hello.c 3.76 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/***************************************************************************
 *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
 *                                                                         *
 *   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     *
 *   (at your option) 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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "log.h"

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
COMMAND_HANDLER(handle_foo_command)
{
	if (CMD_ARGC < 1 || CMD_ARGC > 2)
	{
		LOG_ERROR("%s: incorrect number of arguments", CMD_NAME);
		return ERROR_COMMAND_SYNTAX_ERROR;
	}

	uint32_t address;
	COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);

	const char *msg = "<unchanged>";
	if (CMD_ARGC == 2)
	{
		bool enable;
		COMMAND_PARSE_ENABLE(CMD_ARGV[1], enable);
		msg = enable ? "enable" : "disable";
	}

	LOG_INFO("%s: address=0x%8.8" PRIx32 " enabled=%s", CMD_NAME, address, msg);
	return ERROR_OK;
}

static bool foo_flag;

COMMAND_HANDLER(handle_flag_command)
{
	return CALL_COMMAND_HANDLER(handle_command_parse_bool,
			&foo_flag, "foo flag");
}

56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
static const struct command_registration foo_command_handlers[] = {
	{
		.name = "bar",
		.handler = &handle_foo_command,
		.mode = COMMAND_ANY,
		.help = "<address> [enable|disable] - an example command",
	},
	{
		.name = "baz",
		.handler = &handle_foo_command,
		.mode = COMMAND_ANY,
		.help = "<address> [enable|disable] - a sample command",
	},
	{
		.name = "flag",
		.handler = &handle_flag_command,
		.mode = COMMAND_ANY,
		.help = "[on|off] - set a flag",
	},
	COMMAND_REGISTRATION_DONE
};

78 79 80
int foo_register_commands(struct command_context *cmd_ctx)
{
	// register several commands under the foo command
Zachary T Welch's avatar
Zachary T Welch committed
81
	struct command *cmd = COMMAND_REGISTER(cmd_ctx, NULL, "foo",
82
			NULL, COMMAND_ANY, "example command handler skeleton");
83 84


85
	return register_commands(cmd_ctx, cmd, foo_command_handlers);
86 87
}

88 89
static COMMAND_HELPER(handle_hello_args, const char **sep, const char **name)
{
90
	if (CMD_ARGC > 1)
91 92 93 94
	{
		LOG_ERROR("%s: too many arguments", CMD_NAME);
		return ERROR_COMMAND_SYNTAX_ERROR;
	}
95
	if (1 == CMD_ARGC)
96 97
	{
		*sep = " ";
98
		*name = CMD_ARGV[0];
99 100 101 102 103 104 105 106 107 108 109
	}
	else
		*sep = *name = "";

	return ERROR_OK;
}
COMMAND_HANDLER(handle_hello_command)
{
	const char *sep, *name;
	int retval = CALL_COMMAND_HANDLER(handle_hello_args, &sep, &name);
	if (ERROR_OK == retval)
110
		command_print(CMD_CTX, "Greetings%s%s!", sep, name);
111 112 113
	return retval;
}

114 115 116 117 118 119 120 121 122 123 124
static const struct command_registration hello_command_handlers[] = {
	{
		.name = "hello",
		.handler = &handle_hello_command,
		.mode = COMMAND_ANY,
		.help = "prints a warm welcome",
		.usage = "[<name>]",
	},
	COMMAND_REGISTRATION_DONE
};

125
int hello_register_commands(struct command_context *cmd_ctx)
126
{
127 128
	foo_register_commands(cmd_ctx);

129
	return register_commands(cmd_ctx, NULL, hello_command_handlers);
130
}