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dns_client.c File Reference
Functions

dns_client.c File Reference

DNS client (Domain Name System) More...

Go to the source code of this file.

Functions

error_t dnsResolve (NetInterface *interface, const char_t *name, HostType type, IpAddr *ipAddr)
 Resolve a host name using DNS.
error_t dnsSendQuery (DnsCacheEntry *entry)
 Send a DNS query message.
void dnsProcessResponse (NetInterface *interface, const IpPseudoHeader *pseudoHeader, const UdpHeader *udpHeader, const NetBuffer *buffer, size_t offset, void *params)
 Process incoming DNS response message.

Detailed Description

DNS client (Domain Name System)

License

Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author:
Oryx Embedded SARL (www.oryx-embedded.com)
Version:
1.7.6

Definition in file dns_client.c.

Function Documentation

void dnsProcessResponse ( NetInterface *  interface,
const IpPseudoHeader *  pseudoHeader,
const UdpHeader *  udpHeader,
const NetBuffer *  buffer,
size_t  offset,
void *  params 
)

Process incoming DNS response message.

Parameters:
[in]interfaceUnderlying network interface
[in]pseudoHeaderUDP pseudo header
[in]udpHeaderUDP header
[in]bufferMulti-part buffer containing the incoming DNS message
[in]offsetOffset to the first byte of the DNS message
[in]paramsCallback function parameter (not used)

Definition at line 357 of file dns_client.c.

error_t dnsResolve ( NetInterface *  interface,
const char_t *  name,
HostType  type,
IpAddr *  ipAddr 
)

Resolve a host name using DNS.

Parameters:
[in]interfaceUnderlying network interface
[in]nameName of the host to be resolved
[in]typeHost type (IPv4 or IPv6)
[out]ipAddrIP address corresponding to the specified host name

Definition at line 52 of file dns_client.c.

error_t dnsSendQuery ( DnsCacheEntry *  entry )

Send a DNS query message.

Parameters:
[in]entryPointer to a valid DNS cache entry
Returns:
Error code

Definition at line 213 of file dns_client.c.

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