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minizip-ng/zip.c
Tobias Reh 8658af7e0a prefer 0 date over uninitialized value
2021-05-26 10:40:48 -07:00

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/* zip.c -- IO on .zip files using zlib
Version 1.2.0, September 16th, 2017
part of the MiniZip project
Copyright (C) 2010-2017 Nathan Moinvaziri
Modifications for AES, PKWARE disk spanning
https://github.com/nmoinvaz/minizip
Copyright (C) 2009-2010 Mathias Svensson
Modifications for Zip64 support
http://result42.com
Copyright (C) 1998-2010 Gilles Vollant
http://www.winimage.com/zLibDll/minizip.html
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 <stdint.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#include "zlib.h"
#include "zip.h"
#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"
#endif
#ifdef HAVE_APPLE_COMPRESSION
# include <compression.h>
#endif
#ifndef NOCRYPT
# include "crypt.h"
#endif
#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 DATADESCRIPTORMAGIC (0x08074b50)
#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 (UINT16_MAX)
#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) ((uint64_t)(((unsigned long)(a)) | ((uint64_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;
uint32_t avail_in_this_block;
uint32_t filled_in_this_block;
uint32_t unused; /* for future use and alignment */
uint8_t 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_APPLE_COMPRESSION
compression_stream astream; /* libcompression stream structure */
#endif
#ifdef HAVE_AES
fcrypt_ctx aes_ctx;
prng_ctx aes_rng[1];
#endif
int stream_initialised; /* 1 is stream is initialized */
uint32_t pos_in_buffered_data; /* last written byte in buffered_data */
uint64_t pos_local_header; /* offset of the local header of the file currently writing */
char *central_header; /* central header data for the current file */
uint16_t size_centralextra;
uint16_t size_centralheader; /* size of the central header for cur file */
uint16_t size_centralextrafree; /* Extra bytes allocated to the central header but that are not used */
uint16_t size_comment;
uint16_t flag; /* flag of the file currently writing */
uint16_t method; /* compression method written to file.*/
uint16_t compression_method; /* compression method to use */
int raw; /* 1 for directly writing raw data */
uint8_t buffered_data[Z_BUFSIZE]; /* buffer contain compressed data to be writ*/
uint32_t dos_date;
uint32_t crc32;
int zip64; /* add ZIP64 extended information in the extra field */
uint32_t number_disk; /* number of current disk used for spanning ZIP */
uint64_t total_compressed;
uint64_t total_uncompressed;
#ifndef NOCRYPT
uint32_t keys[3]; /* keys defining the pseudo-random sequence */
const z_crc_t *pcrc_32_tab;
#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 */
uint64_t add_position_when_writting_offset;
uint64_t number_entry;
uint64_t disk_size; /* size of each disk */
uint32_t number_disk; /* number of the current disk, used for spanning ZIP */
uint32_t 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 */
static linkedlist_datablock_internal *allocate_new_datablock(void)
{
linkedlist_datablock_internal *ldi = NULL;
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 */
static void free_datablock(linkedlist_datablock_internal *ldi)
{
while (ldi != NULL)
{
linkedlist_datablock_internal *ldinext = ldi->next_datablock;
TRYFREE(ldi);
ldi = ldinext;
}
}
/* Initialize linked list */
static void init_linkedlist(linkedlist_data *ll)
{
ll->first_block = ll->last_block = NULL;
}
/* Free entire linked list and all data blocks */
static 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 */
static int add_data_in_datablock(linkedlist_data *ll, const void *buf, uint32_t len)
{
linkedlist_datablock_internal *ldi = NULL;
const unsigned char *from_copy = NULL;
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)
{
uint32_t copy_this = 0;
uint32_t i = 0;
unsigned char *to_copy = NULL;
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 = ldi->avail_in_this_block;
else
copy_this = 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;
}
/* Inputs a long in LSB order to the given file: nbByte == 1, 2 ,4 or 8 (byte, short or long, uint64_t) */
static int zipWriteValue(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream,
uint64_t x, uint32_t len)
{
unsigned char buf[8];
uint32_t n = 0;
for (n = 0; n < len; n++)
{
buf[n] = (unsigned char)(x & 0xff);
x >>= 8;
}
if (x != 0)
{
/* Data overflow - hack for ZIP64 (X Roche) */
for (n = 0; n < len; n++)
{
buf[n] = 0xff;
}
}
if (ZWRITE64(*pzlib_filefunc_def, filestream, buf, len) != len)
return ZIP_ERRNO;
return ZIP_OK;
}
static void zipWriteValueToMemory(void* dest, uint64_t x, uint32_t len)
{
unsigned char *buf = (unsigned char*)dest;
uint32_t n = 0;
