github.com/brouhaha.tapeutils
1
0
Fork 0
mirror of https://github.com/brouhaha/tapeutils.git synced 2026-01-11 23:53:18 +00:00
Code Releases Activity

Import version 0.4 from http://www.brouhaha.com/~eric/software/tapeutils/

Browse Source
This commit is contained in:
Lars Brinkhoff 2016-10-24 19:52:38 +02:00
commit 86e5f36943
6 changed files with 1472 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

339
COPYING Normal file
View File

@ -0,0 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

67
Makefile Normal file
View File

@ -0,0 +1,67 @@
# Makefile for tapeutils
# Copyright 1998, 1999, 2000 Eric Smith
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation. Note that permission is not granted
# to redistribute this program under the terms of any later version of the
# General Public License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# -----------------------------------------------------------------------------
# options
# -----------------------------------------------------------------------------
CFLAGS = -O2
LDFLAGS =
# CFLAGS = -g
# LDFLAGS = -g
# -----------------------------------------------------------------------------
# You shouldn't have to change anything below this point, but if you do please
# let me know why so I can improve this Makefile.
# -----------------------------------------------------------------------------
PACKAGE = tapeutils
VERSION = 0.4
DSTNAME = $(PACKAGE)-$(VERSION)
PROGRAMS = tapecopy tapedump
HEADERS = tapeio.h
SOURCES = tapeio.c tapecopy.c tapedump.c
MISC = COPYING
DISTFILES = $(MISC) Makefile $(HEADERS) $(SOURCES)
all: $(PROGRAMS) $(MISC_TARGETS)
dist: $(DISTFILES)
-rm -rf $(DSTNAME)
mkdir $(DSTNAME)
for f in $(DISTFILES); do ln $$f $(DSTNAME)/$$f; done
tar --gzip -chf $(DSTNAME).tar.gz $(DSTNAME)
-rm -rf $(DSTNAME)
clean:
rm -f $(PROGRAMS) $(MISC_TARGETS) *.o
tapecopy: tapecopy.o tapeio.o
tapedump: tapedump.o tapeio.o
include $(SOURCES:.c=.d)
%.d: %.c
$(CC) -M -MG $(CFLAGS) $< | sed -e 's@ /[^ ]*@@g' -e 's@^\(.*\)\.o:@\1.d \1.o:@' > $@

