console vs pty (was: Re: First Pass at mintty documentation; etc.)

[Andy Koppe]

Chuck Wilson wrote:
> "full screen" or "DOS" is a red herring. Any program that does something
> like the following, if compiled as a native program, won't work in rxvt
> (or MinTTY, or cygwin/cmd-shell-with-CYGWIN=tty):
> 
> #include <stdio.h>
> main() {
>   int c;
>   while ((c = getc(stdin)) != EOF) fputc(c, stdout);
> }
> 
> The thing is, THIS program works as part of a pipeline even when
> compiled as a native program -- but it breaks if you try to use it
> interactively within rxvt/MinTTY/etc.  A cygwin-compiled version works
> in all cases.

I see, thanks for explaining that. What exactly does happen when calling 
read() that means that pty input doesn't reach the program?

Andy

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