SMIME_write_PKCS7.3 revision 162915
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Title "SMIME_write_PKCS7 3"
SMIME_write_PKCS7 3 "2006-10-01" "0.9.8d" "OpenSSL"
"NAME"
SMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format.
"SYNOPSIS"
Header "SYNOPSIS" int SMIME_write_PKCS7(\s-1BIO\s0 *out, \s-1PKCS7\s0 *p7, \s-1BIO\s0 *data, int flags);
"DESCRIPTION"
Header "DESCRIPTION" \fISMIME_write_PKCS7() adds the appropriate \s-1MIME\s0 headers to a PKCS#7 structure to produce an S/MIME message.

\fBout is the \s-1BIO\s0 to write the data to. p7 is the appropriate \fB\s-1PKCS7\s0 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"
Header "NOTES" The following flags can be passed in the flags parameter.

If \s-1PKCS7_DETACHED\s0 is set then cleartext signing will be used, this option only makes sense for signedData where \s-1PKCS7_DETACHED\s0 is also set when PKCS7_sign() is also called.

If the \s-1PKCS7_TEXT\s0 flag is set \s-1MIME\s0 headers for type text/plain are added to the content, this only makes sense if \s-1PKCS7_DETACHED\s0 is also set.

If the \s-1PKCS7_PARTSIGN\s0 flag is set the signed data is finalized and output along with the content. This flag should only be set if \s-1PKCS7_DETACHED\s0 is also set and the previous call to PKCS7_sign() also set these flags.

If cleartext signing is being used and \s-1PKCS7_PARTSIGN\s0 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"
Header "BUGS" \fISMIME_write_PKCS7() always base64 encodes PKCS#7 structures, there should be an option to disable this.
"RETURN VALUES"
Header "RETURN VALUES" \fISMIME_write_PKCS7() returns 1 for success or 0 for failure.
"SEE ALSO"
Header "SEE ALSO" \fIERR_get_error\|(3), PKCS7_sign\|(3), \fIPKCS7_verify\|(3), PKCS7_encrypt\|(3) \fIPKCS7_decrypt\|(3)
"HISTORY"
Header "HISTORY" \fISMIME_write_PKCS7() was added to OpenSSL 0.9.5