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static-sql
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22 Commits

Author SHA1 Message Date
stephan
891eb44d4d Minor hardening of the fossil delta extension against malformed deltas. Based on suggestions from Dan Mestas. 
FossilOrigin-Name: 4528f00d5a189f4cc3a3ecf5b3afa13f103cf438f923e19eb0bbe4c4e369e8ec
 2026-10-12 09:49:25 +00:00
drh
220b580fc7 Fix minor issues with the delta_parse() table-valued function in the 
fossildelta.c extension.  Add test cases for the fossildelta.c extension.
[bugs:/info/2026-09-09T10:29:35Z|Bug 2026-09-09T10:29:35Z] and
[bugs:/info/2026-09-09T10:55:54Z|Bug 2026-09-09T10:55:54Z].

FossilOrigin-Name: 737ab94632c7745d3fd1f82894a1c8174db59350a33329660681398dd604c4d0
 2026-09-09 13:49:42 +00:00
drh
1b2a4a37b0 Reduce divergence between ext/misc/fossildelta.c, 
the delta code in ext/rbu/sqlite3rbu.c, and Fossil itself.

FossilOrigin-Name: 7f49a7a90eda01753c0dff65197bd7bc48a751e24a46919d30af6e2baf0788fc
 2026-07-06 16:26:30 +00:00
drh
2f13a51628 Fix possible one-byte OOB read in the fossildelta.c extension. 
[bugs:/info/2026-07-04T04:53:59Z|Bug 2026-07-04T04:53:59Z]

FossilOrigin-Name: 8001a373d1c91f92639fb34fca18f9667f1ee92eb6bfa49df06b8cc256385292
 2026-07-04 09:22:27 +00:00
drh
84ead09d94 Harden code that processes Fossil Deltas against OOM and maliciously 
malformed delta blobs.
[bugs:/info/2026-06-10T07:01:00Z|Bug 2026-06-10T07:01:00Z] and
[bugs:/info/2026-06-10T07:06:43Z|Bug 2026-06-10T07:06:43Z].

FossilOrigin-Name: 67271c31292bc1bddbb5e144c881c85c9f91b3963a1db4bae1f738adab50f7c0
 2026-06-10 09:51:33 +00:00
drh
4d3f3c7070 Security enhancements to the untested and unused fossildelta.c extension. 
Bug reports [bugs:/forumpost/3ac3fe3d71|3ac3fe3d71] and
[bugs:/forumpost/e7e470b760|e7e470b760].

FossilOrigin-Name: 2d3fbbe421d3b0ad8fa08255fd30af7f2d947919ebb90fa9c9c4ee72ffd880b4
 2026-05-19 11:15:33 +00:00
drh
34e139d3a3 Always use sqlite3_malloc64() in extensions, where possible. 
FossilOrigin-Name: 6194f3b5314ef98b5d73060450de8e3497272494b47e6f96992453418894ded1
 2026-04-01 16:56:48 +00:00
drh
9a341c1edb Avoid unsigned integer overflow in the delta_apply() extension function. 
Not part of any standard deliverable.  
[forum:/forumpost/d41879b367c7f7ec|Forum thread d41879b367c7f7ec].

FossilOrigin-Name: b354dd12c25c820c04b08e0be4ba8c095fc648dfb4b71345aacce50a17fd269a
 2026-01-12 19:56:00 +00:00
drh
c2cd606f8a Prevent a malicious delta from causing an integer overflow in the 
fossildelta extension.  This code is not used in the SQLite core.

FossilOrigin-Name: 01409738afc2c0d5bdaa248ffb508aa5f36a66390f6b8e4834734529ee8ed2fa
 2025-12-11 23:24:05 +00:00
drh
e2ebc364cd Fix typo in the previous check-in. Remove surplus end-of-line whitespace 
from the ext/misc/fossildelta.c extension.

