79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* Copyright (C) 2003 Michael Richardson
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* Contributed by Michael Richardson <[email protected]> while working
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* on the Linux FreeS/WAN project in 2003.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: async.h,v 1.1 2004/03/15 20:35:25 as Exp $ */
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#ifndef LWRES_ASYNC_H
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#define LWRES_ASYNC_H 1
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#include <lwres/lwres.h>
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/*
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* support for asynchronous requests to lwres port
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*/
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struct lwres_async_state {
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struct lwres_async_state *next;
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lwres_buffer_t b_in, b_out;
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lwres_uint32_t serial;
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int opcode;
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int (*callback)(void *uctx, struct rrsetinfo *res);
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void *uctx;
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};
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/*
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* The calls for asynchronous requests.
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*/
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int lwres_async_init(lwres_context_t **pctx);
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int lwres_getrrsetbyname_init(const char *hostname, unsigned int rdclass,
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unsigned int rdtype, unsigned int flags,
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lwres_context_t *ctx,
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struct lwres_async_state *las);
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int lwres_getrrsetbyname_xmit(lwres_context_t *ctx,
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struct lwres_async_state *las);
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unsigned long lwres_async_timeout(lwres_context_t *ctx);
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int lwres_async_fd(lwres_context_t *ctx);
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int lwres_getrrsetbyname_read(struct lwres_async_state **plas,
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lwres_context_t *ctx,
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struct rrsetinfo **res);
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int lwres_getrrsetbyname_async(const char *hostname, unsigned int rdclass,
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unsigned int rdtype, unsigned int flags,
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struct rrsetinfo **res);
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#endif /* LWRES_ASYNC_H */
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