break;
}
}
- timeout_ms -= (unsigned)monotonic_ms() - prevTime;
- } while (timeout_ms > 0);
+ timeout_ms -= (unsigned)monotonic_ms() - prevTime + 1;
+
+ /* We used to check "timeout_ms > 0", but
+ * this is more under/overflow-resistant
+ * (people did see overflows here when system time jumps):
+ */
+ } while ((unsigned)timeout_ms <= 2000);
ret:
close(s);