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unzip-6.0/unzpriv.h  view on Meta::CPAN

# endif
#endif
#ifdef NEED_ISO_OEM_INIT
   void  prepare_ISO_OEM_translat   OF((__GPRO));                   /* local */
#endif
#if (defined(MALLOC_WORK) && defined(MY_ZCALLOC))
   zvoid far *zcalloc    OF((unsigned int, unsigned int));
   zvoid zcfree          OF((zvoid far *));
#endif /* MALLOC_WORK && MY_ZCALLOC */
#ifdef SYSTEM_SPECIFIC_CTOR
   void  SYSTEM_SPECIFIC_CTOR   OF((__GPRO));                       /* local */
#endif
#ifdef SYSTEM_SPECIFIC_DTOR
   void  SYSTEM_SPECIFIC_DTOR   OF((__GPRO));                       /* local */
#endif





/************/
/*  Macros  */
/************/

#ifndef MAX
#  define MAX(a,b)   ((a) > (b) ? (a) : (b))
#endif
#ifndef MIN
#  define MIN(a,b)   ((a) < (b) ? (a) : (b))
#endif

#ifdef DEBUG
#  if (defined(THEOS) && defined(NO_BOGUS_SPC))
#    define NO_DEBUG_IN_MACROS
#    define Trace(x)   _fprintf x
#  else
#    define Trace(x)   fprintf x
#  endif
#else
#  define Trace(x)
#endif

#ifdef DEBUG_TIME
#  define TTrace(x)  fprintf x
#else
#  define TTrace(x)
#endif

#ifdef NO_DEBUG_IN_MACROS
#  define MTrace(x)
#else
#  define MTrace(x)  Trace(x)
#endif

#if (defined(UNIX) || defined(T20_VMS)) /* generally old systems */
#  define ToLower(x)   ((char)(isupper((int)x)? tolower((int)x) : x))
#else
#  define ToLower      tolower          /* assumed "smart"; used in match() */
#endif

#ifdef USE_STRM_INPUT
   /* ``Replace'' the unbuffered UNIX style I/O function with similar
    * standard C functions from <stdio.h>.
    */
#  define read(fd,buf,n) fread((buf),1,(n),(FILE *)(fd))
#  ifdef zlseek
#    undef zlseek
#  endif
#  define zlseek(fd,o,w) zfseeko((FILE *)(fd),(o),(w))
#  define close(fd) fclose((FILE *)(fd))
#endif /* USE_STRM_INPUT */

/* The return value of the Info() "macro function" is never checked in
 * UnZip. Otherwise, to get the same behaviour as for (*G.message)(), the
 * Info() definition for "FUNZIP" would have to be corrected:
 * #define Info(buf,flag,sprf_arg) \
 *      (fputs((char *)(sprintf sprf_arg, (buf)), \
 *             (flag)&1? stderr : stdout) < 0)
 */
#ifndef Info   /* may already have been defined for redirection */
#  ifdef FUNZIP
#    define Info(buf,flag,sprf_arg) \
     fputs((char *)(sprintf sprf_arg, (buf)), (flag)&1? stderr : stdout)
#  else
#    ifdef INT_SPRINTF  /* optimized version for "int sprintf()" flavour */
#      define Info(buf,flag,sprf_arg) \
       (*G.message)((zvoid *)&G, (uch *)(buf), (ulg)sprintf sprf_arg, (flag))
#    else          /* generic version, does not use sprintf() return value */
#      define Info(buf,flag,sprf_arg) \
       (*G.message)((zvoid *)&G, (uch *)(buf), \
                     (ulg)(sprintf sprf_arg, strlen((char *)(buf))), (flag))
#    endif
#  endif
#endif /* !Info */

/*  This wrapper macro around fzofft() is just defined to "hide" the
 *  argument needed to reference the global storage buffers.
 */
#define FmZofft(val, pre, post) fzofft(__G__ val, pre, post)

/*  The following macro wrappers around the fnfilter function are used many
 *  times to prepare archive entry names or name components for displaying
 *  listings and (warning/error) messages. They use sections in the upper half
 *  of 'slide' as buffer, since their output is normally fed through the
 *  Info() macro with 'slide' (the start of this area) as message buffer.
 */
#define FnFilter1(fname) \
        fnfilter((fname), slide + (extent)(WSIZE>>1), (extent)(WSIZE>>2))
#define FnFilter2(fname) \
        fnfilter((fname), slide + (extent)((WSIZE>>1) + (WSIZE>>2)),\
                 (extent)(WSIZE>>2))

#ifndef FUNZIP   /* used only in inflate.c */
#  define MESSAGE(str,len,flag)  (*G.message)((zvoid *)&G,(str),(len),(flag))
#endif

#if 0            /* Optimization: use the (const) result of crc32(0L,NULL,0) */
#  define CRCVAL_INITIAL  crc32(0L, NULL, 0)
#else
#  define CRCVAL_INITIAL  0L
#endif

#ifdef SYMLINKS
   /* This macro defines the Zip "made by" hosts that are considered
      to support storing symbolic link entries. */
#  define SYMLINK_HOST(hn) ((hn) == UNIX_ || (hn) == ATARI_ || \
      (hn) == ATHEOS_ || (hn) == BEOS_ || (hn) == VMS_)
#endif

#ifndef TEST_NTSD               /* "NTSD valid?" checking function */
#  define TEST_NTSD     NULL    /*   ... is not available */