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MiNT 0.96 pl14
/*
* NOTE: This file only works if sizeof(int) == 2!
* UNLESS: you have an ANSI compiler and use prototypes
*
* Copyright 1991,1992 Eric R. Smith. This file may be re-distributed
* as long as this notice remains intact.
*/
#ifndef _filesys_h
#define _filesys_h
#ifndef P_
# ifdef __STDC__
# define P_(x) x
# else
# define P_(x) ()
# endif
#endif
#ifdef _SHORTINT
#define _wORD int
#endif
#ifndef _wORD
#ifdef __MSHORT__ /* 16 bit integers? */
#define _wORD int
#else
#define _wORD short
#endif
#endif
#define NAME_MAX 32
#define PATH_MAX 128
struct filesys; /* forward declaration */
struct devdrv; /* ditto */
typedef struct f_cookie {
struct filesys *fs; /* filesystem that knows about this cookie */
unsigned short dev; /* device info (e.g. Rwabs device number) */
unsigned short aux; /* extra data that the file system may want */
long index; /* this+dev uniquely identifies a file */
} fcookie;
/* structure for opendir/readdir/closedir */
typedef struct dirstruct {
fcookie fc; /* cookie for this directory */
unsigned short index; /* index of the current entry */
unsigned short flags; /* flags (e.g. tos or not) */
#define TOS_SEARCH 0x01
char fsstuff[60]; /* anything else the file system wants */
/* NOTE: this must be at least 45 bytes */
} DIR;
/* structure for getxattr */
typedef struct xattr {
unsigned short mode;
/* file types */
#define S_IFMT 0170000 /* mask to select file type */
#define S_IFCHR 0020000 /* BIOS special file */
#define S_IFDIR 0040000 /* directory file */
#define S_IFREG 0100000 /* regular file */
#define S_IFIFO 0120000 /* FIFO */
#define S_IMEM 0140000 /* memory region or process */
#define S_IFLNK 0160000 /* symbolic link */
/* special bits: setuid, setgid, sticky bit */
#define S_ISUID 04000
#define S_ISGID 02000
#define S_ISVTX 01000
/* file access modes for user, group, and other*/
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
#define S_IRGRP 0040
#define S_IWGRP 0020
#define S_IXGRP 0010
#define S_IROTH 0004
#define S_IWOTH 0002
#define S_IXOTH 0001
#define DEFAULT_DIRMODE (0777)
#define DEFAULT_MODE (0666)
long index;
unsigned short dev;
unsigned short reserved1;
unsigned short nlink;
unsigned short uid;
unsigned short gid;
long size;
long blksize, nblocks;
short mtime, mdate;
short atime, adate;
short ctime, cdate;
short attr;
short reserved2;
long reserved3[2];
} XATTR;
typedef struct fileptr {
short links; /* number of copies of this descriptor */
unsigned short flags; /* file open mode and other file flags */
long pos; /* position in file */
long devinfo; /* device driver specific info */
fcookie fc; /* file system cookie for this file */
struct devdrv *dev; /* device driver that knows how to deal with this */
struct fileptr *next; /* link to next fileptr for this file */
} FILEPTR;
/* lock structure */
struct flock {
short l_type; /* type of lock */
#define F_RDLCK O_RDONLY
#define F_WRLCK O_WRONLY
#define F_UNLCK 3
short l_whence; /* SEEK_SET, SEEK_CUR, SEEK_END */
long l_start; /* start of locked region */
long l_len; /* length of locked region */
short l_pid; /* pid of locking process
(F_GETLK only) */
};
/* LOCK structure used by the kernel internally */
typedef struct ilock {
struct flock l;
struct ilock *next;
long reserved[4];
} LOCK;
typedef struct devdrv {
long (*open) P_((FILEPTR *f));
long (*write) P_((FILEPTR *f, char *buf, long bytes));
long (*read) P_((FILEPTR *f, char *buf, long bytes));
long (*lseek) P_((FILEPTR *f, long where, _wORD whence));
