text: /* zip.c -- IO on .zip files using zlib
     Version 1.1, February 14h, 2010
     part of the MiniZip project
  
     Copyright (C) 1998-2010 Gilles Vollant
       http://www.winimage.com/zLibDll/minizip.html
     Modifications for Zip64 support
       Copyright (C) 2009-2010 Mathias Svensson
       http://result42.com
     Modifications for AES, PKWARE disk spanning
       Copyright (C) 2010-2014 Nathan Moinvaziri
  
     This program is distributed under the terms of the same license as zlib.
     See the accompanying LICENSE file for the full text of the license.
  */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <time.h>
  #include <zlib.h>
  #include "m_zip.h"
  
  #ifdef STDC
  #  include <stddef.h>
  #  include <string.h>
  #  include <stdlib.h>
  #endif
  #ifdef NO_ERRNO_H
      extern int errno;
  #else
  #   include <errno.h>
  #endif
  
  #ifdef HAVE_AES
  #  define AES_METHOD          (99)
  #  define AES_PWVERIFYSIZE    (2)
  #  define AES_AUTHCODESIZE    (10)
  #  define AES_MAXSALTLENGTH   (16)
  #  define AES_VERSION         (0x0001)
  #  define AES_ENCRYPTIONMODE  (0x03)
  
  #  include "aes/aes.h"
  #  include "aes/fileenc.h"
  #  include "aes/prng.h"
  #  include "aes/entropy.h"
  #endif
  
  #ifndef NOCRYPT
  #  define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
  #  include "crypt.h"
  #endif
  
  #ifndef local
  #  define local static
  #endif
  /* compile with -Dlocal if your debugger can't find static symbols */
  
  #define SIZEDATA_INDATABLOCK        (4096-(4*4))
  
  #define DISKHEADERMAGIC             (0x08074b50)
  #define LOCALHEADERMAGIC            (0x04034b50)
  #define CENTRALHEADERMAGIC          (0x02014b50)
  #define ENDHEADERMAGIC              (0x06054b50)
  #define ZIP64ENDHEADERMAGIC         (0x06064b50)
  #define ZIP64ENDLOCHEADERMAGIC      (0x07064b50)
  
  #define FLAG_LOCALHEADER_OFFSET     (0x06)
  #define CRC_LOCALHEADER_OFFSET      (0x0e)
  
  #define SIZECENTRALHEADER           (0x2e) /* 46 */
  #define SIZECENTRALHEADERLOCATOR    (0x14) /* 20 */
  #define SIZECENTRALDIRITEM          (0x2e)
  #define SIZEZIPLOCALHEADER          (0x1e)
  
  #ifndef BUFREADCOMMENT
  #  define BUFREADCOMMENT            (0x400)
  #endif
  #ifndef VERSIONMADEBY
  #  define VERSIONMADEBY             (0x0) /* platform dependent */
  #endif
  
  #ifndef Z_BUFSIZE
  #  define Z_BUFSIZE (64*1024)
  #endif
  #ifndef Z_MAXFILENAMEINZIP
  #  define Z_MAXFILENAMEINZIP (256)
  #endif
  
  #ifndef ALLOC
  #  define ALLOC(size) (malloc(size))
  #endif
  #ifndef TRYFREE
  #  define TRYFREE(p) {if (p) free(p);}
  #endif
  
  /* NOT sure that this work on ALL platform */
  #define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32))
  
  #ifndef DEF_MEM_LEVEL
  #  if MAX_MEM_LEVEL >= 8
  #    define DEF_MEM_LEVEL 8
  #  else
  #    define DEF_MEM_LEVEL  MAX_MEM_LEVEL
  #  endif
  #endif
  
  const char zip_copyright[] = " zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
  
  typedef struct linkedlist_datablock_internal_s
  {
      struct linkedlist_datablock_internal_s* next_datablock;
      uLong  avail_in_this_block;
      uLong  filled_in_this_block;
      uLong  unused; /* for future use and alignment */
      unsigned char data[SIZEDATA_INDATABLOCK];
  } linkedlist_datablock_internal;
  
  typedef struct linkedlist_data_s
  {
      linkedlist_datablock_internal* first_block;
      linkedlist_datablock_internal* last_block;
  } linkedlist_data;
  
  typedef struct
  {
      z_stream stream;                /* zLib stream structure for inflate */
  #ifdef HAVE_BZIP2
      bz_stream bstream;              /* bzLib stream structure for bziped */
  #endif
  #ifdef HAVE_AES
      fcrypt_ctx aes_ctx;
      prng_ctx aes_rng[1];
  #endif
      int  stream_initialised;        /* 1 is stream is initialized */
      uInt pos_in_buffered_data;      /* last written byte in buffered_data */
  
      ZPOS64_T pos_local_header;      /* offset of the local header of the file currently writing */
      char* central_header;           /* central header data for the current file */
      uLong size_centralextra;
      uLong size_centralheader;       /* size of the central header for cur file */
      uLong size_centralextrafree;    /* Extra bytes allocated to the central header but that are not used */
      uLong size_comment;
      uLong flag;                     /* flag of the file currently writing */
  
      int  method;                    /* compression method written to file.*/
      int  compression_method;        /* compression method to use */
      int  raw;                       /* 1 for directly writing raw data */
      Byte buffered_data[Z_BUFSIZE];  /* buffer contain compressed data to be writ*/
      uLong dosDate;
      uLong crc32;
      int  zip64;                     /* Add ZIP64 extended information in the extra field */
      uLong number_disk;              /* number of current disk used for spanning ZIP */
      ZPOS64_T pos_zip64extrainfo;
      ZPOS64_T total_compressed;
      ZPOS64_T total_uncompressed;
  #ifndef NOCRYPT
      unsigned long keys[3];          /* keys defining the pseudo-random sequence */
      const unsigned long* pcrc_32_tab;
      int crypt_header_size;
  #endif
  } curfile64_info;
  
  typedef struct
  {
      zlib_filefunc64_32_def z_filefunc;
      voidpf filestream;              /* io structure of the zipfile */
      voidpf filestream_with_CD;      /* io structure of the zipfile with the central dir */
      linkedlist_data central_dir;    /* datablock with central dir in construction*/
      int in_opened_file_inzip;       /* 1 if a file in the zip is currently writ.*/
      int append;                     /* append mode */
      curfile64_info ci;              /* info on the file currently writing */
  
      ZPOS64_T begin_pos;             /* position of the beginning of the zipfile */
      ZPOS64_T add_position_when_writting_offset;
      ZPOS64_T number_entry;
      ZPOS64_T disk_size;             /* size of each disk */
      uLong number_disk;              /* number of the current disk, used for spanning ZIP */
      uLong number_disk_with_CD;      /* number the the disk with central dir, used for spanning ZIP */
  #ifndef NO_ADDFILEINEXISTINGZIP
      char *globalcomment;
  #endif
  } zip64_internal;
  
  /* Allocate a new data block */
  local linkedlist_datablock_internal* allocate_new_datablock OF((void));
  local linkedlist_datablock_internal* allocate_new_datablock()
  {
      linkedlist_datablock_internal* ldi;
  
      ldi = (linkedlist_datablock_internal*)ALLOC(sizeof(linkedlist_datablock_internal));
  
      if (ldi != NULL)
      {
          ldi->next_datablock = NULL;
          ldi->filled_in_this_block = 0;
          ldi->avail_in_this_block = SIZEDATA_INDATABLOCK;
      }
      return ldi;
  }
  
  /* Free data block in linked list */
  local void free_datablock OF((linkedlist_datablock_internal* ldi));
  local void free_datablock(linkedlist_datablock_internal* ldi)
  {
      while (ldi != NULL)
      {
          linkedlist_datablock_internal* ldinext = ldi->next_datablock;
          TRYFREE(ldi);
          ldi = ldinext;
      }
  }
  
  /* Initialize linked list */
  local void init_linkedlist OF((linkedlist_data* ll));
  local void init_linkedlist(linkedlist_data* ll)
  {
      ll->first_block = ll->last_block = NULL;
  }
  
  /* Free entire linked list and all data blocks */
  local void free_linkedlist OF((linkedlist_data* ll));
  local void free_linkedlist(linkedlist_data* ll)
  {
      free_datablock(ll->first_block);
      ll->first_block = ll->last_block = NULL;
  }
  
