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New tape manipulation tools

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rawtap	Allows extract, create and append operations on .tap files.

cpytap	Copies a .tap file to a new .tap file while allowing file level edits; skip file, replace file,
		append files and insert files. Any files copied from the original source .tap will have
		their internal record structure maintained.

cosy		COSY is the compressed format used by the CDC1700. This program allows for
		extraction of all files from an archive and the creation of a new archive. It assumes
		that you would have used raw tap about to have extracted the COSY file from a
		tape.

dbtap	Utility to read, write and list .tap containers written in the DOS/BATCH-11 format. It
		understands ascii and binary modes and can be used to transfer files in and out of
		most PDP-11 operating systems (not sure about RSTS/E), early VMS and early
		TOPS-10 systems.
This commit is contained in:
John Forecast
2017-03-14 13:44:02 -07:00
committed by Mark Pizzolato
parent 94d94fe695
commit b08ebe8eb0
29 changed files with 4978 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
converters/Makefile
View File

@@ -9,6 +9,7 @@ CC=gcc
all:
cd asc && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd cosy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd dtos8cvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd hpconvert && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd littcvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
@@ -52,6 +53,7 @@ clean:
install:
cd asc && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd cosy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd dtos8cvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd hpconvert && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd littcvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
@@ -73,6 +75,7 @@ install:
uninstall:
cd asc && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd cosy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd dtos8cvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd hpconvert && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd littcvt && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall

21
converters/cosy/Makefile Normal file
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@@ -0,0 +1,21 @@
# all of these can be over-ridden on the "make" command line if don't suit
# your environment
TOOL=cosy
CFLAGS=-O2 -Wall -Wshadow -Wextra -pedantic -Woverflow -Wstrict-overflow
BIN=/usr/local/bin
INSTALL=install
CC=gcc
$(TOOL): $(TOOL).c
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -o $(TOOL) $(TOOL).c $(LDLIBS)
.PHONY: clean install uninstall
clean:
rm -f $(TOOL)
install: $(TOOL)
$(INSTALL) -p -m u=rx,g=rx,o=rx $(TOOL) $(BIN)
uninstall:
rm -f $(BIN)/$(TOOL)

587
converters/cosy/cosy.c Normal file
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@@ -0,0 +1,587 @@
/* cosy.c: compress/decompress CDC1700 COSY format files
Copyright (c) 2015-2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
/*
* The CDC1700 COSY format is well documented with respect to the compression
* algorithm (Run length encoding of 3 - 62 consecutive blanks) but less so
* for the higher level COSY constructs. This program is written to handle
* COSY format files found on bitsavers.org. It operates in one of 2 modes:
*
* 1. Decompress a sequence of one or more COSY compressed decks. Each deck
* will start with a CSY/ card and end with a END/ card. If the input
* consists of a single compressed deck, the CSY/ and END/ cards may be
* omitted. If a deck name (e.g. "xxx") is provided on the CSY/ card,
* the output file will be named "deck_xxx", if an empty deck name is
* provided or the CSY/ card is missing, the output file will be named
* "nnnnn.deck" where nnnnn is the number of the deck within the input
* file. The CSY/ and END/ cards will not be passed through to the
* output file.
*
* 2. Compress a series of input decks, generating a single compressed COSY
* file. A CSY/ card will be prepended to each input file and a END/
* card will be appended. If the input file name is "deck_yyy" the deck
* name on the CSY/ card will be yyy. Any other input file name will leave
* the deck name empty on the CSY/ card. The output file will be padded
* to a multiple of 192 words (384 bytes).
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#define PREFIX 0x5F
/*
* Record lengths.
*/
#define RECLEN 384
#define CARDLEN 80
char card[CARDLEN + 1], pad[RECLEN];
int idx = 0, outcount = 0;
int compress = 0;
#define VALID(c) ((c >= 0x20) && (c <= 0x5E) && (c != 0x26))
/*
* Pre-defined strings to start and end a COSY deck.
*/
char *csy = " CSY/";
char *end = " END/";
/*
* Compression table
*/
#define MAXSPACES 62
char *compr[MAXSPACES+1] = {
NULL, " ", " ",
"\x5F\x21", "\x5F\x22", "\x5F\x23", "\x5F\x24", "\x5F\x25",
"\x5F\x27", "\x5F\x28", "\x5F\x29", "\x5F\x2A",
"\x5F\x2B", "\x5F\x2C", "\x5F\x2D", "\x5F\x2E",
"\x5F\x2F", "\x5F\x30", "\x5F\x31", "\x5F\x32",
"\x5F\x33", "\x5F\x34", "\x5F\x35", "\x5F\x36",
"\x5F\x37", "\x5F\x38", "\x5F\x39", "\x5F\x3A",
"\x5F\x3B", "\x5F\x3C", "\x5F\x3D", "\x5F\x3E",
"\x5F\x3F", "\x5F\x40", "\x5F\x41", "\x5F\x42",
"\x5F\x43", "\x5F\x44", "\x5F\x45", "\x5F\x46",
"\x5F\x47", "\x5F\x48", "\x5F\x49", "\x5F\x4A",
"\x5F\x4B", "\x5F\x4C", "\x5F\x4D", "\x5F\x4E",
"\x5F\x4F", "\x5F\x50", "\x5F\x51", "\x5F\x52",
"\x5F\x53", "\x5F\x54", "\x5F\x55", "\x5F\x56",
"\x5F\x57", "\x5F\x58", "\x5F\x59", "\x5F\x5A",
"\x5F\x5B", "\x5F\x5C", "\x5F\x5D"
};
int doCompress(FILE *, int, char **), doDecompress(FILE *);
/*++
* compressCard
*
* Write the current card, in COSY compressed format, to the destination
* COSY file.
*
* Inputs:
*
* dest - Destination COSY file
*
* Outputs:
*
* ...
*
* Returns:
*
* Exit status:
* 0 - Success
* 3 - File write error
* 4 - Invalid input character
*
--*/
int compressCard(
FILE *dest
)
{
int i, spcount = 0, len = strlen(card);
for (i = 0; i < len; i++) {
if (!VALID(card[i]))
return 4;
if (card[i] != ' ') {
if (spcount != 0) {
size_t l = strlen(compr[spcount]);
if (fwrite(compr[spcount], sizeof(char), l, dest) != l)
return 3;
outcount += l;
spcount = 0;
}
if (fputc(card[i], dest) == EOF)
return 3;
outcount++;
} else {
if (++spcount == MAXSPACES) {
size_t l = strlen(compr[spcount]);
if (fwrite(compr[spcount], sizeof(char), l, dest) != l)
return 3;
outcount += l;
spcount = 0;
}
}
}
/*
* Terminate the card image.
*/
fwrite("\x5F\x5E", sizeof(char), 2, dest);
outcount += 2;
return 0;
}
/*++
* decompressCard
*
* Read the next card image from a source file while performing COSY
* decompression. The card image will be null terminated.
*
* Inputs:
*
* src - Source COSY file
*
* Outputs:
*
* ...
*
* Returns:
*
* 0 - Card image successfully read
* -1 - EOF read
* -2 - End of deck read
*
--*/
int decompressCard(
FILE *src
)
{
int ch, i, spcount;
idx = 0;
while (((ch = fgetc(src)) != -1) && (ch != 0)) {
if (ch == PREFIX) {
if ((ch = fgetc(src)) == -1)
break;
switch (ch) {
case 0x21: case 0x22: case 0x23: case 0x24: case 0x25:
spcount = ch - 0x21 + 3;
goto fill;
case 0x27: case 0x28: case 0x29: case 0x2A: case 0x2B:
case 0x2C: case 0x2D: case 0x2E: case 0x2F: case 0x30:
case 0x31: case 0x32: case 0x33: case 0x34: case 0x35:
case 0x36: case 0x37: case 0x38: case 0x39: case 0x3A:
case 0x3B: case 0x3C: case 0x3D: case 0x3E: case 0x3F:
case 0x40: case 0x41: case 0x42: case 0x43: case 0x44:
case 0x45: case 0x46: case 0x47: case 0x48: case 0x49:
case 0x4A: case 0x4B: case 0x4C: case 0x4D: case 0x4E:
case 0x4F: case 0x50: case 0x51: case 0x52: case 0x53:
case 0x54: case 0x55: case 0x56: case 0x57: case 0x58:
case 0x59: case 0x5A: case 0x5B: case 0x5C: case 0x5D:
spcount = ch - 0x27 + 8;
fill:
for (i = 0; i< spcount; i++) {
if (idx != CARDLEN)
card[idx++] = ' ';
}
break;
case 0x5E:
card[idx] = '\0';
return 0;
case 0x5F:
card[idx] = '\0';
return -2;
}
} else {
if (idx != CARDLEN)
card[idx++] = ch;
}
}
card[idx] = '\0';
return -1;
}
/*++
* writeCard
*
* Remove trailing spaces from the card image and write the resulting line
* to the destination file with a terminating newline character.
*
* Inputs:
*
* dest - Destination file
*
* Outputs:
*
* ...
*
* Returns:
*
* 0 - write was successful
* -1 - error on write
*
--*/
int writeCard(
FILE *dest
)
{
/*
* Remove trailing spaces.
*/
while (idx && (card[idx - 1] == ' '))
card[--idx] = '\0';
if (fprintf(dest, "%s\n", card) < 0)
return -1;
return 0;
}
/*++
* usage
*
* Display a usage message on stderr and exit.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* Never returns
*
--*/
void usage(void)
{
fprintf(stderr,
"Usage: cosy [-cd] <cosyfile> [file ...]\n");
fprintf(stderr,
" Compress/decompress a COSY file\n");
fprintf(stderr, "\nSwitches:\n\n");
fprintf(stderr, " -c Perform COSY compression\n");
fprintf(stderr, " -d Perform COSY decompression (the default)\n");
exit(1);
}
/*++
* main
*
* Entry point for cosy program.
*
* Inputs:
*
* argc - # of supplied arguments
* argv - Array of argument strings
*
* Outputs:
*
* None
*
* Returns:
*
* Exit status
*
--*/
int main(
int argc,
char *argv[]
)
{
int ch;
FILE *cosy;
while ((ch = getopt(argc, argv, "cd")) != -1) {
switch (ch) {
case 'c':
compress = 1;
break;
case 'd':
compress = 0;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc < (compress ? 2 : 1))
usage();
/*
* Open the COSY file.
*/
if ((cosy = fopen(argv[0], compress ? "w" : "r")) == NULL) {
fprintf(stderr, "Failed to open COSY file - %s\n", argv[0]);
return 2;
}
argc--, argv++;
if (compress) {
return doCompress(cosy, argc, argv);
}
return doDecompress(cosy);
}
/*++
* doCompress
*
* Compress a sequence of 1 or more files into a single COSY file.
*
* Inputs:
*
* dest - Destination cosy file
* argc - # of source files to compress
* argv - Pointer to array of file names
*
* Outputs:
*
* ...
*
* Returns:
*
* Exit status:
* 0 - Success
* 2 - File open error
* 3 - File write error
* 4 - Invalid input character
*
--*/
int doCompress(
FILE *dest,
int argc,
char *argv[]
)
{
int status = 0;
unsigned int i;
char *filename;
FILE *src;
while (argc != 0) {
filename = argv[0];
if ((src = fopen(filename, "r")) == NULL) {
status = 2;
break;
}
/*
* Build a leading CSY/ card.
*/
strcpy(card, csy);
if (strncmp(filename, "deck_", 5) == 0) {
/*
* Possible deck name derived from filename.
*/
if (strlen(filename) <= 11) {
for (i = 5; i < strlen(filename); i++)
if (!VALID(filename[i]))
goto noname;
strncpy(card, &filename[5], strlen(filename) - 5);
goto named;
}
noname:
fprintf(stderr, "Unable to use filename (%s) for deck name\n", filename);
}
named:
if ((status = compressCard(dest)) != 0)
break;
/*
* Copy the source file to the destination while compressing.
*/
while (fgets(card, sizeof(card), src) != NULL) {
int len = strlen(card);
if (card[len - 1] == '\n')
card[len - 1] = '\0';
if ((status = compressCard(dest)) != 0)
goto error;
}
/*
* Build a trailing END/ card.
*/
strcpy(card, end);
if ((status = compressCard(dest)) != 0)
break;
fclose(src);
argc--, argv++;
}
error:
/*
* Report possible error.
*/
switch (status) {
case 0:
if ((outcount % RECLEN) != 0)
fwrite(pad, sizeof(char), outcount % RECLEN, dest);
break;
case 2:
fprintf(stderr, "Failed to open file - %s\n", filename);
break;
case 3:
fprintf(stderr, "Error writing COSY file\n");
break;
case 4:
fprintf(stderr, "Invalid character in file - %s\n", filename);
break;
default:
fprintf(stderr, "Unknown exit status - %u\n", status);
break;
}
fclose(dest);
return status;
}
/*++
* doDecompress
*
* Decompress a COSY file.
*
* Inputs:
*
* src - Source COSY file
*
* Outputs:
*
* ...
*
* Returns:
*
* Exit status:
* 0 - Success
* 2 - File open error
* 3 - File write error
*
--*/
int doDecompress(
FILE *src
)
{
int seqno = 0, valid;
char filename[32], *eofn;
FILE *dest = NULL;
while (decompressCard(src) == 0) {
/*
* First card of next deck has been read - is is a CSY/ card?
*/
sprintf(filename, "%05u.deck", seqno);
valid = 1;
if (strncmp("CSY/", &card[7], 4) == 0) {
if (card[0] != ' ') {
if ((eofn = strchr(card, ' ')) != NULL) {
int len = eofn - card;
if (len <= 6) {
*eofn = '\0';
sprintf(filename, "deck_%s", card);
}
}
}
valid = 0;
}
if ((dest = fopen(filename, "w")) == 0) {
fprintf(stderr, "Failed to create file - %s\n", filename);
return 2;
}
/*
* If the first line was not a CSY/ card, write to the destination file
*/
if (valid) {
if (writeCard(dest) == -1) {
fprintf(stderr, "Error writing to file - %s\n", filename);
fclose(dest);
return 3;
}
}
/*
* Now process the rest of this file.
*/
while (dest != NULL) {
switch (decompressCard(src)) {
case 0:
if (strncmp("END/", &card[7], 4) == 0) {
fclose(dest);
dest = NULL;
break;
}
if (writeCard(dest) == -1) {
fprintf(stderr, "Error writing to file%s\n", filename);
fclose(dest);
return 3;
}
break;
case -1:
fclose(dest);
return 0;
case -2:
fclose(dest);
dest = NULL;
break;
}
}
seqno++;
}
return 0;
}

