add vfat handler

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>

1 files changed, 103 insertions, 0 deletions

diff --git a/image-vfat.c b/image-vfat.c
new file mode 100644
index 0000000..175d319
--- /dev/null
+++ b/image-vfat.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2012 Michael Olbrich <m.olbrich@pengutronix.de>
+ *
+ * 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
+ */
+
+#include <confuse.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "genimage.h"
+
+static int vfat_generate(struct image *image)
+{
+	int ret;
+	struct partition *part;
+	char *extraargs = cfg_getstr(image->imagesec, "extraargs");
+
+	ret = systemp(image, "%s if=/dev/zero of=\"%s\" seek=%lld count=0 bs=1",
+			get_opt("dd"), imageoutfile(image), image->size);
+	if (ret)
+		return ret;
+
+	ret = systemp(image, "%s %s %s", get_opt("mkdosfs"),
+			extraargs, imageoutfile(image));
+	if (ret)
+		return ret;
+
+	list_for_each_entry(part, &image->partitions, list) {
+		struct image *child = image_get(part->image);
+		const char *file = imageoutfile(child);
+		const char *target = part->name;
+
+		ret = systemp(image, "%s -bsp -i %s %s ::%s",
+				get_opt("mcopy"), imageoutfile(image),
+				file, target);
+		if (ret)
+			return ret;
+	}
+	if (!list_empty(&image->partitions))
+		return 0;
+
+	ret = systemp(image, "%s -bsp -i %s %s/* ::", get_opt("mcopy"),
+			imageoutfile(image), mountpath(image));
+	return ret;
+}
+
+static int vfat_parse(struct image *image, cfg_t *cfg)
+{
+	unsigned int i;
+	unsigned int num_files;
+	struct partition *part;
+
+	num_files = cfg_size(cfg, "file");
+	for (i = 0; i < num_files; i++) {
+		cfg_t *filesec = cfg_getnsec(cfg, "file", i);
+		part = xzalloc(sizeof *part);
+		part->name = cfg_title(filesec);
+		part->image = cfg_getstr(filesec, "image");
+		list_add_tail(&part->list, &image->partitions);
+	}
+
+	for(i = 0; i < cfg_size(cfg, "files"); i++) {
+		part = xzalloc(sizeof *part);
+		part->image = cfg_getnstr(cfg, "files", i);
+		part->name = "";
+		list_add_tail(&part->list, &image->partitions);
+	}
+
+	return 0;
+}
+
+static cfg_opt_t file_opts[] = {
+	CFG_STR("image", NULL, CFGF_NONE),
+	CFG_END()
+};
+
+static cfg_opt_t vfat_opts[] = {
+	CFG_STR("extraargs", "", CFGF_NONE),
+	CFG_STR_LIST("files", 0, CFGF_NONE),
+	CFG_SEC("file", file_opts, CFGF_MULTI | CFGF_TITLE),
+	CFG_END()
+};
+
+struct image_handler vfat_handler = {
+	.type = "vfat",
+	.generate = vfat_generate,
+	.parse = vfat_parse,
+	.opts = vfat_opts,
+};