scripts: bareboxcrc32 as host and target userspacetool

This patch adds the crc32 command to be build
as host and optionally as target tool.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 60 insertions, 0 deletions

diff --git a/scripts/bareboxcrc32.c b/scripts/bareboxcrc32.c
new file mode 100644
index 0000000000..e00ffafeb7
--- /dev/null
+++ b/scripts/bareboxcrc32.c
@@ -0,0 +1,60 @@
+/*
+ * bareboxcrc32.c - generate crc32 checksum in little endian
+ *
+ * Copyright (c) 2013 Michael Grzeschik <mgr@pengutronix.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 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.
+ *
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <limits.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <libgen.h>
+
+#include "compiler.h"
+
+#define debug(...)
+
+#include "../crypto/crc32.c"
+
+int main(int argc, char *argv[])
+{
+	loff_t start = 0, size = ~0;
+	ulong crc = 0, total = 0;
+	char *filename = NULL;
+	int i;
+
+	if (!filename && argc < 2) {
+		printf("usage: %s filename\n", argv[0]);
+		exit(1);
+	}
+
+	for (i = 1; i < argc; i++) {
+		filename = argv[i];
+		if (file_crc(filename, start, size, &crc, &total) < 0)
+			exit(1);
+		printf("%08lx\t%s\n", crc, filename);
+	}
+
+	exit(0);
+
+}