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| author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | 2022-09-01 02:18:12 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2022-09-02 19:16:24 +0300 |
| commit | 1e8697b5c4ed7c2762a0858251efa8feb8126038 (patch) | |
| tree | 28f0b911e068272f676656aa368f3d4d6ea7ff8f /repository.h | |
| parent | ac350155de34767e132b383fb1b819ff74e23842 (diff) | |
submodule--helper: check repo{_submodule,}_init() return values
Fix code added in ce125d431aa (submodule: extract path to submodule
gitdir func, 2021-09-15) and a77c3fcb5ec (submodule--helper: get
remote names from any repository, 2022-03-04) which failed to check
the return values of repo_init() and repo_submodule_init(). If we
failed to initialize the repository or submodule we could segfault
when trying to access the invalid repository structs.
Let's also check that these were the only such logic errors in the
codebase by making use of the "warn_unused_result" attribute. This is
valid as of GCC 3.4.0 (and clang will catch it via its faking of
__GNUC__ ).
As the comment being added to git-compat-util.h we're piggy-backing on
the LAST_ARG_MUST_BE_NULL version check out of lazyness. See
9fe3edc47f1 (Add the LAST_ARG_MUST_BE_NULL macro, 2013-07-18) for its
addition. The marginal benefit of covering gcc 3.4.0..4.0.0 is
near-zero (or zero) at this point. It mostly matters that we catch
this somewhere.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'repository.h')
| -rw-r--r-- | repository.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/repository.h b/repository.h index 6cc661e5a4..17c45ae096 100644 --- a/repository.h +++ b/repository.h @@ -1,6 +1,7 @@ #ifndef REPOSITORY_H #define REPOSITORY_H +#include "git-compat-util.h" #include "path.h" struct config_set; @@ -185,6 +186,7 @@ void repo_set_gitdir(struct repository *repo, const char *root, void repo_set_worktree(struct repository *repo, const char *path); void repo_set_hash_algo(struct repository *repo, int algo); void initialize_the_repository(void); +RESULT_MUST_BE_USED int repo_init(struct repository *r, const char *gitdir, const char *worktree); /* @@ -196,6 +198,7 @@ int repo_init(struct repository *r, const char *gitdir, const char *worktree); * Return 0 upon success and a non-zero value upon failure. */ struct object_id; +RESULT_MUST_BE_USED int repo_submodule_init(struct repository *subrepo, struct repository *superproject, const char *path, |