Date: Tue, 16 Mar 2004 00:04:04 EST-10EDT,10,-1,0,7200,3,-1,0,7200,3600
Subject: [UnixOS2_Archive] No. 315

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Monday 15 March 2004
 Number  315
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Subjects for today
 
1  Re:  XFree86/OS2 version 4.4.0 : Dave and Natalie" <dave_yeo at paralynx.com>
2   DLL question : Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
3  Re:  DLL question : Henry Sobotka <sobotka at axess.com>
4  Re:  GCC 3.2.2 Beta 4 - printf bug? : Henry Sobotka <sobotka at axess.com>


**= Email   1 ==========================**

Date:  Sun, 14 Mar 2004 10:20:21 -0800
From:  "Dave and Natalie" <dave_yeo at paralynx.com>
Subject:  Re:  XFree86/OS2 version 4.4.0

On Sun, 14 Mar 2004 10:59:53 +0000 (GMT), Dave Saville wrote:

>Must admit that I never tried the locks. But it did seem very dead.
>Nothing in /usr/adm. One thing though. I also tried on my T21 ECS1.0
>system. V3 would never work on that because of the screen. This time
>I did not redirect the error stream and it whinged about being unable
>to write to /tmp - because that's on another drive. Put a temp tmp on
>the same drive and it all ran. However, after startx I got a twm
>desktop that did not fit the screen. I could not change resolutions
>and it did not scroll if I hit the edge with the mouse - *and* I
>could not get back to the OS/2 desktop. Just another black screen and
>again a locked up keyboard. Had to power cycle the thing. 

Yes it does need a /tmp and /usr/adm on the current drive. ctrl-alt-backspace should kill the X session. I'd suggest moving the discussion over to the XFree list
Dave





**= Email   2 ==========================**

Date:  Sun, 14 Mar 2004 20:56:28 +0100 (CET)
From:  Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
Subject:   DLL question

	Hi,

I realize that DLLs have an ugly limitation when it comes to naming them
(8 digits or letters + ".dll"). Is that limitation also valid if I
access the library _only_ by DosLoadModule & DosQueryProcAddr (think of
Plugins)? 

	Regards,
		Stefan
-- 
Micro$oft is not an answer. It is a question. The answer is 'no'.



**= Email   3 ==========================**

Date:  Sun, 14 Mar 2004 21:31:13 -0500
From:  Henry Sobotka <sobotka at axess.com>
Subject:  Re:  DLL question

Stefan Neis wrote:
> 
> I realize that DLLs have an ugly limitation when it comes to naming them
> (8 digits or letters + ".dll"). Is that limitation also valid if I
> access the library _only_ by DosLoadModule & DosQueryProcAddr (think of
> Plugins)?

Yes. DosLoadModule returns 123 (ERROR_INVALID_NAME) when fed a longer
name and without the load, DosQueryProcAddr fails.

h~
-- 
Free software, free minds.


**= Email   4 ==========================**

Date:  Sun, 14 Mar 2004 22:33:28 -0500
From:  Henry Sobotka <sobotka at axess.com>
Subject:  Re:  GCC 3.2.2 Beta 4 - printf bug?

Hi Knut,

While looking into the emxomfar foo.o bar/foo.o problem (thanks for
emxomfar.dbg!) I discovered that EMX's strrev is broken; it SIGSEGVs on
"*p = *q" and, even if it didn't, it returns the input "string" after
doing nothing with it other than the assignment to p and q. So I rolled
my own (my_strrev in the revtest.c below) and found it works fine with
gcc 2.8.1 and 2.95.3. But with 3.2.2 b4 I get strange behavior:

[C:\temp]revtest foo
reversed = 
9lT

The garbage is output until strlen == 16, which produces reversal +
garbage:

[C:\temp]revtest foofoofoofoofoof
reversed = foofoofoofoofoof
9lT

With spaces in the string, the first 8 chars get cut off:

[C:\temp]revtest "This is a very very long string reversed"
reversed = desrever gnirts gnol yrev yrev a
9l4

I then added the debug printf to my_strrev and (surprise!) its presence
alone fixes things:

[C:\temp]revtest foo
returning oof
reversed = oof

[C:\temp]revtest "This string should now be clearly reversed"
returning desrever ylraelc eb won dluohs gnirts sihT
reversed = desrever ylraelc eb won dluohs gnirts sihT

A look in sd386 with fix == 0 shows that the string is fine when
assigned to r, and the garbage suddenly gets added to r with the call to
printf in main().

h~
-- 
Free software, free minds.

--------------------revtest.c---------------------
#include <stdio.h>
#include <string.h>

int fix = 0;

char* my_strrev (char *string)
{
  char* p = string;
  int len = strlen(string);
  char q[len+1];
  int i = 0;

  p += len-1;
  while (len--) {
    q[i] = *p--;
    i++;
  }
  q[i] = '\0';
  p = (char*)&q;
  if (fix)
    printf("returning %s\n", p);
  return p;
}

int main(int argc, char** argv) {
  char* r = my_strrev(argv[1]);
  printf("reversed = %s\n", r);
  return 0;
}
----------------------------end revtest.c-----------------