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@DirtBagXon
DirtBagXon committed Oct 19, 2024
1 parent 25810de commit cdffc74
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Showing 9 changed files with 1,922 additions and 1,169 deletions.
29 changes: 13 additions & 16 deletions Src/Pkgs/crypt.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -32,21 +32,20 @@
/***********************************************************************
* Return the next byte in the pseudo-random sequence
*/
static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
{
static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
* unpredictable manner on 16-bit systems; not a problem
* with any known compiler so far, though */

(void)pcrc_32_tab;
temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
}

/***********************************************************************
* Update the encryption keys with the next byte of plain text
*/
static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
{
static int update_keys(unsigned long* pkeys, const z_crc_t* pcrc_32_tab, int c) {
(*(pkeys+0)) = CRC32((*(pkeys+0)), c);
(*(pkeys+1)) += (*(pkeys+0)) & 0xff;
(*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
Expand All @@ -62,8 +61,7 @@ static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
* Initialize the encryption keys and the random header according to
* the given password.
*/
static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
{
static void init_keys(const char* passwd, unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
*(pkeys+0) = 305419896L;
*(pkeys+1) = 591751049L;
*(pkeys+2) = 878082192L;
Expand All @@ -77,24 +75,23 @@ static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcr
(update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))

#define zencode(pkeys,pcrc_32_tab,c,t) \
(t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
(t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), (Byte)t^(c))

#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED

#define RAND_HEAD_LEN 12
/* "last resort" source for second part of crypt seed pattern */
# ifndef ZCR_SEED2
# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
# endif

static int crypthead(const char* passwd, /* password string */
unsigned char* buf, /* where to write header */
int bufSize,
unsigned long* pkeys,
const z_crc_t* pcrc_32_tab,
unsigned long crcForCrypting)
{
int n; /* index in random header */
static unsigned crypthead(const char* passwd, /* password string */
unsigned char* buf, /* where to write header */
int bufSize,
unsigned long* pkeys,
const z_crc_t* pcrc_32_tab,
unsigned long crcForCrypting) {
unsigned n; /* index in random header */
int t; /* temporary */
int c; /* random byte */
unsigned char header[RAND_HEAD_LEN-2]; /* random header */
Expand Down
78 changes: 31 additions & 47 deletions Src/Pkgs/ioapi.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
#define _CRT_SECURE_NO_WARNINGS
#endif

#if defined(__APPLE__) || defined(IOAPI_NO_64)
#if defined(__APPLE__) || defined(IOAPI_NO_64) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
#define FTELLO_FUNC(stream) ftello(stream)
Expand All @@ -28,8 +28,7 @@

#include "ioapi.h"

voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
{
voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc, const void*filename, int mode) {
if (pfilefunc->zfile_func64.zopen64_file != NULL)
return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
else
Expand All @@ -38,8 +37,7 @@ voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename
}
}

long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
{
long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) {
if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
else
Expand All @@ -52,25 +50,22 @@ long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZP
}
}

ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
{
ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc, voidpf filestream) {
if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
else
{
uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
if ((tell_uLong) == MAXU32)
return (ZPOS64_T)-1;
else
return tell_uLong;
}
}

void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
{
void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32, const zlib_filefunc_def* p_filefunc32) {
p_filefunc64_32->zfile_func64.zopen64_file = NULL;
p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
p_filefunc64_32->zfile_func64.ztell64_file = NULL;
Expand All @@ -84,18 +79,10 @@ void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filef



static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));

static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
{
static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char* filename, int mode) {
FILE* file = NULL;
const char* mode_fopen = NULL;
(void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb";
else
Expand All @@ -110,10 +97,10 @@ static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, in
return file;
}

static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
{
static voidpf ZCALLBACK fopen64_file_func(voidpf opaque, const void* filename, int mode) {
FILE* file = NULL;
const char* mode_fopen = NULL;
(void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb";
else
Expand All @@ -129,39 +116,39 @@ static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename,
}


static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
{
static uLong ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uLong size) {
uLong ret;
(void)opaque;
ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}

static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
{
static uLong ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size) {
uLong ret;
(void)opaque;
ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}

static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
{
static long ZCALLBACK ftell_file_func(voidpf opaque, voidpf stream) {
long ret;
(void)opaque;
ret = ftell((FILE *)stream);
return ret;
}


static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
{
static ZPOS64_T ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream) {
ZPOS64_T ret;
ret = FTELLO_FUNC((FILE *)stream);
(void)opaque;
ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
return ret;
}

