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Anything new with Mandrake 8 and the missing line of echo -n test?
- To: odeda-linux-il(at-nospam)betalfa.org.il
- Subject: Anything new with Mandrake 8 and the missing line of echo -n test?
- From: Shaul Karl <shaulka(at-nospam)bezeqint.net>
- Date: Wed, 02 May 2001 01:26:57 +0300
- cc: linux-il(at-nospam)linux.org.il
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
Just wondering if there is something new about it?
> Hi list.
>
> We've just solved this really weird problem with Mandrake 8 (well - solved
> is a harsh word - let's say : we found it why we were going in circles and
> wanted to show you the way in case you get lost too :-), which made my
> life a bit diificult in the last three days or so -
>
> We have a program which writes a single line (with no new line) to stdout
> and quits - this small test program is a good example:
> --------------------------------
> #include <string.h>
> #include <stdio.h>
>
> int main (int argc, char* argv[]) {
> char temp[200];
>
> sprintf(temp,"test");
> write(1,temp,strlen(temp));
> return 0;
> }
> -------------------------------
>
> Now, on a MDK72 and any other well behaving 2.2 distro running this would
> get you something like this :
> -------------------------------
> [user@computer user]$ ./test
> test[user@computer user]$
> -------------------------------
> But on MDK8 I got this :
> -------------------------------
> [user@computer user]$ ./test
> [user@computer user]$
> -------------------------------
> no mention of the output text at all. redirecting stdout to a file and
> 'cat'ing the file it seemed like it does not do output at all.
> stracing proved that not only it does call write() it actually prints what
> I want it to print.
> Although at first we thought we had a glibc flush problem (the original
> program uses printf) or (weird as it may seem) a kernel buffer flushing
> problem, and we were about to raise hell on the kernel development mailing
> list - the solution was pretty simple :
>
> it seems that the Mandrake 8 default shell - bash 2.04.18 - sends a
> carriage return before printing it's prompt - overwriting everything
> written on the same line, as this revised code shows:
> --------------------------------
> #include <string.h>
> #include <stdio.h>
>
> int main (int argc, char* argv[]) {
> char temp[200];
>
> sprintf(temp,"test");
> write(1,temp,strlen(temp));
> sleep(1);
> return 0;
> }
> -------------------------------
>
> simply annoying.
> I was wandering if I should report this as a bug, and if so - to how ?
> Mandrake ?
>
> Oded
>
> p.s. -
> All you csh lovers, please no flaims as to the superiority of tcsh over
> bash, this is not a good example, as even considering this minor
> anoyance, Bash is clearly supreme ;-)
>
--
Shaul Karl <shaulka@bezeqint.net>
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