24
converters/cosy/cosy.txt Normal file
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@@ -0,0 +1,24 @@
cosy manipulates files in the CDC1700 COSY format (note this is different from
the CDC3000 series COSY format). COSY is a format used for containing card
images as ASCII files using run length encoding of 3 or more spaces to reduce
the amount of space required. Multiple card decks may be present in a single
COSY file. File naming in the host environment makes use of the deck name
which is optionally present in the CSY/ cards. For decompression, if a deck
name is present, the host file will be named "deck_<deckname>" otherwise it
will be named "nnnnn.deck" where nnnnn is the position number of the deck
within the COSY file. On compression, source files named "deck_<deckname>"
will result in the CSY/ deckname being filled in otherwise an empty name wil
be used.
To compress a COSY format file:
cosy -c <cosyFile> file ...
To decompress a COSY format file:
cosy -d <cosyFile>
When decompressing a COSY format file, CSY/ and END/ card images are removed
from the output. On compression, a CSY/ card image is inserted at the start
of the output and a END/ card is appended to the output. The resulting
compressed file will be padded, with NULLs, to be a multiple of 384 bytes.

BIN
converters/mksimtape/mksimtape Normal file
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Binary file not shown.

12
extracters/Makefile
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@@ -10,36 +10,48 @@ CC=gcc
# Omitted: backup, ods2: need more complicated Makefiles.
all:
cd ckabstape && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd cpytap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd dbtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd mmdir && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd mtdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd rawcopy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd rawtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd rstsflx && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd sdsdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
cd tpdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)"
clean:
cd ckabstape && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd cpytap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd dbtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd mmdir && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd mtdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd rawcopy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd rawtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd rstsflx && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd sdsdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
cd tpdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" clean
install:
cd ckabstape && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd cpytap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd dbtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd mmdir && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd mtdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd rawcopy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd rawtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd rstsflx && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd sdsdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
cd tpdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" install
uninstall:
cd ckabstape && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd cpytap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd dbtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd mmdir && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd mtdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd rawcopy && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd rawtap && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd rstsflx && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd sdsdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall
cd tpdump && $(MAKE) CFLAGS="$(CFLAGS)" BIN="$(BIN)" INSTALL="$(INSTALL)" CC="$(CC)" uninstall

21
extracters/cpytap/Makefile Normal file
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@@ -0,0 +1,21 @@
# all of these can be over-ridden on the "make" command line if don't suit
# your environment
TOOL=cpytap
CFLAGS=-O2 -Wall -Wshadow -Wextra -pedantic -Woverflow -Wstrict-overflow
BIN=/usr/local/bin
INSTALL=install
CC=gcc
$(TOOL): $(TOOL).c tapeio.c tapeio.h tap.h defs.h
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -o $(TOOL) $(TOOL).c tapeio.c $(LDLIBS)
.PHONY: clean install uninstall
clean:
rm -f $(TOOL)
install: $(TOOL)
$(INSTALL) -p -m u=rx,g=rx,o=rx $(TOOL) $(BIN)
uninstall:
rm -f $(BIN)/$(TOOL)

441
extracters/cpytap/cpytap.c Normal file
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@@ -0,0 +1,441 @@
/* cpytap.c: copy SIMH .tap container with file changes
Copyright (c) 2015-2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "tapeio.h"
#define MINRECLEN 1
#define MAXRECLEN 65536
#define DEFRECLEN 10240
int reclen = DEFRECLEN;
/*
* We maintain an array of requests indexed by the file # on the source tape.
*/
#define MAXFILES 100 /* Max files on tape */
#define APPFILES 20 /* Max append files */
struct info {
int reclen; /* Record length to be used */
char *filename; /* Filename */
};
struct fileop {
int used; /* Use count */
int skipfile; /* Skip this file */
struct info repfile; /* Replace with this file */
struct info insfiles[APPFILES]; /* Insert these files (in order) */
} fileops[MAXFILES + 1];
struct fileop appendops;
char *srcfile = NULL, *dstfile = NULL;
FILE *src = NULL, *dst = NULL;
/*++
* usage
*
* Display a usage message on stderr and exit.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* Never returns
*
--*/
void usage(void)
{
fprintf(stderr,
"Usage: cpytap src dst [-r len] [-S n] [-I n,file] [-R n,file] [-A file]\n");
fprintf(stderr,
" Copy src .tap file to destination maintaining the internal\n"
" record structure. The switches control file level changes to\n"
" destination tape.\n");
fprintf(stderr, "\nSwitches:\n\n");
fprintf(stderr,
"-r len - Specify max record size when writing new files.\n"
" There may be multiple \"-r\" switches on the\n"
" command line if the new files need different\n"
" record sizes. (%u <= len <= %u, default %u)\n"
" If len is outside the supported range, it will be\n"
" quietly modified to the minimum or maximum value.\n",
MINRECLEN, MAXRECLEN, DEFRECLEN);
fprintf(stderr,
"-I n,file - Insert specified file before file n of the source tape.\n");
fprintf(stderr,
"-R n,file - Replace file n of the source tape with the specified file.\n");
fprintf(stderr,
"-S n - Skip file n from the source tape.\n");
fprintf(stderr,
"-A file - Append the specified file after all the files on\n"
" the source tape have been copied to the destination.\n");
fprintf(stderr,
"\nFiles are number 1 - N according to their position on the\n"
"source tape.\n");
exit(1);
}
/*++
* copyFile
*
* Copy the next file from the source tape to the destination tape
* replicating the record structure up to and including the tape mark.
*
* Inputs:
*
* None
*
* Outputs:
*
* ...
*
* Returns:
*
* ST_EOM - End of medium detected
* ST_TM - Tape mark detected
*
--*/
static unsigned int copyFile(void)
{
char record[MAXRCLNT];
uint32 len;
for (;;) {
switch (len = ReadTapeRecord(src, record, sizeof(record))) {
case ST_EOM:
return ST_EOM;
case ST_TM:
if (WriteTapeMark(dst, 0) == 0)
return ST_TM;
fprintf(stderr, "Error writing tape mark to destination tape\n");
exit(6);
default:
if (WriteTapeRecord(dst, record, len) == 0)
continue;
fprintf(stderr, "Error writing record to destination tape\n");
exit(6);
}
}
}
/*++
* writeFile
*
* Write a file at the current position on the destination tape.
*
* Inputs:
*
* filename - Pointer to name of file to be written
* rlen - Max record size to use
*
* Outputs:
*
* ...
*
* Returns:
*
* None
*
--*/
static void writeFile(
char *filename,
int rlen
)
{
FILE *file;
size_t datalen;
char record[MAXRCLNT];
if ((file = fopen(filename, "r")) != NULL) {
while ((datalen = fread(record, sizeof(char), rlen, file)) != 0) {
if (ferror(file)) {
fprintf(stderr, "Error reading %s\n", filename);
exit(4);
}
if (WriteTapeRecord(dst, record, rlen) != 0) {
fprintf(stderr, "Error writing record to destination tape\n");
exit(5);
}
}
if (WriteTapeMark(dst, 0) != 0) {
fprintf(stderr, "Error writing tape mark to destination tape\n");
exit(5);
}
fclose(file);
return;
}
fprintf(stderr, "Failed to open file - %s\n", filename);
exit(3);
}
/*++
* parse
*
* Parse a command line switch argument of the form "n,filename" where n
* is an integerin the range 1 - MAXFILES.
*
* Inputs:
*
* arg - Pointer to "n,filename" string
* file - Pointer to int to receive "n"
* name - Pointer to char* to receive filename
*
* Outputs:
*
* ...
*
* Returns:
*
* 0 - Success
* -1 - Invalid argument format
*
--*/
int parse(
char *arg,
int *file,
char **name
)
{
char *endptr;
*file = strtoul(arg, &endptr, 0);
if ((*endptr == ',') && (*++endptr == '\0'))
return -1;
if ((*file == 0) || (*file > MAXFILES))
return -1;
*name = endptr;
return 0;
}
/*++
* main
*
* Entry point for cpytap program.
*
* Inputs:
*
* argc - # of supplied arguments
* argv - Array of argument strings
*
* Outputs:
*
* None
*
* Returns:
*
* Exit status for cpytap
*
--*/
int main(
int argc,
char *argv[]
)
{
int ch, i, filenumber = 1, filenum;
char *filename;
if (argc < 3)
usage();
srcfile = argv[1];
dstfile = argv[2];
argc -= 2;
argv += 2;
memset(fileops, 0, sizeof(fileops));
memset(&appendops, 0, sizeof(appendops));
while ((ch = getopt(argc, argv, "r:A:I:R:S:")) != -1) {
switch (ch) {
case 'r':
reclen = strtoul(optarg, NULL, 0);
if (reclen < MINRECLEN)
reclen = MINRECLEN;
if (reclen > MAXRECLEN)
reclen = MAXRECLEN;
done:
break;
case 'A':
for (i = 0; i < APPFILES; i++) {
if (appendops.insfiles[i].filename == NULL) {
appendops.insfiles[i].reclen = reclen;
appendops.insfiles[i].filename = argv[optind];
goto done;
}
}
fprintf(stderr, "No space for appending file - %s\n", argv[optind]);
return 5;
case 'I':
if (parse(optarg, &filenum, &filename) != 0) {
fprintf(stderr, "Invalid argument - -I %s\n", optarg);
return 7;
}
for (i = 0; i < APPFILES; i++) {
if (fileops[filenum].insfiles[i].filename == NULL) {
fileops[filenum].insfiles[i].reclen = reclen;
fileops[filenum].insfiles[i].filename = filename;
goto done;
}
}
fprintf(stderr, "No space for inserting file - %s\n", filename);
return 5;
case 'R':
if (parse(optarg, &filenum, &filename) != 0) {
fprintf(stderr, "Invalid argument - -R %s\n", optarg);
return 7;
}
if (fileops[filenum].repfile.filename != NULL) {
fprintf(stderr, "File %u is already being replaced.\n", filenum);
return 8;
}
fileops[filenum].repfile.reclen = reclen;
fileops[filenum].repfile.filename = filename;
break;
case 'S':
filenum = strtoul(optarg, NULL, 0);
if ((filenum == 0) || (filenum > MAXFILES)) {
fprintf(stderr, "Invalid file number - -D %u\n", filenum);
return 6;
}
fileops[filenum].skipfile = 1;
break;
case '?':
default:
usage();
}
}
/*
* Begin processing the source tape.
*/
switch (OpenTapeForRead(&src, srcfile)) {
case TIO_SUCCESS:
break;
case TIO_ERROR:
fprintf(stderr, "%s has errors and may not copy correctly\n", srcfile);
break;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", srcfile);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", srcfile);
exit(3);
}
/*
* Begin processing the destination tape.
*/
switch (OpenTapeForWrite(&dst, dstfile)) {
case TIO_SUCCESS:
break;
case TIO_IOERROR:
fprintf(stderr, "Error writing to destination tape - %s\n", dstfile);
exit(5);
case TIO_CREATEFAIL:
fprintf(stderr, "Failed to create destination tape - %s\n", dstfile);
exit(3);
}
/*
* Process the files on the tape.
*/
for (;;) {
if (filenumber <= MAXFILES) {
struct fileop *op = &fileops[filenumber];
/*
* Process possible repalcement.
*/
if (op->repfile.filename != NULL)
writeFile(op->repfile.filename, op->repfile.reclen);
/*
* Process any insertions before the current file.
*/
for (i = 0; i < APPFILES; i++)
if (op->insfiles[i].filename != NULL)
writeFile(op->insfiles[i].filename, op->insfiles[i].reclen);
/*
* Now either copy or skip over the next file on the source tape.
*/
if ((op->skipfile != 0) || (op->repfile.filename != 0)) {
if (SkipToNextTapeMark(src) == ST_EOM)
break;
} else {
if (copyFile() == ST_EOM)
break;
}
filenumber++;
} else {
/*
* If there are more than MAXFILES files on the source tape, just copy
* the remaining files.
*/
if (copyFile() == ST_EOM)
break;
}
}
/*
* Handle any appends
*/
for (i = 0; i < APPFILES; i++)
if (appendops.insfiles[i].filename != NULL)
writeFile(appendops.insfiles[i].filename, appendops.insfiles[i].reclen);
WriteTapeMark(dst, 0);
CloseTape(src);
CloseTape(dst);
return 0;
}

