From 15443f9d35d8872a898a98e0b6099abf790c55cd Mon Sep 17 00:00:00 2001 From: dinkc64 Date: Sat, 28 Sep 2024 09:11:23 -0400 Subject: [PATCH] update minizip, note: maybe this should be moved to libs/zlib? --- src/burner/crypt.h | 128 ++++++++++ src/burner/ints.h | 57 +++++ src/burner/ioapi.c | 94 ++++---- src/burner/ioapi.h | 86 +++---- src/burner/unzip.c | 576 +++++++++++++++++---------------------------- src/burner/unzip.h | 158 +++++++------ 6 files changed, 558 insertions(+), 541 deletions(-) create mode 100644 src/burner/crypt.h create mode 100644 src/burner/ints.h diff --git a/src/burner/crypt.h b/src/burner/crypt.h new file mode 100644 index 0000000000..f4b93b78dc --- /dev/null +++ b/src/burner/crypt.h @@ -0,0 +1,128 @@ +/* crypt.h -- base code for crypt/uncrypt ZIPfile + + + Version 1.01e, February 12th, 2005 + + Copyright (C) 1998-2005 Gilles Vollant + + This code is a modified version of crypting code in Infozip distribution + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + If you don't need crypting in your application, just define symbols + NOCRYPT and NOUNCRYPT. + + This code support the "Traditional PKWARE Encryption". + + The new AES encryption added on Zip format by Winzip (see the page + http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong + Encryption is not supported. +*/ + +#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) + +/*********************************************************************** + * Return the next byte in the pseudo-random sequence + */ +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) { + (*(pkeys+0)) = CRC32((*(pkeys+0)), c); + (*(pkeys+1)) += (*(pkeys+0)) & 0xff; + (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; + { + register int keyshift = (int)((*(pkeys+1)) >> 24); + (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift); + } + return 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) { + *(pkeys+0) = 305419896L; + *(pkeys+1) = 591751049L; + *(pkeys+2) = 878082192L; + while (*passwd != '\0') { + update_keys(pkeys,pcrc_32_tab,(int)*passwd); + passwd++; + } +} + +#define zdecode(pkeys,pcrc_32_tab,c) \ + (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), (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 */ +# endif + +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 */ + static unsigned calls = 0; /* ensure different random header each time */ + + if (bufSize> 7) & 0xff; + header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t); + } + /* Encrypt random header (last two bytes is high word of crc) */ + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t); + } + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t); + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t); + return n; +} + +#endif diff --git a/src/burner/ints.h b/src/burner/ints.h new file mode 100644 index 0000000000..4c84375b21 --- /dev/null +++ b/src/burner/ints.h @@ -0,0 +1,57 @@ +/* ints.h -- create integer types for 8, 16, 32, and 64 bits + * Copyright (C) 2024 Mark Adler + * For conditions of distribution and use, see the copyright notice in zlib.h + * + * There exist compilers with limits.h, but not stdint.h or inttypes.h. + */ + +#ifndef INTS_H +#define INTS_H +#include +#if defined(UCHAR_MAX) && UCHAR_MAX == 0xff + typedef signed char i8_t; + typedef unsigned char ui8_t; +#else +# error "no 8-bit integer" +#endif +#if defined(USHRT_MAX) && USHRT_MAX == 0xffff + typedef short i16_t; + typedef unsigned short ui16_t; +#elif defined(UINT_MAX) && UINT_MAX == 0xffff + typedef int i16_t; + typedef unsigned ui16_t; +#else +# error "no 16-bit integer" +#endif +#if defined(UINT_MAX) && UINT_MAX == 0xffffffff + typedef int i32_t; + typedef unsigned ui32_t; +# define PI32 "d" +# define PUI32 "u" +#elif defined(ULONG_MAX) && ULONG_MAX == 0xffffffff + typedef long i32_t; + typedef unsigned long ui32_t; +# define PI32 "ld" +# define PUI32 "lu" +#else +# error "no 32-bit integer" +#endif +#if defined(ULONG_MAX) && ULONG_MAX == 0xffffffffffffffff + typedef long i64_t; + typedef unsigned long ui64_t; +# define PI64 "ld" +# define PUI64 "lu" +#elif defined(ULLONG_MAX) && ULLONG_MAX == 0xffffffffffffffff + typedef long long i64_t; + typedef unsigned long long ui64_t; +# define PI64 "lld" +# define PUI64 "llu" +#elif defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 0xffffffffffffffff + typedef long long i64_t; + typedef unsigned long long ui64_t; +# define PI64 "lld" +# define PUI64 "llu" +#else +# error "no 64-bit integer" +#endif +#endif diff --git a/src/burner/ioapi.c b/src/burner/ioapi.c index 49958f61ff..782d32469a 100644 --- a/src/burner/ioapi.c +++ b/src/burner/ioapi.c @@ -10,14 +10,25 @@ */ -#if (defined(_WIN32)) +#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS))) #define _CRT_SECURE_NO_WARNINGS #endif +#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) +#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin) +#else +#define FOPEN_FUNC(filename, mode) fopen64(filename, mode) +#define FTELLO_FUNC(stream) ftello64(stream) +#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin) +#endif + + #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 @@ -26,8 +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 @@ -40,25 +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); - if ((tell_uLong) == ((uLong)-1)) + 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; @@ -72,18 +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 @@ -98,10 +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 @@ -112,44 +111,44 @@ static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, mode_fopen = "wb"; if ((filename!