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session-fixes
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Author SHA1 Message Date
dan
535b1f2875 Fix some buffer overreads that might occur in the session module when handling corrupt changesets. 
FossilOrigin-Name: 8fcf92e15d87487703afc1129f3a89a8d4d72cb30d30a1a9151a5596473069bd
 2026-04-09 05:33:19 +00:00
drh
a7200804eb Fix a buffer overflow bug in a recent check-in, reported by unsolicted 
email from OpenAI/Codex.

FossilOrigin-Name: be891a137af15897691250324e4d3d9c96f0c5fb414bca27d0c3bfdd3012a8a2
 2026-04-08 17:00:33 +00:00
stephan
0d979c217f Fix a few doc typos and inconsistencies. No code changes. 
FossilOrigin-Name: 025abd4cf409fb9938e116289f23dc5bcd6d14feb46066221e691b146ee9b354
 2026-04-07 15:54:35 +00:00
drh
e9af8caac0 Fix incorrect datatype on the auto_ext_leak_tester() function in the CLI. 
FossilOrigin-Name: 4a36454904e1c5e7d25406713ab0125f11df66eabe0d378edcb837ef8dedc981
 2026-04-07 12:51:52 +00:00
drh
606c64a543 Fix redundant typedef in qrf.c when that file is amalgamated into 
tclsqlite3.c.

FossilOrigin-Name: b8f0c71b48953cb6d5a8b3d33d004a31b63c59d59d455f285bf8fa91c3b07129
 2026-04-07 11:31:41 +00:00
stephan
eefe3aa9ad Replace a doc reference to a renamed file, as reported by [forum:5d9d70c618|forum post 5d9d70c618]. No code changes. 
FossilOrigin-Name: c8121593fa455cd43b3878f8b65ebac47c07dab4b8ce081aa34b14fc9440afbc
 2026-04-07 09:15:21 +00:00
stephan
fcef193a82 Add a dummy auto-extension to the shell in SQLITE_DEBUG builds to validate that [9d56df17b4ab49] does the right thing. 
FossilOrigin-Name: 164af3703b8fb5d88612edcceeaae0ae5a230c34c7a0f2ac9b650f5a742b2787
 2026-04-06 22:00:20 +00:00
stephan
8e7ffc09f5 Add a call to sqlite3_reset_auto_extension() near the end of shell.c.in:main() to squelch a leak message when SQLITE_EXTRA_INIT adds auto-extensions, as reported in [forum:310cb231b07c80d1|forum post 310cb231b07c80d1]. 
FossilOrigin-Name: c4dd7e8b36deced3ee9cc6b5f87d8b3cc9a752cad8d62c9b711c7b58db11834b
 2026-04-06 20:24:02 +00:00
drh
9ad63c0f4e Appease static analyzers by masking the index to the 
WalHashLoc.aPgno array to make it easy to prove that there
is never OOB read or write.

FossilOrigin-Name: 9d56df17b4ab4940f7bc24488a9df118f6172fcfbf3e5cb95bdcbd2db2a07911
 2026-04-04 14:43:37 +00:00
stephan
d4b74b9fac Add some comments to the OPFS async proxy about potential future experimentation. No code changes. 
FossilOrigin-Name: 9c14ee74305a5db3be95dbd9ae8d1db0abf39b323001be4e2f02b7226e6ca0d3
 2026-04-04 08:07:25 +00:00
drh
7ff8b558e8 Enhance testrunner.tcl so that a PATTERN argument that begins with "~" is 
an "anti-pattern".  Only run tests that match one or more patterns if there
are any patterns *and* do not match any anti-pattern.

