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| 1 # 2004 August 30 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # 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 or | |
| 14 # segfault if it sees a corrupt database file. | |
| 15 # | |
| 16 # $Id: corrupt2.test,v 1.20 2009/04/06 17:50:03 danielk1977 Exp $ | |
| 17 | |
| 18 set testdir [file dirname $argv0] | |
| 19 source $testdir/tester.tcl | |
| 20 set testprefix corrupt2 | |
| 21 | |
| 22 # Do not use a codec for tests in this file, as the database file is | |
| 23 # manipulated directly using tcl scripts (using the [hexio_write] command). | |
| 24 # | |
| 25 do_not_use_codec | |
| 26 | |
| 27 # These tests deal with corrupt database files | |
| 28 # | |
| 29 database_may_be_corrupt | |
| 30 | |
| 31 set presql "" | |
| 32 catch { set presql "$::G(perm:presql);" } | |
| 33 unset -nocomplain ::G(perm:presql) | |
| 34 | |
| 35 # The following tests - corrupt2-1.* - create some databases corrupted in | |
| 36 # specific ways and ensure that SQLite detects them as corrupt. | |
| 37 # | |
| 38 do_test corrupt2-1.1 { | |
| 39 execsql { | |
| 40 PRAGMA auto_vacuum=0; | |
| 41 PRAGMA page_size=1024; | |
| 42 CREATE TABLE abc(a, b, c); | |
| 43 } | |
| 44 } {} | |
| 45 | |
| 46 do_test corrupt2-1.2 { | |
| 47 | |
| 48 # Corrupt the 16 byte magic string at the start of the file | |
| 49 forcedelete corrupt.db | |
| 50 forcedelete corrupt.db-journal | |
| 51 forcecopy test.db corrupt.db | |
| 52 set f [open corrupt.db RDWR] | |
| 53 seek $f 8 start | |
| 54 puts $f blah | |
| 55 close $f | |
| 56 | |
| 57 sqlite3 db2 corrupt.db | |
| 58 catchsql " | |
| 59 $::presql | |
| 60 SELECT * FROM sqlite_master; | |
| 61 " db2 | |
| 62 } {1 {file is encrypted or is not a database}} | |
| 63 | |
| 64 do_test corrupt2-1.3 { | |
| 65 db2 close | |
| 66 | |
| 67 # Corrupt the page-size (bytes 16 and 17 of page 1). | |
| 68 forcedelete corrupt.db | |
| 69 forcedelete corrupt.db-journal | |
| 70 forcecopy test.db corrupt.db | |
| 71 set f [open corrupt.db RDWR] | |
| 72 fconfigure $f -encoding binary | |
| 73 seek $f 16 start | |
| 74 puts -nonewline $f "\x00\xFF" | |
| 75 close $f | |
| 76 | |
| 77 sqlite3 db2 corrupt.db | |
| 78 catchsql " | |
| 79 $::presql | |
| 80 SELECT * FROM sqlite_master; | |
| 81 " db2 | |
| 82 } {1 {file is encrypted or is not a database}} | |
| 83 | |
| 84 do_test corrupt2-1.4 { | |
| 85 db2 close | |
| 86 | |
| 87 # Corrupt the free-block list on page 1. | |
| 88 forcedelete corrupt.db | |
| 89 forcedelete corrupt.db-journal | |
| 90 forcecopy test.db corrupt.db | |
| 91 set f [open corrupt.db RDWR] | |
| 92 fconfigure $f -encoding binary | |
| 93 seek $f 101 start | |
| 94 puts -nonewline $f "\xFF\xFF" | |
| 95 close $f | |
| 96 | |
| 97 sqlite3 db2 corrupt.db | |
| 98 catchsql " | |
| 99 $::presql | |
| 100 SELECT * FROM sqlite_master; | |
| 101 " db2 | |
| 102 } {1 {database disk image is malformed}} | |
| 103 | |
| 104 do_test corrupt2-1.5 { | |
| 105 db2 close | |
| 106 | |
| 107 # Corrupt the free-block list on page 1. | |
| 108 forcedelete corrupt.db | |
| 109 forcedelete corrupt.db-journal | |
| 110 forcecopy test.db corrupt.db | |
