src/hello.c

   1 /***************************************************************************
   2  *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23 #include "log.h"
  24
  25 static COMMAND_HELPER(handle_hello_args, const char **sep, const char **name)
  26 {
  27         if (CMD_ARGC > 1)
  28         {
  29                 LOG_ERROR("%s: too many arguments", CMD_NAME);
  30                 return ERROR_COMMAND_SYNTAX_ERROR;
  31         }
  32         if (1 == CMD_ARGC)
  33         {
  34                 *sep = " ";
  35                 *name = CMD_ARGV[0];
  36         }
  37         else
  38                 *sep = *name = "";
  39
  40         return ERROR_OK;
  41 }
  42 COMMAND_HANDLER(handle_hello_command)
  43 {
  44         const char *sep, *name;
  45         int retval = CALL_COMMAND_HANDLER(handle_hello_args, &sep, &name);
  46         if (ERROR_OK == retval)
  47                 command_print(CMD_CTX, "Greetings%s%s!", sep, name);
  48         return retval;
  49 }
  50
  51 int hello_register_commands(struct command_context *cmd_ctx)
  52 {
  53         struct command *cmd = register_command(cmd_ctx, NULL, "hello",
  54                         &handle_hello_command, COMMAND_ANY,
  55                         "option");
  56         return cmd ? ERROR_OK : -ENOMEM;
  57 }