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SIP Stack with SIP Proxy - (VOIP)

, 11 Jun 2007
C# implementation of SIP
SIP_Proxy_demo.zip
SIP_Proxy_demo
SIP_Proxy_demo.suo
SIP_Proxy_demo
bin
Debug
LumiSoft.Net.dll
SIP_Proxy_demo.exe
SIP_Proxy_demo.vshost.exe
dep
LumiSoft.Net.dll
LumiSoft.Net.pdb
Properties
Settings.settings
Resources
add.ico
app.ico
delete.ico
edit.ico
error.ico
info.ico
refresh.ico
rule.ico
server_running.ico
server_stopped.ico
viewmessages.ico
Stack.zip
Net
docs
dns
dns_records.jpg
dns_records.vsd
Net
_junk
_Obsolete
AUTH
bin
Release
LumiSoft.Net.dll
Data
Dns
Client
FTP
Client
Server
HTTP
Server
ICMP
IMAP
Client
Server
IO
Log
LumiSoft.Net
Mime
vCard
Net.csproj.user
Net.suo
NNTP
Client
POP3
Client
Server
RTP
SDP
ServersCore
SIP
Client
Message
Proxy
Stack
SMTP
Client
Server
STUN
Client
Message
URI
using System;
using System.Collections.Generic;
using System.Text;

namespace LumiSoft.Net.Dns.Client
{
    /// <summary>
    /// DNS SRV record. SRV record specifies the location of services. Defined in RFC 2782.
    /// </summary>
    [Serializable]
    public class DNS_rr_SRV : DNS_rr_base
    {
        private int    m_Priority = 1;
        private int    m_Weight   = 1;
        private int    m_Port     = 0;
        private string m_Target   = "";

        /// <summary>
        /// Default constructor.
        /// </summary>
        /// <param name="priority">Service priority.</param>
        /// <param name="weight">Weight value.</param>
        /// <param name="port">Service port.</param>
        /// <param name="target">Service provider host name or IP address.</param>
        /// <param name="ttl">Time to live value in seconds.</param>
        public DNS_rr_SRV(int priority,int weight,int port,string target,int ttl) : base(QTYPE.SRV,ttl)
        {
            m_Priority = priority;
            m_Weight   = weight;
            m_Port     = port;
            m_Target   = target;
        }


        #region static method Parse

        /// <summary>
        /// Parses resource record from reply data.
        /// </summary>
        /// <param name="reply">DNS server reply data.</param>
        /// <param name="offset">Current offset in reply data.</param>
        /// <param name="rdLength">Resource record data length.</param>
        /// <param name="ttl">Time to live in seconds.</param>
        public static DNS_rr_SRV Parse(byte[] reply,ref int offset,int rdLength,int ttl)
        {
            // Priority Weight Port Target
            
            // Priority
            int priority  = reply[offset++] << 8 | reply[offset++];

            // Weight
            int weight  = reply[offset++] << 8 | reply[offset++];

            // Port
            int port  = reply[offset++] << 8 | reply[offset++];

            // Target
            string target = "";
            Dns_Client.GetQName(reply,ref offset,ref target);

            return new DNS_rr_SRV(priority,weight,port,target,ttl);
        }

        #endregion


        #region Properties Implementation

        /// <summary>
        /// Gets service priority. Lowest value means greater priority.
        /// </summary>
        public int Priority
        {
            get{ return m_Priority; }
        }

        /// <summary>
        /// Gets weight. The weight field specifies a relative weight for entries with the same priority. 
        /// Larger weights SHOULD be given a proportionately higher probability of being selected.
        /// </summary>
        public int Weight
        {
            get{ return m_Weight; }
        }

        /// <summary>
        /// Port where service runs.
        /// </summary>
        public int Port
        {
            get{ return m_Port; }
        }

        /// <summary>
        /// Service provider host name or IP address.
        /// </summary>
        public string Target
        {
            get{ return m_Target; }
        }

        #endregion

    }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Ivar Lumi

Estonia Estonia
No Biography provided

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