for (n = 0; n < len; n++)
{
buf[n] = (unsigned char)(x & 0xff);
x >>= 8;
}
if (x != 0)
{
/* data overflow - hack for ZIP64 */
for (n = 0; n < len; n++)
{
buf[n] = 0xff;
}
}
}
static void zipWriteValueToMemoryAndMove(unsigned char **dest_ptr, uint64_t x, uint32_t len)
{
zipWriteValueToMemory(*dest_ptr, x, len);
*dest_ptr += len;
}
static int zipReadUInt8(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint8_t *value)
{
uint8_t c = 0;
if (ZREAD64(*pzlib_filefunc_def, filestream, &c, 1) == 1)
{
*value = (uint8_t)c;
return ZIP_OK;
}
if (ZERROR64(*pzlib_filefunc_def, filestream))
return ZIP_ERRNO;
return ZIP_EOF;
}
static int zipReadUInt16(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint16_t *value)
{
uint16_t x = 0;
uint8_t c = 0;
int err = ZIP_OK;
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x = (uint16_t)c;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint16_t)c) << 8;
if (err == ZIP_OK)
*value = x;
else
*value = 0;
return err;
}
static int zipReadUInt32(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint32_t *value)
{
uint32_t x = 0;
uint8_t c = 0;
int err = ZIP_OK;
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x = (uint32_t)c;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint32_t)c) << 8;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint32_t)c) << 16;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint32_t)c) << 24;
if (err == ZIP_OK)
*value = x;
else
*value = 0;
return err;
}
static int zipReadUInt64(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint64_t *value)
{
uint64_t x = 0;
uint8_t c = 0;
int err = ZIP_OK;
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x = (uint64_t)c;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 8;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 16;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 24;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 32;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 40;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 48;
if (err == ZIP_OK)
err = zipReadUInt8(pzlib_filefunc_def, filestream, &c);
x += ((uint64_t)c) << 56;
if (err == ZIP_OK)
*value = x;
else
*value = 0;
return err;
}
/* Gets the amount of bytes left to write to the current disk for spanning archives */
static void zipGetDiskSizeAvailable(zipFile file, uint64_t *size_available)
{
zip64_internal *zi = NULL;
uint64_t current_disk_size = 0;
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;
}
/* Goes to a specific disk number for spanning archives */
static int zipGoToSpecificDisk(zipFile file, uint32_t number_disk, int open_existing)
{
zip64_internal *zi = NULL;
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 */
static int zipGoToFirstDisk(zipFile file)
{
zip64_internal *zi = NULL;
uint32_t number_disk_next = 0;
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 = 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 */
static int zipGoToNextDisk(zipFile file)
{
zip64_internal *zi = NULL;
uint64_t size_available_in_disk = 0;
uint32_t number_disk_next = 0;
int err = ZIP_OK;
zi = (zip64_internal*)file;
if (zi->disk_size == 0)
return err;
number_disk_next = 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;
zipGetDiskSizeAvailable(file, &size_available_in_disk);
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) */
static uint64_t zipSearchCentralDir(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream)
{
unsigned char *buf = NULL;
uint64_t file_size = 0;
uint64_t back_read = 4;
uint64_t max_back = UINT16_MAX; /* maximum size of global comment */
uint64_t pos_found = 0;
uint32_t read_size = 0;
uint64_t read_pos = 0;
uint32_t i = 0;
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) : (uint32_t)(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 = 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) */
static uint64_t zipSearchCentralDir64(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream,
const uint64_t endcentraloffset)
{
uint64_t offset = 0;
uint32_t value32 = 0;
/* 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 (zipReadUInt32(pzlib_filefunc_def, filestream, &value32) != ZIP_OK)
return 0;
if (value32 != ZIP64ENDLOCHEADERMAGIC)
return 0;
/* Number of the disk with the start of the zip64 end of central directory */
if (zipReadUInt32(pzlib_filefunc_def, filestream, &value32) != ZIP_OK)
return 0;
/* Relative offset of the zip64 end of central directory record */
if (zipReadUInt64(pzlib_filefunc_def, filestream, &offset) != ZIP_OK)
return 0;
/* Total number of disks */
if (zipReadUInt32(pzlib_filefunc_def, filestream, &value32) != 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 (zipReadUInt32(pzlib_filefunc_def, filestream, &value32) != ZIP_OK)
return 0;
if (value32 != ZIP64ENDHEADERMAGIC)
return 0;
