Darran Shepherd
Net stack with AutoIP enabled
api/DNSRequest.cpp@0:ac21159e27f4, 2010-07-02 (annotated)
- Committer:
- darran
- Date:
- Fri Jul 02 17:21:58 2010 +0000
- Revision:
- 0:ac21159e27f4
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| darran | 0:ac21159e27f4 | 1 | |
| darran | 0:ac21159e27f4 | 2 | /* |
| darran | 0:ac21159e27f4 | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
| darran | 0:ac21159e27f4 | 4 | |
| darran | 0:ac21159e27f4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| darran | 0:ac21159e27f4 | 6 | of this software and associated documentation files (the "Software"), to deal |
| darran | 0:ac21159e27f4 | 7 | in the Software without restriction, including without limitation the rights |
| darran | 0:ac21159e27f4 | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| darran | 0:ac21159e27f4 | 9 | copies of the Software, and to permit persons to whom the Software is |
| darran | 0:ac21159e27f4 | 10 | furnished to do so, subject to the following conditions: |
| darran | 0:ac21159e27f4 | 11 | |
| darran | 0:ac21159e27f4 | 12 | The above copyright notice and this permission notice shall be included in |
| darran | 0:ac21159e27f4 | 13 | all copies or substantial portions of the Software. |
| darran | 0:ac21159e27f4 | 14 | |
| darran | 0:ac21159e27f4 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| darran | 0:ac21159e27f4 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| darran | 0:ac21159e27f4 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| darran | 0:ac21159e27f4 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| darran | 0:ac21159e27f4 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| darran | 0:ac21159e27f4 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| darran | 0:ac21159e27f4 | 21 | THE SOFTWARE. |
| darran | 0:ac21159e27f4 | 22 | */ |
| darran | 0:ac21159e27f4 | 23 | |
| darran | 0:ac21159e27f4 | 24 | #include "DNSRequest.h" |
| darran | 0:ac21159e27f4 | 25 | |
| darran | 0:ac21159e27f4 | 26 | DNSRequest::DNSRequest() : m_pNetDnsRequest(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL) |
| darran | 0:ac21159e27f4 | 27 | { |
| darran | 0:ac21159e27f4 | 28 | |
| darran | 0:ac21159e27f4 | 29 | } |
| darran | 0:ac21159e27f4 | 30 | |
| darran | 0:ac21159e27f4 | 31 | DNSRequest::~DNSRequest() |
| darran | 0:ac21159e27f4 | 32 | { |
| darran | 0:ac21159e27f4 | 33 | close(); |
| darran | 0:ac21159e27f4 | 34 | } |
| darran | 0:ac21159e27f4 | 35 | |
| darran | 0:ac21159e27f4 | 36 | DNSRequestErr DNSRequest::resolve(const char* hostname) |
| darran | 0:ac21159e27f4 | 37 | { |
| darran | 0:ac21159e27f4 | 38 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 39 | { |
| darran | 0:ac21159e27f4 | 40 | m_pNetDnsRequest = Net::dnsRequest(hostname); |
| darran | 0:ac21159e27f4 | 41 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 42 | { |
| darran | 0:ac21159e27f4 | 43 | return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist) |
| darran | 0:ac21159e27f4 | 44 | } |
| darran | 0:ac21159e27f4 | 45 | m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply); |
| darran | 0:ac21159e27f4 | 46 | return DNS_OK; |
| darran | 0:ac21159e27f4 | 47 | } |
| darran | 0:ac21159e27f4 | 48 | else |
| darran | 0:ac21159e27f4 | 49 | { |
| darran | 0:ac21159e27f4 | 50 | return DNS_INUSE; //The previous req has not completed |
