1typedef long long curl_off_t; 2int tool_seek_cb(void *userdata, curl_off_t offset, int whence) 3{ 4 if(offset > 0x7FFFFFFFLL - 0x1LL) 5{ 6 curl_off_t left = offset; 7 while(left) 8{ 9 long step = (left > 0x7FFFFFFFLL - 0x1LL) ? 2147483647L - 1L : (long)left; 10 left -= step; 11 } 12 } 13} 14