*** empty log message ***
This commit is contained in:
François Pinard
368
src/rmt.c
368
src/rmt.c
@@ -42,230 +42,240 @@ char copyright[] =
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#else
|
||||
long lseek();
|
||||
long lseek ();
|
||||
#endif
|
||||
|
||||
#ifdef STDC_HEADERS
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#else
|
||||
extern char *malloc();
|
||||
extern char *malloc ();
|
||||
#endif
|
||||
|
||||
int tape = -1;
|
||||
int tape = -1;
|
||||
|
||||
char *record;
|
||||
int maxrecsize = -1;
|
||||
char *checkbuf();
|
||||
void getstring();
|
||||
void error();
|
||||
char *record;
|
||||
int maxrecsize = -1;
|
||||
char *checkbuf ();
|
||||
void getstring ();
|
||||
void error ();
|
||||
|
||||
#define SSIZE 64
|
||||
char device[SSIZE];
|
||||
char count[SSIZE], mode[SSIZE], pos[SSIZE], op[SSIZE];
|
||||
char device[SSIZE];
|
||||
char count[SSIZE], mode[SSIZE], pos[SSIZE], op[SSIZE];
|
||||
|
||||
extern errno;
|
||||
extern char *sys_errlist[];
|
||||
char resp[BUFSIZ];
|
||||
extern errno;
|
||||
extern char *sys_errlist[];
|
||||
char resp[BUFSIZ];
|
||||
|
||||
FILE *debug;
|
||||
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)
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
main (argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
{
|
||||
int rval;
|
||||
char c;
|
||||
int n, i, cc;
|
||||
int rval;
|
||||
char c;
|
||||
int n, i, cc;
|
||||
|
||||
argc--, argv++;
|
||||
if (argc > 0) {
|
||||
debug = fopen(*argv, "w");
|
||||
if (debug == 0)
|
||||
exit(1);
|
||||
(void) setbuf(debug, (char *)0);
|
||||
}
|
||||
argc--, argv++;
|
||||
if (argc > 0)
|
||||
{
|
||||
debug = fopen (*argv, "w");
|
||||
if (debug == 0)
|
||||
exit (1);
|
||||
(void) setbuf (debug, (char *) 0);
|
||||
}
|
||||
top:
|
||||
errno = 0;
|
||||
rval = 0;
|
||||
if (read(0, &c, 1) != 1)
|
||||
exit(0);
|
||||
switch (c) {
|
||||
errno = 0;
|
||||
rval = 0;
|
||||
if (read (0, &c, 1) != 1)
|
||||
exit (0);
|
||||
switch (c)
|
||||
{
|
||||
|
||||
case 'O':
|
||||
if (tape >= 0)
|
||||
(void) close(tape);
|
||||
getstring(device); getstring(mode);
|
||||
DEBUG2("rmtd: O %s %s\n", device, mode);
|
||||
case 'O':
|
||||
if (tape >= 0)
|
||||
(void) close (tape);
|
||||
getstring (device);
|
||||
getstring (mode);
|
||||
DEBUG2 ("rmtd: O %s %s\n", device, mode);
|
||||
#if defined (i386) && defined (AIX)
|
||||
/* This is alleged to fix a byte ordering problem. */
|
||||
/* I'm quite suspicious if it's right. -- mib */
|
||||
{
|
||||
int oflag = atoi (mode);
|
||||
int nflag = 0;
|
||||
if ((oflag & 3) == 0)
|
||||
nflag |= O_RDONLY;
|
||||
if (oflag & 1)
|
||||
nflag |= O_WRONLY;
|
||||
if (oflag & 2)
|
||||
nflag |= O_RDWR;
|
||||
if (oflag & 0x0008)
|
||||
nflag |= O_APPEND;
|
||||
if (oflag & 0x0200)
|
||||
nflag |= O_CREAT;
|
||||
if (oflag & 0x0400)
|
||||
nflag |= O_TRUNC;
|
||||
if (oflag & 0x0800)
|
||||
nflag |= O_EXCL;
|
||||
tape = open (device, nflag, 0666);
|
||||
}
|
||||
#else
|
||||
tape = open(device, atoi(mode),0666);
|
||||
/* This is alleged to fix a byte ordering problem. */
|
||||
/* I'm quite suspicious if it's right. -- mib */
|
||||
{
|
||||
int oflag = atoi (mode);
|
||||
int nflag = 0;
|
||||
if ((oflag & 3) == 0)
|
||||
nflag |= O_RDONLY;
|
||||
if (oflag & 1)
|
||||
nflag |= O_WRONLY;
|
||||
if (oflag & 2)
|
||||
nflag |= O_RDWR;
|
||||
if (oflag & 0x0008)
|
||||
nflag |= O_APPEND;
|
||||
if (oflag & 0x0200)
