From: Guido van Rossum <guido@python.org>
Date: Tue, 19 Oct 1999 04:47:13 +0000 (+0000)
Subject: Fix PR#110 -- bad input ("====") for a2b_base64() caused it to call
X-Git-Tag: v1.6a1~816
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eba24bb920339038b473e8714690080009cb0d3a;p=python

Fix PR#110 -- bad input ("====") for a2b_base64() caused it to call
_PyString_Resize() with a negative size.
---

diff --git a/Modules/binascii.c b/Modules/binascii.c
index 73dc27a894..601169cfe3 100644
--- a/Modules/binascii.c
+++ b/Modules/binascii.c
@@ -384,6 +384,8 @@ binascii_a2b_base64(self, args)
 	}
 	/* and remove any padding */
 	bin_len -= npad;
+	if (bin_len < 0)
+		bin_len = 0;
 	/* and set string size correctly */
 	_PyString_Resize(&rv, bin_len);
 	return rv;