diff libzip/lib/zipint.h @ 4:2306f4b04790

libzip: import 1.1.2
author David Demelier <markand@malikania.fr>
date Wed, 24 Feb 2016 21:19:28 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libzip/lib/zipint.h	Wed Feb 24 21:19:28 2016 +0100
@@ -0,0 +1,583 @@
+#ifndef _HAD_ZIPINT_H
+#define _HAD_ZIPINT_H
+
+/*
+  zipint.h -- internal declarations.
+  Copyright (C) 1999-2016 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <libzip@nih.at>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+  3. The names of the authors may not be used to endorse or promote
+     products derived from this software without specific prior
+     written permission.
+ 
+  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* to have *_MAX definitions for all types when compiling with g++ */
+#define __STDC_LIMIT_MACROS
+
+#include <zlib.h>
+
+#ifdef _WIN32
+#define ZIP_EXTERN __declspec(dllexport)
+/* for dup(), close(), etc. */
+#include <io.h>
+#endif
+
+#ifndef _ZIP_COMPILING_DEPRECATED
+#define ZIP_DISABLE_DEPRECATED
+#endif
+
+#include "zip.h"
+
+#ifdef HAVE_STDBOOL_H
+#include <stdbool.h>
+#else
+typedef char bool;
+#define true    1
+#define false   0
+#endif
+
+#include <errno.h>
+
+/* at least MinGW does not provide EOPNOTSUPP, see
+ * http://sourceforge.net/p/mingw/bugs/263/
+ */
+#ifndef EOPNOTSUPP
+#define EOPNOTSUPP EINVAL
+#endif
+
+/* at least MinGW does not provide EOVERFLOW, see
+ * http://sourceforge.net/p/mingw/bugs/242/
+ */
+#ifndef EOVERFLOW
+#define EOVERFLOW EFBIG
+#endif
+
+#ifdef _WIN32
+#if defined(HAVE__CLOSE)
+#define close		_close
+#endif
+#if defined(HAVE__DUP)
+#define dup		_dup
+#endif
+/* crashes reported when using fdopen instead of _fdopen on Windows/Visual Studio 10/Win64 */
+#if defined(HAVE__FDOPEN)
+#define fdopen		_fdopen
+#endif
+#if !defined(HAVE_FILENO) && defined(HAVE__FILENO)
+#define fileno		_fileno
+#endif
+/* Windows' open() doesn't understand Unix permissions */
+#if defined(HAVE__OPEN)
+#define open(a, b, c)	_open((a), (b))
+#endif
+#if defined(HAVE__SNPRINTF)
+#define snprintf	_snprintf
+#endif
+#if defined(HAVE__STRDUP)
+#if !defined(HAVE_STRDUP) || defined(_WIN32)
+#undef strdup
+#define strdup		_strdup
+#endif
+#endif
+#if !defined(HAVE__SETMODE) && defined(HAVE_SETMODE)
+#define _setmode	setmode
+#endif
+#endif
+
+#ifndef HAVE_FSEEKO
+#define fseeko(s, o, w)	(fseek((s), (long int)(o), (w)))
+#endif
+
+#ifndef HAVE_FTELLO
+#define ftello(s)	((long)ftell((s)))
+#endif
+
+#ifndef HAVE_MKSTEMP
+int _zip_mkstemp(char *);
+#define mkstemp _zip_mkstemp
+#endif
+
+#if !defined(HAVE_STRCASECMP)
+#if defined(HAVE__STRICMP)
+#define strcasecmp	_stricmp
+#elif defined(HAVE_STRICMP)
+#define strcasecmp	stricmp
+#endif
+#endif
+
+#if SIZEOF_OFF_T == 8
+#define ZIP_OFF_MAX ZIP_INT64_MAX
+#define ZIP_OFF_MIN ZIP_INT64_MIN
+#elif SIZEOF_OFF_T == 4
+#define ZIP_OFF_MAX ZIP_INT32_MAX
+#define ZIP_OFF_MIN ZIP_INT32_MIN
+#elif SIZEOF_OFF_T == 2
