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184 lines
5.7 KiB
HTML
184 lines
5.7 KiB
HTML
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR" content="Mozilla/4.77C-CCK-MCD Caldera Systems OpenLinux [en] (X11; U; Linux 2.4.2 i686) [Netscape]">
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<title>OpenSLP Programmers Guide - SLPDereg()</title>
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</head>
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<body text="#000000" bgcolor="#FFFFFF" link="#0000EF" vlink="#51188E" alink="#FF0000">
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<h2>
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SLPDereg</h2>
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<hr WIDTH="100%">
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<h3>
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Declaration</h3>
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<tt>#include <slp.h></tt>
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<p><tt><a href="/SLPError.html">SLPError</a> SLPDereg( <a href="SLPTypes.html#SLPHandle">SLPHandle</a><a href="#hslp">hslp</a>,</tt>
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<br><tt>
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const char* <a href="#srvurl">srvurl</a>,</tt>
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<br><tt>
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<a href="SLPRegReport.html">SLPRegReport</a> <a href="#callback">callback</a>,</tt>
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<br><tt>
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void* <a href="#cookie">cookie</a> )</tt>
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<h3>
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Description</h3>
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Deregisters the advertisement for URL <tt>srvurl</tt> in all scopes where
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the service is registered and all language locales. The deregistration
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is not just confined to the locale of the <tt>SLPHandle</tt>,. The
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API library is required to perform the operation in all scopes obtained
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through configuration.
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<br>
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<h3>
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Parameters</h3>
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<table BORDER CELLPADDING=5 NOSAVE >
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<tr VALIGN=TOP NOSAVE>
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<td NOSAVE><a NAME="hslp"></a><tt>hslp</tt></td>
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<td NOSAVE>The language specific <tt>SLPHandle</tt> on which to de-register
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the service.</td>
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</tr>
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<tr VALIGN=TOP NOSAVE>
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<td NOSAVE><a NAME="srvurl"></a><tt>srvurl</tt></td>
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<td>The SLP Service URL to de-register. May not be the empty string.
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May not be NULL. Must conform to SLP Service URL syntax.. See
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<a href="Syntax.html">Syntax</a>
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for more information on SLP Service URL syntax.</td>
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</tr>
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<tr VALIGN=TOP NOSAVE>
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<td><a NAME="callback"></a><tt>callback</tt></td>
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<td NOSAVE>The address of an <tt><a href="SLPRegReport.html">SLPRegReport</a></tt>
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function that will be called to report the operation completion status.
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May not be NULL. See <a href="Callbacks.html">Callbacks</a> for more information
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on how callbacks are used by the SLPAPI.</td>
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</tr>
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<tr VALIGN=TOP NOSAVE>
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<td NOSAVE><a NAME="cookie"></a><tt>cookie</tt></td>
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<td NOSAVE>Pointer to memory that gets passed to the callback code.
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May be NULL.</td>
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</tr>
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</table>
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<h3>
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Returns</h3>
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<table BORDER NOSAVE >
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<tr NOSAVE>
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<td NOSAVE>SLP_OK</td>
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<td>Indicates that the no error occurred during the operation.</td>
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</tr>
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<tr>
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<td>SLP_INVALID_REGISTRATION</td>
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<td>The deregistered service url does not conform to valid service url
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syntax. The service url being deregistered is not registered this
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means that either it was never registered via a call to SLPReg() or that
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the registration lifetime has expired. SLP_INVALID_REGISTRATION
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is commonly returned when an attempt is made to deregister a service that
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was registered by a call to SLPReg() on a different host.</td>
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</tr>
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<tr>
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<td>SLP_PARSE_ERROR</td>
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<td>The SLP message was rejected by a remote SLP agent. The API returns
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this error only when no information was retrieved, and at least one SA
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or DA indicated a protocol error. The data supplied through the API may
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be malformed or a may have been damaged in transit.</td>
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</tr>
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<tr>
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<td>SLP_AUTHENTICATION_ABSENT</td>
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<td>If the SLP framework supports authentication, this error arises when
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the UA or SA failed to send an authenticator for requests or registrations.</td>
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</tr>
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<tr>
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<td>SLP_AUTHENTICATION_FAILED</td>
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<td>If the SLP framework supports authentication, this error arises when
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a authentication on an SLP message failed.</td>
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</tr>
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<tr>
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<td>SLP_NETWORK_TIMED_OUT</td>
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<td>When no reply can be obtained in the time specified by the configured
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timeout interval for a unicast request, this error is returned. In
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other words, slpd is running, but something is wrong with it</td>
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</tr>
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<tr>
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<td>SLP_NETWORK_INIT_FAILED</td>
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<td>If the network cannot initialize properly, this error is returned.
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Will also be returned if an SA or DA agent (slpd) can not be contacted.
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slpd must be running in order to call SLPReg() or SLPDereg().</td>
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</tr>
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<tr>
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<td>SLP_MEMORY_ALLOC_FAILED </td>
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<td>Out of memory error</td>
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</tr>
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<tr>
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<td>SLP_PARAMETER_BAD</td>
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<td>If a parameter passed into a function is bad, this error is returned.</td>
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</tr>
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<tr>
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<td>SLP_NETWORK_ERROR</td>
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<td>The failure of networking during normal operations causes this error
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to be returned. In OpenSLP, this is the error you'll get if an underlying
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socket() call failed.</td>
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</tr>
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<tr>
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<td>SLP_INTERNAL_SYSTEM_ERROR</td>
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<td>A basic failure of the API causes this error to be returned. This occurs
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when a system call or library fails. The operation could not recover.</td>
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</tr>
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<tr>
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<td>SLP_HANDLE_IN_USE</td>
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<td>Callback functions are not permitted to recursively call into the API
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on the same SLPHandle, either directly or indirectly. If an attempt is
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made to do so, this error is returned from the called API function.</td>
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</tr>
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</table>
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<p>Be aware, especially if the call is async, of error codes that may be
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passed to the SLPRegReport() callback function.
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<br>
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<h3>
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Status</h3>
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<table CELLPADDING=5 NOSAVE >
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<tr VALIGN=TOP NOSAVE>
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<td NOSAVE>OpenSLP 0.6.0</td>
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<td NOSAVE>Fully implemented as specified by RFC 2614 </td>
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</tr>
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</table>
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<h3>
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See Also</h3>
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<a href="SLPReg.html">SLPReg()</a>, <a href="Syntax.html">Syntax</a>, <a href="Callbacks.html">Callbacks</a>
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</body>
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</html>
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