[Xen-changelog] [xen-unstable] xenstored: Fix socket-based connection teardown. Reading zero bytes

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1185353474 -3600
# Node ID 3ec3e2840a29bb6d4c64b8094248381712370f17
# Parent  68260372b6da5dfb0e32dfe26cc4a8ddbf0b3df0
xenstored: Fix socket-based connection teardown. Reading zero bytes
*should* in fact cause the connection to be destroyed. Fix this with a
little extra code in the readfd() handler.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 tools/xenstore/xenstored_core.c |    6 ++++++
 1 files changed, 6 insertions(+)

diff -r 68260372b6da -r 3ec3e2840a29 tools/xenstore/xenstored_core.c
--- a/tools/xenstore/xenstored_core.c   Tue Jul 24 18:28:48 2007 +0100
+++ b/tools/xenstore/xenstored_core.c   Wed Jul 25 09:51:14 2007 +0100
@@ -1366,6 +1366,12 @@ static int readfd(struct connection *con
                }
                if (errno != EINTR)
                        break;
+       }
+
+       /* Reading zero length means we're done with this connection. */
+       if ((rc == 0) && (len != 0)) {
+               errno = EBADF;
+               rc = -1;
        }
 
        return rc;

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