  /* Add data to linked list data block */
  local int add_data_in_datablock OF((linkedlist_data* ll, const void* buf, uLong len));
  local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len)
  {
      linkedlist_datablock_internal* ldi;
      const unsigned char* from_copy;
  
      if (ll == NULL)
          return ZIP_INTERNALERROR;
  
      if (ll->last_block == NULL)
      {
          ll->first_block = ll->last_block = allocate_new_datablock();
          if (ll->first_block == NULL)
              return ZIP_INTERNALERROR;
      }
  
      ldi = ll->last_block;
      from_copy = (unsigned char*)buf;
  
      while (len > 0)
      {
          uInt copy_this;
          uInt i;
          unsigned char* to_copy;
  
          if (ldi->avail_in_this_block == 0)
          {
              ldi->next_datablock = allocate_new_datablock();
              if (ldi->next_datablock == NULL)
                  return ZIP_INTERNALERROR;
              ldi = ldi->next_datablock ;
              ll->last_block = ldi;
          }
  
          if (ldi->avail_in_this_block < len)
              copy_this = (uInt)ldi->avail_in_this_block;
          else
              copy_this = (uInt)len;
  
          to_copy = &(ldi->data[ldi->filled_in_this_block]);
  
          for (i = 0; i < copy_this; i++)
              *(to_copy+i) = *(from_copy+i);
  
          ldi->filled_in_this_block += copy_this;
          ldi->avail_in_this_block -= copy_this;
          from_copy += copy_this;
          len -= copy_this;
      }
      return ZIP_OK;
  }
  
  local uLong zip64local_TmzDateToDosDate OF((const tm_zip* ptm));
  local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm)
  {
      uLong year;
  #define zip64local_in_range(min, max, value) ((min) <= (value) && (value) <= (max))
      /* Years supported:
         * [00, 79] (assumed to be between 2000 and 2079)
         * [80, 207] (assumed to be between 1980 and 2107, typical output of old
           software that does 'year-1900' to get a double digit year)
         * [1980, 2107]
         Due to the date format limitations, only years between 1980 and 2107 can be stored.
      */
      if (!(zip64local_in_range(1980, 2107, ptm->tm_year) || zip64local_in_range(0, 207, ptm->tm_year)) ||
          !zip64local_in_range(0, 11, ptm->tm_mon) ||
          !zip64local_in_range(1, 31, ptm->tm_mday) ||
          !zip64local_in_range(0, 23, ptm->tm_hour) ||
          !zip64local_in_range(0, 59, ptm->tm_min) ||
          !zip64local_in_range(0, 59, ptm->tm_sec))
        return 0;
  #undef zip64local_in_range
  
      year = (uLong)ptm->tm_year;
      if (year >= 1980) /* range [1980, 2107] */
          year -= 1980;
      else if (year >= 80) /* range [80, 99] */
          year -= 80;
      else /* range [00, 79] */
          year += 20;
  
      return (uLong)(((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
          ((ptm->tm_sec / 2) + (32 * ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
  }
  
  /* Inputs a long in LSB order to the given file: nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T) */
  local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream,
      ZPOS64_T x, int nbByte));
  local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream,
      ZPOS64_T x, int nbByte)
  {
      unsigned char buf[8];
      int n;
      for (n = 0; n < nbByte; n++)
      {
          buf[n] = (unsigned char)(x & 0xff);
          x >>= 8;
      }
      if (x != 0)
      {
          /* Data overflow - hack for ZIP64 (X Roche) */
          for (n = 0; n < nbByte; n++)
          {
              buf[n] = 0xff;
          }
      }
  
      if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
          return ZIP_ERRNO;
  
      return ZIP_OK;
  }
  
  local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte));
  local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte)
  {
      unsigned char* buf =(unsigned char*)dest;
      int n;
      for (n = 0; n < nbByte; n++) {
          buf[n] = (unsigned char)(x & 0xff);
          x >>= 8;
      }
  
      if (x != 0)
      {
         /* data overflow - hack for ZIP64 */
         for (n = 0; n < nbByte; n++)
         {
            buf[n] = 0xff;
         }
      }
  }
  
  local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi));
  local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi)
  {
      unsigned char c;
      int err = (int)ZREAD64(*pzlib_filefunc_def, filestream, &c,1);
      if (err == 1)
      {
          *pi = (int)c;
          return ZIP_OK;
      }
      if (ZERROR64(*pzlib_filefunc_def, filestream))
          return ZIP_ERRNO;
      return ZIP_EOF;
  }
  
  local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
  local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
  {
      uLong x;
      int i = 0;
      int err;
  
      err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x = (uLong)i;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((uLong)i) << 8;
  
      if (err == ZIP_OK)
          *pX = x;
      else
          *pX = 0;
      return err;
  }
  
  local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
  local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
  {
      uLong x;
      int i = 0;
      int err;
  
      err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x = (uLong)i;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((uLong)i) << 8;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((uLong)i) << 16;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((uLong)i) << 24;
  
      if (err == ZIP_OK)
          *pX = x;
      else
          *pX = 0;
      return err;
  }
  
  local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX));
  local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)
  {
      ZPOS64_T x;
      int i = 0;
      int err;
  
      err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x = (ZPOS64_T)i;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 8;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 16;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 24;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 32;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 40;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 48;
      if (err == ZIP_OK)
          err = zip64local_getByte(pzlib_filefunc_def, filestream, &i);
      x += ((ZPOS64_T)i) << 56;
  
      if (err == ZIP_OK)
          *pX = x;
      else
          *pX = 0;
  
      return err;
  }
  
  /* Gets the amount of bytes left to write to the current disk for spanning archives */
  local int zipGetDiskSizeAvailable OF((zipFile file, ZPOS64_T *size_available));
  local int zipGetDiskSizeAvailable(zipFile file, ZPOS64_T *size_available)
  {
      zip64_internal* zi;
      ZPOS64_T current_disk_size;
  
      zi = (zip64_internal*)file;
      ZSEEK64(zi->z_filefunc, zi->filestream, 0, ZLIB_FILEFUNC_SEEK_END);
      current_disk_size = ZTELL64(zi->z_filefunc, zi->filestream);
      *size_available = zi->disk_size - current_disk_size;
      return ZIP_OK;
  }
  
  /* Goes to a specific disk number for spanning archives */
  local int zipGoToSpecificDisk OF((zipFile file, int number_disk, int open_existing));
  local int zipGoToSpecificDisk(zipFile file, int number_disk, int open_existing)
  {
      zip64_internal* zi;
      int err = ZIP_OK;
  
      zi = (zip64_internal*)file;
      if (zi->disk_size == 0)
          return err;
  
      if ((zi->filestream != NULL) && (zi->filestream != zi->filestream_with_CD))
          ZCLOSE64(zi->z_filefunc, zi->filestream);
  
      zi->filestream = ZOPENDISK64(zi->z_filefunc, zi->filestream_with_CD, number_disk, (open_existing == 1) ?
              (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING) :
              (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE));
  
      if (zi->filestream == NULL)
          err = ZIP_ERRNO;
  
      return err;
  }
  
  /* Goes to the first disk in a spanned archive */
  local int zipGoToFirstDisk OF((zipFile file));
  local int zipGoToFirstDisk(zipFile file)
  {
      zip64_internal* zi;
      int number_disk_next;
      int err = ZIP_OK;
  
      zi = (zip64_internal*)file;
  
      if (zi->disk_size == 0)
          return err;
      number_disk_next = 0;
      if (zi->number_disk_with_CD > 0)
          number_disk_next = (int)zi->number_disk_with_CD - 1;
      err = zipGoToSpecificDisk(file, number_disk_next, (zi->append == APPEND_STATUS_ADDINZIP));
      if ((err == ZIP_ERRNO) && (zi->append == APPEND_STATUS_ADDINZIP))
          err = zipGoToSpecificDisk(file, number_disk_next, 0);
      if (err == ZIP_OK)
          zi->number_disk = number_disk_next;
      ZSEEK64(zi->z_filefunc, zi->filestream, 0, ZLIB_FILEFUNC_SEEK_END);
      return err;
  }
  
