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1691df013fSAsim Jamshed<title>mtcp_getsockname</title>
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20*e5df9dc1SAsim Jamshed<div class="main">
2191df013fSAsim Jamshed<h1 align="center">mtcp_getsockname</h1>
22*e5df9dc1SAsim Jamshed<!--
2391df013fSAsim Jamshed<a href="#NAME">NAME</a><br>
2491df013fSAsim Jamshed<a href="#SYNOPSIS">SYNOPSIS</a><br>
2591df013fSAsim Jamshed<a href="#DESCRIPTION">DESCRIPTION</a><br>
2691df013fSAsim Jamshed<a href="#RETURN VALUE">RETURN VALUE</a><br>
2791df013fSAsim Jamshed<a href="#ERRORS">ERRORS</a><br>
2891df013fSAsim Jamshed<a href="#NOTES">NOTES</a><br>
2991df013fSAsim Jamshed<a href="#AUTHORS">AUTHORS</a><br>
3091df013fSAsim Jamshed<a href="#SEE ALSO">SEE ALSO</a><br>
3191df013fSAsim Jamshed<a href="#COLOPHON">COLOPHON</a><br>
3291df013fSAsim Jamshed<hr>
33*e5df9dc1SAsim Jamshed-->
3491df013fSAsim Jamshed
3591df013fSAsim Jamshed<h2>NAME
3691df013fSAsim Jamshed<a name="NAME"></a>
3791df013fSAsim Jamshed</h2>
3891df013fSAsim Jamshed
3991df013fSAsim Jamshed
4091df013fSAsim Jamshed
4191df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em">mtcp_getsockname
4291df013fSAsim Jamshed&minus; get socket name</p>
4391df013fSAsim Jamshed
4491df013fSAsim Jamshed<h2>SYNOPSIS
4591df013fSAsim Jamshed<a name="SYNOPSIS"></a>
4691df013fSAsim Jamshed</h2>
4791df013fSAsim Jamshed
4891df013fSAsim Jamshed
4991df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em"><b>#include
5091df013fSAsim Jamshed&lt;mtcp_api.h&gt;</b></p>
5191df013fSAsim Jamshed
5291df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em"><b>int
5391df013fSAsim Jamshedmtcp_getsockname(mctx_t</b> <i>mctx</i><b>, int</b>
5491df013fSAsim Jamshed<i>sockfd</i><b>, struct sockaddr *</b><i>addr</i><b>,
5591df013fSAsim Jamshedsocklen_t *</b><i>addrlen</i><b>);</b></p>
5691df013fSAsim Jamshed
5791df013fSAsim Jamshed<h2>DESCRIPTION
5891df013fSAsim Jamshed<a name="DESCRIPTION"></a>
5991df013fSAsim Jamshed</h2>
6091df013fSAsim Jamshed
6191df013fSAsim Jamshed
6291df013fSAsim Jamshed
6391df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em"><b>mtcp_getsockname</b>()
6491df013fSAsim Jamshedreturns the current address to which the socket
6591df013fSAsim Jamshed<i>sockfd</i> is bound, in the buffer pointed to by
6691df013fSAsim Jamshed<i>addr.</i> The <i>addrlen</i> argument should be
6791df013fSAsim Jamshedinitialized to indicate the amount of space (in bytes)
6891df013fSAsim Jamshedpointed to by <i>addr.</i> On return it contains the actual
6991df013fSAsim Jamshedsize of the socket address.</p>
7091df013fSAsim Jamshed
7191df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em">An
7291df013fSAsim Jamshed<b>mtcp_getsockname</b>() call takes an additional argument
7391df013fSAsim Jamshednamed <i>mctx</i> that represents the per-core mTCP context
7491df013fSAsim Jamshedin an application (see <b>mtcp_create_context()</b> for
7591df013fSAsim Jamsheddetails).</p>
7691df013fSAsim Jamshed
7791df013fSAsim Jamshed<h2>RETURN VALUE
7891df013fSAsim Jamshed<a name="RETURN VALUE"></a>
7991df013fSAsim Jamshed</h2>
8091df013fSAsim Jamshed
8191df013fSAsim Jamshed
8291df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em">Returns zero on
8391df013fSAsim Jamshedsuccess; -1 on failure. In case of failure, <i>errno</i> is
8491df013fSAsim Jamshedset appropriately.</p>
8591df013fSAsim Jamshed
8691df013fSAsim Jamshed<h2>ERRORS
8791df013fSAsim Jamshed<a name="ERRORS"></a>
8891df013fSAsim Jamshed</h2>
8991df013fSAsim Jamshed
9091df013fSAsim Jamshed
