func bin_search(searchkey []byte, fh io.Reader) []byte {
var c int
var top, mid, bot, diff int64
var length int
diff = 666
top = 0
fileStats, err := fh.Stat()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to get the stats of file: %s\n", err)
os.Exit(1)
}
bot = fileStats.Size
mid = (bot - top) / 2
line := make([]byte, LINE_LEN)
for {
newpos, err := fh.Seek(mid-1, os.SEEK_SET)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while Seeking: %s\n", err)
os.Exit(1)
}
if newpos != mid-1 {
fmt.Fprintf(os.Stderr, "Something happened while Seeking: %d != %d\n", newpos, mid-1)
os.Exit(1)
}
}
}