1 files changed, 138 insertions, 0 deletions

diff --git a/qemu/roms/ipxe/src/hci/shell.c b/qemu/roms/ipxe/src/hci/shell.c
new file mode 100644
index 000000000..c1a543849
--- /dev/null
+++ b/qemu/roms/ipxe/src/hci/shell.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * 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 Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <getopt.h>
+#include <readline/readline.h>
+#include <ipxe/command.h>
+#include <ipxe/parseopt.h>
+#include <ipxe/shell.h>
+
+/** @file
+ *
+ * Minimal command shell
+ *
+ */
+
+/** The shell prompt string */
+static const char shell_prompt[] = "iPXE> ";
+
+/**
+ * "help" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
+static int help_exec ( int argc __unused, char **argv __unused ) {
+	struct command *command;
+	unsigned int hpos = 0;
+
+	printf ( "\nAvailable commands:\n\n" );
+	for_each_table_entry ( command, COMMANDS ) {
+		hpos += printf ( "  %s", command->name );
+		if ( hpos > ( 16 * 4 ) ) {
+			printf ( "\n" );
+			hpos = 0;
+		} else {
+			while ( hpos % 16 ) {
+				printf ( " " );
+				hpos++;
+			}
+		}
+	}
+	printf ( "\n\nType \"<command> --help\" for further information\n\n" );
+	return 0;
+}
+
+/** "help" command */
+struct command help_command __command = {
+	.name = "help",
+	.exec = help_exec,
+};
+
+/**
+ * Start command shell
+ *
+ */
+int shell ( void ) {
+	struct readline_history history;
+	char *line;
+	int rc = 0;
+
+	/* Initialise shell history */
+	memset ( &history, 0, sizeof ( history ) );
+
+	/* Read and execute commands */
+	do {
+		readline_history ( shell_prompt, NULL, &history, &line );
+		if ( line ) {
+			rc = system ( line );
+			free ( line );
+		}
+	} while ( ! shell_stopped ( SHELL_STOP_COMMAND_SEQUENCE ) );
+
+	/* Discard shell history */
+	history_free ( &history );
+
+	return rc;
+}
+
+/** "shell" options */
+struct shell_options {};
+
+/** "shell" option list */
+static struct option_descriptor shell_opts[] = {};
+
+/** "shell" command descriptor */
+static struct command_descriptor shell_cmd =
+	COMMAND_DESC ( struct shell_options, shell_opts, 0, 0, NULL );
+
+/**
+ * "shell" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
+static int shell_exec ( int argc, char **argv ) {
+	struct shell_options opts;
+	int rc;
+
+	/* Parse options */
+	if ( ( rc = parse_options ( argc, argv, &shell_cmd, &opts ) ) != 0 )
+		return rc;
+
+	/* Start shell */
+	if ( ( rc = shell() ) != 0 )
+		return rc;
+
+	return 0;
+}
+
+/** "shell" command */
+struct command shell_command __command = {
+	.name = "shell",
+	.exec = shell_exec,
+};