From 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:38:56 +0200 Subject: Adding upstream version 5.2.15. Signed-off-by: Daniel Baumann --- examples/loadables/printenv.c | 94 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 examples/loadables/printenv.c (limited to 'examples/loadables/printenv.c') diff --git a/examples/loadables/printenv.c b/examples/loadables/printenv.c new file mode 100644 index 0000000..8c7f720 --- /dev/null +++ b/examples/loadables/printenv.c @@ -0,0 +1,94 @@ +/* + * 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 . +*/ + +#include +#include + +#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) + { + CASE_HELPOPT; + 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); + + printf("\n"); + 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 +}; -- cgit v1.2.3