--- ipmitool-1.8.12/src/ipmishell.c.orig	2006-07-15 00:36:50.000000000 +0200
+++ ipmitool-1.8.12/src/ipmishell.c	2013-03-08 14:03:35.000000000 +0100
@@ -270,6 +270,20 @@ int ipmi_set_main(struct ipmi_intf * int
 		return -1;
 	}
 
+	/* Some commands below require a session struct.
+	   Not all interfaces allocate one. Maybe get a dummy
+	   structure to avoid a crash on bogus usage.
+	   This is a hack. This code structure needs to be cleaned up!
+	 */
+	if (intf->session == 0) {
+		intf->session = malloc(sizeof(struct ipmi_session));
+		if (intf->session) {
+			memset(intf->session, 0, sizeof(struct ipmi_session));
+		} else {
+			printf("Warning: failed to allocate dummy session\n");
+		}
+	}
+
 	if (strncmp(argv[0], "host", 4) == 0 ||
 	    strncmp(argv[0], "hostname", 8) == 0) {
 		ipmi_intf_session_set_hostname(intf, argv[1]);