private void WriteHeader(DnsHeader header)
{
bool printedWarning = false;
WriteLine("HEADER:");
WriteLine();
WriteLine("Opcode: {0}, Rcode: {1}, Id: {2}, Flags: {3}",
DnsUtility.ToString(header.OpCode),
header.ResponseCode.ToString().ToUpperInvariant(), header.Id,
GetHeaderFlags(header));
WriteLine("Question: {0}, Answer: {1}, Authority: {2}, Additional: {3}",
header.QuestionCount, header.AnswerCount, header.AuthorityCount,
header.AdditionalCount);
WriteLine();
if (header.IsTruncated)
{
WriteLine("WARNING: answer was truncated");
printedWarning = true;
}
if (header.IsRecursionDesired && !header.IsRecursionAllowed && !header.IsAuthorative)
{
WriteLine("WARNING: recursion was requested but disallowed");
printedWarning = true;
}
if (printedWarning)
{
WriteLine();
}
}
/// <summary>
/// Writes a formatted usage message to the output.
/// </summary>
/// <param name="format">The format specification.</param>
/// <param name="args">The format arguments.</param>
protected override void WriteUsage(string format, params object[] args)
{
if (!string.IsNullOrEmpty(format))
{
WriteLine(format, args);
WriteLine();
}
WriteLine("[@server] [qtype] [qclass] qname");
WriteLine(" - retrieve info about qname");
WriteLine(" server: query server name or forward server index");
WriteLine(" qtype: query type (A,CNAME,MX,NS,PTR,SOA,TXT,...)");
WriteLine(" qclass: query class (IN,CH,HS,ANY)");
WriteLine(" qname: query target name");
WriteLine("set opt [value]");
WriteLine(" - set specified option, where opt is one of:");
WriteLine(" qtype: default qtype (current:{0})", DnsUtility.ToString(this.DefaultQueryType));
WriteLine(" qclass: default qclass (current:{0})", DnsUtility.ToString(this.DefaultQueryClass));
WriteLine(" suffix: appends name to each query (current:{0})", this.NameSuffix);
WriteLine(" reverse: reverse ips before display (state:{0})", GetOptionOnOff(NDigOptions.ReverseAddrs));
WriteLine(" sort: sort section before display (state:{0})", GetOptionOnOff(NDigOptions.SortRecords));
WriteLine(" header: header display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteHeader));
WriteLine(" answer: answer section display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteAnswer));
WriteLine(" question: question section display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteQuestion));
WriteLine(" authority: authority section display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteAuthority));
WriteLine(" additional: additional section display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteAdditional));
WriteLine(" stats: query stats display mode (state:{0})", GetOptionOnOff(NDigOptions.WriteStats));
WriteLine(" noempty: suppress empty section display (state:{0})", GetOptionOnOff(NDigOptions.SuppressEmptySections));
WriteLine(" nologo: suppress program logo (state:{0})", GetOptionOnOff(NDigOptions.SuppressLogo));
WriteLine("config");
WriteLine(" - print resolver configuration");
WriteLine("servers");
WriteLine(" - print forward server list");
WriteLine("version");
WriteLine(" - print version and copyright header");
WriteLine("help, ?");
WriteLine(" - print help");
WriteLine("exit [save]");
WriteLine(" - exit program");
WriteLine(" save: save configuration (default:yes)");
}
/// <summary>
/// Returns a <see cref="System.String"/> representation of this instance.
/// </summary>
/// <returns>A <see cref="System.String"/> representation of this instance.</returns>
public override string ToString()
{
return(DnsUtility.Format("{0} {1}", base.ToString(), DnsUtility.ToString(this.Data)));
}
/// <summary>
/// Returns a <see cref="System.String"/> representation of this instance.
/// </summary>
/// <returns>A <see cref="System.String"/> representation of this instance.</returns>
public override string ToString()
{
return(DnsUtility.Format("{0} {1} {2} {3} {4} {5} {6} {7}",
base.ToString(), this.Master, this.RMbox, this.Serial, DnsUtility.ToString(this.Refresh),
DnsUtility.ToString(this.Retry), DnsUtility.ToString(this.Expire), DnsUtility.ToString(this.Minimum)));
}
private void DoSetCommand(string[] args)
{
switch (args[0].ToLowerInvariant())
{
case "suffix":
DnsName suffix = null;
if (args.Length == 2 && !DnsName.TryParse(args[1], out suffix))
{
WriteUsage("value: '{0}' is not a valid name", args[1]);
return;
}
this.NameSuffix = suffix;
WriteLine("suffix set: {0}", this.NameSuffix);
break;
case "qclass":
DnsQueryClass qclass = DnsQueryClass.IN;
if (args.Length == 2 && !TryParseEnum(args[1], out qclass))
{
WriteUsage("value: '{0}' is not a valid qclass", args[1]);
return;
}
this.DefaultQueryClass = qclass;
WriteLine("qclass set: {0}", DnsUtility.ToString(this.DefaultQueryClass));
break;
case "qtype":
DnsQueryType qtype = DnsQueryType.A;
if (args.Length == 2 && !TryParseEnum(args[1], out qtype))
{
WriteUsage("value: '{0}' is not a valid qtype", args[1]);
return;
}
this.DefaultQueryType = qtype;
WriteLine("qtype set: {0}", DnsUtility.ToString(this.DefaultQueryType));
break;
case "reverse":
ParseBooleanOption(NDigOptions.ReverseAddrs, "reverse", args);
break;
case "sort":
ParseBooleanOption(NDigOptions.SortRecords, "sort", args);
break;
case "header":
ParseBooleanOption(NDigOptions.WriteHeader, "header", args);
break;
case "question":
ParseBooleanOption(NDigOptions.WriteQuestion, "question", args);
break;
case "answer":
ParseBooleanOption(NDigOptions.WriteAnswer, "answer", args);
break;
case "authority":
ParseBooleanOption(NDigOptions.WriteAuthority, "authority", args);
break;
case "additional":
ParseBooleanOption(NDigOptions.WriteAdditional, "additional", args);
break;
case "stats":
ParseBooleanOption(NDigOptions.WriteStats, "stats", args);
break;
case "noempty":
ParseBooleanOption(NDigOptions.SuppressEmptySections, "noempty", args);
break;
case "nologo":
ParseBooleanOption(NDigOptions.SuppressLogo, "nologo", args);
break;
default:
WriteUsage("opt: '{0}' is not a valid option", args[0]);
return;
}
}