1SMIME_write_PKCS7(3)                OpenSSL               SMIME_write_PKCS7(3)
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NAME

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

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

12       SMIME_write_PKCS7() adds the appropriate MIME headers to a PKCS#7
13       structure to produce an S/MIME message.
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15       out is the BIO to write the data to. p7 is the appropriate PKCS7 struc‐
16       ture. If cleartext signing (multipart/signed) is being used then the
17       signed data must be supplied in the data argument. flags is an optional
18       set of flags.
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NOTES

21       The following flags can be passed in the flags parameter.
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23       If PKCS7_DETACHED is set then cleartext signing will be used, this
24       option only makes sense for signedData where PKCS7_DETACHED is also set
25       when PKCS7_sign() is also called.
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27       If the PKCS7_TEXT flag is set MIME headers for type text/plain are
28       added to the content, this only makes sense if PKCS7_DETACHED is also
29       set.
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31       If the PKCS7_PARTSIGN flag is set the signed data is finalized and out‐
32       put along with the content. This flag should only be set if
33       PKCS7_DETACHED is also set and the previous call to PKCS7_sign() also
34       set these flags.
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36       If cleartext signing is being used and PKCS7_PARTSIGN not set then the
37       data must be read twice: once to compute the signature in PKCS7_sign()
38       and once to output the S/MIME message.
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BUGS

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

45       SMIME_write_PKCS7() returns 1 for success or 0 for failure.
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SEE ALSO

48       ERR_get_error(3), PKCS7_sign(3), PKCS7_verify(3), PKCS7_encrypt(3)
49       PKCS7_decrypt(3)
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HISTORY

52       SMIME_write_PKCS7() was added to OpenSSL 0.9.5
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560.9.8b                            2003-02-14              SMIME_write_PKCS7(3)
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