  /* Goes to the next disk in a spanned archive */
  local int zipGoToNextDisk OF((zipFile file));
  local int zipGoToNextDisk(zipFile file)
  {
      zip64_internal* zi;
      ZPOS64_T size_available_in_disk;
      int err = ZIP_OK;
      int number_disk_next;
  
      zi = (zip64_internal*)file;
  
      if (zi->disk_size == 0)
          return err;
  
      number_disk_next = (int)zi->number_disk + 1;
  
      do
      {
          err = zipGoToSpecificDisk(file, number_disk_next, (zi->append == APPEND_STATUS_ADDINZIP));
          if ((err == ZIP_ERRNO) && (zi->append == APPEND_STATUS_ADDINZIP))
              err = zipGoToSpecificDisk(file, number_disk_next, 0);
          if (err != ZIP_OK)
              break;
          err = zipGetDiskSizeAvailable(file, &size_available_in_disk);
          if (err != ZIP_OK)
              break;
          zi->number_disk = number_disk_next;
          zi->number_disk_with_CD = zi->number_disk + 1;
  
          number_disk_next += 1;
      }
      while (size_available_in_disk <= 0);
  
      return err;
  }
  
  /* Locate the Central directory of a zipfile (at the end, just before the global comment) */
  local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
  local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
  {
      unsigned char* buf;
      ZPOS64_T file_size;
      ZPOS64_T back_read = 4;
      ZPOS64_T max_back=0xffff; /* maximum size of global comment */
      ZPOS64_T pos_found=0;
      uLong read_size;
      ZPOS64_T read_pos;
      int i;
  
      buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
      if (buf == NULL)
          return 0;
  
      if (ZSEEK64(*pzlib_filefunc_def, filestream, 0, ZLIB_FILEFUNC_SEEK_END) != 0)
      {
          TRYFREE(buf);
          return 0;
      }
  
      file_size = ZTELL64(*pzlib_filefunc_def, filestream);
  
      if (max_back > file_size)
          max_back = file_size;
  
      while (back_read < max_back)
      {
          if (back_read + BUFREADCOMMENT > max_back)
              back_read = max_back;
          else
              back_read += BUFREADCOMMENT;
  
          read_pos = file_size-back_read;
          read_size = ((BUFREADCOMMENT+4) < (file_size-read_pos)) ?
                       (BUFREADCOMMENT+4) : (uLong)(file_size-read_pos);
  
          if (ZSEEK64(*pzlib_filefunc_def, filestream, read_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
              break;
          if (ZREAD64(*pzlib_filefunc_def, filestream, buf, read_size) != read_size)
              break;
  
          for (i = (int)read_size-3; (i--) > 0;)
              if ((*(buf+i)) == (ENDHEADERMAGIC & 0xff) &&
                  (*(buf+i+1)) == (ENDHEADERMAGIC >> 8 & 0xff) &&
                  (*(buf+i+2)) == (ENDHEADERMAGIC >> 16 & 0xff) &&
                  (*(buf+i+3)) == (ENDHEADERMAGIC >> 24 & 0xff))
              {
                  pos_found = read_pos+i;
                  break;
              }
  
          if (pos_found != 0)
              break;
      }
      TRYFREE(buf);
      return pos_found;
  }
  
  /* Locate the Central directory 64 of a zipfile (at the end, just before the global comment) */
  local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream,
      const ZPOS64_T endcentraloffset));
  local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream,
      const ZPOS64_T endcentraloffset)
  {
      ZPOS64_T offset;
      uLong uL;
  
      /* Zip64 end of central directory locator */
      if (ZSEEK64(*pzlib_filefunc_def, filestream, endcentraloffset - SIZECENTRALHEADERLOCATOR, ZLIB_FILEFUNC_SEEK_SET) != 0)
          return 0;
  
      /* Read locator signature */
      if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK)
          return 0;
      if (uL != ZIP64ENDLOCHEADERMAGIC)
          return 0;
      /* Number of the disk with the start of the zip64 end of  central directory */
      if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK)
          return 0;
      /* Relative offset of the zip64 end of central directory record */
      if (zip64local_getLong64(pzlib_filefunc_def, filestream, &offset) != ZIP_OK)
          return 0;
      /* Total number of disks */
      if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK)
          return 0;
      /* Goto end of central directory record */
      if (ZSEEK64(*pzlib_filefunc_def,filestream, offset, ZLIB_FILEFUNC_SEEK_SET) != 0)
          return 0;
      /* The signature */
      if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK)
          return 0;
      if (uL != ZIP64ENDHEADERMAGIC)
          return 0;
  
      return offset;
  }
  
  extern zipFile ZEXPORT zipOpen4(const void *pathname, int append, ZPOS64_T disk_size, const char ** globalcomment,
      zlib_filefunc64_32_def* pzlib_filefunc64_32_def)
  {
      zip64_internal ziinit;
      zip64_internal* zi;
  #ifndef NO_ADDFILEINEXISTINGZIP
      ZPOS64_T byte_before_the_zipfile;   /* byte before the zipfile, (>0 for sfx)*/
      ZPOS64_T size_central_dir = 0;          /* size of the central directory  */
      ZPOS64_T offset_central_dir = 0;        /* offset of start of central directory */
      ZPOS64_T number_entry_CD = 0;           /* total number of entries in the central dir */
      ZPOS64_T number_entry;
      ZPOS64_T central_pos;
      ZPOS64_T size_central_dir_to_read;
      uLong uL;
      uLong size_comment = 0;
      size_t buf_size = SIZEDATA_INDATABLOCK;
      void* buf_read;
  #endif
      int err = ZIP_OK;
      int mode;
  
      ziinit.z_filefunc.zseek32_file = NULL;
      ziinit.z_filefunc.ztell32_file = NULL;
      if (pzlib_filefunc64_32_def == NULL)
          fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64);
      else
          ziinit.z_filefunc = *pzlib_filefunc64_32_def;
  
      if (append == APPEND_STATUS_CREATE)
          mode = (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE);
      else
          mode = (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING);
  
      ziinit.filestream = ZOPEN64(ziinit.z_filefunc, pathname, mode);
      if (ziinit.filestream == NULL)
          return NULL;
  
      if (append == APPEND_STATUS_CREATEAFTER)
      {
          /* Don't support spanning ZIP with APPEND_STATUS_CREATEAFTER */
          if (disk_size > 0)
              return NULL;
  
          ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END);
      }
  
      ziinit.filestream_with_CD = ziinit.filestream;
      ziinit.append = append;
      ziinit.number_disk = 0;
      ziinit.number_disk_with_CD = 0;
      ziinit.disk_size = disk_size;
      ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream);
      ziinit.in_opened_file_inzip = 0;
      ziinit.ci.stream_initialised = 0;
      ziinit.number_entry = 0;
      ziinit.add_position_when_writting_offset = 0;
      init_linkedlist(&(ziinit.central_dir));
  
      zi = (zip64_internal*)ALLOC(sizeof(zip64_internal));
      if (zi == NULL)
      {
          ZCLOSE64(ziinit.z_filefunc,ziinit.filestream);
          return NULL;
      }
  
  #ifndef NO_ADDFILEINEXISTINGZIP
      /* Add file in a zipfile */
      ziinit.globalcomment = NULL;
      if (append == APPEND_STATUS_ADDINZIP)
      {
          /* Read and Cache Central Directory Records */
          central_pos = zip64local_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream);
          /* Disable to allow appending to empty ZIP archive (must be standard zip, not zip64)
              if (central_pos == 0)
                  err = ZIP_ERRNO;
          */
  
          if (err == ZIP_OK)
          {
              /* Read end of central directory info */
              if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET) != 0)
                  err = ZIP_ERRNO;
  
