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#include "internal.h"
#include <stdio.h>
#include <sys/mtio.h>
#include <sys/fcntl.h>
const char mt_usage[] = "mt [-f device] opcode value\n";
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(struct FileInfo * i, int argc, char * * argv)
{
const char * file = "/dev/tape";
const struct mt_opcodes * code = opcodes;
struct mtop op;
int fd;
if ( strcmp(argv[1], "-f") == 0 ) {
if ( argc < 4 ) {
usage(mt_usage);
return 1;
}
file = argv[2];
argv += 2;
argc -= 2;
}
while ( code->name != 0 ) {
if ( strcmp(code->name, argv[1]) == 0 )
break;
code++;
}
if ( code->name == 0 ) {
fprintf(stderr, "mt: unrecognized opcode %s.\n", argv[1]);
return 1;
}
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 ) {
name_and_error(file);
return 1;
}
if ( ioctl(fd, MTIOCTOP, &op) != 0 ) {
name_and_error(file);
return 1;
}
return 0;
}
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