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7<title>GetSockOpt</title>
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10<h1><CODE>nn::socket::GetSockOpt</CODE> Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14s32 GetSockOpt(
15     s32 s,
16     s32 level,
17     int optname,
18     void * optval,
19     int * optlen
20);
21</pre>
22    </div>
23<h2>Arguments</h2>
24    <div class="section">
25      <table class="arguments">
26        <thead>
27          <tr>
28            <td width="15" />
29<th>Name</th>
30<td>Description</td>
31          </tr>
32        </thead>
33        <tr>
34<td>in</td>
35<th>s</th>
36<td>Specifies the socket descriptor. Specify a socket descriptor created using the <a href="../../nn/socket/Socket.html"><CODE>Socket</CODE></a> or <a href="../../nn/socket/Accept.html"><CODE>Accept</CODE></a> function.</td>
37        </tr>
38        <tr>
39<td>in</td>
40<th>level</th>
41<td>Specifies the target protocol layer (<a href="../../nn/socket/SocketLevel.html"><CODE>SocketLevel</CODE></a>).</td>
42        </tr>
43        <tr>
44<td>in</td>
45<th>optname</th>
46<td>Specifies the target options (<a href="../../nn/socket/SocketOptionType.html"><CODE>SocketOptionType</CODE></a>).</td>
47        </tr>
48        <tr>
49<td>out</td>
50<th>optval</th>
51<td>Specifies the buffer in which to store the setting.</td>
52        </tr>
53        <tr>
54<td>inout</td>
55<th>optlen</th>
56<td>Specifies the <SPAN class="argument">optval</SPAN> buffer length for <SPAN class="argument">optname</SPAN>.</td>
57        </tr> </table>
58    </div>
59<h2>Return Values</h2>
60    <div class="section">
61      <br /> <br />
62      <table class="arguments">
63        <thead>
64          <tr>
65<th>Value</th>
66<td>Description</td>
67          </tr>
68        </thead>
69        <tr>
70          <th>0</th>
71<td>Process was successful.</td>
72        </tr>
73        <tr>
74<th><CODE>ENETRESET</CODE></th>
75<td>Socket library is not initialized.</td>
76        </tr>
77        <tr>
78<th><CODE>EBADF</CODE></th>
79<td>Invalid socket descriptor.</td>
80        </tr>
81        <tr>
82<th><CODE>EINVAL</CODE></th>
83<td>Invalid processing.</td>
84        </tr>
85      </table> </div>
86<h2>Description</h2>
87    <div class="section">
88<p>Gets a socket's internal settings and internal state.</p><!-- write here --></div>
89<h2>See Also</h2>
90    <div class="section">
91<p class="reference"><a href="../../nn/socket/SetSockOpt.html"><CODE>SetSockOpt</CODE></a><br /> </p>
92    </div>
93<h2>Revision History</h2>
94    <div class="section">
95      <dl class="history">
96        <dt>2010/06/14</dt>
97<dd>Initial version.<br />
98        </dd>
99      </dl>
100    </div>
101  <hr><p>CONFIDENTIAL</p></body>
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