ubidump.py 文件源码

def seek(self, newpos, whence=0):
        if whence==0:
            if newpos < self.pos:
                print("WARNING: can't seek stdout backwards")
                return -1
            if newpos > self.pos:
                self.seekforward(newpos - self.pos)
            self.pos = newpos
        elif whence==1:
            if newpos < 0:
                print("WARNING: can't seek stdout backwards")
                return -1
            if newpos > 0:
                self.seekforward(newpos)
            self.pos += newpos
        else:
            print("WARNING: can't seek stdout from EOF")
            return -1