return offset;
}
extern zipFile ZEXPORT zipOpen4(const void *path, int append, uint64_t disk_size, const char **globalcomment,
zlib_filefunc64_32_def *pzlib_filefunc64_32_def)
{
zip64_internal ziinit;
zip64_internal *zi = NULL;
#ifndef NO_ADDFILEINEXISTINGZIP
uint64_t byte_before_the_zipfile = 0; /* byte before the zipfile, (>0 for sfx)*/
uint64_t size_central_dir = 0; /* size of the central directory */
uint64_t offset_central_dir = 0; /* offset of start of central directory */
uint64_t number_entry_CD = 0; /* total number of entries in the central dir */
uint64_t number_entry = 0;
uint64_t central_pos = 0;
uint64_t size_central_dir_to_read = 0;
uint16_t value16 = 0;
uint32_t value32 = 0;
uint16_t size_comment = 0;
size_t buf_size = SIZEDATA_INDATABLOCK;
void *buf_read = NULL;
#endif
int err = ZIP_OK;
int mode = 0;
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, path, 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.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 = zipSearchCentralDir(&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 (zipReadUInt32(&ziinit.z_filefunc, ziinit.filestream, &value32) != ZIP_OK)
err = ZIP_ERRNO;
/* Number of this disk */
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
ziinit.number_disk = value16;
/* Number of the disk with the start of the central directory */
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
ziinit.number_disk_with_CD = value16;
/* Total number of entries in the central dir on this disk */
number_entry = 0;
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
else
number_entry = value16;
/* Total number of entries in the central dir */
number_entry_CD = 0;
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
else
number_entry_CD = value16;
if (number_entry_CD!=number_entry)
err = ZIP_BADZIPFILE;
/* Size of the central directory */
size_central_dir = 0;
if (zipReadUInt32(&ziinit.z_filefunc, ziinit.filestream, &value32) != ZIP_OK)
err = ZIP_ERRNO;
else
size_central_dir = value32;
/* Offset of start of central directory with respect to the starting disk number */
offset_central_dir = 0;
if (zipReadUInt32(&ziinit.z_filefunc, ziinit.filestream, &value32) != ZIP_OK)
err = ZIP_ERRNO;
else
offset_central_dir = value32;
/* Zipfile global comment length */
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &size_comment) != ZIP_OK)
err = ZIP_ERRNO;
if ((err == ZIP_OK) && ((number_entry_CD == UINT16_MAX) || (offset_central_dir == UINT32_MAX)))
{
/* Format should be Zip64, as the central directory or file size is too large */
central_pos = zipSearchCentralDir64(&ziinit.z_filefunc, ziinit.filestream, central_pos);
if (central_pos)
{
uint64_t sizeEndOfCentralDirectory;
if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
err = ZIP_ERRNO;
/* The signature, already checked */
if (zipReadUInt32(&ziinit.z_filefunc, ziinit.filestream, &value32) != ZIP_OK)
err = ZIP_ERRNO;
/* Size of zip64 end of central directory record */
if (zipReadUInt64(&ziinit.z_filefunc, ziinit.filestream, &sizeEndOfCentralDirectory) != ZIP_OK)
err = ZIP_ERRNO;
/* Version made by */
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
/* Version needed to extract */
if (zipReadUInt16(&ziinit.z_filefunc, ziinit.filestream, &value16) != ZIP_OK)
err = ZIP_ERRNO;
/* Number of this disk */
if (zipReadUInt32(&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 (zipReadUInt32(&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 (zipReadUInt64(&ziinit.z_filefunc, ziinit.filestream, &number_entry) != ZIP_OK)
err = ZIP_ERRNO;
/* Total number of entries in the central directory */
if (zipReadUInt64(&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 (zipReadUInt64(&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 (zipReadUInt64(&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) && (size_comment > 0))
{
ziinit.globalcomment = (char*)ALLOC(size_comment+1);
if (ziinit.globalcomment)
{
if (ZREAD64(ziinit.z_filefunc, ziinit.filestream, ziinit.globalcomment, size_comment) != size_comment)
err = ZIP_ERRNO;
else
ziinit.globalcomment[size_comment] = 0;
}
}
if (err != ZIP_OK)
{
ZCLOSE64(ziinit.z_filefunc, ziinit.filestream);
TRYFREE(ziinit.globalcomment);
TRYFREE(zi);
return NULL;
}
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))
{
uint64_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, (uint32_t)read_this) != read_this)
err = ZIP_ERRNO;
if (err == ZIP_OK)
err = add_data_in_datablock(&ziinit.central_dir, buf_read, (uint32_t)read_this);
size_central_dir_to_read -= read_this;
}
TRYFREE(buf_read);
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 *path, 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(path, append, 0, globalcomment, &zlib_filefunc64_32_def_fill);
}
return zipOpen4(path, append, 0, globalcomment, NULL);
