Commit | Line | Data |
---|---|---|
1c7902fe | 1 | static char *sccsid = "@(#)mt.c 4.8 (Berkeley) 83/05/08"; |
d8c0aff8 | 2 | /* |
209f2457 SL |
3 | * mt -- |
4 | * magnetic tape manipulation program | |
d8c0aff8 | 5 | */ |
d8c0aff8 BJ |
6 | #include <stdio.h> |
7 | #include <ctype.h> | |
8 | #include <sys/types.h> | |
9 | #include <sys/mtio.h> | |
10 | #include <sys/ioctl.h> | |
11 | ||
209f2457 | 12 | #define equal(s1,s2) (strcmp(s1, s2) == 0) |
209f2457 | 13 | |
d8c0aff8 BJ |
14 | struct commands { |
15 | char *c_name; | |
16 | int c_code; | |
fdb20def | 17 | int c_ronly; |
d8c0aff8 | 18 | } com[] = { |
209f2457 SL |
19 | { "weof", MTWEOF, 0 }, |
20 | { "eof", MTWEOF, 0 }, | |
21 | { "fsf", MTFSF, 1 }, | |
22 | { "bsf", MTBSF, 1 }, | |
23 | { "fsr", MTFSR, 1 }, | |
24 | { "bsr", MTBSR, 1 }, | |
25 | { "rewind", MTREW, 1 }, | |
26 | { "offline", MTOFFL, 1 }, | |
27 | { "rewoffl", MTOFFL, 1 }, | |
28 | { "status", MTNOP, 1 }, | |
29 | { 0 } | |
d8c0aff8 BJ |
30 | }; |
31 | ||
32 | int mtfd; | |
33 | struct mtop mt_com; | |
209f2457 | 34 | struct mtget mt_status; |
d8c0aff8 BJ |
35 | char *tape; |
36 | ||
37 | main(argc, argv) | |
209f2457 | 38 | char **argv; |
d8c0aff8 BJ |
39 | { |
40 | char line[80], *getenv(); | |
41 | register char *cp; | |
42 | register struct commands *comp; | |
43 | ||
1c7902fe | 44 | if (argc > 2 && (equal(argv[1], "-t") || equal(argv[1], "-f"))) { |
d8c0aff8 BJ |
45 | argc -= 2; |
46 | tape = argv[2]; | |
47 | argv += 2; | |
48 | } else | |
49 | if ((tape = getenv("TAPE")) == NULL) | |
209f2457 | 50 | tape = DEFTAPE; |
1c7902fe SL |
51 | if (argc < 2) { |
52 | fprintf(stderr, "usage: mt [ -f device ] command [ count ]\n"); | |
53 | exit(1); | |
54 | } | |
d8c0aff8 BJ |
55 | cp = argv[1]; |
56 | for (comp = com; comp->c_name != NULL; comp++) | |
57 | if (strncmp(cp, comp->c_name, strlen(cp)) == 0) | |
58 | break; | |
59 | if (comp->c_name == NULL) { | |
60 | fprintf(stderr, "mt: don't grok \"%s\"\n", cp); | |
61 | exit(1); | |
62 | } | |
fdb20def BJ |
63 | if ((mtfd = open(tape, comp->c_ronly ? 0 : 2)) < 0) { |
64 | perror(tape); | |
65 | exit(1); | |
66 | } | |
209f2457 SL |
67 | if (comp->c_code != MTNOP) { |
68 | mt_com.mt_op = comp->c_code; | |
69 | mt_com.mt_count = (argc > 2 ? atoi(argv[2]) : 1); | |
70 | if (mt_com.mt_count < 0) { | |
71 | fprintf(stderr, "mt: negative repeat count\n"); | |
72 | exit(1); | |
73 | } | |
74 | if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0) { | |
61fc63ff | 75 | fprintf(stderr, "%s %s %d ", tape, comp->c_name, |
209f2457 SL |
76 | mt_com.mt_count); |
77 | perror("failed"); | |
78 | exit(2); | |
79 | } | |
80 | } else { | |
81 | if (ioctl(mtfd, MTIOCGET, (char *)&mt_status) < 0) { | |
82 | perror("mt"); | |
83 | exit(2); | |
84 | } | |
85 | status(&mt_status); | |
86 | } | |
87 | } | |
88 | ||
