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HTML
404 lines
21 KiB
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="UNIX 98 compatibility" />
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<meta name="abstract" content="Created by The Open Group, a consortium of developers and venders, UNIX 98 improved the inter-operability of the UNIX operating system while incorporating much of the Internet-related function for which UNIX had become known." />
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<meta name="description" content="Created by The Open Group, a consortium of developers and venders, UNIX 98 improved the inter-operability of the UNIX operating system while incorporating much of the Internet-related function for which UNIX had become known." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2001, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="cunix98" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>UNIX 98
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compatibility</title>
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</head>
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<body id="cunix98"><a name="cunix98"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">UNIX 98
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compatibility</h1>
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<div><p>Created by The Open Group, a consortium of developers and venders, UNIX<sup>®</sup> 98
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improved the inter-operability of the UNIX operating system while incorporating
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much of the Internet-related function for which UNIX had become known.</p>
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<div class="section"><p>i5/OS™ sockets provide programmers the ability to write
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socket applications that are compatible with UNIX 98 operating environment. Currently, IBM<sup>®</sup> supports
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two versions of most sockets APIs. The base i5/OS API uses Berkeley Socket Distribution
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(BSD) 4.3 structures and syntax. The other uses syntax and structures compatible
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with BSD 4.4 and the UNIX 98 programming interface specifications. You can
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select the UNIX 98
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compatible interface by defining the _XOPEN_SOURCE macro to a value of 520
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or greater.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Differences in address structure for UNIX 98 compatible
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applications</h4><p>When you specify the _XOPEN_OPEN macro, you can write
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UNIX 98
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compatible applications with the same address families that are used in default i5/OS implementations;
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however, there are differences in the <strong>sockaddr</strong> address structure. The
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table compares the BSD 4.3<strong> sockaddr </strong> address structure with the UNIX 98
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compatible address structure:</p>
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</div>
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<div class="section">
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption>Table 1. Comparison of BSD 4.3 and UNIX 98/BSD 4.4 socket address structure</caption><thead align="left"><tr><th valign="top" id="d0e84">BSD 4.3 structure</th>
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<th valign="top" id="d0e86">BSD 4.4/ UNIX 98 compatible structure</th>
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</tr>
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</thead>
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<tbody><tr><td colspan="2" valign="top" headers="d0e84 d0e86 "><strong>sockaddr address structure</strong></td>
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</tr>
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<tr><td valign="top" headers="d0e84 "> <pre>struct sockaddr {
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u_short sa_family;
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char sa_data[14];
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};</pre>
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</td>
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<td valign="top" headers="d0e86 "> <pre>struct sockaddr {
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uint8_t sa_len;
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sa_family_t sa_family
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char sa_data[14];
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};</pre>
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</td>
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</tr>
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<tr><td colspan="2" valign="top" headers="d0e84 d0e86 "><strong>sockaddr_in address structure</strong></td>
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</tr>
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<tr><td valign="top" headers="d0e84 "> <pre>struct sockaddr_in {
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short sin_family;
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u_short sin_port;
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struct in_addr sin_addr;
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char sin_zero[8];
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};</pre>
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</td>
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<td valign="top" headers="d0e86 "> <pre> struct sockaddr_in {
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uint8_t sin_len;
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sa_family_t sin_family;
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u_short sin_port;
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struct in_addr sin_addr;
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char sin_zero[8];
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};</pre>
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</td>
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</tr>
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<tr><td colspan="2" valign="top" headers="d0e84 d0e86 "><strong>sockaddr_in6 address structure</strong></td>
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</tr>
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<tr><td valign="top" headers="d0e84 "> <pre> struct sockaddr_in6 {
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sa_family_t sin6_family;
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in_port_t sin6_port;
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uint32_t sin6_flowinfo;
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struct in6_addr sin6_addr;
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uint32_t sin6_scope_id;
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};</pre>