              /* The signature, already checked */
              if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                  err = ZIP_ERRNO;
              /* Number of this disk */
              if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk) != ZIP_OK)
                  err = ZIP_ERRNO;
              /* Number of the disk with the start of the central directory */
              if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk_with_CD) != ZIP_OK)
                  err = ZIP_ERRNO;
              /* Total number of entries in the central dir on this disk */
              number_entry = 0;
              if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                  err = ZIP_ERRNO;
              else
                  number_entry = uL;
              /* Total number of entries in the central dir */
              number_entry_CD = 0;
              if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                  err = ZIP_ERRNO;
              else
                  number_entry_CD = uL;
              if (number_entry_CD!=number_entry)
                  err = ZIP_BADZIPFILE;
              /* Size of the central directory */
              size_central_dir = 0;
              if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                  err = ZIP_ERRNO;
              else
                  size_central_dir = uL;
              /* Offset of start of central directory with respect to the starting disk number */
              offset_central_dir = 0;
              if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                  err = ZIP_ERRNO;
              else
                  offset_central_dir = uL;
              /* Zipfile global comment length */
              if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &size_comment) != ZIP_OK)
                  err = ZIP_ERRNO;
  
              if ((err == ZIP_OK) && ((number_entry_CD == 0xffff) || (offset_central_dir == 0xffffffff)))
              {
                  /* Format should be Zip64, as the central directory or file size is too large */
                  central_pos = zip64local_SearchCentralDir64(&ziinit.z_filefunc, ziinit.filestream, central_pos);
  
                  if (central_pos)
                  {
                      ZPOS64_T sizeEndOfCentralDirectory;
  
                      if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
                          err = ZIP_ERRNO;
  
                      /* The signature, already checked */
                      if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Size of zip64 end of central directory record */
                      if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &sizeEndOfCentralDirectory) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Version made by */
                      if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Version needed to extract */
                      if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Number of this disk */
                      if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Number of the disk with the start of the central directory */
                      if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk_with_CD) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Total number of entries in the central directory on this disk */
                      if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &number_entry) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Total number of entries in the central directory */
                      if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &number_entry_CD) != ZIP_OK)
                          err = ZIP_ERRNO;
                      if (number_entry_CD!=number_entry)
                          err = ZIP_BADZIPFILE;
                      /* Size of the central directory */
                      if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &size_central_dir) != ZIP_OK)
                          err = ZIP_ERRNO;
                      /* Offset of start of central directory with respect to the starting disk number */
                      if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &offset_central_dir) != ZIP_OK)
                          err = ZIP_ERRNO;
                  }
                  else
                      err = ZIP_BADZIPFILE;
               }
          }
  
          if ((err == ZIP_OK) && (central_pos<offset_central_dir+size_central_dir))
              err = ZIP_BADZIPFILE;
  
          if (err != ZIP_OK)
          {
              ZCLOSE64(ziinit.z_filefunc, ziinit.filestream);
              TRYFREE(zi);
              return NULL;
          }
  
          if (size_comment > 0)
          {
              ziinit.globalcomment = (char*)ALLOC(size_comment+1);
              if (ziinit.globalcomment)
              {
                  size_comment = ZREAD64(ziinit.z_filefunc, ziinit.filestream, ziinit.globalcomment, size_comment);
                  ziinit.globalcomment[size_comment] = 0;
              }
          }
  
          byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir);
          ziinit.add_position_when_writting_offset = byte_before_the_zipfile;
  
          /* Store central directory in memory */
          size_central_dir_to_read = size_central_dir;
          buf_size = SIZEDATA_INDATABLOCK;
          buf_read = (void*)ALLOC(buf_size);
  
          if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream,
                  offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
              err = ZIP_ERRNO;
  
          while ((size_central_dir_to_read > 0) && (err == ZIP_OK))
          {
              ZPOS64_T read_this = SIZEDATA_INDATABLOCK;
              if (read_this > size_central_dir_to_read)
                  read_this = size_central_dir_to_read;
  
              if (ZREAD64(ziinit.z_filefunc, ziinit.filestream, buf_read, (uLong)read_this) != read_this)
                  err = ZIP_ERRNO;
  
              if (err == ZIP_OK)
                  err = add_data_in_datablock(&ziinit.central_dir, buf_read, (uLong)read_this);
  
              size_central_dir_to_read -= read_this;
          }
          TRYFREE(buf_read);
  
          ziinit.begin_pos = byte_before_the_zipfile;
          ziinit.number_entry = number_entry_CD;
  
          if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream,
                  offset_central_dir+byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
              err = ZIP_ERRNO;
      }
  
      if (globalcomment)
          *globalcomment = ziinit.globalcomment;
  #endif
  
      if (err != ZIP_OK)
      {
  #ifndef NO_ADDFILEINEXISTINGZIP
          TRYFREE(ziinit.globalcomment);
  #endif
          TRYFREE(zi);
          return NULL;
      }
  
      *zi = ziinit;
      zipGoToFirstDisk((zipFile)zi);
      return(zipFile)zi;
  }
  
  extern zipFile ZEXPORT zipOpen2(const char *pathname, int append, const char ** globalcomment,
      zlib_filefunc_def* pzlib_filefunc32_def)
  {
      if (pzlib_filefunc32_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
          return zipOpen4(pathname, append, 0, globalcomment, &zlib_filefunc64_32_def_fill);
      }
      return zipOpen4(pathname, append, 0, globalcomment, NULL);
  }
  
  extern zipFile ZEXPORT zipOpen2_64(const void *pathname, int append, const char ** globalcomment,
      zlib_filefunc64_def* pzlib_filefunc_def)
  {
      if (pzlib_filefunc_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
          zlib_filefunc64_32_def_fill.ztell32_file = NULL;
          zlib_filefunc64_32_def_fill.zseek32_file = NULL;
          return zipOpen4(pathname, append, 0, globalcomment, &zlib_filefunc64_32_def_fill);
      }
      return zipOpen4(pathname, append, 0, globalcomment, NULL);
  }
  
  extern zipFile ZEXPORT zipOpen3(const char *pathname, int append, ZPOS64_T disk_size, const char ** globalcomment,
      zlib_filefunc_def* pzlib_filefunc32_def)
  {
      if (pzlib_filefunc32_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
          return zipOpen4(pathname, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill);
      }
      return zipOpen4(pathname, append, disk_size, globalcomment, NULL);
  }
  
  extern zipFile ZEXPORT zipOpen3_64(const void *pathname, int append, ZPOS64_T disk_size, const char ** globalcomment,
      zlib_filefunc64_def* pzlib_filefunc_def)
  {
      if (pzlib_filefunc_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
          zlib_filefunc64_32_def_fill.ztell32_file = NULL;
          zlib_filefunc64_32_def_fill.zseek32_file = NULL;
          return zipOpen4(pathname, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill);
      }
      return zipOpen4(pathname, append, disk_size, globalcomment, NULL);
  }
  
  extern zipFile ZEXPORT zipOpen(const char* pathname, int append)
  {
      return zipOpen3((const void*)pathname,append,0,NULL,NULL);
  }
  
  extern zipFile ZEXPORT zipOpen64(const void* pathname, int append)
  {
      return zipOpen3(pathname,append,0,NULL,NULL);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw, int windowBits, int memLevel,
      int strategy, const char* password, uLong crcForCrypting, uLong versionMadeBy, uLong flagBase, int zip64)
  {
      zip64_internal* zi;
      uInt size_filename;
      uInt size_comment = 0;
      uInt i;
      int err = ZIP_OK;
      ZPOS64_T size_available;
      ZPOS64_T size_needed;
  
  #ifdef NOCRYPT
      (crcForCrypting);
      if (password != NULL)
          return ZIP_PARAMERROR;
  #endif
  
      if (file == NULL)
          return ZIP_PARAMERROR;
  
      if ((method != 0) &&
  #ifdef HAVE_BZIP2
          (method != Z_BZIP2ED) &&
  #endif
          (method != Z_DEFLATED))
          return ZIP_PARAMERROR;
  
      zi = (zip64_internal*)file;
  
      if (zi->in_opened_file_inzip == 1)
      {
          err = zipCloseFileInZip (file);
          if (err != ZIP_OK)
              return err;
      }
  
      if (filename == NULL)
          filename = "-";
      if (comment != NULL)
          size_comment = (uInt)strlen(comment);
  
      size_filename = (uInt)strlen(filename);
  
      if (zipfi == NULL)
          zi->ci.dosDate = 0;
      else
      {
          if (zipfi->dosDate != 0)
              zi->ci.dosDate = zipfi->dosDate;
          else
              zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date);
      }
  
      zi->ci.method = method;
      zi->ci.compression_method = method;
      zi->ci.crc32 = 0;
      zi->ci.stream_initialised = 0;
      zi->ci.pos_in_buffered_data = 0;
      zi->ci.raw = raw;
      zi->ci.flag = flagBase;
      if ((level == 8) || (level == 9))
          zi->ci.flag |= 2;
      if (level == 2)
          zi->ci.flag |= 4;
      if (level == 1)
          zi->ci.flag |= 6;
      if (password != NULL)
      {
          zi->ci.flag |= 1;
  #ifdef HAVE_AES
          zi->ci.method = AES_METHOD;
  #endif
      }
  
      if (zi->disk_size > 0)
      {
          if ((zi->number_disk == 0) && (zi->number_entry == 0))
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)DISKHEADERMAGIC, 4);
  
