| /* |
| * printenv -- minimal builtin clone of BSD printenv(1). |
| * |
| * usage: printenv [varname] |
| * |
| */ |
| |
| /* |
| Copyright (C) 1999-2009 Free Software Foundation, Inc. |
| |
| This file is part of GNU Bash. |
| Bash 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 3 of the License, or |
| (at your option) any later version. |
| |
| Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <config.h> |
| #include <stdio.h> |
| |
| #include "builtins.h" |
| #include "shell.h" |
| #include "bashgetopt.h" |
| #include "common.h" |
| |
| extern char **export_env; |
| |
| int |
| printenv_builtin (list) |
| WORD_LIST *list; |
| { |
| register char **envp; |
| int opt; |
| SHELL_VAR *var; |
| |
| reset_internal_getopt (); |
| while ((opt = internal_getopt (list, "")) != -1) |
| { |
| switch (opt) |
| { |
| default: |
| builtin_usage (); |
| return (EX_USAGE); |
| } |
| } |
| list = loptend; |
| |
| /* printenv */ |
| if (list == 0) |
| { |
| maybe_make_export_env (); /* this allows minimal code */ |
| for (envp = export_env; *envp; envp++) |
| printf ("%s\n", *envp); |
| return (EXECUTION_SUCCESS); |
| } |
| |
| /* printenv varname */ |
| var = find_variable (list->word->word); |
| if (var == 0 || (exported_p (var) == 0)) |
| return (EXECUTION_FAILURE); |
| |
| if (function_p (var)) |
| print_var_function (var); |
| else |
| print_var_value (var, 0); |
| |
| return (EXECUTION_SUCCESS); |
| } |
| |
| char *printenv_doc[] = { |
| "Display environment.", |
| "", |
| "Print names and values of environment variables", |
| (char *)NULL |
| }; |
| |
| struct builtin printenv_struct = { |
| "printenv", |
| printenv_builtin, |
| BUILTIN_ENABLED, |
| printenv_doc, |
| "printenv [varname]", |
| 0 |
| }; |