Change the limit on the input size for b2a_base64 to what will fit in
memory, rather than the standard's 57.
This fixes SF bug #473009.
diff --git a/Modules/binascii.c b/Modules/binascii.c
index 4ddea56..643450c 100644
--- a/Modules/binascii.c
+++ b/Modules/binascii.c
@@ -135,7 +135,9 @@
};
#define BASE64_PAD '='
-#define BASE64_MAXBIN 57 /* Max binary chunk size (76 char line) */
+
+/* Max binary chunk size; limited only by available memory */
+#define BASE64_MAXBIN (INT_MAX/2 - sizeof(PyStringObject))
static unsigned char table_b2a_base64[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";