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