1 files changed, 141 insertions, 0 deletions
diff --git a/u-boot/tools/env/fw_env_main.c b/u-boot/tools/env/fw_env_main.c
new file mode 100644
index 0000000..c654057
--- /dev/null
+++ b/u-boot/tools/env/fw_env_main.c
@@ -0,0 +1,141 @@
+/*
+ * (C) Copyright 2000-2008
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ */
+
+/*
+ * Command line user interface to firmware (=U-Boot) environment.
+ *
+ * Implements:
+ *	fw_printenv [[ -n name ] | [ name ... ]]
+ *              - prints the value of a single environment variable
+ *                "name", the ``name=value'' pairs of one or more
+ *                environment variables "name", or the whole
+ *                environment if no names are specified.
+ *	fw_setenv name [ value ... ]
+ *		- If a name without any values is given, the variable
+ *		  with this name is deleted from the environment;
+ *		  otherwise, all "value" arguments are concatenated,
+ *		  separated by single blank characters, and the
+ *		  resulting string is assigned to the environment
+ *		  variable "name"
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include "fw_env.h"
+
+#define	CMD_PRINTENV	"fw_printenv"
+#define CMD_SETENV	"fw_setenv"
+
+static struct option long_options[] = {
+	{"script", required_argument, NULL, 's'},
+	{"help", no_argument, NULL, 'h'},
+	{NULL, 0, NULL, 0}
+};
+
+void usage(void)
+{
+
+	fprintf(stderr, "fw_printenv/fw_setenv, "
+		"a command line interface to U-Boot environment\n\n"
+		"usage:\tfw_printenv [-n] [variable name]\n"
+		"\tfw_setenv [variable name] [variable value]\n"
+		"\tfw_setenv -s [ file ]\n"
+		"\tfw_setenv -s - < [ file ]\n\n"
+		"The file passed as argument contains only pairs "
+		"name / value\n"
+		"Example:\n"
+		"# Any line starting with # is treated as comment\n"
+		"\n"
+		"\t      netdev         eth0\n"
+		"\t      kernel_addr    400000\n"
+		"\t      var1\n"
+		"\t      var2          The quick brown fox jumps over the "
+		"lazy dog\n"
+		"\n"
+		"A variable without value will be dropped. It is possible\n"
+		"to put any number of spaces between the fields, but any\n"
+		"space inside the value is treated as part of the value "
+		"itself.\n\n"
+	);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char *p;
+	char *cmdname = *argv;
+	char *script_file = NULL;
+	int c;
+
+	if ((p = strrchr (cmdname, '/')) != NULL) {
+		cmdname = p + 1;
+	}
+
+	while ((c = getopt_long (argc, argv, "ns:h",
+		long_options, NULL)) != EOF) {
+		switch (c) {
+		case 'n':
+			/* handled in fw_printenv */
+			break;
+		case 's':
+			script_file = optarg;
+			break;
+		case 'h':
+			usage();
+			return EXIT_SUCCESS;
+		default: /* '?' */
+			fprintf(stderr, "Try `%s --help' for more information."
+				"\n", cmdname);
+			return EXIT_FAILURE;
+		}
+	}
+
+
+	if (strcmp(cmdname, CMD_PRINTENV) == 0) {
+
+		if (fw_printenv (argc, argv) != 0)
+			return EXIT_FAILURE;
+
+		return EXIT_SUCCESS;
+
+	} else if (strcmp(cmdname, CMD_SETENV) == 0) {
+		if (!script_file) {
+			if (fw_setenv(argc, argv) != 0)
+				return EXIT_FAILURE;
+		} else {
+			if (fw_parse_script(script_file) != 0)
+				return EXIT_FAILURE;
+		}
+
+		return EXIT_SUCCESS;
+
+	}
+
+	fprintf (stderr,
+		"Identity crisis - may be called as `" CMD_PRINTENV
+		"' or as `" CMD_SETENV "' but not as `%s'\n",
+		cmdname);
+	return EXIT_FAILURE;
+}