UST strncpy assert fix

fix off by one in strncpy and write asserts(). Shows only when the event
reserved fits the exact end of buffer.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/libust/buffers.h b/libust/buffers.h
index 63449d6c024194fca1341769083a55cdfb93ff4b..9fedc487f1847c65a707981016023c7c4ee9e655 100644 (file)
--- a/libust/buffers.h
+++ b/libust/buffers.h
@@ -522,7 +522,8 @@ static __inline__ int ust_buffers_write(struct ust_buffer *buf, size_t offset,
        size_t buf_offset = BUFFER_OFFSET(offset, buf->chan);
 
        assert(buf_offset < buf->chan->subbuf_size*buf->chan->subbuf_cnt);
-       assert(buf_offset + len < buf->chan->subbuf_size*buf->chan->subbuf_cnt);
+       assert(buf_offset + len
+              <= buf->chan->subbuf_size*buf->chan->subbuf_cnt);
 
        ust_buffers_do_copy(buf->buf_data + buf_offset, src, len);
 
@@ -590,7 +591,8 @@ int ust_buffers_strncpy(struct ust_buffer *buf, size_t offset, const void *src,
        int terminated;
 
        assert(buf_offset < buf->chan->subbuf_size*buf->chan->subbuf_cnt);
-       assert(buf_offset + len < buf->chan->subbuf_size*buf->chan->subbuf_cnt);
+       assert(buf_offset + len
+              <= buf->chan->subbuf_size*buf->chan->subbuf_cnt);
 
        copied = ust_buffers_do_strncpy(buf->buf_data + buf_offset,
                                        src, len, &terminated);