aboutsummaryrefslogtreecommitdiff
path: root/lib/io/src/xfrm
diff options
context:
space:
mode:
Diffstat (limited to 'lib/io/src/xfrm')
-rw-r--r--lib/io/src/xfrm/ostream.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/io/src/xfrm/ostream.c b/lib/io/src/xfrm/ostream.c
index 79ed49a..e55e38c 100644
--- a/lib/io/src/xfrm/ostream.c
+++ b/lib/io/src/xfrm/ostream.c
@@ -82,10 +82,14 @@ static int xfrm_append(ostream_t *strm, const void *data, size_t size)
if (diff > size)
diff = size;
- memcpy(xfrm->inbuf + xfrm->inbuf_used, data, diff);
+ if (data == NULL) {
+ memset(xfrm->inbuf + xfrm->inbuf_used, 0, diff);
+ } else {
+ memcpy(xfrm->inbuf + xfrm->inbuf_used, data, diff);
+ data = (const char *)data + diff;
+ }
xfrm->inbuf_used += diff;
- data = (const char *)data + diff;
size -= diff;
}