After an FD
is obtained, you can read
and write
to the file according to the mode that was used to open it.
For example, to read from the program.cfg
file opened above, you can use the read
function.
tmpbuf := array[] of byte; n = sys->read(cfgfd, tmpbuf, 80);To write the bytes read to the
file.tmp
created above, you can use the write
function:
write(tmp, tmpbuf, 80);