Rod Coleman / NetServices

Netservices modded to read fragmented HTTP respsonse/payload from special purpose server - 180 bytes only

api/DNSRequest.h@0:8f5825f330b0, 2011-09-08 (annotated)

Committer:
RodColeman
Date:
Thu Sep 08 10:41:36 2011 +0000
Revision:
0:8f5825f330b0
setDataLen hacked to 180bytes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:8f5825f330b0 1
RodColeman 0:8f5825f330b0 2 /*
RodColeman 0:8f5825f330b0 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
RodColeman 0:8f5825f330b0 4
RodColeman 0:8f5825f330b0 5 Permission is hereby granted, free of charge, to any person obtaining a copy
RodColeman 0:8f5825f330b0 6 of this software and associated documentation files (the "Software"), to deal
RodColeman 0:8f5825f330b0 7 in the Software without restriction, including without limitation the rights
RodColeman 0:8f5825f330b0 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
RodColeman 0:8f5825f330b0 9 copies of the Software, and to permit persons to whom the Software is
RodColeman 0:8f5825f330b0 10 furnished to do so, subject to the following conditions:
RodColeman 0:8f5825f330b0 11
RodColeman 0:8f5825f330b0 12 The above copyright notice and this permission notice shall be included in
RodColeman 0:8f5825f330b0 13 all copies or substantial portions of the Software.
RodColeman 0:8f5825f330b0 14
RodColeman 0:8f5825f330b0 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
RodColeman 0:8f5825f330b0 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
RodColeman 0:8f5825f330b0 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
RodColeman 0:8f5825f330b0 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
RodColeman 0:8f5825f330b0 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
RodColeman 0:8f5825f330b0 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
RodColeman 0:8f5825f330b0 21 THE SOFTWARE.
RodColeman 0:8f5825f330b0 22 */
RodColeman 0:8f5825f330b0 23
RodColeman 0:8f5825f330b0 24 /** \file
RodColeman 0:8f5825f330b0 25 DNS Request header file
RodColeman 0:8f5825f330b0 26 */
RodColeman 0:8f5825f330b0 27
RodColeman 0:8f5825f330b0 28 #ifndef DNSREQUEST_H
RodColeman 0:8f5825f330b0 29 #define DNSREQUEST_H
RodColeman 0:8f5825f330b0 30
RodColeman 0:8f5825f330b0 31 #include "core/net.h"
RodColeman 0:8f5825f330b0 32 #include "core/ipaddr.h"
RodColeman 0:8f5825f330b0 33 #include "core/host.h"
RodColeman 0:8f5825f330b0 34 //Essentially it is a safe interface to NetDnsRequest
RodColeman 0:8f5825f330b0 35
RodColeman 0:8f5825f330b0 36 ///DNS Request error codes
RodColeman 0:8f5825f330b0 37 enum DNSRequestErr
RodColeman 0:8f5825f330b0 38 {
RodColeman 0:8f5825f330b0 39 __DNS_MIN = -0xFFFF,
RodColeman 0:8f5825f330b0 40 DNS_SETUP, ///<DNSRequest not properly configured
RodColeman 0:8f5825f330b0 41 DNS_IF, ///<Interface has problems, does not exist or is not initialized
RodColeman 0:8f5825f330b0 42 DNS_MEM, ///<Not enough mem
RodColeman 0:8f5825f330b0 43 DNS_INUSE, ///<Interface / Port is in use
RodColeman 0:8f5825f330b0 44 DNS_PROCESSING, ///<Request has not completed
RodColeman 0:8f5825f330b0 45 //...
RodColeman 0:8f5825f330b0 46 DNS_OK = 0 ///<Success
RodColeman 0:8f5825f330b0 47 };
RodColeman 0:8f5825f330b0 48
RodColeman 0:8f5825f330b0 49 ///DNS Request Result Events
RodColeman 0:8f5825f330b0 50 enum DNSReply
RodColeman 0:8f5825f330b0 51 {
RodColeman 0:8f5825f330b0 52 DNS_PRTCL,
RodColeman 0:8f5825f330b0 53 DNS_NOTFOUND, ///Hostname is unknown
RodColeman 0:8f5825f330b0 54 DNS_ERROR, ///Problem with DNS Service
RodColeman 0:8f5825f330b0 55 //...
RodColeman 0:8f5825f330b0 56 DNS_FOUND,
RodColeman 0:8f5825f330b0 57 };
RodColeman 0:8f5825f330b0 58
