lxc-start: Add -F (foreground) option

doc/lxc-start.sgml.in

@@ -54,6 +54,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
       <arg choice="opt">-c <replaceable>console_device</replaceable></arg>
       <arg choice="opt">-L <replaceable>console_logfile</replaceable></arg>
       <arg choice="opt">-d</arg>
+      <arg choice="opt">-F</arg>
       <arg choice="opt">-p <replaceable>pid_file</replaceable></arg>
       <arg choice="opt">-s KEY=VAL</arg>
       <arg choice="opt">-C</arg>
@@ -107,6 +108,19 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
       <varlistentry>
 	<term>
+	  <option>-F, --foreground</option>
+	</term>
+	<listitem>
+	  <para>
+	    Run the container in the foreground. In this mode, the container
+	    console will be attached to the current tty and signals will be routed
+	    directly to the container. (This is the default mode)
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>
 	  <option>-p, --pidfile <replaceable>pid_file</replaceable></option>
 	</term>
 	<listitem>

src/lxc/lxc_start.c

@@ -147,6 +147,7 @@ static int my_parser(struct lxc_arguments* args, int c, char* arg)
 	case 'c': args->console = arg; break;
 	case 'L': args->console_log = arg; break;
 	case 'd': args->daemonize = 1; break;
+	case 'F': args->daemonize = 0; break;
 	case 'f': args->rcfile = arg; break;
 	case 'C': args->close_all_fds = 1; break;
 	case 's': return lxc_config_define_add(&defines, arg);
@@ -160,6 +161,7 @@ static int my_parser(struct lxc_arguments* args, int c, char* arg)
 
 static const struct option my_longopts[] = {
 	{"daemon", no_argument, 0, 'd'},
+	{"foreground", no_argument, 0, 'F'},
 	{"rcfile", required_argument, 0, 'f'},
 	{"define", required_argument, 0, 's'},
 	{"console", required_argument, 0, 'c'},
@@ -181,7 +183,8 @@ lxc-start start COMMAND in specified container NAME\n\
 \n\
 Options :\n\
   -n, --name=NAME        NAME for name of the container\n\
-  -d, --daemon           daemonize the container\n\
+  -d, --daemon           Daemonize the container\n\
+  -F, --foreground       Start with the current tty attached to /dev/console (default)\n\
   -p, --pidfile=FILE     Create a file with the process id\n\
   -f, --rcfile=FILE      Load configuration file FILE\n\
   -c, --console=FILE     Use specified FILE for the container console\n\