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20,306 Commits 1,608 Branches 185 Tags
e22976c5357fb6501cb0dd40220b8d48bd9295bb
Commit Graph

1354 Commits

Author SHA1 Message Date
dan
b95e1193d5 Avoid a buffer overread when comparing against a corrupt record that spans at least one overflow page. 
FossilOrigin-Name: 62a5b3633a086694ef0e579a0a82322cb1ae3d60
 2015-05-26 20:31:20 +00:00
dan
633d0753ab Add a cast to one side of the test added by [97806a78] in order to avoid a signed/unsigned comparison warning. 
FossilOrigin-Name: 5b46d2a78a45de4176b666bfc89c2aaa6f083662
 2015-05-26 17:33:30 +00:00
dan
fb0246ba8a Return SQLITE_CORRUPT to the user if an attempt is made to add database page 1 to the free page list. 
FossilOrigin-Name: 68876003f922635737349f55bc73a78891ea7028
 2015-05-26 12:18:17 +00:00
dan
c3e8ef1d0e Fix a case of a corrupt database causing SQLite to read from up to 4 bytes before the start of a memory allocation. 
FossilOrigin-Name: 7d2c4f7b6695806ab8ce0c6f49d8bc1d77a4320b
 2015-05-25 20:04:15 +00:00
dan
08f901b008 Have the b-tree layer return SQLITE_CORRUPT to any attempt to open a cursor with a root page number less than 1. 
FossilOrigin-Name: aa18c8e9d1676b1caa53bc5f5c1dc5f201089b88
 2015-05-25 19:24:36 +00:00
dan
0f8076dd69 Fix a couple of btree asserts that would fail when encountering 32-bit rollover in cell payload size fields (cell payloads this large always indicate corruption). 
FossilOrigin-Name: 8fa0937a2f3476dd280259e252d6f422c33d38ee
 2015-05-25 18:47:26 +00:00
dan
2fc3a6cd98 Fix a case where database corruption may cause SQLite to write past the end of a buffer. 
FossilOrigin-Name: 97806a78142b15f89878e25ee70dc5b0524d6793
 2015-05-25 17:07:29 +00:00
dan
cf3d17c604 Fix an assert() in btree routine freeSpace() that may be false if the database is corrupt. 
FossilOrigin-Name: 00a473c56188cd60a74559effb114140e3fe8a8d
 2015-05-25 15:03:49 +00:00
drh
7ca0954c2c The assert() changes removed in the previous check-in are needed after all. 
FossilOrigin-Name: 336fccc84cd7b770c9c3720efc9976269096232e
 2015-05-24 21:46:03 +00:00
drh
0b538f2a81 Better detection of corruption in allocateSpace() in btree.c. 
FossilOrigin-Name: bf7bb53ee2485a5342916d514d6c7291eb84c5f1
 2015-05-24 21:09:52 +00:00
drh
a1f75d96fd Detect database corruption in the modifyPagePointer() routine and abort. 
FossilOrigin-Name: 4f0bba42f904e505900be67b00179ebb1f24ed03
 2015-05-24 10:18:12 +00:00
drh
82110da971 Instead of early detection of corruption in balance_nonroot, simply ignore 
the error, as it is harmless and exceedingly uncommon.

FossilOrigin-Name: 7bbf9b3cd6ebf103ebd8347579aef721d0dcd2dc
 2015-05-23 19:53:48 +00:00
drh
3183ac590d Earlier detection of a specific kind of corruption in the balance_nonroot() 
routine.

FossilOrigin-Name: ee6dc9913a8733891576e6e298241f7440209c5e
 2015-05-23 19:29:08 +00:00
drh
cea1dc2798 Fix another bad assert() in btree - one that can be false on a corrupt database 
file.

FossilOrigin-Name: 89f0bbfde4d86a7b15e93aab9c487b4355c6fb2d
 2015-05-22 23:39:29 +00:00
drh
afe028a815 Fix two faulty assert statements discovered by fuzzing. 
FossilOrigin-Name: 799817bfb2bc95963c0e0d70063c4cb15c94ef74
 2015-05-22 13:09:50 +00:00
drh
499e15bee1 Fix an assert in btree.c that can be false when using a corrupted database 
file.

