BUG/MAJOR: buffers: fix get_buffer_nc() for data at end of buffer

This function incorrectly dealt with the case where data doesn't
wrap but lies at the end of the buffer, resulting in Lukas' reported
data corruption with HTTP/2. No backport is needed, it was introduced
for HTTP/2 in 1.8-dev.

diff --git a/include/common/buffer.h b/include/common/buffer.h
index f11d6a9621bfa9695d40c76522eaa148b09d7cd6..c6fb2fea5ebcdce4bf1be2e9040446f85f91d103 100644 (file)
--- a/include/common/buffer.h
+++ b/include/common/buffer.h
@@ -543,7 +543,7 @@ static inline int bo_getblk_nc(struct buffer *buf, char **blk1, int *len1, char
                return 2;
        }
 
-       *blk1 = buf->p - buf->o;
+       *blk1 = bo_ptr(buf);
        *len1 = buf->o;
        return 1;
 }