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</td>
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<td valign="top" headers="d0e86 "> <pre> struct sockaddr_in6 {
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uint8_t sin6_len;
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sa_family_t sin6_family;
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in_port_t sin6_port;
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uint32_t sin6_flowinfo;
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struct in6_addr sin6_addr;
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uint32_t sin6_scope_id;
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};</pre>
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</td>
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</tr>
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<tr><td colspan="2" valign="top" headers="d0e84 d0e86 "> <strong>sockaddr_un address structure</strong></td>
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</tr>
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<tr><td valign="top" headers="d0e84 "> <pre>struct sockaddr_un {
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short sun_family;
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char sun_path[126];
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}; </pre>
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</td>
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<td valign="top" headers="d0e86 "> <pre>struct sockaddr_un {
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uint8_t sun_len;
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sa_family_t sun_family;
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char sun_path[126]
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};</pre>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section"><h4 class="sectiontitle">API differences</h4><p>When you develop in ILE-based languages
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and an application is compiled with the _XOPEN_SOURCE macro, some sockets
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APIs are mapped to internal names. These internal names provide the same function
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as the original API. The table lists these affected APIs. If you are writing
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socket applications in some other C-based language, you can write directly
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to the internal name of these APIs. Use the link to the original API to see
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usage notes and details for both versions of these APIs.</p>
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</div>
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<div class="section">
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption>Table 2. API and UNIX 98 equivelant name</caption><thead align="left"><tr><th valign="top" id="d0e162">API name</th>
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<th valign="top" id="d0e164">Internal name</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e162 "><span class="apiname">accept()</span></td>
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<td valign="top" headers="d0e164 ">qso_accept98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">accept_and_recv()</span></td>
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<td valign="top" headers="d0e164 ">qso_accept_and_recv98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">bind()</span></td>
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<td valign="top" headers="d0e164 ">qso_bind98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">connect()</span></td>
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<td valign="top" headers="d0e164 ">qso_connect98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">endhostent()</span></td>
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<td valign="top" headers="d0e164 ">qso_endhostent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">endnetent()</span></td>
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<td valign="top" headers="d0e164 ">qso_endnetent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">endprotoent()</span></td>
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<td valign="top" headers="d0e164 ">qso_endprotoent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">endservent()</span></td>
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<td valign="top" headers="d0e164 ">qso_endservent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getaddrinfo()</span></td>
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<td valign="top" headers="d0e164 ">qso_getaddrinfo98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostbyaddr()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostbyaddr98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostbyaddr_r()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostbyaddr_r98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostname()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostname98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostname_r()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostname_r98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostbyname()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostbyname98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">gethostent()</span></td>
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<td valign="top" headers="d0e164 ">qso_gethostent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getnameinfo()</span></td>
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<td valign="top" headers="d0e164 ">qso_getnameinfo98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getnetbyaddr()</span></td>
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<td valign="top" headers="d0e164 ">qso_getnetbyaddr98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getnetbyname()</span></td>
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<td valign="top" headers="d0e164 ">qso_getnetbyname98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getnetent()</span></td>
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<td valign="top" headers="d0e164 ">qso_getnetent98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getpeername()</span></td>
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<td valign="top" headers="d0e164 ">qso_getpeername98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getprotobyname()</span></td>
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<td valign="top" headers="d0e164 ">qso_getprotobyname98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getprotobynumber()</span></td>
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<td valign="top" headers="d0e164 ">qso_getprotobynumber98()</td>
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</tr>
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<tr><td valign="top" headers="d0e162 "><span class="apiname">getprotoent()</span></td>
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<td valign="top" headers="d0e164 ">qso_getprotoent98()</td>
