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version 3.0

    1: /*************************************************************************
    2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
    3: *  by Michael Pounov <misho@openbsd-bg.org>
    4: *
    5: * $Author: misho $
    6: * $Id: cli.c,v 1.5 2013/05/30 09:16:42 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: 
   48: 
   49: /*
   50:  * cli_Cmd_Exit() - Builtin helper function for Exit from Cli
   51:  *
   52:  * @buffer = CLI buffer
   53:  * @idx = Selected command ID
   54:  * @args = Parsed arguments array
   55:  * return: RETCODE_EOF exit from Cli!
   56: */
   57: int cli_Cmd_Exit(void * __restrict buffer, int idx, char ** __restrict args)
   58: {
   59: 	cli_Printf(buffer, "\n");
   60: 	return RETCODE_EOF;
   61: }
   62: 
   63: /*
   64:  * cli_Cmd_Help() - Builtin helper function for Help screen
   65:  *
   66:  * @buffer = CLI buffer
   67:  * @idx = Selected command ID
   68:  * @args = Parsed arguments array
   69:  * return: RETCODE_ERR in error or RETCODE_OK
   70: */
   71: int cli_Cmd_Help(void * __restrict buffer, int idx, char ** __restrict args)
   72: {
   73: 	linebuffer_t *buf = buffer;
   74: 	struct tagCommand *cmd;
   75: 
   76: 	if (!buffer) {
   77: 		cli_SetErr(EINVAL, "Invalid input parameters ...");
   78: 		return RETCODE_ERR;
   79: 	}
   80: 
   81: 	cli_Printf(buf, "\n");
   82: 	if (!args) {
   83: 		SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next)
   84: 			cli_Printf(buf, "%s\t\t%s\n", cmd->cmd_name, cmd->cmd_help);
   85: 	} else {
   86: 		if (!args[1])
   87: 			cli_Printf(buf, "Help screen::\n");
   88: 		else
   89: 			if (!strncmp(args[1], "---", 3))
   90: 				return RETCODE_OK;
   91: 
   92: 		SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) {
   93: 			if (args[1] && (cmd->cmd_level != buf->line_level || strcmp(args[1], cmd->cmd_name)))
   94: 				continue;
   95: 
   96: 			cli_Printf(buf, "%s%s\t\t%s\n", args[1] ? "Syntax::\n\t" : "", cmd->cmd_name, 
   97: 					args[1] ? cmd->cmd_info: cmd->cmd_help);
   98: 		}
   99: 	}
  100: 	cli_Printf(buffer, "\r");
  101: 
  102: 	return RETCODE_OK;
  103: }
  104: 
  105: /*
  106:  * cli_Cmd_Unsupported() - Builtin helper function for unsupported commands
  107:  *
  108:  * @buffer = CLI buffer
  109:  * @idx = Selected command ID
  110:  * @args = Parsed arguments array
  111:  * return: RETCODE_OK ok
  112: */
  113: int cli_Cmd_Unsupported(void * __restrict buffer, int idx, char ** __restrict args)
  114: {
  115: 	cli_Printf(buffer, "Command %s not supported in this version ...\n", args[0]);
  116: 	return RETCODE_OK;
  117: }