cramfs: add handler to create cramfs filesystem images

Signed-off-by: Julien Viard de Galbert <julien.viarddegalbert@openwide.fr>
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>

1 files changed, 47 insertions, 0 deletions

diff --git a/image-cramfs.c b/image-cramfs.c
new file mode 100644
index 0000000..e8a0ecc
--- /dev/null
+++ b/image-cramfs.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2016 Julien Viard de Galbert <julien.viarddegalbert@openwide.fr>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <confuse.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "genimage.h"
+
+static int cram_generate(struct image *image)
+{
+	char *extraargs = cfg_getstr(image->imagesec, "extraargs");
+
+	return systemp(image, "%s%s%s %s %s %s",
+			get_opt("mkcramfs"),
+			image->name ? " -n " : "",
+			image->name ? image->name : "", /* name */
+			extraargs,
+			mountpath(image), /* source dir */
+			imageoutfile(image)); /* destination file */
+}
+
+static cfg_opt_t cram_opts[] = {
+	CFG_STR("extraargs", "", CFGF_NONE),
+	CFG_END()
+};
+
+struct image_handler cramfs_handler = {
+	.type = "cramfs",
+	.generate = cram_generate,
+	.opts = cram_opts,
+};