FossilOrigin-Name: a6eb2a39357c35dc13d549ef86c785ff5c69938a
 2015-05-22 12:37:37 +00:00
dan
dd14ecbca5 Fix a faulty assert() in the btree part of the "PRAGMA page_size = ?" code. 
FossilOrigin-Name: 90b197489a37e01dcb2f3a8182848c1301e1757b
 2015-05-05 10:03:08 +00:00
drh
c049057242 Cleanup of the sqlite3StrAccumInit() function. No functionality changes. 
FossilOrigin-Name: 7952c32268aa650d9ee946d5bfe190f712e3bbe6
 2015-05-02 11:45:53 +00:00
drh
42c0a2b2f3 Fix comment typos. No code changes. 
FossilOrigin-Name: 60174cf572f8788e67a0434d5fe763724d7425a3
 2015-04-28 01:28:36 +00:00
drh
a33b68364b Use a heap rather than a bitmap for cell coverage and overlap testing on 
btree pages in PRAGMA integrity_check.

FossilOrigin-Name: e94b2ef2242d716379a35dba3d2df1ac512c8d30
 2015-04-16 21:57:37 +00:00
drh
67731a97a2 Use a heap instead of a bitmap for cell overlap and coverage testing of 
btree pages in PRAGMA integrity_check.

FossilOrigin-Name: 5619c959bf7babb19fd8ba8b228be7f090fe0ce3
 2015-04-16 11:56:03 +00:00
drh
f3392e32c7 Prevent the fetchPayload() routine from reporting a cell size that extends 
off the end of the page on a pathologically corrupted database file.

FossilOrigin-Name: f71053cf658b3260a32ac06f8ba5c2cde0ea54dd
 2015-04-15 17:26:55 +00:00
drh
c01501a386 Remove a faulty assert() from the btree balancing logic. 
FossilOrigin-Name: d06669d968c8f6af8799fbfeabadaab68b9b8db8
 2015-04-13 14:44:01 +00:00
drh
ccf46d0b90 Improved detection and suppression of endless loops in clearDatabasePage(). 
FossilOrigin-Name: 30011ad2f55cfcacaf23a58ebcc17b17a7b9355e
 2015-04-01 13:21:33 +00:00
drh
6b5f0ebe97 Handle very large URI pathnames for in-memory shared-cache databases. 
FossilOrigin-Name: 586a94e85bc13700a2093734711c1367fa814b8c
 2015-03-31 16:33:08 +00:00
drh
116f0be024 Prevent a possible infinite loop when trying to DROP a table from 
a corrupt database.

FossilOrigin-Name: 395bb3e677a6551b06ba96fc58c393132b93d1e8
 2015-03-30 23:43:56 +00:00
drh
606a357288 Change an unreachable branch into an assert(). 
FossilOrigin-Name: fb076b28c36975ff2e41440f22fe5de115c195da
 2015-03-25 18:29:10 +00:00
drh
d2f83139f3 Fix the saveCursorPosition() routine in btree.c so that it works 
correctly for a eState=CURSOR_SKIPNEXT cursor.

FossilOrigin-Name: 37866b4d483296ab9b7fcb9f5486695d4c2b8ddd
 2015-03-25 17:35:01 +00:00
drh
cbd3349ab9 Reactivate an older assert() (adding an "|| CORRUPT_DB" term) and add a 
new assert() in btree.c.

FossilOrigin-Name: 1e96520ac1d12ca83f019a60482efa0a074f2f94
 2015-03-25 13:06:54 +00:00
drh
f94c9485ef Add two new assert()s to the sqlite3BtreeDataSize() method. 
FossilOrigin-Name: 42d1793d6516e285a8925bbfd96b3d3375603d15
 2015-03-25 12:05:49 +00:00
drh
062cf27d00 Fix datetype size asserts in btree.c. 
FossilOrigin-Name: ff4812d0e8e6322ca8b6992925fd4ef4aee463e6
 2015-03-23 19:03:51 +00:00
drh
e0997b341b Provide the BTREE_SEEK_EQ hint to the b-tree layer. 
FossilOrigin-Name: e750830f1e61160c0c67e35b13e50b35a95b50e1
 2015-03-20 14:57:50 +00:00
drh
ad0961b31b Keep track of the optimal number of reserved bytes (by looking at reserve 
byte requests in calls to sqlite3BtreeSetPageSize()) and then change the
reserve byte count to the optimal when doing a VACUUM or when using the
backup API.

FossilOrigin-Name: 28c2b726285ea88b334acfd6390a057d2d244838
 2015-02-21 00:19:25 +00:00
drh
1ffede8c86 Change SQLITE_TESTCTRL_INITMODE to SQLITE_TESTCTRL_IMPOSTER. Revise the order 
of parameters.  Give it the ability to reset the schema parse table so that
imposter tables can be erased.

