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author | Juergen Beisert <j.beisert@pengutronix.de> | 2007-11-09 22:09:25 +0100 |
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committer | Juergen Beisert <j.beisert@pengutronix.de> | 2007-11-12 16:28:23 +0100 |
commit | 2966bba2160e3d9e828c1eadcd9a35a84878e664 (patch) | |
tree | c2ccd53a132be3f50c63cae10716c31012f20d03 /commands/setenv.c | |
parent | d59c600c656d08410ea862c582fbd77432c3ca47 (diff) | |
download | barebox-2966bba2160e3d9e828c1eadcd9a35a84878e664.tar.gz barebox-2966bba2160e3d9e828c1eadcd9a35a84878e664.tar.xz |
separating environment commands, part 1
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Diffstat (limited to 'commands/setenv.c')
-rw-r--r-- | commands/setenv.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/commands/setenv.c b/commands/setenv.c new file mode 100644 index 0000000000..2127da3a8f --- /dev/null +++ b/commands/setenv.c @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2007 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/** + * @file + * @brief setenv: Set an environment variables + */ + +#include <common.h> +#include <command.h> +#include <errno.h> +#include <environment.h> + +static int do_setenv ( cmd_tbl_t *cmdtp, int argc, char *argv[]) +{ + if (argc < 2) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + setenv(argv[1], argv[2]); + + return 0; +} + +U_BOOT_CMD_START(setenv) + .maxargs = CONFIG_MAXARGS, + .cmd = do_setenv, + .usage = "set environment variables", + U_BOOT_CMD_HELP( + "name value ...\n" + " - set environment variable 'name' to 'value ...'\n" + "setenv name\n" + " - delete environment variable 'name'\n") +U_BOOT_CMD_END + +/** + * @page setenv_command setenv: set an environment variable + * + * Usage: setenv \<name> [\<value>] + * + * Set environment variable \<name> to \<value>. Without a given value, the + * environment variable will be deleted. + * + * @note This command is only available if the simple command line parser is + * in use. Within the hush shell \c setenv is not required. + */ |