/* * S Y S T E M . H * * Header file for EXPAND, a file maintenance utility to decompress files; * compatible with the public domain COMPRESS utility (Rev. 4) by * Spencer W. Thomas, et al. * * This file contains definitions which may need to change for different * systems and compilers. *----------------------------------------------------------------------- * Author: Lyle V. Rains *----------------------------------------------------------------------- * Revision History: */ #define YES 1 #define NO 0 #ifdef __MSDOS__ /* Turbo C */ # define MSDOS #endif #ifdef M_XENIX # define CONST # define FNAME_MONOCASE NO #endif #ifdef MCH_AMIGA # define CONST # define PATHDELIM ":/" # define MAXNAMELEN 30 #endif #ifndef CONST # define CONST const #endif #ifndef FNAME_MONOCASE # define FNAME_MONOCASE YES #endif #ifndef PATHDELIM # define PATHDELIM "/" #endif #ifndef MAXNAMELEN # define MAXNAMELEN 14 #endif #ifdef EXPAND /* System dependencies in EXPAND.C and EXPAND.H */ /* Machines/compilers with maximum 64k bytes per data object */ # ifdef MSDOS /* Brain damaged CPU */ # define MAXSEG_64K # endif # ifdef MCH_AMIGA /* Manx C compiler has 64k-byte limit on objects */ # define MAXSEG_64K # endif # ifdef M_I286 /* Xenix compiled for 286 */ # define MAXSEG_64K # endif /* * You can define the value of MAXBITS to be anything betweeen INITBITS * and MAXMAXBITS. This is will determine the maximum memory you will * use and how the tables will be handled. I recommend you just leave * it at MAXMAXBITS. The only reason to mess with this value is * if you absolutely must have faster performance. If you specify * 15 bits, the pfx[] will not be split; at 14 bits, you can fit in * the MSDOS small memory model and allocate tables in near heap. * This value is available to other modules through the variable Maxbits. */ # ifndef MAXBITS # define MAXBITS MAXMAXBITS # endif # if (MAXBITS > MAXMAXBITS) # undef MAXBITS # define MAXBITS MAXMAXBITS # endif # if (MAXBITS < INITBITS) # undef MAXBITS # define MAXBITS INITBITS # endif # define SPLIT_PFX NO # ifdef MAXSEG_64K # if (MAXBITS > 15) # undef SPLIT_PFX # define SPLIT_PFX YES # endif # endif # ifdef MSC # if (MAXBITS > 14) /* MSC hack to use small memory model with explicit far pointers */ # define FAR far # include # define malloc(x) _fmalloc(x) # define free(x) _ffree(x) # else # include # endif # endif # ifdef __TURBOC__ # if (MAXBITS > 14) /* Turbo C hack to use small memory model with explicit far pointers */ # define FAR far # include # define malloc(x) farmalloc((unsigned long)x) # define free(x) farfree(x) # define FAR far # else # include # endif # endif # ifdef __ZTC__ # include # endif # ifdef MWC # include # define ALLOCTYPE char # define MALLOCARG unsigned long # define malloc(x) lmalloc((MALLOCARG)(x)) # endif # ifdef M_XENIX # include # endif # ifdef MCH_AMIGA # define ALLOCTYPE char ALLOCTYPE * malloc(); # endif # ifdef vms # include # endif /* What pointer type does malloc() return? * What argument type does it take? */ # ifndef ALLOCTYPE # define ALLOCTYPE void # endif # ifndef FAR # define FAR # endif # ifndef MALLOCARG # define MALLOCARG unsigned int # endif #endif #ifdef MAIN /* System dependencies in MAIN.C and MAIN.H */ # define FILTER NO /* Default action with no arguments */ # define KILL NO /* Default delete action on input file */ /* You should define DFLTBITS to be the default compression code * bit length you desire on your system. * (I define mine in the compiler command line in my Makefile.) */ # define SW '-' /* Command line switch prefix character */ # define TO '=' /* Command line output file prefix char */ # ifdef vms # define NORMAL 1 /* Normal return value for program */ # define ERROR 0x10000004 /* Error return value for program */ # define unlink remove # else # define NORMAL 0 /* Normal return value for program */ # define ERROR 1 /* Error return value for program */ # endif # define NAMEBUFSIZ 128 /* Size of filename buffer (with path) */ # ifdef MWC # define NOSETVBUF # endif # ifdef vms # define NOSETVBUF # endif # ifdef MCH_AMIGA # define NOSETVBUF # endif # ifdef NOSETVBUF /* No setvbuf() function */ # define setvbuf(fp, buf, mode, size) # define ZBUFSIZE (1) # define XBUFSIZE (1) # else # define ZBUFSIZE (0x1400) /* Bigger buffers for faster I/O */ # define XBUFSIZE (0xC00) # endif # ifdef MSC # include /* These are needed for setmode(), */ # include /* used in the setbinary() macro. */ # define setbinary(fp) setmode(fileno(fp), O_BINARY) # endif # ifdef __TURBOC__ # include /* These are needed for setmode(), */ # include /* used in the setbinary() macro. */ # define setbinary(fp) setmode(fileno(fp), O_BINARY) # endif # ifdef __ZTC__ # define setbinary(fp) ((fp)->_flag&=~_IOTRAN) # endif # ifdef MWC # define setbinary(fp) ((fp)->_ff &= ~_FASCII) # endif # ifndef setbinary /* Assume file access is always binary */ # define setbinary(fp) # endif #endif #ifdef MSDOS # define MSDOS_FNAMES #endif #ifdef MWC # define MSDOS_FNAMES #endif /* Default suffix for compressed file */ #ifdef MSDOS_FNAMES # define ZSUFFIX "Z" #endif #ifdef vms # define ZSUFFIX "_Z" #endif #ifndef ZSUFFIX # define ZSUFFIX ".Z" #endif #ifdef SYSTEM # include # if FNAME_MONOCASE # include # define CASE tolower # else # define CASE # endif #endif /* * Externally visible objects in SYSTEM.C * int to_xname(char *inname); * void to_zname(char *inname); * extern int eprintf(char *format, ...); * extern int debug; */ int to_xname(); void to_zname(); extern int eprintf(); #ifndef DEBUGOUT # define DEBUGOUT 1 /* Enable debug info output */ #endif #if DEBUGOUT extern int debug; # define DBG(msg) (debug && eprintf msg) #else # define DBG(msg) #endif #define errexit(msg, exitval) (eprintf msg, exit(exitval))