--- nut-2.0.5/drivers/upsdrvctl.c.orig	2006-11-08 05:08:45 +0300

+++ nut-2.0.5/drivers/upsdrvctl.c	2007-03-25 05:39:26 +0400

@@ -276,6 +276,52 @@ static void start_driver(const ups_t *up

 	forkexec(dfn, argv, ups);

 }

+static void list_driver(const ups_t *ups)

+{

+	char	dfn[SMALLBUF];

+	int	ret;

+	struct	stat	fs;

+

+	snprintf(dfn, sizeof(dfn), "%s/%s", driverpath, ups->driver);

+	ret = stat(dfn, &fs);

+

+	if (ret < 0)

+		upslogx(LOG_ERR, "stat: %s: %m", dfn);

+	else

+		puts (dfn);

+}

+

+/* list user-selected driver */

+static void list_one_driver(const char *upsname)

+{

+	ups_t	*tmp = upstable;

+

+	if (!tmp)

+		fatalx("Error: no UPS definitions found in ups.conf!\n");

+

+	while (tmp) {

+		if (!strcmp(tmp->upsname, upsname)) {

+			list_driver(tmp);

+			return;

+		}

+

+		tmp = tmp->next;

+	}

+

+	fatalx("UPS %s not found in ups.conf", upsname);

+}

+

+/* walk ups table and list drivers */

+static void list_all_drivers(void)

+{

+	ups_t	*tmp = upstable;

+

+	while (tmp) {

+		list_driver(tmp);

+		tmp = tmp->next;

+	}

+}

+

 static void help(const char *progname)

 {

 	printf("Starts and stops UPS drivers via ups.conf.\n\n");

@@ -286,6 +332,8 @@ static void help(const char *progname)

 	printf("  -t			testing mode - prints actions without doing them\n");

 	printf("  -u <user>		drivers started will switch from root to <user>\n");

 	printf("  -D            	raise debugging level\n");

+	printf("  list			list all UPS drivers in ups.conf\n");

+	printf("  list <ups>		only list driver for UPS <ups>\n");

 	printf("  start			start all UPS drivers in ups.conf\n");

 	printf("  start	<ups>		only start driver for UPS <ups>\n");

 	printf("  stop			stop all UPS drivers in ups.conf\n");

@@ -457,6 +505,9 @@ int main(int argc, char **argv)

 	if (!strcmp(argv[0], "shutdown"))

 		command = &shutdown_driver;

+	if (!strcmp(argv[0], "list")) 

+		command = &list_driver;

+

 	if (!command)

 		fatalx("Error: unrecognized command [%s]", argv[0]);

@@ -466,6 +517,15 @@ int main(int argc, char **argv)

 	read_upsconf();

+	if (command == &list_driver) {

+		if (argc == 1)

+			list_all_drivers();

+		else

+			list_one_driver(argv[1]);

+

+		exit(EXIT_SUCCESS);

+	}

+

 	if (argc == 1)

 		send_all_drivers(command);

 	else