63 lines
1.8 KiB
Text
63 lines
1.8 KiB
Text
=pod
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=head1 NAME
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SMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format.
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=head1 SYNOPSIS
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#include <openssl/pkcs7.h>
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int SMIME_write_PKCS7(BIO *out, PKCS7 *p7, BIO *data, int flags);
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=head1 DESCRIPTION
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SMIME_write_PKCS7() adds the appropriate MIME headers to a PKCS#7
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structure to produce an S/MIME message.
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B<out> is the BIO to write the data to. B<p7> is the appropriate
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B<PKCS7> structure. If cleartext signing (B<multipart/signed>) is
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being used then the signed data must be supplied in the B<data>
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argument. B<flags> is an optional set of flags.
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=head1 NOTES
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The following flags can be passed in the B<flags> parameter.
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If B<PKCS7_DETACHED> is set then cleartext signing will be used,
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this option only makes sense for signedData where B<PKCS7_DETACHED>
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is also set when PKCS7_sign() is also called.
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If the B<PKCS7_TEXT> flag is set MIME headers for type B<text/plain>
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are added to the content, this only makes sense if B<PKCS7_DETACHED>
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is also set.
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If the B<PKCS7_PARTSIGN> flag is set the signed data is finalized
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and output along with the content. This flag should only be set
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if B<PKCS7_DETACHED> is also set and the previous call to PKCS7_sign()
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also set these flags.
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If cleartext signing is being used and B<PKCS7_PARTSIGN> not set then
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the data must be read twice: once to compute the signature in PKCS7_sign()
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and once to output the S/MIME message.
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=head1 BUGS
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SMIME_write_PKCS7() always base64 encodes PKCS#7 structures, there
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should be an option to disable this.
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=head1 RETURN VALUES
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SMIME_write_PKCS7() returns 1 for success or 0 for failure.
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=head1 SEE ALSO
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L<ERR_get_error(3)|ERR_get_error(3)>, L<PKCS7_sign(3)|PKCS7_sign(3)>,
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L<PKCS7_verify(3)|PKCS7_verify(3)>, L<PKCS7_encrypt(3)|PKCS7_encrypt(3)>
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L<PKCS7_decrypt(3)|PKCS7_decrypt(3)>
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=head1 HISTORY
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SMIME_write_PKCS7() was added to OpenSSL 0.9.5
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=cut
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