Fixing obsolete HGFS protocol support

Payload size must be at least siZeof HgfsReply.
HgfsServer returns payload size 0 on error for obsolete HGFS versions.
Fixing to return at least header size.

Signed-off-by: Marcelo Vanzin <mvanzin@vmware.com>

diff --git a/open-vm-tools/lib/hgfsServer/hgfsServer.c b/open-vm-tools/lib/hgfsServer/hgfsServer.c
index 4b52c74ed8ce9671d2a529427393e9ba67552382..4b955b384f831944436d9536112c4b8eed7447c8 100644 (file)
--- a/open-vm-tools/lib/hgfsServer/hgfsServer.c
+++ b/open-vm-tools/lib/hgfsServer/hgfsServer.c
@@ -2720,7 +2720,7 @@ HgfsServerCompleteRequest(HgfsInternalStatus status,   // IN: Status of the requ
        * Starting from HGFS V3 header is not included in the payload size.
        */
       if (input->op < HGFS_OP_OPEN_V3) {
-         replySize = replyPayloadSize;
+         replySize = MAX(replyPayloadSize, sizeof *reply);
       } else {
          replySize = sizeof *reply + replyPayloadSize;
       }