=NULL) && (mode_fopen != NULL)) - file = fopen64((const char*)filename, mode_fopen); + file = FOPEN_FUNC((const char*)filename, mode_fopen); return file; } -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 = ftello64((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 : @@ -164,15 +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 : @@ -188,30 +187,28 @@ static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T } ret = 0; - if(fseeko64((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; @@ -222,8 +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; diff --git a/src/burner/ioapi.h b/src/burner/ioapi.h index 5adb3f2966..f3b193d803 100644 --- a/src/burner/ioapi.h +++ b/src/burner/ioapi.h @@ -18,10 +18,10 @@ */ -#ifndef _ZLIBIOAPI64_H -#define _ZLIBIOAPI64_H +#ifndef ZLIBIOAPI64_H +#define ZLIBIOAPI64_H -#if (!defined(_WIN32)) && (!defined(WIN32)) +#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__)) // Linux needs this to support file operation on files larger then 4+GB // But might need better if/def to select just the platforms that needs them. @@ -38,24 +38,23 @@ #ifndef _FILE_OFFSET_BIT #define _FILE_OFFSET_BIT 64 #endif + #endif #include #include #include "zlib.h" -#ifdef __LIBRETRO__ - #include "streams/file_stream_transforms.h" - #ifndef USE_FILE32API - #define USE_FILE32API - #endif -#endif - #if defined(USE_FILE32API) #define fopen64 fopen #define ftello64 ftell #define fseeko64 fseek #else +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64) +#define fopen64 fopen +#define ftello64 ftello +#define fseeko64 fseeko +#endif #ifdef _MSC_VER #define fopen64 fopen #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) @@ -68,40 +67,17 @@ #endif #endif -/* -#ifndef ZPOS64_T - #ifdef _WIN32 - #define ZPOS64_T fpos_t - #else - #include - #define ZPOS64_T uint64_t - #endif -#endif -*/ - #ifdef HAVE_MINIZIP64_CONF_H #include "mz64conf.h" #endif -/* a type choosen by DEFINE */ -#ifdef HAVE_64BIT_INT_CUSTOM -typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T; -#else -#ifdef HAS_STDINT_H -#include "stdint.h" -typedef uint64_t ZPOS64_T; -#else +#include "ints.h" +typedef ui64_t ZPOS64_T; - -#if defined(_MSC_VER) || defined(__BORLANDC__) -typedef unsigned __int64 ZPOS64_T; -#else -typedef unsigned long long int ZPOS64_T; +/* Maximum unsigned 32-bit value used as placeholder for zip64 */ +#ifndef MAXU32 +#define MAXU32 (0xffffffff) #endif -#endif -#endif - - #ifdef __cplusplus extern "C" { @@ -131,17 +107,17 @@ 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; @@ -154,9 +130,9 @@ 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 { @@ -170,8 +146,8 @@ 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 @@ -190,11 +166,11 @@ 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))) diff --git a/src/burner/unzip.c b/src/burner/unzip.c index 7617f41f1c..a2ee14bdd4 100644 --- a/src/burner/unzip.c +++ b/src/burner/unzip.c @@ -49,12 +49,12 @@ Copyright (C) 2007-2008 Even Rouault - Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again). + Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again). Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G should only read the compressed/uncompressed size from the Zip64 format if the size from normal header was 0xFFFFFFFF - Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant - Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required) + Oct-2009 - Mathias Svensson - Applied some bug fixes from patches received from Gilles Vollant + Oct-2009 - Mathias Svensson - Applied support to unzip files with compression method BZIP2 (bzip2 lib is required) Patch created by Daniel Borca Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer @@ -68,17 +68,11 @@ #include #include -#ifndef NOUNCRYPT - #define NOUNCRYPT -#endif - #include "zlib.h" #include "unzip.h" #ifdef STDC # include -# include -# include #endif #ifdef NO_ERRNO_H extern int errno; @@ -94,7 +88,7 @@ #ifndef CASESENSITIVITYDEFAULT_NO -# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) +# if (!defined(__unix__) && !defined(__unix) || defined(__CYGWIN__)) && !defined(CASESENSITIVITYDEFAULT_YES) # define CASESENSITIVITYDEFAULT_NO # endif #endif @@ -111,9 +105,6 @@ #ifndef ALLOC # define ALLOC(size) (malloc(size)) #endif -#ifndef TRYFREE -# define TRYFREE(p) {if (p) free(p);} -#endif #define SIZECENTRALDIRITEM (0x2e) #define SIZEZIPLOCALHEADER (0x1e) @@ -122,7 +113,7 @@ const char unz_copyright[] = " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; -/* unz_file_info_interntal contain internal info about a file in zipfile*/ +/* unz_file_info64_internal contain internal info about a file in zipfile*/ typedef struct unz_file_info64_internal_s { ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ @@ -153,7 +144,7 @@ typedef struct ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ zlib_filefunc64_32_def z_filefunc; - voidpf filestream; /* io structore of the zipfile */ + voidpf filestream; /* io structure of the zipfile */ uLong compression_method; /* compression method (0==store) */ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ int raw; @@ -166,7 +157,7 @@ typedef struct { zlib_filefunc64_32_def z_filefunc; int is64bitOpenFunction; - voidpf filestream; /* io structore of the zipfile */ + voidpf filestream; /* io structure of the zipfile */ unz_global_info64 gi; /* public global information */ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ ZPOS64_T num_file; /* number of the current file in the zipfile*/ @@ -188,7 +179,7 @@ typedef struct # ifndef NOUNCRYPT unsigned long keys[3]; /* keys defining the pseudo-random sequence */ - const unsigned long* pcrc_32_tab; + const z_crc_t* pcrc_32_tab; # endif } unz64_s; @@ -197,29 +188,24 @@ typedef struct #include "crypt.h" #endif + /* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. + Reads a long in LSB order from the given gz_stream. Sets */ - -local int unz64local_getByte OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - int *pi)); - -local int unz64local_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) +local int unz64local_getShort(const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX) { + unsigned char c[2]; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,2); + if (err==2) { - *pi = (int)c; + *pX = c[0] | ((uLong)c[1] << 8); return UNZ_OK; } else { + *pX = 0; if (ZERROR64(*pzlib_filefunc_def,filestream)) return UNZ_ERRNO; else @@ -227,127 +213,50 @@ local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, v } } - -/* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets -*/ -local int unz64local_getShort OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - uLong *pX)); - -local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, +local int unz64local_getLong(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, - uLong *pX) -{ - uLong x ; - int i = 0; - int err; - - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x = (uLong)i; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((uLong)i)<<8; - - if (err==UNZ_OK) - *pX = x; - else - *pX = 0; - return err; -} - -local int unz64local_getLong OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - uLong *pX)); - -local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - uLong *pX) -{ - uLong x ; - int i = 0; - int err; - - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x = (uLong)i; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((uLong)i)<<8; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((uLong)i)<<16; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x += ((uLong)i)<<24; - - if (err==UNZ_OK) - *pX = x; + uLong *pX) { + unsigned char c[4]; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,4); + if (err==4) + { + *pX = c[0] | ((uLong)c[1] << 8) | ((uLong)c[2] << 16) | ((uLong)c[3] << 24); + return UNZ_OK; + } else + { *pX = 0; - return err; + if (ZERROR64(*pzlib_filefunc_def,filestream)) + return UNZ_ERRNO; + else + return UNZ_EOF; + } } -local int unz64local_getLong64 OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - ZPOS64_T *pX)); - - -local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - ZPOS64_T *pX) -{ - ZPOS64_T x ; - int i = 0; - int err; - - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x = (ZPOS64_T)i; - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<8; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<16; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<24; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<32; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<40; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<48; - - if (err==UNZ_OK) - err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); - x |= ((ZPOS64_T)i)<<56; - - if (err==UNZ_OK) - *pX = x; +local int unz64local_getLong64(const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + ZPOS64_T *pX) { + unsigned char c[8]; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,8); + if (err==8) + { + *pX = c[0] | ((ZPOS64_T)c[1] << 8) | ((ZPOS64_T)c[2] << 16) | ((ZPOS64_T)c[3] << 24) + | ((ZPOS64_T)c[4] << 32) | ((ZPOS64_T)c[5] << 40) | ((ZPOS64_T)c[6] << 48) | ((ZPOS64_T)c[7] << 56); + return UNZ_OK; + } else + { *pX = 0; - return err; + if (ZERROR64(*pzlib_filefunc_def,filestream)) + return UNZ_ERRNO; + else + return UNZ_EOF; + } } /* My own strcmpi / strcasecmp */ -local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2) -{ +local int strcmpcasenosensitive_internal(const char* fileName1, const char* fileName2) { for (;;) { char c1=*(fileName1++); @@ -379,19 +288,17 @@ local int strcmpcasenosensitive_internal (const char* fileName1, const char* fil #endif /* - Compare two filename (fileName1,fileName2). - If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) - If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + Compare two filenames (fileName1,fileName2). + If iCaseSensitivity = 1, comparison is case sensitive (like strcmp) + If iCaseSensitivity = 2, comparison is not case sensitive (like strcmpi or strcasecmp) - If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + If iCaseSensitivity = 0, case sensitivity is default of your operating system (like 1 on Unix, 2 on Windows) */ extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, - const char* fileName2, - int iCaseSensitivity) - -{ + const char* fileName2, + int iCaseSensitivity) { if (iCaseSensitivity==0) iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; @@ -405,21 +312,23 @@ extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, #define BUFREADCOMMENT (0x400) #endif +#ifndef CENTRALDIRINVALID +#define CENTRALDIRINVALID ((ZPOS64_T)(-1)) +#endif + /* Locate the Central directory of a zipfile (at the end, just before the global comment) */ -local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); -local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) -{ +local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) { unsigned char* buf; ZPOS64_T uSizeFile; ZPOS64_T uBackRead; ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ - ZPOS64_T uPosFound=0; + ZPOS64_T uPosFound=CENTRALDIRINVALID; if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) - return 0; + return CENTRALDIRINVALID; uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); @@ -429,7 +338,7 @@ local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_f buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); if (buf==NULL) - return 0; + return CENTRALDIRINVALID; uBackRead = 4; while (uBackReadz_filefunc, s->filestream); - TRYFREE(s); + free(s); return UNZ_OK; } @@ -825,8 +723,7 @@ extern int ZEXPORT unzClose (unzFile file) Write info about the ZipFile in the *pglobal_info structure. No preparation of the structure is needed return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info) -{ +extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64* pglobal_info) { unz64_s* s; if (file==NULL) return UNZ_PARAMERROR; @@ -835,8 +732,7 @@ extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_ return UNZ_OK; } -extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32) -{ +extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info* pglobal_info32) { unz64_s* s; if (file==NULL) return UNZ_PARAMERROR; @@ -847,46 +743,33 @@ extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info return UNZ_OK; } /* - Translate date/time from Dos format to tm_unz (readable more easilty) + Translate date/time from Dos format to tm_unz (readable more easily) */ -local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm) -{ +local void unz64local_DosDateToTmuDate(ZPOS64_T ulDosDate, tm_unz* ptm) { ZPOS64_T uDate; uDate = (ZPOS64_T)(ulDosDate>>16); - ptm->tm_mday = (uInt)(uDate&0x1f) ; - ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ; - ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ; + ptm->tm_mday = (int)(uDate&0x1f) ; + ptm->tm_mon = (int)((((uDate)&0x1E0)/0x20)-1) ; + ptm->tm_year = (int)(((uDate&0x0FE00)/0x0200)+1980) ; - ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800); - ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ; - ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ; + ptm->tm_hour = (int) ((ulDosDate &0xF800)/0x800); + ptm->tm_min = (int) ((ulDosDate&0x7E0)/0x20) ; + ptm->tm_sec = (int) (2*(ulDosDate&0x1f)) ; } /* Get Info about the current file in the zipfile, with internal only info */ -local int unz64local_GetCurrentFileInfoInternal OF((unzFile file, - unz_file_info64 *pfile_info, - unz_file_info64_internal - *pfile_info_internal, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); - -local int unz64local_GetCurrentFileInfoInternal (unzFile file, - unz_file_info64 *pfile_info, - unz_file_info64_internal - *pfile_info_internal, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize) -{ +local int unz64local_GetCurrentFileInfoInternal(unzFile file, + unz_file_info64 *pfile_info, + unz_file_info64_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize) { unz64_s* s; unz_file_info64 file_info; unz_file_info64_internal file_info_internal; @@ -993,7 +876,7 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, if (lSeek!=0) { - if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) lSeek=0; else err=UNZ_ERRNO; @@ -1018,7 +901,7 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, if (lSeek!=0) { - if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) lSeek=0; else err=UNZ_ERRNO; @@ -1038,33 +921,31 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, /* ZIP64 extra fields */ if (headerId == 0x0001) { - uLong uL; - - if(file_info.uncompressed_size == (ZPOS64_T)(unsigned long)-1) - { - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info.compressed_size == (ZPOS64_T)(unsigned long)-1) - { - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info_internal.offset_curfile == (ZPOS64_T)(unsigned long)-1) - { - /* Relative Header offset */ - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info.disk_num_start == (unsigned long)-1) - { - /* Disk Start Number */ - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) - err=UNZ_ERRNO; - } + if(file_info.uncompressed_size == MAXU32) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.compressed_size == MAXU32) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info_internal.offset_curfile == MAXU32) + { + /* Relative Header offset */ + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.disk_num_start == 0xffff) + { + /* Disk Start Number */ + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK) + err=UNZ_ERRNO; + } } else @@ -1090,7 +971,7 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, if (lSeek!