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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/import/import-compress.h
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/import/import-compress.h')
-rw-r--r--src/import/import-compress.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/import/import-compress.h b/src/import/import-compress.h
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+++ b/src/import/import-compress.h
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+/* 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_;