include/ctype.h

/***
*ctype.h - character conversion macros and ctype macros
*
*	Copyright (c) 1985-1989, Microsoft Corporation.  All rights reserved.
*
*Purpose:
*	Defines macros for character classification/conversion.
*	[ANSI/System V]
*
****/


#ifndef NO_EXT_KEYS	/* extensions enabled */
	#define _CDECL	cdecl
	#define _NEAR	near
#else /* extensions not enabled */
	#define _CDECL
	#define _NEAR
#endif /* NO_EXT_KEYS */

/*
 * This declaration allows the user access to the ctype look-up
 * array _ctype defined in ctype.obj by simply including ctype.h
 */

extern unsigned char _NEAR _CDECL _ctype[];

/* set bit masks for the possible character types */

#define _UPPER		0x1	/* upper case letter */
#define _LOWER		0x2	/* lower case letter */
#define _DIGIT		0x4	/* digit[0-9] */
#define _SPACE		0x8	/* tab, carriage return, newline, */
				/* vertical tab or form feed */
#define _PUNCT		0x10	/* punctuation character */
#define _CONTROL	0x20	/* control character */
#define _BLANK		0x40	/* space char */
#define _HEX		0x80	/* hexadecimal digit */

/* the character classification macro definitions */

#define isalpha(c)		( (_ctype+1)[c] & (_UPPER|_LOWER) )
#define isupper(c)		( (_ctype+1)[c] & _UPPER )
#define islower(c)		( (_ctype+1)[c] & _LOWER )
#define isdigit(c)		( (_ctype+1)[c] & _DIGIT )
#define isxdigit(c)		( (_ctype+1)[c] & _HEX )
#define isspace(c)		( (_ctype+1)[c] & _SPACE )
#define ispunct(c)		( (_ctype+1)[c] & _PUNCT )
#define isalnum(c)		( (_ctype+1)[c] & (_UPPER|_LOWER|_DIGIT) )
#define isprint(c)		( (_ctype+1)[c] & (_BLANK|_PUNCT|_UPPER|_LOWER|_DIGIT) )
#define isgraph(c)		( (_ctype+1)[c] & (_PUNCT|_UPPER|_LOWER|_DIGIT) )
#define iscntrl(c)		( (_ctype+1)[c] & _CONTROL )

#define toupper(c)		( (islower(c)) ? _toupper(c) : (c) )
#define tolower(c)		( (isupper(c)) ? _tolower(c) : (c) )

#define _tolower(c)		( (c)-'A'+'a' )
#define _toupper(c)		( (c)-'a'+'A' )

#define isascii(c)		( (unsigned)(c) < 0x80 )
#define toascii(c)		( (c) & 0x7f )

/* MS C version 2.0 extended ctype macros */

#define iscsymf(c)		(isalpha(c) || ((c) == '_'))
#define iscsym(c)		(isalnum(c) || ((c) == '_'))

include/errno.h

/***
*errno.h - system wide error numbers (set by system calls)
*
*	Copyright (c) 1985-1989, Microsoft Corporation.  All rights reserved.
*
*Purpose:
*	This file defines the system-wide error numbers (set by
*	system calls).	Conforms to the XENIX standard.  Extended
*	for compatibility with Uniforum standard.
*	[System V]
*
****/


#ifndef NO_EXT_KEYS	/* extensions enabled */
	#define _CDECL	cdecl
	#define _NEAR	near
#else /* extensions not enabled */
	#define _CDECL
	#define _NEAR
#endif /* NO_EXT_KEYS */

/* declare reference to errno */

extern int _NEAR _CDECL errno;

