# First text field size is 81 03 == 13167do_test corrupt6-1.5.2 {68  hexio_read test.db 1987 269} 8103      ;# Second text field size is 81 03 == 13170 71# Verify simple query results as expected.72do_test corrupt6-1.6 {73  db close74  sqlite3 db test.db75  catchsql {76    SELECT substr(x,1,8) FROM t177  }78} [list 0 {varint32 varint32} ]79integrity_check corrupt6-1.780 81# Adjust value of record 1 / field 1 SerialTypeLen and see if the82# corruption is detected.83# Increase SerialTypeLen by 2.84do_test corrupt6-1.8.1 {85  db close86  hexio_write test.db 1923 810587  sqlite3 db test.db88  catchsql {89    SELECT substr(x,1,8) FROM t190  }91} [list 1 {database disk image is malformed}]92 93# Adjust value of record 1 / field 1 SerialTypeLen and see if the94# corruption is detected.95# Decrease SerialTypeLen by 2.96do_test corrupt6-1.8.2 {97  db close98  hexio_write test.db 1923 810199  sqlite3 db test.db100  catchsql {101    SELECT substr(x,1,8) FROM t1102  }103} [list 1 {database disk image is malformed}]104 105# Put value of record 1 / field 1 SerialTypeLen back.106do_test corrupt6-1.8.3 {107  db close108  hexio_write test.db 1923 8103109  sqlite3 db test.db110  catchsql {111    SELECT substr(x,1,8) FROM t1112  }113} [list 0 {varint32 varint32} ]114integrity_check corrupt6-1.8.4115 116# Adjust value of record 2 / field 1 SerialTypeLen and see if the117# corruption is detected.118# Increase SerialTypeLen by 2.119do_test corrupt6-1.9.1 {120  db close121  hexio_write test.db 1987 8105122  sqlite3 db test.db123  catchsql {124    SELECT substr(x,1,8) FROM t1125  }126} [list 1 {database disk image is malformed}]127 128# Adjust value of record 2 / field 2 SerialTypeLen and see if the129# corruption is detected.130# Decrease SerialTypeLen by 2.131do_test corrupt6-1.9.2 {132  db close133  hexio_write test.db 1987 8101134  sqlite3 db test.db135  catchsql {136    SELECT substr(x,1,8) FROM t1137  }138} [list 1 {database disk image is malformed}]139 140# Put value of record 1 / field 2 SerialTypeLen back.141do_test corrupt6-1.9.3 {142  db close143  hexio_write test.db 1987 8103144  sqlite3 db test.db145  catchsql {146    SELECT substr(x,1,8) FROM t1147  }148} [list 0 {varint32 varint32} ]149integrity_check corrupt6-1.9.4150 151# Adjust value of record 1 / field 1 SerialTypeLen and see if the152# corruption is detected.153# Set SerialTypeLen to FF 7F (2 bytes)154do_test corrupt6-1.10.1 {155  db close156  hexio_write test.db 1923 FF7F157  sqlite3 db test.db158  catchsql {159    SELECT substr(x,1,8) FROM t1160  }161} [list 1 {database disk image is malformed}]162 163# Adjust value of record 1 / field 1 SerialTypeLen and see if the164# corruption is detected.165# Set SerialTypeLen to FF FF 7F (3 bytes)166do_test corrupt6-1.10.2 {167  db close168  hexio_write test.db 1923 FFFF7F169  sqlite3 db test.db170  catchsql {171    SELECT substr(x,1,8) FROM t1172  }173} [list 1 {database disk image is malformed}]174 175# Adjust value of record 1 / field 1 SerialTypeLen and see if the176# corruption is detected.177# Set SerialTypeLen to FF FF FF 7F (4 bytes)178do_test corrupt6-1.10.3 {179  db close180  hexio_write test.db 1923 FFFFFF7F181  sqlite3 db test.db182  catchsql {183    SELECT substr(x,1,8) FROM t1184  }185} [list 1 {database disk image is malformed}]186 187# Adjust value of record 1 / field 1 SerialTypeLen and see if the188# corruption is detected.189# Set SerialTypeLen to FF FF FF FF 7F (5 bytes)190do_test corrupt6-1.10.4 {191  db close192  hexio_write test.db 1923 FFFFFFFF7F193  sqlite3 db test.db194  catchsql {195    SELECT substr(x,1,8) FROM t1196  }197} [list 1 {database disk image is malformed}]198 199# Adjust value of record 1 / field 1 SerialTypeLen and see if the200# corruption is detected.201# Set SerialTypeLen to FF FF FF FF FF 7F (6 bytes, and overflows).202do_test corrupt6-1.10.5 {203  db close204  hexio_write test.db 1923 FFFFFFFFFF7F205  sqlite3 db test.db206  catchsql {207    SELECT substr(x,1,8) FROM t1208  }209} [list 1 {database disk image is malformed}]210 211# Adjust value of record 1 / field 1 SerialTypeLen and see if the212# corruption is detected.213# Set SerialTypeLen to FF FF FF FF FF FF 7F (7 bytes, and overflows).214do_test corrupt6-1.10.6 {215  db close216  hexio_write test.db 1923 FFFFFFFFFFFF7F217  sqlite3 db test.db218  catchsql {219    SELECT substr(x,1,8) FROM t1220  }221} [list 1 {database disk image is malformed}]222 223# Adjust value of record 1 / field 1 SerialTypeLen and see if the224# corruption is detected.225# Set SerialTypeLen to FF FF FF FF FF FF FF 7F (8 bytes, and overflows).226do_test corrupt6-1.10.7 {227  db close228  hexio_write test.db 1923 FFFFFFFFFFFFFF7F229  sqlite3 db test.db230  catchsql {231    SELECT substr(x,1,8) FROM t1232  }233} [list 1 {database disk image is malformed}]234 235# Adjust value of record 1 / field 1 SerialTypeLen and see if the236# corruption is detected.237# Set SerialTypeLen to FF FF FF FF FF FF FF FF 7F (9 bytes, and overflows).238do_test corrupt6-1.10.8 {239  db close240  hexio_write test.db 1923 FFFFFFFFFFFFFFFF7F241  sqlite3 db test.db242  catchsql {243    SELECT substr(x,1,8) FROM t1244  }245} [list 1 {database disk image is malformed}]246 247# Adjust value of record 1 / field 1 SerialTypeLen and see if the248# corruption is detected.249# Set SerialTypeLen to FFFF FF FF FF FF FF FF FF 7F (10 bytes, and overflows).250do_test corrupt6-1.10.9 {251  db close252  hexio_write test.db 1923 FFFFFFFFFFFFFFFFFF7F253  sqlite3 db test.db254  catchsql {255    SELECT substr(x,1,8) FROM t1256  }257} [list 1 {database disk image is malformed}]258 259finish_test260