9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: "Mathieu" <lejatorn@gmail.com>
To: 9fans@9fans.net
Subject: [9fans] another webfs question
Date: Fri, 27 Mar 2009 00:11:01 +0100	[thread overview]
Message-ID: <3587eb7837ae411c3c512564d9997e1c@smgl.fr.eu.org> (raw)

Hi all,

It seems I'm hitting this error when sending some GET requests:

In /sys/src/cmd/webfs/url.c:

	if(strstr(url, "%00")){
		werrstr("escaped NUL in URI");
		return -1;
	}

I haven't fully understood the comment above, especially if it is against
the RFC to have an escaped NUL in an url, but this can actually happen,
at least with queries to a bittorrent tracker. For example when specifying
the info hash of a specific torrent when sending a scrape request:

http://bttracker.debian.org:6969/scrape?info_hash=%F1%AE%D2%E5%15%A0%BD%F1%41%54%9D%44%00%47%AB%97%81%2B%69%16
(13th char in the info hash is a NUL)

I get a reply to that one both with wget on linux or hget on plan 9,
while webfs gives the error from the code above.

So is it webfs that needs fixing for that case, or are the other tools
breaking some RFC with that?

Cheers,
Mathieu




             reply	other threads:[~2009-03-26 23:11 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-26 23:11 Mathieu [this message]
2009-03-27 12:04 ` erik quanstrom
2009-03-27 12:52   ` Devon H. O'Dell
2009-03-27 13:10     ` Mathieu Lonjaret
2009-03-27 13:52     ` erik quanstrom
2009-03-27 14:07       ` Devon H. O'Dell
2009-03-27 14:35         ` erik quanstrom
2009-03-27 15:20           ` [9fans] porting sam Benjamin Huntsman
2009-03-29 16:22             ` Skip Tavakkolian

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3587eb7837ae411c3c512564d9997e1c@smgl.fr.eu.org \
    --to=lejatorn@gmail.com \
    --cc=9fans@9fans.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).