summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRichard W.M. Jones <rjones@redhat.com>2011-03-18 11:21:55 +0000
committerRichard W.M. Jones <rjones@redhat.com>2011-03-18 11:21:55 +0000
commit1e68f84c5a46f3ff650368a897bd4113bd3f4aea (patch)
tree502897efd9b496ab0f8a666cd431b5fed1d82794
parent65852011d8f5150c5c0bcbfeac90e2fd784905c5 (diff)
downloadlibguestfs-1e68f84c5a46f3ff650368a897bd4113bd3f4aea.tar.gz
libguestfs-1e68f84c5a46f3ff650368a897bd4113bd3f4aea.tar.xz
libguestfs-1e68f84c5a46f3ff650368a897bd4113bd3f4aea.zip
daemon: Print error for invalid chunk.cancel field.
The chunk.cancel field should always be [0|1]. If it is not then something has gone badly wrong -- probably loss of synchronization. If this occurs print a debug message and return error from receive_file function.
-rw-r--r--daemon/proto.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/daemon/proto.c b/daemon/proto.c
index 90a83886..cef11463 100644
--- a/daemon/proto.c
+++ b/daemon/proto.c
@@ -405,6 +405,13 @@ receive_file (receive_cb cb, void *opaque)
"receive_file: got chunk: cancel = 0x%x, len = %d, buf = %p\n",
chunk.cancel, chunk.data.data_len, chunk.data.data_val);
+ if (chunk.cancel != 0 && chunk.cancel != 1) {
+ fprintf (stderr,
+ "receive_file: chunk.cancel != [0|1] ... "
+ "continuing even though we have probably lost synchronization with the library\n");
+ return -1;
+ }
+
if (chunk.cancel) {
if (verbose)
fprintf (stderr, "receive_file: received cancellation from library\n");