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.TH SMIME_write_PKCS7 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
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.rm #[ #] #H #V #F C
.SH "NAME"
SMIME_write_PKCS7 \- convert PKCS#7 structure to S/MIME format.
.SH "SYNOPSIS"
int \fISMIME_write_PKCS7\fR\|(BIO *out, PKCS7 *p7, BIO *data, int flags);
.SH "DESCRIPTION"
\fISMIME_write_PKCS7()\fR adds the appropriate MIME headers to a PKCS#7
structure to produce an S/MIME message.
.PP
\fBout\fR is the BIO to write the data to. \fBp7\fR is the appropriate
\fBPKCS7\fR structure. If cleartext signing (\fBmultipart/signed\fR) is
being used then the signed data must be supplied in the \fBdata\fR 
argument. \fBflags\fR is an optional set of flags.
.SH "NOTES"
The following flags can be passed in the \fBflags\fR parameter.
.PP
If \fBPKCS7_DETACHED\fR is set then cleartext signing will be used,
this option only makes sense for signedData where \fBPKCS7_DETACHED\fR
is also set when \fIPKCS7_sign()\fR is also called.
.PP
If the \fBPKCS7_TEXT\fR flag is set MIME headers for type \fBtext/plain\fR
are added to the content, this only makes sense if \fBPKCS7_DETACHED\fR
is also set.
.PP
If cleartext signing is being used then the data must be read twice:
once to compute the signature in \fIPKCS7_sign()\fR and once to output the
S/MIME message.
.SH "BUGS"
\fISMIME_write_PKCS7()\fR always base64 encodes PKCS#7 structures, there
should be an option to disable this.
.PP
There should really be a way to produce cleartext signing using only
a single pass of the data.
.SH "RETURN VALUES"
\fISMIME_write_PKCS7()\fR returns 1 for success or 0 for failure.
.SH "SEE ALSO"
ERR_get_error(3), PKCS7_sign(3),
PKCS7_verify(3), PKCS7_encrypt(3)
PKCS7_decrypt(3)
.SH "HISTORY"
\fISMIME_write_PKCS7()\fR was added to OpenSSL 0.9.5

.rn }` ''
.IX Title "SMIME_write_PKCS7 3"
.IX Name "SMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format."

.IX Header "NAME"

.IX Header "SYNOPSIS"

.IX Header "DESCRIPTION"

.IX Header "NOTES"

.IX Header "BUGS"

.IX Header "RETURN VALUES"

.IX Header "SEE ALSO"

.IX Header "HISTORY"