}
extern zipFile ZEXPORT zipOpen2_64(const void *path, 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(path, append, 0, globalcomment, &zlib_filefunc64_32_def_fill);
}
return zipOpen4(path, append, 0, globalcomment, NULL);
}
extern zipFile ZEXPORT zipOpen3(const char *path, int append, uint64_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(path, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill);
}
return zipOpen4(path, append, disk_size, globalcomment, NULL);
}
extern zipFile ZEXPORT zipOpen3_64(const void *path, int append, uint64_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(path, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill);
}
return zipOpen4(path, append, disk_size, globalcomment, NULL);
}
extern zipFile ZEXPORT zipOpen(const char *path, int append)
{
return zipOpen3(path, append, 0, NULL, NULL);
}
extern zipFile ZEXPORT zipOpen64(const void *path, int append)
{
return zipOpen3_64(path, append, 0, NULL, NULL);
}
extern int ZEXPORT zipOpenNewFileInZip_internal(zipFile file,
const char *filename,
const zip_fileinfo *zipfi,
const void *extrafield_local,
uint16_t size_extrafield_local,
const void *extrafield_global,
uint16_t size_extrafield_global,
const char *comment,
uint16_t flag_base,
int zip64,
uint16_t method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char *password,
int aes,
uint16_t version_madeby)
{
zip64_internal *zi = NULL;
uint64_t size_available = 0;
uint64_t size_needed = 0;
uint16_t size_filename = 0;
uint16_t size_comment = 0;
uint16_t i = 0;
unsigned char *central_dir = NULL;
int err = ZIP_OK;
#ifdef NOCRYPT
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 = (uint16_t)strlen(comment);
size_filename = (uint16_t)strlen(filename);
if (zipfi == NULL)
zi->ci.dos_date = 0;
else
zi->ci.dos_date = zipfi->dos_date;
zi->ci.method = method;
zi->ci.compression_method = method;
zi->ci.raw = raw;
zi->ci.flag = flag_base | 8;
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
if (aes)
zi->ci.method = AES_METHOD;
#endif
}
else
{
zi->ci.flag &= ~1;
}
if (zi->disk_size > 0)
{
if ((zi->number_disk == 0) && (zi->number_entry == 0))
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)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;
#ifdef HAVE_AES
if (zi->ci.method == AES_METHOD)
size_needed += 11;
#endif
if (size_available < size_needed)
zipGoToNextDisk((zipFile)zi);
}
zi->ci.zip64 = zip64;
zi->ci.pos_local_header = ZTELL64(zi->z_filefunc, zi->filestream);
if (zi->ci.pos_local_header >= UINT32_MAX)
zi->ci.zip64 = 1;
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((uint32_t)zi->ci.size_centralheader + zi->ci.size_centralextrafree + size_comment);
zi->ci.number_disk = zi->number_disk;
/* Write central directory header */
central_dir = (unsigned char*)zi->ci.central_header;
zipWriteValueToMemoryAndMove(&central_dir, (uint32_t)CENTRALHEADERMAGIC, 4);
zipWriteValueToMemoryAndMove(&central_dir, version_madeby, 2);
if (zi->ci.zip64)
zipWriteValueToMemoryAndMove(&central_dir, (uint16_t)45, 2);
else
zipWriteValueToMemoryAndMove(&central_dir, (uint16_t)20, 2);
zipWriteValueToMemoryAndMove(&central_dir, zi->ci.flag, 2);
zipWriteValueToMemoryAndMove(&central_dir, zi->ci.method, 2);
zipWriteValueToMemoryAndMove(&central_dir, zi->ci.dos_date, 4);
zipWriteValueToMemoryAndMove(&central_dir, (uint32_t)0, 4); /*crc*/
zipWriteValueToMemoryAndMove(&central_dir, (uint32_t)0, 4); /*compr size*/
zipWriteValueToMemoryAndMove(&central_dir, (uint32_t)0, 4); /*uncompr size*/
zipWriteValueToMemoryAndMove(&central_dir, size_filename, 2);
zipWriteValueToMemoryAndMove(&central_dir, size_extrafield_global, 2);
zipWriteValueToMemoryAndMove(&central_dir, size_comment, 2);
zipWriteValueToMemoryAndMove(&central_dir, (uint16_t)zi->ci.number_disk, 2); /*disk nm start*/
if (zipfi == NULL)
zipWriteValueToMemoryAndMove(&central_dir, (uint16_t)0, 2);
else
zipWriteValueToMemoryAndMove(&central_dir, zipfi->internal_fa, 2);
if (zipfi == NULL)
zipWriteValueToMemoryAndMove(&central_dir, (uint32_t)0, 4);
else
zipWriteValueToMemoryAndMove(&central_dir, zipfi->external_fa, 4);
if (zi->ci.pos_local_header >= UINT32_MAX)
zipWriteValueToMemoryAndMove(&central_dir, UINT32_MAX, 4);
else
zipWriteValueToMemoryAndMove(&central_dir,
(uint32_t)(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;
/* Write the local header */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)LOCALHEADERMAGIC, 4);
if (err == ZIP_OK)
{
if (zi->ci.zip64)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)45, 2); /* version needed to extract */
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)20, 2); /* version needed to extract */
}
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->ci.flag, 2);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->ci.method, 2);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->ci.dos_date, 4);
