SMIME_write_PKCS7Section: OpenSSL (3)
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NAMESMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format.
SYNOPSISint SMIME_write_PKCS7(BIO *out, PKCS7 *p7, BIO *data, int flags);
DESCRIPTIONSMIME_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.
NOTESThe 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.
BUGSSMIME_write_PKCS7() always base64 encodes PKCS#7 structures, there should be an option to disable this.
RETURN VALUESSMIME_write_PKCS7() returns 1 for success or 0 for failure.
SEE ALSOERR_get_error(3), PKCS7_sign(3), PKCS7_verify(3), PKCS7_encrypt(3) PKCS7_decrypt(3)
HISTORYSMIME_write_PKCS7() was added to OpenSSL 0.9.5