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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/hci/shell.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/hci/shell.c')
-rw-r--r--qemu/roms/ipxe/src/hci/shell.c138
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,
+};