          /* Make sure enough space available on current disk for local header */
          zipGetDiskSizeAvailable((zipFile)zi, &size_available);
          size_needed = 30 + size_filename + size_extrafield_local;
          if (zi->ci.zip64)
              size_needed += 20;
  #ifdef HAVE_AES
          if (zi->ci.method == AES_METHOD)
              size_needed += 11;
  #endif
          if (size_available < size_needed)
              zipGoToNextDisk((zipFile)zi);
      }
  
      zi->ci.pos_local_header = ZTELL64(zi->z_filefunc, zi->filestream);
      zi->ci.size_comment = size_comment;
      zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global;
      zi->ci.size_centralextra = size_extrafield_global;
      zi->ci.size_centralextrafree = 32; /* Extra space reserved for ZIP64 extra info */
  #ifdef HAVE_AES
      if (zi->ci.method == AES_METHOD)
          zi->ci.size_centralextrafree += 11; /* Extra space reserved for AES extra info */
  #endif
      zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralextrafree + size_comment);
      zi->ci.number_disk = zi->number_disk;
  
      /* Write central directory header */
      zip64local_putValue_inmemory(zi->ci.central_header, (uLong)CENTRALHEADERMAGIC, 4);
      zip64local_putValue_inmemory(zi->ci.central_header+4, (uLong)versionMadeBy, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+6, (uLong)20, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+8, (uLong)zi->ci.flag, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+10, (uLong)zi->ci.method, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+12, (uLong)zi->ci.dosDate, 4);
      zip64local_putValue_inmemory(zi->ci.central_header+16, (uLong)0, 4); /*crc*/
      zip64local_putValue_inmemory(zi->ci.central_header+20, (uLong)0, 4); /*compr size*/
      zip64local_putValue_inmemory(zi->ci.central_header+24, (uLong)0, 4); /*uncompr size*/
      zip64local_putValue_inmemory(zi->ci.central_header+28, (uLong)size_filename, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+30, (uLong)size_extrafield_global, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+32, (uLong)size_comment, 2);
      zip64local_putValue_inmemory(zi->ci.central_header+34, (uLong)zi->ci.number_disk, 2); /*disk nm start*/
  
      if (zipfi == NULL)
          zip64local_putValue_inmemory(zi->ci.central_header+36, (uLong)0, 2);
      else
          zip64local_putValue_inmemory(zi->ci.central_header+36, (uLong)zipfi->internal_fa, 2);
      if (zipfi == NULL)
          zip64local_putValue_inmemory(zi->ci.central_header+38, (uLong)0, 4);
      else
          zip64local_putValue_inmemory(zi->ci.central_header+38, (uLong)zipfi->external_fa, 4);
      if (zi->ci.pos_local_header >= 0xffffffff)
          zip64local_putValue_inmemory(zi->ci.central_header+42, (uLong)0xffffffff, 4);
      else
          zip64local_putValue_inmemory(zi->ci.central_header+42,
              (uLong)zi->ci.pos_local_header - zi->add_position_when_writting_offset, 4);
  
      for (i = 0; i < size_filename; i++)
          zi->ci.central_header[SIZECENTRALHEADER+i] = filename[i];
      for (i = 0; i < size_extrafield_global; i++)
          zi->ci.central_header[SIZECENTRALHEADER+size_filename+i] =
              ((const char*)extrafield_global)[i];
      /* Store comment at the end for later repositioning */
      for (i = 0; i < size_comment; i++)
          zi->ci.central_header[zi->ci.size_centralheader+
              zi->ci.size_centralextrafree+i] = comment[i];
  
      if (zi->ci.central_header == NULL)
          return ZIP_INTERNALERROR;
  
      zi->ci.zip64 = zip64;
      zi->ci.total_compressed = 0;
      zi->ci.total_uncompressed = 0;
      zi->ci.pos_zip64extrainfo = 0;
  
      /* Write the local header */
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)LOCALHEADERMAGIC, 4);
  
      if (err == ZIP_OK)
      {
          if (zi->ci.zip64)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)45, 2); /* version needed to extract */
          else
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)20, 2); /* version needed to extract */
      }
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->ci.flag, 2);
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->ci.method, 2);
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->ci.dosDate, 4);
  
      /* CRC & compressed size & uncompressed size will be filled in later and rewritten later */
  
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0, 4); /* crc 32, unknown */
      if (err == ZIP_OK)
      {
          if (zi->ci.zip64)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xFFFFFFFF, 4); /* compressed size, unknown */
          else
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0, 4); /* compressed size, unknown */
      }
      if (err == ZIP_OK)
      {
          if (zi->ci.zip64) /* uncompressed size, unknown */
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xFFFFFFFF, 4);
          else /* uncompressed size, unknown */
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0, 4);
      }
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_filename, 2);
      if (err == ZIP_OK)
      {
          ZPOS64_T size_extrafield = size_extrafield_local;
          if (zi->ci.zip64)
              size_extrafield += 20;
  #ifdef HAVE_AES
          if (zi->ci.method == AES_METHOD)
              size_extrafield += 11;
  #endif
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_extrafield,2);
      }
      if ((err == ZIP_OK) && (size_filename > 0))
      {
          if (ZWRITE64(zi->z_filefunc, zi->filestream, filename, size_filename) != size_filename)
              err = ZIP_ERRNO;
      }
      if ((err == ZIP_OK) && (size_extrafield_local > 0))
      {
          if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
              err = ZIP_ERRNO;
      }
  
      /* Write the Zip64 extended info */
      if ((err == ZIP_OK) && (zi->ci.zip64))
      {
          short headerid = 1;
          short datasize = 16;
          ZPOS64_T compressed_size = 0;
          ZPOS64_T uncompressed_size = 0;
  
          /* Remember position of Zip64 extended info for the local file header.
             (needed when we update size after done with file) */
          zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc, zi->filestream);
  
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)headerid, 2);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)datasize, 2);
  
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)uncompressed_size, 8);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)compressed_size, 8);
      }
  #ifdef HAVE_AES
      /* Write the AES extended info */
      if ((err == ZIP_OK) && (zi->ci.method == AES_METHOD))
      {
          int headerid = 0x9901;
          short datasize = 7;
  
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, headerid, 2);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, datasize, 2);
  
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, AES_VERSION, 2);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, 'A', 1);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, 'E', 1);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, AES_ENCRYPTIONMODE, 1);
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->ci.compression_method, 2);
      }
  #endif
  
  #ifdef HAVE_BZIP2
      zi->ci.bstream.avail_in = (uInt)0;
      zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
      zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
      zi->ci.bstream.total_in_hi32 = 0;
      zi->ci.bstream.total_in_lo32 = 0;
      zi->ci.bstream.total_out_hi32 = 0;
      zi->ci.bstream.total_out_lo32 = 0;
  #endif
  
      zi->ci.stream.avail_in = (uInt)0;
      zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
      zi->ci.stream.next_out = zi->ci.buffered_data;
      zi->ci.stream.total_in = 0;
      zi->ci.stream.total_out = 0;
      zi->ci.stream.data_type = Z_BINARY;
  
      if ((err == ZIP_OK) && (!zi->ci.raw))
      {
          if (method == Z_DEFLATED)
          {
              zi->ci.stream.zalloc = (alloc_func)0;
              zi->ci.stream.zfree = (free_func)0;
              zi->ci.stream.opaque = (voidpf)zi;
  
              if (windowBits > 0)
                  windowBits = -windowBits;
  
              err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
  
              if (err == Z_OK)
                  zi->ci.stream_initialised = Z_DEFLATED;
          }
          else if (method == Z_BZIP2ED)
          {
  #ifdef HAVE_BZIP2
              zi->ci.bstream.bzalloc = 0;
              zi->ci.bstream.bzfree = 0;
              zi->ci.bstream.opaque = (voidpf)0;
  
              err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0, 35);
              if (err == BZ_OK)
                  zi->ci.stream_initialised = Z_BZIP2ED;
  #endif
          }
      }
  
