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unzip/msdos/doscfg.h

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/*
Copyright (c) 1990-2008 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2000-Apr-09 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------
MS-DOS specific configuration section:
---------------------------------------------------------------------------*/
#ifndef __doscfg_h
#define __doscfg_h
#include <dos.h> /* for REGS macro (TC) or _dos_setftime (MSC) */
#ifdef __TURBOC__ /* includes Power C */
# include <sys/timeb.h> /* for structure ftime */
# ifndef __BORLANDC__ /* there appears to be a bug (?) in Borland's */
# include <mem.h> /* MEM.H related to __STDC__ and far poin- */
# endif /* ters. (dpk) [mem.h included for memcpy] */
#endif
#ifdef WINDLL
# if (defined(MSC) || defined(__WATCOMC__))
# include <sys/utime.h>
# else /* !(MSC || __WATCOMC__) ==> may be BORLANDC, or GNU environment */
# include <utime.h>
# endif /* ?(MSC || __WATCOMC__) */
#endif
#ifdef __WATCOMC__
# define DOS_STAT_BANDAID
# ifdef __386__
# ifndef WATCOMC_386
# define WATCOMC_386
# endif
# define __32BIT__
# undef far
# define far
# undef near
# define near
/* Get asm routines to link properly without using "__cdecl": */
# ifndef USE_ZLIB
# pragma aux crc32 "_*" parm caller [] value [eax] modify [eax]
# pragma aux get_crc_table "_*" parm caller [] value [eax] \
modify [eax ecx edx]
# endif /* !USE_ZLIB */
# else /* !__386__ */
# ifndef USE_ZLIB
# pragma aux crc32 "_*" parm caller [] value [ax dx] \
modify [ax cx dx bx]
# pragma aux get_crc_table "_*" parm caller [] value [ax] \
modify [ax cx dx bx]
# endif /* !USE_ZLIB */
# endif /* ?__386__ */
#endif /* __WATCOMC__ */
#ifdef __EMX__
# ifndef __32BIT__
# define __32BIT__
# endif
# define far
# ifndef HAVE_MKTIME
# define HAVE_MKTIME
# endif
#endif
#if defined(__GO32__) || defined(__DJGPP__) /* MS-DOS compiler, not OS/2 */
# ifndef __32BIT__
# define __32BIT__
# endif
# ifndef __GO32__
# define __GO32__
# endif
# ifndef HAVE_MKTIME
# define HAVE_MKTIME
# endif
# include <sys/timeb.h> /* for structure ftime and ftime() */
# if (defined(__DJGPP__) && (__DJGPP__ > 1))
# include <unistd.h> /* for prototypes for read/write etc. */
# include <dir.h> /* for FA_LABEL */
# if ((__DJGPP__ == 2) && (__DJGPP_MINOR__ == 0))
# include <libc/dosio.h> /* for _USE_LFN, djgpp 2.0 only */
# endif
# define USE_LFN _USE_LFN /* runtime test: support long filenames? */
# else
int setmode(int, int); /* not in older djgpp's include files */
# endif
#endif
#ifndef __32BIT__
# define __16BIT__
#endif
#if (defined(M_I86CM) || defined(M_I86LM)) || defined(WINDLL)
# define MED_MEM
#endif
#if (defined(__COMPACT__) || defined(__LARGE__) || defined(__HUGE__))
# define MED_MEM
#endif
#ifdef __16BIT__
# ifndef MED_MEM
# define SMALL_MEM
# endif
#endif
#define EXE_EXTENSION ".exe" /* OS/2 has GetLoadPath() function instead */
#ifdef __16BIT__
# if defined(MSC) || defined(__WATCOMC__)
# include <malloc.h>
# define nearmalloc _nmalloc
# define nearfree _nfree
# endif
# if defined(__TURBOC__) && defined(DYNALLOC_CRCTAB)
# if defined(__COMPACT__) || defined(__LARGE__) || defined(__HUGE__)
# undef DYNALLOC_CRCTAB
# endif
# endif
# ifndef nearmalloc
# define nearmalloc malloc
# define nearfree free
# endif
# if defined(DEBUG) && defined(MSC) && (!defined(_MSC_VER) || _MSC_VER < 600)
/* for MSC 5.1, prevent macro expansion space overflow in DEBUG mode */
# define NO_DEBUG_IN_MACROS
# endif
# ifdef USE_DEFLATE64
# if (defined(M_I86TM) || defined(M_I86SM) || defined(M_I86MM))
# error Deflate64(tm) requires compact or large memory model
# endif
# if (defined(__TINY__) || defined(__SMALL__) || defined(__MEDIUM__))
# error Deflate64(tm) requires compact or large memory model
# endif
/* the 64k history buffer for Deflate64 must be allocated specially */
