From: Guido van Rossum <guido@python.org>
Date: Sat, 25 Jul 1998 04:14:37 +0000 (+0000)
Subject: Make sure that at least one digit has been consumed in atoi().
X-Git-Tag: v1.5.2a1~216
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=76310fcc475ce58b3c8495a963519237722e2860;p=python

Make sure that at least one digit has been consumed in atoi().
---

diff --git a/Modules/stropmodule.c b/Modules/stropmodule.c
index 2d11851e7c..73a35c9b5c 100644
--- a/Modules/stropmodule.c
+++ b/Modules/stropmodule.c
@@ -705,6 +705,10 @@ strop_atoi(self, args)
 		x = (long) PyOS_strtoul(s, &end, base);
 	else
 		x = PyOS_strtol(s, &end, base);
+	if (end == s || !isxdigit(end[-1])) {
+		PyErr_SetString(PyExc_ValueError, "no digits in int constant");
+		return NULL;
+	}
 	while (*end && isspace(Py_CHARMASK(*end)))
 		end++;
 	if (*end != '\0') {