RodColeman 0:8f5825f330b0 59 class NetDnsRequest;
RodColeman 0:8f5825f330b0 60 enum NetDnsReply;
RodColeman 0:8f5825f330b0 61
RodColeman 0:8f5825f330b0 62 ///This is a simple DNS Request class
RodColeman 0:8f5825f330b0 63 /**
RodColeman 0:8f5825f330b0 64 This class exposes an API to deal with DNS Requests
RodColeman 0:8f5825f330b0 65 */
RodColeman 0:8f5825f330b0 66 class DNSRequest
RodColeman 0:8f5825f330b0 67 {
RodColeman 0:8f5825f330b0 68 public:
RodColeman 0:8f5825f330b0 69 ///Creates a new request
RodColeman 0:8f5825f330b0 70 DNSRequest();
RodColeman 0:8f5825f330b0 71
RodColeman 0:8f5825f330b0 72 ///Terminates and closes request
RodColeman 0:8f5825f330b0 73 ~DNSRequest();
RodColeman 0:8f5825f330b0 74
RodColeman 0:8f5825f330b0 75 ///Resolves an hostname
RodColeman 0:8f5825f330b0 76 /**
RodColeman 0:8f5825f330b0 77 @param hostname : hostname to resolve
RodColeman 0:8f5825f330b0 78 */
RodColeman 0:8f5825f330b0 79 DNSRequestErr resolve(const char* hostname);
RodColeman 0:8f5825f330b0 80
RodColeman 0:8f5825f330b0 81 ///Resolves an hostname
RodColeman 0:8f5825f330b0 82 /**
RodColeman 0:8f5825f330b0 83 @param host : hostname to resolve, the result will be stored in the IpAddr field of this object
RodColeman 0:8f5825f330b0 84 */
RodColeman 0:8f5825f330b0 85 DNSRequestErr resolve(Host* pHost);
RodColeman 0:8f5825f330b0 86
RodColeman 0:8f5825f330b0 87 ///Setups callback
RodColeman 0:8f5825f330b0 88 /**
RodColeman 0:8f5825f330b0 89 The callback function will be called on result.
RodColeman 0:8f5825f330b0 90 @param pMethod : callback function
RodColeman 0:8f5825f330b0 91 */
RodColeman 0:8f5825f330b0 92 void setOnReply( void (*pMethod)(DNSReply) );
RodColeman 0:8f5825f330b0 93
RodColeman 0:8f5825f330b0 94 class CDummy;
RodColeman 0:8f5825f330b0 95 ///Setups callback
RodColeman 0:8f5825f330b0 96 /**
RodColeman 0:8f5825f330b0 97 The callback function will be called on result.
RodColeman 0:8f5825f330b0 98 @param pItem : instance of class on which to execute the callback method
RodColeman 0:8f5825f330b0 99 @param pMethod : callback method
RodColeman 0:8f5825f330b0 100 */
RodColeman 0:8f5825f330b0 101 template<class T>
RodColeman 0:8f5825f330b0 102 void setOnReply( T* pItem, void (T::*pMethod)(DNSReply) )
RodColeman 0:8f5825f330b0 103 {
RodColeman 0:8f5825f330b0 104 m_pCbItem = (CDummy*) pItem;
RodColeman 0:8f5825f330b0 105 m_pCbMeth = (void (CDummy::*)(DNSReply)) pMethod;
RodColeman 0:8f5825f330b0 106 }
RodColeman 0:8f5825f330b0 107
RodColeman 0:8f5825f330b0 108 ///Gets IP address once it has been resolved
RodColeman 0:8f5825f330b0 109 /**
RodColeman 0:8f5825f330b0 110 @param pIp : pointer to an IpAddr instance in which to store the resolved IP address
RodColeman 0:8f5825f330b0 111 */
RodColeman 0:8f5825f330b0 112 DNSRequestErr getResult(IpAddr* pIp);
RodColeman 0:8f5825f330b0 113
RodColeman 0:8f5825f330b0 114 ///Closes DNS Request before completion
RodColeman 0:8f5825f330b0 115 DNSRequestErr close();
RodColeman 0:8f5825f330b0 116
RodColeman 0:8f5825f330b0 117 protected:
RodColeman 0:8f5825f330b0 118 void onNetDnsReply(NetDnsReply r);
RodColeman 0:8f5825f330b0 119 DNSRequestErr checkInst();
RodColeman 0:8f5825f330b0 120
RodColeman 0:8f5825f330b0 121 private:
RodColeman 0:8f5825f330b0 122 NetDnsRequest* m_pNetDnsRequest;
RodColeman 0:8f5825f330b0 123
RodColeman 0:8f5825f330b0 124 CDummy* m_pCbItem;
RodColeman 0:8f5825f330b0 125 void (CDummy::*m_pCbMeth)(DNSReply);
RodColeman 0:8f5825f330b0 126
RodColeman 0:8f5825f330b0 127 void (*m_pCb)(DNSReply);
RodColeman 0:8f5825f330b0 128
RodColeman 0:8f5825f330b0 129 };
RodColeman 0:8f5825f330b0 130
RodColeman 0:8f5825f330b0 131 #endif