177
tapecopy.c Normal file
View File

@ -0,0 +1,177 @@
/*
tapecopy
This program uses a modified version of John Wilson's tapeio library to
copy tapes between any of the following:
local tape drives - pathname starting with /dev/
remote tape drives (rmt) - pathname containing a colon
Wilson-format tape image files - any other pathname
Copyright 1999, 2000 Eric Smith
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation. Note that permission is not granted
to redistribute this program under the terms of any other version of the
General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "tapeio.h"
#include "stdio.h"
#include "stdarg.h"
#define MAX_REC_LEN 32768
char *progname;
char *buf;
void print_usage (FILE *f)
{
fprintf (f, "Usage: %s [-v] in out\n", progname);
}
void fatal (int retval, char *fmt, ...)
{
va_list ap;
if (fmt)
{
fprintf (stderr, "%s: ", progname);
va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
va_end (ap);
}
if (retval == 1)
print_usage (stderr);
exit (retval);
}
int main (int argc, char *argv[])
{
int file = 0;
unsigned long filebytes = 0;
unsigned long tapebytes = 0;
int prevlen = -2;
int lencount = 0;
int firstrec = 0;
int len;
int verbose = 0;
char *srcfn = NULL;
char *destfn = NULL;
tape_handle src = NULL;
tape_handle dest = NULL;
progname = argv [0];
while (++argv, --argc)
{
if ((argv [0][0] == '-') && (argv [0][1] != '\0'))
{
if (argv [0][1] == 'v')
verbose++;
else
fatal (1, "unrecognized option '%s'\n", argv [0]);
}
else if (! srcfn)
srcfn = argv [0];
else if (! destfn)
destfn = argv [0];
else
fatal (1, NULL);
}
if (! srcfn)
fatal (1, NULL);
buf = (char *) malloc (MAX_REC_LEN);
if (! buf)
fatal (2, "can't allocate buffer\n");
src = opentape (srcfn, 0, 0);
if (! src)
fatal (3, "can't open source tape\n");
if (destfn)
{
dest = opentape (destfn, 1, 1);
if (! dest)
fatal (4, "can't open dest tape\n");
}
else
verbose++;
for (;;)
{
len = getrec (src, buf, MAX_REC_LEN);
if ((lencount != 0) && ((len == 0) || (len != prevlen)))
{
if (verbose)
{
if (lencount == 1)
printf ("1 record (%d)\n", firstrec);
else
printf ("%d records (%d..%d)\n", lencount, firstrec,
firstrec+lencount-1);
fflush (stdout);
}
filebytes += prevlen * lencount;
firstrec += lencount;
prevlen = -1;
lencount = 0;
}
if (len != 0)
{
if (lencount == 0)
{
if (verbose)
{
printf ("file %d record length %d: ", file, len);
fflush (stdout);
}
}
if (destfn)
putrec (dest, buf, len);
lencount++;
}
else
{
tapebytes += filebytes;
if (verbose)
{
if (prevlen == 0)
printf ("end of tape, %lu total bytes\n", tapebytes);
else
printf ("end of file %d, %lu bytes\n", file, filebytes);
fflush (stdout);
}
if (destfn)
tapemark (dest);
if (prevlen == 0)
break;
file++;
lencount = 0;
firstrec = 0;
filebytes = 0;
}
prevlen = len;
}
closetape (src);
if (destfn)
closetape (dest);
return (0);
}

187
tapedump.c Normal file
View File

@ -0,0 +1,187 @@
/*
tapedump
This program uses a modified version of John Wilson's tapeio library to
copy tapes between any of the following:
local tape drives - pathname starting with /dev/
remote tape drives (rmt) - pathname containing a colon
