2 * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL
);
31 #include <readline/readline.h>
32 #include <ipxe/command.h>
33 #include <ipxe/parseopt.h>
34 #include <ipxe/shell.h>
35 #include <config/branding.h>
39 * Minimal command shell
43 /** The shell prompt string */
44 static const char shell_prompt
[] = PRODUCT_SHORT_NAME
"> ";
49 * @v argc Argument count
50 * @v argv Argument list
51 * @ret rc Return status code
53 static int help_exec ( int argc __unused
, char **argv __unused
) {
54 struct command
*command
;
55 unsigned int hpos
= 0;
57 printf ( "\nAvailable commands:\n\n" );
58 for_each_table_entry ( command
, COMMANDS
) {
59 hpos
+= printf ( " %s", command
->name
);
60 if ( hpos
> ( 16 * 4 ) ) {
70 printf ( "\n\nType \"<command> --help\" for further information\n\n" );
75 struct command help_command __command
= {
85 struct readline_history history
;
89 /* Initialise shell history */
90 memset ( &history
, 0, sizeof ( history
) );
92 /* Read and execute commands */
94 readline_history ( shell_prompt
, NULL
, &history
, &line
);
99 } while ( ! shell_stopped ( SHELL_STOP_COMMAND_SEQUENCE
) );
101 /* Discard shell history */
102 history_free ( &history
);
107 /** "shell" options */
108 struct shell_options
{};
110 /** "shell" option list */
111 static struct option_descriptor shell_opts
[] = {};
113 /** "shell" command descriptor */
114 static struct command_descriptor shell_cmd
=
115 COMMAND_DESC ( struct shell_options
, shell_opts
, 0, 0, NULL
);
120 * @v argc Argument count
121 * @v argv Argument list
122 * @ret rc Return status code
124 static int shell_exec ( int argc
, char **argv
) {
125 struct shell_options opts
;
129 if ( ( rc
= parse_options ( argc
, argv
, &shell_cmd
, &opts
) ) != 0 )
133 if ( ( rc
= shell() ) != 0 )
139 /** "shell" command */
140 struct command shell_command __command
= {