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Re: [PATCHES] IPv6 patch doesn't work fine

From: Barry Lind <blind(at)xythos(dot)com>
To: Kris Jurka <books(at)ejurka(dot)com>
Cc: Kurt Roeckx <Q(at)ping(dot)be>, Manuel Gil Pérez <manuel(at)dif(dot)um(dot)es>,pgsql-patches(at)postgresql(dot)org, pgsql-jdbc(at)postgresql(dot)org
Subject: Re: [PATCHES] IPv6 patch doesn't work fine
Date: 2003-06-30 16:41:17
Message-ID: 3F00682D.1010203@xythos.com (view raw or flat)
Thread:
Lists: pgsql-jdbcpgsql-patches
Patch applied.

thanks,
--Barry


Kris Jurka wrote:
> 
> On Sat, 28 Jun 2003, Kurt Roeckx wrote:
> 
> 
>>On Thu, Jun 26, 2003 at 08:02:01AM -0400, Kris Jurka wrote:
>>
>>>
>>>On Thu, 26 Jun 2003, Manuel Gil [iso-8859-1] P?rez wrote:
>>>
>>>
>>>>Hi all.
>>>>
>>>>I have a Java application that it connects to the PostgreSQL database with
>>>>IPv6 patch installed.
>>>>
>>>
>>>What exactly do you have for the URL in the first argument to
>>>getConnection?  If you have a direct IPv6 address like
>>>jdbc:postgresql://::1 it will not work at the moment because it tries to
>>>parse the url using the colon as a delimiter which works fine for IPv4
>>>addresses, but not IPv6 see org.postgresql.Driver#parseURL for more info.
>>>
>>>What happens if you are using a name that resolves to an IPv6 address?
>>>You're probably the first person to actually try this.  I will look into
>>>this further, but it may take me a while to get IPv6 up and running on my
>>>machine.
>>
>>Did you get it working yet?
>>
>>
>>Kurt
>>
> 
> 
> The following patch allows you to connect using an IPv6 address by
> enclosing it in square brackets.
> 
> jdbc:postgresql://[::1]:5432/dbname
> 
> Additionally some minor cleanup to JDBC docs, adding <acronym> tags,
> mentioning JDBC 3 support, and cross referencing the installation
> instructions.
> 
> Kris Jurka
> 
> 
> 
> ------------------------------------------------------------------------
> 
> Index: src/interfaces/jdbc/org/postgresql/Driver.java.in
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/src/interfaces/jdbc/org/postgresql/Driver.java.in,v
> retrieving revision 1.30
> diff -c -r1.30 Driver.java.in
> *** src/interfaces/jdbc/org/postgresql/Driver.java.in	29 May 2003 04:39:51 -0000	1.30
> --- src/interfaces/jdbc/org/postgresql/Driver.java.in	29 Jun 2003 11:15:53 -0000
> ***************
> *** 272,277 ****
> --- 272,288 ----
>   			l_urlArgs = url.substring(l_qPos+1);
>   		}
>   
> + 		// look for an IPv6 address that is enclosed by []
> + 		// the upcoming parsing that uses colons as identifiers can't handle
> + 		// the colons in an IPv6 address.
> + 		int ipv6start = l_urlServer.indexOf("[");
> + 		int ipv6end = l_urlServer.indexOf("]");
> + 		String ipv6address = null;
> + 		if (ipv6start != -1 && ipv6end > ipv6start) {
> + 			ipv6address = l_urlServer.substring(ipv6start+1,ipv6end);
> + 			l_urlServer = l_urlServer.substring(0,ipv6start)+"ipv6host"+l_urlServer.substring(ipv6end+1);
> + 		}
> + 
>   		//parse the server part of the url
>   		StringTokenizer st = new StringTokenizer(l_urlServer, ":/", true);
>   		for (int count = 0; (st.hasMoreTokens()); count++)
> ***************
> *** 345,350 ****
> --- 356,365 ----
>   				}
>   			}
>   		}
> + 
> + 		// if we extracted an IPv6 address out earlier put it back
> + 		if (ipv6address != null)
> + 			urlProps.put("PGHOST",ipv6address);
>   
>   		//parse the args part of the url
>   		StringTokenizer qst = new StringTokenizer(l_urlArgs, "&");
> Index: doc/src/sgml/jdbc.sgml
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/doc/src/sgml/jdbc.sgml,v
> retrieving revision 1.44
> diff -c -r1.44 jdbc.sgml
> *** doc/src/sgml/jdbc.sgml	7 Apr 2003 01:29:25 -0000	1.44
> --- doc/src/sgml/jdbc.sgml	29 Jun 2003 11:15:54 -0000
> ***************
> *** 33,39 ****
>   
>     <para>
>      This section describes the steps you need to take before you can
> !    write or run programs that use the JDBC interface.
