[legal] Add a selection of FILE_LICENCE declarations

Add FILE_LICENCE declarations to almost all files that make up the
various standard builds of gPXE.

src/hci/commands/autoboot_cmd.c

@@ -2,6 +2,8 @@
 #include <gpxe/command.h>
 #include <usr/autoboot.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static int autoboot_exec ( int argc, char **argv ) {
 
 	if ( argc != 1 ) {

src/hci/commands/config_cmd.c

@@ -4,6 +4,8 @@
 #include <gpxe/settings.h>
 #include <gpxe/settings_ui.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static int config_exec ( int argc, char **argv ) {
 	char *settings_name;
 	struct settings *settings;

src/hci/commands/dhcp_cmd.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>

src/hci/commands/ifmgmt_cmd.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <getopt.h>
 #include <gpxe/netdevice.h>

src/hci/commands/image_cmd.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>

src/hci/commands/login_cmd.c

@@ -3,6 +3,8 @@
 #include <gpxe/command.h>
 #include <gpxe/login_ui.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static int login_exec ( int argc, char **argv ) {
 	int rc;
 

src/hci/commands/nvo_cmd.c

@@ -7,6 +7,8 @@
 #include <gpxe/settings.h>
 #include <gpxe/command.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static int show_exec ( int argc, char **argv ) {
 	char buf[256];
 	int rc;

src/hci/commands/route_cmd.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <getopt.h>
 #include <gpxe/command.h>

src/hci/commands/sanboot_cmd.c

@@ -4,6 +4,8 @@
 #include <gpxe/command.h>
 #include <usr/autoboot.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * "sanboot" command syntax message
  *

src/hci/editstring.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <assert.h>
 #include <string.h>
 #include <gpxe/keys.h>

src/hci/mucurses/ansi_screen.c

@@ -2,6 +2,8 @@
 #include <curses.h>
 #include <console.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static void ansiscr_reset(struct _curses_screen *scr) __nonnull;
 static void ansiscr_movetoyx(struct _curses_screen *scr,
                                unsigned int y, unsigned int x) __nonnull;

src/hci/mucurses/clear.c

@@ -8,6 +8,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * Clear a window to the bottom from current cursor position
  *

src/hci/mucurses/colour.c

@@ -1,5 +1,7 @@
 #include <curses.h>
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 struct colour_pair {
 	short fcol;
 	short bcol;

src/hci/mucurses/cursor.h

@@ -7,6 +7,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 struct cursor_pos {
 	unsigned int y, x;
 };

src/hci/mucurses/mucurses.c

@@ -8,6 +8,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 static void _wupdcurs ( WINDOW *win ) __nonnull;
 void _wputch ( WINDOW *win, chtype ch, int wrap ) __nonnull;
 void _wputc ( WINDOW *win, char c, int wrap ) __nonnull;

src/hci/mucurses/mucurses.h

@@ -7,6 +7,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #define WRAP 0
 #define NOWRAP 1
 

src/hci/mucurses/print.c

@@ -10,6 +10,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * Add a single-byte character and rendition to a window and advance
  * the cursor

src/hci/mucurses/widgets/editbox.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <string.h>
 #include <assert.h>
 #include <gpxe/editbox.h>

src/hci/mucurses/winattrs.c

@@ -6,6 +6,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * Get the background rendition attributes for a window
  *

src/hci/mucurses/wininit.c

@@ -7,6 +7,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * Initialise console environment
  *

src/hci/readline.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>

src/hci/shell.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>

src/hci/shell_banner.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <console.h>
 #include <unistd.h>

src/hci/strerror.c

@@ -18,6 +18,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * Find error description
  *

src/hci/tui/login_ui.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /** @file
  *
  * Login UI

src/hci/tui/settings_ui.c

@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <stdarg.h>
 #include <unistd.h>