=0) { - if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) lSeek=0; else err=UNZ_ERRNO; @@ -1121,31 +1002,29 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, No preparation of the structure is needed return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file, - unz_file_info64 * pfile_info, - char * szFileName, uLong fileNameBufferSize, - void *extraField, uLong extraFieldBufferSize, - char* szComment, uLong commentBufferSize) -{ +extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, + unz_file_info64 * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) { return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL, - szFileName,fileNameBufferSize, - extraField,extraFieldBufferSize, - szComment,commentBufferSize); + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); } -extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, - unz_file_info * pfile_info, - char * szFileName, uLong fileNameBufferSize, - void *extraField, uLong extraFieldBufferSize, - char* szComment, uLong commentBufferSize) -{ +extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, + unz_file_info * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) { int err; unz_file_info64 file_info64; err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL, szFileName,fileNameBufferSize, extraField,extraFieldBufferSize, szComment,commentBufferSize); - if (err==UNZ_OK) + if ((err==UNZ_OK) && (pfile_info != NULL)) { pfile_info->version = file_info64.version; pfile_info->version_needed = file_info64.version_needed; @@ -1162,7 +1041,7 @@ extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, pfile_info->internal_fa = file_info64.internal_fa; pfile_info->external_fa = file_info64.external_fa; - pfile_info->tmu_date = file_info64.tmu_date, + pfile_info->tmu_date = file_info64.tmu_date; pfile_info->compressed_size = (uLong)file_info64.compressed_size; @@ -1175,8 +1054,7 @@ extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, Set the current file of the zipfile to the first file. return UNZ_OK if there is no problem */ -extern int ZEXPORT unzGoToFirstFile (unzFile file) -{ +extern int ZEXPORT unzGoToFirstFile(unzFile file) { int err=UNZ_OK; unz64_s* s; if (file==NULL) @@ -1196,8 +1074,7 @@ extern int ZEXPORT unzGoToFirstFile (unzFile file) return UNZ_OK if there is no problem return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. */ -extern int ZEXPORT unzGoToNextFile (unzFile file) -{ +extern int ZEXPORT unzGoToNextFile(unzFile file) { unz64_s* s; int err; @@ -1223,14 +1100,13 @@ extern int ZEXPORT unzGoToNextFile (unzFile file) /* Try locate the file szFileName in the zipfile. - For the iCaseSensitivity signification, see unzipStringFileNameCompare + For the iCaseSensitivity signification, see unzStringFileNameCompare return value : UNZ_OK if the file is found. It becomes the current file. UNZ_END_OF_LIST_OF_FILE if the file is not found */ -extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity) -{ +extern int ZEXPORT unzLocateFile(unzFile file, const char *szFileName, int iCaseSensitivity) { unz64_s* s; int err; @@ -1305,8 +1181,7 @@ typedef struct unz_file_pos_s } unz_file_pos; */ -extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) -{ +extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) { unz64_s* s; if (file==NULL || file_pos==NULL) @@ -1321,10 +1196,7 @@ extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) return UNZ_OK; } -extern int ZEXPORT unzGetFilePos( - unzFile file, - unz_file_pos* file_pos) -{ +extern int ZEXPORT unzGetFilePos(unzFile file, unz_file_pos* file_pos) { unz64_file_pos file_pos64; int err = unzGetFilePos64(file,&file_pos64); if (err==UNZ_OK) @@ -1335,8 +1207,7 @@ extern int ZEXPORT unzGetFilePos( return err; } -extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) -{ +extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) { unz64_s* s; int err; @@ -1357,10 +1228,7 @@ extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos return err; } -extern int ZEXPORT unzGoToFilePos( - unzFile file, - unz_file_pos* file_pos) -{ +extern int ZEXPORT unzGoToFilePos(unzFile file, unz_file_pos* file_pos) { unz64_file_pos file_pos64; if (file_pos == NULL) return UNZ_PARAMERROR; @@ -1382,10 +1250,9 @@ extern int ZEXPORT unzGoToFilePos( store in *piSizeVar the size of extra info in local header (filename and size of extra field data) */ -local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar, - ZPOS64_T * poffset_local_extrafield, - uInt * psize_local_extrafield) -{ +local int unz64local_CheckCurrentFileCoherencyHeader(unz64_s* s, uInt* piSizeVar, + ZPOS64_T * poffset_local_extrafield, + uInt * psize_local_extrafield) { uLong uMagic,uData,uFlags; uLong size_filename; uLong size_extra_field; @@ -1469,9 +1336,8 @@ local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVa Open for reading data the current file in the zipfile. If there is no error and the file is opened, the return value is UNZ_OK. */ -extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, - int* level, int raw, const char* password) -{ +extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int* method, + int* level, int raw, const char* password) { int err=UNZ_OK; uInt iSizeVar; unz64_s* s; @@ -1509,7 +1375,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, if (pfile_in_zip_read_info->read_buffer==NULL) { - TRYFREE(pfile_in_zip_read_info); + free(pfile_in_zip_read_info); return UNZ_INTERNALERROR; } @@ -1566,7 +1432,8 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED; else { - TRYFREE(pfile_in_zip_read_info); + free(pfile_in_zip_read_info->read_buffer); + free(pfile_in_zip_read_info); return err; } #else @@ -1586,7 +1453,8 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, pfile_in_zip_read_info->stream_initialised=Z_DEFLATED; else { - TRYFREE(pfile_in_zip_read_info); + free(pfile_in_zip_read_info->read_buffer); + free(pfile_in_zip_read_info); return err; } /* windowBits is passed < 0 to tell that there is no zlib header. @@ -1638,25 +1506,21 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, return UNZ_OK; } -extern int ZEXPORT unzOpenCurrentFile (unzFile file) -{ +extern int ZEXPORT unzOpenCurrentFile(unzFile