long (*ioctl) P_((FILEPTR *f, _wORD mode, void *buf));
long (*datime) P_((FILEPTR *f, _wORD *timeptr, _wORD rwflag));
long (*close) P_((FILEPTR *f, _wORD pid));
long (*select) P_((FILEPTR *f, long proc, _wORD mode));
void (*unselect) P_((FILEPTR *f, long proc, _wORD mode));
long reserved[3]; /* reserved for future use */
} DEVDRV;
typedef struct filesys {
struct filesys *next; /* link to next file system on chain */
long fsflags;
#define FS_KNOPARSE 0x01 /* kernel shouldn't do parsing */
#define FS_CASESENSITIVE 0x02 /* file names are case sensitive */
#define FS_NOXBIT 0x04 /* if a file can be read, it can be executed */
long (*root) P_((_wORD drv, fcookie *fc));
long (*lookup) P_((fcookie *dir, char *name, fcookie *fc));
long (*creat) P_((fcookie *dir, char *name, unsigned _wORD mode,
_wORD attrib, fcookie *fc));
DEVDRV *(*getdev) P_((fcookie *fc, long *devspecial));
long (*getxattr) P_((fcookie *fc, XATTR *xattr));
long (*chattr) P_((fcookie *fc, _wORD attr));
long (*chown) P_((fcookie *fc, _wORD uid, _wORD gid));
long (*chmode) P_((fcookie *fc, unsigned _wORD mode));
long (*mkdir) P_((fcookie *dir, char *name, unsigned _wORD mode));
long (*rmdir) P_((fcookie *dir, char *name));
long (*remove) P_((fcookie *dir, char *name));
long (*getname) P_((fcookie *relto, fcookie *dir, char *pathname));
long (*rename) P_((fcookie *olddir, char *oldname,
fcookie *newdir, char *newname));
long (*opendir) P_((DIR *dirh, _wORD tosflag));
long (*readdir) P_((DIR *dirh, char *nm, _wORD nmlen, fcookie *fc));
long (*rewinddir) P_((DIR *dirh));
long (*closedir) P_((DIR *dirh));
long (*pathconf) P_((fcookie *dir, _wORD which));
long (*dfree) P_((fcookie *dir, long *buf));
long (*writelabel) P_((fcookie *dir, char *name));
long (*readlabel) P_((fcookie *dir, char *name, _wORD namelen));
long (*symlink) P_((fcookie *dir, char *name, char *to));
long (*readlink) P_((fcookie *dir, char *buf, _wORD len));
long (*hardlink) P_((fcookie *fromdir, char *fromname,
fcookie *todir, char *toname));
long (*fscntl) P_((fcookie *dir, char *name, _wORD cmd, long arg));
long (*dskchng) P_((_wORD drv));
long zero;
} FILESYS;
/*
* this is the structure passed to loaded file systems to tell them
* about the kernel
*/
typedef long (*_LongFunc)();
struct kerinfo {
short maj_version; /* kernel version number */
short min_version; /* minor kernel version number */
unsigned short default_mode; /* default file access mode */
short reserved1; /* room for expansion */
/* OS functions */
_LongFunc *bios_tab; /* pointer to the BIOS entry points */
_LongFunc *dos_tab; /* pointer to the GEMDOS entry points */
/* media change vector */
void (*drvchng) P_((short));
/* Debugging stuff */
void (*trace) P_((char *, ...));
void (*debug) P_((char *, ...));
void (*alert) P_((char *, ...));
void (*fatal) P_((char *, ...));
/* memory allocation functions */
void * (*kmalloc) P_((long));
void (*kfree) P_((void *));
void * (*umalloc) P_((long));
void (*ufree) P_((void *));
/* utility functions for string manipulation */
short (*strnicmp) P_((char *, char *, _wORD));
short (*stricmp) P_((char *, char *));
char * (*strlwr) P_((char *));
char * (*strupr) P_((char *));
short (*sprintf) P_((char *, char *, ...));
/* utility functions for manipulating time */
void (*millis_time) P_((unsigned long, _wORD *));
long (*unixtim) P_((unsigned _wORD, unsigned _wORD));
long (*dostim) P_((long));
/* utility functions for dealing with pauses */
void (*nap) P_((unsigned short));
void (*sleep) P_((_wORD que, long cond));
void (*wake) P_((_wORD que, long cond));