+#define ZIP_OFF_MAX ZIP_INT16_MAX
+#define ZIP_OFF_MIN ZIP_INT16_MIN
+#else
+#error unsupported size of off_t
+#endif
+
+#if defined(HAVE_FTELLO) && defined(HAVE_FSEEKO)
+#define ZIP_FSEEK_MAX ZIP_OFF_MAX
+#define ZIP_FSEEK_MIN ZIP_OFF_MIN
+#else
+#include <limits.h>
+#define ZIP_FSEEK_MAX LONG_MAX
+#define ZIP_FSEEK_MIN LONG_MIN
+#endif
+
+#ifndef SIZE_MAX
+#if SIZEOF_SIZE_T == 8
+#define SIZE_MAX ZIP_INT64_MAX
+#elif SIZEOF_SIZE_T == 4
+#define SIZE_MAX ZIP_INT32_MAX
+#elif SIZEOF_SIZE_T == 2
+#define SIZE_MAX ZIP_INT16_MAX
+#else
+#error unsupported size of size_t
+#endif
+#endif
+
+#define CENTRAL_MAGIC "PK\1\2"
+#define LOCAL_MAGIC   "PK\3\4"
+#define EOCD_MAGIC    "PK\5\6"
+#define DATADES_MAGIC "PK\7\8"
+#define EOCD64LOC_MAGIC "PK\6\7"
+#define EOCD64_MAGIC  "PK\6\6"
+#define CDENTRYSIZE         46u
+#define LENTRYSIZE          30
+#define MAXCOMLEN        65536
+#define MAXEXTLEN        65536
+#define EOCDLEN             22
+#define EOCD64LOCLEN	    20
+#define EOCD64LEN	    56
+#define CDBUFSIZE       (MAXCOMLEN+EOCDLEN+EOCD64LOCLEN)
+#define BUFSIZE		8192
+#define EFZIP64SIZE 28
+
+#define ZIP_CM_REPLACED_DEFAULT	(-2)
+
+#define ZIP_CM_IS_DEFAULT(x)	((x) == ZIP_CM_DEFAULT || (x) == ZIP_CM_REPLACED_DEFAULT)
+
+#define ZIP_EF_UTF_8_COMMENT	0x6375
+#define ZIP_EF_UTF_8_NAME	0x7075
+#define ZIP_EF_ZIP64		0x0001
+
+#define ZIP_EF_IS_INTERNAL(id)	((id) == ZIP_EF_UTF_8_COMMENT || (id) == ZIP_EF_UTF_8_NAME || (id) == ZIP_EF_ZIP64)
+
+/* according to unzip-6.0's zipinfo.c, this corresponds to a regular file with rw permissions for everyone */
+#define ZIP_EXT_ATTRIB_DEFAULT		(0100666u<<16)
+/* according to unzip-6.0's zipinfo.c, this corresponds to a directory with rwx permissions for everyone */
+#define ZIP_EXT_ATTRIB_DEFAULT_DIR	(0040777u<<16)
+
+
+#define ZIP_MAX(a, b)		((a) > (b) ? (a) : (b))
+#define ZIP_MIN(a, b)		((a) < (b) ? (a) : (b))
+
+/* This section contains API that won't materialize like this.  It's
+   placed in the internal section, pending cleanup. */
+
+/* flags for compression and encryption sources */
+
+#define ZIP_CODEC_DECODE	0 /* decompress/decrypt (encode flag not set) */
+#define ZIP_CODEC_ENCODE	1 /* compress/encrypt */
+
+
+typedef zip_source_t *(*zip_compression_implementation)(zip_t *, zip_source_t *, zip_int32_t, int);
+typedef zip_source_t *(*zip_encryption_implementation)(zip_t *, zip_source_t *, zip_uint16_t, int, const char *);
+
+zip_compression_implementation _zip_get_compression_implementation(zip_int32_t);
+zip_encryption_implementation _zip_get_encryption_implementation(zip_uint16_t);
+
+
+
+/* This API is not final yet, but we need it internally, so it's private for now. */
+
+const zip_uint8_t *zip_get_extra_field_by_id(zip_t *, int, int, zip_uint16_t, int, zip_uint16_t *);
+
+/* This section contains API that is of limited use until support for
+   user-supplied compression/encryption implementation is finished.
