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Found this in APAR technical at IBM support site: Abstract COMPATIBILITY ISSUES WITH CGI PROGRAMS AT OS/400 VERSION 4. Error Description When migrating your AS/400 system from V3R7 to V4R2, some existing CGI programs may not function correctly. Changes were made in V4R2 to the CGI interface to improve performance, in addition, these changes also brought the HTTP server into closer compliance with the 'industry-standard'. These changes were not possible prior to V4R2, due to limitations with certain AS/400 system functions. Some CGI programs may have been inadvertently written that function correctly prior to V4R2 due to the unique characteristics of the V3 HTTP server CGI interface. What was the change? The AS400 runtime environment was enhanced in a way that allows the HTTP server to implement byte streams for CGI standard in and standard out. Why was the change made? The change was motivated by customer requirements to remove the line length limitations on standard in and standard out. What problems are detected/flagged? 1.) Programs that call QtmhRdStdin multiple times to reread the standard in data are incorrect and will not work. 2.) All programs that read from standard in (QtmhRdSdtin) need to check the Content-Length environment variable to determine the number of bytes to read. Programs that do not use the Content-Length environment variable and read more than the Content-Length will not work. Why was the change made? The change was motivated by customer requirements to remove the 250 byte limit on standard in and standard out. What problems are detected/flagged? 1.) Programs that call QtmhRdStdin multiple times to reread the standard in data are incorrect and will not work. 2.) All programs that read from standard in (QtmhRdSdtin) need to check the Content-Length environment variable to determine the number of bytes to read. Programs that do not use the Content-Length environment variable and read more than the Content-Length will not work. When was the change made? The change was made available via the following ptfs: V4R1 - 5769SS1 SF46810 5769TC1 SF47332 V4R2 - 5769TC1 SF46558 What can the customer do? The customer can use the Web Programming Guide to ensure that his programs meet the standards/guidelines described in the documentation. At 03:44 PM 3/12/02 -0800, you wrote: >I've got a client moving from v4r4 to v5r1 and has several websites >running. There may be a large amount of CGI programming in use and the >person who maintained it is long gone. Now I thought I remember an API >change that affected CGI programming somewhere at v4r5 or v5r1 but can't >find the ref. > >I've search the archive but 'cgi' is in every darn message... Anyone >remember the API and/or have a ref for the change? > > >Thanks > >__________________________________________________ >Kirk Goins >IBM Certified iSeries Technical Solutions Design >IBM Certified iSeries Technical Solutions Implementation >Pacific Information Systems - An IBM Premier Business Partner >503-674-2985 kirkg@pacinfosys.com > >_______________________________________________ >This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list >To post a message email: MIDRANGE-L@midrange.com >To subscribe, unsubscribe, or change list options, >visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l >or email: MIDRANGE-L-request@midrange.com >Before posting, please take a moment to review the archives >at http://archive.midrange.com/midrange-l.
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