  #ifndef NOCRYPT
      zi->ci.crypt_header_size = 0;
      if ((err == Z_OK) && ((zi->ci.flag & 1) != 0))
      {
  #ifdef HAVE_AES
          if (zi->ci.method == AES_METHOD)
          {
              unsigned char passverify[AES_PWVERIFYSIZE];
              unsigned char saltvalue[AES_MAXSALTLENGTH];
              uInt saltlength;
  
              if ((AES_ENCRYPTIONMODE < 1) || (AES_ENCRYPTIONMODE > 3))
                  return Z_ERRNO;
  
              saltlength = SALT_LENGTH(AES_ENCRYPTIONMODE);
  
              prng_init(entropy_fun, zi->ci.aes_rng);
              prng_rand(saltvalue, saltlength, zi->ci.aes_rng);
              prng_end(zi->ci.aes_rng);
  
              fcrypt_init(AES_ENCRYPTIONMODE, password, strlen(password), saltvalue, passverify, &zi->ci.aes_ctx);
  
              if (ZWRITE64(zi->z_filefunc, zi->filestream, saltvalue, saltlength) != saltlength)
                  err = ZIP_ERRNO;
              if (ZWRITE64(zi->z_filefunc, zi->filestream, passverify, AES_PWVERIFYSIZE) != AES_PWVERIFYSIZE)
                  err = ZIP_ERRNO;
  
              zi->ci.crypt_header_size = saltlength + AES_PWVERIFYSIZE + AES_AUTHCODESIZE;
          }
          else
  #endif
          {
              unsigned char bufHead[RAND_HEAD_LEN];
              unsigned int sizeHead;
  
              zi->ci.pcrc_32_tab = (const unsigned long *)get_crc_table();
              /*init_keys(password, zi->ci.keys, zi->ci.pcrc_32_tab);*/
  
              sizeHead = crypthead(password, bufHead, RAND_HEAD_LEN, zi->ci.keys, zi->ci.pcrc_32_tab, crcForCrypting);
              zi->ci.crypt_header_size = sizeHead;
  
              if (ZWRITE64(zi->z_filefunc, zi->filestream, bufHead, sizeHead) != sizeHead)
                  err = ZIP_ERRNO;
          }
      }
  #endif
  
      if (err == Z_OK)
          zi->in_opened_file_inzip = 1;
      return err;
  }
  
  extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw, int windowBits,
      int memLevel, int strategy, const char* password, uLong crcForCrypting, uLong versionMadeBy, uLong flagBase)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, raw, windowBits, memLevel,
          strategy, password, crcForCrypting, versionMadeBy, flagBase, 0);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw, int windowBits,
      int memLevel, int strategy, const char* password, uLong crcForCrypting)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, raw, windowBits, memLevel,
          strategy, password, crcForCrypting, VERSIONMADEBY, 0, 0);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw, int windowBits,
      int memLevel, int strategy, const char* password, uLong crcForCrypting, int zip64)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, raw, windowBits, memLevel, strategy,
          password, crcForCrypting, VERSIONMADEBY, 0, zip64);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, raw, -MAX_WBITS, DEF_MEM_LEVEL,
          Z_DEFAULT_STRATEGY, NULL, 0, VERSIONMADEBY, 0, 0);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void* extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int raw, int zip64)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, raw, -MAX_WBITS, DEF_MEM_LEVEL,
          Z_DEFAULT_STRATEGY, NULL, 0, VERSIONMADEBY, 0, zip64);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void*extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level, int zip64)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, 0, -MAX_WBITS, DEF_MEM_LEVEL,
          Z_DEFAULT_STRATEGY, NULL, 0, VERSIONMADEBY, 0, zip64);
  }
  
  extern int ZEXPORT zipOpenNewFileInZip(zipFile file, const char* filename, const zip_fileinfo* zipfi,
      const void* extrafield_local, uInt size_extrafield_local, const void*extrafield_global,
      uInt size_extrafield_global, const char* comment, int method, int level)
  {
      return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
          extrafield_global, size_extrafield_global, comment, method, level, 0, -MAX_WBITS, DEF_MEM_LEVEL,
          Z_DEFAULT_STRATEGY, NULL, 0, VERSIONMADEBY, 0, 0);
  }
  
  /* Flushes the write buffer to disk */
  local int zip64FlushWriteBuffer OF((zip64_internal* zi));
  local int zip64FlushWriteBuffer(zip64_internal* zi)
  {
      int err = ZIP_OK;
      uInt written = 0;
      uInt total_written = 0;
      uInt write = 0;
      uInt max_write = 0;
      ZPOS64_T size_available = 0;
  
      if ((zi->ci.flag & 1) != 0)
      {
  #ifndef NOCRYPT
  #ifdef HAVE_AES
          if (zi->ci.method == AES_METHOD)
          {
              fcrypt_encrypt(zi->ci.buffered_data, zi->ci.pos_in_buffered_data, &zi->ci.aes_ctx);
          }
          else
  #endif
          {
              uInt i;
              int t;
              for (i = 0;i < zi->ci.pos_in_buffered_data; i++)
                  zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t);
          }
  #endif
      }
  
      write = zi->ci.pos_in_buffered_data;
  
      do
      {
          max_write = write;
  
          if (zi->disk_size > 0)
          {
              err = zipGetDiskSizeAvailable((zipFile)zi, &size_available);
              if (err != ZIP_OK)
                  return err;
  
              if (size_available == 0)
              {
                  err = zipGoToNextDisk((zipFile)zi);
                  if (err != ZIP_OK)
                      return err;
              }
  
              if (size_available < (ZPOS64_T)max_write)
                  max_write = (uInt)size_available;
          }
  
          written = (unsigned int)ZWRITE64(zi->z_filefunc, zi->filestream, zi->ci.buffered_data + total_written, max_write);
  
          if (ZERROR64(zi->z_filefunc, zi->filestream))
          {
              err = ZIP_ERRNO;
              break;
          }
  
          total_written += written;
          write -= written;
      }
      while (write > 0);
  
      zi->ci.total_compressed += zi->ci.pos_in_buffered_data;
  
  #ifdef HAVE_BZIP2
      if (zi->ci.compression_method == Z_BZIP2ED)
      {
          zi->ci.total_uncompressed += zi->ci.bstream.total_in_lo32;
          zi->ci.bstream.total_in_lo32 = 0;
          zi->ci.bstream.total_in_hi32 = 0;
      }
      else
  #endif
      {
          zi->ci.total_uncompressed += zi->ci.stream.total_in;
          zi->ci.stream.total_in = 0;
      }
  
      zi->ci.pos_in_buffered_data = 0;
  
      return err;
  }
  
  extern int ZEXPORT zipWriteInFileInZip(zipFile file,const void* buf,unsigned int len)
  {
      zip64_internal* zi;
      int err = ZIP_OK;
  
      if (file == NULL)
          return ZIP_PARAMERROR;
      zi = (zip64_internal*)file;
  
      if (zi->in_opened_file_inzip == 0)
          return ZIP_PARAMERROR;
  
      zi->ci.crc32 = crc32(zi->ci.crc32, buf, (uInt)len);
  