/* Error Codes */

#define EZERO		0
#define EPERM		1
#define ENOENT		2
#define ESRCH		3
#define EINTR		4
#define EIO		5
#define ENXIO		6
#define E2BIG		7
#define ENOEXEC 	8
#define EBADF		9
#define ECHILD		10
#define EAGAIN		11
#define ENOMEM		12
#define EACCES		13
#define EFAULT		14
#define ENOTBLK 	15
#define EBUSY		16
#define EEXIST		17
#define EXDEV		18
#define ENODEV		19
#define ENOTDIR 	20
#define EISDIR		21
#define EINVAL		22
#define ENFILE		23
#define EMFILE		24
#define ENOTTY		25
#define ETXTBSY 	26
#define EFBIG		27
#define ENOSPC		28
#define ESPIPE		29
#define EROFS		30
#define EMLINK		31
#define EPIPE		32
#define EDOM		33
#define ERANGE		34
#define EUCLEAN 	35
#define EDEADLOCK	36

include/signal.h

/***
*signal.h - defines signal values and routines
*
*	Copyright (c) 1985-1989, Microsoft Corporation.  All rights reserved.
*
*Purpose:
*	This file defines the signal values and declares the signal functions.
*	[ANSI/System V]
*
****/


#ifndef NO_EXT_KEYS	/* extensions enabled */
	#define _CDECL	cdecl
#else /* extensions not enabled */
	#define _CDECL
#endif /* NO_EXT_KEYS */

#ifndef _SIG_ATOMIC_T_DEFINED
typedef int sig_atomic_t;
#define _SIG_ATOMIC_T_DEFINED
#endif


#define NSIG 23		/* maximum signal number + 1 */

/* signal types */
/* SIGINT, SIGFPE, SIGILL, SIGSEGV, and SIGABRT are recognized on DOS 3.x */

#define SIGINT		2	/* interrupt - corresponds to DOS 3.x int 23H */
#define SIGILL		4	/* illegal instruction - invalid function image */
#define SIGFPE		8	/* floating point exception */
#define SIGSEGV		11	/* segment violation */
#define SIGTERM		15	/* Software termination signal from kill */
#define SIGUSR1		16	/* User defined signal 1 */
#define SIGUSR2		17	/* User defined signal 2 */
#define SIGUSR3		20	/* User defined signal 3 */
#define SIGBREAK	21	/* Ctrl-Break sequence */
#define SIGABRT		22	/* abnormal termination triggered by abort call */


/* signal action codes */
/* SIG_DFL and SIG_IGN are recognized on DOS 3.x */

#define SIG_DFL (void (_CDECL *)())0	/* default signal action */
#define SIG_IGN (void (_CDECL *)())1	/* ignore */
#define SIG_SGE (void (_CDECL *)())3	/* signal gets error */
#define SIG_ACK (void (_CDECL *)())4	/* error if handler not setup */


/* signal error value (returned by signal call on error) */

#define SIG_ERR (void (_CDECL *)())-1	/* signal error value */


/* function prototypes */

void (_CDECL * _CDECL signal(int, void (_CDECL *)()))();
int _CDECL raise(int);

include/sys/stat.h

/***
*sys\stat.h - defines structure used by stat() and fstat()
*
*	Copyright (c) 1985-1989, Microsoft Corporation.  All rights reserved.
*
*Purpose:
*	This file defines the structure used by the stat() and fstat()
*	routines.
*	[System V]
*
****/


#ifndef NO_EXT_KEYS	/* extensions enabled */
	#define CDECL	cdecl
#else			/* extensions not enabled */
	#define CDECL
#endif /* NO_EXT_KEYS */

#ifndef _TIME_T_DEFINED
typedef long time_t;
#define _TIME_T_DEFINED
#endif

/* define structure for returning status information */

#ifndef _STAT_DEFINED
struct stat {
	dev_t st_dev;
	ino_t st_ino;
	unsigned short st_mode;
	short st_nlink;
	short st_uid;
	short st_gid;
	dev_t st_rdev;
	off_t st_size;
	time_t st_atime;
	time_t st_mtime;
	time_t st_ctime;
	};
#define _STAT_DEFINED
#endif

#define S_IFMT		0170000 	/* file type mask */
#define S_IFDIR 	0040000 	/* directory */
#define S_IFCHR 	0020000 	/* character special */
#define S_IFREG 	0100000 	/* regular */
#define S_IREAD 	0000400 	/* read permission, owner */
#define S_IWRITE	0000200 	/* write permission, owner */
#define S_IEXEC 	0000100 	/* execute/search permission, owner */


/* function prototypes */

int CDECL fstat(int, struct stat *);
int CDECL stat(char *, struct stat *);