# define MALLOC_WORK
# define MY_ZCALLOC
# endif
#endif
/* 32-bit MSDOS supports the 32-bit optimized CRC-32 C code */
#ifdef IZ_CRC_BE_OPTIMIZ
# undef IZ_CRC_BE_OPTIMIZ
#endif
#ifdef __32BIT__
# if !defined(IZ_CRC_LE_OPTIMIZ) && !defined(NO_CRC_OPTIMIZ)
# define IZ_CRC_LE_OPTIMIZ
# endif
#else /* __16BIT__ does not support optimized C crc32 code */
# ifdef IZ_CRC_LE_OPTIMIZ
# undef IZ_CRC_LE_OPTIMIZ
# endif
#endif
/* another stat()/fopen() bug with some 16-bit compilers on Novell drives;
* very dangerous (silently overwrites executables in other directories)
*/
#define NOVELL_BUG_WORKAROUND
/* enables additional test and message code that directs UnZip to fail safely
* in case the "workaround" enabled above does not work as intended
*/
#define NOVELL_BUG_FAILSAFE
/* Some implementations of stat() tend to fail on "." in root directories
* or on remote (root) directories specified by an UNC network path. This
* patch of stat() is useful for at least the WATCOM compilers. The
* stat_bandaid() wrapper detects stat failures on root directories and
* fills in suitable values.
*/
#ifdef DOS_STAT_BANDAID
# ifdef SSTAT
# undef SSTAT
# endif
# ifdef WILD_STAT_BUG
# define SSTAT(path,pbuf) (iswild(path) || stat_bandaid(path,pbuf))
# else
# define SSTAT stat_bandaid
# endif
int stat_bandaid(const char *path, struct stat *buf);
#endif
/* the TIMESTAMP feature is now supported on MSDOS, enable it per default */
#if (!defined(NOTIMESTAMP) && !defined(TIMESTAMP))
# define TIMESTAMP
#endif
/* check that TZ environment variable is defined before using UTC times */
#if (!defined(NO_IZ_CHECK_TZ) && !defined(IZ_CHECK_TZ))
# define IZ_CHECK_TZ
#endif
/* The optional "long filename" support available with some MSDOS compiler
* environments running under VFAT systems (Win95) is controlled with the
* help of the two preprocessor symbols USE_VFAT and USE_LFN:
* - USE_VFAT is a compile time switch that selects the long filename
* semantics in mapname()
* - USE_LFN is a macro equating to a boolean expression indicating
* whether long filenames are supported. If available, this
* macro should make use of a runtime function checking the
* LFN support.
*
* The code in msdos.c distinguishes three cases:
* 1.) USE_VFAT is not defined:
* No support of LFN is included; filenames are mapped to 8+3 plain FAT
* syntax unconditionally.
* This is achieved by ``#define MAYBE_PLAIN_FAT'' to include the plain
* FAT name mapping code and by ``#undef USE_LFN'' to disable bypassing
* of the FAT mapping at runtime.
* 2.) USE_VFAT is defined:
* Support for LFN is enabled.
* a) USE_LFN is undefined:
* There is no (runtime) check available to distinguish between OS
* environments that support VFAT extensions and those that do not.
* In this case, filenames are mapped to the more liberal VFAT LFN
* syntax unconditionally. The internal switch MAYBE_PLAIN_FAT remains
* undefined to exclude to "map to plain FAT" code parts.
* b) USE_LFN is defined (hopefully to a boolean runtime LFN check function):
* "#define MAYBE_PLAIN_FAT" is applied to include the plain FAT mapping
* code; the programs checks at runtime whether the OS supports LFN and
* uses the appropiate mapping syntax.
*/
/* Some environments, like DJGPP v2, can support long filenames on VFAT
* systems and DOS 8.3 filenames on FAT systems in the same executable. If
* such support is available, USE_LFN should be defined to an expression
* that will return non-zero when long filenames API should be used, zero
* otherwise.
