SDISC Assembler Call - NetEx

SCONFIRM Assembler CallThe SCONFIRM call provides a means for an offering program to confirm (to the connector) that the connectionhas been made and the block size, class, and any optional data are accept able to the offerer. A negativeresponse would be in the form of an SDISC (disconnect).Before issuing the SCONFIRM, an SOFFER must have completed successfully with a Connect Indication.The user must provide a NRB containing the information supplied by the previous SOFFER.Also prior to issuing an SCONFIRM call, the user must provide an NRB (described in “NETEX RequestBlock”) to be used by the user interface. All NRB fields which are not defaults or have not been assembledinto the NRB data area(s) must be filled in by the program before calling NETEX. The areas used by theSCONFIRM call include the followingNRBBUFANRBLENNRBUBITNRBMODEStarting address of (optional) data to be transmitted to the other program with theSCONFIRM request.Length of (optional) data to be transmitted with the SCONFIRM request. Note that this mustnot exceed the maximum segment size of either host.Unused bit count for (optional) data to be transmitted with the SCONFIRM request.Datamode for making data intelligible for users on both ends.CallParametersSCONFIRM[W] nrb [err-return]SCONFIRMThis is the procedure name.SCONFIRMWIf this optional call is specified, the return will not be made to the caller until the request has completed.If not specified, return will be made immediately after preliminary error-checking of the request(by NETEX).nrbThis is the address of the updated NETEX request block that is to be used with this procedure.err-return (optional)If specified, this field is the address to which control will be transferred if the request completes witha nonzero return code (indicating an error). Note that this does not apply to the immediate return withan in-progress status (negative value).Page 40 H307 Assembler Interface MAN-REF-H307IP-04