/*	@(#)pc_dir.h 1.1 94/10/31 SMI	*/

/*
 * Copyright (c) 1989 by Sun Microsystems, Inc.
 */

#define	PCFNAMESIZE	8
#define	PCFEXTSIZE	3
#define	PCMAXPATHLEN	64

struct pctime {
	short pct_time;			/* hh:mm:ss (little endian) */
	short pct_date;			/* yy:mm:dd (little endian) */
};

/*
 * Shifts and masks for time and date fields, in host byte order.
 */
#define	SECSHIFT	0
#define	SECMASK		0x1F
#define	MINSHIFT	5
#define	MINMASK		0x3F
#define	HOURSHIFT	11
#define	HOURMASK	0x1F

#define	DAYSHIFT	0
#define	DAYMASK		0x1F
#define	MONSHIFT	5
#define	MONMASK		0x0F
#define	YEARSHIFT	9
#define	YEARMASK	0x7F

struct pcdir {
	char pcd_filename[PCFNAMESIZE];	/* file name */
	char pcd_ext[PCFEXTSIZE];	/* file extension */
	u_char pcd_attr;
	long pcd_gen;			/* generation number for NFS */
	u_char pcd_unused[6];
	struct pctime pcd_mtime;	/* create/modify time */
	short pcd_scluster;		/* starting cluster (little endian) */
	long pcd_size;			/* file size (little endian) */
};

#ifdef notdef
struct pcfid {
	u_short pcfid_len;
	long	pcfid_fileno;
	long	pcfid_gen;
};
#endif notdef

/*
 * The first char of the file name has special meaning as follows:
 */
#define	PCD_UNUSED	((char)0x00)	/* entry has never been used */
#define	PCD_ERASED	((char)0xE5)	/* entry was erased */

/*
 * File attributes.
 */
#define	PCA_RDONLY	0x01	/* file is read only */
#define	PCA_HIDDEN	0x02	/* file is hidden */
#define	PCA_SYSTEM	0x04	/* system file */
#define	PCA_LABEL	0x08	/* entry contains the volume label */
#define	PCA_DIR		0x10	/* subdirectory */
#define	PCA_ARCH	0x20	/* file has been modified since last backup */

/*
 * macros for converting to/from upper or lower case.
 * users may give and get names in lower case, but they are stored on the
 * disk in upper case to be PCDOS compatable
 */
#define	toupper(C)	(((C) >= 'a' && (C) <= 'z')? (C) - 'a' + 'A': (C))
#define	tolower(C)	(((C) >= 'A' && (C) <= 'Z')? (C) - 'A' + 'a': (C))

#ifdef KERNEL
extern void pc_tvtopct();		/* convert timeval to pctime */
extern void pc_pcttotv();		/* convert pctime to timeval */
extern int pc_validchar();		/* check character valid in filename */
#endif