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+/*
+ * Copyright (C) 2004, 2005, 2007, 2008 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000, 2001 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or 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 1.19 2008/12/17 23:47:58 tbox 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 */
+ int use_ipv4; /*%< use IPv4 transaction */
+ int use_ipv6; /*%< use IPv6 transaction */
+
+ /*@{*/
+ /*
+ * 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 */
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