Split libsquashfs.a into low seperate libraries

The idea is to make libsquashfs.a independend of libfstree.a, so it becomes
a general purpose squashfs manipulation library. All the high level glue code
for libfstree.a and utilites that are overly specific with to tools are moved
to a seperate librarby.

This commit makes the first step by moving the stuff with dependencies on
libfstree to a seperate library.

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

1 files changed, 0 insertions, 167 deletions

diff --git a/lib/sqfs/tree_node_from_inode.c b/lib/sqfs/tree_node_from_inode.c
deleted file mode 100644
index 582399c..0000000
--- a/lib/sqfs/tree_node_from_inode.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * tree_node_from_inode.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-
-#include "highlevel.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-static size_t compute_size(sqfs_inode_generic_t *inode, const char *name,
-			   size_t block_size)
-{
-	size_t size = sizeof(tree_node_t) + strlen(name) + 1;
-	size_t block_count = 0;
-
-	switch (inode->base.type) {
-	case SQFS_INODE_DIR:
-	case SQFS_INODE_EXT_DIR:
-		size += sizeof(dir_info_t);
-		break;
-	case SQFS_INODE_FILE:
-		size += sizeof(file_info_t);
-		block_count = inode->data.file.file_size / block_size;
-		if ((inode->data.file.file_size % block_size) != 0)
-			++block_count;
-		break;
-	case SQFS_INODE_EXT_FILE:
-		size += sizeof(file_info_t);
-		block_count = inode->data.file_ext.file_size / block_size;
-		if ((inode->data.file_ext.file_size % block_size) != 0)
-			++block_count;
-		break;
-	case SQFS_INODE_SLINK:
-	case SQFS_INODE_EXT_SLINK:
-		size += strlen(inode->slink_target) + 1;
-		break;
-	default:
-		break;
-	}
-
-	return size + block_count * sizeof(((file_info_t *)0)->blocks[0]);
-}
-
-static void copy_block_sizes(sqfs_inode_generic_t *inode, tree_node_t *out,
-			     size_t block_size)
-{
-	size_t i, block_count = out->data.file->size / block_size;
-
-	if ((out->data.file->size % block_size) != 0) {
-		if (out->data.file->fragment == 0xFFFFFFFF ||
-		    out->data.file->fragment_offset == 0xFFFFFFFF) {
-			++block_count;
-		} else {
-			out->data.file->flags |= FILE_FLAG_HAS_FRAGMENT;
-		}
-	}
-
-	out->name += block_count * sizeof(out->data.file->blocks[0]);
-
-	for (i = 0; i < block_count; ++i)
-		out->data.file->blocks[i].size = inode->block_sizes[i];
-}
-
-tree_node_t *tree_node_from_inode(sqfs_inode_generic_t *inode,
-				  const id_table_t *idtbl,
-				  const char *name,
-				  size_t block_size)
-{
-	tree_node_t *out;
-
-	if (inode->base.uid_idx >= idtbl->num_ids) {
-		fputs("converting inode to fs tree node: UID out of range\n",
-		      stderr);
-		return NULL;
-	}
-
-	if (inode->base.gid_idx >= idtbl->num_ids) {
-		fputs("converting inode to fs tree node: GID out of range\n",
-		      stderr);
-		return NULL;
-	}
-
-	out = calloc(1, compute_size(inode, name, block_size));
-	if (out == NULL) {
-		perror("converting inode to fs tree node");
-		return NULL;
-	}
-
-	out->uid = idtbl->ids[inode->base.uid_idx];
-	out->gid = idtbl->ids[inode->base.gid_idx];
-	out->mode = inode->base.mode;
-	out->inode_num = inode->base.inode_number;
-	out->mod_time = inode->base.mod_time;
-	out->name = (char *)out->payload;
-
-	switch (inode->base.type) {
-	case SQFS_INODE_DIR:
-		out->data.dir = (dir_info_t *)out->payload;
-		out->name += sizeof(dir_info_t);
-
-		out->data.dir->size = inode->data.dir.size;
-		out->data.dir->start_block = inode->data.dir.start_block;
-		out->data.dir->block_offset = inode->data.dir.offset;
-		break;
-	case SQFS_INODE_EXT_DIR:
-		out->data.dir = (dir_info_t *)out->payload;
-		out->name += sizeof(dir_info_t);
-
-		out->data.dir->size = inode->data.dir_ext.size;
-		out->data.dir->start_block = inode->data.dir_ext.start_block;
-		out->data.dir->block_offset = inode->data.dir_ext.offset;
-		break;
-	case SQFS_INODE_FILE:
-		out->data.file = (file_info_t *)out->payload;
-		out->name += sizeof(file_info_t);
-
-		out->data.file->size = inode->data.file.file_size;
-		out->data.file->startblock = inode->data.file.blocks_start;
-		out->data.file->fragment = inode->data.file.fragment_index;
-		out->data.file->fragment_offset =
-			inode->data.file.fragment_offset;
-
-		copy_block_sizes(inode, out, block_size);
-		break;
-	case SQFS_INODE_EXT_FILE:
-		out->data.file = (file_info_t *)out->payload;
-		out->name += sizeof(file_info_t);
-
-		out->data.file->size = inode->data.file_ext.file_size;
-		out->data.file->sparse = inode->data.file_ext.sparse;
-		out->data.file->startblock = inode->data.file_ext.blocks_start;
-		out->data.file->fragment = inode->data.file_ext.fragment_idx;
-		out->data.file->fragment_offset =
-			inode->data.file_ext.fragment_offset;
-
-		copy_block_sizes(inode, out, block_size);
-		break;
-	case SQFS_INODE_SLINK:
-	case SQFS_INODE_EXT_SLINK:
-		out->data.slink_target = (char *)out->payload;
-		strcpy(out->data.slink_target, inode->slink_target);
-
-		out->name = (char *)out->payload +
-			strlen(inode->slink_target) + 1;
-		break;
-	case SQFS_INODE_BDEV:
-	case SQFS_INODE_CDEV:
-		out->name = (char *)out->payload;
-		out->data.devno = inode->data.dev.devno;
-		break;
-	case SQFS_INODE_EXT_BDEV:
-	case SQFS_INODE_EXT_CDEV:
-		out->name = (char *)out->payload;
-		out->data.devno = inode->data.dev_ext.devno;
-		break;
-	default:
-		break;
-	}
-
-	strcpy(out->name, name);
-	return out;
-}