Do not read from index -1 of an array.

NetBSD rev. 1.16 (Oct 13, 2012) by dholland@NetBSD via maintainer pjanzen@.

diff --git a/games/cribbage/score.c b/games/cribbage/score.c
index 5988957..a5a1b32 100644 (file)
--- a/games/cribbage/score.c
+++ b/games/cribbage/score.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: score.c,v 1.9 2009/10/27 23:59:24 deraadt Exp $       */
+/*     $OpenBSD: score.c,v 1.10 2014/05/08 23:12:40 schwarze Exp $     */
 /*     $NetBSD: score.c,v 1.3 1995/03/21 15:08:57 cgd Exp $    */
 
 /*-
@@ -295,7 +295,7 @@ pegscore(CARD crd, CARD tbl[], int n, int sum)
        if (!n)
                return (scr);
        j = 1;
-       while ((crd.rank == tbl[n - j].rank) && (n - j >= 0))
+       while ((j <= n) && (crd.rank == tbl[n - j].rank))
                ++j;
        if (j > 1)
                return (scr + ichoose2[j]);