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.desnoy...@efficios.com>
---
libust/buffers.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Index: ust/libust/buffers.h
===================================================================
--- ust.orig/libust/buffers.h 2010-08-17 18:14:30.000000000 -0400
+++ ust/libust/buffers.h 2010-08-17 18:15:25.000000000 -0400
@@ -522,7 +522,8 @@ static __inline__ int ust_buffers_write(
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_buffe
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);
--
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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