UNIX System III

a.out.h

/*
 * Format of an a.out header
 */
 
struct	exec {	/* a.out header */
	short		a_magic;	/* magic number */
#if	vax
	short		a_stamp;
#endif
	unsigned	a_text;		/* size of text segment */
	unsigned	a_data;		/* size of initialized data */
	unsigned	a_bss;		/* size of uninitialized data */
	unsigned	a_syms;		/* size of symbol table */
	unsigned	a_entry;	/* entry point */
#if	vax
	unsigned	a_trsize;	/* size of text relocation */
	unsigned	a_drsize;	/* size of data relocation */
#endif
#if	pdp11
	unsigned	a_stamp;	/* system environment stamp */
	unsigned	a_flag;		/* relocation info stripped */
#endif
};

#define	A_MAGIC1	0407		/* normal */
#define	A_MAGIC0	0401		/* lpd (UNIX/RT) */
#define	A_MAGIC2	0410		/* read-only text */
#define	A_MAGIC3	0411		/* separated I&D */
#define	A_MAGIC4	0405		/* overlay */

#if	vax
struct relocation_info {
	  long  r_address;	/* relative to current segment */
	  int	r_symbolnum:24,
				/* if extern then symbol table */
				/* ordinal (0, 1, 2, ...) else */
				/* segment number (same as symbol types) */
	        r_pcrel:1, 	/* if so, segment offset has already */
				/* been subtracted */
	  	r_length:2,	/* 0=byte, 1=word, 2=long */
	  	r_extern:1,	/* does not include value */
				/* of symbol referenced */
	  	r_offset:1,	/* already includes origin */
				/* of this segment (?) */
		r_pad:3;	/* nothing, yet */
};
#endif
struct	nlist { /* symbol table entry */
	char	n_name[8];	/* symbol name */
#if	vax
	char	n_type;		/* type flag */
	char	n_other;
	short	n_desc;
#endif
#if	pdp11
	int	n_type;		/* type flag */
#endif
	unsigned n_value;	/* value */
};

/* ***** in invocation of BADMAG macro, argument should not be a function.***/
#define	BADMAG(X) (X.a_magic!=A_MAGIC1 && X.a_magic!=A_MAGIC2 && X.a_magic!=A_MAGIC3 && X.a_magic!=A_MAGIC4 && X.a_magic!=A_MAGIC0)

	/* values for type flag */
#if	vax

#define	N_UNDF	0		/* undefined */
#define	N_ABS	02		/* absolute */
#define	N_TEXT	04		/* text */
#define	N_DATA	06		/* data */
#define	N_BSS	08
#define	N_TYPE	037
#define	N_FN	037		/* file name symbol */

#define	N_GSYM	0040		/* global sym: name,,type,0 */
#define	N_FNAME 0042		/* procedure name (f77 kludge): name,,,0 */
#define	N_FUN	0044		/* procedure: name,,linenumber,address */
#define	N_STSYM 0046		/* static symbol: name,,type,address */
#define	N_LCSYM 0048		/* .lcomm symbol: name,,type,address */
#define	N_BSTR  0060		/* begin structure: name,,, */
#define	N_RSYM	0100		/* register sym: name,,register,offset */
#define	N_SLINE	0104		/* src line: ,,linenumber,address */
#define	N_ESTR  0120		/* end structure: name,,, */
#define	N_SSYM	0140		/* structure elt: name,,type,struct_offset */
#define	N_SO	0144		/* source file name: name,,,address */
#define	N_BENUM 0160		/* begin enum: name,,, */
#define	N_LSYM	0200		/* local sym: name,,type,offset */
#define	N_SOL	0204		/* #line source filename: name,,,address */
#define	N_ENUM	0220		/* enum element: name,,,value */
#define	N_PSYM	0240		/* parameter: name,,type,offset */
#define	N_ENTRY	0244		/* alternate entry: name,,linenumber,address */
#define	N_EENUM 0260		/* end enum: name,,, */
#define	N_LBRAC	0300		/* left bracket: ,,nesting level,address */
#define	N_RBRAC	0340		/* right bracket: ,,nesting level,address */
#define	N_BCOMM	0342		/* begin common: name,,, */
#define	N_ECOMM	0344		/* end common: name,,, */
#define	N_ECOML	0348		/* end common (local name): ,,,address */
#define	N_STRU	0374		/* 2nd entry for structure: str tag,,,length */
#define	N_LENG	0376		/* additional entry with length: ,,,length */

#define	N_EXT	01		/* external bit, or'ed in */

#define	FORMAT	"%.8x"

