/*

 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#ifndef _MANIFEST_INFO_H

#define _MANIFEST_INFO_H

#include <sys/types.h>

/*

 * Zip file header signatures

 */

#define SIGSIZ 4                    /* size of all header signatures */

#define LOCSIG 0x04034b50L          /* "PK\003\004" */

#define EXTSIG 0x08074b50L          /* "PK\007\008" */

#define CENSIG 0x02014b50L          /* "PK\001\002" */

#define ENDSIG 0x06054b50L          /* "PK\005\006" */

/*

 * Header sizes including signatures

 */

#define LOCHDR 30

#define EXTHDR 16

#define CENHDR 46

#define ENDHDR 22

/*

 * Header field access macros

 */

#define CH(b, n) (((unsigned char *)(b))[n])

#define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8))

#define LG(b, n) (SH(b, n) | (SH(b, n+2) << 16))

#define GETSIG(b) LG(b, 0)

/*

 * Macros for getting local file (LOC) header fields

 */

#define LOCVER(b) SH(b, 4)          /* version needed to extract */

#define LOCFLG(b) SH(b, 6)          /* general purpose bit flags */

#define LOCHOW(b) SH(b, 8)          /* compression method */

#define LOCTIM(b) LG(b, 10)         /* modification time */

#define LOCCRC(b) LG(b, 14)         /* crc of uncompressed data */

#define LOCSIZ(b) LG(b, 18)         /* compressed data size */

#define LOCLEN(b) LG(b, 22)         /* uncompressed data size */

#define LOCNAM(b) SH(b, 26)         /* filename length */

#define LOCEXT(b) SH(b, 28)         /* extra field length */

/*

 * Macros for getting extra local (EXT) header fields

 */

#define EXTCRC(b) LG(b, 4)          /* crc of uncompressed data */

#define EXTSIZ(b) LG(b, 8)          /* compressed size */

#define EXTLEN(b) LG(b, 12)         /* uncompressed size */

/*

 * Macros for getting central directory header (CEN) fields

 */

#define CENVEM(b) SH(b, 4)          /* version made by */

#define CENVER(b) SH(b, 6)          /* version needed to extract */

#define CENFLG(b) SH(b, 8)          /* general purpose bit flags */

#define CENHOW(b) SH(b, 10)         /* compression method */

#define CENTIM(b) LG(b, 12)         /* modification time */

#define CENCRC(b) LG(b, 16)         /* crc of uncompressed data */

#define CENSIZ(b) LG(b, 20)         /* compressed size */

#define CENLEN(b) LG(b, 24)         /* uncompressed size */

#define CENNAM(b) SH(b, 28)         /* length of filename */

#define CENEXT(b) SH(b, 30)         /* length of extra field */

#define CENCOM(b) SH(b, 32)         /* file comment length */

#define CENDSK(b) SH(b, 34)         /* disk number start */

#define CENATT(b) SH(b, 36)         /* internal file attributes */

#define CENATX(b) LG(b, 38)         /* external file attributes */

#define CENOFF(b) LG(b, 42)         /* offset of local header */

/*

 * Macros for getting end of central directory header (END) fields

 */

#define ENDSUB(b) SH(b, 8)          /* number of entries on this disk */

#define ENDTOT(b) SH(b, 10)         /* total number of entries */

#define ENDSIZ(b) LG(b, 12)         /* central directory size */

#define ENDOFF(b) LG(b, 16)         /* central directory offset */

#define ENDCOM(b) SH(b, 20)         /* size of zip file comment */

/*

 * A comment of maximum length of 64kb can follow the END record. This

 * is the furthest the END record can be from the end of the file.

 */

#define END_MAXLEN      (0xFFFF + ENDHDR)

/*

 * Supported compression methods.

 */

#define STORED      0

#define DEFLATED    8

/*

 * Information from the CEN entry to inflate a file.

 */

typedef struct zentry { /* Zip file entry */

    size_t      isize;  /* size of inflated data */

    size_t      csize;  /* size of compressed data (zero if uncompressed) */

    off_t       offset; /* position of compressed data */

    int         how;    /* compression method (if any) */

} zentry;

/*

 * Information returned from the Manifest file by the ParseManifest() routine.

 * Certainly (much) more could be returned, but this is the information

 * currently of interest to the C based Java utilities (particularly the

 * Java launcher).

 */

typedef struct manifest_info {  /* Interesting fields from the Manifest */

    char        *manifest_version;      /* Manifest-Version string */

    char        *main_class;            /* Main-Class entry */

    char        *jre_version;           /* Appropriate J2SE release spec */

    char        jre_restrict_search;    /* Restricted JRE search */

    char        *splashscreen_image_file_name; /* splashscreen image file */

} manifest_info;

/*

 * Attribute closure to provide to manifest_iterate.

 */

typedef void (*attribute_closure)(const char *name, const char *value,

        void *user_data);

/*

 * Function prototypes.

 */

int     JLI_ParseManifest(char *jarfile, manifest_info *info);

void    *JLI_JarUnpackFile(const char *jarfile, const char *filename,

                int *size);

void    JLI_FreeManifest(void);

int     JLI_ManifestIterate(const char *jarfile, attribute_closure ac,

                void *user_data);

#endif  /* _MANIFEST_INFO_H */