Move library source into src sub-directory

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

1 files changed, 0 insertions, 336 deletions

diff --git a/lib/sqfs/xattr/xattr_reader.c b/lib/sqfs/xattr/xattr_reader.c
deleted file mode 100644
index 9e3ea76..0000000
--- a/lib/sqfs/xattr/xattr_reader.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
-/*
- * xattr_reader.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#define SQFS_BUILDING_DLL
-#include "config.h"
-
-#include "sqfs/xattr_reader.h"
-#include "sqfs/meta_reader.h"
-#include "sqfs/super.h"
-#include "sqfs/xattr.h"
-#include "sqfs/error.h"
-#include "sqfs/block.h"
-#include "sqfs/io.h"
-#include "util/util.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-struct sqfs_xattr_reader_t {
-	sqfs_object_t base;
-
-	sqfs_u64 xattr_start;
-	sqfs_u64 xattr_end;
-
-	size_t num_id_blocks;
-	size_t num_ids;
-
-	sqfs_u64 *id_block_starts;
-
-	sqfs_meta_reader_t *idrd;
-	sqfs_meta_reader_t *kvrd;
-};
-
-static sqfs_object_t *xattr_reader_copy(const sqfs_object_t *obj)
-{
-	const sqfs_xattr_reader_t *xr = (const sqfs_xattr_reader_t *)obj;
-	sqfs_xattr_reader_t *copy = malloc(sizeof(*copy));
-
-	if (copy == NULL)
-		return NULL;
-
-	memcpy(copy, xr, sizeof(*xr));
-
-	if (xr->kvrd != NULL) {
-		copy->kvrd = sqfs_copy(xr->kvrd);
-		if (copy->kvrd == NULL)
-			goto fail;
-	}
-
-	if (xr->idrd != NULL) {
-		copy->idrd = sqfs_copy(xr->idrd);
-		if (copy->idrd == NULL)
-			goto fail;
-	}
-
-	if (xr->id_block_starts != NULL) {
-		copy->id_block_starts = alloc_array(sizeof(sqfs_u64),
-						    xr->num_id_blocks);
-		if (copy->id_block_starts == NULL)
-			goto fail;
-
-		memcpy(copy->id_block_starts, xr->id_block_starts,
-		       sizeof(sqfs_u64) * xr->num_id_blocks);
-	}
-
-	return (sqfs_object_t *)copy;
-fail:
-	sqfs_drop(copy->idrd);
-	sqfs_drop(copy->kvrd);
-	free(copy);
-	return NULL;
-}
-
-static void xattr_reader_destroy(sqfs_object_t *obj)
-{
-	sqfs_xattr_reader_t *xr = (sqfs_xattr_reader_t *)obj;
-
-	sqfs_drop(xr->kvrd);
-	sqfs_drop(xr->idrd);
-	free(xr->id_block_starts);
-	free(xr);
-}
-
-int sqfs_xattr_reader_load(sqfs_xattr_reader_t *xr, const sqfs_super_t *super,
-			   sqfs_file_t *file, sqfs_compressor_t *cmp)
-{
-	sqfs_xattr_id_table_t idtbl;
-	size_t i;
-	int err;
-
-	/* sanity check */
-	if (super->flags & SQFS_FLAG_NO_XATTRS)
-		return 0;
-
-	if (super->xattr_id_table_start == 0xFFFFFFFFFFFFFFFF)
-		return 0;
-
-	if (super->xattr_id_table_start >= super->bytes_used)
-		return SQFS_ERROR_OUT_OF_BOUNDS;
-
-	/* cleanup pre-existing data */
-	xr->idrd = sqfs_drop(xr->idrd);
-	xr->kvrd = sqfs_drop(xr->kvrd);
-
-	free(xr->id_block_starts);
-	xr->id_block_starts = NULL;
-