9191df013fSAsim Jamshed<table width="100%" border="0" rules="none" frame="void"
9291df013fSAsim Jamshed       cellspacing="0" cellpadding="0">
9391df013fSAsim Jamshed<tr valign="top" align="left">
9491df013fSAsim Jamshed<td width="11%"></td>
9591df013fSAsim Jamshed<td width="12%">
9691df013fSAsim Jamshed
9791df013fSAsim Jamshed
9891df013fSAsim Jamshed<p style="margin-top: 1em"><b>EBADF</b></p></td>
9991df013fSAsim Jamshed<td width="3%"></td>
10091df013fSAsim Jamshed<td width="74%">
10191df013fSAsim Jamshed
10291df013fSAsim Jamshed
10391df013fSAsim Jamshed<p style="margin-top: 1em">The argument <i>sockfd</i> is
10491df013fSAsim Jamshednot a valid socket descriptor.</p></td></tr>
10591df013fSAsim Jamshed<tr valign="top" align="left">
10691df013fSAsim Jamshed<td width="11%"></td>
10791df013fSAsim Jamshed<td width="12%">
10891df013fSAsim Jamshed
10991df013fSAsim Jamshed
11091df013fSAsim Jamshed<p><b>EINVAL</b></p></td>
11191df013fSAsim Jamshed<td width="3%"></td>
11291df013fSAsim Jamshed<td width="74%">
11391df013fSAsim Jamshed
11491df013fSAsim Jamshed
11591df013fSAsim Jamshed<p><i>addrlen</i> argument is invalid (e.g., is
11691df013fSAsim Jamshednegative).</p> </td></tr>
11791df013fSAsim Jamshed<tr valign="top" align="left">
11891df013fSAsim Jamshed<td width="11%"></td>
11991df013fSAsim Jamshed<td width="12%">
12091df013fSAsim Jamshed
12191df013fSAsim Jamshed
12291df013fSAsim Jamshed<p><b>ENOTSOCK</b></p></td>
12391df013fSAsim Jamshed<td width="3%"></td>
12491df013fSAsim Jamshed<td width="74%">
12591df013fSAsim Jamshed
12691df013fSAsim Jamshed
12791df013fSAsim Jamshed<p>The argument <i>sockfd</i> is pointing to an invalid
12891df013fSAsim JamshedmTCP socket.</p></td></tr>
12991df013fSAsim Jamshed</table>
13091df013fSAsim Jamshed
13191df013fSAsim Jamshed<h2>NOTES
13291df013fSAsim Jamshed<a name="NOTES"></a>
13391df013fSAsim Jamshed</h2>
13491df013fSAsim Jamshed
13591df013fSAsim Jamshed
13691df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em">The third
13791df013fSAsim Jamshedargument of <b>mtcp_getsockname()</b> is in reality an
13891df013fSAsim Jamshed<i>int *</i> (and this is what 4.x BSD and libc4 and libc5
13991df013fSAsim Jamshedhave). Some POSIX confusion resulted in the present
14091df013fSAsim Jamshed<i>socklen_t ,</i> also used by glibc.</p>
14191df013fSAsim Jamshed
14291df013fSAsim Jamshed<h2>AUTHORS
14391df013fSAsim Jamshed<a name="AUTHORS"></a>
14491df013fSAsim Jamshed</h2>
14591df013fSAsim Jamshed
14691df013fSAsim Jamshed
147*e5df9dc1SAsim Jamshed<p style="margin-left:11%; margin-top: 1em">mOS
148*e5df9dc1SAsim Jamsheddevelopment team &lt;[email protected]&gt;</p>
14991df013fSAsim Jamshed
15091df013fSAsim Jamshed<h2>SEE ALSO
15191df013fSAsim Jamshed<a name="SEE ALSO"></a>
15291df013fSAsim Jamshed</h2>
15391df013fSAsim Jamshed
15491df013fSAsim Jamshed
15591df013fSAsim Jamshed
15691df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em"><b>mtcp_bind</b>(),
15791df013fSAsim Jamshed<b>mtcp_socket</b>()</p>
15891df013fSAsim Jamshed
15991df013fSAsim Jamshed<h2>COLOPHON
16091df013fSAsim Jamshed<a name="COLOPHON"></a>
16191df013fSAsim Jamshed</h2>
16291df013fSAsim Jamshed
16391df013fSAsim Jamshed
16491df013fSAsim Jamshed<p style="margin-left:11%; margin-top: 1em">This page is
16591df013fSAsim Jamshedpart of mOS release 0.3 <i>docs</i> section. A description
16691df013fSAsim Jamshedof the project, and information about reporting bugs, can be
16791df013fSAsim Jamshedfound at http://mos.kaist.edu/.</p>
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