diff options
Diffstat (limited to 'mt.c')
-rw-r--r-- | mt.c | 121 |
1 files changed, 0 insertions, 121 deletions
@@ -1,121 +0,0 @@ -/* 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; -} |