99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
|
#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;
|
||
|
|
}
|