120 lines
3.8 KiB
HTML
120 lines
3.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 -->
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>if_nameindex</title>
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<body bgcolor="white">
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<basefont size="3"> <a name="if_nameindex"></a> <a name="tag_03_272"></a><!-- if_nameindex -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_272_01"></a>NAME</h4>
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<blockquote>if_nameindex - return all network interface names and indexes</blockquote>
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<h4><a name="tag_03_272_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/net/if.h.html">net/if.h</a>><br>
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<br>
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struct if_nameindex *</tt><i>if_nameindex</i><tt>(void);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_272_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i>if_nameindex</i>() function shall return an array of <i>if_nameindex</i> structures, one structure per interface. The end
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of the array is indicated by a structure with an <i>if_index</i> field of zero and an <i>if_name</i> field of NULL.</p>
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<p>Applications should call <a href="../functions/if_freenameindex.html"><i>if_freenameindex</i>()</a> to release the memory that
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may be dynamically allocated by this function, after they have finished using it.</p>
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</blockquote>
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<h4><a name="tag_03_272_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>An array of structures identifying local interfaces. A NULL pointer is returned upon an error, with <i>errno</i> set to indicate
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the error.</p>
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</blockquote>
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<h4><a name="tag_03_272_05"></a>ERRORS</h4>
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<blockquote>
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<p>The <i>if_nameindex</i>() function may fail if:</p>
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<dl compact>
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<dt>[ENOBUFS]</dt>
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<dd>Insufficient resources are available to complete the function.</dd>
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</dl>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_272_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_272_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_272_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_272_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_272_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="getsockopt.html"><i>getsockopt</i>()</a> , <a href="if_freenameindex.html"><i>if_freenameindex</i>()</a> , <a href=
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"if_indextoname.html"><i>if_indextoname</i>()</a> , <a href="if_nametoindex.html"><i>if_nametoindex</i>()</a> , <a href=
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"setsockopt.html"><i>setsockopt</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/net/if.h.html"><i><net/if.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_272_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 6. Derived from the XNS, Issue 5.2 specification.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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<hr>
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<center><font size="2"><!--footer start-->
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UNIX ® is a registered Trademark of The Open Group.<br>
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POSIX ® is a registered Trademark of The IEEE.<br>
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[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href=
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"../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>
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