context_p.h revision ab023a65562e62b85a824509d829b6fad87e00b1
/*
* Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: context_p.h,v 1.14 2005/04/27 04:57:29 sra Exp $ */
#ifndef LWRES_CONTEXT_P_H
#define LWRES_CONTEXT_P_H 1
/*! \file */
/*@{*/
/**
* Helper functions, assuming the context is always called "ctx" in
* the scope these functions are called from.
*/
#define CTXMALLOC(len) ctx->malloc(ctx->arg, (len))
#define CTXFREE(addr, len) ctx->free(ctx->arg, (addr), (len))
/*@}*/
#define LWRES_DEFAULT_TIMEOUT 120 /* 120 seconds for a reply */
/**
* Not all the attributes here are actually settable by the application at
* this time.
*/
struct lwres_context {
unsigned int timeout; /*%< time to wait for reply */
lwres_uint32_t serial; /*%< serial number state */
/*
* For network I/O.
*/
int sock; /*%< socket to send on */
lwres_addr_t address; /*%< address to send to */
/*@{*/
/*
* Function pointers for allocating memory.
*/
lwres_malloc_t malloc;
lwres_free_t free;
void *arg;
/*@}*/
/*%
* resolv.conf-like data
*/
lwres_conf_t confdata;
};
#endif /* LWRES_CONTEXT_P_H */