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SMIME_write_PKCS7(3)		    OpenSSL		  SMIME_write_PKCS7(3)

NAME
       SMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format.

SYNOPSIS
       int SMIME_write_PKCS7(BIO *out, PKCS7 *p7, BIO *data, int flags);

DESCRIPTION
       SMIME_write_PKCS7() adds the appropriate MIME headers to a PKCS#7
       structure to produce an S/MIME message.

       out is the BIO to write the data to. p7 is the appropriate PKCS7
       structure. If cleartext signing (multipart/signed) is being used then
       the signed data must be supplied in the data argument. flags is an
       optional set of flags.

NOTES
       The following flags can be passed in the flags parameter.

       If PKCS7_DETACHED is set then cleartext signing will be used, this
       option only makes sense for signedData where PKCS7_DETACHED is also set
       when PKCS7_sign() is also called.

       If the PKCS7_TEXT flag is set MIME headers for type text/plain are
       added to the content, this only makes sense if PKCS7_DETACHED is also
       set.

       If the PKCS7_PARTSIGN flag is set the signed data is finalized and
       output along with the content. This flag should only be set if
       PKCS7_DETACHED is also set and the previous call to PKCS7_sign() also
       set these flags.

       If cleartext signing is being used and PKCS7_PARTSIGN not set then the
       data must be read twice: once to compute the signature in PKCS7_sign()
       and once to output the S/MIME message.

BUGS
       SMIME_write_PKCS7() always base64 encodes PKCS#7 structures, there
       should be an option to disable this.

RETURN VALUES
       SMIME_write_PKCS7() returns 1 for success or 0 for failure.

SEE ALSO
       ERR_get_error(3), PKCS7_sign(3), PKCS7_verify(3), PKCS7_encrypt(3)
       PKCS7_decrypt(3)

HISTORY
       SMIME_write_PKCS7() was added to OpenSSL 0.9.5

0.9.8k				  2003-02-15		  SMIME_write_PKCS7(3)

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