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author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
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committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
commit | 008d0be72b2f160382c6e880765e96b64a050c65 (patch) | |
tree | 36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/mt.c | |
parent | 611becfb8726c60cb060368541ad98191d4532f5 (diff) | |
download | tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2 |
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/mt.c')
-rw-r--r-- | release/src/router/busybox/mt.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/release/src/router/busybox/mt.c b/release/src/router/busybox/mt.c new file mode 100644 index 00000000..49dc70ac --- /dev/null +++ b/release/src/router/busybox/mt.c @@ -0,0 +1,121 @@ +/* vi: set sw=4 ts=4: */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mtio.h> +#include <sys/fcntl.h> +#include "busybox.h" + +struct mt_opcodes { + char *name; + short value; +}; + +/* missing: eod/seod, stoptions, stwrthreshold, densities */ +static const struct mt_opcodes opcodes[] = { + {"bsf", MTBSF}, + {"bsfm", MTBSFM}, + {"bsr", MTBSR}, + {"bss", MTBSS}, + {"datacompression", MTCOMPRESSION}, + {"eom", MTEOM}, + {"erase", MTERASE}, + {"fsf", MTFSF}, + {"fsfm", MTFSFM}, + {"fsr", MTFSR}, + {"fss", MTFSS}, + {"load", MTLOAD}, + {"lock", MTLOCK}, + {"mkpart", MTMKPART}, + {"nop", MTNOP}, + {"offline", MTOFFL}, + {"rewoffline", MTOFFL}, + {"ras1", MTRAS1}, + {"ras2", MTRAS2}, + {"ras3", MTRAS3}, + {"reset", MTRESET}, + {"retension", MTRETEN}, + {"rewind", MTREW}, + {"seek", MTSEEK}, + {"setblk", MTSETBLK}, + {"setdensity", MTSETDENSITY}, + {"drvbuffer", MTSETDRVBUFFER}, + {"setpart", MTSETPART}, + {"tell", MTTELL}, + {"wset", MTWSM}, + {"unload", MTUNLOAD}, + {"unlock", MTUNLOCK}, + {"eof", MTWEOF}, + {"weof", MTWEOF}, + {0, 0} +}; + +extern int mt_main(int argc, char **argv) +{ + const char *file = "/dev/tape"; + const struct mt_opcodes *code = opcodes; + struct mtop op; + struct mtpos position; + int fd, mode; + + if (argc < 2) { + show_usage(); + } + + if (strcmp(argv[1], "-f") == 0) { + if (argc < 4) { + show_usage(); + } + file = argv[2]; + argv += 2; + argc -= 2; + } + + while (code->name != 0) { + if (strcmp(code->name, argv[1]) == 0) + break; + code++; + } + + if (code->name == 0) { + error_msg("unrecognized opcode %s.", argv[1]); + return EXIT_FAILURE; + } + + op.mt_op = code->value; + if (argc >= 3) + op.mt_count = atoi(argv[2]); + else + op.mt_count = 1; /* One, not zero, right? */ + + switch (code->value) { + case MTWEOF: + case MTERASE: + case MTWSM: + case MTSETDRVBUFFER: + mode = O_WRONLY; + break; + + default: + mode = O_RDONLY; + break; + } + + if ((fd = open(file, mode, 0)) < 0) + perror_msg_and_die("%s", file); + + switch (code->value) { + case MTTELL: + if (ioctl(fd, MTIOCPOS, &position) < 0) + perror_msg_and_die("%s", file); + printf ("At block %d.\n", (int) position.mt_blkno); + break; + + default: + if (ioctl(fd, MTIOCTOP, &op) != 0) + perror_msg_and_die("%s", file); + break; + } + + return EXIT_SUCCESS; +} |