From: Paul Shirley <Paul AT no DOT spam DOT please>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Long filename problem
Date: Mon, 16 Jun 1997 22:15:57 +0100
Organization: wot? me?
Distribution: world
Message-ID: <eY0iFHAN0apzEwfD@foobar.co.uk>
References: <33A4C1C8 DOT 2FB9 AT tiac DOT net>
Reply-To: Paul Shirley <Paul AT chocolat DOT obvious DOT fake DOT foobar DOT co DOT uk>
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In article <33A4C1C8 DOT 2FB9 AT tiac DOT net>, Claude Sassine <claude AT tiac DOT net>
writes
>In trying to create a file from with a C program with filename longer
>than 8 characters, two questions came about. One, can the size the
>filename be changed by adjusting a header file variable? The stdio.h
>file defines the FILENAME_MAX=260, but the only 8 characters are
>permited. Is there some other variable that can changed to accomplish
>this?
>
This is an OS specific limit, its the maximum length of a path:filename
string that Win32 OS calls will handle. You cannot increase it, however
theres no restriction to 8 character filenames, unless you impose the
restriction yourself. Just make sure you don't use >FILENAME_MAX for the
path:file combination, and the filename part cannot exceed the OS limit
(not sure what that is but 250 chars should be safe).

>Secondly, the information in a open file does not seem to be written
>onto the hard drive until after the program ends. This was done using
>the fopen and fclose commands. The header files seem to offer more
>processing than I am aware of, but time has not allowed me the chance to
>read the information at the DJGPP website. Can the data onto be stored
>onto hard drive, intermittently, as the program continues processing?

Have a look at fflush (info libc alpha fflush), just call it to get
buffered data written to disk.

---
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