#ifndef lint
static const char rcsid[] =
- "$Id: rmt.c,v 1.17 2002/04/12 13:02:16 stelian Exp $";
+ "$Id: rmt.c,v 1.23 2003/02/12 11:02:31 stelian Exp $";
#endif /* not linux */
/*
*/
#include <config.h>
#include <compatlfs.h>
+#include <rmtflags.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/mtio.h>
#include <string.h>
#include <unistd.h>
-int tape = -1;
+static int tape = -1;
-char *record;
-int maxrecsize = -1;
+static char *record;
+static int maxrecsize = -1;
#define SSIZE 64
-char device[SSIZE];
-char count[SSIZE], filemode[SSIZE], pos[SSIZE], op[SSIZE];
+static char device[SSIZE];
+static char count[SSIZE], filemode[SSIZE], pos[SSIZE], op[SSIZE];
-char resp[BUFSIZ];
+static char resp[BUFSIZ];
-FILE *debug;
+static FILE *debug;
#define DEBUG(f) if (debug) fprintf(debug, f)
#define DEBUG1(f,a) if (debug) fprintf(debug, f, a)
#define DEBUG2(f,a1,a2) if (debug) fprintf(debug, f, a1, a2)
* Support for Sun's extended RMT protocol
* code originally written by Jörg Schilling <schilling@fokus.gmd.de>
* and relicensed by his permission from GPL to BSD for use in dump.
+ *
+ * rmt_version is 0 for regular clients (Linux included)
+ * rmt_version is 1 for extended clients (Sun especially). In this case
+ * we support some extended commands (see below) and we remap
+ * the ioctl commands to the UNIX "standard", as per:
+ * ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio
+ *
+ * In order to use rmt version 1, a client must send "I-1\n0\n"
+ * before issuing the other I commands.
*/
-#define RMTI_VERSION -1
-#define RMT_VERSION 1
+static int rmt_version = 0;
+#define RMTI_VERSION -1
+#define RMT_VERSION 1
/* Extended 'i' commands */
-#define RMTI_CACHE 0
-#define RMTI_NOCACHE 1
-#define RMTI_RETEN 2
-#define RMTI_ERASE 3
-#define RMTI_EOM 4
-#define RMTI_NBSF 5
+#define RMTI_CACHE 0
+#define RMTI_NOCACHE 1
+#define RMTI_RETEN 2
+#define RMTI_ERASE 3
+#define RMTI_EOM 4
+#define RMTI_NBSF 5
/* Extended 's' comands */
-#define MTS_TYPE 'T'
-#define MTS_DSREG 'D'
-#define MTS_ERREG 'E'
-#define MTS_RESID 'R'
-#define MTS_FILENO 'F'
-#define MTS_BLKNO 'B'
-#define MTS_FLAGS 'f'
-#define MTS_BF 'b'
+#define MTS_TYPE 'T'
+#define MTS_DSREG 'D'
+#define MTS_ERREG 'E'
+#define MTS_RESID 'R'
+#define MTS_FILENO 'F'
+#define MTS_BLKNO 'B'
+#define MTS_FLAGS 'f'
+#define MTS_BF 'b'
char *checkbuf __P((char *, int));
void error __P((int));
int
main(int argc, char *argv[])
{
- int rval = 0;
+ OFF_T rval = 0;
char c;
- int n, i, cc;
+ int n, i, cc, oflags;
unsigned long block = 0;
argc--, argv++;
getstring(device);
getstring(filemode);
DEBUG2("rmtd: O %s %s\n", device, filemode);
+ /*
+ * Translate extended GNU syntax into its numeric platform equivalent
+ */
+ oflags = rmtflags_toint(filemode);
+#ifdef O_TEXT
+ /*
+ * Default to O_BINARY the client may not know that we need it.
