copying and overwriting a file using file descriptor

[aki]

Hi ,

i have two basic requirement on linux platform . I am using C language
to do this .
1) copying one file to another (assuming i know their file
descriptors)
2) Overwriting a file using it file descriptor .

Please guide.

regards
Aki

 

[Keith Thompson]

i have two basic requirement on linux platform . I am using C language
to do this .
1) copying one file to another (assuming i know their file
descriptors)
2) Overwriting a file using it file descriptor .

File descriptors are a Unix concept, not a C concept.

I'm sure the folks over in comp.unix.programmer would be glad to help
you with this. Just to make things easier, give them your instructor's
e-mail address so they can submit their solutions to your homework
assignment directly.

(My apologies if this isn't a homework assignment, but it certainly
looks like one.)