From fd44209c9511879c97bfa427af5f379bd4bb76bb Mon Sep 17 00:00:00 2001
From: Stian Skjelstad <stian.skjelstad@gmail.com>
Date: Mon, 11 Nov 2024 20:59:32 +0100
Subject: [PATCH] Do not attempt to divide by zero, if a song is reported as
 zero long.

---
 cpiface/cpiface.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cpiface/cpiface.c b/cpiface/cpiface.c
index afd86e92..e82f8098 100644
--- a/cpiface/cpiface.c
+++ b/cpiface/cpiface.c
@@ -696,7 +696,12 @@ static void GString_pos_render (const void *inputa, const void *inputb, const vo
 		case 4: displaystr (lineno, *x, 0x09, "position:", 9); (*x) += 9; break;
 	}
 
-	snprintf (b, 4, "%3d", (int)((*pos) * 100 / (*filesize)));
+	if ((*filesize)==0)
+	{
+		snprintf (b, 4, "NUL");
+	} else {
+		snprintf (b, 4, "%3d", (int)((*pos) * 100 / (*filesize)));
+	}
 	displaystr (lineno, *x, 0x0f,   b, 3); (*x)+=3;
 	displaychr (lineno, *x, 0x07, '%', 1); (*x)+=1;