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-rw-r--r--unpack/dump_xattrs.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/unpack/dump_xattrs.c b/unpack/dump_xattrs.c
new file mode 100644
index 0000000..c619767
--- /dev/null
+++ b/unpack/dump_xattrs.c
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * dump_xattrs.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "rdsquashfs.h"
+
+int dump_xattrs(sqfs_xattr_reader_t *xattr, const sqfs_inode_generic_t *inode)
+{
+ sqfs_xattr_value_t *value;
+ sqfs_xattr_entry_t *key;
+ sqfs_xattr_id_t desc;
+ uint32_t index;
+ size_t i;
+
+ if (xattr == NULL)
+ return 0;
+
+ switch (inode->base.type) {
+ case SQFS_INODE_EXT_DIR:
+ index = inode->data.dir_ext.xattr_idx;
+ break;
+ case SQFS_INODE_EXT_FILE:
+ index = inode->data.file_ext.xattr_idx;
+ break;
+ case SQFS_INODE_EXT_SLINK:
+ index = inode->data.slink_ext.xattr_idx;
+ break;
+ case SQFS_INODE_EXT_BDEV:
+ case SQFS_INODE_EXT_CDEV:
+ index = inode->data.dev_ext.xattr_idx;
+ break;
+ case SQFS_INODE_EXT_FIFO:
+ case SQFS_INODE_EXT_SOCKET:
+ index = inode->data.ipc_ext.xattr_idx;
+ break;
+ default:
+ return 0;
+ }
+
+ if (index == 0xFFFFFFFF)
+ return 0;
+
+ if (sqfs_xattr_reader_get_desc(xattr, index, &desc)) {
+ fputs("Error resolving xattr index\n", stderr);
+ return -1;
+ }
+
+ if (sqfs_xattr_reader_seek_kv(xattr, &desc)) {
+ fputs("Error locating xattr key-value pairs\n", stderr);
+ return -1;
+ }
+
+ for (i = 0; i < desc.count; ++i) {
+ if (sqfs_xattr_reader_read_key(xattr, &key)) {
+ fputs("Error reading xattr key\n", stderr);
+ return -1;
+ }
+
+ if (sqfs_xattr_reader_read_value(xattr, key, &value)) {
+ fputs("Error reading xattr value\n", stderr);
+ free(key);
+ return -1;
+ }
+
+ printf("%s=%s\n", key->key, value->value);
+ free(key);
+ free(value);
+ }
+
+ return 0;
+}