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| author | Markus Armbruster <armbru@redhat.com> | 2015-10-15 16:15:35 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2015-10-29 14:34:45 +0100 |
| commit | fcf73f66a67f5e58c18216f8c8651e38cf4d90af (patch) | |
| tree | ea430e78cc556fb332a9f3ec1c520e4d602700f3 /qapi | |
| parent | 89cad9f3ec6b30d7550fb5704475fc9c3393a066 (diff) | |
| download | qemu-fcf73f66a67f5e58c18216f8c8651e38cf4d90af.zip | |
qfloat qint: Make conversion from QObject * accept null
qobject_to_qfloat() and qobject_to_qint() crash 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: <1444918537-18107-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/qmp-input-visitor.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c index f32ce8109d..267783c998 100644 --- a/qapi/qmp-input-visitor.c +++ b/qapi/qmp-input-visitor.c @@ -225,15 +225,15 @@ static void qmp_input_type_int(Visitor *v, int64_t *obj, const char *name, Error **errp) { QmpInputVisitor *qiv = to_qiv(v); - QObject *qobj = qmp_input_get_object(qiv, name, true); + QInt *qint = qobject_to_qint(qmp_input_get_object(qiv, name, true)); - if (!qobj || qobject_type(qobj) != QTYPE_QINT) { + if (!qint) { error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null", "integer"); return; } - *obj = qint_get_int(qobject_to_qint(qobj)); + *obj = qint_get_int(qint); } static void qmp_input_type_bool(Visitor *v, bool *obj, const char *name, @@ -271,19 +271,23 @@ static void qmp_input_type_number(Visitor *v, double *obj, const char *name, { QmpInputVisitor *qiv = to_qiv(v); QObject *qobj = qmp_input_get_object(qiv, name, true); + QInt *qint; + QFloat *qfloat; - if (!qobj || (qobject_type(qobj) != QTYPE_QFLOAT && - qobject_type(qobj) != QTYPE_QINT)) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null", - "number"); + qint = qobject_to_qint(qobj); + if (qint) { + *obj = qint_get_int(qobject_to_qint(qobj)); return; } - if (qobject_type(qobj) == QTYPE_QINT) { - *obj = qint_get_int(qobject_to_qint(qobj)); - } else { + qfloat = qobject_to_qfloat(qobj); + if (qfloat) { *obj = qfloat_get_double(qobject_to_qfloat(qobj)); + return; } + + error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null", + "number"); } static void qmp_input_type_any(Visitor *v, QObject **obj, const char *name, |