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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>CMS_uncompress</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <ul id="index"> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#NOTES">NOTES</a></li> <li><a href="#RETURN-VALUES">RETURN VALUES</a></li> <li><a href="#BUGS">BUGS</a></li> <li><a href="#SEE-ALSO">SEE ALSO</a></li> <li><a href="#COPYRIGHT">COPYRIGHT</a></li> </ul> <h1 id="NAME">NAME</h1> <p>CMS_uncompress - uncompress a CMS CompressedData structure</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #include <openssl/cms.h> int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags);</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>CMS_uncompress() extracts and uncompresses the content from a CMS CompressedData structure <b>cms</b>. <b>data</b> is a BIO to write the content to and <b>flags</b> is an optional set of flags.</p> <p>The <b>dcont</b> parameter is used in the rare case where the compressed content is detached. It will normally be set to NULL.</p> <h1 id="NOTES">NOTES</h1> <p>The only currently supported compression algorithm is zlib: if the structure indicates the use of any other algorithm an error is returned.</p> <p>If zlib support is not compiled into OpenSSL then CMS_uncompress() will always return an error.</p> <p>The following flags can be passed in the <b>flags</b> parameter.</p> <p>If the <b>CMS_TEXT</b> flag is set MIME headers for type <b>text/plain</b> are deleted from the content. If the content is not of type <b>text/plain</b> then an error is returned.</p> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>CMS_uncompress() returns either 1 for success or 0 for failure. The error can be obtained from ERR_get_error(3)</p> <h1 id="BUGS">BUGS</h1> <p>The lack of single pass processing and the need to hold all data in memory as mentioned in CMS_verify() also applies to CMS_decompress().</p> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man3/ERR_get_error.html">ERR_get_error(3)</a>, <a href="../man3/CMS_compress.html">CMS_compress(3)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.</p> <p>Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p> </body> </html>