-	/* read the locations table */
-	err = file->read_at(file, super->xattr_id_table_start,
-			    &idtbl, sizeof(idtbl));
-	if (err)
-		return err;
-
-	xr->xattr_start = le64toh(idtbl.xattr_table_start);
-	xr->num_ids = le32toh(idtbl.xattr_ids);
-	xr->num_id_blocks =
-		(xr->num_ids * sizeof(sqfs_xattr_id_t)) / SQFS_META_BLOCK_SIZE;
-
-	if ((xr->num_ids * sizeof(sqfs_xattr_id_t)) % SQFS_META_BLOCK_SIZE)
-		xr->num_id_blocks += 1;
-
-	xr->id_block_starts = alloc_array(sizeof(sqfs_u64), xr->num_id_blocks);
-	if (xr->id_block_starts == NULL) {
-		if (errno == EOVERFLOW)
-			return SQFS_ERROR_OVERFLOW;
-		return SQFS_ERROR_ALLOC;
-	}
-
-	err = file->read_at(file, super->xattr_id_table_start + sizeof(idtbl),
-			    xr->id_block_starts,
-			    sizeof(sqfs_u64) * xr->num_id_blocks);
-	if (err)
-		goto fail_blocks;
-
-	for (i = 0; i < xr->num_id_blocks; ++i) {
-		xr->id_block_starts[i] = le64toh(xr->id_block_starts[i]);
-
-		if (xr->id_block_starts[i] > super->bytes_used) {
-			err = SQFS_ERROR_OUT_OF_BOUNDS;
-			goto fail_blocks;
-		}
-	}
-
-	/* create the meta data readers */
-	xr->idrd = sqfs_meta_reader_create(file, cmp, super->id_table_start,
-					   super->bytes_used);
-	if (xr->idrd == NULL)
-		goto fail_blocks;
-
-	xr->kvrd = sqfs_meta_reader_create(file, cmp, super->id_table_start,
-					   super->bytes_used);
-	if (xr->kvrd == NULL)
-		goto fail_idrd;
-
-	xr->xattr_end = super->bytes_used;
-	return 0;
-fail_idrd:
-	xr->idrd = sqfs_drop(xr->idrd);
-fail_blocks:
-	free(xr->id_block_starts);
-	xr->id_block_starts = NULL;
-	return err;
-}
-
-int sqfs_xattr_reader_read_key(sqfs_xattr_reader_t *xr,
-			       sqfs_xattr_entry_t **key_out)
-{
-	sqfs_xattr_entry_t key, *out;
-	const char *prefix;
-	size_t plen, total;
-	int ret;
-
-	ret = sqfs_meta_reader_read(xr->kvrd, &key, sizeof(key));
-	if (ret)
-		return ret;
-
-	key.type = le16toh(key.type);
-	key.size = le16toh(key.size);
-
-	prefix = sqfs_get_xattr_prefix(key.type & SQFS_XATTR_PREFIX_MASK);
-	if (prefix == NULL)
-		return SQFS_ERROR_UNSUPPORTED;
-
-	plen = strlen(prefix);
-
-	if (SZ_ADD_OV(plen, key.size, &total) || SZ_ADD_OV(total, 1, &total) ||
-	    SZ_ADD_OV(sizeof(*out), total, &total)) {
-		return SQFS_ERROR_OVERFLOW;
-	}
-
-	out = calloc(1, total);
-	if (out == NULL)
-		return SQFS_ERROR_ALLOC;
-
-	*out = key;
-	memcpy(out->key, prefix, plen);
-
-	ret = sqfs_meta_reader_read(xr->kvrd, out->key + plen, key.size);
-	if (ret) {
-		free(out);
-		return ret;
-	}
-
-	*key_out = out;
-	return 0;
-}
-
-int sqfs_xattr_reader_read_value(sqfs_xattr_reader_t *xr,
-				 const sqfs_xattr_entry_t *key,
-				 sqfs_xattr_value_t **val_out)
-{
-	size_t offset, new_offset, size;
-	sqfs_xattr_value_t value, *out;
