Date: Sun, 21 May 2006 00:01:28 EST-10EDT,10,-1,0,7200,3,-1,0,7200,3600
Subject: [UnixOS2_Archive] No. 706

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Saturday 20 May 2006
 Number  706
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Subjects for today
 
1  Re:  utimes chown and xattr : Andreas =?iso-8859-1?Q?B=FCning?= <andreas.buening at nexgo.de>
2  Re:  utimes chown and xattr : Brendan Oakley" <gentux2 at gmail.com>
3  Re:  utimes chown and xattr : dave bamford <dave at logical-progress.com>


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

Date:  Thu, 18 May 2006 19:53:01 +0200
From:  Andreas =?iso-8859-1?Q?B=FCning?= <andreas.buening at nexgo.de>
Subject:  Re:  utimes chown and xattr

Dave Bamford wrote:
> 
> Nearly finished the porting of this BoxBackup program but I have a few minor
> issues to resolve. I cannot retrieve the file attributes from the backup
> store
> 
> ::utimes(Filename, times) returns an error which gives errno 13

Does the file exist, is it open?


> The times structure has good data (I think) and Filename returns just
> the filename (no path)
> this statement
> printf("BCFA.cpp:634\nfilename=%s\n0=%d\n1=%d\n",Filename,times[0],times[1]);

This is illegal code. sizeof(times[0]) == 8 != sizeof(int). Use

printf("BCFA.cpp:634\nfilename=%s\n0=%d.%d\n1=%d.%d\n",Filename,times[0].tv_sec,
       times[0].tv_usec, times[1].tv_sec, times[1].tv_usec);


> Although I tried to set times[0] and times[1] to the same, but I realise 
> its a structure of
> seconds in unixtime and milliseconds but I am not sure how to interrogate it
> correctly.

#include <time.h>

times[0].tv_sec = time(NULL);
times[0].tv_usec = 0;
times[1] = times[0];

should provide a useful value for times[i]. Not tested.


> Finally is there any support for extended attributes, unix has some
> xattr stuff but I can't
> find anything in OS/2 emx libraries

Old emx has sys/ea.h and sys/ead.h.


Bye,
Andreas


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

Date:  Fri, 19 May 2006 10:35:33 -0700
From:  "Brendan Oakley" <gentux2 at gmail.com>
Subject:  Re:  utimes chown and xattr

On 5/18/06, Andreas Büning <andreas.buening at nexgo.de> wrote:

> Old emx has sys/ea.h and sys/ead.h.

But if he's using gcc-3.3.5 with latest libc, he can't mix, right? Or
how would he go about making use of this?

Brendan


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

Date:  Sat, 20 May 2006 11:19:59 +0100
From:  dave bamford <dave at logical-progress.com>
Subject:  Re:  utimes chown and xattr

Brendan Oakley wrote:

> On 5/18/06, Andreas Büning <andreas.buening at nexgo.de> wrote:
>
>> Old emx has sys/ea.h and sys/ead.h.
>
>
> But if he's using gcc-3.3.5 with latest libc, he can't mix, right? Or
> how would he go about making use of this?
>
> Brendan
>
>
What gets lost if I throw away the eas? I know rexx scripts precomile 
there but that
can be recreated. This is a backup system so I only need to be able to 
restore what
can't be recreated easily. I am using gcc-3.3.5 so are there any 
possibilities of making
use od old-emx features? Or perhaps I should wait for xattr to be built 
into libc?

Dave Bamford.