file) { return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); } -extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password) -{ +extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char* password) { return unzOpenCurrentFile3(file, NULL, NULL, 0, password); } -extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw) -{ +extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int* method, int* level, int raw) { return unzOpenCurrentFile3(file, method, level, raw, NULL); } /** Addition for GDAL : START */ -extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) -{ +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64(unzFile file) { unz64_s* s; file_in_zip64_read_info_s* pfile_in_zip_read_info; s=(unz64_s*)file; @@ -1676,13 +1540,12 @@ extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) buf contain buffer where data must be copied len the size of buf. - return the number of byte copied if somes bytes are copied + return the number of byte copied if some bytes are copied return 0 if the end of file was reached return <0 with error code if there is an error (UNZ_ERRNO for IO error, or zLib error for uncompress error) */ -extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) -{ +extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, unsigned len) { int err=UNZ_OK; uInt iRead = 0; unz64_s* s; @@ -1696,7 +1559,7 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) return UNZ_PARAMERROR; - if ((pfile_in_zip_read_info->read_buffer == NULL)) + if (pfile_in_zip_read_info->read_buffer == NULL) return UNZ_END_OF_LIST_OF_FILE; if (len==0) return 0; @@ -1746,7 +1609,7 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) uInt i; for(i=0;iread_buffer[i] = - zdecode(s->keys,s->pcrc_32_tab, + (char)zdecode(s->keys,s->pcrc_32_tab, pfile_in_zip_read_info->read_buffer[i]); } # endif @@ -1767,7 +1630,7 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) if ((pfile_in_zip_read_info->stream.avail_in == 0) && (pfile_in_zip_read_info->rest_read_compressed == 0)) - return (iRead==0) ? UNZ_EOF : iRead; + return (iRead==0) ? UNZ_EOF : (int)iRead; if (pfile_in_zip_read_info->stream.avail_out < pfile_in_zip_read_info->stream.avail_in) @@ -1857,6 +1720,9 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) err = Z_DATA_ERROR; uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; + /* Detect overflow, because z_stream.total_out is uLong (32 bits) */ + if (uTotalOutAftertotal_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; @@ -1871,14 +1737,14 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); if (err==Z_STREAM_END) - return (iRead==0) ? UNZ_EOF : iRead; + return (iRead==0) ? UNZ_EOF : (int)iRead; if (err!=Z_OK) break; } } if (err==Z_OK) - return iRead; + return (int)iRead; return err; } @@ -1886,8 +1752,7 @@ extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) /* Give the current position in uncompressed data */ -extern z_off_t ZEXPORT unztell (unzFile file) -{ +extern z_off_t ZEXPORT unztell(unzFile file) { unz64_s* s; file_in_zip64_read_info_s* pfile_in_zip_read_info; if (file==NULL) @@ -1901,8 +1766,7 @@ extern z_off_t ZEXPORT unztell (unzFile file) return (z_off_t)pfile_in_zip_read_info->stream.total_out; } -extern ZPOS64_T ZEXPORT unztell64 (unzFile file) -{ +extern ZPOS64_T ZEXPORT unztell64(unzFile file) { unz64_s* s; file_in_zip64_read_info_s* pfile_in_zip_read_info; @@ -1921,8 +1785,7 @@ extern ZPOS64_T ZEXPORT unztell64 (unzFile file) /* return 1 if the end of file was reached, 0 elsewhere */ -extern int ZEXPORT unzeof (unzFile file) -{ +extern int ZEXPORT unzeof(unzFile file) { unz64_s* s; file_in_zip64_read_info_s* pfile_in_zip_read_info; if (file==NULL) @@ -1953,8 +1816,7 @@ more info in the local-header version than in the central-header) the return value is the number of bytes copied in buf, or (if <0) the error code */ -extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) -{ +extern int ZEXPORT unzGetLocalExtrafield(unzFile file, voidp buf, unsigned len) { unz64_s* s; file_in_zip64_read_info_s* pfile_in_zip_read_info; uInt read_now; @@ -1998,11 +1860,10 @@ extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) } /* - Close the file in zip opened with unzipOpenCurrentFile + Close the file in zip opened with unzOpenCurrentFile Return UNZ_CRCERROR if all the file was read but the CRC is not good */ -extern int ZEXPORT unzCloseCurrentFile (unzFile file) -{ +extern int ZEXPORT unzCloseCurrentFile(unzFile file) { int err=UNZ_OK; unz64_s* s; @@ -2024,7 +1885,7 @@ extern int ZEXPORT unzCloseCurrentFile (unzFile file) } - TRYFREE(pfile_in_zip_read_info->read_buffer); + free(pfile_in_zip_read_info->read_buffer); pfile_in_zip_read_info->read_buffer = NULL; if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED) inflateEnd(&pfile_in_zip_read_info->stream); @@ -2035,7 +1896,7 @@ extern int ZEXPORT unzCloseCurrentFile (unzFile file) pfile_in_zip_read_info->stream_initialised = 0; - TRYFREE(pfile_in_zip_read_info); + free(pfile_in_zip_read_info); s->pfile_in_zip_read=NULL; @@ -2048,8 +1909,7 @@ extern int ZEXPORT unzCloseCurrentFile (unzFile file) uSizeBuf is the size of the szComment buffer. return the number of byte copied or an error code <0 */ -extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf) -{ +extern int ZEXPORT unzGetGlobalComment(unzFile file, char * szComment, uLong uSizeBuf) { unz64_s* s; uLong uReadThis ; if (file==NULL) @@ -2076,8 +1936,7 @@ extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uS } /* Additions by RX '2004 */ -extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) -{ +extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) { unz64_s* s; if (file==NULL) @@ -2091,8 +1950,7 @@ extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) return s->pos_in_central_dir; } -extern uLong ZEXPORT unzGetOffset (unzFile file) -{ +extern uLong ZEXPORT unzGetOffset(unzFile file) { ZPOS64_T offset64; if (file==NULL) @@ -2101,8 +1959,7 @@ extern uLong ZEXPORT unzGetOffset (unzFile file) return (uLong)offset64; } -extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) -{ +extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) { unz64_s* s; int err; @@ -2119,7 +1976,6 @@ extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) return err; } -extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) -{ +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) { return unzSetOffset64(file,pos); } diff --git a/src/burner/unzip.h b/src/burner/unzip.h index 3183968b77..ceb614e783 100644 --- a/src/burner/unzip.h +++ b/src/burner/unzip.h @@ -83,12 +83,12 @@ typedef voidp unzFile; /* tm_unz contain date/time info */ typedef struct tm_unz_s { - uInt tm_sec; /* seconds after the minute - [0,59] */ - uInt tm_min; /* minutes after the hour - [0,59] */ - uInt tm_hour; /* hours since midnight - [0,23] */ - uInt tm_mday; /* day of the month - [1,31] */ - uInt tm_mon; /* months since January - [0,11] */ - uInt tm_year; /* years - [1980..2044] */ + int tm_sec; /* seconds after the minute - [0,59] */ + int tm_min; /* minutes after the hour - [0,59] */ + int tm_hour; /* hours since midnight - [0,23] */ + int tm_mday; /* day of the month - [1,31] */ + int tm_mon; /* months since January - [0,11] */ + int tm_year; /* years - [1980..2044] */ } tm_unz; /* unz_global_info structure contain global data about the ZIPfile @@ -150,21 +150,21 @@ typedef struct unz_file_info_s tm_unz tmu_date; } unz_file_info; -extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, - const char* fileName2, - int iCaseSensitivity)); +extern int ZEXPORT unzStringFileNameCompare(const char* fileName1, + const char* fileName2, + int iCaseSensitivity); /* - Compare two filename (fileName1,fileName2). - If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) - If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + Compare two filenames (fileName1,fileName2). + If iCaseSensitivity = 1, comparison is case sensitive (like strcmp) + If iCaseSensitivity = 2, comparison is not case sensitive (like strcmpi or strcasecmp) - If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + If iCaseSensitivity = 0, case sensitivity is default of your operating system (like 1 on Unix, 2 on Windows) */ -extern unzFile ZEXPORT unzOpen OF((const char *path)); -extern unzFile ZEXPORT unzOpen64 OF((const void *path)); +extern unzFile ZEXPORT unzOpen(const char *path); +extern unzFile ZEXPORT unzOpen64(const void *path); /* Open a Zip file. path contain the full pathname (by example, on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer @@ -181,41 +181,41 @@ extern unzFile ZEXPORT unzOpen64 OF((const void *path)); */ -extern unzFile ZEXPORT unzOpen2 OF((const char *path, - zlib_filefunc_def* pzlib_filefunc_def)); +extern unzFile ZEXPORT unzOpen2(const char *path, + zlib_filefunc_def* pzlib_filefunc_def); /* Open a Zip file, like unzOpen, but provide a set of file low level API for read/write the zip file (see ioapi.h) */ -extern unzFile ZEXPORT unzOpen2_64 OF((const void *path, - zlib_filefunc64_def* pzlib_filefunc_def)); +extern unzFile ZEXPORT unzOpen2_64(const void *path, + zlib_filefunc64_def* pzlib_filefunc_def); /* Open a Zip file, like unz64Open, but provide a set of file low level API for read/write the zip file (see ioapi.h) */ -extern int ZEXPORT unzClose OF((unzFile file)); +extern int ZEXPORT unzClose(unzFile file); /* - Close a ZipFile opened with unzipOpen. + Close a ZipFile opened with unzOpen. If there is files inside the .Zip opened with unzOpenCurrentFile (see later), - these files MUST be closed with unzipCloseCurrentFile before call unzipClose. + these files MUST be closed with unzCloseCurrentFile before call unzClose. return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, - unz_global_info *pglobal_info)); +extern int ZEXPORT unzGetGlobalInfo(unzFile file, + unz_global_info *pglobal_info); -extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file, - unz_global_info64 *pglobal_info)); +extern int ZEXPORT unzGetGlobalInfo64(unzFile file, + unz_global_info64 *pglobal_info); /* Write info about the ZipFile in the *pglobal_info structure. No preparation of the structure is needed return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalComment OF((unzFile file, - char *szComment, - uLong uSizeBuf)); +extern int ZEXPORT unzGetGlobalComment(unzFile file, + char *szComment, + uLong uSizeBuf); /* Get the global comment string of the ZipFile, in the szComment buffer. uSizeBuf is the size of the szComment buffer. @@ -226,22 +226,22 @@ extern int ZEXPORT unzGetGlobalComment OF((unzFile file, /***************************************************************************/ /* Unzip package allow you browse the directory of the zipfile */ -extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); +extern int ZEXPORT unzGoToFirstFile(unzFile file); /* Set the current file of the zipfile to the first file. return UNZ_OK if there is no problem */ -extern int ZEXPORT