#define	STABTYPES	0340

#endif
#if	pdp11

#define	N_UNDF	0	/* undefined */
#define	N_ABS	01	/* absolute */
#define	N_TEXT	02	/* text symbol */
#define	N_DATA	03	/* data symbol */
#define	N_BSS	04	/* bss symbol */
#define	N_TYPE	037
#define	N_REG	024	/* register name */
#define	N_FN	037	/* file name symbol */
#define	N_EXT	040	/* external bit, or'ed in */
#define	FORMAT	"%.6o"	/* to print a value */

#endif

ctype.h

#define	_U	01
#define	_L	02
#define	_N	04
#define	_S	010
#define _P	020
#define _C	040
#define _B	0100
#define	_X	0200

extern	char	_ctype[];

#define	isalpha(c)	((_ctype+1)[c]&(_U|_L))
#define	isupper(c)	((_ctype+1)[c]&_U)
#define	islower(c)	((_ctype+1)[c]&_L)
#define	isdigit(c)	((_ctype+1)[c]&_N)
#define	isxdigit(c)	((_ctype+1)[c]&_X)
#define	isspace(c)	((_ctype+1)[c]&_S)
#define ispunct(c)	((_ctype+1)[c]&_P)
#define isalnum(c)	((_ctype+1)[c]&(_U|_L|_N))
#define isprint(c)	((_ctype+1)[c]&(_P|_U|_L|_N|_B))
#define isgraph(c)	((_ctype+1)[c]&(_P|_U|_L|_N))
#define iscntrl(c)	((_ctype+1)[c]&_C)
#define isascii(c)	((unsigned)(c)<=0177)
#define _toupper(c)	((c)-'a'+'A')
#define _tolower(c)	((c)-'A'+'a')
#define toascii(c)	((c)&0177)

errno.h

/*
 * Error codes
 */

#define	EPERM	1	/* Not super-user			*/
#define	ENOENT	2	/* No such file or directory		*/
#define	ESRCH	3	/* No such process			*/
#define	EINTR	4	/* interrupted system call		*/
#define	EIO	5	/* I/O error				*/
#define	ENXIO	6	/* No such device or address		*/
#define	E2BIG	7	/* Arg list too long			*/
#define	ENOEXEC	8	/* Exec format error			*/
#define	EBADF	9	/* Bad file number			*/
#define	ECHILD	10	/* No children				*/
#define	EAGAIN	11	/* No more processes			*/
#define	ENOMEM	12	/* Not enough core			*/
#define	EACCES	13	/* Permission denied			*/
#define	EFAULT	14	/* Bad address				*/
#define	ENOTBLK	15	/* Block device required		*/
#define	EBUSY	16	/* Mount device busy			*/
#define	EEXIST	17	/* File exists				*/
#define	EXDEV	18	/* Cross-device link			*/
#define	ENODEV	19	/* No such device			*/
#define	ENOTDIR	20	/* Not a directory			*/
#define	EISDIR	21	/* Is a directory			*/
#define	EINVAL	22	/* Invalid argument			*/
#define	ENFILE	23	/* File table overflow			*/
#define	EMFILE	24	/* Too many open files			*/
#define	ENOTTY	25	/* Not a typewriter			*/
#define	ETXTBSY	26	/* Text file busy			*/
#define	EFBIG	27	/* File too large			*/
#define	ENOSPC	28	/* No space left on device		*/
#define	ESPIPE	29	/* Illegal seek				*/
#define	EROFS	30	/* Read only file system		*/
#define	EMLINK	31	/* Too many links			*/
#define	EPIPE	32	/* Broken pipe				*/

/* math software */
#define	EDOM	33	/* Math arg out of domain of func	*/
#define	ERANGE	34	/* Math result not representable	*/

execargs.h

#if	vax
char **execargs = (char**)(0x7ffffffc);
#endif
#if	pdp11
char **execargs = (char**)(-2);
#endif

sgtty.h

/*
 * Structure for stty and gtty system calls.
 */

struct sgttyb {
	char	sg_ispeed;		/* input speed */
	char	sg_ospeed;		/* output speed */
	char	sg_erase;		/* erase character */
	char	sg_kill;		/* kill character */
	int	sg_flags;		/* mode flags */
};

/*
 * Modes
 */
#define	HUPCL	01
#define	XTABS	02
#define	LCASE	04
#define	ECHO	010
#define	CRMOD	020
#define	RAW	040
#define	ODDP	0100
#define	EVENP	0200
#define ANYP	0300
#define	NLDELAY	001400
#define	TBDELAY	002000
#define	CRDELAY	030000
#define	VTDELAY	040000
#define BSDELAY 0100000
#define ALLDELAY 0177400

