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mkdos33fs: properly create catalog tables

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this didn't work at all before
This commit is contained in:
Vince Weaver 2016-12-07 00:24:18 -05:00
parent a868c4957b
commit 98a0c6b2b3
4 changed files with 285 additions and 253 deletions
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2
dos33fs-utils/TODO Normal file
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@ -0,0 +1,2 @@
getopt in dos33fs
BSAVE/BLOAD command in dos33fs, get rid of need for makeb

311
dos33fs-utils/dos33.c
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@ -10,6 +10,8 @@
#include "dos33.h"
static int debug=1;
static unsigned char sector_buffer[BYTES_PER_SECTOR];
static int ones_lookup[16]={
@ -422,89 +424,98 @@ found_one:
return ((found_track<<8)+found_sector);
}
/* creates file apple_filename on the image from local file filename */
/* returns ?? */
#define ERROR_INVALID_FILENAME 1
#define ERROR_FILE_NOT_FOUND 2
#define ERROR_NO_SPACE 3
#define ERROR_IMAGE_NOT_FOUND 4
#define ERROR_CATALOG_FULL 5
/* creates file apple_filename on the image from local file filename */
/* returns ?? */
static int dos33_add_file(int fd,char type,char *filename,
char *apple_filename) {
int free_space,file_size,needed_sectors;
struct stat file_info;
int size_in_sectors=0;
int initial_ts_list=0,ts_list=0,i,data_ts,x,bytes_read=0,old_ts_list;
int catalog_track,catalog_sector,sectors_used=0;
int input_fd;
int result;
char *apple_filename) {
if (apple_filename[0]<64) {
fprintf(stderr,"Error! First char of filename must be ASCII 64 or above!\n");
exit(3);
}
{
int i;
for(i=0;i<strlen(apple_filename);i++) {
if (apple_filename[i]==',') {
fprintf(stderr,"Error! Cannot have , in a filename!\n");
exit(3);
}
}
}
/* FIXME */
/* check type */
/* and sanity check a/b filesize is set properly */
/* Determine size of file to upload */
if (stat(filename,&file_info)<0) {
fprintf(stderr,"Error! %s not found!\n",filename);
exit(3);
}
file_size=(int)file_info.st_size;
/* We need to round up to nearest sector size */
/* Add an extra sector for the T/S list */
/* Then add extra sector for a T/S list every 122*256 bytes (~31k) */
needed_sectors=(file_size/BYTES_PER_SECTOR)+ /* round sectors */
((file_size%BYTES_PER_SECTOR)!=0)+/* tail if needed */
1+/* first T/S list */
(file_size/(122*BYTES_PER_SECTOR)); /* extra t/s lists */
/* Get free space on device */
free_space=dos33_free_space(fd);
int free_space,file_size,needed_sectors;
struct stat file_info;
int size_in_sectors=0;
int initial_ts_list=0,ts_list=0,i,data_ts,x,bytes_read=0,old_ts_list;
int catalog_track,catalog_sector,sectors_used=0;
int input_fd;
int result;
/* Check for free space */
if (needed_sectors*BYTES_PER_SECTOR>free_space) {
fprintf(stderr,"Error! Not enough free space on disk image (need %d have %d)\n",
needed_sectors*BYTES_PER_SECTOR,free_space);
exit(4);
}
if (apple_filename[0]<64) {
fprintf(stderr,"Error! First char of filename "
"must be ASCII 64 or above!\n");
return ERROR_INVALID_FILENAME;
}
/* plus one because we need a sector for the tail */
size_in_sectors=(file_size/BYTES_PER_SECTOR)+
((file_size%BYTES_PER_SECTOR)!=0);
// printf("Need to allocate %i data sectors\n",size_in_sectors);
