diff options
| author | Markus Armbruster <armbru@redhat.com> | 2015-10-15 16:15:33 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2015-10-29 14:34:44 +0100 |
| commit | 14b6160099f0caf5dc9d62e637b007bc5d719a96 (patch) | |
| tree | 066a567ca6607ed9dbe3ceb8627eaa0e2426685a | |
| parent | c7c462123cfc3b62d325fd75be9c595b055797db (diff) | |
qbool: Make conversion from QObject * accept null
qobject_to_qbool() crashes on null, which is a trap for the unwary.
Return null instead, and simplify a few callers.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1444918537-18107-3-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
| -rw-r--r-- | qapi/qmp-input-visitor.c | 6 | ||||
| -rw-r--r-- | qobject/qbool.c | 4 | ||||
| -rw-r--r-- | qobject/qdict.c | 11 |
3 files changed, 8 insertions, 13 deletions
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c index 5dd9ed5ce5..f32ce8109d 100644 --- a/qapi/qmp-input-visitor.c +++ b/qapi/qmp-input-visitor.c @@ -240,15 +240,15 @@ static void qmp_input_type_bool(Visitor *v, bool *obj, const char *name, Error **errp) { QmpInputVisitor *qiv = to_qiv(v); - QObject *qobj = qmp_input_get_object(qiv, name, true); + QBool *qbool = qobject_to_qbool(qmp_input_get_object(qiv, name, true)); - if (!qobj || qobject_type(qobj) != QTYPE_QBOOL) { + if (!qbool) { error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null", "boolean"); return; } - *obj = qbool_get_bool(qobject_to_qbool(qobj)); + *obj = qbool_get_bool(qbool); } static void qmp_input_type_str(Visitor *v, char **obj, const char *name, diff --git a/qobject/qbool.c b/qobject/qbool.c index 5ff69f0b2d..bc6535fa49 100644 --- a/qobject/qbool.c +++ b/qobject/qbool.c @@ -51,9 +51,9 @@ bool qbool_get_bool(const QBool *qb) */ QBool *qobject_to_qbool(const QObject *obj) { - if (qobject_type(obj) != QTYPE_QBOOL) + if (!obj || qobject_type(obj) != QTYPE_QBOOL) { return NULL; - + } return container_of(obj, QBool, base); } diff --git a/qobject/qdict.c b/qobject/qdict.c index 67b1a58abf..f179f4e8ca 100644 --- a/qobject/qdict.c +++ b/qobject/qdict.c @@ -243,8 +243,7 @@ int64_t qdict_get_int(const QDict *qdict, const char *key) */ bool qdict_get_bool(const QDict *qdict, const char *key) { - QObject *obj = qdict_get_obj(qdict, key, QTYPE_QBOOL); - return qbool_get_bool(qobject_to_qbool(obj)); + return qbool_get_bool(qobject_to_qbool(qdict_get(qdict, key))); } /** @@ -316,13 +315,9 @@ int64_t qdict_get_try_int(const QDict *qdict, const char *key, */ bool qdict_get_try_bool(const QDict *qdict, const char *key, bool def_value) { - QObject *obj; - - obj = qdict_get(qdict, key); - if (!obj || qobject_type(obj) != QTYPE_QBOOL) - return def_value; + QBool *qbool = qobject_to_qbool(qdict_get(qdict, key)); - return qbool_get_bool(qobject_to_qbool(obj)); + return qbool ? qbool_get_bool(qbool) : def_value; } /** |