42
extracters/cpytap/cpytap.txt Normal file
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@@ -0,0 +1,42 @@
cpytap manipulates a .tap magtape container file used by SIMH. It copies an
existing .tap file to a newly created .tap while modifying its file level
contents. While performing the copy, individual files may be skipped or
replaced and new files may be inserted at specified positions or appended
after the last source file has been copied. For files which are copied between
the source and destination tapes, the internal record structure of each file
is maintained. Replacement or inserted/appended files may only be written
with a specified maximum record size.
cpytap is invoked by:
cpytap src dst [-r len] [-I n,file] [-R n,file] [-S n] [-A file]
Where:
-r len Max record size to be used when writing new files to the
destination tape. (1 <= len <= 65536, default 10240).
There may be multiple "-r" switches on the command line.
When a "-r" switch is specified, it takes effect on all
following editing commands.
-I n,file Insert the specified file before file n of the source tape
-R n,file Replace file n of the source tape with the specified file
-S n Skip file n of the source tape
-A file Append the specified fie after all the files on the source
tape have been copied to the destination tape.
Files on the source tape are numbered 1 - n.
When multiple -I commands reference the same source tape file or there are
multiple -A commands, the files will be written to the destination tape in
the order specified on the command line. If a -R command and a -I command
reference the same source tape file, the -R file will be written first
followed by the -I file(s).
The editing control tables are pre-built into the executable. Edit commands
may be issued for files 1 - 100, subsequent files will just be copied from
source to destination. There may be up to 20 -I commands for each source tape
file and up to 20 -A commands.

40
extracters/cpytap/defs.h Normal file
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@@ -0,0 +1,40 @@
/* defs.h: Common definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#ifndef __DEFS_H__
#define __DEFS_H__
#if defined(VMS)
#include <ints.h>
#else
typedef signed char int8;
typedef signed short int16;
typedef signed int int32;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
#endif
#endif

50
extracters/cpytap/tap.h Normal file
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@@ -0,0 +1,50 @@
/* tap.h: simh tape representation definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
/*
* Metadata markers
*/
#define ST_EOM 0xFFFFFFFF /* end of medium */
#define ST_GAP 0xFFFFFFFE /* erase gap */
#define ST_TM 0x00000000 /* tape mark */
/*
* Record length field layout
*/
#define ST_ERROR 0x80000000 /* record contains an error */
#define ST_MBZ 0x7F000000 /* must be zero */
#define ST_LENGTH 0x00FFFFFF /* record length */
/*
* Data in the .tap containe file is rounded up to an even number of bytes
*/
#define RECLEN(c) (((c) + 1) & ~1)
/*
* The maximum record length supported by this code is 64K.
*/
#define MAXRCLNT 65536

