jth90342@uxa.cso.uiuc.edu (02/20/89)
I am interested in using HyperCard for access of a UNIX based database over
Ethernet. Because of technical reasons, UDP packets must be used. If anyone
has had any experience in a project like this, or has seen information on
this, I would like to know more. Thanx. Jeff Huber - U of Illinois
jth90342@uxa.cso.uiuc.eduphil@Apple.COM (Phil Ronzone) (02/22/89)
In article <227700005@uxa.cso.uiuc.edu> jth90342@uxa.cso.uiuc.edu writes: > >I am interested in using HyperCard for access of a UNIX based database over >Ethernet. Because of technical reasons, UDP packets must be used. If anyone >has had any experience in a project like this, or has seen information on >this, I would like to know more. Thanx. Jeff Huber - U of Illinois > jth90342@uxa.cso.uiuc.edu Well, if you use A/UX, you can run HyperCard under it and write XCMDs/XFCNs to do standard TCP/IP networking. We're doing a fair amount of direct UNIX system call using code and it works quite nicely. You can develop the code as standard UNIX programs, debug them, then wrap them in a little glue, and voila! The only medium slow part is that you have to do your own interface library to the UNIX system calls. But, they are not hard. An example for the UNIX read system call is shown below: This is in LSC 3.0. /*****************************************************************************/ /* */ /* read() - The A/UX system call read. */ /* */ /*****************************************************************************/ long read(file,buffer,count) long file; char *buffer; long count; { asm { move.l count,-(sp) ; Push argument move.l buffer,-(sp) ; Push argument move.l file,-(sp) ; Push argument move.l #0,-(sp) ; Dummy return address move.l #READ,d0 ; Setup system call number trap #0 ; Do the system call bcc @noerr ; Branch if no error move.l d0,errno ; Save the error number move.l #-1,d0 ; Always return -1 for an error noerr: add.l #16,sp ; Pop the arguments } } Otherwise, you'll have to get a Mac OS package that supports TCP/IP and UDP and write an XCMD for it. +------------------------+-----------------------+----------------------------+ | Philip K. Ronzone | A/UX System Architect | APPLELINK: RONZONE1 | | Apple Computer MS 27AJ +-----------------------+----------------------------+ | 10500 N. DeAnza Blvd. | Computer viruses don't cause security problems, | | Cupertino CA 95014 | computer programmers do ... | +------------------------+----------------------------------------------------+ |{amdahl,decwrl,sun,voder,nsc,mtxinu,dual,unisoft}!apple!phil | +-----------------------------------------------------------------------------+