42 	int privileged;  member
53    Since Sun won't accept a non-Sun label on a scsi disk, we must
54    bypass Sun's disk interface and use low-level SCSI commands to read
57    uscsi ioctl interface.  By James Dugal, jpd@usl.edu, 11-96.  Tested
64    Note 2: Sol 2.5 wants mtools to be suid-root, to use the ioctl.  SunOS is
71    int fd = This->fd;  in scsi_init()
79 		sizeof(buf), This->extra_data)==0)  in scsi_init()
81 	   This->tot_sectors=  in scsi_init()
86 	   if(This->tot_sectors < UINT32_MAX)  in scsi_init()
87 		   This->tot_sectors++;  in scsi_init()
89 	   This->scsi_sector_size=  in scsi_init()
93 	   if (This->scsi_sector_size != 512)  in scsi_init()
94 		   fprintf(stderr,"  (scsi_sector_size=%d)\n",This->scsi_sector_size);  in scsi_init()
97 	   return -1;  in scsi_init()
102  * Overflow-safe conversion of bytes to sectors
125 	firstblock=truncMtOffTo32u(where/(mt_off_t)This->scsi_sector_size);  in scsi_io()
127 	offset=(smt_off_t) where % This->scsi_sector_size;  in scsi_io()
128 	nsect=bytesToSectors(offset+len, This->scsi_sector_size);  in scsi_io()
130 	if (This->scsi_sector_size>512)  in scsi_io()
131 		firstblock*=This->scsi_sector_size/512; /* work around a uscsi bug */  in scsi_io()
137 		while (nsect*This->scsi_sector_size>len)  in scsi_io()
138 			--nsect;  in scsi_io()
205 	if(This->privileged)  in scsi_io()
208 	r=scsi_cmd(This->fd, (unsigned char *)cdb, clen, rwcmd, buf,  in scsi_io()
209 		   nsect*This->scsi_sector_size, This->extra_data);  in scsi_io()
211 	if(This->privileged)  in scsi_io()
216 		return -1;  in scsi_io()
226 		memmove(buf,buf+offset,	nsect*This->scsi_sector_size-offset);  in scsi_io()
229 	else return (ssize_t)(nsect*This->scsi_sector_size-offset);  in scsi_io()
258 		*size = This->device_size;  in scsi_get_data()
273 	0, /* pre-allocate */
274 	0, /* dos-convert */
294 	init_head(&This->head, &ScsiDeviceClass, NULL);  in OpenScsi()
295 	This->scsi_sector_size = 512;  in OpenScsi()
299 			This->privileged = IS_PRIVILEGED(dev);  in OpenScsi()
300 		mode |= dev->mode;  in OpenScsi()
309 	This->fd = scsi_open(name, mode, IS_NOLOCK(dev)?0444:0666,  in OpenScsi()
310 			     &This->extra_data);  in OpenScsi()
315 	if (This->fd < 0) {  in OpenScsi()
329 		closeExec(This->fd);  in OpenScsi()
331 	if(LockDevice(This->fd, dev, locked, lockMode, errmsg) < 0)  in OpenScsi()
335 		*maxSize = MAX_OFF_T_B(31+log_2(This->scsi_sector_size));  in OpenScsi()
336 	if(This->privileged)  in OpenScsi()
339 	if(This->privileged)  in OpenScsi()
343 	dev->tot_sectors = This->tot_sectors;  in OpenScsi()
344 	return &This->head;  in OpenScsi()
346 	close(This->fd);  in OpenScsi()