09868be4 SL |
89 | #ifdef vax |
90 | #include <vaxmba/mtreg.h> | |
91 | #include <vaxmba/htreg.h> | |
92 | ||
93 | #include <vaxuba/utreg.h> | |
94 | #include <vaxuba/tmreg.h> | |
209f2457 | 95 | #undef b_repcnt /* argh */ |
09868be4 SL |
96 | #include <vaxuba/tsreg.h> |
97 | #endif | |
209f2457 | 98 | |
61fc63ff | 99 | #ifdef sun |
fba0261b SL |
100 | #include <sundev/tmreg.h> |
101 | #include <sundev/arreg.h> | |
61fc63ff SL |
102 | #endif |
103 | ||
209f2457 SL |
104 | struct tape_desc { |
105 | short t_type; /* type of magtape device */ | |
106 | char *t_name; /* printing name */ | |
107 | char *t_dsbits; /* "drive status" register */ | |
108 | char *t_erbits; /* "error" register */ | |
109 | } tapes[] = { | |
09868be4 | 110 | #ifdef vax |
209f2457 SL |
111 | { MT_ISTS, "ts11", 0, TSXS0_BITS }, |
112 | { MT_ISHT, "tm03", HTDS_BITS, HTER_BITS }, | |
113 | { MT_ISTM, "tm11", 0, TMER_BITS }, | |
114 | { MT_ISMT, "tu78", MTDS_BITS, 0 }, | |
115 | { MT_ISUT, "tu45", UTDS_BITS, UTER_BITS }, | |
61fc63ff SL |
116 | #endif |
117 | #ifdef sun | |
118 | { MT_ISCPC, "TapeMaster", TMS_BITS, 0 }, | |
fba0261b | 119 | { MT_ISAR, "Archive", ARCH_CTRL_BITS, ARCH_BITS }, |
09868be4 | 120 | #endif |
209f2457 SL |
121 | { 0 } |
122 | }; | |
123 | ||
124 | /* | |
125 | * Interpret the status buffer returned | |
126 | */ | |
127 | status(bp) | |
128 | register struct mtget *bp; | |
129 | { | |
130 | register struct tape_desc *mt; | |
131 | ||
132 | for (mt = tapes; mt->t_type; mt++) | |
133 | if (mt->t_type == bp->mt_type) | |
134 | break; | |
135 | if (mt->t_type == 0) { | |
136 | printf("unknown tape drive type (%d)\n", bp->mt_type); | |
137 | return; | |
138 | } | |
61fc63ff | 139 | printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid); |
209f2457 | 140 | printreg("ds", bp->mt_dsreg, mt->t_dsbits); |
61fc63ff SL |
141 | printreg("\ner", bp->mt_erreg, mt->t_erbits); |
142 | putchar('\n'); | |
209f2457 SL |
143 | } |
144 | ||
145 | /* | |
146 | * Print a register a la the %b format of the kernel's printf | |
147 | */ | |
148 | printreg(s, v, bits) | |
61fc63ff SL |
149 | char *s; |
150 | register char *bits; | |
151 | register unsigned short v; | |
209f2457 SL |
152 | { |
153 | register int i, any = 0; | |
154 | register char c; | |
155 | ||
61fc63ff SL |
156 | if (bits && *bits == 8) |
157 | printf("%s=%o", s, v); | |
158 | else | |
159 | printf("%s=%x", s, v); | |
160 | bits++; | |
209f2457 SL |
161 | if (v && bits) { |
162 | putchar('<'); | |
163 | while (i = *bits++) { | |
164 | if (v & (1 << (i-1))) { | |
165 | if (any) | |
166 | putchar(','); | |
167 | any = 1; | |
168 | for (; (c = *bits) > 32; bits++) | |
169 | putchar(c); | |
170 | } else | |
171 | for (; *bits > 32; bits++) | |
172 | ; | |
173 | } | |
61fc63ff | 174 | putchar('>'); |
d8c0aff8 BJ |
175 | } |
176 | } |