From e6587d3b977e684b192d2709edf485ba1b38a27b Mon Sep 17 00:00:00 2001
From: Alexandre Ratchov <alex@caoua.org>
Date: Fri, 17 May 2019 07:25:16 +0200
Subject: [PATCH] Fix integer multiplication overflow in block size
 calculation.

---
 aucat/aucat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/aucat/aucat.c b/aucat/aucat.c
index 68293af..af8a761 100644
--- a/aucat/aucat.c
+++ b/aucat/aucat.c
@@ -278,7 +278,8 @@ slot_init(struct slot *s)
 	}
 #endif
 	s->bpf = s->afile.par.bps * (s->cmax - s->cmin + 1);
-	s->round = (dev_round * s->afile.rate + dev_rate - 1) / dev_rate;
+	s->round = ((long long)dev_round * s->afile.rate +
+	    dev_rate - 1) / dev_rate;
 
 	bufsz = s->round * (dev_bufsz / dev_round);
 	bufsz -= bufsz % s->round;