-	sqfs_u64 ref, start, new_start;
-	int ret;
-
-	ret = sqfs_meta_reader_read(xr->kvrd, &value, sizeof(value));
-	if (ret)
-		return ret;
-
-	if (key->type & SQFS_XATTR_FLAG_OOL) {
-		ret = sqfs_meta_reader_read(xr->kvrd, &ref, sizeof(ref));
-		if (ret)
-			return ret;
-
-		sqfs_meta_reader_get_position(xr->kvrd, &start, &offset);
-
-		new_start = xr->xattr_start + (ref >> 16);
-		if (new_start >= xr->xattr_end)
-			return SQFS_ERROR_OUT_OF_BOUNDS;
-
-		new_offset = ref & 0xFFFF;
-		if (new_offset >= SQFS_META_BLOCK_SIZE)
-			return SQFS_ERROR_OUT_OF_BOUNDS;
-
-		ret = sqfs_meta_reader_seek(xr->kvrd, new_start, new_offset);
-		if (ret)
-			return ret;
-
-		ret = sqfs_meta_reader_read(xr->kvrd, &value, sizeof(value));
-		if (ret)
-			return ret;
-	}
-
-	value.size = le32toh(value.size);
-
-	if (SZ_ADD_OV(sizeof(*out), value.size, &size) ||
-	    SZ_ADD_OV(size, 1, &size)) {
-		return SQFS_ERROR_OVERFLOW;
-	}
-
-	out = calloc(1, size);
-	if (out == NULL)
-		return SQFS_ERROR_ALLOC;
-
-	*out = value;
-
-	ret = sqfs_meta_reader_read(xr->kvrd, out->value, value.size);
-	if (ret)
-		goto fail;
-
-	if (key->type & SQFS_XATTR_FLAG_OOL) {
-		ret = sqfs_meta_reader_seek(xr->kvrd, start, offset);
-		if (ret)
-			goto fail;
-	}
-
-	*val_out = out;
-	return 0;
-fail:
-	free(out);
-	return ret;
-}
-
-int sqfs_xattr_reader_seek_kv(sqfs_xattr_reader_t *xr,
-			      const sqfs_xattr_id_t *desc)
-{
-	sqfs_u32 offset = desc->xattr & 0xFFFF;
-	sqfs_u64 block = xr->xattr_start + (desc->xattr >> 16);
-
-	return sqfs_meta_reader_seek(xr->kvrd, block, offset);
-}
-
-int sqfs_xattr_reader_get_desc(sqfs_xattr_reader_t *xr, sqfs_u32 idx,
-			       sqfs_xattr_id_t *desc)
-{
-	size_t block, offset;
-	int ret;
-
-	memset(desc, 0, sizeof(*desc));
-
-	if (idx == 0xFFFFFFFF)
-		return 0;
-
-	if (xr->kvrd == NULL || xr->idrd == NULL)
-		return idx == 0 ? 0 : SQFS_ERROR_OUT_OF_BOUNDS;
-
-	if (idx >= xr->num_ids)
-		return SQFS_ERROR_OUT_OF_BOUNDS;
-
-	offset = (idx * sizeof(*desc)) % SQFS_META_BLOCK_SIZE;
-	block = (idx * sizeof(*desc)) / SQFS_META_BLOCK_SIZE;
-
-	ret = sqfs_meta_reader_seek(xr->idrd, xr->id_block_starts[block],
-				    offset);
-	if (ret)
-		return ret;
-
-	ret = sqfs_meta_reader_read(xr->idrd, desc, sizeof(*desc));
-	if (ret)
-		return ret;
-
-	desc->xattr = le64toh(desc->xattr);
-	desc->count = le32toh(desc->count);
-	desc->size = le32toh(desc->size);
-	return 0;
-}
-
-sqfs_xattr_reader_t *sqfs_xattr_reader_create(sqfs_u32 flags)
-{
-	sqfs_xattr_reader_t *xr;
-
-	if (flags != 0)
-		return NULL;
-
-	xr = calloc(1, sizeof(*xr));
-	if (xr == NULL)
-		return NULL;
-
-	sqfs_object_init(xr, xattr_reader_destroy, xattr_reader_copy);
-	return xr;
-}