Module Name: src
Committed By: charlotte
Date: Wed Feb 28 23:14:37 UTC 2024
Modified Files:
src/games/rain: rain.c
Log Message:
rain(6): Avoid division by zero
If there were exactly 4 LINES or COLS then we'd attempt to draw a raindrop
at some value mod 0, which is invalid.
To generate a diff of this commit:
cvs rdiff -u -r1.22 -r1.23 src/games/rain/rain.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/games/rain/rain.c
diff -u src/games/rain/rain.c:1.22 src/games/rain/rain.c:1.23
--- src/games/rain/rain.c:1.22 Wed Oct 14 18:32:04 2020
+++ src/games/rain/rain.c Wed Feb 28 23:14:37 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: rain.c,v 1.22 2020/10/14 18:32:04 nia Exp $ */
+/* $NetBSD: rain.c,v 1.23 2024/02/28 23:14:37 charlotte Exp $ */
/*
* Copyright (c) 1980, 1993
@@ -39,7 +39,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 19
#if 0
static char sccsid[] = "@(#)rain.c 8.1 (Berkeley) 5/31/93";
#else
-__RCSID("$NetBSD: rain.c,v 1.22 2020/10/14 18:32:04 nia Exp $");
+__RCSID("$NetBSD: rain.c,v 1.23 2024/02/28 23:14:37 charlotte Exp $");
#endif
#endif /* not lint */
@@ -97,6 +97,8 @@ main(int argc, char **argv)
errx(0, "couldn't initialize screen");
cols = COLS - 4;
lines = LINES - 4;
+ if (cols == 0) cols++;
+ if (lines == 0) lines++;
(void)signal(SIGHUP, onsig);
(void)signal(SIGINT, onsig);
