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From Martin Kraemer <Martin.Krae...@mch.sni.de>
Subject Re: OS/390 Translation
Date Fri, 03 Dec 1999 17:11:26 GMT
On Fri, Dec 03, 1999 at 09:16:37AM -0700, pg@sweng.stortek.com wrote:
> If it is necessary to change Martin's design, it will probably
> to be necessary to rebuild with strcat() all strings now
> containing '\012'.

Actually, having \n and \r in place of \012 and \015 thruout the code
would probably have resulted in an easier port to EBCDIC machines
(it would avoid the os_toascii_strictly kludge).

On the socket level, we *ALWAYS* have to transmit '\012' and '\015'.

But changing '\012' to '\n' and '\015' to '\r' everywhere would break
on ASCII based systems where  ('\n' != '\012') or ('\r' != '\015')
(when it's an ASCII system, there's no implied additional conversion
step which could fix the different representations. On EBCDIC, we
have this translation step).

That is for instance the case with Macintosh and similar systems
(where '\n' == '\015', like in OS-9/68k). The reason why explicit
'\012' and  '\015' were coded in the first place was to avoid
protocol errors caused by such a differing ASCII implementation.

    Martin
-- 
<Martin.Kraemer@MchP.Siemens.De>             |    Fujitsu Siemens
Fon: +49-89-636-46021, FAX: +49-89-636-41143 | 81730  Munich,  Germany

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