+   Thus we will keep it private for now. */
+
+typedef zip_int64_t (*zip_source_layered_callback)(zip_source_t *, void *, void *, zip_uint64_t, enum zip_source_cmd);
+zip_source_t *zip_source_crc(zip_t *, zip_source_t *, int);
+zip_source_t *zip_source_deflate(zip_t *, zip_source_t *, zip_int32_t, int);
+zip_source_t *zip_source_layered(zip_t *, zip_source_t *, zip_source_layered_callback, void *);
+zip_source_t *zip_source_layered_create(zip_source_t *src, zip_source_layered_callback cb, void *ud, zip_error_t *error);
+zip_source_t *zip_source_pkware(zip_t *, zip_source_t *, zip_uint16_t, int, const char *);
+int zip_source_remove(zip_source_t *);
+zip_int64_t zip_source_supports(zip_source_t *src);
+zip_source_t *zip_source_window(zip_t *, zip_source_t *, zip_uint64_t, zip_uint64_t);
+
+
+/* error source for layered sources */
+
+enum zip_les { ZIP_LES_NONE, ZIP_LES_UPPER, ZIP_LES_LOWER, ZIP_LES_INVAL };
+
+/* directory entry: general purpose bit flags */
+
+#define ZIP_GPBF_ENCRYPTED		0x0001	/* is encrypted */
+#define ZIP_GPBF_DATA_DESCRIPTOR	0x0008	/* crc/size after file data */
+#define ZIP_GPBF_STRONG_ENCRYPTION	0x0040  /* uses strong encryption */
+#define ZIP_GPBF_ENCODING_UTF_8		0x0800  /* file name encoding is UTF-8 */
+
+
+/* extra fields */
+#define ZIP_EF_LOCAL		ZIP_FL_LOCAL			/* include in local header */
+#define ZIP_EF_CENTRAL		ZIP_FL_CENTRAL			/* include in central directory */
+#define ZIP_EF_BOTH		(ZIP_EF_LOCAL|ZIP_EF_CENTRAL)	/* include in both */
+
+#define ZIP_FL_FORCE_ZIP64	1024  /* force zip64 extra field (_zip_dirent_write) */
+
+#define ZIP_FL_ENCODING_ALL	(ZIP_FL_ENC_GUESS|ZIP_FL_ENC_CP437|ZIP_FL_ENC_UTF_8)
+
+
+/* encoding type */
+enum zip_encoding_type {
+    ZIP_ENCODING_UNKNOWN,       /* not yet analyzed */
+    ZIP_ENCODING_ASCII,         /* plain ASCII */
+    ZIP_ENCODING_UTF8_KNOWN,    /* is UTF-8 */
+    ZIP_ENCODING_UTF8_GUESSED,  /* possibly UTF-8 */
+    ZIP_ENCODING_CP437,         /* Code Page 437 */
+    ZIP_ENCODING_ERROR          /* should be UTF-8 but isn't */
+};
+
+typedef enum zip_encoding_type zip_encoding_type_t;
+
+#ifndef ZIP_HASH_TABLE_SIZE
+#define ZIP_HASH_TABLE_SIZE 8192
+#endif
+
+struct zip_hash;
+
+typedef struct zip_cdir zip_cdir_t;
+typedef struct zip_dirent zip_dirent_t;
+typedef struct zip_entry zip_entry_t;
+typedef struct zip_extra_field zip_extra_field_t;
+typedef struct zip_string zip_string_t;
+typedef struct zip_buffer zip_buffer_t;
+typedef struct zip_hash zip_hash_t;
+
+/* zip archive, part of API */
+
+struct zip {
+    zip_source_t *src;                  /* data source for archive */
+    unsigned int open_flags;		/* flags passed to zip_open */
+    zip_error_t error;                  /* error information */
+
+    unsigned int flags;			/* archive global flags */
+    unsigned int ch_flags;		/* changed archive global flags */
+
+    char *default_password;		/* password used when no other supplied */
+
+    zip_string_t *comment_orig;         /* archive comment */
+    zip_string_t *comment_changes;	/* changed archive comment */
+    bool comment_changed;		/* whether archive comment was changed */
+
+    zip_uint64_t nentry;		/* number of entries */
