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Programmer code of honor (update)
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Alcides Schulz



Joined: 07 Jan 2011
Posts: 50
Location: USA
PostPost subject: Re: Programmer code of honor (update) OFF_TOPIC    Posted: Sat Jul 07, 2012 12:39 pm Reply to topic Reply with quote
rvida wrote:
hgm wrote:

Furthermore, RE through disassembly is not illegal per se. It depends on what you do with the knowledge thus obtained.


I agree. Few years ago I hacked a quite serious product (the 4GL client by Progress Software Corporation). No lawsuit so far...

In version 8 they introduced (together with user defined functions) a very serious bug:

Code:

ASSIGN
  table.field1 = some_value
  table.field2 = some_function().


This rather trivial code construct caused database corruption (and a serious flood of tech support calls).

Progress Knowledge Base entry #18223:
Quote:

Assigning a key field in any statement before a reference to a
User-defined Function in that same statement has been found to cause
index corruption or give run-time error messages.
This applies to any statement that can have multiple assignments in
the same statement, e.g., ASSIGN, SET, UPDATE, IMPORT, PROMPT-FOR,
CHOOSE.


For at least 2 years(!) this bug was ignored by PSC. In version 8.3B they modified the compiler to issue a warning. In version 9 they finally fixed the bug.

This particular bug costed us some serious money. In desperation I used a debugger to find the bug myself and developed a fix for it. To all of our clients we distributed a small program that patched their Progress runtime binary. While this might be illegal (or in breach of EULA), I still don't feel like a criminal.


