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<title>EWDPing - Ping/TraceRoute</title>
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<body bgcolor="#ffffff" text="#000000" link="#990033" vlink="#333399" alink="#ff0000">
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<a href="http://www.earthwalkdesigns.com/EWSoftware/EWDPing/"><img src="EarthWalk.gif" border="0" align="center" ></a>
<br>
<font size="+2">
<b>EWDPing Ping/TraceRoute Application
</b></font>
<br>
<img src="Colorbar.gif" border="0" align="center" ><br>
</center>
<a name="Variables"><b>EWDPing Variables</b></b></a>
EWDPing contains the following variables in EWDPingDlg:
<p>
<ul>
<a href="#CurrentHostName">CurrentHostName</a>
<br>
<a href="#DefHost">DefHost</a>
<br>
<a href="#HostName">HostName</a>
<br>
<a href="#icmpBuffer">icmpBuffer</a>
<br>
<a href="#icmpDataLen">icmpDataLen</a>
<br>
<a href="#icmpIntervalCount">icmpIntervalCount</a>
<br>
<a href="#icmpMaxIntervals">icmpMaxIntervals</a>
<br>
<a href="#icmpPingTTL">icmpPingTTL</a>
<br>
<a href="#icmpTracing">icmpTracing</a>
<br>
<a href="#IconState">IconState</a>
<br>
<a href="#largeImageList">largeImageList</a>
<br>
<a href="#LocalDomainName">LocalDomainName</a>
<br>
<a href="#LocalNameServer">LocalNameServer</a>
<br>
<a href="#pIcmpBuffer">pIcmpBuffer</a>
<br>
<a href="#PingSocket">PingSocket</a>
<br>
<a href="#smallImageList">smallImageList</a>
<br>
<a href="#TimerActive">TimerActive</a>
<br>
<a href="#TimerInterval">TimerInterval</a>
<br>
<a href="#TimerNumber">TimerNumber</a>
<br>
<a href="#TraceTarget">TraceTarget</a>
<br>
<a href="#wsaData">wsaData</a>
<br>
</ul>
<p>
<dl>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="CurrentHostName">char CurrentHostName[MAXHOSTNAME]</b></a>
<dd>
<ul>
<li>Local host name from system registry;
<li>Valid for Microsoft WindowsNT 4.0 Winsock 2;
<li>Might not be valid with other Winsock providers.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="DefHost">CString DefHost</b></a>
<dd>
<ul>
<li>Default host name for PING operations;
<li>Set in EWDPingOptionsDlg.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="HostName">char HostName[MAXHOSTNAME]</b></a>
<dd>
<ul>
<li>Name of host to PING;
<li>From EWDPingDlg entry.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpBuffer">char icmpBuffer[MAX_PACKET]</b></a>
<dd>
<ul>
<li>General purpose buffer for ICMP operations.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpDataLen">int icmpDataLen</b></a>
<dd>
<ul>
<li>Length of ICMP <i>data</i> in icmpBuffer;
<li>Does not include length of ICMP header.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpIntervalCount">unsigned long icmpIntervalCount</b></a>
<dd>
<ul>
<li>Number of times TimerInterval has been reached during an operation.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpMaxIntervals">unsigned long icmpMaxIntervals</b></a>
<dd>
<ul>
<li>Maximum icmpIntervalCount.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpPingTTL">int icmpPingTTL</b></a>
<dd>
<ul>
<li>TTL index for next trace operation;
<li>Set to 0 for PING operation;
<li>Selects next node in the Internet tree to PING on the way to the TraceTarget.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="icmpTracing">BOOL icmpTracing</b></a>
<dd>
<ul>
<li>TRUE = trace operation;
<li>FALSE = PING operation.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="IconState">int IconState</b></a>
<dd>
<ul>
<li>The next animated icon to display;
<li>Used as an index into the Icon's making up the animated icon.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="largeImageList">CImageList largeImageList</b></a>
<dd>
<ul>
<li>Large icon (32 x 32) list;
<li>Used by m_TraceList.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="LocalDomainName">CString LocalDomainName</b></a>
<dd>
<ul>
<li>Domain Name for local host from system registry;
<li>Valid for Microsoft WindowsNT 4.0 Winsock 2;
<li>Might not be valid with other Winsock providers.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="LocalNameServer">CString LocalNameServer</b></a>
<dd>
<ul>
<li>Local Name Server name from system registry;
<li>Valid for Microsoft WindowsNT 4.0 Winsock 2;
<li>Might not be valid with other Winsock providers.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="pIcmpBuffer">LPSTR pIcmpBuffer</b></a>
<dd>
<ul>
<li>FAR pointer to icmpBuffer.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="pIcmpHeader">LPIcmpHeader pIcmpHeader</b></a>
<dd>
<ul>
<li>Pointer to an IcmpHeader structure;
<li>Mapped to the current ICMP buffer.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="PingSocket">CIcmp PingSocket</b></a>
<dd>
<ul>
<li><a href="/earcgi/EWDHtml.cgi?/EWSoftware/CIcmp/index">CIcmp</a> object;
<li>Derived from CSocket object;
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="smallImageList">CImageList smallImageList</b></a>
<dd>
<ul>
<li>List of small (16 x 16) icons;
<li>Used by m_TraceList.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="TimerActive">BOOL TimerActive</b></a>
<dd>
<ul>
<li>TRUE = timer operation is running;
<li>FALSE = timer is idle.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="TimerInterval">int TimerInterval</b></a>
<dd>
<ul>
<li>Time, in mSec., for timer count.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="TimerNumber">int TimerNumber</b></a>
<dd>
<ul>
<li>Timer assigned by operating system;
<li>Valid only when TimerActive is TRUE.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="TraceTarget">struct in_addr TraceTarget</b></a>
<dd>
<ul>
<li>Address of the endpoint of a trace operation;
<li>Initialized to HostName at start of trace operation.
</ul>
</dt>
<p>
<Center>
<hr width="50%">
</center>
<p>
<dt><b><a name="wsaData">WSADATA wsaData</b></a>
<dd>
<ul>
<li>Winsock data returned from operating system.
</ul>
</dt>
</dl>
<p>
<center>
<img src="Colorbar.gif" border="0" align="center" ><br>
</center>
<font size="-1">
Copyright (c) 1997,1998. EarthWalk Designs.
<br>
Direct all inquiries to:<a href="mailto:jay@earthwalkdesigns.com">Jay Wheeler</a>
at EarthWalkDesigns.com
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