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<title>FBB::IBase64Streambuf</title>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
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<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">
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<body text="#27408B" bgcolor="#FFFAF0">
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<h1></h1>
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<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 <bobcat/ibase64streambuf></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<FBB::ENCRYPT></em> base64 encode the information they
receive, objects of the class <em>FBB::IBase64Streambuf<FBB::DECRYPT></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<FBB::ENCRYPT></strong> base64 encode the data they receive,
<strong>IBase64Streambuf</strong> objects of the class
<strong>FBB::IBase64Streambuf<FBB::DECRYPT></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<CryptType>(std::istream &in, size_t bufSize = 1000)</strong>:<br>
This constructor initializes the streambuf.
<p>
- <em>IBase64Streambuf<ENCRYPT></em> objects perform base64 encoding;<br>
- <em>IBase64Streambuf<DECRYPT></em> objects perform base64 decoding;<br>
- <em>IBase64Streambuf<CryptType></em> objects obtain the bytes to encode or
decode from <em>std::istream &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<ENCRYPT></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<DECRYPT></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<DECRYPT></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 <iostream>
#include <istream>
#include <bobcat/ibase64streambuf>
using namespace std;
using namespace FBB;
int main(int argc, char **argv)
{
switch (argv[1][0])
{
case 'e':
{
IBase64Streambuf<ENCRYPT> encode(cin);
istream ein(&encode);
cout << ein.rdbuf();
}
break;
case 'd':
{
IBase64Streambuf<DECRYPT> decode(cin);
istream din(&decode);
cout << din.rdbuf();
}
break;
case 'b':
{
IBase64Streambuf<ENCRYPT> encode(cin);
istream ein(&encode);
IBase64Streambuf<DECRYPT> decode(ein);
istream din(&decode);
cout << din.rdbuf();
}
break;
default:
cout << "Usage: " << argv[0] << " [edb] < infile > 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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