701
extracters/cpytap/tapeio.c Normal file
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@@ -0,0 +1,701 @@
/* tapeio.c: Tape I/O routines
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include "tapeio.h"
char buffer[MAXRCLNT];
int rLength, occupied;
static int verifyFormat(FILE *);
/*++
* OpenTapeForRead
*
* Open an existing SIMH .tap format file for read access. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* handle - file handle returned here
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForRead(
FILE **handle,
char *name
)
{
FILE *tfile;
if ((tfile = fopen(name, "r")) != NULL) {
int status;
status = verifyFormat(tfile);
rewind(tfile);
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape(tfile);
else *handle = tfile;
return status;
}
return TIO_OPENFAIL;
}
/*++
* OpenTapeForWrite
*
* Create a new SIMH .tap format fiole for write access. Two tape marks are
* written to the file and the file handle is rewound to the beginning of the
* file. If the file already exists, and error (TIO_CREATEFAIL) is returned.
*
* Inputs:
*
* handle - file handle returned here
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully created
* TIO_IOERROR - I/O error writing the initial file contents
* TIO_CREATEFAIL - file create failed
*
--*/
int OpenTapeForWrite(
FILE **handle,
char *name
)
{
FILE *tfile;
/*
* Fail if the file exists
*/
if (access(name, F_OK) == 0)
return TIO_CREATEFAIL;
if ((tfile = fopen(name, "w+")) != NULL) {
uint32 tm = 0;
int status = TIO_SUCCESS;
/*
* Write 2 tape marks
*/
if (fwrite(&tm, sizeof(tm), 2, tfile) != 2)
status = TIO_IOERROR;
if (status == TIO_SUCCESS) {
rewind(tfile);
*handle = tfile;
return TIO_SUCCESS;
}
/*
* Failed to write the 2 tape marks. Try to delete the file before
* returning an error.
*/
CloseTape(tfile);
unlink(name);
return TIO_IOERROR;
}
return TIO_CREATEFAIL;
}
/*++
* OpenTapeForAppend
*
* Open an existing SIMH .tap format file for write access, leaving the
* file handle positioned just before the final tape mark. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* handle - file handle returned here
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForAppend(
FILE **handle,
char *name
)
{
FILE *tfile;
if ((tfile =fopen(name, "r+")) != NULL) {
int status;
status = verifyFormat(tfile);
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape(tfile);
else *handle = tfile;
return status;
}
return TIO_OPENFAIL;
}
/*++
* CloseTape
*
* If the tape is open, close it.
*
* Inputs:
*
* handle - file handle for the tape
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void CloseTape(
FILE *handle
)
{
if (handle != NULL)
fclose(handle);
}
/*++
* verifyFormat
*
* Verify the format of the SIMH .tap file. If the format is valid, leave
* the file handle positioned right before the last tape mark in the file.
*
* Inputs:
*
* handle - file handle for the tape
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file format is correct
* TIO_ERROR - file format is correct, error records detected
* TIO_CORRUPT - file format is invalid
* TIO_IOERROR - I/O errror while processing file
*
--*/
static int verifyFormat(
FILE *handle
)
{
int errorCount = 0, tmSeen = 0;
uint8 meta[4];
uint32 header, bc;
off_t position;
struct stat stat;
/*
* Determine the size of the file.
*/
fstat(fileno(handle), &stat);
for (;;) {
position = ftello(handle);
/*
* If we are position at the end of file, there is a tape mark missing.
* Treat it as though there is one present.
*/
if (position == stat.st_size)
return TIO_SUCCESS;
if (fread(meta, sizeof(meta), 1, handle) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_TM:
if (++tmSeen <= 1)
break;
/* Treat second TM in a row as end of medium */
/* FALLTHROUGH */
case ST_EOM:
if (fseek(handle, -sizeof(meta), SEEK_CUR) != 0)
return TIO_IOERROR;
return errorCount ? TIO_ERROR : TIO_SUCCESS;
case ST_GAP:
break;
default:
/*
* Record descriptor
*/
tmSeen = 0;
header = bc;
if ((bc & ST_ERROR) != 0)
errorCount++;
if ((bc & ST_MBZ) != 0)
return TIO_CORRUPT;
bc = RECLEN(bc & ST_LENGTH);
/*
* Check if we are seeking outside of the file. If so, this is not
* a .tap container file.
*/
if ((position + bc + (2 * sizeof(meta))) > (unsigned long long)stat.st_size)
return TIO_CORRUPT;
if (fseek(handle, bc, SEEK_CUR) != 0)
return TIO_CORRUPT;
if (fread(meta, sizeof(meta), 1, handle) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
if (header != bc)
return TIO_CORRUPT;
}
}
}
/*++
* ReadTapeRecord
*
* Read the next record from the tape into the specified buffer. If the
* buffer is smaller than the record, the entire record will be consumed.
*
* Inputs:
*
* handle - file handle for the tape
* buf - pointer to the buffer to receive the data
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecord(
FILE *handle,
void *buf,
int len
)
{
long pos = ftell(handle);
uint8 meta[4];
uint32 bc, erflag, length;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, handle) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
length = (uint32)len;
if (bc < length)
length = bc;
if (fread(buf, sizeof(uint8), length, handle) != length)
return ST_EOM;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(handle, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | length;
}
return ST_EOM;
}
/*++
* ReadTapeRecordLength
*
* Get the length of the next record on the tape without actually reading
* the data.
*
* Inputs:
*
* handle - file handle for the tape
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecordLength(
FILE *handle
)
{
long pos = ftell(handle);
uint8 meta[4];
uint32 bc, erflag;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, handle) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(handle, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | bc;
}
return ST_EOM;
}
/*++
* WriteTapeRecord
*
* Write a record to the tape at it's current position.
*
* Inputs:
*
* handle - file handle for the tape
* buf - pointer to the buffer to be written
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if record was written successfully, -1 if write failed
*
--*/
int WriteTapeRecord(
FILE *handle,
void *buf,
int len
)
{
uint8 meta[4];
int datalen;
meta[0] = len & 0xFF;
meta[1] = (len >> 8) & 0xFF;
meta[2] = (len >> 16) & 0xFF;
meta[3] = (len >> 24) & 0xFF;
datalen = ((len + 1) & ST_LENGTH) & ~1;
if (fwrite(meta, sizeof(meta), 1, handle) != 1)
return -1;
if (fwrite(buf, datalen, 1, handle) != 1)
return -1;
if (fwrite(meta, sizeof(meta), 1, handle) != 1)
return -1;
return 0;
}
/*++
* SkipToNextTapeMark
*
* Skip forward to the next tape mark and position the file just past the
* tape mark.
*
* Inputs:
*
* handle - file handle for the tape
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
*
--*/
unsigned int SkipToNextTapeMark(
FILE *handle
)
{
long pos = ftell(handle);
uint8 meta[4];
uint32 bc;
for (;;) {
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, handle) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
bc &= ST_LENGTH;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(handle, pos, SEEK_SET) != 0)
return ST_EOM;
break;
}
}
}
/*++
* WriteTapeMark
*
* Write a tape mark to the tape at it's current position and, optionally,
* backup to before the tape mark.
*
* Inputs:
*
* handle - file handle for the tape
* backup - if 1, reposition the tape to before the tape mark
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if tape mark was written successfully, -1 if write failed
*
--*/
int WriteTapeMark(
FILE *handle,
int backup
)
{
uint32 tm = 0;
if (fwrite(&tm, sizeof(tm), 1, handle) != 1)
return -1;
if (backup)
if (fseek(handle, -sizeof(tm), SEEK_CUR) != 0)
return -1;
return 0;
}
/*++
* initTapeBuffering
*
* Initialize variables for writes to tape for ASCII mode transfers
* (translates LF -> CRLF).
*
* Inputs:
*
* reclen - size of the tape record buffer to use
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void initTapeBuffering(
int reclen
)
{
rLength = reclen;
occupied = 0;
}
/*++
* flushTapeBuffering
*
* Flush any pending data out to the current tape.
*
* Inputs:
*
* handle - file handle for the tape
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if data was successfully flushed, -1 if write failed
*
--*/
int flushTapeBuffering(
FILE *handle
)
{
uint32 count = occupied;
occupied = 0;
if (count != 0)
return WriteTapeRecord(handle, buffer, count);
return 0;
}
/*++
* writeTapeBuffering
*
* Write a character to the current tape, buffering the data into records.
*
* Inputs:
*
* handle - file handle for the tape
* ch - the character to be output
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if character was successfully buffered or written to tape, -1 if
* write failed
*
--*/
int writeTapeBuffering(
FILE *handle,
char ch
)
{
buffer[occupied++] = ch;
if (occupied == rLength) {
occupied = 0;
return WriteTapeRecord(handle, buffer, rLength);
}
return 0;
}

63
extracters/cpytap/tapeio.h Normal file
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@@ -0,0 +1,63 @@
/* tapeio.h: Tape I/O definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include "tap.h"
#include "defs.h"
/*
* Tape open status return codes
*/
#define TIO_SUCCESS 0 /* operation successful */
#define TIO_ERROR -1 /* error record seen */
#define TIO_CORRUPT -2 /* tape format is corrupt */
#define TIO_OPENFAIL -3 /* open operation failed */
#define TIO_CREATEFAIL -4 /* create operation failed */
#define TIO_IOERROR -5 /* I/O error */
/*
* Tape open/close routines.
*/
extern int OpenTapeForRead(FILE **, char *);
extern int OpenTapeForWrite(FILE **, char *);
extern int OpenTapeForAppend(FILE **, char *);
extern void CloseTape(FILE *);
/*
* Tape I/O routines.
*/
uint32 ReadTapeRecord(FILE *, void *, int);
uint32 ReadTapeRecordLength(FILE *);
int WriteTapeRecord(FILE *, void *, int);
unsigned int SkipToNextTapeMark(FILE *);
int WriteTapeMark(FILE *, int);
/*
* Buffered I/O routines
*/
void initTapeBuffering(int);
int flushTapeBuffering(FILE *);
int writeTapeBuffering(FILE *, char);

21
extracters/dbtap/Makefile Normal file
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@@ -0,0 +1,21 @@
# all of these can be over-ridden on the "make" command line if don't suit
# your environment
TOOL=dbtap
CFLAGS=-O2 -Wall -Wshadow -Wextra -pedantic -Woverflow -Wstrict-overflow
BIN=/usr/local/bin
INSTALL=install
CC=gcc
$(TOOL): $(TOOL).c tapeio.c dos11.c tapeio.h dos11.h tap.h defs.h
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -o $(TOOL) $(TOOL).c tapeio.c dos11.c $(LDLIBS)
.PHONY: clean install uninstall
clean:
rm -f $(TOOL)
install: $(TOOL)
$(INSTALL) -p -m u=rx,g=rx,o=rx $(TOOL) $(BIN)
uninstall:
rm -f $(BIN)/$(TOOL)

318
extracters/dbtap/dbtap.c Normal file
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@@ -0,0 +1,318 @@
/* dbtap.c: process DOS/BATCH-11 tape files within a SIMH .tap container
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "dos11.h"
#include "tapeio.h"
char *ascii = "";
int extra = 0, strict = 0, reclen = 512;
uint8 prog = 1, proj = 1;
int list = 0, create = 0, append = 0, extract = 0;
/*++
* usage
*
* Display a usage message on stderr and exit.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void usage(void)
{
fprintf(stderr,
"Usage: dbtap -lcae [-r len -A <list> -E -S -P pg,pj] container [...]\n\n");
fprintf(stderr,
" List contents of container file(s):\n");
fprintf(stderr,
" dbtap -l container ...\n\n");
fprintf(stderr,
" Create new container and append file(s):\n");
fprintf(stderr,
" dbtap -c [-r len -A <list> -S -P pg,pj] container file ...\n\n");
fprintf(stderr,
" Append file(s) to an existing container:\n");
fprintf(stderr,
" dbtap -a [-r len -A <list> -S -P pg,pj] container file ...\n\n");
fprintf(stderr,
" Extract files from container(s):\n");
fprintf(stderr,
" dbtap -e [-A <list> -E] container ...\n\n");
fprintf(stderr, "\nSwitches:\n\n");
fprintf(stderr,
"-r len - Specifiy max tape record size (512 <= len <= 65536)\n");
fprintf(stderr,
"-A <list> - Specify filename extension for ASCII tranefer mode\n");
fprintf(stderr,
" e.g. \".MAC,.BAT\" or \".MAC:.BAT\"\n");
fprintf(stderr,
"-E - Include prog,proj in filename when extracting\n");
fprintf(stderr,
" e.g. FILE_ggg_jjj.EXT\n");
fprintf(stderr,
"-S - Use DOS/BATCH-11 6+3 filenames (rather than 9+3)\n");
fprintf(stderr,
"-P pg,pj - Specify prog,proj number when writing to tape\n");
fprintf(stderr,
" Numbers are in octal. Default is [1,1].\n");
exit(1);
}
/*++
* main
*
* Entry point for the dbtap program.
*
* Inputs:
*
* argc - # of supplied arguments
* argv - array of argument strings
*
* Outputs:
*
* None
*
* Returns:
*
* Exit status for dbtap
*
--*/
int main(
int argc,
char *argv[]
)
{
int ch;
uint8 myprog, myproj;
while ((ch = getopt(argc, argv, "lcaer:A:EP:S")) != -1) {
switch (ch) {
case 'l':
list = 1;
break;
case 'c':
create = 1;
break;
case 'a':
append = 1;
break;
case 'e':
extract = 1;
break;
case 'r':
reclen = strtoul(optarg, NULL, 0);
if (reclen < 512)
reclen = 512;
if (reclen > MAXRCLNT)
reclen = MAXRCLNT;
break;
case 'A':
ascii = optarg;
break;
case 'E':
extra = 1;
break;
case 'P':
if (sscanf(optarg, "%hho,%hho", &myprog, &myproj) != 2)
usage();
prog = myprog;
proj = myproj;
break;
case 'S':
strict = 1;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
/*
* Only one of -l, -c, -a, -e can be specified.
*/
if ((list + create + append + extract) != 1)
usage();
if (list != 0) {
/*
* List directories on one or more container files.
*/
if (argc == 0)
usage();
while (argc >= 1) {
switch (OpenTapeForRead(argv[0])) {
case TIO_SUCCESS:
case TIO_ERROR:
printf("%s:\n\n", argv[0]);
listDirectory();
printf("\n");
CloseTape();
break;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", argv[0]);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", argv[0]);
exit(3);
}
argc--, argv++;
}
} else if (create != 0) {
/*
* Create a new container file and append 0 or more files to the tape.
*/
if (argc <= 1)
usage();
switch (OpenTapeForWrite(argv[0])) {
case TIO_SUCCESS:
argc--, argv++;
while (argc >= 1) {
switch (appendFile(argv[0], ascii, prog, proj, reclen, strict)) {
case -1:
fprintf(stderr, "Failed to append %s to tape\n", argv[0]);
fprintf(stderr, "Container file is probably corrupt\n");
exit(6);
case 1:
fprintf(stderr, "Failed to open file %s - skipping\n", argv[0]);
/* FALLTHROUGH */
case 0:
break;
}
argc--, argv++;
}
CloseTape();
break;
case TIO_IOERROR:
fprintf(stderr, "Error writing to container file - %s\n", argv[0]);
exit(5);
case TIO_CREATEFAIL:
fprintf(stderr, "Failed to create container file - %s\n", argv[0]);
exit(3);
}
} else if (append != 0) {
/*
* Open an existing container file and append 0 or more files to the tape.
*/
if (argc <= 1)
usage();
switch (OpenTapeForAppend(argv[0])) {
case TIO_SUCCESS:
case TIO_ERROR:
argc--, argv++;
while (argc >= 1) {
switch (appendFile(argv[0], ascii, prog, proj, reclen, strict)) {
case -1:
fprintf(stderr, "Failed to append %s to tape\n", argv[0]);
fprintf(stderr, "Container file is probably corrupt\n");
exit(6);
case 1:
fprintf(stderr, "Failed to open file %s - skipping\n", argv[0]);
/* FALLTHROUGH */
case 0:
break;
}
argc--, argv++;
}
CloseTape();
break;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", argv[0]);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", argv[0]);
exit(3);
}
} else if (extract != 0) {
/*
* Extract files from one or more container files.
*/
if (argc == 0)
usage();
while (argc >= 1) {
switch (OpenTapeForRead(argv[0])) {
case TIO_SUCCESS:
case TIO_ERROR:
printf("%s:\n\n", argv[0]);
extractFiles(ascii, extra);
printf("\n");
CloseTape();
break;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", argv[0]);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", argv[0]);
exit(3);
}
argc--, argv++;
}
}
return 0;
}

