unzpriv.h

压缩解压,是unzip540的升级,这个外国网站摘来的源码,是evb编写.

#endif
#ifndef DATE_FORMAT
#  define DATE_FORMAT   DF_MDY  /* defaults to US convention */
#endif
#ifndef DATE_SEPCHAR
#  define DATE_SEPCHAR  '-'
#endif
#ifndef CLOSE_INFILE
#  define CLOSE_INFILE()  close(G.zipfd)
#endif
#ifndef RETURN
#  define RETURN        return  /* only used in main() */
#endif
#ifndef EXIT
#  define EXIT          exit
#endif
#ifndef USAGE
#  define USAGE(ret)    usage(__G__ (ret))    /* used in unzip.c, zipinfo.c */
#endif
#ifndef TIMET_TO_NATIVE         /* everybody but MSC 7.0 and Macintosh */
#  define TIMET_TO_NATIVE(x)
#  define NATIVE_TO_TIMET(x)
#endif
#ifndef SSTAT
#  ifdef WILD_STAT_BUG
#    define SSTAT(path,pbuf) (iswild(path) || stat(path,pbuf))
#  else
#    define SSTAT stat
#  endif
#endif
#ifndef STRNICMP
#  ifdef NO_STRNICMP
#    define STRNICMP zstrnicmp
#  else
#    define STRNICMP strnicmp
#  endif
#endif


#if (defined(DOS_FLX_NLM_OS2_W32) || defined(ATH_BEO_UNX) || defined(RISCOS))
#  ifndef HAVE_UNLINK
#    define HAVE_UNLINK
#  endif
#endif
#if (defined(AOS_VS) || defined(ATARI)) /* GRR: others? */
#  ifndef HAVE_UNLINK
#    define HAVE_UNLINK
#  endif
#endif

/* OS-specific exceptions to the "ANSI <--> INT_SPRINTF" rule */

#if (!defined(PCHAR_SPRINTF) && !defined(INT_SPRINTF))
#  if (defined(SYSV) || defined(CONVEX) || defined(NeXT) || defined(BSD4_4))
#    define INT_SPRINTF      /* sprintf() returns int:  SysVish/Posix */
#  endif
#  if (defined(DOS_FLX_NLM_OS2_W32) || defined(VMS) || defined(AMIGA))
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI */
#  endif
#  if (defined(ultrix) || defined(__ultrix)) /* Ultrix 4.3 and newer */
#    if (defined(POSIX) || defined(__POSIX))
#      define INT_SPRINTF    /* sprintf() returns int:  ANSI/Posix */
#    endif
#    ifdef __GNUC__
#      define PCHAR_SPRINTF  /* undetermined actual return value */
#    endif
#  endif
#  if (defined(__osf__) || defined(_AIX) || defined(CMS_MVS) || defined(THEOS))
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI/Posix */
#  endif
#  if defined(sun)
#    define PCHAR_SPRINTF    /* sprintf() returns char *:  SunOS cc *and* gcc */
#  endif
#endif

/* defaults that we hope will take care of most machines in the future */

#if (!defined(PCHAR_SPRINTF) && !defined(INT_SPRINTF))
#  ifdef __STDC__
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI */
#  endif
#  ifndef INT_SPRINTF
#    define PCHAR_SPRINTF    /* sprintf() returns char *:  BSDish */
#  endif
#endif

