text: /*
   * Copyright (c) 2003, 2012, 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" */
  
  #define ZIP64_ENDSIG 0x06064b50L    /* "PK\006\006" */
  #define ZIP64_LOCSIG 0x07064b50L    /* "PK\006\007" */
  /*
   * Header sizes including signatures
   */
  #define LOCHDR 30
  #define EXTHDR 16
  #define CENHDR 46
  #define ENDHDR 22
  
  #define ZIP64_ENDHDR 56       // ZIP64 end header size
  #define ZIP64_LOCHDR 20       // ZIP64 end loc header size
  #define ZIP64_EXTHDR 24       // EXT header size
  #define ZIP64_EXTID   1       // Extra field Zip64 header ID
  
  #define ZIP64_MAGICVAL 0xffffffffLL
  #define ZIP64_MAGICCOUNT 0xffff
  
  /*
   * 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)) &0xffffffffUL)
  #define LL(b, n) (((jlong)LG(b, n)) | (((jlong)LG(b, n+4)) << 32))
  #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 */
  
  /*
   * Macros for getting Zip64 end of central directory header fields
   */
  #define ZIP64_ENDLEN(b) LL(b, 4)      /* size of zip64 end of central dir */
  #define ZIP64_ENDVEM(b) SH(b, 12)     /* version made by */
  #define ZIP64_ENDVER(b) SH(b, 14)     /* version needed to extract */
  #define ZIP64_ENDNMD(b) LG(b, 16)     /* number of this disk */
  #define ZIP64_ENDDSK(b) LG(b, 20)     /* disk number of start */
  #define ZIP64_ENDTOD(b) LL(b, 24)     /* total number of entries on this disk */
  #define ZIP64_ENDTOT(b) LL(b, 32)     /* total number of entries */
  #define ZIP64_ENDSIZ(b) LL(b, 40)     /* central directory size in bytes */
  #define ZIP64_ENDOFF(b) LL(b, 48)     /* offset of first CEN header */
  
  /*
   * Macros for getting Zip64 end of central directory locator fields
   */
  #define ZIP64_LOCDSK(b) LG(b, 4)      /* disk number start */
  #define ZIP64_LOCOFF(b) LL(b, 8)      /* offset of zip64 end */
  #define ZIP64_LOCTOT(b) LG(b, 16)     /* total number of disks */
  
  /*
   * 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) */
      jlong       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 */
  