Hi Andre,

I'm using a Perl program with a cunning set of sysread/syswrite routines toget the data using unpack and then write it back after repacking the edited data.

Marty

From: Laframboise, André [mailto:Andre.Laframboise (AT) bac-lac (DOT) gc.ca]
Sent: 25 November 2011 15:35
To: Martin Bowes
Subject: Editing the Ingres config file.

Hi Marty,

The config file is a binary file. I think you have to make sure you're editor is not text based.
Years ago I tried editing it a few times with various editors but none worked.

I eventually wrote a small C program to replace some characters in it and it worked as long as the I replaced existing characters only.
I think there's a set structure to that file so string lengths have to remain the same.

But a config file editor would be nice.

Andre



Andre C. Laframboise
Technical Advisor , Database and Data Administration
Conseiller Technique, Administration de base de données et de données
Application Services / Services d'Application
Application Development / Développement d'application
Library and Archives Canada / Bibliothèque et Archives Canada
550, boul. de la Cité, Gatineau, QC
Canada K1A 0N4
andre.laframboise (AT) lac-bac (DOT) gc.ca
Téléphone / Telephone 819-997-7407
Télécopieur / Facsimile 819-994-6835
Gouvernement du Canada / Government of Canada
www.collectionscanada.gc.ca<http://www.collectionscanada.gc.ca/>

Yep sysread/syswrite operate at the byte level.

Marty

From: Laframboise, André [mailto:Andre.Laframboise (AT) bac-lac (DOT) gc.ca]
Sent: 25 November 2011 15:52
To: Martin Bowes
Cc: Ingres and related product discussion forum
Subject: RE: Editing the Ingres config file.

Don't you hate that ... I googled config file structure and the first thing it found was another post asking the same question, by me 5 years ago !

http://www.dbmonster.com/Uwe/Forum.a...-file-question

I don't know Perl but I know the read/write calls must be able to manage bytes, not characters. Can sysread/write do this ?

Andre

________________________________
From: Martin Bowes [mailto:martin.bowes (AT) ctsu (DOT) ox.ac.uk]
Sent: November 25, 2011 10:37 AM
To: Laframboise, André
Cc: Ingres and related product discussion forum
Subject: RE: Editing the Ingres config file.
Hi Andre,

I'm using a Perl program with a cunning set of sysread/syswrite routines toget the data using unpack and then write it back after repacking the edited data.

Marty

From: Laframboise, André [mailto:Andre.Laframboise (AT) bac-lac (DOT) gc.ca]
Sent: 25 November 2011 15:35
To: Martin Bowes
Subject: Editing the Ingres config file.

Hi Marty,

The config file is a binary file. I think you have to make sure you're editor is not text based.
Years ago I tried editing it a few times with various editors but none worked.

I eventually wrote a small C program to replace some characters in it and it worked as long as the I replaced existing characters only.
I think there's a set structure to that file so string lengths have to remain the same.

But a config file editor would be nice.

Andre



Andre C. Laframboise
Technical Advisor , Database and Data Administration
Conseiller Technique, Administration de base de données et de données
Application Services / Services d'Application
Application Development / Développement d'application
Library and Archives Canada / Bibliothèque et Archives Canada
550, boul. de la Cité, Gatineau, QC
Canada K1A 0N4
andre.laframboise (AT) lac-bac (DOT) gc.ca
Téléphone / Telephone 819-997-7407
Télécopieur / Facsimile 819-994-6835
Gouvernement du Canada / Government of Canada
www.collectionscanada.gc.ca<http://www.collectionscanada.gc.ca/>

On Nov 25, 5:53*pm, Martin Bowes <martin.bo... (AT) ctsu (DOT) ox.ac.uk> wrote:
also unbuffered, if I may add