67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <environment.h>
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static int do_printenv(int argc, char *argv[])
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{
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struct variable_d *v;
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struct env_context *c;
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if (argc == 2) {
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const char *val = getenv(argv[1]);
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if (val) {
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printf("%s=%s\n", argv[1], val);
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return 0;
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}
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printf("## Error: \"%s\" not defined\n", argv[1]);
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return 1;
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}
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c = get_current_context();
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printf("locals:\n");
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list_for_each_entry(v, &c->local, list)
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printf("%s=%s\n", var_name(v), var_val(v));
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printf("globals:\n");
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c = get_current_context();
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while (c) {
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list_for_each_entry(v, &c->global, list)
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printf("%s=%s\n", var_name(v), var_val(v));
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c = c->parent;
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}
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return 0;
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}
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BAREBOX_CMD_HELP_START(printenv)
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BAREBOX_CMD_HELP_TEXT("If an argument is given, printenv prints the content of an environment")
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BAREBOX_CMD_HELP_TEXT("variable to the terminal. If no argument is specified, all variables are")
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BAREBOX_CMD_HELP_TEXT("printed.")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(printenv)
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.cmd = do_printenv,
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BAREBOX_CMD_DESC("print value of environment variables")
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BAREBOX_CMD_OPTS("[VARIABLE]")
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BAREBOX_CMD_GROUP(CMD_GRP_ENV)
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BAREBOX_CMD_HELP(cmd_printenv_help)
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BAREBOX_CMD_END
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