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diff --git a/ext/zip/lib/zipint.h b/ext/zip/lib/zipint.h
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+#ifndef _HAD_ZIPINT_H
+#define _HAD_ZIPINT_H
+
+/*
+  $NiH: zipint.h,v 1.48 2006/04/24 14:04:19 dillo Exp $
+
+  zipint.h -- internal declarations.
+  Copyright (C) 1999, 2003, 2004, 2005, 2006 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <nih@giga.or.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.
+*/
+
+#include <zlib.h>
+
+#include "zip.h"
+#ifndef HAVE_FSEEKO
+#define fseeko(s, o, w)	(fseek((s), (long int)(o), (w)))
+#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 CDENTRYSIZE         46u
+#define LENTRYSIZE          30
+#define MAXCOMLEN        65536
+#define EOCDLEN             22
+#define CDBUFSIZE       (MAXCOMLEN+EOCDLEN)
+#define BUFSIZE		8192
+
+
+
+/* state of change of a file in zip archive */
+
+enum zip_state { ZIP_ST_UNCHANGED, ZIP_ST_DELETED, ZIP_ST_REPLACED,
+		 ZIP_ST_ADDED, ZIP_ST_RENAMED };
+
+/* constants for struct zip_file's member flags */
+
+#define ZIP_ZF_EOF	1 /* EOF reached */
+#define ZIP_ZF_DECOMP	2 /* decompress data */
+#define ZIP_ZF_CRC	4 /* compute and compare CRC */
+
+/* directory entry: general purpose bit flags */
+
+#define ZIP_GPBF_ENCRYPTED		0x0001	/* is encrypted */
+#define ZIP_GPBF_STRONG_ENCRYPTION	0x0040  /* uses strong encryption */
+#define ZIP_GPBF_USE_DATA_DESCRIPTOR    0x0008  /* uses crc and size from data header */
+
+/* error information */
+
+struct zip_error {
+    int zip_err;	/* libzip error code (ZIP_ER_*) */
+    int sys_err;	/* copy of errno (E*) or zlib error code */
+    char *str;		/* string representation or NULL */
+};
+
+/* zip archive, part of API */
+
+struct zip {
+    char *zn;			/* file name */
+    FILE *zp;			/* file */
+    struct zip_error error;	/* error information */
+
+    struct zip_cdir *cdir;	/* central directory */
+    char *ch_comment;		/* changed archive comment */
+    int ch_comment_len;		/* length of changed zip archive
+				 * comment, -1 if unchanged */
+    int nentry;			/* number of entries */
+    int nentry_alloc;		/* number of entries allocated */
+    struct zip_entry *entry;	/* entries */
+    int nfile;			/* number of opened files within archive */
+    int nfile_alloc;		/* number of files allocated */
+    struct zip_file **file;	/* opened files within archive */
+};
+
+/* file in zip archive, part of API */
+
+struct zip_file {
+    struct zip *za;		/* zip archive containing this file */
+    struct zip_error error;	/* error information */
+    int flags;			/* -1: eof, >0: error */
+
+    int method;			/* compression method */
+    long fpos;			/* position within zip file (fread/fwrite) */
+    unsigned long bytes_left;	/* number of bytes left to read */
+    unsigned long cbytes_left;  /* number of bytes of compressed data left */
+    
+    unsigned long crc;		/* CRC so far */
+    unsigned long crc_orig;	/* CRC recorded in archive */
+    
+    char *buffer;
+    z_stream *zstr;
+};
+
+/* zip archive directory entry (central or local) */
+
+struct zip_dirent {
+    unsigned short version_madeby;	/* (c)  version of creator */
+    unsigned short version_needed;	/* (cl) version needed to extract */
+    unsigned short bitflags;		/* (cl) general purpose bit flag */
+    unsigned short comp_method;		/* (cl) compression method used */
+    time_t last_mod;			/* (cl) time of last modification */
