/* * global.c - global shell variables * * Copyright (c) 2012 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program 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. * */ #include <common.h> #include <malloc.h> #include <command.h> #include <globalvar.h> #include <environment.h> static int do_global(int argc, char *argv[]) { int ret; char *value; if (argc != 2) return COMMAND_ERROR_USAGE; value = strchr(argv[1], '='); if (value) { *value = 0; value++; } ret = globalvar_add_simple(argv[1]); if (value) { char *name = asprintf("global.%s", argv[1]); ret = setenv(name, value); free(name); } return ret ? 1 : 0; } BAREBOX_CMD_HELP_START(global) BAREBOX_CMD_HELP_USAGE("global <var>[=<value]\n") BAREBOX_CMD_HELP_SHORT("add a new global variable named <var>, optionally set to <value>\n") BAREBOX_CMD_HELP_END BAREBOX_CMD_START(global) .cmd = do_global, .usage = "create global variables", BAREBOX_CMD_HELP(cmd_global_help) BAREBOX_CMD_END