diff options
Diffstat (limited to 'tests/lib/test_resolver.c')
-rw-r--r-- | tests/lib/test_resolver.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/tests/lib/test_resolver.c b/tests/lib/test_resolver.c new file mode 100644 index 0000000..6a582cc --- /dev/null +++ b/tests/lib/test_resolver.c @@ -0,0 +1,81 @@ +/* + * FRR c-ares integration test + * Copyright (C) 2021 David Lamparter for NetDEF, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* this test is not run automatically since tests MUST NOT rely on any outside + * state. DNS is most definitely "outside state". A testbed may not have any + * internet connectivity at all. It may not have working DNS. Or worst of + * all, whatever name we use to test may have a temporary failure entirely + * beyond our control. + * + * The only way this test could be run in a testbed is with an all-local DNS + * setup, which considering the resolver code is rarely touched is not worth + * the time at all. Instead, after touching the resolver code, manually run + * this test and throw some names at it. + */ + +#include <zebra.h> + +#include "vty.h" +#include "command.h" +#include "resolver.h" +#include "log.h" +#include "sockunion.h" + +#include "tests/lib/cli/common_cli.h" + +extern struct thread_master *master; + +static void resolver_result(struct resolver_query *resq, const char *errstr, + int numaddrs, union sockunion *addr) +{ + int i; + + if (numaddrs <= 0) { + zlog_warn("hostname resolution failed: %s", errstr); + return; + } + + for (i = 0; i < numaddrs; i++) + zlog_info("resolver result: %pSU", &addr[i]); +} + +struct resolver_query query; + +DEFUN (test_resolve, + test_resolve_cmd, + "resolve WORD", + "DNS resolver\n" + "Name to resolve\n") +{ + resolver_resolve(&query, AF_UNSPEC, 0, argv[1]->arg, resolver_result); + return CMD_SUCCESS; +} + +__attribute__((_CONSTRUCTOR(2000))) +static void test_setup(void) +{ + test_log_prio = LOG_DEBUG; +} + +void test_init(int argc, char **argv) +{ + resolver_init(master); + + install_element(VIEW_NODE, &test_resolve_cmd); +} |