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 Bash.
   7    Bash 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    Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include <config.h>
  22
  23 #include "bashtypes.h"
  24 #include "shell.h"
  25 #include "builtins.h"
  26 #include "common.h"
  27
  28 true_builtin (list)
  29      WORD_LIST *list;
  30 {
  31   return EXECUTION_SUCCESS;
  32 }
  33
  34 false_builtin (list)
  35      WORD_LIST *list;
  36 {
  37   return EXECUTION_FAILURE;
  38 }
  39
  40 static char *true_doc[] = {
  41         "Exit successfully.",
  42         "",
  43         "Return a successful result.",
  44         (char *)NULL
  45 };
  46
  47 static char *false_doc[] = {
  48         "Exit unsuccessfully.",
  49         "",
  50         "Return an unsuccessful result.",
  51         (char *)NULL
  52 };
  53
  54 struct builtin true_struct = {
  55         "true",
  56         true_builtin,
  57         BUILTIN_ENABLED,
  58         true_doc,
  59         "true",
  60         0
  61 };
  62
  63 struct builtin false_struct = {
  64         "false",
  65         false_builtin,
  66         BUILTIN_ENABLED,
  67         false_doc,
  68         "false",
  69         0
  70 };