Deutsch   English   Français   Italiano  
<v4c6cj$1lki1$2@dont-email.me>

View for Bookmarking (what is this?)
Look up another Usenet article

Path: ...!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: Running an editor from ANSI C
Date: Wed, 12 Jun 2024 15:04:19 +0200
Organization: A noiseless patient Spider
Lines: 48
Message-ID: <v4c6cj$1lki1$2@dont-email.me>
References: <v3pge7$uf2i$1@dont-email.me> <v3r2pl$16mtl$1@dont-email.me>
 <v3r7v8$1b57j$1@dont-email.me> <v3rek5$1c4i5$1@dont-email.me>
 <v3rrtm$1e6g8$1@dont-email.me> <v3ru84$1eafb$1@dont-email.me>
 <87o78dzw1a.fsf@nosuchdomain.example.com> <v3tkmb$1o860$3@dont-email.me>
 <v3uk0l$20s0s$2@dont-email.me> <v3uoeo$21g4g$5@dont-email.me>
 <v3v6jt$23q0b$2@dont-email.me> <v3vk3m$265uv$1@dont-email.me>
 <v44itr$3jn4i$1@dont-email.me> <v46o75$dnnu$1@dont-email.me>
 <v46qj9$e4lf$1@dont-email.me> <v46uha$fj5k$1@dont-email.me>
 <v47c92$hv04$1@dont-email.me> <v4bl16$1ieto$1@dont-email.me>
 <v4bton$2vgg$1@news.gegeweb.eu> <v4bvns$1kf32$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Wed, 12 Jun 2024 15:04:20 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="56b4a0ed48525cf719a93689486bb34c";
	logging-data="1757761"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX18pvpN2w09j4NJ81vuel9i3DKciwcnThA4="
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.11.0
Cancel-Lock: sha1:wKI8zP2yXs0+dUnJ7Ve/kaeoLLI=
Content-Language: en-GB
In-Reply-To: <v4bvns$1kf32$1@dont-email.me>
Bytes: 3812

On 12/06/2024 13:10, Malcolm McLean wrote:
> On 12/06/2024 11:37, tTh wrote:
>> On 6/12/24 10:08, Malcolm McLean wrote:
>>
>>>> I'd expect to run ksh commands from within ksh, bash commands from
>>>> within bash, etc.
>>>>
>>>> I wouldn't expect a filesystem to be part of the shell at all.
>>>>
>>>
>>> You'd expect to have a FileSystem file, and to type in at your ksh orz
>>> zsh, cd "myfilesysyem.xml" and for ksh to mount it. But of course ksh
>>> can't do that, because it doesn't recognise that format.
>>
>>     Unless someone writes a module for fuse that allows this kind
>>     of manipulation.
>>
>>     I've already come across this kind of thing, which made it
>>     possible to read images from floppy disks of old systems.
>>
> I'd be interested in doing that. And may thnaks to David Brown for 
> mentining that this isnpossible. However it wouldn't be part of Baby X.
> 
> I had a quick look at the fuse webite, and I couldn't for the life of me 
> work out how to write a short fuse script to mount such a simple 
> directory structure as a FileSystem XML file.
> 
> I'm sure it's possible and not too hard to do. But it's the sort of 
> thing people do for money.
> 

I'm sure some people do it for money - but I think others make libfuse 
filesystems for fun.  Typical uses include accessing remote data (such 
as over ssh, webdav, google drives), supporting weird, awkward or 
outdated filesystems (like NTFS), accessing data within packed or 
encrypted files (like zip files or backup files), prototyping 
filesystems that you hope will make it to the Linux kernel one day, 
exposing interfaces or control information like a file system, and so on.

At its simplest, it's just a matter of implementing functions for 
listing a directory, opening and closing files, reading and writing 
them, and similar functions.  I'd imagine that write support for files 
within your XML file would be awkward, but I would be very surprised if 
anything in a libfuse solution is at all harder than implementing the 
same thing in your shell.