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|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">getsockname()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_getsockname98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">getsockopt()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_getsockopt98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">getservbyname()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_getservbyname98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">getservbyport()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_getservbyport98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">getservent()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_getservent98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">inet_addr()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_inet_addr98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">inet_lnaof()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_inet_lnaof98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">inet_makeaddr()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_inet_makeaddr98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">inet_netof()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_inet_netof98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">inet_network()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_inet_network98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">listen()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_listen98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">Rbind()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_Rbind98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">recv()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_recv98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">recvfrom()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_recvfrom98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">recvmsg()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_recvmsg98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">send()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_send98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">sendmsg()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_sendmsg98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">sendto()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_sendto98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">sethostent()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_sethostent98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">setnetent()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_setnetent98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">setprotoent()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_setprotoent98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">setservent()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_setprotoent98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">setsockopt()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_setsockopt98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">shutdown()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_shutdown98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">socket()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_socket98()</td>
|
||
|
|
</tr>
|
||
|
|
<tr><td valign="top" headers="d0e162 "><span class="apiname">socketpair()</span></td>
|
||
|
|
<td valign="top" headers="d0e164 ">qso_socketpair98()</td>
|
||
|
|
</tr>
|
||
|
|
</tbody>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div>
|
||
|
|
<div class="familylinks">
|
||
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="aconcepts.htm" title="Advanced socket concepts go beyond a general discussion of what sockets are and how they work. They provide ways to design socket applications for larger and more complex networks.">Advanced socket concepts</a></div>
|
||
|
|
</div>
|
||
|
|
<div class="relconcepts"><strong>Related concepts</strong><br />
|
||
|
|
<div><a href="howdosockets.htm" title="Sockets are commonly used for client/server interaction. Typical system configuration places the server on one machine, with the clients on other machines. The clients connect to the server, exchange information, and then disconnect.">How sockets work</a></div>
|
||
|
|
</div>
|
||
|
|
<div class="relinfo"><strong>Related information</strong><br />
|
||
|
|
<div><a href="../apis/accept.htm">accept()</a></div>
|
||
|
|
<div><a href="../apis/acceptr.htm">accept_and_recv()</a></div>
|
||
|
|
<div><a href="../apis/connec.htm">connect()</a></div>
|
||
|
|
<div><a href="../apis/sendms.htm">sendmsg()</a></div>
|
||
|
|
<div><a href="../apis/recvfr.htm">recvfrom()</a></div>
|
||
|
|
<div><a href="../apis/recvms.htm">recvmsg()</a></div>
|
||
|
|
<div><a href="../apis/rbind.htm">Rbind()</a></div>
|
||
|
|
<div><a href="../apis/recv.htm">recv()</a></div>
|
||
|
|
<div><a href="../apis/bind.htm">bind()</a></div>
|
||
|
|
<div><a href="../apis/gsockn.htm">getsockname()</a></div>
|
||
|
|
<div><a href="../apis/socket.htm">socket()</a></div>
|
||
|
|
<div><a href="../apis/socketp.htm">socketpair()</a></div>
|
||
|
|
<div><a href="../apis/listen.htm">listen()</a></div>
|
||
|
|
<div><a href="../apis/ioctl.htm">ioctl()</a></div>
|
||
|
|
<div><a href="../apis/gpeern.htm">getpeername()</a></div>
|
||
|
|
<div><a href="../apis/close.htm">close()</a></div>
|
||
|
|
<div><a href="../apis/ehostnt.htm">endhostent()</a></div>
|
||
|
|
<div><a href="../apis/enetnt.htm">endnetent()</a></div>
|
||
|
|
<div><a href="../apis/eprotnt.htm">endprotoent()</a></div>
|
||
|
|
<div><a href="../apis/esrvnt.htm">endservent()</a></div>
|
||
|
|
<div><a href="../apis/ghostnm.htm">gethostbyname()</a></div>
|
||
|
|
<div><a href="../apis/getaddrinfo.htm">getaddrinfo()</a></div>
|
||
|
|
<div><a href="../apis/ghosta.htm">gethostbyaddr()</a></div>
|
||
|
|
<div><a href="../apis/getnameinfo.htm">getnameinfo()</a></div>
|
||
|
|
<div><a href="../apis/tsghosta.htm">gethostbyaddr_r()</a></div>
|
||
|
|
<div><a href="../apis/ghostn.htm">gethostname()</a></div>
|
||
|
|
<div><a href="../apis/ghostnt.htm">gethostent()</a></div>
|
||
|
|
<div><a href="../apis/gnetadr.htm">getnetbyaddr()</a></div>
|
||
|
|
<div><a href="../apis/gnetnm.htm">getnetbyname()</a></div>
|
||
|
|
<div><a href="../apis/gnetnt.htm">getnetent()</a></div>
|
||
|
|
<div><a href="../apis/gprotnm.htm">getprotobyname()</a></div>
|
||
|
|
<div><a href="../apis/gprotnu.htm">getprotobynumber()</a></div>
|
||
|
|
<div><a href="../apis/gprotnt.htm">getprotoent()</a></div>
|
||
|
|
<div><a href="../apis/gsocko.htm">getsockopt()</a></div>
|
||
|
|
<div><a href="../apis/gsrvnm.htm">getservbyname()</a></div>
|
||
|
|
<div><a href="../apis/gsrvprt.htm">getservbyport()</a></div>
|
||
|
|
<div><a href="../apis/gsrvnt.htm">getservent()</a></div>
|
||
|
|
<div><a href="../apis/inaddr.htm">inet_addr()</a></div>
|
||
|
|
<div><a href="../apis/inlnao.htm">inet_1naof()</a></div>
|
||
|
|
<div><a href="../apis/inmaka.htm">inet_makeaddr()</a></div>
|
||
|
|
<div><a href="../apis/inneto.htm">inet_netof()</a></div>
|
||
|
|
<div><a href="../apis/innetw.htm">inet_network()</a></div>
|
||
|
|
<div><a href="../apis/send.htm">send()</a></div>
|
||
|
|
<div><a href="../apis/sendto.htm">sendto()</a></div>
|
||
|
|
<div><a href="../apis/shostnt.htm">sethostent()</a></div>
|
||
|
|
<div><a href="../apis/snetnt.htm">setnetent()</a></div>
|
||
|
|
<div><a href="../apis/sprotnt.htm">setprotoent()</a></div>
|
||
|
|
<div><a href="../apis/ssrvnt.htm">setservent()</a></div>
|
||
|
|
<div><a href="../apis/ssocko.htm">setsockopt()</a></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|