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Annotation of embedaddon/strongswan/src/libstrongswan/networking/host_resolver.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2012 Tobias Brunner
        !             3:  * HSR Hochschule fuer Technik Rapperswil
        !             4:  *
        !             5:  * This program is free software; you can redistribute it and/or modify it
        !             6:  * under the terms of the GNU General Public License as published by the
        !             7:  * Free Software Foundation; either version 2 of the License, or (at your
        !             8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
        !             9:  *
        !            10:  * This program is distributed in the hope that it will be useful, but
        !            11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
        !            13:  * for more details.
        !            14:  */
        !            15: 
        !            16: /**
        !            17:  * @defgroup host_resolver host_resolver
        !            18:  * @{ @ingroup networking
        !            19:  */
        !            20: 
        !            21: #ifndef HOST_RESOLVER_H_
        !            22: #define HOST_RESOLVER_H_
        !            23: 
        !            24: #include "host.h"
        !            25: 
        !            26: typedef struct host_resolver_t host_resolver_t;
        !            27: 
        !            28: /**
        !            29:  * Resolve hosts by DNS name but do so in a separate thread (calling
        !            30:  * getaddrinfo(3) directly might block indefinitely, or at least a very long
        !            31:  * time if no DNS servers are reachable).
        !            32:  */
        !            33: struct host_resolver_t {
        !            34: 
        !            35:        /**
        !            36:         * Resolve host from the given DNS name.
        !            37:         *
        !            38:         * @param name          name to lookup
        !            39:         * @param family        requested address family
        !            40:         * @return                      resolved host or NULL if failed or canceled
        !            41:         */
        !            42:        host_t *(*resolve)(host_resolver_t *this, char *name, int family);
        !            43: 
        !            44:        /**
        !            45:         * Flush the queue of queries. No new queries will be accepted afterwards.
        !            46:         */
        !            47:        void (*flush)(host_resolver_t *this);
        !            48: 
        !            49:        /**
        !            50:         * Destroy a host_resolver_t.
        !            51:         */
        !            52:        void (*destroy)(host_resolver_t *this);
        !            53: };
        !            54: 
        !            55: /**
        !            56:  * Create a host_resolver_t instance.
        !            57:  */
        !            58: host_resolver_t *host_resolver_create();
        !            59: 
        !            60: #endif /** HOST_RESOLVER_H_ @}*/