From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 17:35:18 +0200
Subject: Adding upstream version 252.22.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/import/import-compress.h | 48 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/import/import-compress.h

(limited to 'src/import/import-compress.h')

diff --git a/src/import/import-compress.h b/src/import/import-compress.h
new file mode 100644
index 0000000..0a42103
--- /dev/null
+++ b/src/import/import-compress.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#if HAVE_BZIP2
+#include <bzlib.h>
+#endif
+#include <lzma.h>
+#include <sys/types.h>
+#include <zlib.h>
+
+#include "macro.h"
+
+typedef enum ImportCompressType {
+        IMPORT_COMPRESS_UNKNOWN,
+        IMPORT_COMPRESS_UNCOMPRESSED,
+        IMPORT_COMPRESS_XZ,
+        IMPORT_COMPRESS_GZIP,
+        IMPORT_COMPRESS_BZIP2,
+        _IMPORT_COMPRESS_TYPE_MAX,
+        _IMPORT_COMPRESS_TYPE_INVALID = -EINVAL,
+} ImportCompressType;
+
+typedef struct ImportCompress {
+        ImportCompressType type;
+        bool encoding;
+        union {
+                lzma_stream xz;
+                z_stream gzip;
+#if HAVE_BZIP2
+                bz_stream bzip2;
+#endif
+        };
+} ImportCompress;
+
+typedef int (*ImportCompressCallback)(const void *data, size_t size, void *userdata);
+
+void import_compress_free(ImportCompress *c);
+
+int import_uncompress_detect(ImportCompress *c, const void *data, size_t size);
+void import_uncompress_force_off(ImportCompress *c);
+int import_uncompress(ImportCompress *c, const void *data, size_t size, ImportCompressCallback callback, void *userdata);
+
+int import_compress_init(ImportCompress *c, ImportCompressType t);
+int import_compress(ImportCompress *c, const void *data, size_t size, void **buffer, size_t *buffer_size, size_t *buffer_allocated);
+int import_compress_finish(ImportCompress *c, void **buffer, size_t *buffer_size, size_t *buffer_allocated);
+
+const char* import_compress_type_to_string(ImportCompressType t) _const_;
+ImportCompressType import_compress_type_from_string(const char *s) _pure_;
-- 
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