sqlite

Files

T

drh 95d072cc81 Clearly mark the ext/misc/wholenumber.c extension as "testing and

debugging use only".  Fix a potential integer overflow that can occur
if the above warning is ignored.
[bugs:/info/2026-06-04T09:40:28Z|Bug 2026-06-04T09:40:28Z].

FossilOrigin-Name: 44154ea9ae99d532d5c7268d70bd8b32751f7a82c367c7bd1ec0e6948d71d1b8

2026-06-04 11:18:11 +00:00

amatch.c

Fix an integer truncation problem due to oversized inputs to the

2026-05-09 12:41:23 +00:00

anycollseq.c

…

appendvfs.c

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base64.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

base85.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

basexx.c

Fix compilation issue seen with MSVC.

2023-05-13 05:13:29 +00:00

blobio.c

…

btreeinfo.c

Fix an infinite loop that can occur in the unused, untested, and

2026-05-28 11:16:55 +00:00

cksumvfs.c

In cksumvfs, do not write checksums to the wal file, as this prevents recovery from working.

2025-08-13 18:37:41 +00:00

closure.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

completion.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

compress.c

Make the (unused, untested, and unsupported) ext/misc/compress.c routines

2026-06-03 10:55:08 +00:00

csv.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

dbdump.c

Convert the ShellText object in the CLI to use sqlite3_malloc64() rather than

2025-09-25 10:55:54 +00:00

decimal.c

Fix an off-by-one buffer size calculation in the decimal.c extension.

2026-04-21 16:07:15 +00:00

diskused.c

Harden the diskused.c extension against NULL pointer deferences that

2026-05-30 10:24:03 +00:00

eval.c

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explain.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

fileio.c

Fix the fileio extension for Windows builds so that it does not depend on

2026-04-20 10:28:19 +00:00

fossildelta.c

Security enhancements to the untested and unused fossildelta.c extension.

2026-05-19 11:15:33 +00:00

fuzzer.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

ieee754.c

Add new functions ieee754_to_int() and ieee754_from_int() to the

2026-02-20 14:20:33 +00:00

memstat.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

memtrace.c

…

mmapwarm.c

Fix harmless compiler warnings.

2023-10-25 19:06:23 +00:00

nextchar.c

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noop.c

When doing a text-affinity comparison between two values where one or both

2024-01-20 15:13:13 +00:00

normalize.c

Enhance the tokenizer so that it is able to deal with individual tokens

2025-10-24 13:18:31 +00:00

pcachetrace.c

Add the --pcachetrace option to the CLI.

2023-06-21 14:11:25 +00:00

percentile.c

Use tail recursion on the larger of the two partitions when doing a

2026-06-03 16:21:17 +00:00

prefixes.c

The prefix_length() function should stop at the first NUL terminator.

2026-06-03 11:07:47 +00:00

qpvtab.c

Fix negative array index in "testing and debugging uses only" extension

2026-06-03 12:43:50 +00:00

randomjson.c

Fix harmless compiler warning in the randomjson.c extension.

2023-12-19 15:06:40 +00:00

README.md

Were we to choose to integrate the carray() table-valued function into the

2025-10-08 15:32:55 +00:00

regexp.c

Improved detection of OOM in the regexp_bytecode() SQLite function

2026-05-09 13:16:18 +00:00

remember.c

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rot13.c

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series.c

Fix a corner-case floating-point rounding problem in the generate_series()

2026-05-09 12:03:14 +00:00

sha1.c

Attempt to disable false-positive GCC compiler warning.

2026-05-12 11:47:01 +00:00

shathree.c

Approximately 100 typo corrections spanning the whole tree, submitted via [forum:0db9827f0464bc33|forum post 0db9827f0464bc33] and individually audited and verified. Affects only code comments, innocuous test strings, error message text in tool (not library) code, and configure-level help text.

2025-02-27 21:17:55 +00:00

showauth.c

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spellfix.c

Extra defenses against integer overflows in the untested, unused, and

2026-06-01 10:53:28 +00:00

sqlar.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

sqlite3_stdio.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

sqlite3_stdio.h

Move the ".output" command into a separate subroutine. Enhance .output so

2025-11-11 14:08:50 +00:00

stmt.c

Ensure that all fields of static sqlite3_module objects are explicitly

2023-10-06 12:51:05 +00:00

stmtrand.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

templatevtab.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

tmstmpvfs.c

Minor fixes to tmstmpvfs.c.

2026-02-17 14:28:18 +00:00

totype.c

Approximately 50 typo fixes, spanning the whole tree, contributed via [forum:006c8fa165083ac3|forum post 006c8fa165083ac3] and individually checked for correctness. Affects only code comments, docs, and a single line of debug output in a test app.

2025-02-25 20:55:14 +00:00

uint.c

2025-02-27 21:17:55 +00:00

unionvtab.c

Ensure that all fields of static sqlite3_module objects are explicitly

2023-10-06 12:51:05 +00:00

urifuncs.c

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uuid.c

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vfslog.c

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vfsstat.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

vfstrace.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

vtablog.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

vtshim.c

Always use sqlite3_malloc64() in extensions, where possible.

2026-04-01 16:56:48 +00:00

wholenumber.c

Clearly mark the ext/misc/wholenumber.c extension as "testing and

2026-06-04 11:18:11 +00:00

windirent.h

Remove the clunky test_windirent.h and test_windirent.c files from src/

2025-06-05 20:12:41 +00:00

zipfile.c

Fix a potential UAF bug in the zipfile extension.

2026-06-03 13:12:20 +00:00

zorder.c

Add bounds checking and error messages and improved comments

2025-08-05 10:54:56 +00:00

README.md

Miscellaneous Extensions

This folder contains a collection of smaller loadable extensions. See https://sqlite.org/loadext.html for instructions on how to compile and use loadable extensions. Each extension in this folder is implemented in a single file of C code.

Each source file contains a description in its header comment. See the header comments for details about each extension. Additional notes are as follows:

csv.c — A virtual table for reading Comma-Separated-Value (CSV) files.
dbdump.c — This is not actually a loadable extension, but rather a library that implements an approximate equivalent to the ".dump" command of the command-line shell.
json1.c — Various SQL functions and table-valued functions for processing JSON. This extension is already built into the SQLite amalgamation. See https://sqlite.org/json1.html for additional information.
rot13.c — This file implements the very simple rot13() substitution function. This file makes a good template for implementing new custom SQL functions for SQLite.
series.c — This is an implementation of the "generate_series" virtual table. It can make a good template for new custom virtual table implementations.
shathree.c — An implementation of the sha3() and sha3_query() SQL functions. The file is named "shathree.c" instead of "sha3.c" because the default entry point names in SQLite are based on the source filename with digits removed, so if we used the name "sha3.c" then the entry point would conflict with the prior "sha1.c" extension.
unionvtab.c — Implementation of the unionvtab and swarmvtab virtual tables. These virtual tables allow a single large table to be spread out across multiple database files. In the case of swarmvtab, the individual database files can be attached on demand.
zipfile.c — A virtual table that can read and write a ZIP archive.