During refactoring for 0.32, the code that set notmuch=NULL on various
errors was moved into _finish_open. This meant that the the code which
relied on that to set *database to NULL on error was no longer
correct. It also introduced a potential double free, since the notmuch
struct was deallocated inside _finish_open (via n_d_destroy).
In this commit we revert to "allocator frees", and leave any cleanup
to the caller of _finish_open. This allows us to get back the
behaviour of setting *database to NULL with a small change. Other
callers of _finish_open will need free notmuch on errors.
---
lib/open.cc | 13 +++++--------
test/T590-libconfig.sh | 2 --
2 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/lib/open.cc b/lib/open.cc
index 8a835e98..77f01f72 100644
--- a/lib/open.cc
+++ b/lib/open.cc
@@ -396,8 +396,6 @@ _finish_open (notmuch_database_t *notmuch,
" has a newer database format version (%u) than supported by this\n"
" version of notmuch (%u).\n",
database_path, version, NOTMUCH_DATABASE_VERSION));
- notmuch_database_destroy (notmuch);
- notmuch = NULL;
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
@@ -414,8 +412,6 @@ _finish_open (notmuch_database_t *notmuch,
" requires features (%s)\n"
" not supported by this version of notmuch.\n",
database_path, incompat_features));
- notmuch_database_destroy (notmuch);
- notmuch = NULL;
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
@@ -489,8 +485,6 @@ _finish_open (notmuch_database_t *notmuch,
} catch (const Xapian::Error &error) {
IGNORE_RESULT (asprintf (&message, "A Xapian exception occurred opening database: %s\n",
error.get_msg ().c_str ()));
- notmuch_database_destroy (notmuch);
- notmuch = NULL;
status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
DONE:
@@ -559,10 +553,13 @@ notmuch_database_open_with_config (const char *database_path,
free (message);
}
+ if (status && notmuch) {
+ notmuch_database_destroy (notmuch);
+ notmuch = NULL;
+ }
+
if (database)
*database = notmuch;
- else
- talloc_free (notmuch);
if (notmuch)
notmuch->open = true;
diff --git a/test/T590-libconfig.sh b/test/T590-libconfig.sh
index d2ea4a2b..ca70642c 100755
--- a/test/T590-libconfig.sh
+++ b/test/T590-libconfig.sh
@@ -850,7 +850,6 @@ EOF
test_expect_equal_file EXPECTED OUTPUT
test_begin_subtest "open: database set to null on missing config"
-test_subtest_known_broken
test_C ${MAIL_DIR} "/nonexistent" <<EOF
#include <notmuch-test.h>
int main (int argc, char **argv) {
@@ -871,7 +870,6 @@ EOF
test_expect_equal_file EXPECTED OUTPUT
test_begin_subtest "open: database set to null on missing config (env)"
-test_subtest_known_broken
old_NOTMUCH_CONFIG=${NOTMUCH_CONFIG}
NOTMUCH_CONFIG="/nonexistent"
test_C ${MAIL_DIR} <<EOF
--
2.33.0
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