/* CRC & compressed size & uncompressed size is in data descriptor */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)0, 4); /* crc 32, unknown */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)0, 4); /* compressed size, unknown */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)0, 4); /* uncompressed size, unknown */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, size_filename, 2);
if (err == ZIP_OK)
{
uint64_t size_extrafield = size_extrafield_local;
#ifdef HAVE_AES
if (zi->ci.method == AES_METHOD)
size_extrafield += 11;
#endif
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)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;
}
#ifdef HAVE_AES
/* Write the AES extended info */
if ((err == ZIP_OK) && (zi->ci.method == AES_METHOD))
{
int headerid = 0x9901;
short datasize = 7;
err = zipWriteValue(&zi->z_filefunc, zi->filestream, headerid, 2);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, datasize, 2);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, AES_VERSION, 2);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, 'A', 1);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, 'E', 1);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, AES_ENCRYPTIONMODE, 1);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->ci.compression_method, 2);
}
#endif
zi->ci.crc32 = 0;
zi->ci.stream_initialised = 0;
zi->ci.pos_in_buffered_data = 0;
zi->ci.total_compressed = 0;
zi->ci.total_uncompressed = 0;
#ifdef HAVE_BZIP2
zi->ci.bstream.avail_in = (uint16_t)0;
zi->ci.bstream.avail_out = (uint16_t)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 = (uint16_t)0;
zi->ci.stream.avail_out = 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;
#ifdef HAVE_APPLE_COMPRESSION
err = compression_stream_init(&zi->ci.astream, COMPRESSION_STREAM_ENCODE, COMPRESSION_ZLIB);
if (err == COMPRESSION_STATUS_ERROR)
err = Z_ERRNO;
else
err = Z_OK;
#else
err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
#endif
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
if ((err == Z_OK) && (password != NULL))
{
#ifdef HAVE_AES
if (zi->ci.method == AES_METHOD)
{
unsigned char passverify[AES_PWVERIFYSIZE];
unsigned char saltvalue[AES_MAXSALTLENGTH];
uint16_t saltlength = 0;
if ((AES_ENCRYPTIONMODE < 1) || (AES_ENCRYPTIONMODE > 3))
return Z_ERRNO;
saltlength = SALT_LENGTH(AES_ENCRYPTIONMODE);
prng_init(cryptrand, zi->ci.aes_rng);
prng_rand(saltvalue, saltlength, zi->ci.aes_rng);
prng_end(zi->ci.aes_rng);
fcrypt_init(AES_ENCRYPTIONMODE, (uint8_t *)password, (uint32_t)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.total_compressed += saltlength + AES_PWVERIFYSIZE + AES_AUTHCODESIZE;
}
else
#endif
{
unsigned char buf_head[RAND_HEAD_LEN];
uint32_t size_head = 0;
uint8_t verify1 = 0;
uint8_t verify2 = 0;
zi->ci.pcrc_32_tab = get_crc_table();
/*
Info-ZIP modification to ZipCrypto format:
If bit 3 of the general purpose bit flag is set, it uses high byte of 16-bit File Time.
*/
verify1 = (uint8_t)((zi->ci.dos_date >> 16) & 0xff);
verify2 = (uint8_t)((zi->ci.dos_date >> 8) & 0xff);
size_head = crypthead(password, buf_head, RAND_HEAD_LEN, zi->ci.keys, zi->ci.pcrc_32_tab, verify1, verify2);
zi->ci.total_compressed += size_head;
if (ZWRITE64(zi->z_filefunc, zi->filestream, buf_head, size_head) != size_head)
err = ZIP_ERRNO;
}
}
#endif
if (err == Z_OK)
zi->in_opened_file_inzip = 1;
return err;
}
extern int ZEXPORT zipOpenNewFileInZip5(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t flag_base, int zip64, uint16_t method, int level, int raw,
int windowBits, int memLevel, int strategy, const char *password, int aes)
{
return zipOpenNewFileInZip_internal(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, flag_base, zip64, method, level, raw, windowBits, memLevel, strategy, password, aes,
VERSIONMADEBY);
}
extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t method, int level, int raw, int windowBits, int memLevel,
int strategy, const char *password, ZIP_UNUSED uint32_t crc_for_crypting, uint16_t version_madeby, uint16_t flag_base, int zip64)
{
uint8_t aes = 0;
#ifdef HAVE_AES
aes = 1;
#endif
return zipOpenNewFileInZip_internal(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, flag_base, zip64, method, level, raw, windowBits, memLevel, strategy, password, aes,
version_madeby);
}
extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t method, int level, int raw, int windowBits,
int memLevel, int strategy, const char *password, ZIP_UNUSED uint32_t crc_for_crypting, uint16_t version_madeby, uint16_t flag_base)
{
return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, method, level, raw, windowBits, memLevel,
strategy, password, crc_for_crypting, version_madeby, flag_base, 0);