// printf("Need to allocate %i total sectors\n",needed_sectors);
/* Open the local file */
input_fd=open(filename,O_RDONLY);
if (input_fd<0) {
fprintf(stderr,"Error! could not open %s\n",filename);
return -1;
}
/* Check for comma in filename */
for(i=0;i<strlen(apple_filename);i++) {
if (apple_filename[i]==',') {
fprintf(stderr,"Error! "
"Cannot have , in a filename!\n");
return ERROR_INVALID_FILENAME;
}
}
/* FIXME */
/* check type */
/* and sanity check a/b filesize is set properly */
/* Determine size of file to upload */
if (stat(filename,&file_info)<0) {
fprintf(stderr,"Error! %s not found!\n",filename);
return ERROR_FILE_NOT_FOUND;
}
file_size=(int)file_info.st_size;
if (debug) printf("Filesize: %d\n",file_size);
/* We need to round up to nearest sector size */
/* Add an extra sector for the T/S list */
/* Then add extra sector for a T/S list every 122*256 bytes (~31k) */
needed_sectors=(file_size/BYTES_PER_SECTOR)+ /* round sectors */
((file_size%BYTES_PER_SECTOR)!=0)+/* tail if needed */
1+/* first T/S list */
(file_size/(122*BYTES_PER_SECTOR)); /* extra t/s lists */
/* Get free space on device */
free_space=dos33_free_space(fd);
/* Check for free space */
if (needed_sectors*BYTES_PER_SECTOR>free_space) {
fprintf(stderr,"Error! Not enough free space "
"on disk image (need %d have %d)\n",
needed_sectors*BYTES_PER_SECTOR,free_space);
return ERROR_NO_SPACE;
}
/* plus one because we need a sector for the tail */
size_in_sectors=(file_size/BYTES_PER_SECTOR)+
((file_size%BYTES_PER_SECTOR)!=0);
if (debug) printf("Need to allocate %i data sectors\n",size_in_sectors);
if (debug) printf("Need to allocate %i total sectors\n",needed_sectors);
/* Open the local file */
input_fd=open(filename,O_RDONLY);
if (input_fd<0) {
fprintf(stderr,"Error! could not open %s\n",filename);
return ERROR_IMAGE_NOT_FOUND;
}
i=0;
while (i<size_in_sectors) {
i=0;
while (i<size_in_sectors) {
/* Create new T/S list if necessary */
if (i%TSL_MAX_NUMBER==0) {
old_ts_list=ts_list;
if (i%TSL_MAX_NUMBER==0) {
old_ts_list=ts_list;
/* allocate a sector for the new list */
ts_list=dos33_allocate_sector(fd);
sectors_used++;
if (ts_list<0) return -1;
/* allocate a sector for the new list */
ts_list=dos33_allocate_sector(fd);
sectors_used++;
if (ts_list<0) return -1;
/* clear the t/s sector */
for(x=0;x<BYTES_PER_SECTOR;x++) sector_buffer[x]=0;
lseek(fd,DISK_OFFSET((ts_list>>8)&0xff,ts_list&0xff),SEEK_SET);
@ -578,43 +589,50 @@ static int dos33_add_file(int fd,char type,char *filename,
i++;
}
/* Add new file to Catalog */
/* read in vtoc */
dos33_read_vtoc(fd);
catalog_track=sector_buffer[VTOC_CATALOG_T];
catalog_sector=sector_buffer[VTOC_CATALOG_S];
/* Add new file to Catalog */
/* read in vtoc */
dos33_read_vtoc(fd);
catalog_track=sector_buffer[VTOC_CATALOG_T];
catalog_sector=sector_buffer[VTOC_CATALOG_S];
continue_parsing_catalog:
/* Read in Catalog Sector */
lseek(fd,DISK_OFFSET(catalog_track,catalog_sector),SEEK_SET);
result=read(fd,sector_buffer,BYTES_PER_SECTOR);
/* Find empty directory entry */
i=0;
while(i<7) {
if ((sector_buffer[CATALOG_FILE_LIST+(i*CATALOG_ENTRY_SIZE)]==0xff) ||
(sector_buffer[CATALOG_FILE_LIST+(i*CATALOG_ENTRY_SIZE)]==0x00))
goto got_a_dentry;
i++;
}