43
extracters/dbtap/dbtap.txt Normal file
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@@ -0,0 +1,43 @@
dbtap manipulates .tap magtape container files used by SIMH and written in
DOS/BATCH-11 file format. dbtap is invoked by:
dbtap -lcae [-r len -A <list> -E -S -P pg,pj] container [...]
To list the contents of one or more container files:
dbtap -l container ...
To create a new container file and append file(s):
dbtap -c [-r len -A <list> -S -P pg,pj] container file ...
To append file(s) to an existing container:
dbtap -a [-r len -A <list> -S -P pg,pj] container file ...
To extract file(s) from container(s):
dbtap -e [-A <list> -E] container ...
Switches:
-r len Specify max tape record size when writing.
(512 <= len <= 65536).
-A <list> By default, files are transferred in Binary mode. This switch
is used to specify file extensions which should be transferred
in Ascii mode (e.g. ".MAC:.BAT" or ".MAC,.BAT").
-E Include prog,proj in filename when extracting.
(e.g. FILE_ggg_jjj.EXT").
-S DOS/BATCH-11 uses 6+3 (name+extension) for filenames including
on magtape. Over time, the magtape definition changed to
allow 9+3 filenames by adding an extra word to the filename
record. By default, this program uses the 9+3 format but
the -S switch may be used to force 6+3 filenames when writing
to tape.
-P pg,pj Specify prog,proj number when writing to tape. Numbers are in
octal. Default is [1,1].

40
extracters/dbtap/defs.h Normal file
View File

@@ -0,0 +1,40 @@
/* defs.h: Common definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#ifndef __DEFS_H__
#define __DEFS_H__
#if defined(VMS)
#include <ints.h>
#else
typedef signed char int8;
typedef signed short int16;
typedef signed int int32;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
#endif
#endif

661
extracters/dbtap/dos11.c Normal file
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@@ -0,0 +1,661 @@
/* dos11.c: Handle DOS/BATCH-11 tape file structure operations
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "dos11.h"
#include "tapeio.h"
/*
* Record buffer.
*/
char record[MAXRCLNT];
FILE *file = NULL;
int CRpending = 0;
char rad50[] = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.%0123456789";
/*
* Table of days/month for both normal and leap years.
*/
unsigned short mnth[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
unsigned short mnthl[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
char *month[12] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
/*++
* r50Asc
*
* Convert 1 16-bit rad50 value into 3 ASCII characters.
*
* Inputs:
*
* value - rad50 value to be converted
* outbuf - pointer to buffer to receive the characters
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
static void r50Asc(
uint16 value,
char *outbuf
)
{
outbuf[2] = rad50[value % 050];
value /= 050;
outbuf[1] = rad50[value % 050];
outbuf[0] = rad50[value / 050];
}
/*++
* r50AscNoSpace
*
* Convert 1 16-bit value into up to 3 ASCII characters, spaces are dropped
* from the conversion.
*
* Inputs:
*
* value - rad50 value to be converted
* outbuf - pointer to the buffer to receive the characters
*
* Outputs:
*
* None
*
* Returns:
*
* # of none space characters converted
*
--*/
static int r50AscNoSpace(
uint16 value,
char *outbuf
)
{
int count = 0;
int value2 = value / 050;
/*
* The rad50 representation of ' ' is zero.
*/
if ((value2 / 050) != 0)
outbuf[count++] = rad50[value2 / 050];
if ((value2 % 050) != 0)
outbuf[count++] = rad50[value2 % 050];
if ((value % 050) != 0)
outbuf[count++] = rad50[value % 050];
return count;
}
/*++
* AscR50
*
* Converts 3 characters into a single 16-bit rad50 value. If an input
* character is not in the rad50 character set it is converted to '%'.
*
* Inputs:
*
* inbuf - pointer to the buffer with the 3 characters
*
* Outputs:
*
* None
*
* Returns:
*
* rad50 value for the 3 characters
*
--*/
static uint16 AscR50(
char *inbuf
)
{
uint16 value;
char *ptr;
if ((ptr = strchr(rad50, toupper(*inbuf++))) == NULL)
ptr = strchr(rad50, '%');
value = (ptr - rad50) * 03100;
if ((ptr = strchr(rad50, toupper(*inbuf++))) == NULL)
ptr = strchr(rad50, '%');
value += (ptr - rad50) * 050;
if ((ptr = strchr(rad50, toupper(*inbuf))) == NULL)
ptr = strchr(rad50, '%');
value += ptr - rad50;
return value;
}
/*++
* dos11Date
*
* Convert a DOS/BATCH-11 date value into an ASCII string.
*
* Inputs:
*
* value - DOS/BATCH-11 date value
* buf - buffer to receive the string (requires 12 bytes)
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
static void dos11Date(
uint16 value,
char *buf
)
{
unsigned short year, doyr, leapyr;
unsigned short *table;
/*
* The DOS/BATCH-11 date format covers a range of 1970 - 2035.
*/
year = 1970 + value / 1000;
doyr = value % 1000;
leapyr = ((year % 4) == 0) && (year != 2000);
table = leapyr ? mnthl : mnth;
/*
* Check for valid day of year.
*/
if (doyr < (leapyr ? 366 : 365)) {
int i = 0;
while (doyr > table[i])
doyr -= table[i++];
sprintf(buf, "%2d-%s-%4d", doyr, month[i], year);
} else strcpy(buf, "xx-yyy-xxxx");
}
/*++
* initAscii
*
* Initialize variables for ASCII mode transfers (translates CRLF -> LF).
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
static void initAscii(void)
{
CRpending = 0;
}
/*++
* xferAscii
*
* Write data to the current output file while performing CRLF translation.
*
* Inputs:
*
* ch - the next character to be output to the file
*
* Outputs:
*
* None
*
* Returns:
*
* # of errors returned by fwrite
*
--*/
static char cr = '\r';
static int xferAscii(
char ch
)
{
int count = 0;
if (ch == '\r') {
if (CRpending != 0)
if (fwrite(&cr, sizeof(char), 1, file) != 1)
count++;
CRpending = 1;
return count;
}
if (CRpending != 0) {
CRpending = 0;
if (ch != '\n')
if (fwrite(&cr, sizeof(char), 1, file) != 1)
count++;
}
if (fwrite(&ch, sizeof(ch), 1, file) != 1)
count++;
return count;
}
/*++
* flushAscii
*
* Flush any pending CR to the output file
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* # of errors returned by fwrite (0 or 1)
*
--*/
static int flushAscii(void)
{
if (CRpending != 0)
if (fwrite(&cr, sizeof(char), 1, file) != 1)
return 1;
return 0;
}
/*++
* appendFile
*
* Append a file to the current open tape.
*
* Inputs:
*
* name - pointer to the filename string to append
* ascii - pointer to string containing extensions whose files
* are to be appended in ASCII mode.
* e.g. ".MAC:.BAT" or ".MAC.BAT"
* prog - programmer number for the directory entry
* proj - project number for the directory entry
* reclen - record length to use on the 'tape'
* strict - if 1, use strict DOS/BATCH-11 format file headers
* i.e. dos11hdr1
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if file successfully appended,
* 1 if failed to open the input file
* -1 if some data may have been written to the tape which is now corrupt
*
--*/
int appendFile(
char *name,
char *ascii,
uint8 prog,
uint8 proj,
int reclen,
int strict
)
{
size_t hdrSz = strict ? sizeof(struct dos11hdr1) : sizeof(struct dos11hdr2);
struct dos11hdr2 hdr;
char *fname, *ext, *useAscii;
time_t now;
struct tm *tm;
memset(&hdr, 0, sizeof(hdr));
if ((file = fopen(name, "r")) != NULL) {
char filename[16], extension[8], exten[8];
int i, len;
size_t datalen;
/*
* We now need to convert the supplied filename into something that
* fits into the DOS/BATCH-11 file header structure(s).
*/
if ((fname = strrchr(name, '/')) == NULL)
fname = name;
ext = strrchr(fname, '.');
/*
* Fill int the first 'n' bytes of the filename and extension with the
* remaining bytes set to ' '.
*/
memset(&filename, ' ', sizeof(filename));
memset(&extension, ' ', sizeof(extension));
memset(&exten, 0, sizeof(exten));
if (ext != NULL)
len = ext - fname;
else len = strlen(fname);
if (len > (strict ? 6 : 9))
len = strict ? 6 : 9;
for (i = 0; i < len; i++)
filename[i] = toupper(fname[i]);
if (ext != NULL) {
len = strlen(&ext[1]);
if (len > 3)
len = 3;
for (i = 0; i < len + 1; i++) {
extension[i] = toupper(ext[i]);
exten[i] = toupper(ext[i]);
}
}
/*
* Construct the directory entry
*/
hdr.fname[0] = AscR50(&filename[0]);
hdr.fname[1] = AscR50(&filename[3]);
if (!strict)
hdr.fname3 = AscR50(&filename[6]);
if (ext != NULL)
hdr.ext = AscR50(&extension[1]);
hdr.proj = proj;
hdr.prog = prog;
hdr.prot = 0233;
now = time(NULL);
tm = localtime(&now);
hdr.date = ((tm->tm_year - 70) * 1000) + tm->tm_yday + 1;
useAscii = strstr(ascii, exten);
if (WriteTapeRecord(&hdr, hdrSz) == 0) {
initTapeBuffering(reclen);
while ((datalen = fread(record, sizeof(char), reclen, file)) != 0) {
if (ferror(file))
goto failed;
if (useAscii != NULL) {
size_t j;
for (j = 0; j < datalen; i++) {
if (record[j] == '\n')
if (writeTapeBuffering('\r') != 0)
goto failed;
if (writeTapeBuffering(record[j]) != 0)
goto failed;
}
} else {
if (WriteTapeRecord(record, datalen) != 0)
goto failed;
}
}
if (flushTapeBuffering() != 0)
goto failed;
if ((WriteTapeMark(0) == 0) && (WriteTapeMark(1) == 0)) {
fclose(file);
return 0;
}
}
failed:
fclose(file);
return -1;
}
return 1;
}
/*++
* extractFiles
*
* Extract files from the current open tape to the current working
* directory.
*
* Inputs:
*
* ascii - pointer to string containing extensions whose files
* are to be extracted in ASCII mode.
* e.g. ".MAC:.BAT" or ".MAC.BAT"
* ppn - if non-zero, append proj, prog numbers to the name:
* filename_prog_proj.ext
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void extractFiles(
char *ascii,
int ppn
)
{
unsigned int status;
do {
switch (status = ReadTapeRecord(record, sizeof(record))) {
case ST_EOM:
break;
case ST_TM:
/* Second tape mark in a row - treat as end of medium */
status = ST_EOM;
break;
default:
if ((status & ST_ERROR) == 0) {
status &= ST_LENGTH;
if ((status == sizeof(struct dos11hdr1)) ||
(status == sizeof(struct dos11hdr2))) {
char filename[32];
struct dos11hdr2 *hdr = (struct dos11hdr2 *)record;
int offset = 0, extension;
char *useAscii;
uint32 errorCount = 0, length, i;
/*
* Construct the output filename
*/
offset += r50AscNoSpace(hdr->fname[0], &filename[offset]);
offset += r50AscNoSpace(hdr->fname[1], &filename[offset]);
if (status == sizeof(struct dos11hdr2))
offset += r50AscNoSpace(hdr->fname3, &filename[offset]);
if (ppn) {
sprintf(&filename[offset], "_%o_%o", hdr->prog, hdr->proj);
offset = strlen(filename);
}
extension = offset;
filename[offset++] = '.';
offset += r50AscNoSpace(hdr->ext, &filename[offset]);
filename[offset++] = '\0';
useAscii = strstr(ascii, &filename[extension]);
printf(" Extracting: %s ", filename);
initAscii();
if ((file = fopen(filename, "w")) != NULL) {
do {
switch (status = ReadTapeRecord(record, sizeof(record))) {
case ST_EOM:
case ST_TM:
break;
default:
if ((status & ST_ERROR) != 0)
errorCount++;
length = status & ST_LENGTH;
if (useAscii != NULL) {
/*
* Process each character separately in order to map
* CRLF -> LF.
*/
for (i = 0; i < length; i++)
xferAscii(record[i]);
} else {
if (fwrite(record, sizeof(char), length, file) != length)
errorCount++;
}
}
} while ((status != ST_EOM) && (status != ST_TM));
flushAscii();
printf("%s \n", errorCount ? "Errors detected" : "Done");
fclose(file);
break;
} else printf("*** File open failure\n");
} else fprintf(stderr, " *** Unexpected record size\n");
} else fprintf(stderr, " *** Directory entry contains error\n");
/*
* Scan forward to the end of this file
*/
do {
status = ReadTapeRecordLength();
} while ((status != ST_EOM) && (status != ST_TM));
}
} while (status != ST_EOM);
}
/*++
* listDirectory
*
* List the directory from the current open tape to stdout.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void listDirectory(void)
{
unsigned int status;
do {
switch (status = ReadTapeRecord(record, sizeof(record))) {
case ST_EOM:
break;
case ST_TM:
/* Second tape mark in a row - treat as end of medium */
status = ST_EOM;
break;
default:
if ((status & ST_ERROR) == 0) {
status &= ST_LENGTH;
if ((status == sizeof(struct dos11hdr1)) ||
(status == sizeof(struct dos11hdr2))) {
char filename[14], sdate[12];
struct dos11hdr2 *hdr = (struct dos11hdr2 *)record;
uint32 errorCount = 0, length = 0;
memset(filename, ' ', sizeof(filename));
filename[13] = '\0';
r50Asc(hdr->fname[0], &filename[0]);
r50Asc(hdr->fname[1], &filename[3]);
if (status == sizeof(struct dos11hdr2))
r50Asc(hdr->fname3, &filename[6]);
filename[9] = '.';
r50Asc(hdr->ext, &filename[10]);
dos11Date(hdr->date, sdate);
printf("%s %s <%03o> [%3o,%3o] ",
filename, sdate, hdr->prot, hdr->prog, hdr->proj);
do {
switch (status = ReadTapeRecordLength()) {
case ST_EOM:
case ST_TM:
printf("%u bytes%s\n", length, errorCount ? "(E)" : "");
break;
default:
if ((status & ST_ERROR) != 0)
errorCount++;
length += status & ST_LENGTH;
break;
}
} while ((status != ST_EOM) && (status != ST_TM));
break;
} else fprintf(stderr, " *** Unexpected record size\n");
} else fprintf(stderr, " *** Directory entry contains error\n");
/*
* Scan forward to the end of this file
*/
do {
status = ReadTapeRecordLength();
} while ((status != ST_EOM) && (status != ST_TM));
}
} while (status != ST_EOM);
}