  #ifdef HAVE_BZIP2
      if ((zi->ci.compression_method == Z_BZIP2ED) && (!zi->ci.raw))
      {
          zi->ci.bstream.next_in = (void*)buf;
          zi->ci.bstream.avail_in = len;
          err = BZ_RUN_OK;
  
          while ((err == BZ_RUN_OK) && (zi->ci.bstream.avail_in > 0))
          {
              if (zi->ci.bstream.avail_out == 0)
              {
                  if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
                      err = ZIP_ERRNO;
                  zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
                  zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
              }
              else
              {
                  uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32;
                  uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32;
  
                  err = BZ2_bzCompress(&zi->ci.bstream, BZ_RUN);
  
                  zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo);
              }
          }
  
          if (err == BZ_RUN_OK)
              err = ZIP_OK;
      }
      else
  #endif
      {
          zi->ci.stream.next_in = (Bytef*)buf;
          zi->ci.stream.avail_in = len;
  
          while ((err == ZIP_OK) && (zi->ci.stream.avail_in > 0))
          {
              if (zi->ci.stream.avail_out == 0)
              {
                  if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
                      err = ZIP_ERRNO;
                  zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
                  zi->ci.stream.next_out = zi->ci.buffered_data;
              }
  
              if (err != ZIP_OK)
                  break;
  
              if ((zi->ci.compression_method == Z_DEFLATED) && (!zi->ci.raw))
              {
                  uLong total_out_before = zi->ci.stream.total_out;
                  err = deflate(&zi->ci.stream, Z_NO_FLUSH);
                  zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - total_out_before);
              }
              else
              {
                  uInt copy_this,i;
                  if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
                      copy_this = zi->ci.stream.avail_in;
                  else
                      copy_this = zi->ci.stream.avail_out;
  
                  for (i = 0; i < copy_this; i++)
                      *(((char*)zi->ci.stream.next_out)+i) =
                          *(((const char*)zi->ci.stream.next_in)+i);
  
                  zi->ci.stream.avail_in  -= copy_this;
                  zi->ci.stream.avail_out -= copy_this;
                  zi->ci.stream.next_in += copy_this;
                  zi->ci.stream.next_out += copy_this;
                  zi->ci.stream.total_in += copy_this;
                  zi->ci.stream.total_out += copy_this;
                  zi->ci.pos_in_buffered_data += copy_this;
              }
          }
      }
  
      return err;
  }
  
  extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uLong uncompressed_size, uLong crc32)
  {
      return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32);
  }
  
  extern int ZEXPORT zipCloseFileInZipRaw64(zipFile file, ZPOS64_T uncompressed_size, uLong crc32)
  {
      zip64_internal* zi;
      ZPOS64_T compressed_size;
      uLong invalidValue = 0xffffffff;
      uLong i = 0;
      short datasize = 0;
      int err = ZIP_OK;
  
      if (file == NULL)
          return ZIP_PARAMERROR;
      zi = (zip64_internal*)file;
  
      if (zi->in_opened_file_inzip == 0)
          return ZIP_PARAMERROR;
      zi->ci.stream.avail_in = 0;
  
      if (!zi->ci.raw)
      {
          if (zi->ci.compression_method == Z_DEFLATED)
          {
              while (err == ZIP_OK)
              {
                  uLong total_out_before;
                  if (zi->ci.stream.avail_out == 0)
                  {
                      if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
                          err = ZIP_ERRNO;
                      zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
                      zi->ci.stream.next_out = zi->ci.buffered_data;
                  }
                  total_out_before = zi->ci.stream.total_out;
                  err = deflate(&zi->ci.stream, Z_FINISH);
                  zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - total_out_before);
              }
          }
          else if (zi->ci.compression_method == Z_BZIP2ED)
          {
  #ifdef HAVE_BZIP2
              err = BZ_FINISH_OK;
              while (err == BZ_FINISH_OK)
              {
                  uLong total_out_before;
                  if (zi->ci.bstream.avail_out == 0)
                  {
                      if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
                          err = ZIP_ERRNO;
                      zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
                      zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
                  }
                  total_out_before = zi->ci.bstream.total_out_lo32;
                  err = BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH);
                  if (err == BZ_STREAM_END)
                      err = Z_STREAM_END;
                  zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - total_out_before);
              }
  
              if (err == BZ_FINISH_OK)
                  err = ZIP_OK;
  #endif
          }
      }
  
      if (err == Z_STREAM_END)
          err = ZIP_OK; /* this is normal */
  
      if ((zi->ci.pos_in_buffered_data > 0) && (err == ZIP_OK))
      {
          if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
              err = ZIP_ERRNO;
      }
  
  #ifdef HAVE_AES
      if (zi->ci.method == AES_METHOD)
      {
          unsigned char authcode[AES_AUTHCODESIZE];
  
          fcrypt_end(authcode, &zi->ci.aes_ctx);
  
          if (ZWRITE64(zi->z_filefunc, zi->filestream, authcode, AES_AUTHCODESIZE) != AES_AUTHCODESIZE)
              err = ZIP_ERRNO;
      }
  #endif
  
      if (!zi->ci.raw)
      {
          if (zi->ci.compression_method == Z_DEFLATED)
          {
              int tmp_err = deflateEnd(&zi->ci.stream);
              if (err == ZIP_OK)
                  err = tmp_err;
              zi->ci.stream_initialised = 0;
          }
  #ifdef HAVE_BZIP2
          else if (zi->ci.compression_method == Z_BZIP2ED)
          {
              int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream);
              if (err == ZIP_OK)
                  err = tmperr;
              zi->ci.stream_initialised = 0;
          }
  #endif
  
          crc32 = (uLong)zi->ci.crc32;
          uncompressed_size = zi->ci.total_uncompressed;
      }
  
      compressed_size = zi->ci.total_compressed;
  #ifndef NOCRYPT
      compressed_size += zi->ci.crypt_header_size;
  #endif
  
      /* Update current item crc and sizes */
      if (compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff)
      {
          zip64local_putValue_inmemory(zi->ci.central_header+4, (uLong)45, 2); /* version made by */
          zip64local_putValue_inmemory(zi->ci.central_header+6, (uLong)45, 2); /* version needed */
      }
      zip64local_putValue_inmemory(zi->ci.central_header+16, crc32, 4); /* crc */
      if (compressed_size >= 0xffffffff)
          zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue, 4); /* compr size */
      else
          zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size, 4); /* compr size */
      if (zi->ci.stream.data_type == Z_ASCII)
          zip64local_putValue_inmemory(zi->ci.central_header+36, (uLong)Z_ASCII, 2); /* internal file attrib */
      if (uncompressed_size >= 0xffffffff)
          zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue, 4); /* uncompr size */
      else
          zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size, 4); /* uncompr size */
  
      /* Add ZIP64 extra info field for uncompressed size */
      if (uncompressed_size >= 0xffffffff)
          datasize += 8;
      /* Add ZIP64 extra info field for compressed size */
      if (compressed_size >= 0xffffffff)
          datasize += 8;
      /* Add ZIP64 extra info field for relative offset to local file header of current file */
      if (zi->ci.pos_local_header >= 0xffffffff)
          datasize += 8;
  
      /* Add Extra Information Header for 'ZIP64 information' */
      if (datasize > 0)
      {
          char* p = zi->ci.central_header + zi->ci.size_centralheader;
  
          if ((uLong)(datasize + 4) > zi->ci.size_centralextrafree)
              return ZIP_BADZIPFILE;
  
          zip64local_putValue_inmemory(p, 0x0001, 2);
          p += 2;
          zip64local_putValue_inmemory(p, datasize, 2);
          p += 2;
  
          if (uncompressed_size >= 0xffffffff)
          {
              zip64local_putValue_inmemory(p, uncompressed_size, 8);
              p += 8;
          }
          if (compressed_size >= 0xffffffff)
          {
              zip64local_putValue_inmemory(p, compressed_size, 8);
              p += 8;
          }
          if (zi->ci.pos_local_header >= 0xffffffff)
          {
              zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8);
              p += 8;
          }
  
          zi->ci.size_centralextrafree -= datasize + 4;
          zi->ci.size_centralheader += datasize + 4;
          zi->ci.size_centralextra += datasize + 4;
  
          zip64local_putValue_inmemory(zi->ci.central_header+30, (uLong)zi->ci.size_centralextra, 2);
      }
  