*/
#ifndef USE_VFAT
# ifdef USE_LFN
# undef USE_LFN
# endif
# ifndef MAYBE_PLAIN_FAT
# define MAYBE_PLAIN_FAT
# endif
#else
# ifdef USE_LFN
# define MAYBE_PLAIN_FAT
# endif
#endif
#ifdef ACORN_FTYPE_NFS
# undef ACORN_FTYPE_NFS /* no commas allowed in short filenames */
#endif
/* handlers for OEM <--> ANSI string conversions */
#ifdef WINDLL
# if 1
/* C RTL's file system support assumes OEM-coded strings */
# ifdef CRTL_CP_IS_ISO
# undef CRTL_CP_IS_ISO
# endif
# ifndef CRTL_CP_IS_OEM
# define CRTL_CP_IS_OEM
# endif
# else
/* C RTL's file system support assumes ISO-coded strings */
# ifndef CRTL_CP_IS_ISO
# define CRTL_CP_IS_ISO
# endif
# ifdef CRTL_CP_IS_OEM
# undef CRTL_CP_IS_OEM
# endif
# endif /* ?(code page of 16bit Windows compilers) */
/* include Win API declarations only in sources where conversion is
* actually used (skip __EXTRACT_C, extract.c includes windll.h instead)
*/
# if defined(__ENVARGS_C) || defined(__UNZIP_C) || defined(ZCRYPT_INTERNAL)
# include <windows.h>
# endif
/* use conversion functions of Windows API */
# ifdef CRTL_CP_IS_ISO
# define ISO_TO_INTERN(src, dst) {if ((src) != (dst)) strcpy((dst), (src));}
# define OEM_TO_INTERN(src, dst) OemToAnsi(src, dst)
# define INTERN_TO_ISO(src, dst) {if ((src) != (dst)) strcpy((dst), (src));}
# define INTERN_TO_OEM(src, dst) AnsiToOem(src, dst)
# endif
# ifdef CRTL_CP_IS_OEM
# define ISO_TO_INTERN(src, dst) AnsiToOem(src, dst)
# define OEM_TO_INTERN(src, dst) {if ((src) != (dst)) strcpy((dst), (src));}
# define INTERN_TO_ISO(src, dst) OemToAnsi(src, dst)
# define INTERN_TO_OEM(src, dst) {if ((src) != (dst)) strcpy((dst), (src));}
# endif
# define _OEM_INTERN(str1) OEM_TO_INTERN(str1, str1)
# define _ISO_INTERN(str1) ISO_TO_INTERN(str1, str1)
/* UzpPassword supplies ANSI-coded string regardless of C RTL's native CP */
# define STR_TO_CP2(dst, src) (AnsiToOem(src, dst), dst)
/* dummy defines to disable these functions, they are not needed */
# define STR_TO_ISO
# define STR_TO_OEM
#else
/* use home-brewed conversion functions; internal charset is OEM */
# ifdef CRTL_CP_IS_ISO
# undef CRTL_CP_IS_ISO
# endif
# ifndef CRTL_CP_IS_OEM
# define CRTL_CP_IS_OEM
# endif
#endif
#ifndef NEED_ISO_OEM_INIT
# define NEED_ISO_OEM_INIT
#endif
/* SCREENLINES macros for 16-bit and djgpp compilers */
#ifdef __16BIT__
# define SCREENLINES (int)(*((unsigned char far*)0x00400084L) + 1)
# define SCREENWIDTH (int)(*(unsigned short far*)0x0040004AL)
#endif
#if defined(__GO32__) || defined(__DJGPP__) /* djgpp v1.x and v2.x */
# include <pc.h>
# define SCREENLINES ScreenRows()
# define SCREENWIDTH ScreenCols()
#endif
#ifdef __EMX__
# define SCREENWIDTH 80
# define SCREENSIZE(scrrows, scrcols) screensize(scrrows, scrcols)
int screensize(int *tt_rows, int *tt_cols);
#endif
#ifdef WATCOMC_386
# define SCREENWIDTH 80
# define SCREENSIZE(scrrows, scrcols) screensize(scrrows, scrcols)
int screensize(int *tt_rows, int *tt_cols);
#endif
#ifndef SCREENSIZE
# define SCREENSIZE(scrrows, scrcols) { \
if ((scrrows) != NULL) *(scrrows) = SCREENLINES; \
if ((scrcols) != NULL) *(scrcols) = SCREENWIDTH; }
#endif
/* on the DOS console screen, line-wraps are always enabled */
#define SCREENLWRAP 1
#define TABSIZE 8
#endif /* !__doscfg_h */
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