60
extracters/dbtap/dos11.h Normal file
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@@ -0,0 +1,60 @@
/* dos11.h: DOS/BATCH-11 tape file format definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include "defs.h"
/*
* Actual file header as used in DOS/BATCH-11.
*/
struct dos11hdr1 {
uint16 fname[2]; /* first 6 chars of filename (RAD50) */
uint16 ext; /* 3 letter file extension (RAD50) */
uint8 proj; /* project # (octal) */
uint8 prog; /* programmer # (octal) */
uint16 prot; /* protection code (octal) */
uint16 date; /* (year-1970) * 1000 + day of year */
};
/*
* File header as seen on many archive tapes.
*/
struct dos11hdr2 {
uint16 fname[2]; /* first 6 chars of filename (RAD50) */
uint16 ext; /* 3 letter file extension (RAD50) */
uint8 proj; /* project # (octal) */
uint8 prog; /* programmer # (octal) */
uint16 prot; /* protection code (octal) */
uint16 date; /* (year-1970) * 1000 + day of year */
uint16 fname3; /* optional, letters 7 - 9 of name */
};
/*
* DOS/BATCH-11 processing functions
*/
int appendFile(char *, char *, uint8, uint8, int, int);
void extractFiles(char *, int);
void listDirectory(void);

50
extracters/dbtap/tap.h Normal file
View File

@@ -0,0 +1,50 @@
/* tap.h: simh tape representation definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
/*
* Metadata markers
*/
#define ST_EOM 0xFFFFFFFF /* end of medium */
#define ST_GAP 0xFFFFFFFE /* erase gap */
#define ST_TM 0x00000000 /* tape mark */
/*
* Record length field layout
*/
#define ST_ERROR 0x80000000 /* record contains an error */
#define ST_MBZ 0x7F000000 /* must be zero */
#define ST_LENGTH 0x00FFFFFF /* record length */
/*
* Data in the .tap containe file is rounded up to an even number of bytes
*/
#define RECLEN(c) (((c) + 1) & ~1)
/*
* The maximum record length supported by this code is 64K.
*/
#define MAXRCLNT 65536

614
extracters/dbtap/tapeio.c Normal file
View File

@@ -0,0 +1,614 @@
/* tapeio.c: Tape I/O routines
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include "tapeio.h"
FILE *tfile = NULL;
char buffer[MAXRCLNT];
int rLength, occupied;
static int verifyFormat(void);
/*++
* OpenTapeForRead
*
* Open an existing SIMH .tap format file for read access. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForRead(
char *name
)
{
if ((tfile = fopen(name, "r")) != NULL) {
int status;
status = verifyFormat();
rewind(tfile);
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape();
return status;
}
return TIO_OPENFAIL;
}
/*++
* OpenTapeForWrite
*
* Create a new SIMH .tap format fiole for write access. Two tape marks are
* written to the file and the file handle is rewound to the beginning of the
* file. If the file already exists, and error (TIO_CREATEFAIL) is returned.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully created
* TIO_IOERROR - I/O error writing the initial file contents
* TIO_CREATEFAIL - file create failed
*
--*/
int OpenTapeForWrite(
char *name
)
{
/*
* Fail if the file exists
*/
if (access(name, F_OK) == 0)
return TIO_CREATEFAIL;
if ((tfile = fopen(name, "w+")) != NULL) {
uint32 tm = 0;
int status = TIO_SUCCESS;
/*
* Write 2 tape marks
*/
if (fwrite(&tm, sizeof(tm), 2, tfile) != 2)
status = TIO_IOERROR;
if (status == TIO_SUCCESS) {
rewind(tfile);
return TIO_SUCCESS;
}
/*
* Failed to write the 2 tape marks. Try to delete the file before
* returning an error.
*/
CloseTape();
unlink(name);
return TIO_IOERROR;
}
return TIO_CREATEFAIL;
}
/*++
* OpenTapeForAppend
*
* Open an existing SIMH .tap format file for write access, leaving the
* file handle positioned just before the final tape mark. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForAppend(
char *name
)
{
if ((tfile =fopen(name, "r+")) != NULL) {
int status;
status = verifyFormat();
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape();
return status;
}
return TIO_OPENFAIL;
}
/*++
* CloseTape
*
* If the tape is open, close it.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void CloseTape(void)
{
if (tfile != NULL)
fclose(tfile);
tfile = NULL;
}
/*++
* verifyFormat
*
* Verify the format of the SIMH .tap file. If the format is valid, leave
* the file handle positioned right before the last tape mark in the file.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file format is correct
* TIO_ERROR - file format is correct, error records detected
* TIO_CORRUPT - file format is invalid
* TIO_IOERROR - I/O errror while processing file
*
--*/
static int verifyFormat(void)
{
int errorCount = 0, tmSeen = 0;
uint8 meta[4];
uint32 header, bc;
off_t position;
struct stat stat;
/*
* Determine the size of the file.
*/
fstat(fileno(tfile), &stat);
for (;;) {
position = ftello(tfile);
/*
* If we are position at the end of file, there is a tape mark missing.
* Treat it as though there is one present.
*/
if (position == stat.st_size)
return TIO_SUCCESS;
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_TM:
if (++tmSeen <= 1)
break;
/* Treat second TM in a row as end of medium */
/* FALLTHROUGH */
case ST_EOM:
if (fseek(tfile, -sizeof(meta), SEEK_CUR) != 0)
return TIO_IOERROR;
return errorCount ? TIO_ERROR : TIO_SUCCESS;
case ST_GAP:
break;
default:
/*
* Record descriptor
*/
tmSeen = 0;
header = bc;
if ((bc & ST_ERROR) != 0)
errorCount++;
if ((bc & ST_MBZ) != 0)
return TIO_CORRUPT;
bc = RECLEN(bc & ST_LENGTH);
/*
* Check if we are seeking outside of the file. If so, this is not
* a .tap container file.
*/
if ((position + bc + (2 * sizeof(meta))) > (unsigned long long)stat.st_size)
return TIO_CORRUPT;
if (fseek(tfile, bc, SEEK_CUR) != 0)
return TIO_CORRUPT;
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
if (header != bc)
return TIO_CORRUPT;
}
}
}
/*++
* ReadTapeRecord
*
* Read the next record from the tape into the specified buffer. If the
* buffer is smaller than the record, the entire record will be consumed.
*
* Inputs:
*
* buf - pointer to the buffer to receive the data
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecord(
void *buf,
int len
)
{
long pos = ftell(tfile);
uint8 meta[4];
uint32 bc, erflag, length;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
length = (uint32)len;
if (bc < length)
length = bc;
if (fread(buf, sizeof(uint8), length, tfile) != length)
return ST_EOM;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(tfile, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | length;
}
return ST_EOM;
}
/*++
* ReadTapeRecordLength
*
* Get the length of the next record on the tape without actually reading
* the data.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecordLength(void)
{
long pos = ftell(tfile);
uint8 meta[4];
uint32 bc, erflag;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(tfile, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | bc;
}
return ST_EOM;
}
/*++
* WriteTapeRecord
*
* Write a record to the tape at it's current position.
*
* Inputs:
*
* buf - pointer to the buffer to be written
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if record was written successfully, -1 if write failed
*
--*/
int WriteTapeRecord(
void *buf,
int len
)
{
uint8 meta[4];
int datalen;
meta[0] = len & 0xFF;
meta[1] = (len >> 8) & 0xFF;
meta[2] = (len >> 16) & 0xFF;
meta[3] = (len >> 24) & 0xFF;
datalen = (len + 1) & ~1;
if (fwrite(meta, sizeof(meta), 1, tfile) != 1)
return -1;
if (fwrite(buf, datalen, 1, tfile) != 1)
return -1;
if (fwrite(meta, sizeof(meta), 1, tfile) != 1)
return -1;
return 0;
}
/*++
* WriteTapeMark
*
* Write a tape mark to the tape at it's current position and, optionally,
* backup to before the tape mark.
*
* Inputs:
*
* backup - if 1, reposition the tape to before the tape mark
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if tape mark was written successfully, -1 if write failed
*
--*/
int WriteTapeMark(
int backup
)
{
uint32 tm = 0;
if (fwrite(&tm, sizeof(tm), 1, tfile) != 1)
return -1;
if (backup)
if (fseek(tfile, -sizeof(tm), SEEK_CUR) != 0)
return -1;
return 0;
}
/*++
* initTapeBuffering
*
* Initialize variables for writes to tape for ASCII mode transfers
* (translates LF -> CRLF).
*
* Inputs:
*
* reclen - size of the tape record buffer to use
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void initTapeBuffering(
int reclen
)
{
rLength = reclen;
occupied = 0;
}
/*++
* flushTapeBuffering
*
* Flush any pending data out to the current tape.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if data was successfully flushed, -1 if write failed
*
--*/
int flushTapeBuffering(void)
{
uint32 count = occupied;
occupied = 0;
if (count != 0)
return WriteTapeRecord(buffer, count);
return 0;
}
/*++
* writeTapeBuffering
*
* Write a character to the current tape, buffering the data into records.
*
* Inputs:
*
* ch - the character to be output
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if character was successfully buffered or written to tape, -1 if
* write failed
*
--*/
int writeTapeBuffering(
char ch
)
{
buffer[occupied++] = ch;
if (occupied == rLength) {
occupied = 0;
return WriteTapeRecord(buffer, rLength);
}
return 0;
}