| 111 set f [open corrupt.db RDWR] | |
| 112 fconfigure $f -encoding binary | |
| 113 seek $f 101 start | |
| 114 puts -nonewline $f "\x00\xC8" | |
| 115 seek $f 200 start | |
| 116 puts -nonewline $f "\x00\x00" | |
| 117 puts -nonewline $f "\x10\x00" | |
| 118 close $f | |
| 119 | |
| 120 sqlite3 db2 corrupt.db | |
| 121 catchsql " | |
| 122 $::presql | |
| 123 SELECT * FROM sqlite_master; | |
| 124 " db2 | |
| 125 } {1 {database disk image is malformed}} | |
| 126 db2 close | |
| 127 | |
| 128 # Corrupt a database by having 2 indices of the same name: | |
| 129 do_test corrupt2-2.1 { | |
| 130 | |
| 131 forcedelete corrupt.db | |
| 132 forcedelete corrupt.db-journal | |
| 133 forcecopy test.db corrupt.db | |
| 134 | |
| 135 sqlite3 db2 corrupt.db | |
| 136 execsql " | |
| 137 $::presql | |
| 138 CREATE INDEX a1 ON abc(a); | |
| 139 CREATE INDEX a2 ON abc(b); | |
| 140 PRAGMA writable_schema = 1; | |
| 141 UPDATE sqlite_master | |
| 142 SET name = 'a3', sql = 'CREATE INDEX a3' || substr(sql, 16, 10000) | |
| 143 WHERE type = 'index'; | |
| 144 PRAGMA writable_schema = 0; | |
| 145 " db2 | |
| 146 | |
| 147 db2 close | |
| 148 sqlite3 db2 corrupt.db | |
| 149 catchsql " | |
| 150 $::presql | |
| 151 SELECT * FROM sqlite_master; | |
| 152 " db2 | |
| 153 } {1 {malformed database schema (a3) - index a3 already exists}} | |
| 154 | |
| 155 db2 close | |
| 156 | |
| 157 do_test corrupt2-3.1 { | |
| 158 forcedelete corrupt.db | |
| 159 forcedelete corrupt.db-journal | |
| 160 sqlite3 db2 corrupt.db | |
| 161 | |
| 162 execsql " | |
| 163 $::presql | |
| 164 PRAGMA auto_vacuum = 1; | |
| 165 PRAGMA page_size = 1024; | |
| 166 CREATE TABLE t1(a, b, c); | |
| 167 CREATE TABLE t2(a, b, c); | |
| 168 INSERT INTO t2 VALUES(randomblob(100), randomblob(100), randomblob(100)); | |
| 169 INSERT INTO t2 SELECT * FROM t2; | |
| 170 INSERT INTO t2 SELECT * FROM t2; | |
| 171 INSERT INTO t2 SELECT * FROM t2; | |
| 172 INSERT INTO t2 SELECT * FROM t2; | |
| 173 " db2 | |
| 174 | |
| 175 db2 close | |
| 176 | |
| 177 # On the root page of table t2 (page 4), set one of the child page-numbers | |
| 178 # to 0. This corruption will be detected when SQLite attempts to update | |
| 179 # the pointer-map after moving the content of page 4 to page 3 as part | |
| 180 # of the DROP TABLE operation below. | |
| 181 # | |
| 182 set fd [open corrupt.db r+] | |
| 183 fconfigure $fd -encoding binary -translation binary | |
| 184 seek $fd [expr 1024*3 + 12] | |
| 185 set zCelloffset [read $fd 2] | |
| 186 binary scan $zCelloffset S iCelloffset | |
| 187 seek $fd [expr 1024*3 + $iCelloffset] | |
| 188 puts -nonewline $fd "\00\00\00\00" | |
| 189 close $fd | |
| 190 | |
| 191 sqlite3 db2 corrupt.db | |
| 192 catchsql " | |
| 193 $::presql | |
| 194 DROP TABLE t1; | |
| 195 " db2 | |
| 196 } {1 {database disk image is malformed}} | |
| 197 | |
| 198 do_test corrupt2-4.1 { | |
| 199 catchsql { | |
| 200 SELECT * FROM t2; | |
| 201 } db2 | |
| 202 } {1 {database disk image is malformed}} | |
| 203 | |
| 204 db2 close | |
| 205 | |
| 206 unset -nocomplain result | |
| 207 do_test corrupt2-5.1 { | |
| 208 forcedelete corrupt.db | |
| 209 forcedelete corrupt.db-journal | |