>     </para>
>   
>     <sect2 id="jdbc-build">
> --- 33,39 ----
>   
>     <para>
>      This section describes the steps you need to take before you can
> !    write or run programs that use the <acronym>JDBC</> interface.
>     </para>
>   
>     <sect2 id="jdbc-build">
> ***************
> *** 49,63 ****
>      <para>
>       Alternatively you can build the driver from source, but you should
>       only need to do this if you are making changes to the source code.
> !     For details, refer to the <productname>PostgreSQL</> installation
> !     instructions.  After installation, the driver should be found in
>       <filename><replaceable>PREFIX</>/share/java/postgresql.jar</filename>.
>       The resulting driver will be built for the version of Java you are
>       running.  If you build with a 1.1 <acronym>JDK</> you will build a
> !     version that supports the JDBC 1 specification, if you build with
> !     a Java 2 <acronym>JDK</> (e.g., <acronym>JDK</> 1.2 or
> !     <acronym>JDK</> 1.3) you will build a version that supports the
> !     JDBC 2 specification.
>      </para>
>     </sect2>
>   
> --- 49,65 ----
>      <para>
>       Alternatively you can build the driver from source, but you should
>       only need to do this if you are making changes to the source code.
> !     For details, refer to the <productname>PostgreSQL</>
> !     <link linkend="installation">installation instructions</link>.
> !     After installation, the driver should be found in
>       <filename><replaceable>PREFIX</>/share/java/postgresql.jar</filename>.
>       The resulting driver will be built for the version of Java you are
>       running.  If you build with a 1.1 <acronym>JDK</> you will build a
> !     version that supports the <acronym>JDBC</> 1 specification, if you build
> !     with a 1.2 or 1.3 <acronym>JDK</> you will build a version that supports
> !     the <acronym>JDBC</> 2 specification, and finally if you build with a
> !     1.4 <acronym>JDK</acronym> you will build a version that supports the
> !     <acronym>JDBC</> 3 specification.
>      </para>
>     </sect2>
>   
> ***************
> *** 67,78 ****
>      <para>
>       To use the driver, the JAR archive (named
>       <filename>postgresql.jar</filename> if you built from source, otherwise
> !     it will likely be named <filename>jdbc&majorversion;-1.1.jar</filename> or 
> !     <filename>jdbc&majorversion;-1.2.jar</filename> for the JDBC 1 and JDBC 2 versions
> !     respectively)
> !     needs to be included in the
> !     class path, either by putting it in the <envar>CLASSPATH</envar>
> !     environment variable, or by using flags on the
>       <command>java</command> command line.
>      </para>
>   
> --- 69,80 ----
>      <para>
>       To use the driver, the JAR archive (named
>       <filename>postgresql.jar</filename> if you built from source, otherwise
> !     it will likely be named <filename>pg&majorversion;jdbc1.jar</filename>,
> !     <filename>pg&majorversion;jdbc2.jar</filename>, or
> !     <filename>pg&majorversion;jdbc3.jar</filename> for the <acronym>JDBC</> 1,
> !     <acronym>JDBC</> 2, and <acronym>JDBC</> 3 versions respectively)
> !     needs to be included in the class path, either by putting it in the
> !     <envar>CLASSPATH</envar> environment variable, or by using flags on the
>       <command>java</command> command line.
>      </para>
>   
> ***************
> *** 81,87 ****
>       <acronym>JDBC</acronym> driver to access a database, and that
>       application is installed as
>       <filename>/usr/local/lib/myapp.jar</filename>.  The PostgreSQL
> !     JDBC driver installed as
>       <filename>/usr/local/pgsql/share/java/postgresql.jar</>.  To run
>       the application, we would use:
>   <programlisting>
> --- 83,89 ----
>       <acronym>JDBC</acronym> driver to access a database, and that
>       application is installed as
>       <filename>/usr/local/lib/myapp.jar</filename>.  The PostgreSQL
> !     <acronym>JDBC</> driver installed as
>       <filename>/usr/local/pgsql/share/java/postgresql.jar</>.  To run
>       the application, we would use:
>   <programlisting>
> ***************
> *** 113,120 ****
>       Also, the client authentication setup in the
>       <filename>pg_hba.conf</filename> file may need to be configured.
>       Refer to <xref linkend="client-authentication"> for details.  The
> !     <acronym>JDBC</acronym> driver supports the trust, ident,
> !     password, md5, and crypt authentication methods.
>      </para>
>     </sect2>
>    </sect1>
> --- 115,123 ----
>       Also, the client authentication setup in the
>       <filename>pg_hba.conf</filename> file may need to be configured.
>       Refer to <xref linkend="client-authentication"> for details.  The
> !     <acronym>JDBC</acronym> driver supports the <literal>trust</>,
> !     <literal>ident</>, <literal>password</>, <literal>md5</>, and
> !     <literal>crypt</> authentication methods.