#define MSG_STDERR(f)  (f & 1)        /* bit 0:  0 = stdout, 1 = stderr */
#define MSG_INFO(f)    ((f & 6) == 0) /* bits 1 and 2:  0 = info */
#define MSG_WARN(f)    ((f & 6) == 2) /* bits 1 and 2:  1 = warning */
#define MSG_ERROR(f)   ((f & 6) == 4) /* bits 1 and 2:  2 = error */
#define MSG_FATAL(f)   ((f & 6) == 6) /* bits 1 and 2:  (3 = fatal error) */
#define MSG_ZFN(f)     (f & 0x0008)   /* bit 3:  1 = print zipfile name */
#define MSG_FN(f)      (f & 0x0010)   /* bit 4:  1 = print filename */
#define MSG_LNEWLN(f)  (f & 0x0020)   /* bit 5:  1 = leading newline if !SOL */
#define MSG_TNEWLN(f)  (f & 0x0040)   /* bit 6:  1 = trailing newline if !SOL */
#define MSG_MNEWLN(f)  (f & 0x0080)   /* bit 7:  1 = trailing NL for prompts */
/* the following are subject to change */
#define MSG_NO_WGUI(f) (f & 0x0100)   /* bit 8:  1 = skip if Windows GUI */
#define MSG_NO_AGUI(f) (f & 0x0200)   /* bit 9:  1 = skip if Acorn GUI */
#define MSG_NO_DLL2(f) (f & 0x0400)   /* bit 10:  1 = skip if OS/2 DLL */
#define MSG_NO_NDLL(f) (f & 0x0800)   /* bit 11:  1 = skip if WIN32 DLL */
#define MSG_NO_WDLL(f) (f & 0x1000)   /* bit 12:  1 = skip if Windows DLL */

#if (defined(MORE) && !defined(SCREENLINES))
#  ifdef DOS_FLX_NLM_OS2_W32
#    define SCREENLINES 25  /* can be (should be) a function instead */
#  else
#    define SCREENLINES 24  /* VT-100s are assumed to be minimal hardware */
#  endif
#endif
#if (defined(MORE) && !defined(SCREENSIZE))
#  ifndef SCREENWIDTH
#    define SCREENSIZE(scrrows, scrcols) { \
          if ((scrrows) != NULL) *(scrrows) = SCREENLINES; }
#  else
#    define SCREENSIZE(scrrows, scrcols) { \
          if ((scrrows) != NULL) *(scrrows) = SCREENLINES; \
          if ((scrcols) != NULL) *(scrcols) = SCREENWIDTH; }
#  endif
#endif

#define DIR_BLKSIZ  64      /* number of directory entries per block
                             *  (should fit in 4096 bytes, usually) */
#ifndef WSIZE
#  ifdef USE_DEFLATE64
#    define WSIZE   65536L  /* window size--must be a power of two, and */
#  else                     /*  at least 64K for PKZip's deflate64 method */
#    define WSIZE   0x8000  /* window size--must be a power of two, and */
#  endif                    /*  at least 32K for zip's deflate method */
#endif

#ifdef __16BIT__
#  ifndef INT_16BIT
#    define INT_16BIT       /* on 16-bit systems int size is 16 bits */
#  endif
#else
#  define nearmalloc  malloc
#  define nearfree    free
#  if (!defined(__IBMC__) || !defined(OS2))
#    ifndef near
#      define near
#    endif
#    ifndef far
#      define far
#    endif
#  endif
#endif

#if (defined(DYNALLOC_CRCTAB) && !defined(DYNAMIC_CRC_TABLE))
#  undef DYNALLOC_CRCTAB
#endif

#if (defined(DYNALLOC_CRCTAB) && defined(REENTRANT))
#  undef DYNALLOC_CRCTAB   /* not safe with reentrant code */
#endif

#if (defined(USE_ZLIB) && !defined(USE_OWN_CRCTAB))
#  ifdef DYNALLOC_CRCTAB
#    undef DYNALLOC_CRCTAB
#  endif
#endif

#if (defined(USE_ZLIB) && defined(ASM_CRC))
#  undef ASM_CRC
#endif

#ifndef INBUFSIZ
#  if (defined(MED_MEM) || defined(SMALL_MEM))
#    define INBUFSIZ  2048  /* works for MS-DOS small model */
#  else
#    define INBUFSIZ  8192  /* larger buffers for real OSes */
#  endif
#endif

