Relationship between FILE * and channel number

[jorba101]

I have following question:

Once I open a file with fopen(), is there any way in which I can get its channel identifier? (i.e. the number I'd get if I was openning the same file with syscall open()).

Thanks.-

[gpraghuram]

I have following question:

Once I open a file with fopen(), is there any way in which I can get its channel identifier? (i.e. the number I'd get if I was openning the same file with syscall open()).

Thanks.-

Did u check the structure details of the FILE?
I think there will be a way to that.

Raghu

[JosAH]

Search for a function fileno(FILE* file). It should be declared in <fildes.h>
This is all non-standard stuff of course ...

kind regards,

Jos

[jorba101]

Is it possible that fildes.h does not exist in UNIX? (I couldn't find it in http://www.opengroup.org/onlinepubs/007908799/xshix.html).

On the other hand, I found fdopen() standard UNIX function that will do.

Thanks all,