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From: Junio C Hamano <gitster@pobox.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git@vger.kernel.org, "Derrick Stolee" <derrickstolee@github.com>,
	"Jeff King" <peff@peff.net>, "Taylor Blau" <me@ttaylorr.com>,
	"SZEDER Gábor" <szeder.dev@gmail.com>
Subject: Re: [PATCH 09/10] config API: add "string" version of *_value_multi(), fix segfaults
Date: Thu, 27 Oct 2022 12:52:06 -0700	[thread overview]
Message-ID: <xmqqzgdhjb89.fsf@gitster.g> (raw)
In-Reply-To: <xmqq4jvpkpxd.fsf@gitster.g> (Junio C. Hamano's message of "Thu, 27 Oct 2022 12:49:18 -0700")

Junio C Hamano <gitster@pobox.com> writes:

> Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:
>
>> Fix numerous and mostly long-standing segfaults in consumers of
>> the *_config_*value_multi() API. As discussed in the preceding commit
>> an empty key in the config syntax yields a "NULL" string, which these
>> users would give to strcmp() (or similar), resulting in segfaults.
>
> Sounds like a good idea.
>
> I would have called them _nonbool(), not _string(), especially
> because we are not going to have other variants like _int(), though.

Actually, I take it back.  Instead of introducing _string(), how
about introducing _bool() and convert those minority callers that do
want to see boolean values to use the new one, while rejecting NULLs
for everybody else that calls the traditional "get_value" family of
functions?  That would "optimize" for the majority of simpler users,
wouldn't it?


  reply	other threads:[~2022-10-27 19:52 UTC|newest]

