329 lines
9.2 KiB
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329 lines
9.2 KiB
HTML
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>QsyVerifyValidationLstEntry()--Verify Validation List Entry API</title>
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<h2>QsyVerifyValidationLstEntry()--Verify Validation List Entry API</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax<br>
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<pre>
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#include <qsyvldl.h>
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int QsyVerifyValidationLstEntry
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(Qsy_Qual_Name_T *<em>Validation_Lst</em>,
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Qsy_Entry_ID_Info_T *<em>Entry_ID</em>,
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Qsy_Entry_Encr_Data_Info_T *<em>Encrypt_Data</em>);
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</pre>
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Service Program Name: Name QSYVLDL<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>QsyVerifyValidationLstEntry()</strong> function verifies an
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entry in a validation list object. It verifies the entry by finding the
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validation list object, then finding the entry that is specified in the
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<em>Entry_ID</em> parameter. To find an entry, there must be an exact match in
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the entry for the value that is specified in the <em>Entry_ID</em> parameter
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and the length of the entry ID. For example, an entry ID value of "SMITH" with
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a length of 5 would not find an entry where the entry ID is "SMITH " and the
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length is 7.</p>
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<p>If the entry is found, the data specified in the <em>Encrypt_Data</em>
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parameter is encrypted by the system and compared to the encrypted data that is
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stored for the entry. If the encrypted data fields do not match, then -2 is
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returned by the function.</p>
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<p>The verification of an entry should be done within the same process as the
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work that is being done on behalf of this entry ID so that there is
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accountability for the actions that are taken. Also, an entry ID should be
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verified just before the work is done on behalf of that entry ID, instead of
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verifying a set of entry IDs and then doing work on behalf of the different
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entry IDs.<br>
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</p>
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<h3>Authorities</h3>
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<dl>
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<dt><em>Validation List Object</em></dt>
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<dd>*USE</dd>
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<dt><em>Validation List Object Library</em></dt>
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<dd>*EXECUTE</dd>
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</dl>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong>Validation_Lst</strong></dt>
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<dd>(Input) A pointer to the qualified object name of the validation list that
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contains the entry to verify. The first 10 characters specify the validation
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list name, and the second 10 characters specify the library. You can use these
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special values for the library name:
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><em>*CURLIB</em></td>
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<td align="left" valign="top">The current library is used to locate the
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validation list. If there is no current library, QGPL (general purpose library)
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is used.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*LIBL</em></td>
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<td align="left" valign="top">The library list is used to locate the validation
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list.</td>
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</tr>
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</table>
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<br>
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<br>
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</dd>
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<dt><strong>Entry_ID</strong></dt>
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<dd>(Input)
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<p>A pointer to the entry ID information. The format of the Qsy_Entry_ID_Info_T
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structure is as follows:</p>
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<table cellpadding="5" border>
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<!-- cols="15 20 65" -->
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<tr>
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<td align="LEFT" valign="TOP">int</td>
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<td align="LEFT" valign="TOP">Entry_ID_Len</td>
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<td align="LEFT" valign="TOP">The number of bytes of data that is provided as
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the entry ID. Possible values are from 1 through 100.</td>
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</tr>
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<tr>
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<td align="LEFT" valign="TOP">unsigned int</td>
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<td align="LEFT" valign="TOP">Entry_ID_CCSID</td>
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<td align="LEFT" valign="TOP">An integer that represents the CCSID for the
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entry ID. Valid CCSID values are in the range 1 through 65535. This field is
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not used to verify the entry.</td>
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</tr>
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<tr>
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<td align="LEFT" valign="TOP">unsigned char</td>
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<td align="LEFT" valign="TOP">Entry_ID[100]</td>
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<td align="LEFT" valign="TOP">The data that is used to identify this entry in
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the validation list.</td>
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</tr>
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</table>
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<br>
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<br>
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</dd>
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<dt><strong>Encrypt_Data</strong></dt>
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<dd>(Input)
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<p>A pointer to the encrypted data information that is associated with the
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entry ID. The format of the Qsy_Entry_Encr_Data_Info_T structure is as
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follows:</p>
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<table border cellpadding="5">
