babeld: add handling of "-z" cmdline arg
diff --git a/babeld/babel_main.c b/babeld/babel_main.c
index fd1d94f..2ae8b91 100644
--- a/babeld/babel_main.c
+++ b/babeld/babel_main.c
@@ -110,6 +110,7 @@
     { "daemon",      no_argument,       NULL, 'd'},
     { "config_file", required_argument, NULL, 'f'},
     { "pid_file",    required_argument, NULL, 'i'},
+    { "socket",      required_argument, NULL, 'z'},
     { "help",        no_argument,       NULL, 'h'},
     { "vty_addr",    required_argument, NULL, 'A'},
     { "vty_port",    required_argument, NULL, 'P'},
@@ -166,6 +167,7 @@
 -d, --daemon       Runs in daemon mode\n\
 -f, --config_file  Set configuration file name\n\
 -i, --pid_file     Set process identifier file name\n\
+-z, --socket       Set path of zebra socket\n\
 -A, --vty_addr     Set vty's bind address\n\
 -P, --vty_port     Set vty's port number\n\
 -u, --user         User to run as\n\
@@ -204,7 +206,7 @@
 
     /* get options */
     while(1) {
-        opt = getopt_long(argc, argv, "df:i:hA:P:u:g:v", longopts, 0);
+        opt = getopt_long(argc, argv, "df:i:z:hA:P:u:g:v", longopts, 0);
         if(opt < 0)
             break;
 
@@ -220,6 +222,9 @@
             case 'i':
                 pidfile = optarg;
                 break;
+            case 'z':
+                zclient_serv_path_set (optarg);
+                break;
             case 'A':
                 babel_vty_addr = optarg;
                 break;