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bcf1365c | 1 | /* |
ab567d4c KB |
2 | * Copyright (c) 1980 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that the above copyright notice and this paragraph are | |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
bcf1365c DF |
16 | */ |
17 | ||
18 | #ifndef lint | |
19 | char copyright[] = | |
ab567d4c | 20 | "@(#) Copyright (c) 1980 The Regents of the University of California.\n\ |
bcf1365c | 21 | All rights reserved.\n"; |
ab567d4c | 22 | #endif /* not lint */ |
bcf1365c DF |
23 | |
24 | #ifndef lint | |
ab567d4c KB |
25 | static char sccsid[] = "@(#)mt.c 5.3 (Berkeley) %G%"; |
26 | #endif /* not lint */ | |
bcf1365c | 27 | |
d8c0aff8 | 28 | /* |
209f2457 SL |
29 | * mt -- |
30 | * magnetic tape manipulation program | |
d8c0aff8 | 31 | */ |
d8c0aff8 BJ |
32 | #include <stdio.h> |
33 | #include <ctype.h> | |
34 | #include <sys/types.h> | |
35 | #include <sys/mtio.h> | |
36 | #include <sys/ioctl.h> | |
37 | ||
209f2457 | 38 | #define equal(s1,s2) (strcmp(s1, s2) == 0) |
209f2457 | 39 | |
d8c0aff8 BJ |
40 | struct commands { |
41 | char *c_name; | |
42 | int c_code; | |
fdb20def | 43 | int c_ronly; |
d8c0aff8 | 44 | } com[] = { |
209f2457 SL |
45 | { "weof", MTWEOF, 0 }, |
46 | { "eof", MTWEOF, 0 }, | |
47 | { "fsf", MTFSF, 1 }, | |
48 | { "bsf", MTBSF, 1 }, | |
49 | { "fsr", MTFSR, 1 }, | |
50 | { "bsr", MTBSR, 1 }, | |
51 | { "rewind", MTREW, 1 }, | |
52 | { "offline", MTOFFL, 1 }, | |
53 | { "rewoffl", MTOFFL, 1 }, | |
54 | { "status", MTNOP, 1 }, | |
55 | { 0 } | |
d8c0aff8 BJ |
56 | }; |
57 | ||
58 | int mtfd; | |
59 | struct mtop mt_com; | |
209f2457 | 60 | struct mtget mt_status; |
d8c0aff8 BJ |
61 | char *tape; |
62 | ||
63 | main(argc, argv) | |
209f2457 | 64 | char **argv; |
d8c0aff8 BJ |
65 | { |
66 | char line[80], *getenv(); | |
67 | register char *cp; | |
68 | register struct commands *comp; | |
69 | ||
1c7902fe | 70 | if (argc > 2 && (equal(argv[1], "-t") || equal(argv[1], "-f"))) { |
d8c0aff8 BJ |
71 | argc -= 2; |
72 | tape = argv[2]; | |
73 | argv += 2; | |
74 | } else | |
75 | if ((tape = getenv("TAPE")) == NULL) | |
209f2457 | 76 | tape = DEFTAPE; |
1c7902fe SL |
77 | if (argc < 2) { |
78 | fprintf(stderr, "usage: mt [ -f device ] command [ count ]\n"); | |
79 | exit(1); | |
80 | } | |
d8c0aff8 BJ |
81 | cp = argv[1]; |
82 | for (comp = com; comp->c_name != NULL; comp++) | |
83 | if (strncmp(cp, comp->c_name, strlen(cp)) == 0) | |
84 | break; | |
85 | if (comp->c_name == NULL) { | |
86 | fprintf(stderr, "mt: don't grok \"%s\"\n", cp); | |
87 | exit(1); | |
88 | } | |
fdb20def BJ |
89 | if ((mtfd = open(tape, comp->c_ronly ? 0 : 2)) < 0) { |
90 | perror(tape); | |
91 | exit(1); | |
92 | } | |
209f2457 SL |
93 | if (comp->c_code != MTNOP) { |
94 | mt_com.mt_op = comp->c_code; | |
95 | mt_com.mt_count = (argc > 2 ? atoi(argv[2]) : 1); | |
96 | if (mt_com.mt_count < 0) { | |
97 | fprintf(stderr, "mt: negative repeat count\n"); | |
98 | exit(1); | |
99 | } | |
100 | if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0) { | |
61fc63ff | 101 | fprintf(stderr, "%s %s %d ", tape, comp->c_name, |
209f2457 SL |
102 | mt_com.mt_count); |
103 | perror("failed"); | |
104 | exit(2); | |
105 | } | |
