235 lines
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235 lines
16 KiB
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<meta name="DC.Title" content="User exit program parameter list for DDM" />
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<meta name="abstract" content="The user exit program on the target server passes two parameter values: a character return code field and a character data structure containing various parameter values." />
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<meta name="description" content="The user exit program on the target server passes two parameter values: a character return code field and a character data structure containing various parameter values." />
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<meta name="DC.subject" content="parameter list, description, security, target DDM (TDDM), user exit program, TDDM (target DDM), DDM target considerations, target DDM (TDDM), TDDM (target DDM), DDM target considerations, I/O operation, COMMAND function, data authority, data authority" />
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<meta name="keywords" content="parameter list, description, security, target DDM (TDDM), user exit program, TDDM (target DDM), DDM target considerations, target DDM (TDDM), TDDM (target DDM), DDM target considerations, I/O operation, COMMAND function, data authority, data authority" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<title>User exit program parameter list for DDM</title>
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</head>
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<body id="rbae5userparameterl"><a name="rbae5userparameterl"><!-- --></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">User exit program parameter list for DDM</h1>
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<div><p>The user exit program on the target server passes two parameter
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values: a character return code field and a character data structure containing
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various parameter values.</p>
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<div class="section"><p>The user exit program on the target server uses the character
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data structure parameter values, that are passed by the TDDM, to evaluate
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whether to allow the request from the source server. The parameter list is
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created each time a file access request or command request is sent to the
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TDDM; when any one of the functions shown for the <em>Subapplication</em> field
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is requested, the parameter list is created. When file I/O operations are
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performed, this parameter list is created only for the file open request,
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not for any of the I/O operation requests that follow.</p>
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</div>
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<div class="section"><p>The program uses the parameter list to determine whether a source
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server user's file access or command request should be accepted or rejected.
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The list contains the following parameters and values:</p>
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<ul><li>The name of the user profile or default user profile under which the source
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server user's request is run.</li>
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<li>The name of the application program on the source server being used. For
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DDM use, the name is *DDM. For DRDA<sup>®</sup> use, the name is *DRDA.</li>
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<li>The name of the command or function (subapplication) being requested for
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use on the target server or one of its files. <p>Most of the functions listed
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in the following table directly affect a file, including the EXTRACT function,
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which extracts information from the file when commands such as <span class="cmdname">Display
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File Description (DSPFD)</span> or <span class="cmdname">Display File Field Description
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(DSPFFD)</span> are specified by the source server user. Some functions
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are member-related functions, such as the CHGMBR function, which allows characteristics
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of a member to be changed. The COMMAND function indicates that a command string
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is submitted by the <span class="cmdname">Submit Remote Command (SBMRMTCMD)</span> command
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to run on the target server. The SQLCNN function specifies a DRDA connect
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attempt.</p>
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</li>
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<li>The name of the file (object) to be accessed in the way specified on the
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previous parameter. This field does not apply if a command string (COMMAND)
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or stream and directory access commands are being submitted or if it is a DRDA command.</li>
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<li>If the stream and directory access commands are specified, then the object
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and directory fields have a value of *SPC. The user must go to the <em>Other</em> field
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to get the alternative object name and alternative path name.</li>
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<li>The name of the library containing the file, if a file is being accessed.</li>
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<li>The name of the file member, if a file member is being accessed. Stream
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and access commands have a value of *N.</li>
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<li>The format field does not apply for DDM or DRDA.</li>
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<li>Depending on how the next field is used, the length varies.</li>
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<li>The <em>Other</em> field is used for as many as three of the following six
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values; the first two are always specified (*N might be used for the second
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value if the system name cannot be determined), and either of the last four
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might be specified, depending on the type of function specified in the <em>Subapplication</em> field.
