How to FSEEK previous line of text?

[maslar at iccgcc.decnet.ab.com]

Does anyone know of a function or technique that is similar to FSEEK
that will allow me to go back to the previous line? The lines of
ASCII text are being read from a file by the FGETS function. The
length of the lines varies. I'm writing an application-specific
file reader, and need to implement a PageUp and UpArrow feature.

Thanks,

Mark Maslar

INTERNET: maslar at icd.ab.com