Hi Richard, good to see we I'm not alone in the world, I also used progress in Brazil. Actually our company, Datasul, imported progress and became the major partner of PSC there. I can relate to that, sometimes we were frustated with their slow response, but i think it was a good product.
Anyway, good memories from that time. Today I'm in another company and I use .net for our development. Sometimes I miss the 4GL we used for business application. It was a good concept.
Regards.
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Subject Author Date/Time
Programmer code of honor (update) Ed Schroder Fri Jun 29, 2012 8:03 am
      Re: Programmer code of honor (update) Ricardo Barreira Fri Jun 29, 2012 7:09 pm
            Re: Programmer code of honor (update) Vincent Diepeveen Fri Jun 29, 2012 10:55 pm
            Re: Programmer code of honor (update) Ed Schroder Mon Jul 02, 2012 8:19 am
                  Re: Programmer code of honor (update) Dan Honeycutt Mon Jul 02, 2012 3:47 pm
      Re: Programmer code of honor (update) Vincent Diepeveen Fri Jun 29, 2012 10:41 pm
            Re: Programmer code of honor (update) Ed Schroder Mon Jul 02, 2012 8:21 am
      Re: Programmer code of honor (update) Don Dailey Thu Jul 05, 2012 4:22 pm
            Re: Programmer code of honor (update) Ed Schroder Thu Jul 05, 2012 10:02 pm
                  Re: Programmer code of honor (update) Don Dailey Thu Jul 05, 2012 10:14 pm
                        Re: Programmer code of honor (update) Ed Schroder Sat Jul 07, 2012 10:17 am
                              Re: Programmer code of honor (update) Don Dailey Sat Jul 07, 2012 10:41 am
                              Re: Programmer code of honor (update) Richard Vida Sat Jul 07, 2012 11:13 am
                        Re: Programmer code of honor (update) Marco Costalba Sat Jul 07, 2012 10:46 am
                              Re: Programmer code of honor (update) Uri Blass Sat Jul 07, 2012 11:25 am
                              Re: Programmer code of honor (update) Thomas Petzke Sat Jul 07, 2012 12:44 pm
                              Re: Programmer code of honor (update) Robert Hyatt Sat Jul 07, 2012 3:04 pm
                                    Re: Programmer code of honor (update) Uri Blass Sat Jul 07, 2012 3:17 pm
                                          Re: Programmer code of honor (update) Ed Schroder Sat Jul 07, 2012 7:07 pm
                                                Re: Programmer code of honor (update) Uri Blass Sat Jul 07, 2012 7:19 pm
                                                      Re: Programmer code of honor (update) Ed Schroder Sat Jul 07, 2012 8:08 pm
                                                            Re: Programmer code of honor (update) H.G.Muller Sat Jul 07, 2012 8:27 pm
                                                                  Re: Programmer code of honor (update) Ed Schroder Sat Jul 07, 2012 9:55 pm
                                                                        Re: Programmer code of honor (update) H.G.Muller Sun Jul 08, 2012 7:59 am
                                                                              Re: Programmer code of honor (update) Ed Schroder Sun Jul 08, 2012 9:55 am
                                                                                    Re: Programmer code of honor (update) H.G.Muller Mon Jul 09, 2012 9:17 am
                                                                                          Re: Programmer code of honor (update) Ed Schroder Mon Jul 09, 2012 10:40 am
                                                                                          Re: Programmer code of honor (update) H.G.Muller Mon Jul 09, 2012 11:51 am
                                                                                          Re: Programmer code of honor (update) Vincent Diepeveen Fri Jul 13, 2012 2:36 pm
                                                                        Re: Programmer code of honor (update) Vincent Diepeveen Fri Jul 13, 2012 2:30 pm
                                                                  Re: Programmer code of honor (update) Joerg Oster Sun Jul 08, 2012 9:35 am
                                                                        Re: Programmer code of honor (update) H.G.Muller Mon Jul 09, 2012 9:03 am
                                                                              Re: Programmer code of honor (update) Joerg Oster Mon Jul 09, 2012 9:41 am
                                                                              Re: Programmer code of honor (update) Thomas Petzke Mon Jul 09, 2012 6:03 pm
                                                            Re: Programmer code of honor (update) Vincent Diepeveen Fri Jul 13, 2012 2:26 pm
                                                      Re: Programmer code of honor (update) Thomas Petzke Sun Jul 08, 2012 10:06 am
                  Re: Programmer code of honor (update) Larry Kaufman Wed Jul 11, 2012 2:51 pm
                        Re: Programmer code of honor (update) Sune Fischer Wed Jul 11, 2012 3:29 pm
                              Re: Programmer code of honor (update) Larry Kaufman Wed Jul 11, 2012 3:54 pm
                                    Re: Programmer code of honor (update) Sune Fischer Thu Jul 12, 2012 10:40 am
                                          Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 10:47 am
                                                Re: Programmer code of honor (update) Sune Fischer Thu Jul 12, 2012 11:39 am
                                                      Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 12:19 pm
                                                            Re: Programmer code of honor (update) Ed Schroder Thu Jul 12, 2012 12:59 pm
                                                                  Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 8:51 pm
                                                                        Re: Programmer code of honor (update) Ed Schroder Thu Jul 12, 2012 9:27 pm
                                                            Re: Programmer code of honor (update) Rolf Thu Jul 12, 2012 1:55 pm
                        Re: Programmer code of honor (update) Ronald de Man Wed Jul 11, 2012 4:03 pm
                              Re: Programmer code of honor (update) Robert Houdart Wed Jul 11, 2012 4:52 pm
                                    Re: Programmer code of honor (update) Vincent Diepeveen Wed Jul 11, 2012 4:55 pm
                                          Re: Programmer code of honor (update) Robert Houdart Wed Jul 11, 2012 5:02 pm
                                                Re: Programmer code of honor (update) Vincent Diepeveen Wed Jul 11, 2012 5:12 pm
                                                      Re: Programmer code of honor (update) Robert Houdart Wed Jul 11, 2012 5:18 pm
                                                            Re: Programmer code of honor (update) Vincent Diepeveen Wed Jul 11, 2012 5:24 pm
                                                      Re: Programmer code of honor (update) Larry Kaufman Wed Jul 11, 2012 8:27 pm
                                                            Re: Programmer code of honor (update) Robert Houdart Wed Jul 11, 2012 9:35 pm
                                                            Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 10:06 am
                                                                  Re: Programmer code of honor (update) Lucas Braesch Thu Jul 12, 2012 11:26 am
                                                                        Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 12:03 pm
                                                                              Re: Programmer code of honor (update) Uri Blass Thu Jul 12, 2012 1:56 pm
                                                                              Re: Programmer code of honor (update) Lucas Braesch Thu Jul 12, 2012 3:24 pm
                                                                                    Re: Programmer code of honor (update) Vincent Diepeveen Thu Jul 12, 2012 9:09 pm
                                                                                          Re: Programmer code of honor (update) Lucas Braesch Fri Jul 13, 2012 3:59 am
                                                                                          Re: Programmer code of honor (update) Thomas Petzke Fri Jul 13, 2012 6:58 am
                                                                  Re: Programmer code of honor (update) Larry Kaufman Fri Jul 13, 2012 4:20 pm
                                                                        Re: Programmer code of honor (update) Vincent Diepeveen Fri Jul 13, 2012 6:00 pm
                                                Re: Programmer code of honor (update) H.G.Muller Wed Jul 11, 2012 5:59 pm
                                    Re: Programmer code of honor (update) Dan Honeycutt Wed Jul 11, 2012 7:58 pm
                                    Re: Programmer code of honor (update) Larry Kaufman Wed Jul 11, 2012 8:33 pm
                                          Re: Programmer code of honor (update) Robert Houdart Wed Jul 11, 2012 9:32 pm
                                          Re: Programmer code of honor (update) Dan Honeycutt Thu Jul 12, 2012 1:03 am
                                                Re: Programmer code of honor (update) Eelco de Groot Thu Jul 12, 2012 1:51 am
                                                      Re: Programmer code of honor (update) Dan Honeycutt Thu Jul 12, 2012 2:41 am
                                                            Re: Programmer code of honor (update) Rolf Thu Jul 12, 2012 1:28 pm
                                          Re: Programmer code of honor (update) Adam Hair Thu Jul 12, 2012 1:38 am
                                    Re: Programmer code of honor (update) Ed Schroder Thu Jul 12, 2012 9:04 am
                                    Re: Programmer code of honor (update) Rolf Thu Jul 12, 2012 1:12 pm
            Re: Programmer code of honor (update) Robert Houdart Thu Jul 05, 2012 11:07 pm
                  Re: Programmer code of honor (update) Don Dailey Fri Jul 06, 2012 12:18 am
                  Re: Programmer code of honor (update) H.G.Muller Sat Jul 07, 2012 10:45 am
                        Re: Programmer code of honor (update) Richard Vida Sat Jul 07, 2012 11:48 am
                              Re: Programmer code of honor (update) H.G.Muller Sat Jul 07, 2012 12:27 pm
                              Re: Programmer code of honor (update) OFF_TOPIC Alcides Schulz Sat Jul 07, 2012 12:39 pm
      Re: Programmer code of honor (update) Vincent Lejeune Mon Jul 09, 2012 10:25 am
            Re: Programmer code of honor (update) Ed Schroder Mon Jul 09, 2012 10:41 am
                  Re: Programmer code of honor (update) Vincent Lejeune Mon Jul 09, 2012 10:51 am
                        Re: Programmer code of honor (update) Ed Schroder Mon Jul 09, 2012 11:10 am
      Re: Programmer code of honor (update) Matthew Hull Fri Jul 13, 2012 5:56 am
            Re: Programmer code of honor (update) Sune Fischer Fri Jul 13, 2012 7:01 am
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