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Re: FILE Pointer
- From: Muthukumar Ratty <muthu at iqmail dot net>
- To: Eljay Love-Jensen <eljay at adobe dot com>
- Cc: Bharathi S <bharathi at lantana dot tenet dot res dot in>, GNU GCC <gcc-help at gcc dot gnu dot org>
- Date: Tue, 27 May 2003 21:58:30 -0700 (PDT)
- Subject: Re: FILE Pointer
On Tue, 27 May 2003, Eljay Love-Jensen wrote:
> Hi Bharathi,
>
> >How to get the filename from the filepointer?
>
> You cannot.
Actually, if it is Linux there is a way to find it (may be in *BSD too?).
First get the fd entry using "fileno", and then use that in "getdents" to
get the name.
Look at
1. fileno (3) and
2. getdents (2)
Muthu.
>
> >What are the other informations we can get from FILE structure?
>
> feof(fp) -- tells you if the file is at the end of file
> ferror(fp) -- test whether read/write error has occurred
> ftell(fp) -- tells you the offset into the file
> fileno(fp) -- (non-ANSI) tells you the file descriptor of the fp
> fgetpos(fp, &pos) -- for noting positions, used in conjunction with fsetpos
>
> HTH,
> --Eljay
>