Wilson-format tape image files - any other pathname
Copyright 1999, 2000 Eric Smith
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation. Note that permission is not granted
to redistribute this program under the terms of any other version of the
General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "tapeio.h"
#include "stdio.h"
#include "stdarg.h"
#define MAX_REC_LEN 32768
char *progname;
void print_usage (FILE *f)
{
fprintf (f, "Usage: %s in\n", progname);
}
void fatal (int retval, char *fmt, ...)
{
va_list ap;
if (fmt)
{
fprintf (stderr, "%s: ", progname);
va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
va_end (ap);
}
if (retval == 1)
print_usage (stderr);
exit (retval);
}
#define BYTES_PER_LINE 16
void dump (FILE *f, char *buf, int len)
{
int i, j;
for (i = 0; i < len; i += BYTES_PER_LINE)
{
fprintf (f, " %04x: ", i);
for (j = 0; j < BYTES_PER_LINE; j++)
if ((i + j) < len)
fprintf (f, "%02x ", 0xff & buf [i+j]);
else
fprintf (f, " ");
for (j = 0; j < BYTES_PER_LINE; j++)
if ((i + j) < len)
{
char c = buf [i+j] & 0x7f;
if ((buf [i+j] >= ' ') && (buf [i+j] <= '~'))
fprintf (f, "%c", buf [i+j]);
else
fprintf (f, ".");
}
else
fprintf (f, " ");
fprintf (f, "\n");
}
}
#ifdef HP_2000_SUPPORT
#define MAX_FN_LEN 6
void dump_hp_2000_file_header (FILE *f, char *buf)
{
unsigned long uid;
char uids [6];
char filename [MAX_FN_LEN + 1];
int i;
uid = ((buf [0] & 0xff) << 8) | (buf [1] & 0xff);
uids [0] = (uid / 1024) + '@';
sprintf (& uids [1], "%03d", uid & 0x3ff);
for (i = 0; i < MAX_FN_LEN; i++)
filename [i] = buf [i+2] & 0x7f;
filename [sizeof (filename) - 1] = '\0';
fprintf (f, " id %s filename '%s'\n", uids, filename);
}
#endif /* HP_2000_SUPPORT */
int main (int argc, char *argv[])
{
int file = 0;
int record = 0;
unsigned long filebytes = 0;
unsigned long tapebytes = 0;
int len;
char *srcfn = NULL;
tape_handle src = NULL;
char *buf;
#ifdef HP_2000_SUPPORT
int hp_2000_hibernate = 0;
#endif /* HP_2000_SUPPORT */
progname = argv [0];
while (++argv, --argc)
{
if ((argv [0][0] == '-') && (argv [0][1] != '\0'))
{
#ifdef HP_2000_SUPPORT
if (argv [0][1] == 'h')
hp_2000_hibernate++;
else
#endif /* HP_2000_SUPPORT */
fatal (1, "unrecognized option '%s'\n", argv [0]);
}
else if (! srcfn)
srcfn = argv [0];
else
fatal (1, NULL);
}
if (! srcfn)
fatal (1, NULL);
buf = (char *) malloc (MAX_REC_LEN);
if (! buf)
fatal (2, "can't allocate buffer\n");
src = opentape (srcfn, 0, 0);
if (! src)
fatal (3, "can't open source tape\n");
for (;;)
{
len = getrec (src, buf, MAX_REC_LEN);
if (len == 0)
{
printf ("total length of file %d = %d records, %d bytes\n",
file, record, filebytes);
tapebytes += filebytes;
file++;
record = 0;
filebytes = 0;
printf ("start of file %d\n", file);
fflush (stdout);
}
else
{
printf ("file %d record %d: length %d\n", file, record, len);
#ifdef HP_2000_SUPPORT
if (hp_2000_hibernate && (file > 0) && (record == 0) && (len >= 24))
dump_hp_2000_file_header (stdout, buf);
#endif /* HP_2000_SUPPORT */
dump (stdout, buf, len);
fflush (stdout);
filebytes += len;
record++;
}
}
closetape (src);
return (0);
}