+    unsigned int crc;			/* (cl) CRC-32 of uncompressed data */
+    unsigned int comp_size;		/* (cl) size of commpressed data */
+    unsigned int uncomp_size;		/* (cl) size of uncommpressed data */
+    char *filename;			/* (cl) file name (NUL-terminated) */
+    unsigned short filename_len;	/* (cl) length of filename (w/o NUL) */
+    char *extrafield;			/* (cl) extra field */
+    unsigned short extrafield_len;	/* (cl) length of extra field */
+    char *comment;			/* (c)  file comment */
+    unsigned short comment_len;		/* (c)  length of file comment */
+    unsigned short disk_number;		/* (c)  disk number start */
+    unsigned short int_attrib;		/* (c)  internal file attributes */
+    unsigned int ext_attrib;		/* (c)  external file attributes */
+    unsigned int offset;		/* (c)  offset of local header  */
+};
+
+/* zip archive central directory */
+
+struct zip_cdir {
+    struct zip_dirent *entry;	/* directory entries */
+    int nentry;			/* number of entries */
+
+    unsigned int size;		/* size of central direcotry */
+    unsigned int offset;	/* offset of central directory in file */
+    char *comment;		/* zip archive comment */
+    unsigned short comment_len;	/* length of zip archive comment */
+};
+
+
+
+struct zip_source {
+    zip_source_callback f;
+    void *ud;
+};
+
+/* entry in zip archive directory */
+
+struct zip_entry {
+    enum zip_state state;
+    struct zip_source *source;
+    char *ch_filename;
+    char *ch_comment;
+    int ch_comment_len;
+};
+
+
+
+extern const char * const _zip_err_str[];
+extern const int _zip_nerr_str;
+extern const int _zip_err_type[];
+
+
+
+#define ZIP_ENTRY_DATA_CHANGED(x)	\
+			((x)->state == ZIP_ST_REPLACED  \
+			 || (x)->state == ZIP_ST_ADDED)
+
+
+
+void _zip_cdir_free(struct zip_cdir *);
+struct zip_cdir *_zip_cdir_new(int, struct zip_error *);
+int _zip_cdir_write(struct zip_cdir *, FILE *, struct zip_error *);
+
+void _zip_dirent_finalize(struct zip_dirent *);
+void _zip_dirent_init(struct zip_dirent *);
+int _zip_dirent_read(struct zip_dirent *, FILE *,
+		     unsigned char **, unsigned int, int, struct zip_error *);
+int _zip_dirent_write(struct zip_dirent *, FILE *, int, struct zip_error *);
+
+void _zip_entry_free(struct zip_entry *);
+void _zip_entry_init(struct zip *, int);
+struct zip_entry *_zip_entry_new(struct zip *);
+
+void _zip_error_copy(struct zip_error *, struct zip_error *);
+void _zip_error_fini(struct zip_error *);
+void _zip_error_get(struct zip_error *, int *, int *);
+void _zip_error_init(struct zip_error *);
+void _zip_error_set(struct zip_error *, int, int);
+const char *_zip_error_strerror(struct zip_error *);
+
+int _zip_file_fillbuf(void *, size_t, struct zip_file *);
+unsigned int _zip_file_get_offset(struct zip *, int);
+
+void _zip_free(struct zip *);
+const char *_zip_get_name(struct zip *, int, int, struct zip_error *);
+int _zip_local_header_read(struct zip *, int);
+void *_zip_memdup(const void *, size_t, struct zip_error *);
+int _zip_name_locate(struct zip *, const char *, int, struct zip_error *);
+struct zip *_zip_new(struct zip_error *);
+unsigned short _zip_read2(unsigned char **);
+unsigned int _zip_read4(unsigned char **);
+int _zip_replace(struct zip *, int, const char *, struct zip_source *);
+int _zip_set_name(struct zip *, int, const char *);
+int _zip_unchange(struct zip *, int, int);
+void _zip_unchange_data(struct zip_entry *);
+
+#endif /* zipint.h */