62
extracters/dbtap/tapeio.h Normal file
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/* tapeio.h: Tape I/O definitions
Copyright (c) 2015, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include "tap.h"
#include "defs.h"
/*
* Tape open status return codes
*/
#define TIO_SUCCESS 0 /* operation successful */
#define TIO_ERROR -1 /* error record seen */
#define TIO_CORRUPT -2 /* tape format is corrupt */
#define TIO_OPENFAIL -3 /* open operation failed */
#define TIO_CREATEFAIL -4 /* create operation failed */
#define TIO_IOERROR -5 /* I/O error */
/*
* Tape open/close routines.
*/
extern int OpenTapeForRead(char *);
extern int OpenTapeForWrite(char *);
extern int OpenTapeForAppend(char *);
extern void CloseTape(void);
/*
* Tape I/O routines.
*/
uint32 ReadTapeRecord(void *, int);
uint32 ReadTapeRecordLength(void);
int WriteTapeRecord(void *, int);
int WriteTapeMark(int);
/*
* Buffered I/O routines
*/
void initTapeBuffering(int);
int flushTapeBuffering(void);
int writeTapeBuffering(char);

21
extracters/rawtap/Makefile Normal file
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@@ -0,0 +1,21 @@
# all of these can be over-ridden on the "make" command line if don't suit
# your environment
TOOL=rawtap
CFLAGS=-O2 -Wall -Wshadow -Wextra -pedantic -Woverflow -Wstrict-overflow
BIN=/usr/local/bin
INSTALL=install
CC=gcc
$(TOOL): $(TOOL).c tapeio.c tapeio.h tap.h defs.h
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -o $(TOOL) $(TOOL).c tapeio.c $(LDLIBS)
.PHONY: clean install uninstall
clean:
rm -f $(TOOL)
install: $(TOOL)
$(INSTALL) -p -m u=rx,g=rx,o=rx $(TOOL) $(BIN)
uninstall:
rm -f $(BIN)/$(TOOL)

40
extracters/rawtap/defs.h Normal file
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@@ -0,0 +1,40 @@
/* defs.h: Common definitions
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#ifndef __DEFS_H__
#define __DEFS_H__
#if defined(VMS)
#include <ints.h>
#else
typedef signed char int8;
typedef signed short int16;
typedef signed int int32;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
#endif
#endif

293
extracters/rawtap/rawtap.c Normal file
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@@ -0,0 +1,293 @@
/* rawtap.c: process tape files within a SIMH .tap container
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "tapeio.h"
#define MINRECLEN 1
#define MAXRECLEN 65536
#define DEFRECLEN 10240
int reclen = DEFRECLEN, seqno = 1;
int create = 0, append = 0, extract = 0;
char record[MAXRCLNT];
/*++
* usage
*
* Display a usage message on stderr and exit.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void usage(void)
{
fprintf(stderr, "Usage: rawtap -cae container [-r len] [...]\n\n");
fprintf(stderr,
" Create new container and append file(s):\n");
fprintf(stderr,
" rawtap -c container [-r len] file ...\n\n");
fprintf(stderr,
" Append file(s) to an existing container:\n");
fprintf(stderr,
" rawtap -a container [-r len] file ...\n\n");
fprintf(stderr,
" Extract files from container(s):\n");
fprintf(stderr,
" rawtap -e container ...\n");
fprintf(stderr,
" - Extracted files will be name 00001.dat, 00002.dat etc\n\n");
fprintf(stderr,
"\nSwitches:\n\n");
fprintf(stderr,
"-r len - Specify max tape record size (%u <= len <= %u)\n",
MINRECLEN, MAXRECLEN);
fprintf(stderr,
" The record size applies to all following files and\n");
fprintf(stderr,
" there may be several \"-r nnn\" present on the command line.\n");
fprintf(stderr,
" The default record size is 10240 bytes.\n\n");
exit(1);
}
/*++
* main
*
* Entry point for the rawtap program.
*
* Inputs:
*
* argc - # of supplied arguments
* argv - array of argument strings
*
* Outputs:
*
* None
*
* Returns:
*
* Exit status for rawtap
*
--*/
int main(
int argc,
char *argv[]
)
{
int readError = 0, writeError = 0;
char *s, filename[16];
FILE *file;
unsigned int status;
if ((argc < 2) || (argv[0] == NULL))
usage();
argc--, argv++;
s = argv[0];
if ((s != NULL) && (*s++ == '-')) {
++argv, --argc;
switch (*s) {
case 'c':
create = 1;
break;
case 'a':
append = 1;
break;
case 'e':
extract = 1;
break;
default:
fprintf(stderr, "Bad option: %c\n", *s);
usage();
}
}
if (create != 0) {
/*
* Create a new container file and append 0 or more files to the tape.
*/
if (argc <= 1)
usage();
switch (OpenTapeForWrite(argv[0])) {
case TIO_SUCCESS:
appendFiles:
argc--, argv++;
while (argc >= 1) {
if (strcmp(argv[0], "-r") == 0) {
argc--, argv++;
if (argc >= 1) {
reclen = strtol(argv[0], NULL, 10);
if (reclen < MINRECLEN)
reclen = MINRECLEN;
if (reclen > MAXRECLEN)
reclen = MAXRECLEN;
argc--, argv++;
}
continue;
}
if ((file = fopen(argv[0], "r")) != NULL) {
size_t datalen;
while ((datalen = fread(record, sizeof(char), reclen, file)) != 0) {
if (ferror(file)) {
readError++;
break;
}
if (WriteTapeRecord(record, datalen) != 0) {
writeError++;
break;
}
}
fclose(file);
if ((WriteTapeMark(0) != 0) || (WriteTapeMark(1) != 0))
writeError++;
} else {
writeError++;
break;
}
argc--, argv++;
}
CloseTape();
break;
case TIO_IOERROR:
fprintf(stderr, "Error writing to container file %s\n", argv[0]);
exit(5);
case TIO_CREATEFAIL:
fprintf(stderr, "Failed to create container file - %s\n", argv[0]);
exit(3);
}
} else if (append != 0) {
/*
* Open an existing container file and append 0 or more files to the tape.
*/
if (argc <= 1)
usage();
switch (OpenTapeForAppend(argv[0])) {
case TIO_SUCCESS:
case TIO_ERROR:
goto appendFiles;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", argv[0]);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", argv[0]);
exit(3);
}
} else if (extract != 0) {
/*
* Extract files from one or more container files.
*/
if (argc == 0)
usage();
while (argc >= 1) {
switch (OpenTapeForRead(argv[0])) {
case TIO_SUCCESS:
case TIO_ERROR:
/*
* Extract files from the container file.
*/
do {
switch (status = ReadTapeRecord(record, sizeof(record))) {
case ST_EOM:
break;
case ST_TM:
/* Second tape mark in a row - treat as end of medium */
status = ST_EOM;
break;
default:
if ((status & ST_ERROR) == 0) {
sprintf(filename, "%05u.dat", seqno++);
if ((file = fopen(filename, "w")) != NULL) {
while ((status != ST_EOM) && (status != ST_TM)) {
size_t length = status & ST_LENGTH;
if ((status & ST_ERROR) != 0)
readError++;
if (fwrite(record, sizeof(char), length, file) != length)
writeError++;
status = ReadTapeRecord(record, sizeof(record));
}
} else writeError++;
}
break;
}
} while (status != ST_EOM);
CloseTape();
break;
case TIO_CORRUPT:
fprintf(stderr, "%s is not a SIMH .tap container file\n", argv[0]);
exit(2);
case TIO_OPENFAIL:
fprintf(stderr, "%s open failed\n", argv[0]);
exit(3);
}
argc--, argv++;
}
}
if ((readError != 0) || (writeError != 0)) {
fprintf(stderr, "Read Errors: %d, Write Errors: %d\n",
readError, writeError);
return 4;
}
return 0;
}

24
extracters/rawtap/rawtap.txt Normal file
View File

@@ -0,0 +1,24 @@
rawtap manipulates .tap magtape container files used by SIMH. rawtap is
invoked by:
rawtap -cae container [-r len] [...]
To create a new container file and append file(s):
rawtap -c container [-r len] file ...
To append file(s) to an existing container file:
rawtap -a container [-r len] file ...
To extract files from container file(s):
rawtap -e container ...
Switches:
-r len Specify max tape record size when writing to tape.
(1 <= len <= 65536). The new record size applies to all
following files on the command line. There may be multiple
"-r len" on the command line if the record size needs to be
different across multiple files.

