getifaces.html

SDK FAQ集

        <font color="#2040a0">pAddress</font> <font color="4444FF">=</font> <font color="4444FF">(</font><font color="#2040a0">sockaddr_in</font> <font color="4444FF">*</font><font color="4444FF">)</font> <font color="4444FF">&amp;</font> <font color="4444FF">(</font><font color="#2040a0">InterfaceList</font><font color="4444FF">[</font><font color="#2040a0">i</font><font color="4444FF">]</font>.<font color="#2040a0">iiBroadcastAddress</font><font color="4444FF">)</font><font color="4444FF">;</font>
        <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot; has bcast &quot;</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#2040a0">inet_ntoa</font><font color="4444FF">(</font><font color="#2040a0">pAddress</font><font color="4444FF">-</font><font color="4444FF">&gt;</font><font color="#2040a0">sin_addr</font><font color="4444FF">)</font><font color="4444FF">;</font>

        <font color="#2040a0">pAddress</font> <font color="4444FF">=</font> <font color="4444FF">(</font><font color="#2040a0">sockaddr_in</font> <font color="4444FF">*</font><font color="4444FF">)</font> <font color="4444FF">&amp;</font> <font color="4444FF">(</font><font color="#2040a0">InterfaceList</font><font color="4444FF">[</font><font color="#2040a0">i</font><font color="4444FF">]</font>.<font color="#2040a0">iiNetmask</font><font color="4444FF">)</font><font color="4444FF">;</font>
        <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot; and netmask &quot;</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#2040a0">inet_ntoa</font><font color="4444FF">(</font><font color="#2040a0">pAddress</font><font color="4444FF">-</font><font color="4444FF">&gt;</font><font color="#2040a0">sin_addr</font><font color="4444FF">)</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#2040a0">endl</font><font color="4444FF">;</font>

        <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot; Iface is &quot;</font><font color="4444FF">;</font>
        <font color="#2040a0">u_long</font> <font color="#2040a0">nFlags</font> <font color="4444FF">=</font> <font color="#2040a0">InterfaceList</font><font color="4444FF">[</font><font color="#2040a0">i</font><font color="4444FF">]</font>.<font color="#2040a0">iiFlags</font><font color="4444FF">;</font>
        <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">nFlags</font> <font color="4444FF">&amp;</font> <font color="#2040a0">IFF_UP</font><font color="4444FF">)</font> <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;up&quot;</font><font color="4444FF">;</font>
        <strong>else</strong>                 <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;down&quot;</font><font color="4444FF">;</font>
        <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">nFlags</font> <font color="4444FF">&amp;</font> <font color="#2040a0">IFF_POINTTOPOINT</font><font color="4444FF">)</font> <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;, is point-to-point&quot;</font><font color="4444FF">;</font>
        <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">nFlags</font> <font color="4444FF">&amp;</font> <font color="#2040a0">IFF_LOOPBACK</font><font color="4444FF">)</font>     <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;, is a loopback iface&quot;</font><font color="4444FF">;</font>
        <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;, and can do: &quot;</font><font color="4444FF">;</font>
        <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">nFlags</font> <font color="4444FF">&amp;</font> <font color="#2040a0">IFF_BROADCAST</font><font color="4444FF">)</font> <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;bcast &quot;</font><font color="4444FF">;</font>
        <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">nFlags</font> <font color="4444FF">&amp;</font> <font color="#2040a0">IFF_MULTICAST</font><font color="4444FF">)</font> <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;multicast &quot;</font><font color="4444FF">;</font>
        <font color="#2040a0">cout</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#2040a0">endl</font><font color="4444FF">;</font>
    <font color="4444FF"><strong>}</strong></font>

    <strong>return</strong> <font color="#FF0000">0</font><font color="4444FF">;</font>
<font color="4444FF"><strong>}</strong></font>

<strong>int</strong> <font color="#2040a0">main</font><font color="4444FF">(</font><font color="4444FF">)</font>
<font color="4444FF"><strong>{</strong></font>
    <font color="#2040a0">WSADATA</font> <font color="#2040a0">WinsockData</font><font color="4444FF">;</font>
    <strong>if</strong> <font color="4444FF">(</font><font color="#2040a0">WSAStartup</font><font color="4444FF">(</font><font color="#2040a0">MAKEWORD</font><font color="4444FF">(</font><font color="#FF0000">2</font>, <font color="#FF0000">2</font><font color="4444FF">)</font>, <font color="4444FF">&amp;</font><font color="#2040a0">WinsockData</font><font color="4444FF">)</font> <font color="4444FF">!</font><font color="4444FF">=</font> <font color="#FF0000">0</font><font color="4444FF">)</font> <font color="4444FF"><strong>{</strong></font>
        <font color="#2040a0">cerr</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#008000">&quot;Failed to find Winsock 2.2!&quot;</font> <font color="4444FF">&lt;</font><font color="4444FF">&lt;</font> <font color="#2040a0">endl</font><font color="4444FF">;</font>
        <strong>return</strong> <font color="#FF0000">2</font><font color="4444FF">;</font>
    <font color="4444FF"><strong>}</strong></font>

    <strong>int</strong> <font color="#2040a0">nRetVal</font> <font color="4444FF">=</font> <font color="#2040a0">doit</font><font color="4444FF">(</font><font color="4444FF">)</font><font color="4444FF">;</font>

    <font color="#2040a0">WSACleanup</font><font color="4444FF">(</font><font color="4444FF">)</font><font color="4444FF">;</font>

    <strong>return</strong> <font color="#2040a0">nRetVal</font><font color="4444FF">;</font>
<font color="4444FF"><strong>}</strong></font>

</pre>

		</td>
	</tr>
</table>


<!--  ---- Document Footer ----  -->

<hr noshade size=1 color=#404040>

<table cellpadding=5 cellspacing=0 border=0 width=95% align=center> 
	<tr>
		<td align=left>
		    <a href="../examples/ipaddr.html">&lt;&lt; Get the Local IP Address(es)</a>
		</td>

		<td align=right>
		    <a href="../examples/getmac-netbios.html">Get MAC Address, NetBIOS Method &gt;&gt;</a>
		</td>
	</tr>

	<tr>
		<td align=left>
			<i>Last modified on 29 April 2000 at 15:52 UTC-7</i>
		</td>

		<td align=right>
			<font size=-1>Please send corrections to <a href="mailto:[e-mail]">[e-mail]</a>.</font>
		</td>
	</tr>	
</table>	

<table cellpadding=5 cellspacing=0 border=0 width=95% align=center> 
	<tr>
		<td align=left width=33%>
			<font size=-1>
				<a href="../index.html"><b>&lt;</b> Go to the main FAQ page</a>
			</font>
		</td>

		<td width=33%>
			<font size=-1>
			<center>
				<a href="http://www.cyberport.com/~tangent/programming"><b>&lt;&lt;</b> Go to my Programming pages</a>
			</center>
			</font>
		</td>

		<td align=right width=33%>
			<font size=-1>
				<a href="http://www.cyberport.com/~tangent/"><b>&lt;&lt;&lt;</b> Go to my Home Page</a>
			</font>
		</td>
	</tr>	
</table>	


</body>
</html>