2 * Copyright (c) 2007, 2008, 2009, 2010 Zmanda, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published
6 * by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
10 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 * Contact information: Zmanda Inc., 465 S. Mathilda Ave., Suite 300
18 * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
21 /* Tape operations for SVR4 systems. Most of this stuff is based on
22 documentation from http://docsrv.sco.com/cgi-bin/man/man?sdi+7 */
26 #include "glib-util.h"
28 /* Uncomment to test on non-SYSV4 systems. */
43 int min_blen, max_blen;
48 gboolean tape_rewind(int fd) {
49 return 0 == ioctl(fd, T_RWD);
52 gboolean tape_fsf(int fd, guint count) {
53 return 0 == ioctl(fd, T_SFF, count);
56 gboolean tape_bsf(int fd, guint count) {
57 return 0 == ioctl(fd, T_SFB, count);
60 gboolean tape_fsr(int fd, guint count) {
61 return 0 == ioctl(fd, T_SBF, count);
64 gboolean tape_bsr(int fd, guint count) {
65 return 0 == ioctl(fd, T_SBB, count);
68 gint tape_fileno(int fd) {
69 return TAPE_POSITION_UNKNOWN;
72 gint tape_eod(int fd G_GNUC_UNUSED) {
73 g_assert_not_reached();
77 gboolean tape_weof(int fd, guint8 count) {
78 return 0 == ioctl(fd, T_WRFILEM, count);
81 gboolean tape_offl(int fd) {
82 return 0 == ioctl(fd, T_UNLOAD);
85 gboolean tape_setcompression(int fd, gboolean on) {
93 return 0 == ioctl(fd, T_SETCOMP, cmd);
96 DeviceStatusFlags tape_is_tape_device(int fd) {
97 /* If we can read block information, it's probably a tape device. */
99 if (0 == ioctl(fd, T_RDBLKLEN, &result)) {
100 return DEVICE_STATUS_SUCCESS;
102 return DEVICE_STATUS_DEVICE_ERROR;
106 DeviceStatusFlags tape_is_ready(int fd G_GNUC_UNUSED, TapeDevice *t_self G_GNUC_UNUSED) {
107 /* No good way to determine this, so assume it's ready */
108 return DEVICE_STATUS_SUCCESS;
111 void tape_device_detect_capabilities(TapeDevice * t_self) {
112 tape_device_set_capabilities(t_self,
113 TRUE, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT, /* fsf*/
114 DEFAULT_FSF_AFTER_FILEMARK, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT, /* fsf_after_filemark*/
115 TRUE, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT, /* bsf*/
116 TRUE, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT, /* fsr*/
117 TRUE, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT, /* bsr*/
118 FALSE, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DEFAULT, /* eom*/
119 FALSE, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DEFAULT, /* bsf_after_eom*/
120 2, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT /* final_filemarks*/