From 76b9347a5fa3a0970527c6ee1b97ef1c714f636b Mon Sep 17 00:00:00 2001 From: Fazlul Shahriar Date: Tue, 13 Nov 2018 23:11:31 -0500 Subject: acme: avoid division by zero when resizing col (#189) To reproduce, create a column with at least two windows and resize acme to have almost zero height. --- src/cmd/acme/cols.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'src/cmd/acme/cols.c') diff --git a/src/cmd/acme/cols.c b/src/cmd/acme/cols.c index 10e014ee..b1fe23ba 100644 --- a/src/cmd/acme/cols.c +++ b/src/cmd/acme/cols.c @@ -250,8 +250,12 @@ colresize(Column *c, Rectangle r) w->maxlines = 0; if(i == c->nw-1) r1.max.y = r.max.y; - else - r1.max.y = r1.min.y+(Dy(w->r)+Border)*Dy(r)/Dy(c->r); + else{ + r1.max.y = r1.min.y; + if(Dy(c->r) != 0){ + r1.max.y += (Dy(w->r)+Border)*Dy(r)/Dy(c->r); + } + } r1.max.y = max(r1.max.y, r1.min.y + Border+font->height); r2 = r1; r2.max.y = r2.min.y+Border; -- cgit v1.2.3