cmd_nvedit.c

static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	cmd_tbl_t *cp;

	if (argc < 2)
		return CMD_RET_USAGE;

	/* drop initial "env" arg */
	argc--;
	argv++;

	cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub));

	if (cp)
		return cp->cmd(cmdtp, flag, argc, argv);

	return CMD_RET_USAGE;
}

#ifdef CONFIG_SYS_LONGHELP
static char env_help_text[] =
#if defined(CONFIG_CMD_ASKENV)
	"ask name [message] [size] - ask for environment variable\nenv "
#endif
	"default [-f] -a - [forcibly] reset default environment\n"
	"env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
#if defined(CONFIG_CMD_EDITENV)
	"env edit name - edit environment variable\n"
#endif
#if defined(CONFIG_CMD_EXPORTENV)
	"env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n"
#endif
#if defined(CONFIG_CMD_GREPENV)
	"env grep string [...] - search environment\n"
#endif
#if defined(CONFIG_CMD_IMPORTENV)
	"env import [-d] [-t | -b | -c] addr [size] - import environment\n"
#endif
	"env print [name ...] - print environment\n"
#if defined(CONFIG_CMD_RUN)
	"env run var [...] - run commands in an environment variable\n"
#endif
#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
	"env save - save environment\n"
#endif
	"env set [-f] name [arg ...]\n";
#endif

U_BOOT_CMD(
	env, CONFIG_SYS_MAXARGS, 1, do_env,
	"environment handling commands", env_help_text
);

/*
 * Old command line interface, kept for compatibility
 */

#if defined(CONFIG_CMD_EDITENV)
U_BOOT_CMD_COMPLETE(
	editenv, 2, 0,	do_env_edit,
	"edit environment variable",
	"name\n"
	"    - edit environment variable 'name'",
	var_complete
);
#endif

U_BOOT_CMD_COMPLETE(
	printenv, CONFIG_SYS_MAXARGS, 1,	do_env_print,
	"print environment variables",
	"\n    - print values of all environment variables\n"
	"printenv name ...\n"
	"    - print value of environment variable 'name'",
	var_complete
);

#ifdef CONFIG_CMD_GREPENV
U_BOOT_CMD_COMPLETE(
	grepenv, CONFIG_SYS_MAXARGS, 0,  do_env_grep,
	"search environment variables",
	"string ...\n"
	"    - list environment name=value pairs matching 'string'",
	var_complete
);
#endif

U_BOOT_CMD_COMPLETE(
	setenv, CONFIG_SYS_MAXARGS, 0,	do_env_set,
	"set environment variables",
	"name value ...\n"
	"    - set environment variable 'name' to 'value ...'\n"
	"setenv name\n"
	"    - delete environment variable 'name'",
	var_complete
);

#if defined(CONFIG_CMD_ASKENV)

U_BOOT_CMD(
	askenv,	CONFIG_SYS_MAXARGS,	1,	do_env_ask,
	"get environment variables from stdin",
	"name [message] [size]\n"
	"    - get environment variable 'name' from stdin (max 'size' chars)\n"
	"askenv name\n"
	"    - get environment variable 'name' from stdin\n"
	"askenv name size\n"
	"    - get environment variable 'name' from stdin (max 'size' chars)\n"
	"askenv name [message] size\n"
	"    - display 'message' string and get environment variable 'name'"
	"from stdin (max 'size' chars)"
);
#endif

#if defined(CONFIG_CMD_RUN)
U_BOOT_CMD_COMPLETE(
	run,	CONFIG_SYS_MAXARGS,	1,	do_run,
	"run commands in an environment variable",
	"var [...]\n"
	"    - run the commands in the environment variable(s) 'var'",
	var_complete
);
#endif
#endif /* CONFIG_SPL_BUILD */