+    zip_uint64_t nentry_alloc;		/* number of entries allocated */
+    zip_entry_t *entry;                 /* entries */
+
+    unsigned int nopen_source;		/* number of open sources using archive */
+    unsigned int nopen_source_alloc;	/* number of sources allocated */
+    zip_source_t **open_source;         /* open sources using archive */
+
+    zip_hash_t *names;			/* hash table for name lookup */
+    
+    char *tempdir;                      /* custom temp dir (needed e.g. for OS X sandboxing) */
+};
+
+/* file in zip archive, part of API */
+
+struct zip_file {
+    zip_t *za;		/* zip archive containing this file */
+    zip_error_t error;	/* error information */
+    bool eof;
+    zip_source_t *src;	/* data source */
+};
+
+/* zip archive directory entry (central or local) */
+
+#define ZIP_DIRENT_COMP_METHOD	0x0001u
+#define ZIP_DIRENT_FILENAME	0x0002u
+#define ZIP_DIRENT_COMMENT	0x0004u
+#define ZIP_DIRENT_EXTRA_FIELD	0x0008u
+#define ZIP_DIRENT_ATTRIBUTES	0x0010u
+#define ZIP_DIRENT_LAST_MOD	0x0020u
+#define ZIP_DIRENT_ALL		0xffffu
+
+struct zip_dirent {
+    zip_uint32_t changed;
+    bool local_extra_fields_read;	/*      whether we already read in local header extra fields */
+    bool cloned;                        /*      whether this instance is cloned, and thus shares non-changed strings */
+
+    zip_uint16_t version_madeby;	/* (c)  version of creator */
+    zip_uint16_t version_needed;	/* (cl) version needed to extract */
+    zip_uint16_t bitflags;		/* (cl) general purpose bit flag */
+    zip_int32_t comp_method;		/* (cl) compression method used (uint16 and ZIP_CM_DEFAULT (-1)) */
+    time_t last_mod;			/* (cl) time of last modification */
+    zip_uint32_t crc;			/* (cl) CRC-32 of uncompressed data */
+    zip_uint64_t comp_size;		/* (cl) size of compressed data */
+    zip_uint64_t uncomp_size;		/* (cl) size of uncompressed data */
+    zip_string_t *filename;		/* (cl) file name (NUL-terminated) */
+    zip_extra_field_t *extra_fields;	/* (cl) extra fields, parsed */
+    zip_string_t *comment;		/* (c)  file comment */
+    zip_uint32_t disk_number;		/* (c)  disk number start */
+    zip_uint16_t int_attrib;		/* (c)  internal file attributes */
+    zip_uint32_t ext_attrib;		/* (c)  external file attributes */
+    zip_uint64_t offset;		/* (c)  offset of local header */
+};
+
+/* zip archive central directory */
+
+struct zip_cdir {
+    zip_entry_t *entry;	 		/* directory entries */
+    zip_uint64_t nentry;		/* number of entries */
+    zip_uint64_t nentry_alloc;		/* number of entries allocated */
+
+    zip_uint64_t size;                  /* size of central directory */
+    zip_uint64_t offset;		/* offset of central directory in file */
+    zip_string_t *comment;		/* zip archive comment */
+};
+
+struct zip_extra_field {
+    zip_extra_field_t *next;
+    zip_flags_t flags;			/* in local/central header */
+    zip_uint16_t id;			/* header id */
+    zip_uint16_t size;			/* data size */
+    zip_uint8_t *data;
+};
+
+enum zip_source_write_state {
+    ZIP_SOURCE_WRITE_CLOSED,    /* write is not in progress */
+    ZIP_SOURCE_WRITE_OPEN,      /* write is in progress */