FossilOrigin-Name: c313d91bb67b56be2db46194c3baa5a72b469595de3b2abe249612838dc175e4
 2026-04-03 19:48:01 +00:00
stephan
bb6d2a5f07 configure script: replace two 'file normalize' calls with file-normalize (a tcl/jimsh compatibility issue) to fix --with-linenoise. Problem reported in [forum:ce688d13793bd78f|forum post ce688d13793bd78f]. 
FossilOrigin-Name: 2be1c5a3e47f1276b9f0a4771f2d5fb0bc1ccb907c855caa04d757b4145533f5
 2026-04-03 13:54:48 +00:00
drh
217c590688 Fix Tcl9 compatibility issues in test_session.c. 
FossilOrigin-Name: 1387b5819085146cafb0e8740410faaa48bfb5aefc78ff763aaa8e85744d48b3
 2026-04-03 11:48:00 +00:00
drh
fc19b2ca8a Minor patch to test/json/json-speed-check.sh. That script is not maintained, 
but this fix at least gets it working for now.

FossilOrigin-Name: 9d92e371ca375776d251fe446f17a437823cc96e48a5c45f42cb0768d0a47f65
 2026-04-02 16:21:47 +00:00
dan
62f3150204 Fix a potential 4-byte overread in the sessions module when processing a corrupt changeset. 
FossilOrigin-Name: c1c7e024c34da8eb0258ce552f3f81921280ccf0f1fea59374f381c0c7b43b74
 2026-04-01 17:43:22 +00:00
drh
34e139d3a3 Always use sqlite3_malloc64() in extensions, where possible. 
FossilOrigin-Name: 6194f3b5314ef98b5d73060450de8e3497272494b47e6f96992453418894ded1
 2026-04-01 16:56:48 +00:00
dan
6e6598c8ff Fix a problem in the sessions module allowing a NULL pointer to be passed to memcpy(). 
FossilOrigin-Name: 91ead3c62dd7b1db3fdfd318e3c35a42fb33e8fa2e347b682eecbff2f4e8677b
 2026-04-01 16:11:47 +00:00
drh
e230de2cbf Minor improvements to the documentation on how to compile for Unix. 
No changes to code.

FossilOrigin-Name: 7bc1d0c4572f126cfe68fa51fe992d2bd46b1e57c04721991bd5fad36dd795c5
 2026-04-01 11:54:20 +00:00
stephan
eb8edc0bac Doc cleanups in opfs-wl. No code changes. 
FossilOrigin-Name: 009b576dcd5fccaaa52459dbfaa1b2a6fcf6d372e4b8d63553dfa88aab9a759c
 2026-04-01 11:39:13 +00:00
drh
d6226a9c27 Add appropriate headers to ext/session/sqlite3session.h so that the 
documentation generator will pick up the API documentation for the
new one-at-a-time changegroup APIs.

FossilOrigin-Name: da514f10b7804fd0affaf0fd4b8089012288ba99c165ef4ab78ab28edd331211
 2026-03-31 18:49:23 +00:00
dan
d9f047bd15 Add an API to the sessions module to add changes one at a time to an sqlite3_changegroup object. 
FossilOrigin-Name: cf1122ea6409bcbd341b67ae45147abb8d5cd491ae95491c801d0621181da40b
 2026-03-31 10:59:13 +00:00
dan
5e4fb95edf Update this branch with changes from trunk. 
FossilOrigin-Name: 716e62e3d1d6ff96f6e4906175818439103e9534e89bec4a86776265a04954b9
 2026-03-31 10:52:00 +00:00
drh
60b829e0db Turn an incorrect assert() into a testcase(). Fix over-length code lines 
in the sqlite.h.in source file.  Fix the documentation on OOM conditions
in the sqlite3_value_text() family of APIs.

FossilOrigin-Name: 934582706109d2ebda26952c7c95f7a5095fa47ec837570a66c991866f7d08cf
 2026-03-31 10:32:23 +00:00
stephan
f92d107242 Move some build docs around for clarity. Move the TARGET_DEBUG flags from the end of T.cc to the beginning so that -Ox flags can be passed to make for specific binaries without having to reconfigure. 
FossilOrigin-Name: 240294653ceb202b847699e9691140db4fe623a03d86fa3cf7495f8831576331
 2026-03-30 15:44:20 +00:00
drh
b060cecb2e Remove an unused variable in sqlite3Reindex(). Minor enhancements to the 
header comment on sqlite3AtoF().