FossilOrigin-Name: 42d5601739c90434e5adfda8fa99ef7b903877db
 2015-01-30 20:59:27 +00:00
drh
37c057b8ff Round all object sizes that go into computing SQLITE_CONFIG_PCACHE_HDRSZ up 
to a multiple of 8 bytes.

FossilOrigin-Name: b28ce75f2d3a6343dc20d581dc55afae89ab5efa
 2014-12-30 00:57:29 +00:00
dan
ee7172f12a Fix a failing assert() in balance_nonroot(). 
FossilOrigin-Name: e2e323145f66cca31babe1a979db6ef97038b879
 2014-12-24 18:11:50 +00:00
drh
3da9c04712 Redefine the way PRAGMA data_version works: It continues to change when 
any other connection commits, including shared-cache connections, but does not
change if the local connection commits.

FossilOrigin-Name: 7a97826f33460f3b4f3890c9cf97116c3355eeda
 2014-12-22 18:41:21 +00:00
drh
9161856495 Experimental "PRAGMA data_version" command for detecting when another process 
has changed the database file.

FossilOrigin-Name: 43db1f44bce5a0ee50197b95ab0d844540b69d86
 2014-12-19 19:28:02 +00:00
drh
7efa426ee9 Make sure the sqlite3BtreeCount() routine does not leave index cursors in an 
inconsistent state, as doing so might result in an assertion fault inside
of sqlite3BtreeKey() called from saveAllCursors() if content is deleted out
from under the statement that issued the sqlite3BtreeCount() call.

FossilOrigin-Name: 5b1b697040116048e464b3ebab8395fe088e389a
 2014-12-16 00:08:31 +00:00
dan
857536623a Fix a race condition to do with very large index keys in shared-cache mode. 
FossilOrigin-Name: fc157dd7f18c94b7ae5f155e1b4a5d7714b7da8c
 2014-12-11 16:38:18 +00:00
mistachkin
0fbd7350a1 Fix harmless compiler warning. 
FossilOrigin-Name: e97b7a8b4df784d148fefb9554da0f511e351d9f
 2014-12-09 04:26:56 +00:00
dan
8f1eb8a1cb Avoid accessing a single uninitialized byte when moving a rare 3-byte cell from an internal page to a leaf. This was not actually causing a problem, just a valgrind warning. 
FossilOrigin-Name: 6aeece19a235344be2537e66a3fe08b1febfb5a0
 2014-12-06 14:56:49 +00:00
drh
d52d52be80 Fix a (harmless) uninitialized variable reference in b-tree balancing for 
auto-vacuumed tables with overflow pages.

FossilOrigin-Name: dd1dd4451f468599f7a0c2f7b5ee6125db3bb152
 2014-12-06 02:05:44 +00:00
drh
1fd2d7d471 Convert two unreachable branches into assert() statements. 
FossilOrigin-Name: 61b31e771430f490fc2c4cef55046debc4a5f4f5
 2014-12-02 16:16:47 +00:00
drh
5ab63775dd Fix a problem in the new b-tree balancer that was causing corruption of 
the fragmentation count.

FossilOrigin-Name: f242394e079dd185aad90f2aee902a5edf27e150
 2014-11-27 03:46:04 +00:00
drh
fdab02635c Ensure that when the number of cells on a page drops to zero that the freelist 
and fragment counter are both cleared.  Also add evidence marks corresponding
to file-format documentation.

FossilOrigin-Name: ef9fbc08b0a047042deeb2d6007d67028fefb9e2
 2014-11-20 15:30:50 +00:00
drh
113762a284 Add new requirements marks associated with the file format documentation. 
No changes to code.

FossilOrigin-Name: 6d00bcca6ed1903fb17275752cab71c14392355b
 2014-11-19 16:36:25 +00:00
drh
64b600ff13 Merge in all the other ROLLBACK fixes from the branch-3.8.7 branch. 
I don't know why I was doing them one-by-one.

FossilOrigin-Name: 296b0c7397790ceadbdb330959e962f6491abc3e
 2014-11-18 20:49:30 +00:00
drh
bea3b976a9 Fix a bug in the sqlite3TripAllCursors() routine that prevents it from 
reporting errors.  It is unknown at this time whether or not this omission can
result in any incorrect result in an actual query.

FossilOrigin-Name: 2896f2640ab3e102ee248d20fb68c497817524eb
 2014-11-18 20:22:05 +00:00
drh
c5352b996a Remove code from sqlite3BtreeKeySize() made unreachable by the previous 
check-in.

FossilOrigin-Name: 57c4aa988c8eda3cc513c1e5df5804d88bee99a0
 2014-11-17 20:33:07 +00:00