=pod =head1 NAME CMS_ReceiptRequest_create0, CMS_add1_ReceiptRequest, CMS_get1_ReceiptRequest, CMS_ReceiptRequest_get0_values - CMS signed receipt request functions. =head1 SYNOPSIS #include <openssl/cms.h> CMS_ReceiptRequest *CMS_ReceiptRequest_create0(unsigned char *id, int idlen, int allorfirst, STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo); int CMS_add1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest *rr); int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr); void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr, ASN1_STRING **pcid, int *pallorfirst, STACK_OF(GENERAL_NAMES) **plist, STACK_OF(GENERAL_NAMES) **prto); =head1 DESCRIPTION CMS_ReceiptRequest_create0() creates a signed receipt request structure. The B<signedContentIdentifier> field is set using B<id> and B<idlen>, or it is set to 32 bytes of pseudo random data if B<id> is NULL. If B<receiptList> is NULL the allOrFirstTier option in B<receiptsFrom> is used and set to the value of the B<allorfirst> parameter. If B<receiptList> is not NULL the B<receiptList> option in B<receiptsFrom> is used. The B<receiptsTo> parameter specifies the B<receiptsTo> field value. The CMS_add1_ReceiptRequest() function adds a signed receipt request B<rr> to SignerInfo structure B<si>. int CMS_get1_ReceiptRequest() looks for a signed receipt request in B<si>, if any is found it is decoded and written to B<prr>. CMS_ReceiptRequest_get0_values() retrieves the values of a receipt request. The signedContentIdentifier is copied to B<pcid>. If the B<allOrFirstTier> option of B<receiptsFrom> is used its value is copied to B<pallorfirst> otherwise the B<receiptList> field is copied to B<plist>. The B<receiptsTo> parameter is copied to B<prto>. =head1 NOTES For more details of the meaning of the fields see RFC2634. The contents of a signed receipt should only be considered meaningful if the corresponding CMS_ContentInfo structure can be successfully verified using CMS_verify(). =head1 RETURN VALUES CMS_ReceiptRequest_create0() returns a signed receipt request structure or NULL if an error occurred. CMS_add1_ReceiptRequest() returns 1 for success or 0 is an error occurred. CMS_get1_ReceiptRequest() returns 1 is a signed receipt request is found and decoded. It returns 0 if a signed receipt request is not present and -1 if it is present but malformed. =head1 SEE ALSO L<ERR_get_error(3)|ERR_get_error(3)>, L<CMS_sign(3)|CMS_sign(3)>, L<CMS_sign_receipt(3)|CMS_sign_receipt(3)>, L<CMS_verify(3)|CMS_verify(3)> L<CMS_verify_receipt(3)|CMS_verify_receipt(3)> =head1 HISTORY CMS_ReceiptRequest_create0(), CMS_add1_ReceiptRequest(), CMS_get1_ReceiptRequest() and CMS_ReceiptRequest_get0_values() were added to OpenSSL 0.9.8 =cut