649
tapeio.c Normal file
View File

@ -0,0 +1,649 @@
/*
Routines to do magtape I/O to local tapes, remote tapes, and tape image
files.
Copyright 1998, 1999 John Wilson and Eric Smith
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation. Note that permission is not granted
to redistribute this program under the terms of any other version of the
General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
08/10/93 JMBW IBM mainframe TCP socket stuff (was using many files).
07/08/94 JMBW Local magtape code.
03/13/95 JMBW Converted to separate routines.
07/19/98 JMBW Added support for "rmt" remote tape protocol.
11/16/98 ELS Provide struct for per-instance variables.
02/06/98 ELS Reorganization, and added skiprec and skipfile.
*/
#include <netdb.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h> /* for lseek() SEEK_SET, SEEK_END under Linux */
#include <errno.h>
#ifdef _AIX /* maybe this will be enough to make it compile on AIX */
#include <sys/tape.h>
#define MTWEOF STWEOF
#define MTREW STREW
#define MTFSR STFSR
#define MTFSF STFSF
#define MTBSR STRSR
#define MTIOCTOP STIOCTOP
/* not sure about these two (SCSI only): */
#define MTSETBLK STSETBLK
#define MTSETDENSITY STSETDENSITY
#define mtop stop
#else
#include <sys/mtio.h>
#endif
#include "tapeio.h"
#define TT_UNK 0
#define TT_TAPE 1 /* honest to god tape drive */
#define TT_IMAGE 2 /* file containing image of a tape */
#define TT_RMT 3 /* rmt tape server */
struct mtape_t
{
int tape_type;
int tapefd; /* tape drive, file, or socket file descriptor */
int seek_ok;
unsigned long bpi; /* tape density (for tape length msg) */
int waccess; /* NZ => tape opened for write access access */
unsigned long count; /* count of frames written to tape */
char netbuf[80]; /* buffer for net commands and responses */
};
#ifndef O_BINARY
#define O_BINARY 0
#endif
/* default tape drive device name */
#define TAPE "/dev/nst0"
/* default tape density */
#define BPI 1600
/* magtape commands */
static struct mtop mt_weof={ MTWEOF, 1 }; /* operation, count */
static struct mtop mt_rew={ MTREW, 1 };
static struct mtop mt_fsr={ MTFSR, 1 };
static struct mtop mt_fsf={ MTFSF, 1 };
static struct mtop mt_bsr={ MTBSR, 1 };
/* SCSI only: */
static struct mtop mt_setblk={ MTSETBLK, 0 }; /* blockize = 0 (variable) */
static struct mtop mt_setden={ MTSETDENSITY, 0x02 }; /* density = 1600 */
#define FAIL(msg) do { fprintf (stderr, msg); goto fail; } while (0)
/* do a write and check the return status, punt on error */
static void dowrite (int handle, char *buf, int len)
{
if (write (handle, buf, len) != len)
{
perror ("?Error on write");
exit (1);
}
}
/* do a read and keep trying until we get all bytes */
static void doread (int handle, char *buf, int len)
{
int n;
while(len)
{
if ((n = read (handle, buf, len)) < 0)
{
perror("?Error on read");
exit (1);
}
if (n == 0)
{
fprintf (stderr, "?Unexpected end of file\n");
exit (1);
}
buf += n;
len -= n;
}
}
/* get response from "rmt" server */
static int response (tape_handle mtape)
{
char c, rc;
int n;
doread (mtape->tapefd, &rc, 1); /* get success/error code */
if (rc != 'A' && rc != 'E')
{ /* must be Acknowledge or Error */
fprintf (stderr, "?Invalid rmt response code: %c\n",rc);
exit (1);
}
/* get numeric value (returned by both A and E responses) */
for (n=0;;)
{
doread (mtape->tapefd, &c, 1); /* get next digit */
if (c < '0' || c > '9')
break; /* not a digit */
n = n * 10 + (c - '0'); /* add new digit in */
/* ideally would check for overflow */
}
if (c != '\n')
{ /* first non-digit char must be <LF> */
fprintf (stderr, "?Invalid rmt response terminator: %3.3o\n",
((int) c) & 0377);
exit (1);
}
if (rc == 'A')
return (n); /* success, return value >=0 */
/* (unless overflowed) */
do
doread (mtape->tapefd, &c, 1);
while (c != '\n'); /* ignore until next LF */