| 210 sqlite3 db2 corrupt.db | |
| 211 | |
| 212 execsql " | |
| 213 $::presql | |
| 214 PRAGMA auto_vacuum = 0; | |
| 215 PRAGMA page_size = 1024; | |
| 216 CREATE TABLE t1(a, b, c); | |
| 217 CREATE TABLE t2(a, b, c); | |
| 218 INSERT INTO t2 VALUES(randomblob(100), randomblob(100), randomblob(100)); | |
| 219 INSERT INTO t2 SELECT * FROM t2; | |
| 220 INSERT INTO t2 SELECT * FROM t2; | |
| 221 INSERT INTO t2 SELECT * FROM t2; | |
| 222 INSERT INTO t2 SELECT * FROM t2; | |
| 223 INSERT INTO t1 SELECT * FROM t2; | |
| 224 " db2 | |
| 225 | |
| 226 db2 close | |
| 227 | |
| 228 # This block links a page from table t2 into the t1 table structure. | |
| 229 # | |
| 230 set fd [open corrupt.db r+] | |
| 231 fconfigure $fd -encoding binary -translation binary | |
| 232 seek $fd [expr 1024 + 12] | |
| 233 set zCelloffset [read $fd 2] | |
| 234 binary scan $zCelloffset S iCelloffset | |
| 235 seek $fd [expr 1024 + $iCelloffset] | |
| 236 set zChildPage [read $fd 4] | |
| 237 seek $fd [expr 2*1024 + 12] | |
| 238 set zCelloffset [read $fd 2] | |
| 239 binary scan $zCelloffset S iCelloffset | |
| 240 seek $fd [expr 2*1024 + $iCelloffset] | |
| 241 puts -nonewline $fd $zChildPage | |
| 242 close $fd | |
| 243 | |
| 244 sqlite3 db2 corrupt.db | |
| 245 db2 eval $::presql | |
| 246 db2 eval {SELECT rowid FROM t1} { | |
| 247 set result [db2 eval {pragma integrity_check}] | |
| 248 break | |
| 249 } | |
| 250 set result | |
| 251 } {{*** in database main *** | |
| 252 On tree page 2 cell 0: 2nd reference to page 10 | |
| 253 Page 4 is never used}} | |
| 254 | |
| 255 db2 close | |
| 256 | |
| 257 proc corruption_test {args} { | |
| 258 set A(-corrupt) {} | |
| 259 set A(-sqlprep) {} | |
| 260 set A(-tclprep) {} | |
| 261 array set A $args | |
| 262 | |
| 263 catch {db close} | |
| 264 forcedelete corrupt.db | |
| 265 forcedelete corrupt.db-journal | |
| 266 | |
| 267 sqlite3 db corrupt.db | |
| 268 db eval $::presql | |
| 269 eval $A(-tclprep) | |
| 270 db eval $A(-sqlprep) | |
| 271 db close | |
| 272 | |
| 273 eval $A(-corrupt) | |
| 274 | |
| 275 sqlite3 db corrupt.db | |
| 276 eval $A(-test) | |
| 277 } | |
| 278 | |
| 279 ifcapable autovacuum { | |
| 280 # The tests within this block - corrupt2-6.* - aim to test corruption | |
| 281 # detection within an incremental-vacuum. When an incremental-vacuum | |
| 282 # step is executed, the last non-free page of the database file is | |
| 283 # moved into a free space in the body of the file. After doing so, | |
| 284 # the page reference in the parent page must be updated to refer | |
| 285 # to the new location. These tests test the outcome of corrupting | |
| 286 # that page reference before performing the incremental vacuum. | |
| 287 # | |
| 288 | |
| 289 # The last page in the database page is the second page | |
| 290 # in an overflow chain. | |
| 291 # | |
| 292 corruption_test -sqlprep { | |
| 293 PRAGMA auto_vacuum = incremental; | |
| 294 PRAGMA page_size = 1024; | |
| 295 CREATE TABLE t1(a, b); | |
| 296 INSERT INTO t1 VALUES(1, randomblob(2500)); | |
| 297 INSERT INTO t1 VALUES(2, randomblob(2500)); | |
| 298 DELETE FROM t1 WHERE a = 1; | |
| 299 } -corrupt { | |
| 300 hexio_write corrupt.db [expr 1024*5] 00000008 | |
