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config: don't allow passing NULL as a value to set

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Passing NULL is non-sensical. The error message leaves to be desired,
though, as it leaks internal implementation details. Catch it at the
`git_config_set_string` level and set an appropriate error message.
This commit is contained in:
Carlos Martín Nieto 2013-03-08 02:11:34 +01:00
parent 92ebbe99c9
commit 48bde2f1b6
3 changed files with 21 additions and 2 deletions
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5
src/config.c
View File

@ -362,6 +362,11 @@ int git_config_set_string(git_config *cfg, const char *name, const char *value)
git_config_backend *file;
file_internal *internal;
if (!value) {
giterr_set(GITERR_CONFIG, "The value to set cannot be NULL");
return -1;
}
internal = git_vector_get(&cfg->files, 0);
file = internal->file;

14
tests-clar/config/write.c
View File

@ -228,3 +228,17 @@ void test_config_write__add_value_at_file_with_no_clrf_at_the_end(void)
git_config_free(cfg);
}
void test_config_write__can_set_a_value_to_NULL(void)
{
git_repository *repository;
git_config *config;
repository = cl_git_sandbox_init("testrepo.git");
cl_git_pass(git_repository_config(&config, repository));
cl_git_fail(git_config_set_string(config, "a.b.c", NULL));
git_config_free(config);
cl_git_sandbox_cleanup();
}

4
tests-clar/online/fetchhead.c
View File

@ -79,8 +79,8 @@ void test_online_fetchhead__no_merges(void)
fetchhead_test_clone();
cl_git_pass(git_repository_config(&config, g_repo));
cl_git_pass(git_config_set_string(config, "branch.master.remote", NULL));
cl_git_pass(git_config_set_string(config, "branch.master.merge", NULL));
cl_git_pass(git_config_delete_entry(config, "branch.master.remote"));
cl_git_pass(git_config_delete_entry(config, "branch.master.merge"));
git_config_free(config);
fetchhead_test_fetch(NULL, FETCH_HEAD_NO_MERGE_DATA);