1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/android/block_list.c b/contrib/android/block_list.c
new file mode 100644
index 0000000..63cc1a2
--- /dev/null
+++ b/contrib/android/block_list.c
@@ -0,0 +1,89 @@
+#include "block_list.h"
+#include "block_range.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+struct block_list {
+	FILE *f;
+	const char *mountpoint;
+
+	const char *filename;
+	struct block_range_list blocks;
+};
+
+static void *init(const char *file, const char *mountpoint)
+{
+	struct block_list *params = calloc(1, sizeof(*params));
+
+	if (!params)
+		return NULL;
+	params->mountpoint = mountpoint;
+	params->f = fopen(file, "w+");
+	if (!params->f) {
+		free(params);
+		return NULL;
+	}
+	return params;
+}
+
+static int start_new_file(char *path, ext2_ino_t ino EXT2FS_ATTR((unused)),
+			  struct ext2_inode *inode EXT2FS_ATTR((unused)),
+			  void *data)
+{
+	struct block_list *params = data;
+
+	params->filename = LINUX_S_ISREG(inode->i_mode) ? path : NULL;
+	return 0;
+}
+
+static int add_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk64_t blocknr,
+		     int metadata, void *data)
+{
+	struct block_list *params = data;
+
+	if (params->filename && !metadata)
+		add_blocks_to_range(&params->blocks, blocknr, blocknr);
+	return 0;
+}
+
+static int inline_data(void *inline_data EXT2FS_ATTR((unused)),
+		       void *data EXT2FS_ATTR((unused)))
+{
+	return 0;
+}
+
+static int end_new_file(void *data)
+{
+	struct block_list *params = data;
+
+	if (!params->filename || !params->blocks.head)
+		return 0;
+	if (fprintf(params->f, "%s%s ", params->mountpoint,
+		    params->filename) < 0
+	    || write_block_ranges(params->f, params->blocks.head, " ")
+	    || fwrite("\n", 1, 1, params->f) != 1)
+		return -1;
+
+	delete_block_ranges(&params->blocks);
+	return 0;
+}
+
+static int cleanup(void *data)
+{
+	struct block_list *params = data;
+
+	fclose(params->f);
+	free(params);
+	return 0;
+}
+
+struct fsmap_format block_list_format = {
+	.init = init,
+	.start_new_file = start_new_file,
+	.add_block = add_block,
+	.inline_data = inline_data,
+	.end_new_file = end_new_file,
+	.cleanup = cleanup,
+};