Commit f0ae0304 authored by Markus Armbruster's avatar Markus Armbruster
Browse files

check-qjson: Add test for JSON nesting depth limit 



This would have prevented the regression mentioned in the previous
commit.

Signed-off-by: default avatarMarkus Armbruster <armbru@redhat.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-4-git-send-email-armbru@redhat.com>
parent 0753113a

tests/check-qjson.c

+25 −0
Original line number Diff line number Diff line
@@ -1484,6 +1484,30 @@ static void unterminated_literal(void) 
    g_assert(obj == NULL);

}



static char *make_nest(char *buf, size_t cnt)

{

    memset(buf, '[', cnt - 1);

    buf[cnt - 1] = '{';

    buf[cnt] = '}';

    memset(buf + cnt + 1, ']', cnt - 1);

    buf[2 * cnt] = 0;

    return buf;

}



static void limits_nesting(void)

{

    enum { max_nesting = 1024 }; /* see qobject/json-streamer.c */

    char buf[2 * (max_nesting + 1) + 1];

    QObject *obj;



    obj = qobject_from_json(make_nest(buf, max_nesting));

    g_assert(obj != NULL);

    qobject_decref(obj);



    obj = qobject_from_json(make_nest(buf, max_nesting + 1));

    g_assert(obj == NULL);

}



int main(int argc, char **argv)

{

    g_test_init(&argc, &argv, NULL);
@@ -1519,6 +1543,7 @@ int main(int argc, char **argv) 
    g_test_add_func("/errors/invalid_array_comma", invalid_array_comma);

    g_test_add_func("/errors/invalid_dict_comma", invalid_dict_comma);

    g_test_add_func("/errors/unterminated/literal", unterminated_literal);

    g_test_add_func("/errors/limits/nesting", limits_nesting);



    return g_test_run();

}