Cleanup: split out sqfs_write_super similar to sqfs_read_super

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/sqfs/write_super.c b/lib/sqfs/write_super.c
new file mode 100644
index 0000000..35127da
--- /dev/null
+++ b/lib/sqfs/write_super.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * write_super.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#define SQFS_BUILDING_DLL
+#include "config.h"
+
+#include "sqfs/super.h"
+#include "sqfs/io.h"
+#include "compat.h"
+
+int sqfs_super_write(const sqfs_super_t *super, sqfs_file_t *file)
+{
+	sqfs_super_t copy;
+
+	copy.magic = htole32(super->magic);
+	copy.inode_count = htole32(super->inode_count);
+	copy.modification_time = htole32(super->modification_time);
+	copy.block_size = htole32(super->block_size);
+	copy.fragment_entry_count = htole32(super->fragment_entry_count);
+	copy.compression_id = htole16(super->compression_id);
+	copy.block_log = htole16(super->block_log);
+	copy.flags = htole16(super->flags);
+	copy.id_count = htole16(super->id_count);
+	copy.version_major = htole16(super->version_major);
+	copy.version_minor = htole16(super->version_minor);
+	copy.root_inode_ref = htole64(super->root_inode_ref);
+	copy.bytes_used = htole64(super->bytes_used);
+	copy.id_table_start = htole64(super->id_table_start);
+	copy.xattr_id_table_start = htole64(super->xattr_id_table_start);
+	copy.inode_table_start = htole64(super->inode_table_start);
+	copy.directory_table_start = htole64(super->directory_table_start);
+	copy.fragment_table_start = htole64(super->fragment_table_start);
+	copy.export_table_start = htole64(super->export_table_start);
+
+	return file->write_at(file, 0, &copy, sizeof(copy));
+}