}
extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t method, int level, int raw, int windowBits,
int memLevel, int strategy, const char *password, ZIP_UNUSED uint32_t crc_for_crypting)
{
return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, method, level, raw, windowBits, memLevel,
strategy, password, crc_for_crypting, VERSIONMADEBY, 0, 0);
}
extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t method, int level, int raw, int windowBits,
int memLevel, int strategy, const char *password, ZIP_UNUSED uint32_t crc_for_crypting, 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, crc_for_crypting, VERSIONMADEBY, 0, zip64);
}
extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t 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, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t 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, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t 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, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t 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 */
static int zipFlushWriteBuffer(zip64_internal *zi)
{
uint64_t size_available = 0;
uint32_t written = 0;
uint32_t total_written = 0;
uint32_t write = 0;
uint32_t max_write = 0;
int err = ZIP_OK;
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
{
uint32_t i = 0;
uint8_t t = 0;
for (i = 0; i < zi->ci.pos_in_buffered_data; i++)
zi->ci.buffered_data[i] = (uint8_t)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)
{
zipGetDiskSizeAvailable((zipFile)zi, &size_available);
if (size_available == 0)
{
err = zipGoToNextDisk((zipFile)zi);
if (err != ZIP_OK)
return err;
}
if (size_available < (uint64_t)max_write)
max_write = (uint32_t)size_available;
}
written = ZWRITE64(zi->z_filefunc, zi->filestream, zi->ci.buffered_data + total_written, max_write);
if (written != max_write)
{
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, uint32_t len)
{
zip64_internal *zi = NULL;
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 = (uint32_t)crc32(zi->ci.crc32, buf, 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)
{
err = zipFlushWriteBuffer(zi);
zi->ci.bstream.avail_out = (uint16_t)Z_BUFSIZE;
zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
}
else
{
uint32_t total_out_before_lo = zi->ci.bstream.total_out_lo32;
uint32_t total_out_before_hi = zi->ci.bstream.total_out_hi32;
err = BZ2_bzCompress(&zi->ci.bstream, BZ_RUN);
zi->ci.pos_in_buffered_data += (uint16_t)(zi->ci.bstream.total_out_lo32 - total_out_before_lo);
}
}
if (err == BZ_RUN_OK)
err = ZIP_OK;
}
else
#endif
{
zi->ci.stream.next_in = (uint8_t*)buf;
zi->ci.stream.avail_in = len;
while ((err == ZIP_OK) && (zi->ci.stream.avail_in > 0))
{
if (zi->ci.stream.avail_out == 0)
{
err = zipFlushWriteBuffer(zi);
zi->ci.stream.avail_out = 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))
{
#ifdef HAVE_APPLE_COMPRESSION
uint32_t total_out_before = (uint32_t)zi->ci.stream.total_out;
zi->ci.astream.src_ptr = zi->ci.stream.next_in;
zi->ci.astream.src_size = zi->ci.stream.avail_in;
zi->ci.astream.dst_ptr = zi->ci.stream.next_out;
zi->ci.astream.dst_size = zi->ci.stream.avail_out;
compression_status status = 0;
compression_stream_flags flags = 0;
status = compression_stream_process(&zi->ci.astream, flags);
uint32_t total_out_after = len - zi->ci.astream.src_size;
zi->ci.stream.next_in = zi->ci.astream.src_ptr;
zi->ci.stream.avail_in = zi->ci.astream.src_size;
zi->ci.stream.next_out = zi->ci.astream.dst_ptr;
zi->ci.stream.avail_out = zi->ci.astream.dst_size;
zi->ci.stream.total_in += total_out_after;
//zi->ci.stream.total_out += copy_this;
zi->ci.pos_in_buffered_data += total_out_after;
if (status == COMPRESSION_STATUS_ERROR)
err = ZIP_INTERNALERROR;
#else
uint32_t total_out_before = (uint32_t)zi->ci.stream.total_out;
err = deflate(&zi->ci.stream, Z_NO_FLUSH);
zi->ci.pos_in_buffered_data += (uint32_t)(zi->ci.stream.total_out - total_out_before);
#endif
}
else
{
uint32_t copy_this = 0;
uint32_t i = 0;
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 zipCloseFileInZipRaw64(zipFile file, uint64_t uncompressed_size, uint32_t crc32)
{
zip64_internal *zi = NULL;
uint16_t extra_data_size = 0;
uint32_t i = 0;
unsigned char *extra_info = NULL;
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)
{
uint32_t total_out_before = 0;
if (zi->ci.stream.avail_out == 0)
{
err = zipFlushWriteBuffer(zi);
zi->ci.stream.avail_out = Z_BUFSIZE;
zi->ci.stream.next_out = zi->ci.buffered_data;
}
if (err != ZIP_OK)
break;
#ifdef HAVE_APPLE_COMPRESSION
total_out_before = zi->ci.stream.total_out;
zi->ci.astream.src_ptr = zi->ci.stream.next_in;
zi->ci.astream.src_size = zi->ci.stream.avail_in;
zi->ci.astream.dst_ptr = zi->ci.stream.next_out;
zi->ci.astream.dst_size = zi->ci.stream.avail_out;