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<!-- cols="15 20 65" -->
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<tr>
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<td align="LEFT" valign="TOP">int</td>
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<td align="LEFT" valign="TOP">Encr_Data_Len</td>
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<td align="LEFT" valign="TOP">The number of bytes of data to be encrypted and
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compared to the encrypted data in the validation list entry. Possible values
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are 1 through 600.</td>
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</tr>
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<tr>
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<td align="LEFT" valign="TOP">unsigned int</td>
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<td align="LEFT" valign="TOP">Encr_Data_CCSID</td>
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<td align="LEFT" valign="TOP">An integer that represents the CCSID for the data
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to encrypt. Valid CCSID values are in the range 0 through 65535. This value is
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not used to verify the entry.</td>
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</tr>
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<tr>
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<td align="LEFT" valign="TOP">unsigned char</td>
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<td align="LEFT" valign="TOP">Encr_Data[600]</td>
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<td align="LEFT" valign="TOP">The data to be encrypted and compared to the
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encrypted data that is found for the specified entry ID in the validation
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list.</td>
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</tr>
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</table>
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</dd>
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</dl>
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<br>
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<br>
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<h3>Return Value</h3>
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<table cellpadding="5">
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<!-- cols="5 95" -->
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<tr>
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<td align="left" valign="top"><em>0</em></td>
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<td align="left" valign="top">QsyVerifyValidationLstEntry() was
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successful.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>-1</em></td>
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<td align="left" valign="top">QsyVerifyValidationLstEntry() was not successful.
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<p>The <em>errno</em> global variable is set to indicate the error.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top" nowrap><em>-2</em></td>
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<td align="left" valign="top">QsyVerifyValidationLstEntry() was not successful
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because the encrypted data was incorrect.</td>
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</tr>
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</table>
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<br>
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<h3>Error Conditions</h3>
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<p>If <strong>QsyVerifyValidationLstEntry()</strong> is not successful,
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<em>errno</em> indicates one of the following errors:</p>
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<table cellpadding="5">
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<!-- cols="10 90" -->
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<tr>
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<td align="left" valign="top"><em>3401</em></td>
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<td align="left" valign="top">[EACCES]
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<p>The current user does not have *USE authority to the validation list object,
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or does not have *EXECUTE authority to the validation list object library.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3406</em></td>
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<td align="left" valign="top">[EAGAIN]
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<p>The validation list object is currently locked by another process.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3484</em></td>
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<td align="left" valign="top">[EDAMAGE]
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<p>The validation list object is damaged.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3021</em></td>
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<td align="left" valign="top">[EINVAL]
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<p>Parameter value is not valid.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3025</em></td>
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<td align="left" valign="top">[ENOENT]
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<p>The validation list object was not found.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3026</em></td>
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<td align="left" valign="top">[ENOREC]
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<p>Specified entry does not exist.</p>
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</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3474</em></td>
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<td align="left" valign="top">[EUNKNOWN]
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<p>Unknown system state. Check the job log for a CPF9872 message.</p>
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</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<p>The following example validates the entry for a user named FRED in the
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validation list object WEBUSRS.</p>
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<pre>
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#include <qsyvldl.h>
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main()
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{
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#define VLD_LST "WEBUSRS WEBLIB "
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Qsy_Entry_ID_Info_T entry_info;
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Qsy_Entry_Encr_Data_Info_T encrypt_data;
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entry_info.Entry_ID_Len = 4;
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strncpy(entry_info.Entry_ID,"FRED",entry_info.Entry_ID_Len);
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encrypt_data.Encr_Data_Len = 7;
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strncpy(encrypt_data.Encr_Data,"MSN1TJG",
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encrypt_data.Encr_Data_Len);
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if (0 != QsyVerifyValidationLstEntry((Qsy_Qual_Name_T *)&VLD_LST,
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&entry_info,
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&encrypt_data))
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perror("QsyVerifyValidationLstEntry()");
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}
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</pre>
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<br>
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<hr>
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API introduced: V4R1
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<hr>
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