/*
 * Delay algorithms
 */
#define	CR0	0
#define	CR1	010000
#define	CR2	020000
#define	CR3	030000
#define	NL0	0
#define	NL1	000400
#define	NL2	001000
#define	NL3	001400
#define	TAB0	0
#define	TAB1	002000
#define	NOAL	004000
#define	FF0	0
#define	FF1	040000
#define	BS0	0
#define	BS1	0100000

/*
 * Speeds
 */
#define B0	0
#define B50	1
#define B75	2
#define B110	3
#define B134	4
#define B150	5
#define B200	6
#define B300	7
#define B600	8
#define B1200	9
#define	B1800	10
#define B2400	11
#define B4800	12
#define B9600	13
#define EXTA	14
#define EXTB	15

/*
 *	ioctl arguments
 */
#define FIOCLEX		(('f'<<8)|1)
#define FIONCLEX	(('f'<<8)|2)
#define	TIOCHPCL	(('t'<<8)|2)
#define	TIOCGETP	(('t'<<8)|8)
#define	TIOCSETP	(('t'<<8)|9)
#define	TIOCEXCL	(('t'<<8)|13)
#define	TIOCNXCL	(('t'<<8)|14)

signal.h

#define	SIGHUP	1	/* hangup */
#define	SIGINT	2	/* interrupt (rubout) */
#define	SIGQUIT	3	/* quit (ASCII FS) */
#define	SIGILL	4	/* illegal instruction (not reset when caught)*/
#define	SIGTRAP	5	/* trace trap (not reset when caught) */
#define	SIGIOT	6	/* IOT instruction */
#define	SIGEMT	7	/* EMT instruction */
#define	SIGFPE	8	/* floating point exception */
#define	SIGKILL	9	/* kill (cannot be caught or ignored) */
#define	SIGBUS	10	/* bus error */
#define	SIGSEGV	11	/* segmentation violation */
#define	SIGSYS	12	/* bad argument to system call */
#define	SIGPIPE	13	/* write on a pipe with no one to read it */
#define	SIGALRM	14	/* alarm clock */
#define	SIGTERM	15	/* software termination signal from kill */
#define	SIGUSR1	16	/* user defined signal 1 */
#define	SIGUSR2	17	/* user defined signal 2 */
#define	SIGCLD	18	/* death of a child */
#define	SIGPWR	19	/* power-fail restart */

#if RT
#define	SIGQIT	3	/* quit */
#define	SIGTRC	5	/* trace trap (not reset when caught) */
#endif

#define	NSIG	20

int	(*signal())();
#define	SIG_DFL	(int (*)())0
#if lint
#define	SIG_IGN (int (*)())0
#else
#define	SIG_IGN	(int (*)())1
#endif

sys/acct.h

/*
 * Accounting structures
 */

typedef	ushort comp_t;		/* "floating point" */
		/* 13-bit fraction, 3-bit exponent  */

struct	acct
{
	char	ac_flag;		/* Accounting flag */
	char	ac_stat;		/* Exit status */
	ushort	ac_uid;			/* Accounting user ID */
	ushort	ac_gid;			/* Accounting group ID */
	dev_t	ac_tty;			/* control typewriter */
	time_t	ac_btime;		/* Beginning time */
	comp_t	ac_utime;		/* acctng user time in clock ticks */
	comp_t	ac_stime;		/* acctng system time in clock ticks */
	comp_t	ac_etime;		/* acctng elapsed time in clock ticks */
	comp_t	ac_mem;			/* memory usage */
	comp_t	ac_io;			/* chars transferred */
	comp_t	ac_rw;			/* blocks read or written */
	char	ac_comm[8];		/* command name */
};	

extern	struct	acct	acctbuf;
extern	struct	inode	*acctp;		/* inode of accounting file */

#define	AFORK	01		/* has executed fork, but no exec */
#define	ASU	02		/* used super-user privileges */
#define	ACCTF	0300		/* record type: 00 = acct */

sys/ioctl.h

#define	IOCTYPE	0xff00

#define	TIOC	('T'<<8)
#define	TCGETA	(TIOC|1)
#define	TCSETA	(TIOC|2)
#define	TCSETAW	(TIOC|3)
#define	TCSETAF	(TIOC|4)
#define	TCSBRK	(TIOC|5)
#define	TCXONC	(TIOC|6)
#define	TCFLSH	(TIOC|7)

