sh: Allow arbitrarily large numbers in break and continue.

The argument is capped to loopnest, so strtol()'s [ERANGE] can be ignored.

1 files changed, 9 insertions, 1 deletions

diff --git a/bin/sh/eval.c b/bin/sh/eval.c
index 4f7559e..3fd3050 100644
--- a/bin/sh/eval.c
+++ b/bin/sh/eval.c
@@ -1250,8 +1250,16 @@ bltincmd(int argc, char **argv)
 int
 breakcmd(int argc, char **argv)
 {
-	int n = argc > 1 ? number(argv[1]) : 1;
+	long n;
+	char *end;
 
+	if (argc > 1) {
+		/* Allow arbitrarily large numbers. */
+		n = strtol(argv[1], &end, 10);
+		if (!is_digit(argv[1][0]) || *end != '\0')
+			error("Illegal number: %s", argv[1]);
+	} else
+		n = 1;
 	if (n > loopnest)
 		n = loopnest;
 	if (n > 0) {