| 301 } -test { | |
| 302 do_test corrupt2-6.1 { | |
| 303 catchsql " $::presql pragma incremental_vacuum = 1 " | |
| 304 } {1 {database disk image is malformed}} | |
| 305 } | |
| 306 | |
| 307 # The last page in the database page is a non-root b-tree page. | |
| 308 # | |
| 309 corruption_test -sqlprep { | |
| 310 PRAGMA auto_vacuum = incremental; | |
| 311 PRAGMA page_size = 1024; | |
| 312 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 313 INSERT INTO t1 VALUES(1, randomblob(2500)); | |
| 314 INSERT INTO t1 VALUES(2, randomblob(50)); | |
| 315 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 316 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 317 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 318 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 319 DELETE FROM t1 WHERE a = 1; | |
| 320 } -corrupt { | |
| 321 hexio_write corrupt.db [expr 1024*2 + 8] 00000009 | |
| 322 } -test { | |
| 323 do_test corrupt2-6.2 { | |
| 324 catchsql " $::presql pragma incremental_vacuum = 1 " | |
| 325 } {1 {database disk image is malformed}} | |
| 326 } | |
| 327 | |
| 328 # Set up a pointer-map entry so that the last page of the database | |
| 329 # file appears to be a b-tree root page. This should be detected | |
| 330 # as corruption. | |
| 331 # | |
| 332 corruption_test -sqlprep { | |
| 333 PRAGMA auto_vacuum = incremental; | |
| 334 PRAGMA page_size = 1024; | |
| 335 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 336 INSERT INTO t1 VALUES(1, randomblob(2500)); | |
| 337 INSERT INTO t1 VALUES(2, randomblob(2500)); | |
| 338 INSERT INTO t1 VALUES(3, randomblob(2500)); | |
| 339 DELETE FROM t1 WHERE a = 1; | |
| 340 } -corrupt { | |
| 341 set nPage [expr [file size corrupt.db] / 1024] | |
| 342 hexio_write corrupt.db [expr 1024 + ($nPage-3)*5] 010000000 | |
| 343 } -test { | |
| 344 do_test corrupt2-6.3 { | |
| 345 catchsql " $::presql pragma incremental_vacuum = 1 " | |
| 346 } {1 {database disk image is malformed}} | |
| 347 } | |
| 348 | |
| 349 corruption_test -sqlprep { | |
| 350 PRAGMA auto_vacuum = 1; | |
| 351 PRAGMA page_size = 1024; | |
| 352 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 353 INSERT INTO t1 VALUES(1, randomblob(2500)); | |
| 354 DELETE FROM t1 WHERE a = 1; | |
| 355 } -corrupt { | |
| 356 set nAppend [expr 1024*207 - [file size corrupt.db]] | |
| 357 set fd [open corrupt.db r+] | |
| 358 seek $fd 0 end | |
| 359 puts -nonewline $fd [string repeat x $nAppend] | |
| 360 close $fd | |
| 361 hexio_write corrupt.db 28 00000000 | |
| 362 } -test { | |
| 363 do_test corrupt2-6.4 { | |
| 364 catchsql " | |
| 365 $::presql | |
| 366 BEGIN EXCLUSIVE; | |
| 367 COMMIT; | |
| 368 " | |
| 369 } {1 {database disk image is malformed}} | |
| 370 } | |
| 371 } | |
| 372 | |
| 373 | |
| 374 set sqlprep { | |
| 375 PRAGMA auto_vacuum = 0; | |
| 376 PRAGMA page_size = 1024; | |
| 377 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 378 CREATE INDEX i1 ON t1(b); | |
| 379 INSERT INTO t1 VALUES(1, randomblob(50)); | |