+    ZIP_SOURCE_WRITE_FAILED,    /* commit failed, only rollback allowed */
+    ZIP_SOURCE_WRITE_REMOVED    /* file was removed */
+};
+typedef enum zip_source_write_state zip_source_write_state_t;
+
+struct zip_source {
+    zip_source_t *src;
+    union {
+	zip_source_callback f;
+	zip_source_layered_callback l;
+    } cb;
+    void *ud;
+    zip_error_t error;
+    zip_int64_t supports;       /* supported commands */
+    unsigned int open_count;    /* number of times source was opened (directly or as lower layer) */
+    zip_source_write_state_t write_state;          /* whether source is open for writing */
+    bool source_closed;         /* set if source archive is closed */
+    zip_t *source_archive;      /* zip archive we're reading from, NULL if not from archive */
+    unsigned int refcount;
+};
+
+#define ZIP_SOURCE_IS_OPEN_READING(src) ((src)->open_count > 0)
+#define ZIP_SOURCE_IS_OPEN_WRITING(src) ((src)->write_state == ZIP_SOURCE_WRITE_OPEN)
+#define ZIP_SOURCE_IS_LAYERED(src)  ((src)->src != NULL)
+
+/* entry in zip archive directory */
+
+struct zip_entry {
+    zip_dirent_t *orig;
+    zip_dirent_t *changes;
+    zip_source_t *source;
+    bool deleted;
+};
+
+
+/* file or archive comment, or filename */
+
+struct zip_string {
+    zip_uint8_t *raw;			/* raw string */
+    zip_uint16_t length;		/* length of raw string */
+    enum zip_encoding_type encoding; 	/* autorecognized encoding */
+    zip_uint8_t *converted;     	/* autoconverted string */
+    zip_uint32_t converted_length;	/* length of converted */
+};
+
+
+/* bounds checked access to memory buffer */
+
+struct zip_buffer {
+    bool ok;
+    bool free_data;
+    
+    zip_uint8_t *data;
+    zip_uint64_t size;
+    zip_uint64_t offset;
+};
+
+/* which files to write in which order */
+
+struct zip_filelist {
+    zip_uint64_t idx;
+/* TODO    const char *name; */
+};
+
+typedef struct zip_filelist zip_filelist_t;
+
+
+extern const char * const _zip_err_str[];
+extern const int _zip_nerr_str;
+extern const int _zip_err_type[];
+
+
+#define ZIP_ENTRY_CHANGED(e, f)	((e)->changes && ((e)->changes->changed & (f)))
+
+#define ZIP_ENTRY_DATA_CHANGED(x)	((x)->source != NULL)
+
+#define ZIP_IS_RDONLY(za)	((za)->ch_flags & ZIP_AFL_RDONLY)
+
+
+zip_int64_t _zip_add_entry(zip_t *);
+
+zip_uint8_t *_zip_buffer_data(zip_buffer_t *buffer);
+bool _zip_buffer_eof(zip_buffer_t *buffer);
+void _zip_buffer_free(zip_buffer_t *buffer);
+zip_uint8_t *_zip_buffer_get(zip_buffer_t *buffer, zip_uint64_t length);
+zip_uint16_t _zip_buffer_get_16(zip_buffer_t *buffer);
+zip_uint32_t _zip_buffer_get_32(zip_buffer_t *buffer);
+zip_uint64_t _zip_buffer_get_64(zip_buffer_t *buffer);
+zip_uint8_t _zip_buffer_get_8(zip_buffer_t *buffer);
+zip_uint64_t _zip_buffer_left(zip_buffer_t *buffer);
+zip_buffer_t *_zip_buffer_new(zip_uint8_t *data, zip_uint64_t size);
+zip_buffer_t *_zip_buffer_new_from_source(zip_source_t *src, zip_uint64_t size, zip_uint8_t *buf, zip_error_t *error);
+zip_uint64_t _zip_buffer_offset(zip_buffer_t *buffer);
+bool _zip_buffer_ok(zip_buffer_t *buffer);
+int _zip_buffer_put(zip_buffer_t *buffer, const void *src, size_t length);
