458379 - Firefox hangs when saving file to a pipe

Status: RESOLVED INACTIVE

(Core :: General, defect)

Description

[Carlos G.]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; es-AR; rv:1.9.0.3) Gecko/2008092416 Firefox/3.0.3
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; es-AR; rv:1.9.0.3) Gecko/2008092416 Firefox/3.0.3

I can't save a page or download a file to a pipe.

Reproducible: Always

Steps to Reproduce:
1.create a pipe with mkfifo
2.start a process listening on the pipe
3.Within Firefox, try to save a file to that pipe
Actual Results:  
Firefox freezes and crashes as soon as I click on the pipe's name.

Expected Results:  
The process listening on the pipe reading data sent by Firefox.

Comment 1

[timeless]

Does it hang or crash? If firefox doesn't quit, it didn't crash.

Comment 2

[Carlos G.]

It hangs. (Sorry about the wrong term; I've corrected the summary)

Comment 3

[Carlos G.]

After running strace I've discovered that the problem is that, for some reason, Firefox first tries to open the pipe file as read-only ("RD_ONLY"), and because there is a process listening on the other side it enters a deadlock, as both (Firefox and the process) are listening.

Comment 4

[Benjamin Smedberg]

Not an XPCOM bug, almost certainly. I think we should just detect and refuse to save data to named pipes.

Comment 5

[Wayne Mery (:wsmwk)]

dup of bug 394774?