#if (defined(INT_16BIT) && (defined(USE_DEFLATE64) || lenEOL > 1))
   /* For environments using 16-bit integers OUTBUFSIZ must be limited to
    * less than 64k (do_string() uses "unsigned" in calculations involving
    * OUTBUFSIZ).  This is achieved by defining MED_MEM when WSIZE = 64k (aka
    * Deflate64 support enabled) or EOL markers consist multiple characters.
    * (The rule gets applied AFTER the default rule for INBUFSIZ because it
    * is not neccessary to reduce INBUFSIZE in this case.)
    */
#  if (!defined(SMALL_MEM) && !defined(MED_MEM))
#    define MED_MEM
#  endif
#endif

/* Logic for case of small memory, length of EOL > 1:  if OUTBUFSIZ == 2048,
 * OUTBUFSIZ>>1 == 1024 and OUTBUFSIZ>>7 == 16; therefore rawbuf is 1008 bytes
 * and transbuf 1040 bytes.  Have room for 32 extra EOL chars; 1008/32 == 31.5
 * chars/line, smaller than estimated 35-70 characters per line for C source
 * and normal text.  Hence difference is sufficient for most "average" files.
 * (Argument scales for larger OUTBUFSIZ.)
 */
#ifdef SMALL_MEM          /* i.e., 16-bit OSes:  MS-DOS, OS/2 1.x, etc. */
#  define LoadFarString(x)       fLoadFarString(__G__ (x))
#  define LoadFarStringSmall(x)  fLoadFarStringSmall(__G__ (x))
#  define LoadFarStringSmall2(x) fLoadFarStringSmall2(__G__ (x))
#  if (defined(_MSC_VER) && (_MSC_VER >= 600))
#    define zfstrcpy(dest, src)  _fstrcpy((dest), (src))
#    define zfstrcmp(s1, s2)     _fstrcmp((s1), (s2))
#  endif
#  if !(defined(SFX) || defined(FUNZIP))
#    if (defined(_MSC_VER))
#      define zfmalloc(sz)       _fmalloc((sz))
#      define zffree(x)          _ffree(x)
#    endif
#    if (defined(__TURBOC__))
#      include <alloc.h>
#      define zfmalloc(sz)       farmalloc((unsigned long)(sz))
#      define zffree(x)          farfree(x)
#    endif
#  endif /* !(SFX || FUNZIP) */
#  ifndef Far
#    define Far far  /* __far only works for MSC 6.00, not 6.0a or Borland */
#  endif
#  define OUTBUFSIZ INBUFSIZ
#  if (lenEOL == 1)
#    define RAWBUFSIZ (OUTBUFSIZ>>1)
#  else
#    define RAWBUFSIZ ((OUTBUFSIZ>>1) - (OUTBUFSIZ>>7))
#  endif
#  define TRANSBUFSIZ (OUTBUFSIZ-RAWBUFSIZ)
   typedef short  shrint;            /* short/int or "shrink int" (unshrink) */
#else
#  define zfstrcpy(dest, src)       strcpy((dest), (src))
#  define zfstrcmp(s1, s2)          strcmp((s1), (s2))
#  define zfmalloc                  malloc
#  define zffree(x)                 free(x)
#  ifdef QDOS
#    define LoadFarString(x)        Qstrfix(x)   /* fix up _ for '.' */
#    define LoadFarStringSmall(x)   Qstrfix(x)
#    define LoadFarStringSmall2(x)  Qstrfix(x)
#  else
#    define LoadFarString(x)        (char *)(x)
#    define LoadFarStringSmall(x)   (char *)(x)
#    define LoadFarStringSmall2(x)  (char *)(x)
#  endif
#  ifdef MED_MEM
#    define OUTBUFSIZ 0xFF80         /* can't malloc arrays of 0xFFE8 or more */
#    define TRANSBUFSIZ 0xFF80
     typedef short  shrint;
#  else
#    define OUTBUFSIZ (lenEOL*WSIZE) /* more efficient text conversion */
#    define TRANSBUFSIZ (lenEOL*OUTBUFSIZ)
#    ifdef AMIGA
       typedef short shrint;
#    else
       typedef int  shrint;          /* for efficiency/speed, we hope... */
#    endif
#  endif /* ?MED_MEM */
#  define RAWBUFSIZ OUTBUFSIZ
#endif /* ?SMALL_MEM */