#define	TCDSET	(TIOC|32)

#define	LDIOC	('D'<<8)
#define	LDOPEN	(LDIOC|0)
#define	LDCLOSE	(LDIOC|1)
#define	LDCHG	(LDIOC|2)

#define	tIOC	('t'<<8)
#define	TIOCGETP	(tIOC|8)
#define	TIOCSETP	(tIOC|9)

#define	LIOC	('l'<<8)
#define	LIOCGETP	(LIOC|1)
#define	LIOCSETP	(LIOC|2)
#define	LIOCGETS	(LIOC|5)
#define	LIOCSETS	(LIOC|6)

#define	DIOC	('d'<<8)
#define	DIOCGETC	(DIOC|1)
#define	DIOCGETB	(DIOC|2)
#define	DIOCSETE	(DIOC|3)

#define	VPM	('V'<<8)
#define	VPMCMD	(VPM|8)
#define	VPMERRS	(VPM|9)
#define	VPMRPT	(VPM|10)
#define	VPMTRCO	(VPM|16)

sys/stat.h

/*
 * Structure of the result of stat
 */

struct	stat
{
	dev_t	st_dev;
	ino_t	st_ino;
	ushort 	st_mode;
	short  	st_nlink;
	ushort 	st_uid;
	ushort 	st_gid;
	dev_t	st_rdev;
	off_t	st_size;
	time_t	st_atime;
	time_t	st_mtime;
	time_t	st_ctime;
};

#define	S_IFMT	0170000		/* type of file */
#define		S_IFDIR	0040000	/* directory */
#define		S_IFCHR	0020000	/* character special */
#define		S_IFBLK	0060000	/* block special */
#define		S_IFREG	0100000	/* regular */
#define		S_IFIFO	0010000	/* fifo */
#define	S_ISUID	04000		/* set user id on execution */
#define	S_ISGID	02000		/* set group id on execution */
#define	S_ISVTX	01000		/* save swapped text even after use */
#define	S_IREAD	00400		/* read permission, owner */
#define	S_IWRITE	00200		/* write permission, owner */
#define	S_IEXEC	00100		/* execute/search permission, owner */

sys/tty.h

/*
 * A clist structure is the head of a linked list queue of characters.
 * The routines getc* and putc* manipulate these structures.
 */
struct clist {
	int	c_cc;		/* character count */
	struct cblock *c_cf;	/* pointer to first */
	struct cblock *c_cl;	/* pointer to last */
};

/*
 * A tty structure is needed for each UNIX character device that
 * is used for normal terminal IO.
 */
#define	NCC	8
struct tty {
	struct	clist t_rawq;	/* raw input queue */
	struct	clist t_canq;	/* canonical queue */
	struct	clist t_outq;	/* output queue */
	struct cblock *t_buf;	/* buffer pointer */
	int	(* t_proc)();	/* routine for device functions */
	ushort	t_iflag;	/* input modes */
	ushort	t_oflag;	/* output modes */
	ushort	t_cflag;	/* control modes */
	ushort	t_lflag;	/* line discipline modes */
	short	t_state;	/* internal state */
	short	t_pgrp;		/* process group name */
	char	t_line;		/* line discipline */
	char	t_delct;	/* delimiter count */
	char	t_col;		/* current column */
	char	t_row;		/* current row */
	unsigned char	t_cc[NCC];	/* settable control chars */
};

/*
 * The structure of a clist block
 */
#define	CLSIZE	24
struct cblock {
	struct cblock *c_next;
	char	c_first;
	char	c_last;
	char	c_data[CLSIZE];
};

extern struct cblock cfree[];
extern struct cblock * getcb();
extern struct cblock * getcf();
extern struct clist ttnulq;

struct chead {
	struct cblock *c_next;
	int	c_size;
};
extern struct chead cfreelist;

struct inter {
	int	cnt;
};

/* control characters */
#define	VINTR	0
#define	VQUIT	1
#define	VERASE	2
#define	VKILL	3
#define	VEOF	4
#define	VEOL	5
#define	VMIN	4
#define	VTIME	5

/* default control chars */
#define	CINTR	0177	/* DEL */
#define	CQUIT	034	/* FS, cntl | */
#define	CERASE	'#'
#define	CKILL	'@'
#define	CEOF	04	/* cntl d */
#define	CSTART	021	/* cntl q */
#define	CSTOP	023	/* cntl s */