| 380 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 381 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 382 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 383 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 384 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 385 INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1; | |
| 386 } | |
| 387 | |
| 388 corruption_test -sqlprep $sqlprep -corrupt { | |
| 389 # Set the page-flags of one of the leaf pages of the index B-Tree to | |
| 390 # 0x0D (interpreted by SQLite as "leaf page of a table B-Tree"). | |
| 391 # | |
| 392 set fd [open corrupt.db r+] | |
| 393 fconfigure $fd -translation binary -encoding binary | |
| 394 seek $fd [expr 1024*2 + 8] | |
| 395 set zRightChild [read $fd 4] | |
| 396 binary scan $zRightChild I iRightChild | |
| 397 seek $fd [expr 1024*($iRightChild-1)] | |
| 398 puts -nonewline $fd "\x0D" | |
| 399 close $fd | |
| 400 } -test { | |
| 401 do_test corrupt2-7.1 { | |
| 402 catchsql " $::presql SELECT b FROM t1 ORDER BY b ASC " | |
| 403 } {1 {database disk image is malformed}} | |
| 404 } | |
| 405 | |
| 406 corruption_test -sqlprep $sqlprep -corrupt { | |
| 407 # Mess up the page-header of one of the leaf pages of the index B-Tree. | |
| 408 # The corruption is detected as part of an OP_Prev opcode. | |
| 409 # | |
| 410 set fd [open corrupt.db r+] | |
| 411 fconfigure $fd -translation binary -encoding binary | |
| 412 seek $fd [expr 1024*2 + 12] | |
| 413 set zCellOffset [read $fd 2] | |
| 414 binary scan $zCellOffset S iCellOffset | |
| 415 seek $fd [expr 1024*2 + $iCellOffset] | |
| 416 set zChild [read $fd 4] | |
| 417 binary scan $zChild I iChild | |
| 418 seek $fd [expr 1024*($iChild-1)+3] | |
| 419 puts -nonewline $fd "\xFFFF" | |
| 420 close $fd | |
| 421 } -test { | |
| 422 do_test corrupt2-7.1 { | |
| 423 catchsql " $::presql SELECT b FROM t1 ORDER BY b DESC " | |
| 424 } {1 {database disk image is malformed}} | |
| 425 } | |
| 426 | |
| 427 corruption_test -sqlprep $sqlprep -corrupt { | |
| 428 # Set the page-flags of one of the leaf pages of the table B-Tree to | |
| 429 # 0x0A (interpreted by SQLite as "leaf page of an index B-Tree"). | |
| 430 # | |
| 431 set fd [open corrupt.db r+] | |
| 432 fconfigure $fd -translation binary -encoding binary | |
| 433 seek $fd [expr 1024*1 + 8] | |
| 434 set zRightChild [read $fd 4] | |
| 435 binary scan $zRightChild I iRightChild | |
| 436 seek $fd [expr 1024*($iRightChild-1)] | |
| 437 puts -nonewline $fd "\x0A" | |
| 438 close $fd | |
| 439 } -test { | |
| 440 do_test corrupt2-8.1 { | |
| 441 catchsql " $::presql SELECT * FROM t1 WHERE rowid=1000 " | |
| 442 } {1 {database disk image is malformed}} | |
| 443 } | |
| 444 | |
| 445 corruption_test -sqlprep { | |
| 446 CREATE TABLE t1(a, b, c); CREATE TABLE t8(a, b, c); CREATE TABLE tE(a, b, c); | |
| 447 CREATE TABLE t2(a, b, c); CREATE TABLE t9(a, b, c); CREATE TABLE tF(a, b, c); | |
| 448 CREATE TABLE t3(a, b, c); CREATE TABLE tA(a, b, c); CREATE TABLE tG(a, b, c); | |
| 449 CREATE TABLE t4(a, b, c); CREATE TABLE tB(a, b, c); CREATE TABLE tH(a, b, c); | |
| 450 CREATE TABLE t5(a, b, c); CREATE TABLE tC(a, b, c); CREATE TABLE tI(a, b, c); | |
| 451 CREATE TABLE t6(a, b, c); CREATE TABLE tD(a, b, c); CREATE TABLE tJ(a, b, c); | |
| 452 CREATE TABLE x1(a, b, c); CREATE TABLE x8(a, b, c); CREATE TABLE xE(a, b, c); | |
