/* vi: set sw=4 ts=4: */ #include "busybox.h" #include <stdio.h> #include <sys/mtio.h> #include <sys/fcntl.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}, {"rew", 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; int fd; if (argc < 2) { usage(mt_usage); } if (strcmp(argv[1], "-f") == 0) { if (argc < 4) { usage(mt_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.\n", 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? */ if ((fd = open(file, O_RDONLY, 0)) < 0) perror_msg_and_die("%s", file); if (ioctl(fd, MTIOCTOP, &op) != 0) perror_msg_and_die("%s", file); return EXIT_SUCCESS; }