static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
{
static long ZCALLBACK fseek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) {
int fseek_origin=0;
long ret;
(void)opaque;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
Expand All @@ -176,15 +163,15 @@ static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offs
default: return -1;
}
ret = 0;
if (fseek((FILE *)stream, offset, fseek_origin) != 0)
if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
ret = -1;
return ret;
}

static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
{
static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) {
int fseek_origin=0;
long ret;
(void)opaque;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
Expand All @@ -200,30 +187,28 @@ static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T
}
ret = 0;

if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
if(FSEEKO_FUNC((FILE *)stream, (z_off64_t)offset, fseek_origin) != 0)
ret = -1;

return ret;
}


static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
{
static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream) {
int ret;
(void)opaque;
ret = fclose((FILE *)stream);
return ret;
}

static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
{
static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream) {
int ret;
(void)opaque;
ret = ferror((FILE *)stream);
return ret;
}

void fill_fopen_filefunc (pzlib_filefunc_def)
zlib_filefunc_def* pzlib_filefunc_def;
{
void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def) {
pzlib_filefunc_def->zopen_file = fopen_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;
Expand All @@ -234,8 +219,7 @@ void fill_fopen_filefunc (pzlib_filefunc_def)
pzlib_filefunc_def->opaque = NULL;
}

void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
{
void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def) {
pzlib_filefunc_def->zopen64_file = fopen64_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;
Expand Down
46 changes: 24 additions & 22 deletions Src/Pkgs/ioapi.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@
#define ftello64 ftell
#define fseeko64 fseek
#else
#ifdef __FreeBSD__
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
#define fopen64 fopen
#define ftello64 ftello
#define fseeko64 fseeko
Expand Down Expand Up @@ -82,7 +82,7 @@
#include "mz64conf.h"
#endif

/* a type choosen by DEFINE */
/* a type chosen by DEFINE */
#ifdef HAVE_64BIT_INT_CUSTOM
typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
#else
Expand All @@ -91,8 +91,7 @@ typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
typedef uint64_t ZPOS64_T;
#else

/* Maximum unsigned 32-bit value used as placeholder for zip64 */
#define MAXU32 0xffffffff


#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef unsigned __int64 ZPOS64_T;
Expand All @@ -102,7 +101,10 @@ typedef unsigned long long int ZPOS64_T;
#endif
#endif


/* Maximum unsigned 32-bit value used as placeholder for zip64 */
#ifndef MAXU32
#define MAXU32 (0xffffffff)
#endif

#ifdef __cplusplus
extern "C" {
Expand Down Expand Up @@ -132,17 +134,17 @@ extern "C" {



typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
typedef voidpf (ZCALLBACK *open_file_func) (voidpf opaque, const char* filename, int mode);
typedef uLong (ZCALLBACK *read_file_func) (voidpf opaque, voidpf stream, void* buf, uLong size);
typedef uLong (ZCALLBACK *write_file_func) (voidpf opaque, voidpf stream, const void* buf, uLong size);
typedef int (ZCALLBACK *close_file_func) (voidpf opaque, voidpf stream);
typedef int (ZCALLBACK *testerror_file_func) (voidpf opaque, voidpf stream);

typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
typedef long (ZCALLBACK *tell_file_func) (voidpf opaque, voidpf stream);
typedef long (ZCALLBACK *seek_file_func) (voidpf opaque, voidpf stream, uLong offset, int origin);


/* here is the "old" 32 bits structure structure */
/* here is the "old" 32 bits structure */
typedef struct zlib_filefunc_def_s
{
open_file_func zopen_file;
Expand All @@ -155,9 +157,9 @@ typedef struct zlib_filefunc_def_s
voidpf opaque;
} zlib_filefunc_def;

typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
typedef ZPOS64_T (ZCALLBACK *tell64_file_func) (voidpf opaque, voidpf stream);
typedef long (ZCALLBACK *seek64_file_func) (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin);
typedef voidpf (ZCALLBACK *open64_file_func) (voidpf opaque, const void* filename, int mode);

typedef struct zlib_filefunc64_def_s
{
Expand All @@ -171,8 +173,8 @@ typedef struct zlib_filefunc64_def_s
voidpf opaque;
} zlib_filefunc64_def;

void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def);
void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def);

/* now internal definition, only for zip.c and unzip.h */
typedef struct zlib_filefunc64_32_def_s
Expand All @@ -191,11 +193,11 @@ typedef struct zlib_filefunc64_32_def_s
#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream))
#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream))

voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
voidpf call_zopen64(const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode);
long call_zseek64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin);
ZPOS64_T call_ztell64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream);

void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);

#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode)))
#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
Expand Down
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