void (*wakeselect) P_((long param));
/* file system utility functions */
short (*denyshare) P_((FILEPTR *, FILEPTR *));
LOCK * (*denylock) P_((LOCK *, LOCK *));
/* reserved for future use */
long res2[9];
};
/* flags for open() modes */
#define O_RWMODE 0x03 /* isolates file read/write mode */
# define O_RDONLY 0x00
# define O_WRONLY 0x01
# define O_RDWR 0x02
# define O_EXEC 0x03 /* execute file; used by kernel only */
#define O_APPEND 0x08 /* all writes go to end of file */
#define O_SHMODE 0x70 /* isolates file sharing mode */
# define O_COMPAT 0x00 /* compatibility mode */
# define O_DENYRW 0x10 /* deny both read and write access */
# define O_DENYW 0x20 /* deny write access to others */
# define O_DENYR 0x30 /* deny read access to others */
# define O_DENYNONE 0x40 /* don't deny any access to others */
#define O_NOINHERIT 0x80 /* children don't get this file descriptor */
#define O_NDELAY 0x100 /* don't block for i/o on this file */
#define O_CREAT 0x200 /* create file if it doesn't exist */
#define O_TRUNC 0x400 /* truncate file to 0 bytes if it does exist */
#define O_EXCL 0x800 /* fail open if file exists */
#define O_USER 0x0fff /* isolates user-settable flag bits */
#define O_GLOBAL 0x1000 /* for Fopen: opens a global file handle */
/* kernel mode bits -- the user can't set these! */
#define O_TTY 0x2000 /* FILEPTR refers to a terminal */
#define O_HEAD 0x4000 /* FILEPTR is the master side of a fifo */
#define O_LOCK 0x8000 /* FILEPTR has had locking Fcntl's performed */
/* GEMDOS file attributes */
/* macros to be applied to FILEPTRS to determine their type */
#define is_terminal(f) (f->flags & O_TTY)
/* lseek() origins */
#define SEEK_SET 0 /* from beginning of file */
#define SEEK_CUR 1 /* from current location */
#define SEEK_END 2 /* from end of file */
/* The requests for Dpathconf() */
#define DP_IOPEN 0 /* internal limit on # of open files */
#define DP_MAXLINKS 1 /* max number of hard links to a file */
#define DP_PATHMAX 2 /* max path name length */
#define DP_NAMEMAX 3 /* max length of an individual file name */
#define DP_ATOMIC 4 /* # of bytes that can be written atomically */
#define DP_TRUNC 5 /* file name truncation behavior */
# define DP_NOTRUNC 0 /* long filenames give an error */
# define DP_AUTOTRUNC 1 /* long filenames truncated */
# define DP_DOSTRUNC 2 /* DOS truncation rules in effect */
#define DP_CASE 6 /* file name case conversion behavior */
# define DP_CASESENS 0 /* case sensitive */
# define DP_CASECONV 1 /* case always converted */
# define DP_CASEINSENS 2 /* case insensitive, preserved */
#define DP_MAXREQ 6 /* highest legal request */
/* Dpathconf and Sysconf return this when a value is not limited
(or is limited only by available memory) */
#define UNLIMITED 0x7fffffffL
/* various character constants and defines for TTY's */
#define MiNTEOF 0x0000ff1a /* 1a == ^Z */
/* defines for tty_read */
#define RAW 0
#define COOKED 0x1
#define NOECHO 0
#define ECHO 0x2
#define ESCSEQ 0x04 /* cursor keys, etc. get escape sequences */
/* constants for various Fcntl commands */
/* constants for Fcntl calls */
#define F_DUPFD 0 /* handled by kernel */
#define F_GETFD 1 /* handled by kernel */
#define F_SETFD 2 /* handled by kernel */
# define FD_CLOEXEC 1 /* close on exec flag */
#define F_GETFL 3 /* handled by kernel */
#define F_SETFL 4 /* handled by kernel */
#define F_GETLK 5
#define F_SETLK 6
#define F_SETLKW 7
#define FSTAT (('F'<< 8) | 0) /* handled by kernel */
#define FIONREAD (('F'<< 8) | 1)
#define FIONWRITE (('F'<< 8) | 2)