| 453 CREATE TABLE x2(a, b, c); CREATE TABLE x9(a, b, c); CREATE TABLE xF(a, b, c); | |
| 454 CREATE TABLE x3(a, b, c); CREATE TABLE xA(a, b, c); CREATE TABLE xG(a, b, c); | |
| 455 CREATE TABLE x4(a, b, c); CREATE TABLE xB(a, b, c); CREATE TABLE xH(a, b, c); | |
| 456 CREATE TABLE x5(a, b, c); CREATE TABLE xC(a, b, c); CREATE TABLE xI(a, b, c); | |
| 457 CREATE TABLE x6(a, b, c); CREATE TABLE xD(a, b, c); CREATE TABLE xJ(a, b, c); | |
| 458 } -corrupt { | |
| 459 set fd [open corrupt.db r+] | |
| 460 fconfigure $fd -translation binary -encoding binary | |
| 461 seek $fd 108 | |
| 462 set zRightChild [read $fd 4] | |
| 463 binary scan $zRightChild I iRightChild | |
| 464 seek $fd [expr 1024*($iRightChild-1)+3] | |
| 465 puts -nonewline $fd "\x00\x00" | |
| 466 close $fd | |
| 467 } -test { | |
| 468 do_test corrupt2-9.1 { | |
| 469 catchsql " $::presql SELECT sql FROM sqlite_master " | |
| 470 } {1 {database disk image is malformed}} | |
| 471 } | |
| 472 | |
| 473 corruption_test -sqlprep { | |
| 474 CREATE TABLE t1(a, b, c); | |
| 475 CREATE TABLE t2(a, b, c); | |
| 476 PRAGMA writable_schema = 1; | |
| 477 UPDATE sqlite_master SET rootpage = NULL WHERE name = 't2'; | |
| 478 } -test { | |
| 479 do_test corrupt2-10.1 { | |
| 480 catchsql " $::presql SELECT * FROM t2 " | |
| 481 } {1 {malformed database schema (t2)}} | |
| 482 do_test corrupt2-10.2 { | |
| 483 sqlite3_errcode db | |
| 484 } {SQLITE_CORRUPT} | |
| 485 } | |
| 486 | |
| 487 corruption_test -sqlprep { | |
| 488 PRAGMA auto_vacuum = incremental; | |
| 489 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 490 CREATE TABLE t2(a INTEGER PRIMARY KEY, b); | |
| 491 INSERT INTO t1 VALUES(1, randstr(100,100)); | |
| 492 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 493 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 494 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 495 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 496 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 497 INSERT INTO t2 SELECT * FROM t1; | |
| 498 DELETE FROM t1; | |
| 499 } -corrupt { | |
| 500 set offset [expr [file size corrupt.db] - 1024] | |
| 501 hexio_write corrupt.db $offset FF | |
| 502 hexio_write corrupt.db 24 12345678 | |
| 503 } -test { | |
| 504 do_test corrupt2-11.1 { | |
| 505 catchsql " $::presql PRAGMA incremental_vacuum " | |
| 506 } {1 {database disk image is malformed}} | |
| 507 } | |
| 508 corruption_test -sqlprep { | |
| 509 PRAGMA auto_vacuum = incremental; | |
| 510 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 511 CREATE TABLE t2(a INTEGER PRIMARY KEY, b); | |
| 512 INSERT INTO t1 VALUES(1, randstr(100,100)); | |
| 513 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 514 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 515 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 516 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 517 INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1; | |
| 518 INSERT INTO t2 SELECT * FROM t1; | |
| 519 DELETE FROM t1; | |
| 520 } -corrupt { | |
| 521 set pgno [expr [file size corrupt.db] / 1024] | |
| 522 hexio_write corrupt.db [expr 1024+5*($pgno-3)] 03 | |