>      </para>
>     </sect2>
>    </sect1>
> ***************
> *** 123,130 ****
>     <title>Initializing the Driver</title>
>   
>     <para>
> !    This section describes how to load and initialize the JDBC driver
> !    in your programs.
>     </para>
>   
>     <sect2 id="jdbc-import">
> --- 126,133 ----
>     <title>Initializing the Driver</title>
>   
>     <para>
> !    This section describes how to load and initialize the <acronym>JDBC</>
> !    driver in your programs.
>     </para>
>   
>     <sect2 id="jdbc-import">
> ***************
> *** 252,258 ****
>         </term>
>         <listitem>
>          <para>
> !         The host name of the server. Defaults to <literal>localhost</literal>.
>          </para>
>         </listitem>
>        </varlistentry>
> --- 255,264 ----
>         </term>
>         <listitem>
>          <para>
> !         The host name of the server. Defaults to <literal>localhost</literal>.  To specify an IPv6 address your must enclose the <replaceable class="parameter">host</replaceable> parameter with square brackets, for example:
> ! <programlisting>
> ! jdbc:postgresql://[::1]:5740/accounting
> ! </programlisting>
>          </para>
>         </listitem>
>        </varlistentry>
> ***************
> *** 451,466 ****
>          </para>
>         </listitem>
>   
> -       <listitem>
> -        <para>
> -         <classname>ResultSet</classname> is currently read only.
> -         You can not update data through the <classname>ResultSet</classname>.
> -         If you want to update data you need to do it the normal way
> -         by using the <acronym>SQL</acronym> statement <command>UPDATE</command>.  This is 
> -         in conformance with the <acronym>JDBC</acronym> specification 
> -         which does not require drivers to provide updatable result sets.
> -        </para>
> -       </listitem>
>        </itemizedlist>
>       </para>
>      </sect2>
> --- 457,462 ----
> ***************
> *** 606,616 ****
>   
>     <para>
>      <xref linkend="jdbc-binary-data-example"> contains some examples on
> !    how to process binary data using the PostgreSQL JDBC driver.
>     </para>
>   
>     <example id="jdbc-binary-data-example">
> !    <title>Processing Binary Data in JDBC</title>
>   
>      <para>
>       For example, suppose you have a table containing the file names of
> --- 602,612 ----
>   
>     <para>
>      <xref linkend="jdbc-binary-data-example"> contains some examples on
> !    how to process binary data using the PostgreSQL <acronym>JDBC</> driver.
>     </para>
>   
>     <example id="jdbc-binary-data-example">
> !    <title>Processing Binary Data in <acronym>JDBC</></title>
>   
>      <para>
>       For example, suppose you have a table containing the file names of
> ***************
> *** 2490,2501 ****
>     <title>Connection Pools and Data Sources</title>
>   
>     <para>
> !     JDBC 2 introduced standard connection pooling features in an
> !     add-on API known as the <acronym>JDBC</acronym> 2.0 Optional
>       Package (also known as the <acronym>JDBC</acronym> 2.0
>       Standard Extension).  These features have since been included in
> !     the core JDBC 3 API.  The <productname>PostgreSQL</productname>
> !     <acronym>JDBC</acronym> drivers support these features if it has been compiled with
>       <acronym>JDK</acronym> 1.3.x in combination with the
>       <acronym>JDBC</acronym> 2.0 Optional Package
>       (<acronym>JDBC</acronym> 2), or with <acronym>JDK</acronym> 1.4 or higher
> --- 2486,2498 ----
>     <title>Connection Pools and Data Sources</title>
>   
>     <para>
> !     <acronym>JDBC</> 2 introduced standard connection pooling features in an
> !     add-on <acronym>API</> known as the <acronym>JDBC</acronym> 2.0 Optional
>       Package (also known as the <acronym>JDBC</acronym> 2.0
>       Standard Extension).  These features have since been included in
> !     the core <acronym>JDBC</> 3 <acronym>API</>.  The
> !     <productname>PostgreSQL</productname> <acronym>JDBC</acronym> drivers
> !     support these features if it has been compiled with
>       <acronym>JDK</acronym> 1.3.x in combination with the
>       <acronym>JDBC</acronym> 2.0 Optional Package
>       (<acronym>JDBC</acronym> 2), or with <acronym>JDK</acronym> 1.4 or higher
> ***************
> *** 2510,2516 ****
>      <title>Overview</title>
>   
>       <para>
> !      The <acronym>JDBC</acronym> API provides a client
>        and a server interface for connection pooling.  The client
>        interface is <literal>javax.sql.DataSource</literal>,
>        which is what application code will typically use to
> --- 2507,2513 ----
>      <title>Overview</title>
>   
>       <para>
> !      The <acronym>JDBC</acronym> <acronym>API</> provides a client
>        and a server interface for connection pooling.  The client
>        interface is <literal>javax.sql.DataSource</literal>,
>        which is what application code will typically use to
> 
> 
> ------------------------------------------------------------------------
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 8: explain analyze is your friend



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