errno = n; /* set error number */
return (-1);
}
/* send ioctl() command to local or remote tape drive */
static int doioctl (tape_handle mtape, struct mtop *op)
{
int len;
if (mtape->tape_type == TT_TAPE)
return (ioctl (mtape->tapefd, MTIOCTOP, op));
else
{ /* "rmt" tape server */
/* form cmd (better hope remote MT_OP values are the same) */
len = sprintf (mtape->netbuf, "I%d\n%d\n", op->mt_op, op->mt_count);
dowrite (mtape->tapefd, mtape->netbuf, len);
return (response (mtape));
}
}
/* open the tape drive (or whatever) */
/* "create" =1 to create if file, "writable" =1 to open with write access */
tape_handle opentape (char *name, int create, int writable)
{
char *p, *user, *port;
int len;
char *host = NULL;
tape_handle mtape = NULL;
mtape = (tape_handle) calloc (1, sizeof (struct mtape_t));
if (! mtape)
FAIL ("?can't allocate mtape struct\n");
mtape->bpi = BPI;
mtape->waccess = writable; /* remember if we're writing */
mtape->count = 0; /* nothing transferred yet */
/* get tape filename */
if (name == NULL)
name = getenv("TAPE"); /* get from environment */
if (name == NULL)
name = TAPE; /* or use our default */
/* just a file if no colon in filename */
if ((p = index (name, ':')) == NULL)
{
/* there's probably a better way to handle this, in case a file is really
a link to a tape drive -- handler index or something? */
if (strncmp (name, "/dev/", 5) == 0)
{
/* assume tape if starts with /dev/ */
mtape->tape_type = TT_TAPE;
mtape->tapefd = open (name, (writable ? O_RDWR : O_RDONLY), 0);
}
else
{ /* otherwise file */
mtape->tape_type = TT_IMAGE;
if (strcmp (name, "-") ==0 )
{ /* stdin/stdout */
if (writable)
mtape->tapefd=1;
else
mtape->tapefd=0;
}
else
{
if (create)
mtape->tapefd = open (name, O_CREAT | O_TRUNC |
O_WRONLY | O_BINARY, 0644);
else
{
mtape->tapefd = open (name, (writable ? O_RDWR : O_RDONLY) |
O_BINARY, 0);
mtape->seek_ok = 1;
}
}
}
if (mtape->tapefd < 0)
FAIL ("?can't open device or file\n");
}
else
{ /* "rmt" tape server on remote host */
mtape->tape_type = TT_RMT;
/* split filename around ':' */
len = p-name;
port = p+1;
/* can't necessarily modify tape[] so copy it first */
if ((host = malloc (len + 1)) == NULL)
FAIL ("?can't allocate string for hostname\n");
strncpy (host, name, len); /* copy hostname */
host [len] = 0; /* tack on null */
/* connect to "rexec" server */
if ((p = index (host, '@')) == NULL)
{
p = host; /* no @, point at hostname */
user = NULL;
}
else
{
*p++ = '\0'; /* shoot out @, point at host name */
user = (*p != '\0') ? host : NULL; /* keep non-null user */
}
if ((mtape->tapefd = rexec (&p, htons (512), user, NULL, "/etc/rmt",
(int *) NULL)) < 0)
FAIL ("?Connection failed\n");
/* build rmt "open device" command */
if ((1 + strlen (port) + 1 + 1 + 1 + 1) > sizeof (mtape->netbuf))
FAIL ("?Device name too long\n");
len = sprintf (mtape->netbuf, "O%s\n%d\n", port, writable ? O_RDWR : O_RDONLY);
dowrite (mtape->tapefd, mtape->netbuf, len);
if (response (mtape) < 0)
FAIL ("?Error opening tape drive");
}
/* SCSI setup for local/remote tape drive */
if ((mtape->tape_type == TT_TAPE) ||
(mtape->tape_type == TT_RMT))
{
/* (ignore errors in case not SCSI) */
/* set variable record length mode */
doioctl (mtape, & mt_setblk);
/* set density to 1600 */
doioctl (mtape, & mt_setden);
}
if (host)
free (host);
return (mtape);
fail:
if (mtape)
{
if (host)
free (host);
free (mtape);
}
return (NULL);
}
/* close the tape drive */
void closetape (tape_handle mtape)
{
if (mtape->waccess)
{ /* opened for create/append */
tapemark (mtape); /* add one more tape mark */
/* (should have one already) */
}
if (mtape->tape_type == TT_RMT)
{
dowrite (mtape->tapefd, "C\n", 2);
if (response (mtape) < 0)
{
perror("?Error closing remote tape");
exit(1);
}
}
if (close (mtape->tapefd) < 0)
{
perror("?Error closing tape");
