Description
int
dio_seek ( resource fd, int pos, int whence)
The function dio_seek() is used to change the
file position of the file with descriptor
resource. The parameter
whence specifies how the position
pos should be interpreted:
SEEK_SET - specifies that pos is
specified from the beginning of the file
SEEK_CUR - Specifies that pos is a
count of characters from the current file position. This count
may be positive or negative
SEEK_END - Specifies that pos is a
count of characters from the end of the file. A negative count
specifies a position within the current extent of the file; a
positive count specifies a position past the current end. If
you set the position past the current end, and actually write
data, you will extend the file with zeros up to that
position