+int _zip_buffer_put_16(zip_buffer_t *buffer, zip_uint16_t i);
+int _zip_buffer_put_32(zip_buffer_t *buffer, zip_uint32_t i);
+int _zip_buffer_put_64(zip_buffer_t *buffer, zip_uint64_t i);
+int _zip_buffer_put_8(zip_buffer_t *buffer, zip_uint8_t i);
+int _zip_buffer_skip(zip_buffer_t *buffer, zip_uint64_t length);
+int _zip_buffer_set_offset(zip_buffer_t *buffer, zip_uint64_t offset);
+zip_uint64_t _zip_buffer_size(zip_buffer_t *buffer);
+
+int _zip_cdir_compute_crc(zip_t *, uLong *);
+void _zip_cdir_free(zip_cdir_t *);
+zip_cdir_t *_zip_cdir_new(zip_uint64_t, zip_error_t *);
+zip_int64_t _zip_cdir_write(zip_t *za, const zip_filelist_t *filelist, zip_uint64_t survivors);
+void _zip_deregister_source(zip_t *za, zip_source_t *src);
+
+zip_dirent_t *_zip_dirent_clone(const zip_dirent_t *);
+void _zip_dirent_free(zip_dirent_t *);
+void _zip_dirent_finalize(zip_dirent_t *);
+void _zip_dirent_init(zip_dirent_t *);
+bool _zip_dirent_needs_zip64(const zip_dirent_t *, zip_flags_t);
+zip_dirent_t *_zip_dirent_new(void);
+zip_int64_t _zip_dirent_read(zip_dirent_t *zde, zip_source_t *src, zip_buffer_t *buffer, bool local, zip_error_t *error);
+zip_int32_t _zip_dirent_size(zip_source_t *src, zip_uint16_t, zip_error_t *);
+int _zip_dirent_write(zip_t *za, zip_dirent_t *dirent, zip_flags_t flags);
+
+zip_extra_field_t *_zip_ef_clone(const zip_extra_field_t *, zip_error_t *);
+zip_extra_field_t *_zip_ef_delete_by_id(zip_extra_field_t *, zip_uint16_t, zip_uint16_t, zip_flags_t);
+void _zip_ef_free(zip_extra_field_t *);
+const zip_uint8_t *_zip_ef_get_by_id(const zip_extra_field_t *, zip_uint16_t *, zip_uint16_t, zip_uint16_t, zip_flags_t, zip_error_t *);
+zip_extra_field_t *_zip_ef_merge(zip_extra_field_t *, zip_extra_field_t *);
+zip_extra_field_t *_zip_ef_new(zip_uint16_t, zip_uint16_t, const zip_uint8_t *, zip_flags_t);
+bool _zip_ef_parse(const zip_uint8_t *, zip_uint16_t, zip_flags_t, zip_extra_field_t **, zip_error_t *);
+zip_extra_field_t *_zip_ef_remove_internal(zip_extra_field_t *);
+zip_uint16_t _zip_ef_size(const zip_extra_field_t *, zip_flags_t);
+int _zip_ef_write(zip_t *za, const zip_extra_field_t *ef, zip_flags_t flags);
+
+void _zip_entry_finalize(zip_entry_t *);
+void _zip_entry_init(zip_entry_t *);
+
+void _zip_error_clear(zip_error_t *);
+void _zip_error_get(const zip_error_t *, int *, int *);
+
+void _zip_error_copy(zip_error_t *dst, const zip_error_t *src);
+void _zip_error_set_from_source(zip_error_t *, zip_source_t *);
+
+const zip_uint8_t *_zip_extract_extra_field_by_id(zip_error_t *, zip_uint16_t, int, const zip_uint8_t *, zip_uint16_t, zip_uint16_t *);
+
+int _zip_file_extra_field_prepare_for_change(zip_t *, zip_uint64_t);
+int _zip_file_fillbuf(void *, size_t, zip_file_t *);
+zip_uint64_t _zip_file_get_offset(const zip_t *, zip_uint64_t, zip_error_t *);
+
+int _zip_filerange_crc(zip_source_t *src, zip_uint64_t offset, zip_uint64_t length, uLong *crcp, zip_error_t *error);
+
+zip_dirent_t *_zip_get_dirent(zip_t *, zip_uint64_t, zip_flags_t, zip_error_t *);
+
+enum zip_encoding_type _zip_guess_encoding(zip_string_t *, enum zip_encoding_type);
+zip_uint8_t *_zip_cp437_to_utf8(const zip_uint8_t * const, zip_uint32_t, zip_uint32_t *, zip_error_t *);