106 | } else { | |
107 | if (ioctl(mtfd, MTIOCGET, (char *)&mt_status) < 0) { | |
108 | perror("mt"); | |
109 | exit(2); | |
110 | } | |
111 | status(&mt_status); | |
112 | } | |
113 | } | |
114 | ||
09868be4 SL |
115 | #ifdef vax |
116 | #include <vaxmba/mtreg.h> | |
117 | #include <vaxmba/htreg.h> | |
118 | ||
119 | #include <vaxuba/utreg.h> | |
120 | #include <vaxuba/tmreg.h> | |
209f2457 | 121 | #undef b_repcnt /* argh */ |
09868be4 SL |
122 | #include <vaxuba/tsreg.h> |
123 | #endif | |
209f2457 | 124 | |
61fc63ff | 125 | #ifdef sun |
fba0261b SL |
126 | #include <sundev/tmreg.h> |
127 | #include <sundev/arreg.h> | |
61fc63ff SL |
128 | #endif |
129 | ||
24ecf073 SL |
130 | #ifdef tahoe |
131 | #include <tahoevba/cyreg.h> | |
132 | #endif | |
133 | ||
209f2457 SL |
134 | struct tape_desc { |
135 | short t_type; /* type of magtape device */ | |
136 | char *t_name; /* printing name */ | |
137 | char *t_dsbits; /* "drive status" register */ | |
138 | char *t_erbits; /* "error" register */ | |
139 | } tapes[] = { | |
09868be4 | 140 | #ifdef vax |
209f2457 SL |
141 | { MT_ISTS, "ts11", 0, TSXS0_BITS }, |
142 | { MT_ISHT, "tm03", HTDS_BITS, HTER_BITS }, | |
143 | { MT_ISTM, "tm11", 0, TMER_BITS }, | |
144 | { MT_ISMT, "tu78", MTDS_BITS, 0 }, | |
145 | { MT_ISUT, "tu45", UTDS_BITS, UTER_BITS }, | |
61fc63ff SL |
146 | #endif |
147 | #ifdef sun | |
148 | { MT_ISCPC, "TapeMaster", TMS_BITS, 0 }, | |
fba0261b | 149 | { MT_ISAR, "Archive", ARCH_CTRL_BITS, ARCH_BITS }, |
24ecf073 SL |
150 | #endif |
151 | #ifdef tahoe | |
152 | { MT_ISCY, "cipher", CYS_BITS, CYCW_BITS }, | |
09868be4 | 153 | #endif |
209f2457 SL |
154 | { 0 } |
155 | }; | |
156 | ||
157 | /* | |
158 | * Interpret the status buffer returned | |
159 | */ | |
160 | status(bp) | |
161 | register struct mtget *bp; | |
162 | { | |
163 | register struct tape_desc *mt; | |
164 | ||
165 | for (mt = tapes; mt->t_type; mt++) | |
166 | if (mt->t_type == bp->mt_type) | |
167 | break; | |
168 | if (mt->t_type == 0) { | |
169 | printf("unknown tape drive type (%d)\n", bp->mt_type); | |
170 | return; | |
171 | } | |
61fc63ff | 172 | printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid); |
209f2457 | 173 | printreg("ds", bp->mt_dsreg, mt->t_dsbits); |
61fc63ff SL |
174 | printreg("\ner", bp->mt_erreg, mt->t_erbits); |
175 | putchar('\n'); | |
209f2457 SL |
176 | } |
177 | ||
178 | /* | |
179 | * Print a register a la the %b format of the kernel's printf | |
180 | */ | |
181 | printreg(s, v, bits) | |
61fc63ff SL |
182 | char *s; |
183 | register char *bits; | |
184 | register unsigned short v; | |
209f2457 SL |
185 | { |
186 | register int i, any = 0; | |
187 | register char c; | |
188 | ||
61fc63ff SL |
189 | if (bits && *bits == 8) |
190 | printf("%s=%o", s, v); | |
191 | else | |
192 | printf("%s=%x", s, v); | |
193 | bits++; | |
209f2457 SL |
194 | if (v && bits) { |
195 | putchar('<'); | |
196 | while (i = *bits++) { | |
197 | if (v & (1 << (i-1))) { | |
198 | if (any) | |
199 | putchar(','); | |
200 | any = 1; | |
201 | for (; (c = *bits) > 32; bits++) | |
202 | putchar(c); | |
203 | } else | |
204 | for (; *bits > 32; bits++) | |
205 | ; | |
206 | } | |
61fc63ff | 207 | putchar('>'); |
d8c0aff8 BJ |
208 | } |
209 | } |