exit(1);
}
free (mtape);
}
/* rewind tape */
void posnbot (tape_handle mtape)
{
if (mtape->tape_type == TT_IMAGE)
{ /* image file */
if (lseek (mtape->tapefd, 0L, SEEK_SET) < 0)
{
perror("?Seek failed");
exit(1);
}
}
else
{ /* local/remote tape drive */
if (doioctl (mtape, & mt_rew) < 0)
{
perror("?Rewind failed");
exit(1);
}
}
}
/* position tape at EOT (between the two tape marks) */
void posneot (tape_handle mtape)
{
if (mtape->tape_type == TT_IMAGE)
{ /* image file */
if (lseek (mtape->tapefd, -4L, SEEK_END) < 0)
{
perror("?Seek failed");
exit(1);
}
}
else
{ /* local/remote tape drive */
doioctl (mtape, & mt_bsr); /* in case already at LEOT */
while (1)
{
/* space forward a file */
if (doioctl (mtape, & mt_fsf) < 0)
{
perror("?Error spacing to EOT");
exit(1);
}
/* space one record more to see if double EOF */
if (doioctl (mtape, & mt_fsr) < 0)
break;
/* might want to check errno to make sure it's the right error */
}
#if 1
/* "man mtio" doesn't say whether MTFSR actually moves past */
/* the tape mark, let's assume it does */
if (doioctl (mtape, & mt_bsr) < 0)
{ /* get between them */
perror("?Error backspacing at EOT");
exit(1);
}
#endif
}
}
/* read a tape record, return actual length (0=tape mark) */
int getrec (tape_handle mtape, char *buf, int len)
{
unsigned char byte [4]; /* 32 bits for length field(s) */
unsigned long l; /* at least 32 bits */
if (mtape->tape_type == TT_IMAGE)
{ /* image file */
doread (mtape->tapefd, byte, 4); /* get record length */
l=((unsigned long)byte[3]<<24L)|((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8L)|(unsigned long)byte[0];
/* compose into longword */
if (l > len)
goto toolong; /* don't read if too long for buf */
if (l != 0)
{ /* get data unless tape mark */
doread (mtape->tapefd, buf, l); /* read data */
doread (mtape->tapefd, byte, 4); /* get trailing record length */
if((((unsigned long)byte[3]<<24L)|
((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8)|
(unsigned long)byte[0])!=l)
{ /* should match */
fprintf (stderr,"?Corrupt tape image\n");
exit(1);
}
}
}
else if (mtape->tape_type == TT_RMT)
{ /* rmt tape server */
len = sprintf (mtape->netbuf, "R%d\n", len);
dowrite (mtape->tapefd, mtape->netbuf, len);
if ((l = response (mtape)) < 0)
{
perror("?Error reading tape");
exit(1);
}
if (l)
doread (mtape->tapefd, buf, l);
}
else
{ /* local tape drive */
if ((l = read (mtape->tapefd, buf, len)) < 0)
{
perror("?Error reading tape");
exit(1);
}
}
return(l);
toolong:
fprintf(stderr,"?%ld byte tape record too long for %d byte buffer\n",
l,len);
exit(1);
}
/* write a tape record */
void putrec (tape_handle mtape, char *buf, int len)
{
unsigned char l [4];
if (mtape->tape_type == TT_IMAGE)
{ /* image file */
l [0] = len & 0377; /* PDP-11 byte order */
l [1] = (len >> 8) &0377;
l [2] = 0; /* our recs are always < 64 KB */
l [3] = 0;
dowrite (mtape->tapefd, l, 4); /* write longword length */
dowrite (mtape->tapefd, buf, len); /* write data */
dowrite (mtape->tapefd, l, 4); /* write length again */
}
else if (mtape->tape_type == TT_RMT)
{ /* rmt tape */
int n;
n = sprintf (mtape->netbuf, "W%d\n", len);
dowrite (mtape->tapefd, mtape->netbuf, n);
dowrite (mtape->tapefd, buf, len);
}
else
dowrite (mtape->tapefd, buf, len); /* just write the data if tape */
mtape->count += len + (mtape->bpi * 3 /5); /* add to byte count
(+0.6" tape gap) */
}
/* write a tape mark */
void tapemark (tape_handle mtape)
{
static char zero [4] = { 0, 0, 0, 0 };
if (mtape->tape_type == TT_IMAGE)
{ /* image file */
dowrite (mtape->tapefd, zero, 4); /* write longword length */
}
else
{ /* local/remote tape drive */
if (doioctl (mtape, & mt_weof) < 0)
{
perror ("?Failed writing tape mark");
exit (1);
}
}
mtape->count += 3 * mtape->bpi; /* 3" of tape */
}
/* skip records (negative for reverse) */
