+ if (copied == len) {
+ /*
+ * Deal with non-terminated string.
+ */
+ assert(!terminated);
+ offset += copied - 1;
+ buf_offset = BUFFER_OFFSET(offset, buf->chan);
+ /*
+ * Underlying layer should never ask for writes across
+ * subbuffers.
+ */
+ assert(buf_offset
+ < buf->chan->subbuf_size*buf->chan->subbuf_cnt);
+ ust_buffers_do_memset(buf->buf_data + buf_offset, '\0', 1);
+ return;
+ }
+
+ /*
+ * Deal with incomplete string.
+ * Overwrite string's \0 with X too.
+ */
+ cpy = copied - 1;
+ assert(terminated);
+ len -= cpy;
+ offset += cpy;
+ buf_offset = BUFFER_OFFSET(offset, buf->chan);
+
+ /*
+ * Underlying layer should never ask for writes across subbuffers.
+ */
+ assert(buf_offset
+ < buf->chan->subbuf_size*buf->chan->subbuf_cnt);