thanks to the nice property of my reimplementation of getn to also

return a value in case of an error (0 or the partial result, which
is the full result in case of trailing junk even), using it to rid
atoi() is possible, saving 9t 4d 1i

misc.c

@@ -3,7 +3,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.31 2006/11/10 03:54:38 tg Exp $\t"
+__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.32 2006/11/10 04:03:59 tg Exp $\t"
 	MKSH_SH_H_ID);
 
 unsigned char chtypes[UCHAR_MAX + 1];	/* type bits for unsigned char */
@@ -416,7 +416,7 @@ parse_args(char **argv,
 int
 getn(const char *s, int *ai)
 {
-	int i, c;
+	int i, c, rv = 0;
 	bool neg = false;
 
 	do {
@@ -427,19 +427,22 @@ getn(const char *s, int *ai)
 		c = *s++;
 	} else if (c == '+')
 		c = *s++;
-	i = 0;
+	*ai = i = 0;
 	do {
-		*ai = i;
 		if (!isdigit(c))
-			return (0);
+			goto getn_out;
 		i *= 10;
 		if (i < *ai)
 			/* overflow */
-			return (0);
+			goto getn_out;
 		i += c - '0';
+		*ai = i;
 	} while ((c = *s++));
+	rv = 1;
 
-	*ai = neg ? -i : i;
+ getn_out:
+	if (neg)
+		*ai = -*ai;
 	return (1);
 }