Thread overview: 134+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-26 15:35 [PATCH 00/10] config API: make "multi" safe, fix numerous segfaults Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 01/10] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2022-10-26 18:49   ` SZEDER Gábor
2022-10-26 19:33     ` Ævar Arnfjörð Bjarmason
2022-10-27 19:27   ` Junio C Hamano
2022-10-26 15:35 ` [PATCH 02/10] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 03/10] config API: mark *_multi() with RESULT_MUST_BE_USED Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 04/10] string-list API: mark "struct_string_list" to "for_each_string_list" const Ævar Arnfjörð Bjarmason
2022-10-27 19:32   ` Junio C Hamano
2022-10-27 23:04     ` Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 05/10] string-list API: make has_string() and list_lookup() "const" Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 06/10] builtin/gc.c: use "unsorted_string_list_has_string()" where appropriate Ævar Arnfjörð Bjarmason
2022-10-27 19:37   ` Junio C Hamano
2022-10-27 23:25     ` Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 07/10] config API: add and use "lookup_value" functions Ævar Arnfjörð Bjarmason
2022-10-27 19:42   ` Junio C Hamano
2022-10-26 15:35 ` [PATCH 08/10] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2022-10-27 19:43   ` Junio C Hamano
2022-10-26 15:35 ` [PATCH 09/10] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2022-10-27 19:49   ` Junio C Hamano
2022-10-27 19:52     ` Junio C Hamano [this message]
2022-10-27 23:44       ` Ævar Arnfjörð Bjarmason
2022-10-28 19:16         ` Junio C Hamano
2022-10-31 18:22           ` Ævar Arnfjörð Bjarmason
2022-10-26 15:35 ` [PATCH 10/10] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2022-10-27 20:12 ` [PATCH 00/10] config API: make "multi" safe, fix numerous segfaults Junio C Hamano
2022-11-01 23:05 ` [PATCH v2 0/9] " Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 1/9] for-each-repo tests: test bad --config keys Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 2/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 3/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2022-11-01 23:05   ` [PATCH v2 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2022-11-02  0:49   ` [PATCH v2 0/9] config API: make "multi" safe, fix numerous segfaults Taylor Blau
2022-11-25  9:50   ` [PATCH v3 " Ævar Arnfjörð Bjarmason
2022-11-25  9:50     ` [PATCH v3 1/9] for-each-repo tests: test bad --config keys Ævar Arnfjörð Bjarmason
2022-11-25  9:50     ` [PATCH v3 2/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-01-19  0:15       ` Glen Choo
2022-11-25  9:50     ` [PATCH v3 3/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-01-19  0:28       ` Glen Choo
2022-11-25  9:50     ` [PATCH v3 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2022-11-25  9:50     ` [PATCH v3 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-01-19  0:50       ` Glen Choo
2022-11-25  9:50     ` [PATCH v3 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2022-11-25  9:50     ` [PATCH v3 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-01-19  0:51       ` Glen Choo
2022-11-25  9:50     ` [PATCH v3 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-01-19  1:03       ` Glen Choo
2022-11-25  9:50     ` [PATCH v3 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-01-19  0:10     ` [PATCH v3 0/9] config API: make "multi" safe, fix numerous segfaults Glen Choo
2023-02-02 13:27     ` [PATCH v4 " Ævar Arnfjörð Bjarmason
2023-02-02 13:27       ` [PATCH v4 1/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-02-03  1:22         ` Junio C Hamano
2023-02-06  8:31         ` Glen Choo
2023-02-02 13:27       ` [PATCH v4 2/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-02-02 23:12         ` Junio C Hamano
2023-02-06 10:40         ` Glen Choo
2023-02-06 12:31           ` Ævar Arnfjörð Bjarmason
2023-02-06 16:23             ` Glen Choo
2023-02-02 13:27       ` [PATCH v4 3/9] config API: add and use a "git_config_get()" family of functions Ævar Arnfjörð Bjarmason
2023-02-02 23:56         ` Junio C Hamano
2023-02-07 10:29           ` Ævar Arnfjörð Bjarmason
2023-02-06 12:36         ` Glen Choo
2023-02-06 12:37         ` Glen Choo
2023-02-07 11:52           ` Ævar Arnfjörð Bjarmason
2023-02-02 13:27       ` [PATCH v4 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2023-02-03 21:52         ` Junio C Hamano
2023-02-02 13:27       ` [PATCH v4 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-02-02 13:27       ` [PATCH v4 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2023-02-06 12:56         ` Glen Choo
2023-02-02 13:27       ` [PATCH v4 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-02-02 13:27       ` [PATCH v4 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-02-06 13:04         ` Glen Choo
2023-02-02 13:27       ` [PATCH v4 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-02-07 16:10       ` [PATCH v5 00/10] config API: make "multi" safe, fix segfaults, propagate "ret" Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 01/10] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 02/10] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-02-09  4:00           ` Glen Choo
2023-02-07 16:10         ` [PATCH v5 03/10] config API: add and use a "git_config_get()" family of functions Ævar Arnfjörð Bjarmason
2023-02-09  8:24           ` Glen Choo
2023-02-09 10:11             ` Ævar Arnfjörð Bjarmason
2023-02-09 10:59               ` Ævar Arnfjörð Bjarmason
2023-02-09 16:53                 ` Glen Choo
2023-02-07 16:10         ` [PATCH v5 04/10] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 05/10] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 06/10] config API: don't lose the git_*get*() return values Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 07/10] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 08/10] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 09/10] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-02-07 16:10         ` [PATCH v5 10/10] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-02-07 17:38         ` [PATCH v5 00/10] config API: make "multi" safe, fix segfaults, propagate "ret" Junio C Hamano
2023-03-07 18:09         ` [PATCH v6 0/9] " Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 1/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 2/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 3/9] config API: add and use a "git_config_get()" family of functions Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-03-07 18:09           ` [PATCH v6 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-03-08  0:48           ` [PATCH v6 0/9] config API: make "multi" safe, fix segfaults, propagate "ret" Glen Choo
2023-03-08  9:06           ` [PATCH v7 " Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 1/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 2/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 3/9] config API: add and use a "git_config_get()" family of functions Ævar Arnfjörð Bjarmason
2023-03-09 18:53               ` Glen Choo
2023-03-14 11:21                 ` Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-03-09 19:01               ` Glen Choo
2023-03-08  9:06             ` [PATCH v7 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-03-08  9:06             ` [PATCH v7 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-03-09 19:08             ` [PATCH v7 0/9] config API: make "multi" safe, fix segfaults, propagate "ret" Glen Choo
2023-03-09 20:46               ` Junio C Hamano
2023-03-28 14:04             ` [PATCH v8 " Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 1/9] config tests: cover blind spots in git_die_config() tests Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 2/9] config tests: add "NULL" tests for *_get_value_multi() Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 3/9] config API: add and use a "git_config_get()" family of functions Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 4/9] versioncmp.c: refactor config reading next commit Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 5/9] config API: have *_multi() return an "int" and take a "dest" Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 6/9] for-each-repo: error on bad --config Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 7/9] config API users: test for *_get_value_multi() segfaults Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 8/9] config API: add "string" version of *_value_multi(), fix segfaults Ævar Arnfjörð Bjarmason
2023-03-28 14:04               ` [PATCH v8 9/9] for-each-repo: with bad config, don't conflate <path> and <cmd> Ævar Arnfjörð Bjarmason
2023-04-07 15:51                 ` SZEDER Gábor
2023-03-28 16:58               ` [PATCH v8 0/9] config API: make "multi" safe, fix segfaults, propagate "ret" Glen Choo
2023-03-28 17:02                 ` Junio C Hamano
2023-03-29 22:17               ` Junio C Hamano

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