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/* MIT License
*
* Copyright (c) 2009 Daniel Stenberg
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* SPDX-License-Identifier: MIT
*/
#ifndef __ARES_DATA_H
#define __ARES_DATA_H
typedef enum {
ARES_DATATYPE_UNKNOWN = 1, /* unknown data type - introduced in 1.7.0 */
ARES_DATATYPE_SRV_REPLY, /* struct ares_srv_reply - introduced in 1.7.0 */
ARES_DATATYPE_TXT_REPLY, /* struct ares_txt_reply - introduced in 1.7.0 */
ARES_DATATYPE_TXT_EXT, /* struct ares_txt_ext - introduced in 1.11.0 */
ARES_DATATYPE_ADDR_NODE, /* struct ares_addr_node - introduced in 1.7.1 */
ARES_DATATYPE_MX_REPLY, /* struct ares_mx_reply - introduced in 1.7.2 */
ARES_DATATYPE_NAPTR_REPLY, /* struct ares_naptr_reply - introduced in 1.7.6 */
ARES_DATATYPE_SOA_REPLY, /* struct ares_soa_reply - introduced in 1.9.0 */
ARES_DATATYPE_URI_REPLY, /* struct ares_uri_reply */
#if 0
ARES_DATATYPE_ADDR6TTL, /* struct ares_addrttl */
ARES_DATATYPE_ADDRTTL, /* struct ares_addr6ttl */
ARES_DATATYPE_HOSTENT, /* struct hostent */
ARES_DATATYPE_OPTIONS, /* struct ares_options */
#endif
ARES_DATATYPE_ADDR_PORT_NODE, /* struct ares_addr_port_node - introduced
in 1.11.0 */
ARES_DATATYPE_CAA_REPLY, /* struct ares_caa_reply - introduced in 1.17 */
ARES_DATATYPE_LAST /* not used - introduced in 1.7.0 */
} ares_datatype;
#define ARES_DATATYPE_MARK 0xbead
/*
* ares_data struct definition is internal to c-ares and shall not
* be exposed by the public API in order to allow future changes
* and extensions to it without breaking ABI. This will be used
* internally by c-ares as the container of multiple types of data
* dynamically allocated for which a reference will be returned
* to the calling application.
*
* c-ares API functions returning a pointer to c-ares internally
* allocated data will actually be returning an interior pointer
* into this ares_data struct.
*
* All this is 'invisible' to the calling application, the only
* requirement is that this kind of data must be free'ed by the
* calling application using ares_free_data() with the pointer
* it has received from a previous c-ares function call.
*/
struct ares_data {
ares_datatype type; /* Actual data type identifier. */
unsigned int mark; /* Private ares_data signature. */
union {
struct ares_txt_reply txt_reply;
struct ares_txt_ext txt_ext;
struct ares_srv_reply srv_reply;
struct ares_addr_node addr_node;
struct ares_addr_port_node addr_port_node;
struct ares_mx_reply mx_reply;
struct ares_naptr_reply naptr_reply;
struct ares_soa_reply soa_reply;
struct ares_caa_reply caa_reply;
struct ares_uri_reply uri_reply;
} data;
};
void *ares_malloc_data(ares_datatype type);
#endif /* __ARES_DATA_H */
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