#ifndef Far
#  define Far
#endif

#ifndef Cdecl
#  define Cdecl
#endif

#ifndef MAIN
#  define MAIN  main
#endif

#ifdef SFX      /* disable some unused features for SFX executables */
#  ifndef NO_ZIPINFO
#    define NO_ZIPINFO
#  endif
#  ifdef TIMESTAMP
#    undef TIMESTAMP
#  endif
#endif

#ifdef SFX
#  ifdef CHEAP_SFX_AUTORUN
#    ifndef NO_SFX_EXDIR
#      define NO_SFX_EXDIR
#    endif
#  endif
#  ifndef NO_SFX_EXDIR
#    ifndef SFX_EXDIR
#      define SFX_EXDIR
#    endif
#  else
#    ifdef SFX_EXDIR
#      undef SFX_EXDIR
#    endif
#  endif
#endif

/* user may have defined both by accident...  NOTIMESTAMP takes precedence */
#if (defined(TIMESTAMP) && defined(NOTIMESTAMP))
#  undef TIMESTAMP
#endif

#if (!defined(COPYRIGHT_CLEAN) && !defined(USE_SMITH_CODE))
#  define COPYRIGHT_CLEAN
#endif

/* The LZW patent is expired worldwide since 2004-Jul-07, so USE_UNSHRINK
 * is now enabled by default.  See unshrink.c.
 */
#if (!defined(LZW_CLEAN) && !defined(USE_UNSHRINK))
#  define USE_UNSHRINK
#endif

#ifndef O_BINARY
#  define O_BINARY  0
#endif

#ifndef PIPE_ERROR
#  define PIPE_ERROR (errno == EPIPE)
#endif

/* File operations--use "b" for binary if allowed or fixed length 512 on VMS */
#ifdef VMS
#  define FOPR  "r","ctx=stm"
#  define FOPM  "r+","ctx=stm","rfm=fix","mrs=512"
#  define FOPW  "w","ctx=stm","rfm=fix","mrs=512"
#endif /* VMS */

#ifdef CMS_MVS
/* Binary files must be RECFM=F,LRECL=1 for ftell() to get correct pos */
/* ...unless byteseek is used.  Let's try that for a while.            */
#  define FOPR "rb,byteseek"
#  define FOPM "r+b,byteseek"
#  ifdef MVS
#    define FOPW "wb,recfm=u,lrecl=32760,byteseek" /* New binary files */
#    define FOPWE "wb"                             /* Existing binary files */
#    define FOPWT "w,lrecl=133"                    /* New text files */
#    define FOPWTE "w"                             /* Existing text files */
#  else
#    define FOPW "wb,recfm=v,lrecl=32760"
#    define FOPWT "w"
#  endif
#endif /* CMS_MVS */

#ifdef TOPS20          /* TOPS-20 MODERN?  You kidding? */
#  define FOPW "w8"
#endif /* TOPS20 */

/* Defaults when nothing special has been defined previously. */
#ifdef MODERN
#  ifndef FOPR
#    define FOPR "rb"
#  endif
#  ifndef FOPM
#    define FOPM "r+b"
#  endif
#  ifndef FOPW
#    define FOPW "wb"
#  endif
#  ifndef FOPWT
#    define FOPWT "wt"
#  endif
#else /* !MODERN */
#  ifndef FOPR
#    define FOPR "r"
#  endif
#  ifndef FOPM
#    define FOPM "r+"
#  endif
#  ifndef FOPW
#    define FOPW "w"
#  endif
#  ifndef FOPWT
#    define FOPWT "w"
#  endif
#endif /* ?MODERN */

/*
 * If <limits.h> exists on most systems, should include that, since it may
 * define some or all of the following:  NAME_MAX, PATH_MAX, _POSIX_NAME_MAX,
 * _POSIX_PATH_MAX.
 */
#ifdef DOS_FLX_NLM_OS2_W32
#  include <limits.h>
#endif