mirror of https://github.com/getdnsapi/getdns.git
93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/**
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*
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* \file hostname.c
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* @brief getdns core functions
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*
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* Originally taken from the getdns API description pseudo implementation.
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*
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*/
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/*
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* Copyright (c) 2013, Versign, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Verisign, Inc. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <getdns/getdns.h>
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#include "context.h"
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#include "general.h"
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#include "util-internal.h"
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#include "types-internal.h"
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#include <string.h>
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/* stuff to make it compile pedantically */
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#define UNUSED_PARAM(x) ((void)(x))
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/*
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* getdns_hostname
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*
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*/
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getdns_return_t
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getdns_hostname(struct getdns_context *context,
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struct getdns_dict * address,
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struct getdns_dict * extensions,
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void *userarg,
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getdns_transaction_t * transaction_id, getdns_callback_t callback)
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{
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struct getdns_bindata *address_data;
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struct getdns_bindata *address_type;
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uint16_t req_type;
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char *name;
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getdns_return_t retval;
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if ((retval =
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getdns_dict_get_bindata(address, "address_data",
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&address_data)) != GETDNS_RETURN_GOOD)
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return retval;
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if ((retval =
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getdns_dict_get_bindata(address, "address_type",
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&address_type)) != GETDNS_RETURN_GOOD)
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return retval;
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if ((strncmp(GETDNS_STR_IPV4, (char *) address_type->data,
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( strlen(GETDNS_STR_IPV4) < address_type->size
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? strlen(GETDNS_STR_IPV4) : address_type->size )) == 0
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&& address_data->size == 4)
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|| (strncmp(GETDNS_STR_IPV6, (char *) address_type->data,
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( strlen(GETDNS_STR_IPV6) < address_type->size
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? strlen(GETDNS_STR_IPV6) : address_type->size )) == 0
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&& address_data->size == 16))
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req_type = GETDNS_RRTYPE_PTR;
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else
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return GETDNS_RETURN_INVALID_PARAMETER;
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if ((name = reverse_address(address_data)) == NULL)
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return GETDNS_RETURN_INVALID_PARAMETER;
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retval = getdns_general(context, name, req_type, extensions,
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userarg, transaction_id, callback);
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free(name);
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return retval;
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} /* getdns_hostname */
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/* hostname.c */
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