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-rw-r--r--src/global/timed_ipc.c55
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diff --git a/src/global/timed_ipc.c b/src/global/timed_ipc.c
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+/*++
+/* 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);
+}