| darran | 0:ac21159e27f4 | 51 | } |
| darran | 0:ac21159e27f4 | 52 | } |
| darran | 0:ac21159e27f4 | 53 | |
| darran | 0:ac21159e27f4 | 54 | DNSRequestErr DNSRequest::resolve(Host* pHost) |
| darran | 0:ac21159e27f4 | 55 | { |
| darran | 0:ac21159e27f4 | 56 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 57 | { |
| darran | 0:ac21159e27f4 | 58 | m_pNetDnsRequest = Net::dnsRequest(pHost); |
| darran | 0:ac21159e27f4 | 59 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 60 | { |
| darran | 0:ac21159e27f4 | 61 | return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist) |
| darran | 0:ac21159e27f4 | 62 | } |
| darran | 0:ac21159e27f4 | 63 | m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply); |
| darran | 0:ac21159e27f4 | 64 | return DNS_OK; |
| darran | 0:ac21159e27f4 | 65 | } |
| darran | 0:ac21159e27f4 | 66 | else |
| darran | 0:ac21159e27f4 | 67 | { |
| darran | 0:ac21159e27f4 | 68 | return DNS_INUSE; //The previous req has not completed |
| darran | 0:ac21159e27f4 | 69 | } |
| darran | 0:ac21159e27f4 | 70 | } |
| darran | 0:ac21159e27f4 | 71 | |
| darran | 0:ac21159e27f4 | 72 | //Callbacks |
| darran | 0:ac21159e27f4 | 73 | void DNSRequest::setOnReply( void (*pMethod)(DNSReply) ) |
| darran | 0:ac21159e27f4 | 74 | { |
| darran | 0:ac21159e27f4 | 75 | m_pCb = pMethod; |
| darran | 0:ac21159e27f4 | 76 | } |
| darran | 0:ac21159e27f4 | 77 | |
| darran | 0:ac21159e27f4 | 78 | #if 0 //For doc only |
| darran | 0:ac21159e27f4 | 79 | template<class T> |
| darran | 0:ac21159e27f4 | 80 | void DNSRequest::setOnReply( T* pItem, void (T::*pMethod)(DNSReply) ) |
| darran | 0:ac21159e27f4 | 81 | { |
| darran | 0:ac21159e27f4 | 82 | m_pCbItem = (CDummy*) pItem; |
| darran | 0:ac21159e27f4 | 83 | m_pCbMeth = (void (CDummy::*)(DNSReply)) pMethod; |
| darran | 0:ac21159e27f4 | 84 | } |
| darran | 0:ac21159e27f4 | 85 | #endif |
| darran | 0:ac21159e27f4 | 86 | |
| darran | 0:ac21159e27f4 | 87 | DNSRequestErr DNSRequest::getResult(IpAddr* pIp) |
| darran | 0:ac21159e27f4 | 88 | { |
| darran | 0:ac21159e27f4 | 89 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 90 | { |
| darran | 0:ac21159e27f4 | 91 | return DNS_SETUP; |
| darran | 0:ac21159e27f4 | 92 | } |
| darran | 0:ac21159e27f4 | 93 | m_pNetDnsRequest->getResult(pIp); |
| darran | 0:ac21159e27f4 | 94 | return DNS_OK; |
| darran | 0:ac21159e27f4 | 95 | } |
| darran | 0:ac21159e27f4 | 96 | |
| darran | 0:ac21159e27f4 | 97 | DNSRequestErr DNSRequest::close() |
| darran | 0:ac21159e27f4 | 98 | { |
| darran | 0:ac21159e27f4 | 99 | if(!m_pNetDnsRequest) |
| darran | 0:ac21159e27f4 | 100 | { |
| darran | 0:ac21159e27f4 | 101 | return DNS_SETUP; |
| darran | 0:ac21159e27f4 | 102 | } |
| darran | 0:ac21159e27f4 | 103 | m_pNetDnsRequest->close(); |
| darran | 0:ac21159e27f4 | 104 | m_pNetDnsRequest = NULL; |
| darran | 0:ac21159e27f4 | 105 | return DNS_OK; |
| darran | 0:ac21159e27f4 | 106 | } |
| darran | 0:ac21159e27f4 | 107 | |
| darran | 0:ac21159e27f4 | 108 | void DNSRequest::onNetDnsReply(NetDnsReply r) |
| darran | 0:ac21159e27f4 | 109 | { |
| darran | 0:ac21159e27f4 | 110 | if(m_pCbItem && m_pCbMeth) |
| darran | 0:ac21159e27f4 | 111 | (m_pCbItem->*m_pCbMeth)((DNSReply) r); |
| darran | 0:ac21159e27f4 | 112 | else if(m_pCb) |
| darran | 0:ac21159e27f4 | 113 | m_pCb((DNSReply) r); |
| darran | 0:ac21159e27f4 | 114 | } |