1 files changed, 0 insertions, 172 deletions
diff --git a/lib/sqfs/comp/zstd.c b/lib/sqfs/comp/zstd.c
deleted file mode 100644
index a6d7975..0000000
--- a/lib/sqfs/comp/zstd.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
-/*
- * zstd.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#define SQFS_BUILDING_DLL
-#include "config.h"
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <zstd.h>
-#include <zstd_errors.h>
-
-#include "internal.h"
-
-typedef struct {
-	sqfs_compressor_t base;
-	size_t block_size;
-	ZSTD_CCtx *zctx;
-	int level;
-} zstd_compressor_t;
-
-typedef struct {
-	sqfs_u32 level;
-} zstd_options_t;
-
-static int zstd_write_options(sqfs_compressor_t *base, sqfs_file_t *file)
-{
-	zstd_compressor_t *zstd = (zstd_compressor_t *)base;
-	zstd_options_t opt;
-
-	if (zstd->level == SQFS_ZSTD_DEFAULT_LEVEL)
-		return 0;
-
-	opt.level = htole32(zstd->level);
-	return sqfs_generic_write_options(file, &opt, sizeof(opt));
-}
-
-static int zstd_read_options(sqfs_compressor_t *base, sqfs_file_t *file)
-{
-	zstd_options_t opt;
-	int ret;
-	(void)base;
-
-	ret = sqfs_generic_read_options(file, &opt, sizeof(opt));
-	if (ret)
-		return ret;
-
-	opt.level = le32toh(opt.level);
-	return 0;
-}
-
-static sqfs_s32 zstd_comp_block(sqfs_compressor_t *base, const sqfs_u8 *in,
-				sqfs_u32 size, sqfs_u8 *out, sqfs_u32 outsize)
-{
-	zstd_compressor_t *zstd = (zstd_compressor_t *)base;
-	size_t ret;
-
-	if (size >= 0x7FFFFFFF)
-		return SQFS_ERROR_ARG_INVALID;
-
-	ret = ZSTD_compressCCtx(zstd->zctx, out, outsize, in, size,
-				zstd->level);
-
-	if (ZSTD_isError(ret)) {
-		if (ZSTD_getErrorCode(ret) == ZSTD_error_dstSize_tooSmall)
-			return 0;
-
-		return SQFS_ERROR_COMPRESSOR;
-	}
-
-	return ret < size ? ret : 0;
-}
-
-static sqfs_s32 zstd_uncomp_block(sqfs_compressor_t *base, const sqfs_u8 *in,
-				  sqfs_u32 size, sqfs_u8 *out, sqfs_u32 outsize)
-{
-	size_t ret;
-	(void)base;
-
-	if (outsize >= 0x7FFFFFFF)
-		return SQFS_ERROR_ARG_INVALID;
-
-	ret = ZSTD_decompress(out, outsize, in, size);
-
-	if (ZSTD_isError(ret))
-		return SQFS_ERROR_COMPRESSOR;
-
-	return ret;
-}
-
-static void zstd_get_configuration(const sqfs_compressor_t *base,
-				   sqfs_compressor_config_t *cfg)
-{
-	const zstd_compressor_t *zstd = (const zstd_compressor_t *)base;
-
-	memset(cfg, 0, sizeof(*cfg));
-	cfg->id = SQFS_COMP_ZSTD;
-
-	cfg->block_size = zstd->block_size;
-	cfg->level = zstd->level;
-
-	if (base->do_block == zstd_uncomp_block)
-		cfg->flags |= SQFS_COMP_FLAG_UNCOMPRESS;
-}
-
-static sqfs_object_t *zstd_create_copy(const sqfs_object_t *cmp)
-{
-	zstd_compressor_t *zstd = malloc(sizeof(*zstd));
-
-	if (zstd == NULL)
-		return NULL;
-
-	memcpy(zstd, cmp, sizeof(*zstd));
-
-	zstd->zctx = ZSTD_createCCtx();
-
-	if (zstd->zctx == NULL) {
-		free(zstd);
-		return NULL;
-	}
-
-	return (sqfs_object_t *)zstd;
-}
-
-static void zstd_destroy(sqfs_object_t *base)
-{
-	zstd_compressor_t *zstd = (zstd_compressor_t *)base;
-
-	ZSTD_freeCCtx(zstd->zctx);
-	free(zstd);
-}
-
-int zstd_compressor_create(const sqfs_compressor_config_t *cfg,
-			   sqfs_compressor_t **out)
-{
-	zstd_compressor_t *zstd;
-	sqfs_compressor_t *base;
-
-	if (cfg->flags & ~SQFS_COMP_FLAG_GENERIC_ALL)
-		return SQFS_ERROR_UNSUPPORTED;
-
-	if (cfg->level < 1 || cfg->level > (unsigned int)ZSTD_maxCLevel())
-		return SQFS_ERROR_UNSUPPORTED;
-
-	zstd = calloc(1, sizeof(*zstd));
-	base = (sqfs_compressor_t *)zstd;
-	if (zstd == NULL)
-		return SQFS_ERROR_ALLOC;
-
-	sqfs_object_init(zstd, zstd_destroy, zstd_create_copy);
-
-	zstd->block_size = cfg->block_size;
-	zstd->level = cfg->level;
-	zstd->zctx = ZSTD_createCCtx();
-	if (zstd->zctx == NULL) {
-		free(zstd);
-		return SQFS_ERROR_COMPRESSOR;
-	}
-
-	base->get_configuration = zstd_get_configuration;
-	base->do_block = cfg->flags & SQFS_COMP_FLAG_UNCOMPRESS ?
-		zstd_uncomp_block : zstd_comp_block;
-	base->write_options = zstd_write_options;
-	base->read_options = zstd_read_options;
-
-	*out = base;
-	return 0;
-}