Add command line arguments to set the account_key/session_names

-k account_key -n session_name -r session_name_ro

server.c

@@ -203,6 +203,7 @@ server_start(struct event_base *base, int lockfd, char *lockfile)
 
 #ifdef TMATE
 	tmate_set_editor_mode();
+	tmate_init_boot_options();
 #endif
 	start_cfg();
 

tmux.c

@@ -201,6 +201,30 @@ find_home(void)
 	return (home);
 }
 
+#ifdef TMATE
+static char *account_key;
+static char *session_name;
+static char *session_name_ro;
+
+void tmate_init_boot_options(void)
+{
+	if (account_key)
+		tmate_exec_cmd_args(4, (const char *[]){"set-option", "-g", "tmate-account-key", account_key});
+	if (session_name)
+		tmate_exec_cmd_args(4, (const char *[]){"set-option", "-g", "tmate-session-name", session_name});
+	if (session_name_ro)
+		tmate_exec_cmd_args(4, (const char *[]){"set-option", "-g", "tmate-session-name-ro", session_name_ro});
+
+	free(account_key);
+	free(session_name);
+	free(session_name_ro);
+
+	account_key = NULL;
+	session_name = NULL;
+	session_name_ro = NULL;
+}
+#endif
+
 int
 main(int argc, char **argv)
 {
@@ -231,7 +255,7 @@ main(int argc, char **argv)
 #endif
 
 	label = path = NULL;
-	while ((opt = getopt(argc, argv, "2c:CdFf:lL:qS:uUVv")) != -1) {
+	while ((opt = getopt(argc, argv, "2c:CdFf:lL:qS:uUVvk:n:r:")) != -1) {
 		switch (opt) {
 		case '2':
 			flags |= CLIENT_256COLOURS;
@@ -276,6 +300,15 @@ main(int argc, char **argv)
 			log_add_level();
 			unsetenv("TMUX");
 			break;
+		case 'k':
+			account_key = xstrdup(optarg);
+			break;
+		case 'n':
+			session_name = xstrdup(optarg);
+			break;
+		case 'r':
+			session_name_ro = xstrdup(optarg);
+			break;
 		default:
 			usage();
 		}

tmux.h

@@ -1551,6 +1551,7 @@ extern struct timeval	 start_time;
 extern const char	*socket_path;
 #ifdef TMATE
 extern int tmate_foreground;
+void tmate_init_boot_options(void);
 #endif
 const char	*getshell(void);
 int		 checkshell(const char *);