#define	TTIPRI	28
#define	TTOPRI	29

/* limits */
extern int ttlowat[], tthiwat[];
#define	TTYHOG	256
#define	TTXOLO	60
#define	TTXOHI	180

/* input modes */
#define	IGNBRK	0000001
#define	BRKINT	0000002
#define	IGNPAR	0000004
#define	PARMRK	0000010
#define	INPCK	0000020
#define	ISTRIP	0000040
#define	INLCR	0000100
#define	IGNCR	0000200
#define	ICRNL	0000400
#define	IUCLC	0001000
#define	IXON	0002000
#define	IXANY	0004000
#define	IXOFF	0010000

/* output modes */
#define	OPOST	0000001
#define	OLCUC	0000002
#define	ONLCR	0000004
#define	OCRNL	0000010
#define	ONOCR	0000020
#define	ONLRET	0000040
#define	OFILL	0000100
#define	OFDEL	0000200
#define	NLDLY	0000400
#define	NL0	0
#define	NL1	0000400
#define	CRDLY	0003000
#define	CR0	0
#define	CR1	0001000
#define	CR2	0002000
#define	CR3	0003000
#define	TABDLY	0014000
#define	TAB0	0
#define	TAB1	0004000
#define	TAB2	0010000
#define	TAB3	0014000
#define	BSDLY	0020000
#define	BS0	0
#define	BS1	0020000
#define	VTDLY	0040000
#define	VT0	0
#define	VT1	0040000
#define	FFDLY	0100000
#define	FF0	0
#define	FF1	0100000

/* control modes */
#define	CBAUD	0000017
#define	B0	0
#define	B50	0000001
#define	B75	0000002
#define	B110	0000003
#define	B134	0000004
#define	B150	0000005
#define	B200	0000006
#define	B300	0000007
#define	B600	0000010
#define	B1200	0000011
#define	B1800	0000012
#define	B2400	0000013
#define	B4800	0000014
#define	B9600	0000015
#define	EXTA	0000016
#define	EXTB	0000017
#define	CSIZE	0000060
#define	CS5	0
#define	CS6	0000020
#define	CS7	0000040
#define	CS8	0000060
#define	CSTOPB	0000100
#define	CREAD	0000200
#define	PARENB	0000400
#define	PARODD	0001000
#define	HUPCL	0002000
#define	CLOCAL	0004000

/* line discipline 0 modes */
#define	ISIG	0000001
#define	ICANON	0000002
#define	XCASE	0000004
#define	ECHO	0000010
#define	ECHOE	0000020
#define	ECHOK	0000040
#define	ECHONL	0000100
#define	NOFLSH	0000200

#define	SSPEED	7	/* default speed: 300 baud */

/* Hardware bits */
#define	DONE	0200
#define	IENABLE	0100
#define	OVERRUN	040000
#define	FRERROR	020000
#define	PERROR	010000

/* Internal state */
#define	TIMEOUT	01		/* Delay timeout in progress */
#define	WOPEN	02		/* Waiting for open to complete */
#define	ISOPEN	04		/* Device is open */
#define	TBLOCK	010
#define	CARR_ON	020		/* Software copy of carrier-present */
#define	BUSY	040		/* Output in progress */
#define	OASLP	0100		/* Wakeup when output done */
#define	IASLP	0200		/* Wakeup when input done */
#define	TTSTOP	0400		/* Output stopped by ctl-s */
#define	EXTPROC	01000		/* External processing */
#define	TACT	02000
#define	ESC	04000		/* Last char escape */
#define	RTO	010000
#define	TTIOW	020000
#define	TTXON	040000
#define	TTXOFF	0100000

/* l_output status */
#define	CPRES	1

/* device commands */
#define	T_OUTPUT	0
#define	T_TIME		1
#define	T_SUSPEND	2
#define	T_RESUME	3
#define	T_BLOCK		4
#define	T_UNBLOCK	5
#define	T_RFLUSH	6
#define	T_WFLUSH	7
#define	T_BREAK		8

/*
 * Ioctl control packet
 */
struct termio {
	ushort	c_iflag;	/* input modes */
	ushort	c_oflag;	/* output modes */
	ushort	c_cflag;	/* control modes */
	ushort	c_lflag;	/* line discipline modes */
	char	c_line;		/* line discipline */
	unsigned char	c_cc[NCC];	/* control chars */
};

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UNIX System III

a.out.h

ctype.h

errno.h

execargs.h

sgtty.h

signal.h

sys/acct.h

sys/ioctl.h

sys/stat.h

sys/tty.h