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authorH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
committerH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
commit92988a21ad4c4c9504295ccb580c9f806134471b (patch)
tree5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/board/netstar/crcit.c
parentca2b506783b676c95762c54ea24dcfdaae1947c9 (diff)
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added boot script files to repository
Diffstat (limited to 'u-boot/board/netstar/crcit.c')
-rw-r--r--u-boot/board/netstar/crcit.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/u-boot/board/netstar/crcit.c b/u-boot/board/netstar/crcit.c
new file mode 100644
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--- /dev/null
+++ b/u-boot/board/netstar/crcit.c
@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2005
+ * 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
+ *
+ * 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
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "crcek.h"
+
+extern uint32_t crc32(uint32_t, const unsigned char *, uint);
+
+static uint32_t data[LOADER_SIZE/4 + 3];
+
+static int do_crc(char *path, unsigned version)
+{
+ uint32_t *p;
+ ssize_t size;
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1) {
+ perror("Error opening file");
+ return EXIT_FAILURE;
+ }
+ p = data + 2;
+ size = read(fd, p, LOADER_SIZE + 4);
+ if (size == -1) {
+ perror("Error reading file");
+ return EXIT_FAILURE;
+ }
+ if (size > LOADER_SIZE) {
+ fprintf(stderr, "File too large\n");
+ return EXIT_FAILURE;
+ }
+ size = (size + 3) & ~3; /* round up to 4 bytes */
+ size += 4; /* add size of version field */
+ data[0] = size;
+ data[1] = version;
+ data[size/4 + 1] = crc32(0, (unsigned char *)(data + 1), size);
+ close(fd);
+
+ if (write(STDOUT_FILENO, data, size + 4 /*size*/ + 4 /*crc*/) == -1) {
+ perror("Error writing file");
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}
+
+int main(int argc, char * const *argv)
+{
+ if (argc == 2) {
+ return do_crc(argv[1], 0);
+ } else if ((argc == 4) && (strcmp(argv[1], "-v") == 0)) {
+ char *endptr, *nptr = argv[2];
+ unsigned ver = strtoul(nptr, &endptr, 0);
+ if (*nptr != '\0' && *endptr == '\0')
+ return do_crc(argv[3], ver);
+ }
+ fprintf(stderr, "Usage: crcit [-v version] <image>\n");
+
+ return EXIT_FAILURE;
+}