+ */
+ if ((oflags & O_TEXT) == 0)
+ oflags |= O_BINARY;
+#endif
+ DEBUG2("rmtd: O %s %d\n", device, oflags);
/*
* XXX the rmt protocol does not provide a means to
* specify the permission bits; allow rw for everyone,
* as modified by the users umask
*/
- tape = OPEN(device, atoi(filemode), 0666);
+ tape = OPEN(device, oflags, 0666);
if (tape < 0)
goto ioerror;
block = 0;
getstring(count);
getstring(pos);
DEBUG2("rmtd: L %s %s\n", count, pos);
- rval = LSEEK(tape, (off_t)atol(count), atoi(pos));
+ rval = LSEEK(tape, (OFF_T)atoll(count), atoi(pos));
if (rval < 0)
goto ioerror;
goto respond;
rval = read(tape, record, n);
if (rval < 0)
goto ioerror;
- (void)sprintf(resp, "A%d\n", rval);
+ (void)sprintf(resp, "A%lld\n", (long long)rval);
(void)write(1, resp, strlen(resp));
(void)write(1, record, rval);
block += n >> 10;
DEBUG2("rmtd: I %s %s\n", op, count);
if (atoi(op) == RMTI_VERSION) {
rval = RMT_VERSION;
- } else {
- struct mtop mtop;
- mtop.mt_op = atoi(op);
- mtop.mt_count = atoi(count);
- if (ioctl(tape, MTIOCTOP, (char *)&mtop) < 0)
- goto ioerror;
- rval = mtop.mt_count;
+ rmt_version = 1;
+ }
+ else {
+ struct mtop mtop;
+ mtop.mt_op = -1;
+ if (rmt_version) {
+ /* rmt version 1, assume UNIX client */
+ switch (atoi(op)) {
+#ifdef MTWEOF
+ case 0:
+ mtop.mt_op = MTWEOF;
+ break;
+#endif
+#ifdef MTFSF
+ case 1:
+ mtop.mt_op = MTFSF;
+ break;
+#endif
+#ifdef MTBSF
+ case 2:
+ mtop.mt_op = MTBSF;
+ break;
+#endif
+#ifdef MTFSR
+ case 3:
+ mtop.mt_op = MTFSR;
+ break;
+#endif
+#ifdef MTBSR
+ case 4:
+ mtop.mt_op = MTBSR;
+ break;
+#endif
+#ifdef MTREW
+ case 5:
+ mtop.mt_op = MTREW;
+ break;
+#endif
+#ifdef MTOFFL
+ case 6:
+ mtop.mt_op = MTOFFL;
+ break;
+#endif
+#ifdef MTNOP
+ case 7:
+ mtop.mt_op = MTNOP;
+ break;
+#endif
+ }
+ if (mtop.mt_op == -1) {
+ errno = EINVAL;
+ goto ioerror;
+ }
+ }
+ else {
+ /* rmt version 0, assume linux client */
+ mtop.mt_op = atoi(op);
+ }
+ mtop.mt_count = atoi(count);
+ if (ioctl(tape, MTIOCTOP, (char *)&mtop) < 0)
+ goto ioerror;
+ rval = mtop.mt_count;
}
goto respond;
if (ioctl(tape, MTIOCGET, (char *)&mtget) < 0)
goto ioerror;
rval = sizeof (mtget);
- (void)sprintf(resp, "A%d\n", rval);
+ (void)sprintf(resp, "A%lld\n", (long long)rval);
(void)write(1, resp, strlen(resp));
(void)write(1, (char *)&mtget, sizeof (mtget));
goto top;
exit(3);
}
respond:
- DEBUG1("rmtd: A %d\n", rval);
- (void)sprintf(resp, "A%d\n", rval);
+ DEBUG1("rmtd: A %lld\n", (long long)rval);
+ (void)sprintf(resp, "A%lld\n", (long long)rval);
(void)write(1, resp, strlen(resp));
goto top;
ioerror:
git.wh0rd.org / dump.git / blobdiff