unzGoToNextFile OF((unzFile file)); +extern int ZEXPORT unzGoToNextFile(unzFile file); /* Set the current file of the zipfile to the next file. return UNZ_OK if there is no problem return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. */ -extern int ZEXPORT unzLocateFile OF((unzFile file, - const char *szFileName, - int iCaseSensitivity)); +extern int ZEXPORT unzLocateFile(unzFile file, + const char *szFileName, + int iCaseSensitivity); /* Try locate the file szFileName in the zipfile. For the iCaseSensitivity signification, see unzStringFileNameCompare @@ -285,40 +285,44 @@ extern int ZEXPORT unzGoToFilePos64( /* ****************************************** */ -extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file, - unz_file_info64 *pfile_info, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); - -extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, - unz_file_info *pfile_info, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); +extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, + unz_file_info64 *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize); + +extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, + unz_file_info *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize); /* Get Info about the current file - if pfile_info!=NULL, the *pfile_info structure will contain somes info about + if pfile_info!=NULL, the *pfile_info structure will contain some info about the current file - if szFileName!=NULL, the filemane string will be copied in szFileName + if szFileName!=NULL, the filename string will be copied in szFileName (fileNameBufferSize is the size of the buffer) if extraField!=NULL, the extra field information will be copied in extraField (extraFieldBufferSize is the size of the buffer). This is the Central-header version of the extra field if szComment!=NULL, the comment string of the file will be copied in szComment (commentBufferSize is the size of the buffer) + The file name and comment will be zero-terminated if there is room in the + provided buffer. Otherwise the buffer will contain as much as will fit. If at + least 65537 bytes of room is provided, then the result will always be + complete and zero-terminated. */ /** Addition for GDAL : START */ -extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file)); +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64(unzFile file); /** Addition for GDAL : END */ @@ -328,24 +332,24 @@ extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file)); from it, and close it (you can close it before reading all the file) */ -extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); +extern int ZEXPORT unzOpenCurrentFile(unzFile file); /* Open for reading data the current file in the zipfile. If there is no error, the return value is UNZ_OK. */ -extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, - const char* password)); +extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, + const char* password); /* Open for reading data the current file in the zipfile. password is a crypting password If there is no error, the return value is UNZ_OK. */ -extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, - int* method, - int* level, - int raw)); +extern int ZEXPORT unzOpenCurrentFile2(unzFile file, + int* method, + int* level, + int raw); /* Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) if raw==1 @@ -355,11 +359,11 @@ extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, but you CANNOT set method parameter as NULL */ -extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, - int* method, - int* level, - int raw, - const char* password)); +extern int ZEXPORT unzOpenCurrentFile3(unzFile file, + int* method, + int* level, + int raw, + const char* password); /* Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) if raw==1 @@ -370,41 +374,41 @@ extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, */ -extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); +extern int ZEXPORT unzCloseCurrentFile(unzFile file); /* Close the file in zip opened with unzOpenCurrentFile Return UNZ_CRCERROR if all the file was read but the CRC is not good */ -extern int ZEXPORT unzReadCurrentFile OF((unzFile file, - voidp buf, - unsigned len)); +extern int ZEXPORT unzReadCurrentFile(unzFile file, + voidp buf, + unsigned len); /* Read bytes from the current file (opened by unzOpenCurrentFile) buf contain buffer where data must be copied len the size of buf. - return the number of byte copied if somes bytes are copied + return the number of byte copied if some bytes are copied return 0 if the end of file was reached return <0 with error code if there is an error (UNZ_ERRNO for IO error, or zLib error for uncompress error) */ -extern z_off_t ZEXPORT unztell OF((unzFile file)); +extern z_off_t ZEXPORT unztell(unzFile file); -extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file)); +extern ZPOS64_T ZEXPORT unztell64(unzFile file); /* Give the current position in uncompressed data */ -extern int ZEXPORT unzeof OF((unzFile file)); +extern int ZEXPORT unzeof(unzFile file); /* return 1 if the end of file was reached, 0 elsewhere */ -extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, - voidp buf, - unsigned len)); +extern int ZEXPORT unzGetLocalExtrafield(unzFile file, + voidp buf, + unsigned len); /* Read extra field from the current file (opened by unzOpenCurrentFile) This is the local-header version of the extra field (sometimes, there is