ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/eimerr2string.htm

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<title>eimErr2String()--Convert EimRC into an Error Message</title>
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<h2>eimErr2String()--Convert EimRC
into an Error Message</h2>
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&nbsp;&nbsp;Syntax
<pre>
#include &lt;eim.h&gt;
char * eimErr2String(EimRC * <em>eimrc</em>)
</pre>
&nbsp;&nbsp;Service Program Name: QSYS/QSYEIM<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: Yes<br>
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<p>The <strong>eimErr2String()</strong> function converts the EIM return code
structure returned by an EIM function into a NULL-terminated error message
string. free() should be used to free the space allocated for the error message
string.</p>
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<h3>Authorities</h3>
<p>No authorization is required.</p>
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<h3>Parameters</h3>
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<!-- eimrc -->
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<dt><strong>eimrc</strong> (Input)</dt>
<dd>The structure that contains error code information from a previous call to
an EIM API. For the format of the structure, see <a href="eimrc.htm">EimRC--EIM
Return Code Parameter</a>.<br>
<br>
</dd>
</dl>
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<h3>Return Value</h3>
<p>If successful, the return value is the address of the error message. The
caller is responsible for freeing the message.</p>
<p>If unsuccessful, eimErr2String returns a NULL pointer. The <em>errno</em>
global variable is set to indicate the error. The errno may come from catopen,
catget, or catclose or one of the following values.</p>
<dl><!-- ============================================================== -->
<!-- EBADDATA -->
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<dt><strong>EBADDATA</strong></dt>
<dd>eimrc is not valid.<br>
<br>
</dd>
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<dt><strong>ECONVERT</strong></dt>
<dd>Data conversion error.<br>
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</dd>
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<!-- EINVAL -->
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<dt><strong>EINVAL</strong></dt>
<dd>Input parameter was not valid.<br>
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</dd>
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<!-- ENOMEM -->
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<dt><strong>ENOMEM</strong></dt>
<dd>Unable to allocate required space.<br>
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</dd>
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<!-- EUNKNOWN -->
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<dt><strong>EUNKNOWN</strong></dt>
<dd>Unexpected exception.</dd>
</dl>
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<h3>Related Information</h3>
<ul class="noindent">
<li><a href="eimrc.htm">eimRC()</a> --EIM Return Code Parameter<br>
<br>
</li>
</ul>
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<h3>Example</h3>
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
for information pertaining to code examples.</p>
<p>The following example converts an EimRC into an error message and prints
it.</p>
<pre>
#include &lt;eim.h&gt;
#include &lt;stdio.h&gt;
#include &lt;errno.h&gt;
int main(int argc, char *argv[])
{
int rc;
EimRC * err;
char * errMessage;
<em>/* Get EimRC from input arg. */</em>
err = (EimRC *)argv[1];
<em>/* Get error message */</em>
if (NULL == (errMessage = eimErr2String(err)))
{
printf("eimErr2String error = %s", strerror(errno));
return -1;
}
<em>/* Print the message */</em>
printf("%s", errMessage);
free(errMessage);
return 0;
}
</pre>
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<hr>
API introduced: V5R2
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