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In the early 2000s I had to interface with a credit card authorization and settlement system for a major credit card. I opened a socket, sent a perfectly format
by csixty4 7y ago
In the early 2000s I had to interface with a credit card authorization and settlement system for a major credit card. I opened a socket, sent a perfectly formatted transmission, and got back gobbledegook.
Fortunately I had a computer history background and realized I was getting a perfectly sensible response...in EBCDIC.
- CGamesPlay 7y agoThe endpoint accepted incoming ASCII but responded in EBCDIC? Or was this a binary packet with some EBCDIC-coded strings?
- csixty4 7y agoI was getting an error message back, apparently. So I needed to send EBCDIC too, but apparently nobody thought to document this anywhere. It wasn't binary, but it was fixed length fields, which were surprising common in those days.
- em-bee 7y agoand hollywood tries to make us believe that we can easily talk to alien systems