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<ul><li>The location name of the source server. This matches the RMTLOCNAME parameter
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value specified in the target server's device description for the source server
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if APPC communications is being used.</li>
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<li>The system name of the source server.</li>
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<li>If a file was specified and it is to be opened, (OPEN) for I/O operations,
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this field indicates which type of operation is being requested. For example,
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if a file is being opened for read operations only, the input request value
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is set to a 1 and the remaining values are set to a 0.</li>
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<li>The alternative object name.</li>
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<li>The alternative directory name.</li>
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<li>The name of the <span class="keyword">iSeries™</span> command,
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if a command string is being submitted, followed by all of its submitted parameters
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and values.</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="tablenoborder"><a name="rbae5userparameterl__rbae5exittbl"><!-- --></a><table cellpadding="4" cellspacing="0" summary="" id="rbae5userparameterl__rbae5exittbl" width="100%" frame="border" border="1" rules="rows"><caption>Table 1. Parameter list for user exit program on target server</caption><thead align="left"><tr><th align="left" valign="bottom" width="14.814814814814813%" id="d0e154"><strong>Field</strong></th>
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<th align="left" valign="bottom" width="15.185185185185185%" id="d0e157"><strong>Type</strong></th>
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<th align="left" valign="bottom" width="14.629629629629628%" id="d0e160"><strong>Length</strong></th>
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<th align="left" valign="bottom" width="55.37037037037037%" id="d0e163"><strong>Description</strong></th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>User</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>User profile name of target DDM job.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Application</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Application name:</strong> <ul><li>'*DDM ' for Distributed Data Management.</li>
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</ul>
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</td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Subapplication</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Requested function:</strong> <ul><li><samp class="codeph">'ADDMBR ' 'DELETE ' 'RGZMBR '</samp></li>
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<li><samp class="codeph">'CHANGE ' 'EXTRACT ' 'RMVMBR '</samp></li>
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<li><samp class="codeph">'Change Data Area (CHGDTAARA) ' 'INITIALIZE' 'RNMMBR '</samp></li>
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<li><samp class="codeph">'CHGMBR ' 'LOAD ' 'Retrieve Data Area (RTVDTAARA)'</samp></li>
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<li><samp class="codeph">'CLEAR ' 'LOCK ' 'SNDDTAQ '</samp></li>
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<li><samp class="codeph">'CLRDTAQ ' 'Move (MOVE) '</samp></li>
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<li><samp class="codeph">'COMMAND ' 'OPEN '</samp></li>
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<li><samp class="codeph">'Copy (COPY) ' 'RCVDTAQ '</samp></li>
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<li><samp class="codeph">'CREATE ' 'RENAME '</samp></li>
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<li><samp class="codeph">'SQLCNN ' </samp></li>
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</ul>
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</td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Object</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Specified file name. *N is used when the
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subapplication field is 'COMMAND '. *SPC is used when the file is a document
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or folder.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "> </td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Specified library name. *N is used when
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the subapplication field is 'COMMAND '. *SPC is used when the library is
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a folder.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Member</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Specified member name. *N is used when
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the member name is not applicable.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Format</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Not applicable for DDM.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Length</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Decimal</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>5,0</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Length of the next field.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Source Remote Location</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>Remote location unit name of source system
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(if SNA).</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Source System Name </strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>10</strong></td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 "><strong>System name of remote server. If this
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value is not available, this field contains '*N '.</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="14.814814814814813%" headers="d0e154 "><strong>Other</strong></td>
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<td align="left" valign="top" width="15.185185185185185%" headers="d0e157 "><strong>Character</strong></td>
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<td align="left" valign="top" width="14.629629629629628%" headers="d0e160 "><strong>2000</strong> </td>
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<td align="left" valign="top" width="55.37037037037037%" headers="d0e163 ">The use of this 2000 byte area depends on
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the request function. If it is SQLCNN, then the DRDA mapping should be used. For other
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functions, use the DDM mapping. <dl><dt class="dlterm">To use DDM:</dt>
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<dd> <dl><dt class="dlterm"></dt>
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<dd>The following varies, depending on the function. If OPEN is specified
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to open a file: <dl><dt class="dlterm">1</dt>
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<dd>Input request Char(1) 1=yes 0=no</dd>
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<dt class="dlterm">1</dt>
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<dd>Output request Char(1) 1=yes 0=no</dd>
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<dt class="dlterm">1</dt>
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<dd>Update request Char(1) 1=yes 0=no</dd>
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<dt class="dlterm">1</dt>
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<dd>Delete request Char(1) 1=yes 0=no</dd>
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</dl>
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</dd>
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<dt class="dlterm">12</dt>
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<dd>Alternative object name.</dd>
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<dt class="dlterm">63</dt>
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<dd>Alternative directory name.</dd>
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<dt class="dlterm">1921</dt>
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<dd>The command string if COMMAND is specified to submit a command.</dd>
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</dl>
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</dd>
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<dt class="dlterm">To use DRDA:</dt>
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<dd> <dl><dt class="dlterm">9</dt>
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<dd>Type definition name of DRDA application requester. Product ID of DRDA application
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requester.</dd>
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<dt class="dlterm">3</dt>
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<dd>Product code.</dd>
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<dt class="dlterm">2</dt>
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<dd>Version ID.</dd>
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<dt class="dlterm">2</dt>
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<dd>Release ID.</dd>
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<dt class="dlterm">1</dt>
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<dd>Modification level.</dd>
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<dt class="dlterm">1983</dt>
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<dd>Reserved </dd>
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</dl>
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</dd>
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</dl>
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</td>
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</tr>
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<tr><td colspan="4" align="left" valign="top" headers="d0e154 d0e157 d0e160 d0e163 "><div class="note"><span class="notetitle">Note:</span> <dl><dt class="dlterm">*N =</dt>
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<dd>Null value indicates a parameter position for which no value is being
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specified, allowing other parameters to follow it in positional form.</dd>
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</dl>
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</div>
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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>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbae5exitpgm.htm" title="Customers who use menu-level security, which is accomplished by restricting the user's access to functions on the server, are likely to have a large number of public files. Public files are those files to which the public has some or all authority. A user exit program allows you to restrict each DDM user's access to public files and to private files.">DDM server access control exit program for additional security</a></div>
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</div>
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</div>
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</body>
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</html>
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