lib/zip.h - third_party/libzip - Git at Google

 #ifndef _HAD_ZIP_H
 #define _HAD_ZIP_H

 /*
   $NiH: zip.h,v 1.31 2003/10/01 14:51:50 dillo Exp $

   zip.h -- exported declarations.
   Copyright (C) 1999, 2003 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 <sys/types.h>
 #include <stdio.h>
 #include <zlib.h>
 #include <time.h>

 enum zip_state { ZIP_ST_UNCHANGED, ZIP_ST_DELETED, ZIP_ST_REPLACED,
 		 ZIP_ST_ADDED, ZIP_ST_RENAMED };
 enum zip_cmd { ZIP_CMD_INIT, ZIP_CMD_READ, ZIP_CMD_META, ZIP_CMD_CLOSE };

 /* flags for zip_open */
 #define ZIP_CREATE           1
 #define ZIP_EXCL             2
 #define ZIP_CHECKCONS        4

 int zip_err; /* global variable for errors returned by the low-level
 		library */

 #define ZERR_OK               0  /* no error */
 #define ZERR_MULTIDISK        1  /* multi-disk zip-files not supported */
 #define ZERR_RENAME           2  /* replacing zipfile with tempfile failed */
 #define ZERR_CLOSE            3  /* closing zipfile failed */
 #define ZERR_SEEK             4  /* seek error */
 #define ZERR_READ             5  /* read error */
 #define ZERR_WRITE            6  /* write error */
 #define ZERR_CRC              7  /* CRC error */
 #define ZERR_ZIPCLOSED        8  /* containing zip file was closed */
 #define ZERR_NOENT            9  /* no such file */
 #define ZERR_EXISTS          10  /* file already exists */
 #define ZERR_OPEN            11  /* can't open file */
 #define ZERR_TMPOPEN         12  /* failure to create temporary file */
 #define ZERR_ZLIB            13  /* zlib error */
 #define ZERR_MEMORY          14  /* malloc failure */
 #define ZERR_CHANGED         15  /* entry has been changed */
 #define ZERR_COMPNOTSUPP     16  /* compression method not supported */
 #define ZERR_EOF             17  /* premature EOF */
 #define ZERR_INVAL           18  /* invalid argument */
 #define ZERR_NOZIP           19  /* not a zip file */
 #define ZERR_INTERNAL        20  /* internal error */
 #define ZERR_INCONS	     21  /* zip file inconsistent */

 extern char *zip_err_str[];

 /* zip file */

 typedef int (*zip_read_func)(void *state, void *data,
 			     int len, enum zip_cmd cmd);

 struct zip {
     char *zn;
     FILE *zp;
     unsigned short comlen, changes;
     unsigned int cd_size, cd_offset;
     char *com;
     int nentry, nentry_alloc;
     struct zip_entry *entry;
     int nfile, nfile_alloc;
     struct zip_file **file;
 };

 /* file in zip file */

 struct zip_file {
     struct zip *zf;
     char *name;
     int flags; /* -1: eof, >0: error */

     int method;
     /* position within zip file (fread/fwrite) */
     long fpos;
     /* no of bytes left to read */
     unsigned long bytes_left;
     /* no of bytes of compressed data left */
     unsigned long cbytes_left;
     /* crc so far */
     unsigned long crc, crc_orig;

     char *buffer;
     z_stream *zstr;
 };

