Manual Pages for UNIX Operating System command usage for man SMIME_read_PKCS7

OpenSSL                                SMIME_read_PKCS7(3openssl)



NNNNAAAAMMMMEEEE
     SMIME_read_PKCS7 - parse S/MIME message.

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
      #include 

      PKCS7 *SMIME_read_PKCS7(BIO *in, BIO **bcont);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     SMIME_read_PKCS7() parses a message in S/MIME format.

     iiiinnnn is a BIO to read the message from.

     If cleartext signing is used then the content is saved in a
     memory bio which is written to ****bbbbccccoooonnnntttt, otherwise ****bbbbccccoooonnnntttt is
     set to NNNNUUUULLLLLLLL.

     The parsed PKCS#7 structure is returned or NNNNUUUULLLLLLLL if an error
     occurred.

NNNNOOOOTTTTEEEESSSS
     If ****bbbbccccoooonnnntttt is not NNNNUUUULLLLLLLL then the message is clear text signed.
     ****bbbbccccoooonnnntttt can then be passed to PKCS7_verify() with the
     PPPPKKKKCCCCSSSS7777_DDDDEEEETTTTAAAACCCCHHHHEEEEDDDD flag set.

     Otherwise the type of the returned structure can be
     determined using PKCS7_type().

     To support future functionality if bbbbccccoooonnnntttt is not NNNNUUUULLLLLLLL ****bbbbccccoooonnnntttt
     should be initialized to NNNNUUUULLLLLLLL. For example:

      BIO *cont = NULL;
      PKCS7 *p7;

      p7 = SMIME_read_PKCS7(in, &cont);


BBBBUUUUGGGGSSSS
     The MIME parser used by SMIME_read_PKCS7() is somewhat
     primitive.  While it will handle most S/MIME messages more
     complex compound formats may not work.

     The parser assumes that the PKCS7 structure is always base64
     encoded and will not handle the case where it is in binary
     format or uses quoted printable format.

     The use of a memory BIO to hold the signed content limits
     the size of message which can be processed due to memory
     restraints: a streaming single pass option should be
     available.




27/Mar/2010            Last change: 0.9.8o                      1






OpenSSL                                SMIME_read_PKCS7(3openssl)



RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEESSSS
     SMIME_read_PKCS7() returns a valid PPPPKKKKCCCCSSSS7777 structure or NNNNUUUULLLLLLLL
     is an error occurred. The error can be obtained from
     ERR_get_error(3).

SSSSEEEEEEEE AAAALLLLSSSSOOOO
     ERR_get_error(3), PKCS7_type(3) SMIME_read_PKCS7(3),
     PKCS7_sign(3), PKCS7_verify(3), PKCS7_encrypt(3)
     PKCS7_decrypt(3)

HHHHIIIISSSSTTTTOOOORRRRYYYY
     SMIME_read_PKCS7() was added to OpenSSL 0.9.5











































27/Mar/2010            Last change: 0.9.8o                      2