Imported from /home/lorry/working-area/delta_tcp-wrappers/tcp_wrappers_7.6.tar.gz.HEADtcp_wrappers_7.6master

1 files changed, 42 insertions, 0 deletions

diff --git a/clean_exit.c b/clean_exit.c
new file mode 100644
index 0000000..cb9d4f5
--- /dev/null
+++ b/clean_exit.c
@@ -0,0 +1,42 @@
+ /*
+  * clean_exit() cleans up and terminates the program. It should be called
+  * instead of exit() when for some reason the real network daemon will not or
+  * cannot be run. Reason: in the case of a datagram-oriented service we must
+  * discard the not-yet received data from the client. Otherwise, inetd will
+  * see the same datagram again and again, and go into a loop.
+  * 
+  * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
+  */
+
+#ifndef lint
+static char sccsid[] = "@(#) clean_exit.c 1.4 94/12/28 17:42:19";
+#endif
+
+#include <stdio.h>
+
+extern void exit();
+
+#include "tcpd.h"
+
+/* clean_exit - clean up and exit */
+
+void    clean_exit(request)
+struct request_info *request;
+{
+
+    /*
+     * In case of unconnected protocols we must eat up the not-yet received
+     * data or inetd will loop.
+     */
+
+    if (request->sink)
+	request->sink(request->fd);
+
+    /*
+     * Be kind to the inetd. We already reported the problem via the syslogd,
+     * and there is no need for additional garbage in the logfile.
+     */
+
+    sleep(5);
+    exit(0);
+}