--- src/common.c.fix-crackrock	Thu Dec 23 12:48:25 2004
+++ src/common.c	Thu Dec 23 12:51:59 2004
@@ -19,6 +19,7 @@
  * Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include <errno.h>
 #include "common.h"
 #ifdef HAVE_CURSES
 #include "curses.h"
@@ -612,17 +612,16 @@
 int             SetShowNoninter(int dev)
 {
 /* Change or display settings from the command line. */
-	char           *devstr, dest;
+	char           *devstr;
 	int             change = 0, tmp, left, right;
 	/* Increase or decrease levels, optionally by a number. */
 	if (!strncmp(optarg, "+", 1) || !strncmp(optarg, "-", 1)) {
 		ErrorExitWarn(ReadLevel(dev, &tmp), 'e');
 		right = tmp >> 8;	/* I'll take the high byte, */
 		left = tmp & 0xFF;	/* and you take the low byte. */
-		strncpy(&dest, (optarg + 1), 3);
-		change = 1;	/* For compatibility with versions 1.15 to 1.17, assume one if no number was given. */
-		if (atoi(&dest))
-			change = atoi(&dest);
+		change = (int) strtol(optarg, NULL, 10);
+		if (errno)
+			change = 1;	/* For compatibility with versions 1.15 to 1.17, assume one if no number was given. */
 		if (*optarg == '+') {	/* increase */
 			right += change;
 			left += change;