1 files changed, 71 insertions, 0 deletions
diff --git a/commands/iminfo.c b/commands/iminfo.c
new file mode 100644
index 0000000000..2fde9bc09c
--- /dev/null
+++ b/commands/iminfo.c
@@ -0,0 +1,71 @@
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <fs.h>
+#include <malloc.h>
+#include <fcntl.h>
+#include <errno.h>
+
+static int image_info(image_header_t *hdr)
+{
+	u32 len, checksum;
+
+	if (image_get_magic(hdr) != IH_MAGIC) {
+		puts ("   Bad Magic Number\n");
+		return 1;
+	}
+
+	len = image_get_header_size();
+
+	checksum = image_get_hcrc(hdr);
+	hdr->ih_hcrc = 0;
+
+	if (crc32 (0, hdr, len) != checksum) {
+		puts ("   Bad Header Checksum\n");
+		return 1;
+	}
+
+	image_print_contents(hdr, NULL);
+
+	return 0;
+}
+
+static int do_iminfo(struct command *cmdtp, int argc, char *argv[])
+{
+	int rcode = 1;
+	int fd;
+	int ret;
+	image_header_t hdr;
+
+	if (argc != 2)
+		return COMMAND_ERROR_USAGE;
+
+	fd = open(argv[1], O_RDONLY);
+	if (fd < 0) {
+		perror("open");
+		return 1;
+	}
+
+	ret = read(fd, &hdr, sizeof(image_header_t));
+	if (ret != sizeof(image_header_t))
+		goto err_out;
+
+	printf("Image at %s:\n", argv[1]);
+	image_info(&hdr);
+
+err_out:
+	close(fd);
+
+	return rcode;
+}
+
+BAREBOX_CMD_HELP_START(iminfo)
+BAREBOX_CMD_HELP_USAGE("iminfo\n")
+BAREBOX_CMD_HELP_SHORT("Print header information for an application image.\n")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(iminfo)
+	.cmd		= do_iminfo,
+	.usage		= "print header information for an application image",
+	BAREBOX_CMD_HELP(cmd_iminfo_help)
+BAREBOX_CMD_END