FossilOrigin-Name: fbba900728d444f6a0b428197ebb41fe039b235e18caa2243c9f8f04fce42595
 2026-03-30 10:00:48 +00:00
drh
9660a4dec0 Enhance the printf() formatter to write floating point conversions directly 
into the output buffer, rather than staging into an intermediate buffer.

FossilOrigin-Name: ccb6b6c4ac21742dbfc435cf3a2a0dc887075b3e0877aea7ed8eace08b7b5571
 2026-03-29 23:37:16 +00:00
drh
0cb576f306 Fix harmless compiler warnings about unused variable assignments. 
FossilOrigin-Name: afe7e9fd1c476c7cdcefab0adf0191a8dc3283811f72a685fff3eb6539b72dcc
 2026-03-29 22:41:12 +00:00
drh
6d27844bbe Merge trunk performance enhancements and fixes into the direct-printf branch. 
FossilOrigin-Name: 9fa9cd11f8f5f7591168870c6e41121221b58a4a3094e708e3fa5bab1502f190
 2026-03-29 19:23:47 +00:00
drh
03f13d77a5 Avoid using unsigned 64-bit integer division on platforms that do not support 
it in hardware.

FossilOrigin-Name: 2197677491dfc5ec87b57bbf807776875248a250f80ce9a5ce94ae385bb1d2bc
 2026-03-29 19:06:36 +00:00
drh
445fbc61c8 The _umulh() intrinsic function is not available on 32-bit windows. So don't 
use it there.

FossilOrigin-Name: e75f30c7e66e725a2f3f46c7d4d69a2ff925e2de9a86c3a6ec38897545b43a58
 2026-03-29 10:32:25 +00:00
drh
eb0cb3f53b In sqlite3_str_vappendf(), write floating-point renderings directly into 
the output buffer, saving a memcpy().

FossilOrigin-Name: e4e040e7aaaf5bfccbf0414fee3d08c5fdc24e03d1118dce92d2dd16c614ce63
 2026-03-28 20:24:47 +00:00
drh
5239e69fb1 Remove a harmless unused variable from the fp-speed-2.c benchmark. 
FossilOrigin-Name: ff9008e7615d877e6cc852c60097777006b274971646d368eaa56b99a7acf6c7
 2026-03-28 14:21:53 +00:00
drh
20d93e16d7 Enhancements to the fp-speed-N.c programs, suggested by Andreas Kupries. 
FossilOrigin-Name: 7d81ff4c509d4039ef9e2f1066284ec560131422db0cbffa7e1826d71bb8f8e1
 2026-03-28 14:17:53 +00:00
drh
c409eaaf14 Reduce the compiled size of the quote() SQL function. 
FossilOrigin-Name: 9ea980a35628f7d0741ab6c65840ab9dab8abb576c6c60109147336452f9637a
 2026-03-28 13:59:34 +00:00
drh
2e01416762 Turn an sqlite3VMPrintf() into an sqlite3DbStrDup(). 
FossilOrigin-Name: 75e8703664ae94244284819d9021877a5fc33a268fb86f3e70de20875a766d80
 2026-03-28 13:30:47 +00:00
drh
ff8a0895d6 Fix up the floating-point speed tests so that they only need to be run once 
to get a performance comparision.  Provide the fp-speed-test makefile target
to build and run them both.

FossilOrigin-Name: 09e0e78a8265c2e2bc36fef1fa88bd5bf414f9b776966c1c91a4ed4b7866331d
 2026-03-27 20:18:06 +00:00
drh
a2f78f665c Add a comment to test/fptest01.sql to remind us that failures in that 
script might not be the fault of SQLite.

