2 * Copyright (c) 2005 Zmanda, Inc. All Rights Reserved.
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License version 2.1 as
6 * published by the Free Software Foundation.
8 * This library 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 Lesser General Public
11 * License for more details.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
17 * Contact information: Zmanda Inc., 505 N Mathlida Ave, Suite 120
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 */
27 /* Uncomment to test on non-SYSV4 systems. */
41 int min_blen, max_blen;
46 gboolean tape_rewind(int fd) {
47 return 0 == ioctl(fd, T_RWD);
50 gboolean tape_fsf(int fd, guint count) {
51 return 0 == ioctl(fd, T_SFF, count);
54 gboolean tape_bsf(int fd, guint count) {
55 return 0 == ioctl(fd, T_SFB, count);
58 gboolean tape_fsr(int fd, guint count) {
59 return 0 == ioctl(fd, T_SBF, count);
62 gboolean tape_bsr(int fd, guint count) {
63 return 0 == ioctl(fd, T_SBB, count);
66 int tape_eod(int fd) {
67 g_assert_not_reached();
71 gboolean tape_weof(int fd, guint8 count) {
72 return 0 == ioctl(fd, T_WRFILEM, count);
75 gboolean tape_setcompression(int fd, gboolean on) {
83 return 0 == ioctl(fd, T_SETCOMP, cmd);
86 ReadLabelStatusFlags tape_is_tape_device(int fd) {
87 /* If we can read block information, it's probably a tape device. */
89 if (0 == ioctl(fd, T_RDBLKLEN, &result)) {
90 return READ_LABEL_STATUS_SUCCESS;
92 dbprintf("tape_is_tape_device: ioctl(MTIOCTOP/MTNOP) failed: %s",
94 return READ_LABEL_STATUS_DEVICE_ERROR;
98 TapeCheckResult tape_is_tape_ready(int fd) {
99 return TAPE_CHECK_UNKNOWN;
102 void tape_device_discover_capabilities(TapeDevice * t_self) {
106 self = DEVICE(t_self);
107 g_return_if_fail(self != NULL);
109 bzero(&val, sizeof(val));
110 g_value_init(&val, FEATURE_SUPPORT_FLAGS_TYPE);
112 g_value_set_flags(&val,
113 FEATURE_STATUS_ENABLED | FEATURE_SURETY_BAD |
114 FEATURE_SOURCE_DEFAULT);
115 device_property_set(self, PROPERTY_FSF, &val);
117 g_value_set_flags(&val,
118 FEATURE_STATUS_ENABLED | FEATURE_SURETY_BAD |
119 FEATURE_SOURCE_DEFAULT);
120 device_property_set(self, PROPERTY_BSF, &val);
122 g_value_set_flags(&val,
123 FEATURE_STATUS_ENABLED | FEATURE_SURETY_BAD |
124 FEATURE_SOURCE_DEFAULT);
125 device_property_set(self, PROPERTY_FSR, &val);
127 g_value_set_flags(&val,
128 FEATURE_STATUS_ENABLED | FEATURE_SURETY_BAD |
129 FEATURE_SOURCE_DEFAULT);
130 device_property_set(self, PROPERTY_BSR, &val);
132 g_value_set_flags(&val,
133 FEATURE_STATUS_DISABLED | FEATURE_SURETY_GOOD |
134 FEATURE_SOURCE_DEFAULT);
135 device_property_set(self, PROPERTY_EOM, &val);
137 g_value_unset_init(&val, G_TYPE_UINT);
138 g_value_set_uint(&val, 2);
139 device_property_set(self, PROPERTY_FINAL_FILEMARKS, &val);