| 523 hexio_write corrupt.db 24 12345678 | |
| 524 } -test { | |
| 525 do_test corrupt2-12.1 { | |
| 526 catchsql " $::presql PRAGMA incremental_vacuum " | |
| 527 } {1 {database disk image is malformed}} | |
| 528 } | |
| 529 | |
| 530 ifcapable autovacuum { | |
| 531 # It is not possible for the last page in a database file to be the | |
| 532 # pending-byte page (AKA the locking page). This test verifies that if | |
| 533 # an attempt is made to commit a transaction to such an auto-vacuum | |
| 534 # database SQLITE_CORRUPT is returned. | |
| 535 # | |
| 536 corruption_test -tclprep { | |
| 537 db eval { | |
| 538 PRAGMA auto_vacuum = full; | |
| 539 PRAGMA page_size = 1024; | |
| 540 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
| 541 INSERT INTO t1 VALUES(NULL, randstr(50,50)); | |
| 542 } | |
| 543 for {set ii 0} {$ii < 10} {incr ii} { | |
| 544 db eval " $::presql INSERT INTO t1 SELECT NULL, randstr(50,50) FROM t1 " | |
| 545 } | |
| 546 } -corrupt { | |
| 547 do_test corrupt2-13.1 { | |
| 548 file size corrupt.db | |
| 549 } $::sqlite_pending_byte | |
| 550 hexio_write corrupt.db [expr $::sqlite_pending_byte+1023] 00 | |
| 551 hexio_write corrupt.db 28 00000000 | |
| 552 } -test { | |
| 553 do_test corrupt2-13.2 { | |
| 554 file size corrupt.db | |
| 555 } [expr $::sqlite_pending_byte + 1024] | |
| 556 do_test corrupt2-13.3 { | |
| 557 catchsql { DELETE FROM t1 WHERE rowid < 30; } | |
| 558 } {1 {database disk image is malformed}} | |
| 559 } | |
| 560 } | |
| 561 | |
| 562 #------------------------------------------------------------------------- | |
| 563 # Test that PRAGMA integrity_check detects cases where the freelist-count | |
| 564 # header field is smaller than the actual number of pages on the freelist. | |
| 565 # | |
| 566 | |
| 567 reset_db | |
| 568 do_execsql_test 14.0 { | |
| 569 PRAGMA auto_vacuum = 0; | |
| 570 CREATE TABLE t1(x); | |
| 571 INSERT INTO t1 VALUES(randomblob(3500)); | |
| 572 DELETE FROM t1; | |
| 573 } | |
| 574 | |
| 575 do_execsql_test 14.1 { | |
| 576 PRAGMA integrity_check; | |
| 577 PRAGMA freelist_count; | |
| 578 } {ok 3} | |
| 579 | |
| 580 # There are now 3 free pages. Modify the header-field so that it | |
| 581 # (incorrectly) says that just 2 are free. | |
| 582 do_test 14.2 { | |
| 583 db close | |
| 584 hexio_write test.db 36 [hexio_render_int32 2] | |
| 585 sqlite3 db test.db | |
| 586 execsql { PRAGMA freelist_count } | |
| 587 } {2} | |
| 588 | |
| 589 do_execsql_test 14.3 { | |
| 590 PRAGMA integrity_check; | |
| 591 } {{*** in database main *** | |
| 592 Main freelist: free-page count in header is too small}} | |
| 593 | |
| 594 # Use 2 of the free pages on the free-list. | |
| 595 # | |
| 596 do_execsql_test 14.4 { | |
| 597 INSERT INTO t1 VALUES(randomblob(2500)); | |
| 598 PRAGMA freelist_count; | |
| 599 } {0} | |
| 600 | |
| 601 do_execsql_test 14.5 { | |
| 602 PRAGMA integrity_check; | |
| 603 } {{*** in database main *** | |
| 604 Page 3 is never used}} | |
| 605 | |
| 606 | |
| 607 finish_test | |
| 608 | |
| 609 finish_test | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2846743003:
[sql] Remove SQLite 3.10.2 reference directory. (Closed)
