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authormarha <marha@users.sourceforge.net>2010-03-29 17:08:02 +0000
committermarha <marha@users.sourceforge.net>2010-03-29 17:08:02 +0000
commit15272ab4ed1e6250412fccd48200ed9eae59608f (patch)
treea5996ea67966a778a16565f19dfc2e7c7f49b376 /openssl/doc/crypto/CMS_uncompress.pod
parent3827301b2ea5a45ac009c3bf9f08586ff40b8506 (diff)
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Updated to openssl 1.0.0
Diffstat (limited to 'openssl/doc/crypto/CMS_uncompress.pod')
-rw-r--r--openssl/doc/crypto/CMS_uncompress.pod54
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diff --git a/openssl/doc/crypto/CMS_uncompress.pod b/openssl/doc/crypto/CMS_uncompress.pod
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+=pod
+
+=head1 NAME
+
+ CMS_uncompress - uncompress a CMS CompressedData structure
+
+=head1 SYNOPSIS
+
+ #include <openssl/cms.h>
+
+ int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags);
+
+=head1 DESCRIPTION
+
+CMS_uncompress() extracts and uncompresses the content from a CMS
+CompressedData structure B<cms>. B<data> is a BIO to write the content to and
+B<flags> is an optional set of flags.
+
+The B<dcont> parameter is used in the rare case where the compressed content
+is detached. It will normally be set to NULL.
+
+=head1 NOTES
+
+The only currently supported compression algorithm is zlib: if the structure
+indicates the use of any other algorithm an error is returned.
+
+If zlib support is not compiled into OpenSSL then CMS_uncompress() will always
+return an error.
+
+The following flags can be passed in the B<flags> parameter.
+
+If the B<CMS_TEXT> flag is set MIME headers for type B<text/plain> are deleted
+from the content. If the content is not of type B<text/plain> then an error is
+returned.
+
+=head1 RETURN VALUES
+
+CMS_uncompress() returns either 1 for success or 0 for failure. The error can
+be obtained from ERR_get_error(3)
+
+=head1 BUGS
+
+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().
+
+=head1 SEE ALSO
+
+L<ERR_get_error(3)|ERR_get_error(3)>, L<CMS_compress(3)|CMS_compress(3)>
+
+=head1 HISTORY
+
+CMS_uncompress() was added to OpenSSL 0.9.8
+
+=cut