--- /dev/null
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * Libmemcached library
+ *
+ * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2010 Brian Aker All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * The names of its contributors may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Summary: connects to a host, and makes sure it is alive.
+ *
+ */
+
+#include <libmemcachedutil/common.h>
+
+bool libmemcached_util_ping(const char *hostname, in_port_t port, memcached_return_t *ret)
+{
+ memcached_return_t unused;
+ if (not ret)
+ ret= &unused;
+
+ memcached_st *memc_ptr= memcached_create(NULL);
+ if (not memc_ptr)
+ {
+ *ret= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+ return false;
+ }
+
+ memcached_return_t rc= memcached_server_add(memc_ptr, hostname, port);
+ if (memcached_success(rc))
+ {
+ rc= memcached_version(memc_ptr);
+ }
+
+ if (memcached_failed(rc) and rc == MEMCACHED_SOME_ERRORS)
+ {
+ memcached_server_instance_st instance=
+ memcached_server_instance_by_position(memc_ptr, 0);
+
+ assert_msg(instance and instance->error_messages, " ");
+ if (instance and instance->error_messages)
+ {
+ rc= memcached_server_error_return(instance);
+ }
+ }
+ memcached_free(memc_ptr);
+
+ *ret= rc;
+
+ return memcached_success(rc);
+}
+
+bool libmemcached_util_ping2(const char *hostname, in_port_t port, const char *username, const char *password, memcached_return_t *ret)
+{
+ if (username == NULL)
+ {
+ return libmemcached_util_ping(hostname, port, ret);
+ }
+
+ memcached_return_t unused;
+ if (not ret)
+ ret= &unused;
+
+ if (LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
+ {
+ *ret= MEMCACHED_NOT_SUPPORTED;
+ return false;
+ }
+
+ memcached_st *memc_ptr= memcached_create(NULL);
+ if (not memc_ptr)
+ {
+ *ret= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+ return false;
+ }
+
+ if (memcached_failed(*ret= memcached_set_sasl_auth_data(memc_ptr, username, password)))
+ {
+ memcached_free(memc_ptr);
+ return false;
+ }
+
+ memcached_return_t rc= memcached_server_add(memc_ptr, hostname, port);
+ if (memcached_success(rc))
+ {
+ rc= memcached_version(memc_ptr);
+ }
+
+ if (memcached_failed(rc) and rc == MEMCACHED_SOME_ERRORS)
+ {
+ memcached_server_instance_st instance=
+ memcached_server_instance_by_position(memc_ptr, 0);
+
+ assert_msg(instance and instance->error_messages, " ");
+ if (instance and instance->error_messages)
+ {
+ rc= memcached_server_error_return(instance);
+ }
+ }
+ memcached_free(memc_ptr);
+
+ *ret= rc;
+
+ return memcached_success(rc);
+}