/*
		    Low Level Interface Library

            Copyright 1983-2000 Green Hills Software,Inc.

 *  This program is the property of Green Hills Software, Inc,
 *  its contents are proprietary information and no part of it
 *  is to be disclosed to anyone except employees of Green Hills
 *  Software, Inc., or as agreed in writing signed by the President
 *  of Green Hills Software, Inc.
*/
/* ind_stat.c: NON-ANSI access(), fstat(), and stat() facilities. */

#include "indos.h"

#if defined(EMBEDDED)
/******************************************************************************/
/*  #include <unistd.h>							      */
/*  int access(const char *name, int mode)				      */
/*  name is the name of a file, prot is the Logical Or of the following flags */
/*		R_OK	4: readable					      */
/*		W_OK	2: writable					      */
/*		X_OK	1: executable or directory searchable (Unused) 	      */
/*		F_OK	0: file exists					      */
/*  If mode is zero then test only for file existence.			      */
/*  Return 0 if all of the specified operations are possible on the file.     */
/*  Return -1 if any of the specified operations are not possible on the file */
/*  and set errno appropriately.					      */
/******************************************************************************/
int access(const char *name, int mode) {
#pragma ghs nowarning 1547	/* Syscall prototypes might not match */
    return __ghs_syscall(SYSCALL_ACCESS, name, mode);
#pragma ghs endnowarning 1547
}

/******************************************************************************/
/*  #include <stat.h>							      */
/*  int fstat(int fno, struct stat *statptr);				      */
/*									      */
/*  fno is a file number returned by open() or creat().  In the two fields    */
/*  st_dev and st_ino place values which uniquely identify the file or device */
/*  opened on file number fno.  In unix these are the device number and the   */
/*  inode (file) number on the device.					      */
/*  The field st_size is set to the size of the file in bytes, -1 if the size */
/*  is unknown.								      */
/*									      */
/*  Return 0 if the file status is correctly returned.  Return -1 if no file  */
/*  is opened on file number fno, and set errno appropriately.		      */
/******************************************************************************/
int fstat(int fno, struct stat *statptr) {
/*
 *  If no other implementation is provided, return device and inode number 0.
 */
    unsigned int tmp[2];
    
    statptr->st_dev = 0;
    statptr->st_ino = 0;
    statptr->st_size = -1;		/* Don't know size of file */
    statptr->st_mode = 0;

#pragma ghs nowarning 1547	/* Syscall prototypes might not match */
    if (__ghs_syscall(SYSCALL_GETFDATTR, fno, &tmp,
	    (sizeof(tmp[0]))|SYSCALL_ATTR_SIZE|SYSCALL_ATTR_MODE) == -1)
	return -1;
#pragma ghs endnowarning 1547

#if (SYSCALL_ATTR_SIZE >= SYSCALL_ATTR_MODE)
#  error misordered attributes
#endif
    
    statptr->st_size = tmp[0];
    statptr->st_mode = tmp[1];
    
    return(0);
}

/******************************************************************************/
/*  #include <stat.h>							      */
/*  int stat(char *name, struct stat *statptr);				      */
/*									      */
/*  name is the name of a file.  In the two fields st_dev and st_ino place    */
/*  values which uniquely identify the named file or device.  In unix, these  */
/*  are the device number and the inode (file) number on the device.	      */
/*  The field st_size is set to the size of the file in bytes, -1 if the size */
/*  is unknown.								      */
/*									      */
/*  Return 0 if the file status is correctly returned.  Return -1 if no file  */
/*  with that name exists, and set errno appropriately.			      */
/******************************************************************************/
int stat(char *name, struct stat *statptr) {
/*
 *  If no other implementation provided, return device and inode number 0.
 */
    unsigned int tmp[2];

    statptr->st_dev = 0;
    statptr->st_ino = 0;
    statptr->st_size = -1;		/* Don't know size of file */
    statptr->st_mode = 0;

#pragma ghs nowarning 1547	/* Syscall prototypes might not match */
    if (__ghs_syscall(SYSCALL_GETFNATTR, name, &tmp,
	    (sizeof(tmp[0]))|SYSCALL_ATTR_SIZE|SYSCALL_ATTR_MODE) == -1)
	return -1;
#pragma ghs endnowarning 1547

#if (SYSCALL_ATTR_SIZE >= SYSCALL_ATTR_MODE)
#  error misordered attributes
#endif
    
    statptr->st_size = tmp[0];
    statptr->st_mode = tmp[1];
    
    return(0);
}
#else
int _K_empty_file_illegal;
#endif