link_sim: avoid dividing by 0

Reported in #5 Signed-off-by: Olivier Tilmans <[email protected]>
cnp3 · Oct 27, 2015 · bbb3c4a · bbb3c4a
1 parent 7aaafd9
commit bbb3c4a
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/link_sim.c b/link_sim.c
@@ -159,9 +159,11 @@ static inline int simulate_link(char *buf, int len)
  /* Do we want to simulate delay? */
  if (delay) {
  /* Random delay to add is capped to 10s */
- unsigned int applied_delay = RAND_PERCENT > 49 ?
- delay + rand() % jitter :
- delay - rand() % jitter;
+ unsigned int applied_delay = jitter ?
+ (RAND_PERCENT > 49 ?
+ delay + rand() % jitter :
+ delay - rand() % jitter) :
+ delay;
  applied_delay %= 10000;
  LOG_PKT_FMT(buf, "Delayed packet by %u ms\n", applied_delay);
  /* Create a slot for the packet queue */