  #ifdef HAVE_AES
      /* Write the AES extended info */
      if (zi->ci.method == AES_METHOD)
      {
          char* p = zi->ci.central_header + zi->ci.size_centralheader;
  
          datasize = 7;
  
          if ((uLong)(datasize + 4) > zi->ci.size_centralextrafree)
              return ZIP_BADZIPFILE;
  
          zip64local_putValue_inmemory(p, 0x9901, 2);
          p += 2;
          zip64local_putValue_inmemory(p, datasize, 2);
          p += 2;
          zip64local_putValue_inmemory(p, AES_VERSION, 2);
          p += 2;
          zip64local_putValue_inmemory(p, 'A', 1);
          p += 1;
          zip64local_putValue_inmemory(p, 'E', 1);
          p += 1;
          zip64local_putValue_inmemory(p, AES_ENCRYPTIONMODE, 1);
          p += 1;
          zip64local_putValue_inmemory(p, zi->ci.compression_method, 2);
          p += 2;
  
          zi->ci.size_centralextrafree -= datasize + 4;
          zi->ci.size_centralheader += datasize + 4;
          zi->ci.size_centralextra += datasize + 4;
  
          zip64local_putValue_inmemory(zi->ci.central_header+30, (uLong)zi->ci.size_centralextra, 2);
      }
  #endif
      /* Restore comment to correct position */
      for (i = 0; i < zi->ci.size_comment; i++)
          zi->ci.central_header[zi->ci.size_centralheader+i] =
              zi->ci.central_header[zi->ci.size_centralheader+zi->ci.size_centralextrafree+i];
      zi->ci.size_centralheader += zi->ci.size_comment;
  
      if (err == ZIP_OK)
          err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader);
  
      free(zi->ci.central_header);
  
      if (err == ZIP_OK)
      {
          /* Update the LocalFileHeader with the new values. */
          ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc, zi->filestream);
          uLong cur_number_disk = zi->number_disk;
  
          /* Local file header is stored on previous disk, switch to make edits */
          if (zi->ci.number_disk != cur_number_disk)
              err = zipGoToSpecificDisk(file, (int)zi->ci.number_disk, 1);
  
          if (ZSEEK64(zi->z_filefunc, zi->filestream, zi->ci.pos_local_header + 14, ZLIB_FILEFUNC_SEEK_SET) != 0)
              err = ZIP_ERRNO;
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream,crc32,4); /* crc 32, unknown */
  
          if (uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff)
          {
              if (zi->ci.pos_zip64extrainfo > 0)
              {
                  /* Update the size in the ZIP64 extended field. */
                  if (ZSEEK64(zi->z_filefunc, zi->filestream, zi->ci.pos_zip64extrainfo + 4, ZLIB_FILEFUNC_SEEK_SET) != 0)
                      err = ZIP_ERRNO;
  
                  if (err == ZIP_OK) /* compressed size, unknown */
                      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
                  if (err == ZIP_OK) /* uncompressed size, unknown */
                      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
              }
              else
                  err = ZIP_BADZIPFILE; /* Caller passed zip64 = 0, so no room for zip64 info -> fatal */
          }
          else
          {
            if (err == ZIP_OK) /* compressed size, unknown */
                err = zip64local_putValue(&zi->z_filefunc, zi->filestream,compressed_size, 4);
            if (err == ZIP_OK) /* uncompressed size, unknown */
                err = zip64local_putValue(&zi->z_filefunc, zi->filestream,uncompressed_size, 4);
          }
  
          /* Now switch back again to the disk we were on before */
          if (zi->ci.number_disk != cur_number_disk)
              err = zipGoToSpecificDisk(file, (int)cur_number_disk, 1);
  
          if (ZSEEK64(zi->z_filefunc, zi->filestream, cur_pos_inzip, ZLIB_FILEFUNC_SEEK_SET) != 0)
              err = ZIP_ERRNO;
      }
  
      zi->number_entry++;
      zi->in_opened_file_inzip = 0;
  
      return err;
  }
  
  extern int ZEXPORT zipCloseFileInZip(zipFile file)
  {
      return zipCloseFileInZipRaw(file, 0, 0);
  }
  
  extern int ZEXPORT zipClose(zipFile file, const char* global_comment)
  {
      zip64_internal* zi;
      int err = 0;
      uLong size_centraldir = 0;
      uInt size_global_comment = 0;
      ZPOS64_T centraldir_pos_inzip;
      ZPOS64_T pos = 0;
      uLong write = 0;
  
      if (file == NULL)
          return ZIP_PARAMERROR;
  
      zi = (zip64_internal*)file;
  
      if (zi->in_opened_file_inzip == 1)
          err = zipCloseFileInZip(file);
  
  #ifndef NO_ADDFILEINEXISTINGZIP
      if (global_comment == NULL)
          global_comment = zi->globalcomment;
  #endif
  
      if (zi->filestream != zi->filestream_with_CD)
      {
          if (ZCLOSE64(zi->z_filefunc, zi->filestream) != 0)
              if (err == ZIP_OK)
                  err = ZIP_ERRNO;
          if (zi->disk_size > 0)
              zi->number_disk_with_CD = zi->number_disk + 1;
          zi->filestream = zi->filestream_with_CD;
      }
  
      centraldir_pos_inzip = ZTELL64(zi->z_filefunc, zi->filestream);
  
      if (err == ZIP_OK)
      {
          linkedlist_datablock_internal* ldi = zi->central_dir.first_block;
          while (ldi!= NULL)
          {
              if ((err == ZIP_OK) && (ldi->filled_in_this_block > 0))
              {
                  write = ZWRITE64(zi->z_filefunc, zi->filestream, ldi->data, ldi->filled_in_this_block);
                  if (write != ldi->filled_in_this_block)
                      err = ZIP_ERRNO;
              }
  
              size_centraldir += ldi->filled_in_this_block;
              ldi = ldi->next_datablock;
          }
      }
  
      free_linkedlist(&(zi->central_dir));
  
      pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
  
      /* Write the ZIP64 central directory header */
      if (pos >= 0xffffffff || zi->number_entry > 0xffff)
      {
          ZPOS64_T zip64eocd_pos_inzip = ZTELL64(zi->z_filefunc, zi->filestream);
          uLong zip64datasize = 44;
  
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ZIP64ENDHEADERMAGIC, 4);
  
          /* Size of this 'zip64 end of central directory' */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)zip64datasize, 8);
          /* Version made by */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)45, 2);
          /* Version needed */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)45, 2);
          /* Number of this disk */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4);
          /* Number of the disk with the start of the central directory */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4);
          /* Total number of entries in the central dir on this disk */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
          /* Total number of entries in the central dir */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
          /* Size of the central directory */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)size_centraldir, 8);
  
          if (err == ZIP_OK)
          {
              /* Offset of start of central directory with respect to the starting disk number */
              ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)pos, 8);
          }
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ZIP64ENDLOCHEADERMAGIC, 4);
  
          /* Number of the disk with the start of the central directory */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4);
          /* Relative offset to the Zip64EndOfCentralDirectory */
          if (err == ZIP_OK)
          {
              ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset;
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, pos, 8);
          }
          /* Number of the disk with the start of the central directory */
          if (err == ZIP_OK)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD+1, 4);
      }
  
      /* Write the central directory header */
  
      /* Signature */
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ENDHEADERMAGIC, 4);
      /* Number of this disk */
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 2);
      /* Number of the disk with the start of the central directory */
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 2);
      /* Total number of entries in the central dir on this disk */
      if (err == ZIP_OK)
      {
          if (zi->number_entry >= 0xffff)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xffff, 2); /* use value in ZIP64 record */
          else
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_entry, 2);
      }
      /* Total number of entries in the central dir */
      if (err == ZIP_OK)
      {
          if (zi->number_entry >= 0xffff)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xffff, 2); /* use value in ZIP64 record */
          else
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_entry, 2);
      }
      /* Size of the central directory */
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_centraldir,4);
      /* Offset of start of central directory with respect to the starting disk number */
      if (err == ZIP_OK)
      {
          ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
          if (pos >= 0xffffffff)
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xffffffff, 4);
          else
              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)pos, 4);
      }
  
      /* Write global comment */
  
      if (global_comment != NULL)
          size_global_comment = (uInt)strlen(global_comment);
      if (err == ZIP_OK)
          err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_global_comment, 2);
      if (err == ZIP_OK && size_global_comment > 0)
      {
          if (ZWRITE64(zi->z_filefunc, zi->filestream, global_comment, size_global_comment) != size_global_comment)
              err = ZIP_ERRNO;
      }
  
      if ((ZCLOSE64(zi->z_filefunc, zi->filestream) != 0) && (err == ZIP_OK))
          err = ZIP_ERRNO;
  
  #ifndef NO_ADDFILEINEXISTINGZIP
      TRYFREE(zi->globalcomment);
  #endif
      TRYFREE(zi);
  
      return err;
  }
  