client: Add interactive mode support

When the client is started with the 'interactive' option, it drops
into interactive shell mode. The interactive commands are handled
using readline. All of the commands (except interactive) can be
used in this mode.

2 files changed, 177 insertions, 0 deletions

diff --git a/client/interactive.c b/client/interactive.c
new file mode 100644
index 00000000..b8d55a4f
--- /dev/null
+++ b/client/interactive.c
@@ -0,0 +1,141 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2012  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <readline/readline.h>
+#include <readline/history.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <glib.h>
+#include <gdbus.h>
+
+#include "client/services.h"
+#include "client/technology.h"
+#include "client/data_manager.h"
+#include "client/monitor.h"
+#include "client/interactive.h"
+
+static DBusConnection *interactive_conn;
+
+static char **parse_long(char *input, int *num_args)
+{
+	int i;
+	char **token = NULL;
+
+	for (i = 0; input != NULL; i++) {
+		token = realloc(token, (i + 1) * sizeof(char *));
+		if (token == NULL)
+			return NULL;
+		token[i] = strdup(input);
+		input = strtok(NULL, " ");
+	}
+	*num_args = i;
+
+	return token;
+}
+
+static gboolean rl_handler(char *input)
+{
+	char **long_args;
+	int num_args, i, error;
+	num_args = 0;
+
+	if (input == NULL) {
+		rl_newline(1, '\n');
+		exit(EXIT_FAILURE);
+	}
+
+	add_history(input);
+	input = strtok(input, " ");
+
+	if (input == NULL)
+		return FALSE;
+	long_args = parse_long(input, &num_args);
+
+	if (long_args == NULL) {
+		free(input);
+		exit(EXIT_FAILURE);
+	} else {
+		error = commands_no_options(interactive_conn,
+						long_args, num_args);
+		if (error == -1)
+			error = commands_options(interactive_conn, long_args,
+						num_args);
+		else
+			return error;
+	}
+	if ((strcmp(long_args[0], "quit") == 0)
+					|| (strcmp(long_args[0], "exit") == 0)
+					|| (strcmp(long_args[0], "q") == 0)) {
+		for (i = 0; i < num_args; i++)
+			free(long_args[i]);
+		free(long_args);
+		exit(EXIT_SUCCESS);
+	}
+	if (error == -1) {
+		fprintf(stderr, "%s is not a valid command, check help.\n",
+			long_args[0]);
+	}
+
+	for (i = 0; i < num_args; i++)
+		free(long_args[i]);
+	free(long_args);
+	optind = 0;
+
+	return TRUE;
+}
+
+static gboolean readmonitor(GIOChannel *channel, GIOCondition condition,
+							gpointer user_data){
+	if (condition & (G_IO_HUP | G_IO_ERR | G_IO_NVAL)) {
+		g_io_channel_unref(channel);
+		return FALSE;
+	}
+	rl_callback_read_char();
+	return TRUE;
+}
+
+void show_interactive(DBusConnection *connection, GMainLoop *mainloop)
+{
+	GIOChannel *gchan;
+	int events;
+	gchan = g_io_channel_unix_new(fileno(stdin));
+	events = G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL;
+	show_help();
+	interactive_conn = connection;
+
+	while (TRUE) {
+		g_io_add_watch(gchan, events, readmonitor, NULL);
+		rl_callback_handler_install("connmanctl> ", (void *)rl_handler);
+		g_main_loop_run(mainloop);
+
+		rl_callback_handler_remove();
+		g_io_channel_unref(gchan);
+	}
+}
diff --git a/client/interactive.h b/client/interactive.h
new file mode 100644
index 00000000..4a972c97
--- /dev/null
+++ b/client/interactive.h
@@ -0,0 +1,36 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2012  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __CLIENT_INTERACTIVE_H
+#define __CLIENT_INTERACTIVE_H
+
+#include <dbus/dbus.h>
+
+void show_interactive(DBusConnection *connection, GMainLoop *mainloop);
+int commands_no_options(DBusConnection *connection, char *argv[], int argc);
+int commands_options(DBusConnection *connection, char *argv[], int argc);
+void show_help(void);
+int monitor_switch(int argc, char *argv[], int c, DBusConnection *conn);
+int config_switch(int argc, char *argv[], int c, DBusConnection *conn);
+int service_switch(int argc, char *argv[], int c, DBusConnection *conn,
+						struct service_data *service);
+
+#endif