Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/src/global/timed_ipc.c b/src/global/timed_ipc.c
new file mode 100644
index 0000000..a883e83
--- /dev/null
+++ b/src/global/timed_ipc.c
@@ -0,0 +1,55 @@
+/*++
+/* NAME
+/*	timed_ipc 3
+/* SUMMARY
+/*	enforce IPC timeout on stream
+/* SYNOPSIS
+/*	#include <time_ipc.h>
+/*
+/*	void	timed_ipc_setup(stream)
+/*	VSTREAM	*stream;
+/* DESCRIPTION
+/*	timed_ipc() enforces on the specified stream the timeout as
+/*	specified via the \fIipc_timeout\fR configuration parameter:
+/*	a read or write operation fails if it does not succeed within
+/*	\fIipc_timeout\fR seconds. This deadline exists as a safety
+/*	measure for communication between mail subsystem programs,
+/*	and should never be exceeded.
+/* DIAGNOSTICS
+/*	Panic: sanity check failed. Fatal error: deadline exceeded.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <vstream.h>
+
+/* Global library. */
+
+#include "mail_params.h"
+#include "timed_ipc.h"
+
+/* timed_ipc_setup - enable ipc with timeout */
+
+void    timed_ipc_setup(VSTREAM *stream)
+{
+    if (var_ipc_timeout <= 0)
+	msg_panic("timed_ipc_setup: bad ipc_timeout %d", var_ipc_timeout);
+
+    vstream_control(stream,
+		    CA_VSTREAM_CTL_TIMEOUT(var_ipc_timeout),
+		    CA_VSTREAM_CTL_END);
+}