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+$PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.147 2004/03/11 02:39:10 momjian Exp $
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<chapter id="libpq">
<literal>crypt()</literal> operating system function, which is often
not thread-safe.<indexterm><primary>crypt</><secondary>thread
safety</></> It is better to use the <literal>md5</literal> method,
-which is thread-safe on all platforms.
+which is thread-safe on all platforms. <application>SSL</> connections
+and <application>kerberos</> authentication are also not thread-safe.
</para>
<para>
before the first database connection if no custom <literal>SIGPIPE</>
handler has been installed previously. This handler uses thread-local
storage to determine if a <literal>SIGPIPE</> signal has been generated
-by an internal <function>send()</>. If an application wants to install
+by a libpq <function>send()</>. If an application wants to install
its own <literal>SIGPIPE</> signal handler, it should call
<function>PQinSend()</> to determine if it should ignore the
<literal>SIGPIPE</> signal. This function is available in both