From 2966bba2160e3d9e828c1eadcd9a35a84878e664 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <j.beisert@pengutronix.de>
Date: Fri, 9 Nov 2007 22:09:25 +0100
Subject: separating environment commands, part 1

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
---
 commands/printenv.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 commands/printenv.c

(limited to 'commands/printenv.c')

diff --git a/commands/printenv.c b/commands/printenv.c
new file mode 100644
index 0000000000..385596c2a3
--- /dev/null
+++ b/commands/printenv.c
@@ -0,0 +1,88 @@
+/*
+ * 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 printenv: Print out environment variables
+ */
+
+#include <common.h>
+#include <command.h>
+#include <errno.h>
+#include <environment.h>
+
+static int do_printenv (cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+	struct variable_d *var;
+	struct env_context *c, *current_c;
+
+	if (argc == 2) {
+		const char *val = getenv(argv[1]);
+		if (val) {
+			printf("%s=%s\n", argv[1], val);
+			return 0;
+		}
+		printf("## Error: \"%s\" not defined\n", argv[1]);
+		return -EINVAL;
+	}
+
+	current_c = get_current_context();
+	var = current_c->local->next;
+	printf("locals:\n");
+	while (var) {
+		printf("%s=%s\n", var_name(var), var_val(var));
+		var = var->next;
+	}
+
+	printf("globals:\n");
+	c = get_current_context();
+	while(c) {
+		var = c->global->next;
+		while (var) {
+			printf("%s=%s\n", var_name(var), var_val(var));
+			var = var->next;
+		}
+		c = c->parent;
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD_START(printenv)
+	.maxargs	= CONFIG_MAXARGS,
+	.cmd		= do_printenv,
+	.usage		= "print environment variables",
+	U_BOOT_CMD_HELP(
+	"\n    - print values of all environment variables\n"
+	"printenv name ...\n"
+	"    - print value of environment variable 'name'\n")
+U_BOOT_CMD_END
+
+/**
+ * @page printenv_command printenv
+ *
+ * Usage: printenv [\<name>]
+ *
+ * Print environment variables.
+ * If \<name> was given, it prints out its content if the environment variable
+ * \<name> exists.
+ *
+ * Without the \<name> argument all current environment variables are printed.
+ */
-- 
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