examples/loadables/truefalse.c

   1 /* true and false builtins */
   2
   3 /*
   4    Copyright (C) 1999-2009 Free Software Foundation, Inc.
   5
   6    This file is part of GNU Bush.
   7    Bush is free software: you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation, either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    Bush is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bush.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include <config.h>
  22
  23 #include "bushtypes.h"
  24 #include "shell.h"
  25 #include "builtins.h"
  26 #include "common.h"
  27
  28 int
  29 true_builtin (list)
  30      WORD_LIST *list;
  31 {
  32   return EXECUTION_SUCCESS;
  33 }
  34
  35 int
  36 false_builtin (list)
  37      WORD_LIST *list;
  38 {
  39   return EXECUTION_FAILURE;
  40 }
  41
  42 static char *true_doc[] = {
  43         "Exit successfully.",
  44         "",
  45         "Return a successful result.",
  46         (char *)NULL
  47 };
  48
  49 static char *false_doc[] = {
  50         "Exit unsuccessfully.",
  51         "",
  52         "Return an unsuccessful result.",
  53         (char *)NULL
  54 };
  55
  56 struct builtin true_struct = {
  57         "true",
  58         true_builtin,
  59         BUILTIN_ENABLED,
  60         true_doc,
  61         "true",
  62         0
  63 };
  64
  65 struct builtin false_struct = {
  66         "false",
  67         false_builtin,
  68         BUILTIN_ENABLED,
  69         false_doc,
  70         "false",
  71         0
  72 };