SMIME_write_CMS - convert CMS structure to S/MIME format
int SMIME_write_CMS(BIO *out, CMS_ContentInfo *cms, BIO *data, int flags);
adds the appropriate MIME headers to a CMS structure to
produce an S/MIME message.
is the BIO to write the data to. cms
is the appropriate
structure. If streaming is enabled then the content
must be supplied in the data
is an optional set
The following flags can be passed in the flags
is set then cleartext signing will be used, this option
only makes sense for SignedData where CMS_DETACHED
is also set when
If the CMS_TEXT
flag is set MIME headers for type text/plain
added to the content, this only makes sense if CMS_DETACHED
If the CMS_STREAM
flag is set streaming is performed. This flag should
only be set if CMS_STREAM
was also set in the previous call to a
CMS_ContentInfo creation function.
If cleartext signing is being used and CMS_STREAM
not set then the data
must be read twice: once to compute the signature in CMS_sign()
once to output the S/MIME message.
If streaming is performed the content is output in BER format using indefinite
length constructed encoding except in the case of signed data with detached
content where the content is absent and DER format is used.
always base64 encodes CMS structures, there should be
an option to disable this.
returns 1 for success or 0 for failure.
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