C++ (Cpp) open_cur_file Examples

Example #1

File: menu_fdisk.c Project: andreiw/polaris

/*
 * This routine implements the 'fdisk' command.  It simply runs
 * the fdisk command on the current disk.
 * Use of this is restricted to interactive mode only.
 */
int
c_fdisk()
{

	char		buf[MAXPATHLEN];
	char		pbuf[MAXPATHLEN];
	struct stat	statbuf;

	/*
	 * We must be in interactive mode to use the fdisk command
	 */
	if (option_f != (char *)NULL || isatty(0) != 1 || isatty(1) != 1) {
		err_print("Fdisk command is for interactive use only!\n");
		return (-1);
	}

	/*
	 * There must be a current disk type and a current disk
	 */
	if (cur_dtype == NULL) {
		err_print("Current Disk Type is not set.\n");
		return (-1);
	}

	/*
	 * If disk is larger than 1TB then an EFI label is required
	 * and there is no point in running fdisk
	 */
	if (cur_dtype->capacity > INFINITY) {
		err_print("This disk must use an EFI label.\n");
		return (-1);
	}

	/*
	 * Before running the fdisk command, get file status of
	 *	/dev/rdsk/cn[tn]dnp0 path to see if this disk
	 *	supports fixed disk partition table.
	 */
	(void) get_pname(&pbuf[0]);
	if (stat(pbuf, (struct stat *)&statbuf) == -1 ||
	    !S_ISCHR(statbuf.st_mode)) {
		err_print(
		"Disk does not support fixed disk partition table\n");
		return (0);
	}

	/*
	 * Run the fdisk program.
	 */
	(void) snprintf(buf, sizeof (buf), "fdisk %s\n", pbuf);
	(void) system(buf);

	/*
	 * Open cur_file with "p0" path for accessing the fdisk table
	 */
	(void) open_cur_file(FD_USE_P0_PATH);

	/*
	 * Get solaris partition information in the fdisk partition table
	 */
	if (get_solaris_part(cur_file, &cur_disk->fdisk_part) == -1) {
		err_print("No fdisk solaris partition found\n");
		cur_disk->fdisk_part.numsect = 0;  /* No Solaris */
	}

	/*
	 * Restore cur_file with cur_disk->disk_path
	 */
	(void) open_cur_file(FD_USE_CUR_DISK_PATH);

	return (0);
}

Example #2

File: ctlr_ata.c Project: AlainODea/illumos-gate

/*ARGSUSED6*/
#if	defined(i386)
int
ata_rdwr(int dir, int fd, diskaddr_t blk64, int secnt, caddr_t bufaddr,
		int flags, int *xfercntp)
#else	/* defined(i386) */
static int
ata_rdwr(int dir, int fd, diskaddr_t blk64, int secnt, caddr_t bufaddr,
		int flags, int *xfercntp)
#endif	/* defined(i386) */
{
	int	tmpsec;
	struct dadkio_rwcmd	dadkio_rwcmd;
	blkaddr_t	blkno;

	blkno = (blkaddr_t)blk64;
	bzero((caddr_t)&dadkio_rwcmd, sizeof (struct dadkio_rwcmd));

	tmpsec = secnt * cur_blksz;

	/* Doing raw read */
	dadkio_rwcmd.cmd = (dir == DIR_READ) ? DADKIO_RWCMD_READ :
					DADKIO_RWCMD_WRITE;
	dadkio_rwcmd.blkaddr = blkno;
	dadkio_rwcmd.buflen  = tmpsec;
	dadkio_rwcmd.flags   = flags;
	dadkio_rwcmd.bufaddr = bufaddr;

	media_error = 0;
	if (cur_ctype->ctype_ctype == DKC_PCMCIA_ATA) {
		/*
		 * PCATA requires to use "p0" when calling
		 *	DIOCTL_RWCMD ioctl() to read/write the label
		 */
		(void) close(fd);
		(void) open_cur_file(FD_USE_P0_PATH);
		fd = cur_file;
	}

	if (ioctl(fd, DIOCTL_RWCMD, &dadkio_rwcmd) == -1) {
		err_print("DIOCTL_RWCMD: %s\n", strerror(errno));
		return (1);
	}

	if (cur_ctype->ctype_ctype == DKC_PCMCIA_ATA) {
		/* Restore cur_file with cur_disk->disk_path */
		(void) open_cur_file(FD_USE_CUR_DISK_PATH);
	}

	switch (dadkio_rwcmd.status.status) {
	case  DADKIO_STAT_NOT_READY:
			disk_error = DISK_STAT_NOTREADY;
			break;
	case  DADKIO_STAT_RESERVED:
			disk_error = DISK_STAT_RESERVED;
			break;
	case  DADKIO_STAT_WRITE_PROTECTED:
			disk_error = DISK_STAT_DATA_PROTECT;
			break;
	case DADKIO_STAT_MEDIUM_ERROR:
			media_error = 1;
			break;
	}

	if (dadkio_rwcmd.status.status) {
		if ((flags & F_SILENT) == 0)
			err_print(dadkrawioerrs[dadkio_rwcmd.status.status],
				dadkio_rwcmd.status.failed_blk);
		return (1);
	}
	return (0);
}