From 9a7f2d51807c182c7cb7e554c3be109ccd066ad8 Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Tue, 4 May 2021 06:44:28 -0700
Subject: buf: bugfix: int-buf, uint-buf refer to alloc size.

* buf.c (int_buf, uint_buf): Refer to the buffer length b->len
rather than the underlying allocation size b->size.
Referring to b->size will not only produce the wrong value
when it is larger than len, but b->size can be null for a
borrowed buffer, producing a crash.

* tests/012/buf.tl: Tests.
---
 tests/012/buf.tl | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 tests/012/buf.tl

(limited to 'tests/012/buf.tl')

diff --git a/tests/012/buf.tl b/tests/012/buf.tl
new file mode 100644
index 00000000..1c8040d6
--- /dev/null
+++ b/tests/012/buf.tl
@@ -0,0 +1,4 @@
+(load "../common")
+
+(vtest (uint-buf (make-buf 8 255 16)) (pred (expt 2 64)))
+(test (int-buf (make-buf 8 255 16)) -1)
-- 
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