rstp: fix some commands not working

when swith ports are controlled by the rstp, some commands doesn't
work for using wrong ports name.
load the correct switch ports name before get the information.

Change-Id: I81115249d570f4b4e6e01be6388970796fc675c9
Signed-off-by: Ken Zhu <guigenz@codeaurora.org>

rstp/patches/101-fix-not-display-switch-port.patch

+diff -Nur a/ctl_main.c rstp-2011-10-11/ctl_main.c
+--- a/ctl_main.c	2019-07-01 16:02:44.229907281 -0700
++++ rstp-2011-10-11/ctl_main.c	2019-07-01 16:07:32.657909651 -0700
+@@ -20,6 +20,7 @@
+ 
+ #include "ctl_socket_client.h"
+ #include "ctl_functions.h"
++#include "switch_api.h"
+ 
+ #ifndef False
+ # define False 0
+@@ -81,9 +82,9 @@
+ {
+ 	static char ifname[IFNAMSIZ];
+ 	if (CTL_if_indextoname(port, ifname))
+-		printf("%s", ifname);
+-	else
+ 		printf("Ifindex %02d", port);
++	else
++		printf("%s", ifname);
+ 	if (cr)
+ 		printf("\n");
+ }
+@@ -453,14 +454,47 @@
+ 
+ 	for (i = 0; i < count; i++) {
+ 		const char *name;
+-		if (argc > 2)
++		int err;
++		if (argc > 2) {
+ 			name = argv[i + 2];
+-		else
+-			name = namelist[i]->d_name;
++			err = do_showport(br_index, name, &uid_state);
++			if (err)
++				r = err;
++
++		} else {
++			char cmd[128];
++			char sw_port_name[24];
++			char result[120];
++			char switch_type[SW_NAME_SIZE], control_channel[SW_NAME_SIZE], data_channel[SW_NAME_SIZE], port_name[SW_NAME_SIZE];
++			char *index = NULL;
++			int port_num, match;
++			FILE *fp = NULL;
+ 
+-		int err = do_showport(br_index, name, &uid_state);
+-		if (err)
+-			r = err;
++			name = namelist[i]->d_name;
++			snprintf(cmd, sizeof(cmd), "%s get_switch_ports|grep \"%s\"", RSTP_CMD_PATH, name);
++			fp = popen(cmd, "r");
++			if (!fp)
++				return 0;
++			while (fgets(result, 120-1, fp)) {
++				index = result;
++				while((*index) && (*index != '='))++index;
++				if(!(*index))
++					continue;
++				++index;
++				match = sscanf(index, "%64s %64s %64s %d %64s", switch_type, control_channel, data_channel, &port_num, port_name);
++				if(match == 5) {
++					snprintf(sw_port_name, 23, "%s.%s", control_channel, port_name);
++					err = do_showport(br_index, sw_port_name, &uid_state);
++					if (err)
++						r = err;
++				}
++			}
++			if (!index) {
++				err = do_showport(br_index, name, &uid_state);
++				if (err)
++					r = err;
++			}
++		}
+ 	}
+ 
+ 	if (argc <= 2) {