50
extracters/rawtap/tap.h Normal file
View File

@@ -0,0 +1,50 @@
/* tap.h: simh tape representation definitions
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
/*
* Metadata markers
*/
#define ST_EOM 0xFFFFFFFF /* end of medium */
#define ST_GAP 0xFFFFFFFE /* erase gap */
#define ST_TM 0x00000000 /* tape mark */
/*
* Record length field layout
*/
#define ST_ERROR 0x80000000 /* record contains an error */
#define ST_MBZ 0x7F000000 /* must be zero */
#define ST_LENGTH 0x00FFFFFF /* record length */
/*
* Data in the .tap container file is rounded up to an even number of bytes
*/
#define RECLEN(c) (((c) + 1) & ~1)
/*
* The maximum record length supported by this code is 64K.
*/
#define MAXRCLNT 65536

614
extracters/rawtap/tapeio.c Normal file
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@@ -0,0 +1,614 @@
/* tapeio.c: Tape I/O routines
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include "tapeio.h"
FILE *tfile = NULL;
char buffer[MAXRCLNT];
int rLength, occupied;
static int verifyFormat(void);
/*++
* OpenTapeForRead
*
* Open an existing SIMH .tap format file for read access. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForRead(
char *name
)
{
if ((tfile = fopen(name, "r")) != NULL) {
int status;
status = verifyFormat();
rewind(tfile);
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape();
return status;
}
return TIO_OPENFAIL;
}
/*++
* OpenTapeForWrite
*
* Create a new SIMH .tap format fiole for write access. Two tape marks are
* written to the file and the file handle is rewound to the beginning of the
* file. If the file already exists, and error (TIO_CREATEFAIL) is returned.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully created
* TIO_IOERROR - I/O error writing the initial file contents
* TIO_CREATEFAIL - file create failed
*
--*/
int OpenTapeForWrite(
char *name
)
{
/*
* Fail if the file exists
*/
if (access(name, F_OK) == 0)
return TIO_CREATEFAIL;
if ((tfile = fopen(name, "w+")) != NULL) {
uint32 tm = 0;
int status = TIO_SUCCESS;
/*
* Write 2 tape marks
*/
if (fwrite(&tm, sizeof(tm), 2, tfile) != 2)
status = TIO_IOERROR;
if (status == TIO_SUCCESS) {
rewind(tfile);
return TIO_SUCCESS;
}
/*
* Failed to write the 2 tape marks. Try to delete the file before
* returning an error.
*/
CloseTape();
unlink(name);
return TIO_IOERROR;
}
return TIO_CREATEFAIL;
}
/*++
* OpenTapeForAppend
*
* Open an existing SIMH .tap format file for write access, leaving the
* file handle positioned just before the final tape mark. If the file is
* successfully opened, scan the file to determine if it is a valid .tap
* format file and whether there are error records present.
*
* Inputs:
*
* name - name of the file
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file successfully opened, format is valid
* TIO_ERROR - file successfully opened, error records present
* TIO_CORRUPT - file successfully opened, format is invalid
* TIO_OPENFAIL - file open failed
*
* Note the file remains open if the return status is TIO_SUCCESS or
* TIO_ERROR
*
--*/
int OpenTapeForAppend(
char *name
)
{
if ((tfile =fopen(name, "r+")) != NULL) {
int status;
status = verifyFormat();
if ((status != TIO_SUCCESS) && (status != TIO_ERROR))
CloseTape();
return status;
}
return TIO_OPENFAIL;
}
/*++
* CloseTape
*
* If the tape is open, close it.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void CloseTape(void)
{
if (tfile != NULL)
fclose(tfile);
tfile = NULL;
}
/*++
* verifyFormat
*
* Verify the format of the SIMH .tap file. If the format is valid, leave
* the file handle positioned right before the last tape mark in the file.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* TIO_SUCCESS - file format is correct
* TIO_ERROR - file format is correct, error records detected
* TIO_CORRUPT - file format is invalid
* TIO_IOERROR - I/O errror while processing file
*
--*/
static int verifyFormat(void)
{
int errorCount = 0, tmSeen = 0;
uint8 meta[4];
uint32 header, bc;
off_t position;
struct stat stat;
/*
* Determine the size of the file.
*/
fstat(fileno(tfile), &stat);
for (;;) {
position = ftello(tfile);
/*
* If we are position at the end of file, there is a tape mark missing.
* Treat it as though there is one present.
*/
if (position == stat.st_size)
return TIO_SUCCESS;
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_TM:
if (++tmSeen <= 1)
break;
/* Treat second TM in a row as end of medium */
/* FALLTHROUGH */
case ST_EOM:
if (fseek(tfile, -sizeof(meta), SEEK_CUR) != 0)
return TIO_IOERROR;
return errorCount ? TIO_ERROR : TIO_SUCCESS;
case ST_GAP:
break;
default:
/*
* Record descriptor
*/
tmSeen = 0;
header = bc;
if ((bc & ST_ERROR) != 0)
errorCount++;
if ((bc & ST_MBZ) != 0)
return TIO_CORRUPT;
bc = RECLEN(bc & ST_LENGTH);
/*
* Check if we are seeking outside of the file. If so, this is not
* a .tap container file.
*/
if ((position + bc + (2 * sizeof(meta))) > (unsigned long long)stat.st_size)
return TIO_CORRUPT;
if (fseek(tfile, bc, SEEK_CUR) != 0)
return TIO_CORRUPT;
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return TIO_CORRUPT;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
if (header != bc)
return TIO_CORRUPT;
}
}
}
/*++
* ReadTapeRecord
*
* Read the next record from the tape into the specified buffer. If the
* buffer is smaller than the record, the entire record will be consumed.
*
* Inputs:
*
* buf - pointer to the buffer to receive the data
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecord(
void *buf,
int len
)
{
long pos = ftell(tfile);
uint8 meta[4];
uint32 bc, erflag, length;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
length = (uint32)len;
if (bc < length)
length = bc;
if (fread(buf, sizeof(uint8), length, tfile) != length)
return ST_EOM;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(tfile, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | length;
}
return ST_EOM;
}
/*++
* ReadTapeRecordLength
*
* Get the length of the next record on the tape without actually reading
* the data.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* ST_EOM - end of medium detected
* ST_TM - tape mark detected
* Other - record length (including error flag)
* if the buffer is smaller than the record, the
* length returned will be that of the buffer
*
--*/
uint32 ReadTapeRecordLength(void)
{
long pos = ftell(tfile);
uint8 meta[4];
uint32 bc, erflag;
/*
* Note: any I/O errors are treated as "end of medium" detection.
*/
if (fread(meta, sizeof(meta), 1, tfile) != 1)
return ST_EOM;
bc = (((unsigned int)meta[3]) << 24) |
(((unsigned int)meta[2]) << 16) |
(((unsigned int)meta[1]) << 8) |
(unsigned int)meta[0];
switch (bc) {
case ST_EOM:
case ST_TM:
return bc;
default:
erflag = bc & ST_ERROR;
bc &= ST_LENGTH;
/*
* Now position the file after this record.
*/
pos += RECLEN(bc) + (2 * sizeof(meta));
if (fseek(tfile, pos, SEEK_SET) != 0)
return ST_EOM;
return erflag | bc;
}
return ST_EOM;
}
/*++
* WriteTapeRecord
*
* Write a record to the tape at it's current position.
*
* Inputs:
*
* buf - pointer to the buffer to be written
* len - length of the buffer
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if record was written successfully, -1 if write failed
*
--*/
int WriteTapeRecord(
void *buf,
int len
)
{
uint8 meta[4];
int datalen;
meta[0] = len & 0xFF;
meta[1] = (len >> 8) & 0xFF;
meta[2] = (len >> 16) & 0xFF;
meta[3] = (len >> 24) & 0xFF;
datalen = (len + 1) & ~1;
if (fwrite(meta, sizeof(meta), 1, tfile) != 1)
return -1;
if (fwrite(buf, datalen, 1, tfile) != 1)
return -1;
if (fwrite(meta, sizeof(meta), 1, tfile) != 1)
return -1;
return 0;
}
/*++
* WriteTapeMark
*
* Write a tape mark to the tape at it's current position and, optionally,
* backup to before the tape mark.
*
* Inputs:
*
* backup - if 1, reposition the tape to before the tape mark
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if tape mark was written successfully, -1 if write failed
*
--*/
int WriteTapeMark(
int backup
)
{
uint32 tm = 0;
if (fwrite(&tm, sizeof(tm), 1, tfile) != 1)
return -1;
if (backup)
if (fseek(tfile, -sizeof(tm), SEEK_CUR) != 0)
return -1;
return 0;
}
/*++
* initTapeBuffering
*
* Initialize variables for writes to tape for ASCII mode transfers
* (translates LF -> CRLF).
*
* Inputs:
*
* reclen - size of the tape record buffer to use
*
* Outputs:
*
* None
*
* Returns:
*
* None
*
--*/
void initTapeBuffering(
int reclen
)
{
rLength = reclen;
occupied = 0;
}
/*++
* flushTapeBuffering
*
* Flush any pending data out to the current tape.
*
* Inputs:
*
* None
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if data was successfully flushed, -1 if write failed
*
--*/
int flushTapeBuffering(void)
{
uint32 count = occupied;
occupied = 0;
if (count != 0)
return WriteTapeRecord(buffer, count);
return 0;
}
/*++
* writeTapeBuffering
*
* Write a character to the current tape, buffering the data into records.
*
* Inputs:
*
* ch - the character to be output
*
* Outputs:
*
* None
*
* Returns:
*
* 0 if character was successfully buffered or written to tape, -1 if
* write failed
*
--*/
int writeTapeBuffering(
char ch
)
{
buffer[occupied++] = ch;
if (occupied == rLength) {
occupied = 0;
return WriteTapeRecord(buffer, rLength);
}
return 0;
}

62
extracters/rawtap/tapeio.h Normal file
View File

@@ -0,0 +1,62 @@
/* tapeio.h: Tape I/O definitions
Copyright (c) 2017, John Forecast
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JOHN FORECAST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of John Forecast shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from John Forecast.
*/
#include "tap.h"
#include "defs.h"
/*
* Tape open status return codes
*/
#define TIO_SUCCESS 0 /* operation successful */
#define TIO_ERROR -1 /* error record seen */
#define TIO_CORRUPT -2 /* tape format is corrupt */
#define TIO_OPENFAIL -3 /* open operation failed */
#define TIO_CREATEFAIL -4 /* create operation failed */
#define TIO_IOERROR -5 /* I/O error */
/*
* Tape open/close routines.
*/
extern int OpenTapeForRead(char *);
extern int OpenTapeForWrite(char *);
extern int OpenTapeForAppend(char *);
extern void CloseTape(void);
/*
* Tape I/O routines.
*/
uint32 ReadTapeRecord(void *, int);
uint32 ReadTapeRecordLength(void);
int WriteTapeRecord(void *, int);
int WriteTapeMark(int);
/*
* Buffered I/O routines
*/
void initTapeBuffering(int);
int flushTapeBuffering(void);
int writeTapeBuffering(char);