[Nbd] [PATCH] Fix handling of oversize writes

[Alex Bligh <alex@...872...>]

Oversize writes were attempting to write the whole length of the
write each time, rather than BUFSIZ chunks. This could cause
disk corruption.

Available from git.alex.org.uk as usual.
-- 
Alex Bligh

Signed-off-by: Alex Bligh <alex@...872...>
---
 nbd-server.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/nbd-server.c b/nbd-server.c
index 695deef..d57120b 100644
--- a/nbd-server.c
+++ b/nbd-server.c
@@ -1568,7 +1568,7 @@ int mainloop(CLIENT *client) {
 					consume(client->net, buf, len-currlen, BUFSIZE);
 					continue;
 				}
-				if (expwrite(request.from, buf, len, client,
+				if (expwrite(request.from, buf, currlen, client,
 					     request.type & NBD_CMD_FLAG_FUA)) {
 					DEBUG("Write failed: %m" );
 					ERROR(client, reply, errno);
-- 
1.7.4.1