 /* entry in zip file directory */

 struct zip_entry {
     struct zip_meta *meta;
     char *fn;
     char *fn_old;
     unsigned int file_fnlen;

     enum zip_state state;
     zip_read_func ch_func;
     void *ch_data;
     int ch_comp;		/* 1: data returned by ch_func is compressed */
     struct zip_meta *ch_meta;
 };

 struct zip_meta {
     unsigned short version_made, version_need, bitflags, comp_method,
 	disknrstart, int_attr;
     time_t last_mod;
     unsigned int crc, comp_size, uncomp_size, ext_attr, local_offset;
     unsigned short ef_len, lef_len, fc_len;
     unsigned char *ef, *lef, *fc;
 };


 int zip_add(struct zip *, const char *, struct zip_meta *,
 	    zip_read_func, void *, int);
 int zip_add_data(struct zip *, const char *, struct zip_meta *,
 		 const char *, int, int);
 int zip_add_file(struct zip *, const char *, struct zip_meta *,
 		 const char *, int, int);
 int zip_add_filep(struct zip *, const char *, struct zip_meta *,
 		 FILE *, int, int);
 int zip_add_zip(struct zip *, const char *, struct zip_meta *,
 		struct zip *, int, int, int);
 int zip_close(struct zip *);
 int zip_delete(struct zip *, int);
 int zip_fclose(struct zip_file *);
 struct zip_file *zip_fopen(struct zip *, const char *, int);
 struct zip_file *zip_fopen_index(struct zip *, int);
 int zip_fread(struct zip_file *, char *, int);
 void zip_free_meta(struct zip_meta *);
 struct zip_meta *zip_get_meta(struct zip *, int);
 const char *zip_get_name(struct zip *, int);
 int zip_name_locate(struct zip *, const char *, int);
 struct zip_meta *zip_new_meta(void);
 struct zip *zip_open(const char *, int);
 int zip_rename(struct zip *, int, const char *);
 int zip_replace(struct zip *, int, const char *, struct zip_meta *,
 		zip_read_func, void *, int);
 int zip_replace_data(struct zip *, int, const char *, struct zip_meta *,
 		     const char *, int, int);
 int zip_replace_file(struct zip *, int, const char *, struct zip_meta *,
 		     const char *, int, int);
 int zip_replace_filep(struct zip *, int, const char *, struct zip_meta *,
 		     FILE *, int, int);
 int zip_replace_zip(struct zip *, int, const char *, struct zip_meta *,
 		    struct zip *, int, int, int);
 int zip_unchange(struct zip *, int);
 int zip_unchange_all(struct zip *);

 #endif /* _HAD_ZIP_H */
	#ifndef _HAD_ZIP_H
	#define _HAD_ZIP_H

	/*
	$NiH: zip.h,v 1.31 2003/10/01 14:51:50 dillo Exp $

	zip.h -- exported declarations.
	Copyright (C) 1999, 2003 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 <sys/types.h>
	#include <stdio.h>
	#include <zlib.h>
	#include <time.h>

	enum zip_state { ZIP_ST_UNCHANGED, ZIP_ST_DELETED, ZIP_ST_REPLACED,
	ZIP_ST_ADDED, ZIP_ST_RENAMED };
	enum zip_cmd { ZIP_CMD_INIT, ZIP_CMD_READ, ZIP_CMD_META, ZIP_CMD_CLOSE };

	/* flags for zip_open */
	#define ZIP_CREATE 1
	#define ZIP_EXCL 2
	#define ZIP_CHECKCONS 4

	int zip_err; /* global variable for errors returned by the low-level
	library */

	#define ZERR_OK 0 /* no error */
	#define ZERR_MULTIDISK 1 /* multi-disk zip-files not supported */
	#define ZERR_RENAME 2 /* replacing zipfile with tempfile failed */
	#define ZERR_CLOSE 3 /* closing zipfile failed */
	#define ZERR_SEEK 4 /* seek error */
	#define ZERR_READ 5 /* read error */
	#define ZERR_WRITE 6 /* write error */
	#define ZERR_CRC 7 /* CRC error */
	#define ZERR_ZIPCLOSED 8 /* containing zip file was closed */
	#define ZERR_NOENT 9 /* no such file */
	#define ZERR_EXISTS 10 /* file already exists */
	#define ZERR_OPEN 11 /* can't open file */
	#define ZERR_TMPOPEN 12 /* failure to create temporary file */
	#define ZERR_ZLIB 13 /* zlib error */
	#define ZERR_MEMORY 14 /* malloc failure */
	#define ZERR_CHANGED 15 /* entry has been changed */
	#define ZERR_COMPNOTSUPP 16 /* compression method not supported */
	#define ZERR_EOF 17 /* premature EOF */
	#define ZERR_INVAL 18 /* invalid argument */
	#define ZERR_NOZIP 19 /* not a zip file */
	#define ZERR_INTERNAL 20 /* internal error */
	#define ZERR_INCONS 21 /* zip file inconsistent */

	extern char *zip_err_str[];