|
||||
nflag |= O_CREAT;
|
||||
if (oflag & 0x0400)
|
||||
nflag |= O_TRUNC;
|
||||
if (oflag & 0x0800)
|
||||
nflag |= O_EXCL;
|
||||
tape = open (device, nflag, 0666);
|
||||
}
|
||||
#else
|
||||
tape = open (device, atoi (mode), 0666);
|
||||
#endif
|
||||
if (tape < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
if (tape < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
|
||||
case 'C':
|
||||
DEBUG("rmtd: C\n");
|
||||
getstring(device); /* discard */
|
||||
if (close(tape) < 0)
|
||||
goto ioerror;
|
||||
tape = -1;
|
||||
goto respond;
|
||||
case 'C':
|
||||
DEBUG ("rmtd: C\n");
|
||||
getstring (device); /* discard */
|
||||
if (close (tape) < 0)
|
||||
goto ioerror;
|
||||
tape = -1;
|
||||
goto respond;
|
||||
|
||||
case 'L':
|
||||
getstring(count); getstring(pos);
|
||||
DEBUG2("rmtd: L %s %s\n", count, pos);
|
||||
rval = lseek(tape, (long) atoi(count), atoi(pos));
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
case 'L':
|
||||
getstring (count);
|
||||
getstring (pos);
|
||||
DEBUG2 ("rmtd: L %s %s\n", count, pos);
|
||||
rval = lseek (tape, (long) atoi (count), atoi (pos));
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
|
||||
case 'W':
|
||||
getstring(count);
|
||||
n = atoi(count);
|
||||
DEBUG1("rmtd: W %s\n", count);
|
||||
record = checkbuf(record, n);
|
||||
for (i = 0; i < n; i += cc) {
|
||||
cc = read(0, &record[i], n - i);
|
||||
if (cc <= 0) {
|
||||
DEBUG("rmtd: premature eof\n");
|
||||
exit(2);
|
||||
}
|
||||
}
|
||||
rval = write(tape, record, n);
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
|
||||
case 'R':
|
||||
getstring(count);
|
||||
DEBUG1("rmtd: R %s\n", count);
|
||||
n = atoi(count);
|
||||
record = checkbuf(record, n);
|
||||
rval = read(tape, record, n);
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
(void) sprintf(resp, "A%d\n", rval);
|
||||
(void) write(1, resp, strlen(resp));
|
||||
(void) write(1, record, rval);
|
||||
goto top;
|
||||
|
||||
case 'I':
|
||||
getstring(op); getstring(count);
|
||||
DEBUG2("rmtd: I %s %s\n", op, count);
|
||||
#ifdef MTIOCTOP
|
||||
{ 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;
|
||||
}
|
||||
#endif
|
||||
goto respond;
|
||||
|
||||
case 'S': /* status */
|
||||
DEBUG("rmtd: S\n");
|
||||
{
|
||||
#ifdef MTIOCGET
|
||||
struct mtget mtget;
|
||||
if (ioctl(tape, MTIOCGET, (char *)&mtget) < 0)
|
||||
goto ioerror;
|
||||
rval = sizeof (mtget);
|
||||
(void) sprintf(resp, "A%d\n", rval);
|
||||
(void) write(1, resp, strlen(resp));
|
||||
(void) write(1, (char *)&mtget, sizeof (mtget));
|
||||
#endif
|
||||
goto top;
|
||||
}
|
||||
|
||||
default:
|
||||
DEBUG1("rmtd: garbage command %c\n", c);
|
||||
exit(3);
|
||||
case 'W':
|
||||
getstring (count);
|
||||
n = atoi (count);
|
||||
DEBUG1 ("rmtd: W %s\n", count);
|
||||
record = checkbuf (record, n);
|
||||
for (i = 0; i < n; i += cc)
|
||||
{
|
||||
cc = read (0, &record[i], n - i);
|
||||
if (cc <= 0)
|
||||
{
|
||||
DEBUG ("rmtd: premature eof\n");
|
||||
exit (2);
|
||||
}
|
||||
}
|
||||
rval = write (tape, record, n);
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
goto respond;
|
||||
|
||||
case 'R':
|
||||
getstring (count);
|
||||
DEBUG1 ("rmtd: R %s\n", count);
|
||||
n = atoi (count);
|
||||
record = checkbuf (record, n);
|
||||
rval = read (tape, record, n);
|
||||
if (rval < 0)
|
||||
goto ioerror;
|
||||
(void) sprintf (resp, "A%d\n", rval);
|
||||