FossilOrigin-Name: cc87551805dc1fcb05598339e526b304401b64a4eaaa2148a9d837b1423484ce
 2025-10-02 19:35:58 +00:00
drh
0d9ec8b2ee Harden the debugging vtab "delta_parse()" which is part of the 
ext/misc/fossildelta.c extension against malicious inputs.
[forum:/forumpost/be139437c3|forum post be139437c3].

FossilOrigin-Name: 4be6deee646f2c0f591ba81f902182ca9302050a7fb2729c7f64981307058b8b
 2025-10-02 19:19:40 +00:00
drh
8a6f89c845 Remove unnecessary "www." prefixes on domain names in URLs. 
FossilOrigin-Name: 20acd630b91609725794ce84f9eda01d5f3c898407f0948264830851d25ccaa6
 2025-04-10 10:18:07 +00:00
drh
1935887a68 Ensure that all fields of static sqlite3_module objects are explicitly 
initialized, in order to hush-up nuisance compiler warnings.

FossilOrigin-Name: f3b3d712d6e58b1cb8fdebd2b6b3125080b6b3ac8c7c849a8cc1e5e778d62fe7
 2023-10-06 12:51:05 +00:00
drh
2e22579dea Fix the fossildelta.c extension so that it will compile on mingw. 
FossilOrigin-Name: 20237d5dc4451f142b511e50a4acef4574cef17b9222c87dcebfe1ed1bab0ad9
 2020-01-09 23:07:21 +00:00
drh
2b1c2aad9f Create the "trusted_schema" pragma. Add sqlite3_vtab_config() calls to set 
the risk rank for many virtual tables.

FossilOrigin-Name: 4c21373c21c9b17b222ae65297a039a035e6ec6b505c00c33704e3c03f94f834
 2020-01-07 19:45:40 +00:00
dan
1c70f71e12 Avoid redefining types u32 and u16 when fossildelta.c is compiled as part of the amalgamation. 
FossilOrigin-Name: d8e88248e3204b5f2b95b9b8921ee7ee2f7574ae81e6abd5b4f2ddf187f7d71b
 2019-07-23 13:26:43 +00:00
drh
3517cc7f36 Fix a memory leak in the delta_parse() table-valued function of the 
fossildelta.c extension.

FossilOrigin-Name: c86ca3f0220a5f9e7f7f1818f6e1220d851f3ebed6a5f0aae6ac38309bd2930e
 2019-05-27 11:09:55 +00:00
drh
75db74fdae Improved comments on the fossildelta.c extension. 
FossilOrigin-Name: d7d23f0450d659b2c7df34e4df8623ca7b6fe3bd19422e3e9234515214ae8510
 2019-03-02 20:09:35 +00:00
drh
c3017e7b4a Update comments on the fossildelta extension. No changes to code. 
FossilOrigin-Name: 9da4fb59b28686630d63a79988b458726332cf06cc0e6e84d7c0a7600f5fcab0
 2019-02-25 14:52:43 +00:00
drh
2a98b586c8 Enhance the xBestIndex method on delta_parse() to return SQLITE_CONSTRAINT if 
no delta argument is supplied.

FossilOrigin-Name: f16d127c3b4a735afae1fc236bcf90f31adff079c7d3a896f901d908ff8b8532
 2019-02-19 20:29:05 +00:00
drh
2d441ce3f3 Add the delta_parse(DELTA) table-valued function to the fossildelta 
extension.

FossilOrigin-Name: d91fcc267bf1be795dfdb1fbfb40c2aea79ddff247a51d26462136c325b7a6d3
 2019-02-19 20:19:51 +00:00
drh
4bec44bdfa Add the fossildelta.c extension in ext/misc with implementations of the Fossil 
delta functions.

FossilOrigin-Name: b80cafa6f8a5c6ff1dc9efd2f670777ab131ace2df1eb431cedc8cfa901baf18
 2019-02-19 18:39:16 +00:00