FossilOrigin-Name: 65efcb0a2ed49fa2fd747b5f034d976ed3cb4a01a185bcada70bf8a5208f3841
 2026-03-27 19:25:25 +00:00
drh
c4cedd7ffe New test cases for text→float conversions. 
FossilOrigin-Name: bbf2d648376a965605d5c641a889ab7ef365bc53788d984c054468e9889deee6
 2026-03-27 18:58:50 +00:00
drh
00c6eca32c Enable the use of intrinsic high-precision multiplies on Windows ARM. 
Make the SQLITE_DISABLE_INTRINSIC option effective on high-precision
multiple subroutines, for testing purposes.

FossilOrigin-Name: efb6212de4ca998546329b06b43122f0fffa3759e4615ca3357ef9fa13606d44
 2026-03-27 16:09:10 +00:00
drh
be2242d2ee Change the print resolution the fp-speed-1.c test to 17 digits. 
FossilOrigin-Name: c687b32a956315ddf4336df42deb4037c37d51b536b8a24c5cef4c5a0bc4c79b
 2026-03-27 14:54:01 +00:00
drh
2dd3b4a646 Update fp-speed-1.c and fp-speed-2.c to include its own timers, so that it 
works on platforms that lack the "time" command.

FossilOrigin-Name: 9b083070de2d782fe1db62652af8f3cd48abe16b55b974f3927b738e3d914887
 2026-03-27 14:19:01 +00:00
drh
4570aeb7bc Add the fp-speed-2.c performance test program. 
FossilOrigin-Name: b788256f1980531e7abb15c5fbcdd40ae166f091aea28f449c0407105ddf1aa4
 2026-03-27 14:03:41 +00:00
drh
1283969f26 Add a comment showing reserved file-control numbers to sqlite3.h 
FossilOrigin-Name: cd472d7c85f3fda54bba5166eae72b5f9b86861c4a1160583e8ee902ba992255
 2026-03-27 11:46:11 +00:00
stephan
772ea2f01c Add SQLITE_STRICT_SUBTYPE to PRAGMA compile_options, an omission reported in [forum:3906a71526|forum post 3906a71526]. 
FossilOrigin-Name: c5af6a10245b6b847d30002806c1577b020c36ab27f7b1cf202ade136aa4779c
 2026-03-26 19:11:57 +00:00
drh
d4af925e34 Enhance the return value from sqlite3AtoF() so that it reports if the input 
includes more than 19.25 significant digits.

FossilOrigin-Name: 1721c8da769816ca16104cd636299d84f682fc004938a50056b76b269e49e915
 2026-03-26 18:19:47 +00:00
drh
61d3bc8ddc Revamp the return code from sqlite3AtoF() for additional information and 
for small speed improvement and size reduction.

FossilOrigin-Name: f10a431eade20ecd4c4d501fc534e2dae6ab2fe67302ea7bb3cd6eba127848fc
 2026-03-26 16:33:03 +00:00
drh
f9a3b78561 Improvements to the sqlite3AtoF() interface. Add a test-control for 
direct testing of sqlite3AtoF().

FossilOrigin-Name: 97ee48b6ef65fb55633196282c9e75b3b0a3b81ba9755f63493a38e3f1a5610c
 2026-03-26 14:19:34 +00:00
drh
f855727e45 Back out the sqlite3_atof() API, for now. 
FossilOrigin-Name: 7568d264be3988df195401158d8d07105b8e9e018eccf98ac948219bee9388ac
 2026-03-26 12:09:37 +00:00
drh
3d58f022a8 Fix an off-by-one error that cause a loop to (harmlessly) run more times 
than necessary.  Performance optimization, not a bug fix.

FossilOrigin-Name: 58f4e058f1cbb798b8a48208c6310fd10ca9cd1fc7c550f3ed283cf38ae45c2f
 2026-03-25 21:23:23 +00:00
drh
7e9eaf3c1f Performance optimization when zero-padding in printf(). 
FossilOrigin-Name: dbd81abdc6633124e72999321db6fc8640851fa5eb063e6317a4c3e57b48dbaa
 2026-03-25 21:05:18 +00:00