help to find find filename usingFile pointer in c

arunkumar_mca · #1 (**permalink**) 08-07-2007

Hi ..

I am having a file pointer .. it have declared some where tough to find out that ..Can we find out the filename associated with file pointer ...

i mean is there any function FILEPOINTER.filename() is there in c ??...

Thanks,
Arun

blowtorch · #2 (**permalink**) 08-07-2007

Not AFAIK. You cannot find the filename from a file pointer or a file descriptor. This has been discussed here before. You can search the site for more info.

Perderabo · #3 (**permalink**) 08-07-2007

In the case of "prog_a | prog_b", prog_b won't have any name associated with FD 0. There are lots of problems like that. lsof is a program that can display pretty good info for most FD's of most processes, but it must run suid'ed to root. Get lsof and run it to see if that sort of info could help you. If so, use popen() to run lsof from your process and parse the lsof output to get what you need. Something like this is the only way.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Find and store files based on FileName and Modified Time	edisonantus	UNIX for Advanced & Expert Users	2	02-19-2008 02:25 PM
find formatted filename with date time	dpath2o	UNIX for Advanced & Expert Users	6	02-05-2008 11:20 PM
command find returned bash: /usr/bin/find: Argument list too long	yacsil	Shell Programming and Scripting	1	12-15-2003 06:38 PM
find filename based on file content	kollerj	UNIX for Dummies Questions & Answers	4	06-02-2001 01:31 PM
search for hardlinks based on filename via find command	hunternjb	UNIX for Dummies Questions & Answers	2	03-27-2001 12:07 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by