tests: nonblocking keyboard-interactive

tests/client/torture_auth.c

@@ -147,6 +147,60 @@ static void torture_auth_kbdint(void **state) {
     assert_true(rc == SSH_AUTH_SUCCESS);
 }
 
+static void torture_auth_kbdint_nonblocking(void **state) {
+    ssh_session session = *state;
+    char *user = getenv("TORTURE_USER");
+    char *password = getenv("TORTURE_PASSWORD");
+    int rc;
+
+    if (user == NULL) {
+        print_message("*** Please set the environment variable TORTURE_USER"
+                      " to enable this test!!\n");
+        return;
+    }
+
+    if (password == NULL) {
+        print_message("*** Please set the environment variable "
+                      "TORTURE_PASSWORD to enable this test!!\n");
+        return;
+    }
+
+    rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
+    assert_true(rc == SSH_OK);
+
+    rc = ssh_connect(session);
+    assert_true(rc == SSH_OK);
+
+    rc = ssh_userauth_none(session,NULL);
+    /* This request should return a SSH_REQUEST_DENIED error */
+    if (rc == SSH_ERROR) {
+        assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
+    }
+    assert_true(ssh_auth_list(session) & SSH_AUTH_METHOD_INTERACTIVE);
+    ssh_set_blocking(session,0);
+    do {
+        rc = ssh_userauth_kbdint(session, NULL, NULL);
+    } while (rc == SSH_AUTH_AGAIN);
+    assert_true(rc == SSH_AUTH_INFO);
+    assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 1);
+    do {
+        rc = ssh_userauth_kbdint_setanswer(session, 0, password);
+    } while (rc == SSH_AUTH_AGAIN);
+    assert_false(rc < 0);
+
+    do {
+        rc = ssh_userauth_kbdint(session, NULL, NULL);
+    } while (rc == SSH_AUTH_AGAIN);
+    /* Sometimes, SSH server send an empty query at the end of exchange */
+    if(rc == SSH_AUTH_INFO) {
+        assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 0);
+        do {
+            rc = ssh_userauth_kbdint(session, NULL, NULL);
+        } while (rc == SSH_AUTH_AGAIN);
+    }
+    assert_true(rc == SSH_AUTH_SUCCESS);
+}
+
 static void torture_auth_password(void **state) {
     ssh_session session = *state;
     char *user = getenv("TORTURE_USER");
@@ -286,6 +340,7 @@ int torture_run_tests(void) {
     int rc;
     const UnitTest tests[] = {
         unit_test_setup_teardown(torture_auth_kbdint, setup, teardown),
+        unit_test_setup_teardown(torture_auth_kbdint_nonblocking, setup, teardown),
         unit_test_setup_teardown(torture_auth_password, setup, teardown),
         unit_test_setup_teardown(torture_auth_password_nonblocking, setup, teardown),
         unit_test_setup_teardown(torture_auth_autopubkey, setup, teardown),