separating environment commands, part 1

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>

1 files changed, 73 insertions, 0 deletions

diff --git a/commands/export.c b/commands/export.c
new file mode 100644
index 0000000000..b5eb5cf483
--- /dev/null
+++ b/commands/export.c
@@ -0,0 +1,73 @@
+/*
+ * 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 export: Export an environment variable
+ */
+
+#include <common.h>
+#include <command.h>
+#include <errno.h>
+#include <environment.h>
+
+static int do_export ( cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+	int i = 1;
+	char *ptr;
+
+	if (argc < 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	while (i < argc) {
+		if ((ptr = strchr(argv[i], '='))) {
+			*ptr++ = 0;
+			setenv(argv[i], ptr);
+		}
+		if (export(argv[i])) {
+			printf("could not export: %s\n", argv[i]);
+			return 1;
+		}
+		i++;
+	}
+
+	return 0;
+}
+
+static __maybe_unused char cmd_export_help[] =
+"Usage: export <var>[=value]...\n"
+"export an environment variable to subsequently executed scripts\n";
+
+U_BOOT_CMD_START(export)
+	.maxargs	= CONFIG_MAXARGS,
+	.cmd		= do_export,
+	.usage		= "export environment variables",
+	U_BOOT_CMD_HELP(cmd_export_help)
+U_BOOT_CMD_END
+
+/**
+ * @page export_command export: Export an environment variable
+ *
+ * Usage: export \<var>[=value]...
+ *
+ * Export an environment variable to subsequently executed scripts.
+ */