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<html><head>
<title>FBB::IBase64Streambuf</title>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1>FBB::IBase64Streambuf</h1>
<h2>libbobcat-dev_3.19.01-x.tar.gz</h2>
<h2>2005-2013</h2>

<html><head>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1></h1>

<html><head>
<title>FBB::IBase64Streambuf(3bobcat)</title>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1>FBB::IBase64Streambuf(3bobcat)</h1>
<h2>libbobcat-dev_3.19.01-x.tar.gz Base64 converting Stream Buffer</h2>
<h2>2005-2013</h2>


<p>
<h2>NAME</h2>FBB::IBase64Streambuf - Input Filtering stream buffer doing base64 conversion
<p>
<h2>SYNOPSIS</h2>
    <strong>#include &lt;bobcat/ibase64streambuf&gt;</strong><br>
    Linking option: <em>-lbobcat</em> 
<p>
<h2>DESCRIPTION</h2>
    The information made available by <strong>IBase64Streambuf</strong> objects has been
subject to base64 encoding or decoding. The information to be converted is
made available to <strong>IBase64Streambuf</strong> object via <em>std::istream</em> objects.
<p>
The <em>class IBase64Streambuf</em> is a class template, using a
<em>FBB::CryptType</em> template non-type parameter. Objects of the class
<em>FBB::IBase64Streambuf&lt;FBB::ENCRYPT&gt;</em> base64 encode the information they
receive, objects of the class <em>FBB::IBase64Streambuf&lt;FBB::DECRYPT&gt;</em> base64
decode the information they receive. See also section <strong>ENUMERATION</strong> below.
<p>
<h2>NAMESPACE</h2>
    <strong>FBB</strong><br>
    All constructors, members, operators and manipulators, mentioned in this
man-page, are defined in the namespace <strong>FBB</strong>.
<p>
<h2>INHERITS FROM</h2>
    <strong>FBB::IFilterStreambuf</strong>
<p>
<h2>MEMBER FUNCTIONS</h2>
     All members of <strong>FBB::IFilterStreambuf</strong> are available, as
<strong>IBase64Streambuf</strong> inherits from this class.
<p>
Overloaded move and/or copy assignment operators are not available.
<p>
<h2>ENUMERATION</h2>
<p>
<strong>IBase64Streambuf</strong> objects either base64 encode or decode
information. <strong>IBase64Streambuf</strong> objects of the class
<strong>FBB::IBase64Streambuf&lt;FBB::ENCRYPT&gt;</strong> base64 encode the data they receive,
<strong>IBase64Streambuf</strong> objects of the class
<strong>FBB::IBase64Streambuf&lt;FBB::DECRYPT&gt;</strong> base64 decode the data they receive.
<p>
The values <em>ENCRYPT</em> and <em>DECRYPT</em> are defined in the <em>enum CryptType</em>,
which is defined in the <em>FBB</em> namespace.
<p>
<h2>CONSTRUCTOR</h2>
    <ul>
    <li> <strong>IBase64Streambuf&lt;CryptType&gt;(std::istream &amp;in, size_t bufSize = 1000)</strong>:<br>
        This constructor initializes the streambuf.
<p>
- <em>IBase64Streambuf&lt;ENCRYPT&gt;</em> objects perform base64 encoding;<br>
    - <em>IBase64Streambuf&lt;DECRYPT&gt;</em> objects perform base64 decoding;<br>
    - <em>IBase64Streambuf&lt;CryptType&gt;</em> objects obtain the bytes to encode or
decode from <em>std::istream &amp;in</em>;<br>
    - The <em>IFilterStreambuf</em> base class is initialized with a buffer of
size <em>bufSize</em>, using a lower bound of 100.
        </ul>
    )
    Copy- and move constructors are not available.
<p>
<h2>EXAMPLE</h2>
<p>
The example shows the construction of <em>IBase64Streambuf&lt;ENCRYPT&gt;</em>
objects <em>encode</em> which are used to initialize a <em>std::istream</em> object. The
information read from this <em>istream</em> is base64 encoded. 
<p>
<em>IBase64Streambuf&lt;DECRYPT&gt;</em> objects (<em>decode</em> reads base64 encoded
information from <em>std::istream</em> objects and decodes it again. 
<p>
The <em>std::istream din</em> object is initialized with the
<em>IBase64Streambuf&lt;DECRYPT&gt;</em> object, and its contents is sent to
<em>std::cout</em>. The information that is presented at <em>std::cin</em> and that
appears at <em>std::cout</em> should be identical.
<p>
<pre>
#include &lt;iostream&gt;
#include &lt;istream&gt;

#include &lt;bobcat/ibase64streambuf&gt;

using namespace std;
using namespace FBB;

int main(int argc, char **argv)
{
    switch (argv[1][0])
    {
        case 'e':
        {
            IBase64Streambuf&lt;ENCRYPT&gt; encode(cin);
            istream ein(&amp;encode);
            cout &lt;&lt; ein.rdbuf();
        }
        break;

        case 'd':
        {
            IBase64Streambuf&lt;DECRYPT&gt; decode(cin);
            istream din(&amp;decode);
            cout &lt;&lt; din.rdbuf();
        }
        break;
    
        case 'b':
        {
            IBase64Streambuf&lt;ENCRYPT&gt; encode(cin);
            istream ein(&amp;encode);

            IBase64Streambuf&lt;DECRYPT&gt; decode(ein);
            istream din(&amp;decode);
            cout &lt;&lt; din.rdbuf();
        }
        break;

        default:
            cout &lt;&lt; "Usage: " &lt;&lt; argv[0] &lt;&lt; " [edb] &lt; infile &gt; outfile\n"
                    "to base64 -e-ncode, -d-ecode or -b-oth\n";
        break;
    }
}

</pre>

<p>
<h2>FILES</h2>
    <em>bobcat/ibase64streambuf</em> - defines the class interface
<p>
<h2>SEE ALSO</h2>
    <strong>bobcat</strong>(7), <strong>isymcryptstreambuf</strong>(3bobcat),
<strong>ibase64stream</strong>(3bobcat), <strong>ifilterstreambuf</strong>(3bobcat),
<strong>ofilterstreambuf</strong>(3bobcat), <strong>std::streambuf</strong>.
<p>
<h2>BUGS</h2>
    None reported.
<p>

<h2>DISTRIBUTION FILES</h2>
    <ul>
    <li> <em>bobcat_3.19.01-x.dsc</em>: detached signature;
    <li> <em>bobcat_3.19.01-x.tar.gz</em>: source archive;
    <li> <em>bobcat_3.19.01-x_i386.changes</em>: change log;
    <li> <em>libbobcat1_3.19.01-x_*.deb</em>: debian package holding the
            libraries;
    <li> <em>libbobcat1-dev_3.19.01-x_*.deb</em>: debian package holding the
            libraries, headers and manual pages;
    <li> <em>http://sourceforge.net/projects/bobcat</em>: public archive location;
    </ul>
<p>
<h2>BOBCAT</h2>
    Bobcat is an acronym of `Brokken's Own Base Classes And Templates'.
<p>
<h2>COPYRIGHT</h2>
    This is free software, distributed under the terms of the 
    GNU General Public License (GPL).
<p>
<h2>AUTHOR</h2>
    Frank B. Brokken (<strong>f.b.brokken@rug.nl</strong>).
<p>

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