	/* zip file */

	typedef int (zip_read_func)(void state, void *data,
	int len, enum zip_cmd cmd);

	struct zip {
	char *zn;
	FILE *zp;
	unsigned short comlen, changes;
	unsigned int cd_size, cd_offset;
	char *com;
	int nentry, nentry_alloc;
	struct zip_entry *entry;
	int nfile, nfile_alloc;
	struct zip_file **file;
	};

	/* file in zip file */

	struct zip_file {
	struct zip *zf;
	char *name;
	int flags; /* -1: eof, >0: error */

	int method;
	/* position within zip file (fread/fwrite) */
	long fpos;
	/* no of bytes left to read */
	unsigned long bytes_left;
	/* no of bytes of compressed data left */
	unsigned long cbytes_left;
	/* crc so far */
	unsigned long crc, crc_orig;

	char *buffer;
	z_stream *zstr;
	};

	/* entry in zip file directory */

	struct zip_entry {
	struct zip_meta *meta;
	char *fn;
	char *fn_old;
	unsigned int file_fnlen;

	enum zip_state state;
	zip_read_func ch_func;
	void *ch_data;
	int ch_comp; /* 1: data returned by ch_func is compressed */
	struct zip_meta *ch_meta;
	};

	struct zip_meta {
	unsigned short version_made, version_need, bitflags, comp_method,
	disknrstart, int_attr;
	time_t last_mod;
	unsigned int crc, comp_size, uncomp_size, ext_attr, local_offset;
	unsigned short ef_len, lef_len, fc_len;
	unsigned char ef, lef, *fc;
	};



	int zip_add(struct zip , const char , struct zip_meta *,
	zip_read_func, void *, int);
	int zip_add_data(struct zip , const char , struct zip_meta *,
	const char *, int, int);
	int zip_add_file(struct zip , const char , struct zip_meta *,
	const char *, int, int);
	int zip_add_filep(struct zip , const char , struct zip_meta *,
	FILE *, int, int);
	int zip_add_zip(struct zip , const char , struct zip_meta *,
	struct zip *, int, int, int);
	int zip_close(struct zip *);
	int zip_delete(struct zip *, int);
	int zip_fclose(struct zip_file *);
	struct zip_file zip_fopen(struct zip , const char *, int);
	struct zip_file zip_fopen_index(struct zip , int);
	int zip_fread(struct zip_file , char , int);
	void zip_free_meta(struct zip_meta *);
	struct zip_meta zip_get_meta(struct zip , int);
	const char zip_get_name(struct zip , int);
	int zip_name_locate(struct zip , const char , int);
	struct zip_meta *zip_new_meta(void);
	struct zip zip_open(const char , int);
	int zip_rename(struct zip , int, const char );
	int zip_replace(struct zip , int, const char , struct zip_meta *,
	zip_read_func, void *, int);
	int zip_replace_data(struct zip , int, const char , struct zip_meta *,
	const char *, int, int);
	int zip_replace_file(struct zip , int, const char , struct zip_meta *,
	const char *, int, int);
	int zip_replace_filep(struct zip , int, const char , struct zip_meta *,
	FILE *, int, int);
	int zip_replace_zip(struct zip , int, const char , struct zip_meta *,
	struct zip *, int, int, int);
	int zip_unchange(struct zip *, int);
	int zip_unchange_all(struct zip *);

	#endif /* _HAD_ZIP_H */