#define TIOCGETP (('T'<< 8) | 0)
#define TIOCSETP (('T'<< 8) | 1)
#define TIOCSETN TIOCSETP
#define TIOCGETC (('T'<< 8) | 2)
#define TIOCSETC (('T'<< 8) | 3)
#define TIOCGLTC (('T'<< 8) | 4)
#define TIOCSLTC (('T'<< 8) | 5)
#define TIOCGPGRP (('T'<< 8) | 6)
#define TIOCSPGRP (('T'<< 8) | 7)
#define TIOCFLUSH (('T'<< 8) | 8)
#define TIOCSTOP (('T'<< 8) | 9)
#define TIOCSTART (('T'<< 8) | 10)
#define TIOCGWINSZ (('T'<< 8) | 11)
#define TIOCSWINSZ (('T'<< 8) | 12)
#define TIOCGXKEY (('T'<< 8) | 13)
#define TIOCSXKEY (('T'<< 8) | 14)
#define TIOCIBAUD (('T'<< 8) | 18)
#define TIOCOBAUD (('T'<< 8) | 19)
#define TIOCCBRK (('T'<< 8) | 20)
#define TIOCSBRK (('T'<< 8) | 21)
#define TIOCGFLAGS (('T'<< 8) | 22)
#define TIOCSFLAGS (('T'<< 8) | 23)
#define TCURSOFF (('c'<< 8) | 0)
#define TCURSON (('c'<< 8) | 1)
#define TCURSBLINK (('c'<< 8) | 2)
#define TCURSSTEADY (('c'<< 8) | 3)
#define TCURSSRATE (('c'<< 8) | 4)
#define TCURSGRATE (('c'<< 8) | 5)
#define PPROCADDR (('P'<< 8) | 1)
#define PBASEADDR (('P'<< 8) | 2)
#define PCTXTSIZE (('P'<< 8) | 3)
#define PSETFLAGS (('P'<< 8) | 4)
#define PGETFLAGS (('P'<< 8) | 5)
#define PTRACESFLAGS (('P'<< 8) | 6)
#define PTRACEGFLAGS (('P'<< 8) | 7)
# define P_ENABLE (1 << 0) /* enable tracing */
#define PTRACEGO (('P'<< 8) | 8)
#define PTRACEFLOW (('P'<< 8) | 9)
#define PTRACESTEP (('P'<< 8) | 10)
#define PTRACE11 (('P'<< 8) | 11) /* unused, reserved */
#define SHMGETBLK (('M'<< 8) | 0)
#define SHMSETBLK (('M'<< 8) | 1)
/* terminal control constants (tty.sg_flags) */
#define T_CRMOD 0x0001
#define T_CBREAK 0x0002
#define T_ECHO 0x0004
#define T_RAW 0x0010
#define T_TOS 0x0080
#define T_TOSTOP 0x0100
#define T_XKEY 0x0200 /* Fread returns escape sequences for
cursor keys, etc. */
/* the following are terminal status flags (tty.state) */
/* (the low byte of tty.state indicates a part of an escape sequence still
* hasn't been read by Fread, and is an index into that escape sequence)
*/
#define TS_ESC 0x00ff
#define TS_HOLD 0x1000 /* hold (e.g. ^S/^Q) */
#define TS_COOKED 0x8000 /* interpret control chars */
/* structures for terminals */
struct tchars {
char t_intrc;
char t_quitc;
char t_startc;
char t_stopc;
char t_eofc;
char t_brkc;
};
struct ltchars {
char t_suspc;
char t_dsuspc;
char t_rprntc;
char t_flushc;
char t_werasc;
char t_lnextc;
};
struct sgttyb {
char sg_ispeed;
char sg_ospeed;
char sg_erase;
char sg_kill;
unsigned short sg_flags;
};
struct winsize {
short ws_row;
short ws_col;
short ws_xpixel;
short ws_ypixel;
};
struct xkey {
short xk_num;
char xk_def[8];
};
struct tty {
short pgrp; /* process group of terminal */
short state; /* terminal status, e.g. stopped */
short use_cnt; /* number of times terminal is open */
short res1; /* reserved for future expansion */
struct sgttyb sg;
struct tchars tc;
struct ltchars ltc;
struct winsize wsiz;
long rsel; /* selecting process for read */
long wsel; /* selecting process for write */
char *xkey; /* extended keyboard table */
long rsrvd[3]; /* reserved for future expansion */
};
/* defines and declarations for Dcntl operations */
#define DEV_INSTALL 0xde02
#define DEV_NEWBIOS 0xde01
#define DEV_NEWTTY 0xde00
struct dev_descr {
DEVDRV *driver;
short dinfo;
short flags;
struct tty *tty;
long reserved[4];
};
/* defines for TOS attribute bytes */
#ifndef FA_RDONLY
#define FA_RDONLY 0x01
#define FA_HIDDEN 0x02
#define FA_SYSTEM 0x04
#define FA_LABEL 0x08
#define FA_DIR 0x10
#define FA_CHANGED 0x20
#endif
#endif /* _filesys_h */
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