compression_status status = 0;
status = compression_stream_process(&zi->ci.astream, COMPRESSION_STREAM_FINALIZE);
uint32_t total_out_after = Z_BUFSIZE - zi->ci.astream.dst_size;
zi->ci.stream.next_in = zi->ci.astream.src_ptr;
zi->ci.stream.avail_in = zi->ci.astream.src_size;
zi->ci.stream.next_out = zi->ci.astream.dst_ptr;
zi->ci.stream.avail_out = zi->ci.astream.dst_size;
//zi->ci.stream.total_in += total_out_after;
//zi->ci.stream.total_out += copy_this;
zi->ci.pos_in_buffered_data += total_out_after;
if (status == COMPRESSION_STATUS_ERROR)
{
err = ZIP_INTERNALERROR;
}
else if (status == COMPRESSION_STATUS_END)
{
err = Z_STREAM_END;
}
#else
total_out_before = (uint32_t)zi->ci.stream.total_out;
err = deflate(&zi->ci.stream, Z_FINISH);
zi->ci.pos_in_buffered_data += (uint16_t)(zi->ci.stream.total_out - total_out_before);
#endif
}
}
else if (zi->ci.compression_method == Z_BZIP2ED)
{
#ifdef HAVE_BZIP2
err = BZ_FINISH_OK;
while (err == BZ_FINISH_OK)
{
uint32_t total_out_before = 0;
if (zi->ci.bstream.avail_out == 0)
{
err = zipFlushWriteBuffer(zi);
zi->ci.bstream.avail_out = (uint16_t)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 += (uint16_t)(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))
{
err = zipFlushWriteBuffer(zi);
}
#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 = 0;
#ifdef HAVE_APPLE_COMPRESSION
tmp_err = compression_stream_destroy(&zi->ci.astream);
#else
tmp_err = deflateEnd(&zi->ci.stream);
#endif
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 = zi->ci.crc32;
uncompressed_size = zi->ci.total_uncompressed;
}
/* Write data descriptor */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)DATADESCRIPTORMAGIC, 4);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, crc32, 4);
if (err == ZIP_OK)
{
if (zi->ci.zip64)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->ci.total_compressed, 8);
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)zi->ci.total_compressed, 4);
}
if (err == ZIP_OK)
{
if (zi->ci.zip64)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)uncompressed_size, 4);
}
/* Update crc and sizes to central directory */
zipWriteValueToMemory(zi->ci.central_header + 16, crc32, 4); /* crc */
if (zi->ci.total_compressed >= UINT32_MAX)
zipWriteValueToMemory(zi->ci.central_header + 20, UINT32_MAX, 4); /* compr size */
else
zipWriteValueToMemory(zi->ci.central_header + 20, zi->ci.total_compressed, 4); /* compr size */
if (uncompressed_size >= UINT32_MAX)
zipWriteValueToMemory(zi->ci.central_header + 24, UINT32_MAX, 4); /* uncompr size */
else
zipWriteValueToMemory(zi->ci.central_header + 24, uncompressed_size, 4); /* uncompr size */
if (zi->ci.stream.data_type == Z_ASCII)
zipWriteValueToMemory(zi->ci.central_header + 36, (uint16_t)Z_ASCII, 2); /* internal file attrib */
/* Add ZIP64 extra info field for uncompressed size */
if (uncompressed_size >= UINT32_MAX)
extra_data_size += 8;
/* Add ZIP64 extra info field for compressed size */
if (zi->ci.total_compressed >= UINT32_MAX)
extra_data_size += 8;
/* Add ZIP64 extra info field for relative offset to local file header of current file */
if (zi->ci.pos_local_header >= UINT32_MAX)
extra_data_size += 8;
/* Add ZIP64 extra info header to central directory */
if (extra_data_size > 0)
{
if ((uint32_t)(extra_data_size + 4) > zi->ci.size_centralextrafree)
return ZIP_BADZIPFILE;
extra_info = (unsigned char*)zi->ci.central_header + zi->ci.size_centralheader;
zipWriteValueToMemoryAndMove(&extra_info, 0x0001, 2);
zipWriteValueToMemoryAndMove(&extra_info, extra_data_size, 2);
if (uncompressed_size >= UINT32_MAX)
zipWriteValueToMemoryAndMove(&extra_info, uncompressed_size, 8);
if (zi->ci.total_compressed >= UINT32_MAX)
zipWriteValueToMemoryAndMove(&extra_info, zi->ci.total_compressed, 8);
if (zi->ci.pos_local_header >= UINT32_MAX)
zipWriteValueToMemoryAndMove(&extra_info, zi->ci.pos_local_header, 8);
zi->ci.size_centralextrafree -= extra_data_size + 4;
zi->ci.size_centralheader += extra_data_size + 4;
zi->ci.size_centralextra += extra_data_size + 4;
zipWriteValueToMemory(zi->ci.central_header + 30, zi->ci.size_centralextra, 2);
}
#ifdef HAVE_AES
/* Write AES extra info header to central directory */
if (zi->ci.method == AES_METHOD)
{
extra_info = (unsigned char*)zi->ci.central_header + zi->ci.size_centralheader;
extra_data_size = 7;
if ((uint32_t)(extra_data_size + 4) > zi->ci.size_centralextrafree)
return ZIP_BADZIPFILE;
zipWriteValueToMemoryAndMove(&extra_info, 0x9901, 2);
zipWriteValueToMemoryAndMove(&extra_info, extra_data_size, 2);
zipWriteValueToMemoryAndMove(&extra_info, AES_VERSION, 2);
zipWriteValueToMemoryAndMove(&extra_info, 'A', 1);
zipWriteValueToMemoryAndMove(&extra_info, 'E', 1);
zipWriteValueToMemoryAndMove(&extra_info, AES_ENCRYPTIONMODE, 1);