+
+bool _zip_hash_add(zip_hash_t *hash, const zip_uint8_t *name, zip_uint64_t index, zip_flags_t flags, zip_error_t *error);
+bool _zip_hash_delete(zip_hash_t *hash, const zip_uint8_t *key, zip_error_t *error);
+void _zip_hash_free(zip_hash_t *hash);
+zip_int64_t _zip_hash_lookup(zip_hash_t *hash, const zip_uint8_t *name, zip_flags_t flags, zip_error_t *error);
+zip_hash_t *_zip_hash_new(zip_uint16_t hash_size, zip_error_t *error);
+void _zip_hash_revert(zip_hash_t *hash);
+
+zip_t *_zip_open(zip_source_t *, unsigned int, zip_error_t *);
+
+int _zip_read(zip_source_t *src, zip_uint8_t *data, zip_uint64_t length, zip_error_t *error);
+int _zip_read_at_offset(zip_source_t *src, zip_uint64_t offset, unsigned char *b, size_t length, zip_error_t *error);
+zip_uint8_t *_zip_read_data(zip_buffer_t *buffer, zip_source_t *src, size_t length, bool nulp, zip_error_t *error);
+int _zip_read_local_ef(zip_t *, zip_uint64_t);
+zip_string_t *_zip_read_string(zip_buffer_t *buffer, zip_source_t *src, zip_uint16_t lenght, bool nulp, zip_error_t *error);
+int _zip_register_source(zip_t *za, zip_source_t *src);
+
+void _zip_set_open_error(int *zep, const zip_error_t *err, int ze);
+
+zip_int64_t _zip_source_call(zip_source_t *src, void *data, zip_uint64_t length, zip_source_cmd_t command);
+zip_source_t *_zip_source_file_or_p(const char *, FILE *, zip_uint64_t, zip_int64_t, const zip_stat_t *, zip_error_t *error);
+void _zip_source_invalidate(zip_source_t *src);
+zip_source_t *_zip_source_new(zip_error_t *error);
+int _zip_source_set_source_archive(zip_source_t *, zip_t *);
+zip_source_t *_zip_source_window_new(zip_source_t *src, zip_uint64_t start, zip_uint64_t length, zip_stat_t *st, zip_error_t *error);
+zip_source_t *_zip_source_zip_new(zip_t *, zip_t *, zip_uint64_t, zip_flags_t, zip_uint64_t, zip_uint64_t, const char *);
+
+int _zip_stat_merge(zip_stat_t *dst, const zip_stat_t *src, zip_error_t *error);
+int _zip_string_equal(const zip_string_t *, const zip_string_t *);
+void _zip_string_free(zip_string_t *);
+zip_uint32_t _zip_string_crc32(const zip_string_t *);
+const zip_uint8_t *_zip_string_get(zip_string_t *, zip_uint32_t *, zip_flags_t, zip_error_t *);
+zip_uint16_t _zip_string_length(const zip_string_t *);
+zip_string_t *_zip_string_new(const zip_uint8_t *, zip_uint16_t, zip_flags_t, zip_error_t *);
+int _zip_string_write(zip_t *za, const zip_string_t *string);
+
+int _zip_changed(const zip_t *, zip_uint64_t *);
+const char *_zip_get_name(zip_t *, zip_uint64_t, zip_flags_t, zip_error_t *);
+int _zip_local_header_read(zip_t *, int);
+void *_zip_memdup(const void *, size_t, zip_error_t *);
+zip_int64_t _zip_name_locate(zip_t *, const char *, zip_flags_t, zip_error_t *);
+zip_t *_zip_new(zip_error_t *);
+
+zip_int64_t _zip_file_replace(zip_t *, zip_uint64_t, const char *, zip_source_t *, zip_flags_t);
+int _zip_set_name(zip_t *, zip_uint64_t, const char *, zip_flags_t);
+void _zip_u2d_time(time_t, zip_uint16_t *, zip_uint16_t *);
+int _zip_unchange(zip_t *, zip_uint64_t, int);
+void _zip_unchange_data(zip_entry_t *);
+int _zip_write(zip_t *za, const void *data, zip_uint64_t length);
+
+#endif /* zipint.h */