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<h3>DB_ENV->set_errfile</h3>
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<h3><pre>
#include <db.h>
<p>
void
DB_ENV->set_errfile(DB_ENV *dbenv, FILE *errfile);
<p>
void
DB_ENV->get_errfile(DB_ENV *dbenv, FILE **errfilep);
</pre></h3>
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<h3>Description: DB_ENV->set_errfile</h3>
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When an error occurs in the Berkeley DB library, a Berkeley DB error or an error
return value is returned by the interface. In some cases, however,
the <b>errno</b> value may be insufficient to completely describe
the cause of the error especially during initial application debugging.
<p>The DB_ENV->set_errfile and <a href="../../db42-devel-4.2.52/api_c/db_set_errfile.html">DB->set_errfile</a> methods are used to
enhance the mechanism for reporting error messages to the application
by setting a C library FILE * to be used for displaying additional Berkeley DB
error messages. In some cases, when an error occurs, Berkeley DB will output
an additional error message to the specified file reference.</p>
<p>The error message will consist of the prefix string and a colon
("<b>:</b>") (if a prefix string was previously specified using
<a href="../../db42-devel-4.2.52/api_c/db_set_errpfx.html">DB->set_errpfx</a> or <a href="../../db42-devel-4.2.52/api_c/env_set_errpfx.html">DB_ENV->set_errpfx</a>), an error string, and
a trailing <newline> character.</p>
<p>This error logging enhancement does not slow performance or significantly
increase application size, and may be run during normal operation as well
as during application debugging.</p>
<p>The DB_ENV->set_errfile method may be called at any time during the life of the
application.</p>
<h3>Parameters</h3>
<p><dl compact>
<p><dt><b>errfile</b><dd>
The <b>errfile</b> parameter is a C library FILE * to be used for
displaying additional Berkeley DB error information.
</dl>
<hr size=1 noshade>
<h3>Description: DB_ENV->get_errfile</h3>
<p>The DB_ENV->get_errfile method returns the FILE *.</p>
<p>The DB_ENV->get_errfile method may be called at any time during the life of the
application.</p>
<p>The DB_ENV->get_errfile method
returns a non-zero error value on failure
and 0 on success.
</p>
<h3>Parameters</h3>
<p><dl compact>
<p><dt><b>errfilep</b><dd>
The DB_ENV->get_errfile method returns the
FILE * in <b>errfilep</b>.
</dl>
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<h3>Class</h3>
<a href="../../db42-devel-4.2.52/api_c/env_class.html">DB_ENV</a>
<h3>See Also</h3>
<a href="../../db42-devel-4.2.52/api_c/env_list.html">Database Environments and Related Methods</a>
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