(void) write (1, resp, strlen (resp));
|
||||
(void) write (1, record, rval);
|
||||
goto top;
|
||||
|
||||
case 'I':
|
||||
getstring (op);
|
||||
getstring (count);
|
||||
DEBUG2 ("rmtd: I %s %s\n", op, count);
|
||||
#ifdef MTIOCTOP
|
||||
{
|
||||
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;
|
||||
}
|
||||
#endif
|
||||
goto respond;
|
||||
|
||||
case 'S': /* status */
|
||||
DEBUG ("rmtd: S\n");
|
||||
{
|
||||
#ifdef MTIOCGET
|
||||
struct mtget mtget;
|
||||
if (ioctl (tape, MTIOCGET, (char *) &mtget) < 0)
|
||||
goto ioerror;
|
||||
rval = sizeof (mtget);
|
||||
(void) sprintf (resp, "A%d\n", rval);
|
||||
(void) write (1, resp, strlen (resp));
|
||||
(void) write (1, (char *) &mtget, sizeof (mtget));
|
||||
#endif
|
||||
goto top;
|
||||
}
|
||||
|
||||
default:
|
||||
DEBUG1 ("rmtd: garbage command %c\n", c);
|
||||
exit (3);
|
||||
}
|
||||
respond:
|
||||
DEBUG1("rmtd: A %d\n", rval);
|
||||
(void) sprintf(resp, "A%d\n", rval);
|
||||
(void) write(1, resp, strlen(resp));
|
||||
goto top;
|
||||
DEBUG1 ("rmtd: A %d\n", rval);
|
||||
(void) sprintf (resp, "A%d\n", rval);
|
||||
(void) write (1, resp, strlen (resp));
|
||||
goto top;
|
||||
ioerror:
|
||||
error(errno);
|
||||
goto top;
|
||||
error (errno);
|
||||
goto top;
|
||||
}
|
||||
|
||||
void
|
||||
getstring(bp)
|
||||
char *bp;
|
||||
getstring (bp)
|
||||
char *bp;
|
||||
{
|
||||
int i;
|
||||
char *cp = bp;
|
||||
int i;
|
||||
char *cp = bp;
|
||||
|
||||
for (i = 0; i < SSIZE; i++) {
|
||||
if (read(0, cp+i, 1) != 1)
|
||||
exit(0);
|
||||
if (cp[i] == '\n')
|
||||
break;
|
||||
}
|
||||
cp[i] = '\0';
|
||||
for (i = 0; i < SSIZE; i++)
|
||||
{
|
||||
if (read (0, cp + i, 1) != 1)
|
||||
exit (0);
|
||||
if (cp[i] == '\n')
|
||||
break;
|
||||
}
|
||||
cp[i] = '\0';
|
||||
}
|
||||
|
||||
char *
|
||||
checkbuf(record, size)
|
||||
char *record;
|
||||
int size;
|
||||
checkbuf (record, size)
|
||||
char *record;
|
||||
int size;
|
||||
{
|
||||
if (size <= maxrecsize)
|
||||
return (record);
|
||||
if (record != 0)
|
||||
free(record);
|
||||
record = malloc(size);
|
||||
if (record == 0) {
|
||||
DEBUG("rmtd: cannot allocate buffer space\n");
|
||||
exit(4);
|
||||
}
|
||||
maxrecsize = size;
|
||||
if (size <= maxrecsize)
|
||||
return (record);
|
||||
if (record != 0)
|
||||
free (record);
|
||||
record = malloc (size);
|
||||
if (record == 0)
|
||||
{
|
||||
DEBUG ("rmtd: cannot allocate buffer space\n");
|
||||
exit (4);
|
||||
}
|
||||
maxrecsize = size;
|
||||
#ifdef SO_RCVBUF
|
||||
while (size > 1024 &&
|
||||
setsockopt(0, SOL_SOCKET, SO_RCVBUF, (char *)&size, sizeof (size)) < 0)
|
||||
size -= 1024;
|
||||
while (size > 1024 &&
|
||||
setsockopt (0, SOL_SOCKET, SO_RCVBUF, (char *) &size, sizeof (size)) < 0)
|
||||
size -= 1024;
|
||||
#else
|
||||
size= 1+((size-1)%1024);
|
||||
size = 1 + ((size - 1) % 1024);
|
||||
#endif
|
||||
return (record);
|
||||
return (record);
|
||||
}
|
||||
|
||||
void
|
||||
error(num)
|
||||
int num;
|
||||
error (num)
|
||||
int num;
|
||||
{
|
||||
|
||||
DEBUG2("rmtd: E %d (%s)\n", num, sys_errlist[num]);
|
||||
(void) sprintf(resp, "E%d\n%s\n", num, sys_errlist[num]);
|
||||
(void) write(1, resp, strlen (resp));
|
||||
DEBUG2 ("rmtd: E %d (%s)\n", num, sys_errlist[num]);
|
||||
(void) sprintf (resp, "E%d\n%s\n", num, sys_errlist[num]);
|
||||
(void) write (1, resp, strlen (resp));
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user