void skiprec (tape_handle mtape, int count)
{
unsigned char byte [4]; /* 32 bits for length field(s) */
unsigned long l; /* at least 32 bits */
if (mtape->tape_type != TT_IMAGE)
{
fprintf (stderr, "?Record skip only implemented for image files");
exit (1);
}
if (count < 0)
{
fprintf (stderr, "?Record skip reverse not yet implemented");
exit (1);
}
while (count--)
{
doread (mtape->tapefd, byte, 4); /* get record length */
/* compose into longword */
l=((unsigned long)byte[3]<<24L)|((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8L)|(unsigned long)byte[0];
if (l == 0) /* hit tape mark? */
return; /* note that we've effectively skipped over the tape mark */
/* skip record */
if (lseek (mtape->tapefd, l, SEEK_CUR) < 0)
{
perror ("?Seek failed");
exit (1);
}
doread (mtape->tapefd, byte, 4); /* get trailing record length */
if((((unsigned long)byte[3]<<24L)|
((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8)|
(unsigned long)byte[0])!=l)
{ /* should match */
fprintf (stderr,"?Corrupt tape image\n");
exit(1);
}
}
}
/* skip forward to the next file mark, and leave the tape positioned
after the mark */
static void skip_to_mark (tape_handle mtape)
{
unsigned char byte [4]; /* 32 bits for length field(s) */
unsigned long l; /* at least 32 bits */
static char scratch_buf [4096];
if (mtape->tape_type != TT_IMAGE)
{
fprintf (stderr, "?Record skip only implemented for image files");
exit (1);
}
for (;;)
{
doread (mtape->tapefd, byte, 4); /* get record length */
/* compose into longword */
l=((unsigned long)byte[3]<<24L)|((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8L)|(unsigned long)byte[0];
if (l == 0) /* hit tape mark? */
return; /* note that we've effectively skipped over the tape mark */
/* skip record */
if (mtape->seek_ok)
{
if (lseek (mtape->tapefd, l, SEEK_CUR) < 0)
{
perror ("?Seek failed");
exit (1);
}
}
else
{
int len, len2;
len = l;
while (len > 0)
{
len2 = len;
if (len2 > sizeof (scratch_buf))
len2 = sizeof (scratch_buf);
doread (mtape->tapefd, scratch_buf, len2); /* read data */
len -= len2;
}
}
doread (mtape->tapefd, byte, 4); /* get trailing record length */
if((((unsigned long)byte[3]<<24L)|
((unsigned long)byte[2]<<16L)|
((unsigned long)byte[1]<<8)|
(unsigned long)byte[0])!=l)
{ /* should match */
fprintf (stderr,"?Corrupt tape image\n");
exit(1);
}
}
}
/* skip files (negative for reverse) */
void skipfile (tape_handle mtape, int count)
{
if (mtape->tape_type != TT_IMAGE)
{
fprintf (stderr, "?File skip only implemented for image files");
exit (1);
}
if (count < 0)
{
fprintf (stderr, "?File skip reverse not yet implemented");
exit (1);
}
while (count--)
{
skip_to_mark (mtape);
}
}

53
tapeio.h Normal file
View File

@ -0,0 +1,53 @@
/*
Routines to do magtape I/O to local tapes, remote tapes, and tape image
files.
Copyright 1998, 1999 John Wilson and Eric Smith
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation. Note that permission is not granted
to redistribute this program under the terms of any other version of the
General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
typedef struct mtape_t *tape_handle; /* opaque type */
/* open a tape drive */
tape_handle opentape (char *name, int create, int writable);
/* close a tape drive */
void closetape (tape_handle h);
/* rewind tape */
void posnbot (tape_handle h);
/* position tape at EOT (between the two tape marks) */
void posneot (tape_handle h);
/* read a tape record, return actual length (0=tape mark) */
int getrec (tape_handle h, char *buf, int len);
/* write a tape record */
void putrec (tape_handle h, char *buf, int len);
/* write a tape mark */
void tapemark (tape_handle h);
/* skip records (negative for reverse) */
void skiprec (tape_handle h, int count);
/* skip files (negative for reverse) */
void skipfile (tape_handle h, int count);