zipWriteValueToMemoryAndMove(&extra_info, zi->ci.compression_method, 2);
zi->ci.size_centralextrafree -= extra_data_size + 4;
zi->ci.size_centralheader += extra_data_size + 4;
zi->ci.size_centralextra += extra_data_size + 4;
zipWriteValueToMemory(zi->ci.central_header + 30, 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, zi->ci.size_centralheader);
free(zi->ci.central_header);
zi->number_entry++;
zi->in_opened_file_inzip = 0;
return err;
}
extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uint32_t uncompressed_size, uint32_t crc32)
{
return zipCloseFileInZipRaw64(file, uncompressed_size, crc32);
}
extern int ZEXPORT zipCloseFileInZip(zipFile file)
{
return zipCloseFileInZipRaw(file, 0, 0);
}
extern int ZEXPORT zipClose(zipFile file, const char *global_comment)
{
return zipClose_64(file, global_comment);
}
extern int ZEXPORT zipClose_64(zipFile file, const char *global_comment)
{
return zipClose2_64(file, global_comment, VERSIONMADEBY);
}
extern int ZEXPORT zipClose2_64(zipFile file, const char *global_comment, uint16_t version_madeby)
{
zip64_internal *zi = NULL;
uint32_t size_centraldir = 0;
uint16_t size_global_comment = 0;
uint64_t centraldir_pos_inzip = 0;
uint64_t pos = 0;
uint64_t cd_pos = 0;
uint32_t write = 0;
int err = ZIP_OK;
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 >= UINT32_MAX || zi->number_entry > UINT16_MAX)
{
uint64_t zip64_eocd_pos_inzip = ZTELL64(zi->z_filefunc, zi->filestream);
uint32_t zip64_datasize = 44;
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)ZIP64ENDHEADERMAGIC, 4);
/* Size of this 'zip64 end of central directory' */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint64_t)zip64_datasize, 8);
/* Version made by */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, version_madeby, 2);
/* version needed */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)45, 2);
/* Number of this disk */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_disk_with_CD, 4);
/* Number of the disk with the start of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_disk_with_CD, 4);
/* Total number of entries in the central dir on this disk */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
/* Total number of entries in the central dir */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
/* Size of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint64_t)size_centraldir, 8);
if (err == ZIP_OK)
{
/* Offset of start of central directory with respect to the starting disk number */
cd_pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
err = zipWriteValue(&zi->z_filefunc, zi->filestream, cd_pos, 8);
}
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)ZIP64ENDLOCHEADERMAGIC, 4);
/* Number of the disk with the start of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_disk_with_CD, 4);
/* Relative offset to the Zip64EndOfCentralDirectory */
if (err == ZIP_OK)
{
cd_pos = zip64_eocd_pos_inzip - zi->add_position_when_writting_offset;
err = zipWriteValue(&zi->z_filefunc, zi->filestream, cd_pos, 8);
}
/* Number of the disk with the start of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, zi->number_disk_with_CD + 1, 4);
}
/* Write the central directory header */
/* Signature */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)ENDHEADERMAGIC, 4);
/* Number of this disk */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)zi->number_disk_with_CD, 2);
/* Number of the disk with the start of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)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 >= UINT16_MAX)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, UINT16_MAX, 2); /* use value in ZIP64 record */
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)zi->number_entry, 2);
}
/* Total number of entries in the central dir */
if (err == ZIP_OK)
{
if (zi->number_entry >= UINT16_MAX)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, UINT16_MAX, 2); /* use value in ZIP64 record */
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint16_t)zi->number_entry, 2);
}
/* Size of the central directory */
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, size_centraldir, 4);
/* Offset of start of central directory with respect to the starting disk number */
if (err == ZIP_OK)
{
cd_pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
if (pos >= UINT32_MAX)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, UINT32_MAX, 4);
else
err = zipWriteValue(&zi->z_filefunc, zi->filestream, (uint32_t)cd_pos, 4);
}
/* Write global comment */
if (global_comment != NULL)
size_global_comment = (uint16_t)strlen(global_comment);
if (err == ZIP_OK)
err = zipWriteValue(&zi->z_filefunc, zi->filestream, 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;
}
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