if ((catalog_track=0x11) && (catalog_sector==1)) {
/* in theory can only have 105 files */
/* if full, we have no recourse! */
/* can we allocate new catalog sectors and point to them?? */
fprintf(stderr,"Error! No more room for files!\n");
return -1;
}
lseek(fd,DISK_OFFSET(catalog_track,catalog_sector),SEEK_SET);
result=read(fd,sector_buffer,BYTES_PER_SECTOR);
catalog_track=sector_buffer[CATALOG_NEXT_T];
catalog_sector=sector_buffer[CATALOG_NEXT_S];
/* Find empty directory entry */
i=0;
while(i<7) {
/* for undelete purposes might want to skip 0xff */
/* (deleted) files first and only use if no room */
if ((sector_buffer[CATALOG_FILE_LIST+
(i*CATALOG_ENTRY_SIZE)]==0xff) ||
(sector_buffer[CATALOG_FILE_LIST+
(i*CATALOG_ENTRY_SIZE)]==0x00)) {
goto got_a_dentry;
}
i++;
}
if ((catalog_track=0x11) && (catalog_sector==1)) {
/* in theory can only have 105 files */
/* if full, we have no recourse! */
/* can we allocate new catalog sectors */
/* and point to them?? */
fprintf(stderr,"Error! No more room for files!\n");
return ERROR_CATALOG_FULL;
}
catalog_track=sector_buffer[CATALOG_NEXT_T];
catalog_sector=sector_buffer[CATALOG_NEXT_S];
goto continue_parsing_catalog;
goto continue_parsing_catalog;
got_a_dentry:
// printf("Adding file at entry %i of catalog 0x%x:0x%x\n",
// i,catalog_track,catalog_sector);
@ -1311,14 +1329,14 @@ int main(int argc, char **argv) {
}
dos33_load_file(dos_fd,catalog_entry,output_filename);
break;
case COMMAND_CATALOG:
case COMMAND_CATALOG:
/* get first catalog */
catalog_entry=dos33_get_catalog_ts(dos_fd);
catalog_entry=dos33_get_catalog_ts(dos_fd);
printf("\nDISK VOLUME %i\n\n",sector_buffer[VTOC_DISK_VOLUME]);
while(catalog_entry>0) {
catalog_entry=dos33_find_next_file(dos_fd,catalog_entry);
@ -1330,35 +1348,36 @@ int main(int argc, char **argv) {
}
printf("\n");
break;
case COMMAND_SAVE:
/* argv3 == type == A,B,T,I,N,L etc */
/* argv4 == name of local file */
/* argv5 == optional name of file on disk image */
if (argc<5+extra_ops) {
fprintf(stderr,"Error! Need type and file_name\n");
fprintf(stderr,"%s %s SAVE type file_name apple_filename\n",
argv[0],image);
goto exit_and_close;
}
type=argv[firstarg+2][0];
if (argc==6+extra_ops) {
if (strlen(argv[firstarg+4])>30) {
fprintf(stderr,
"Warning! Truncating filename to 30 chars!\n");
}
strncpy(apple_filename,argv[firstarg+4],30);
apple_filename[30]=0;
}
else {
/* If no filename specified for apple name */
/* Then use the input name. Note, we strip */
/* everything up to the last slash so useless */
/* path info isn't used */
case COMMAND_SAVE:
/* argv3 == type == A,B,T,I,N,L etc */
/* argv4 == name of local file */
/* argv5 == optional name of file on disk image */
if (argc<5+extra_ops) {
fprintf(stderr,"Error! Need type and file_name\n");
fprintf(stderr,"%s %s SAVE type "
"file_name apple_filename\n",
argv[0],image);
goto exit_and_close;
}
type=argv[firstarg+2][0];
if (argc==6+extra_ops) {
if (strlen(argv[firstarg+4])>30) {
fprintf(stderr,
"Warning! Truncating filename "
"to 30 chars!\n");
}
strncpy(apple_filename,argv[firstarg+4],30);
apple_filename[30]=0;
}
else {
/* If no filename specified for apple name */
/* Then use the input name. Note, we strip */
/* everything up to the last slash so useless */
/* path info isn't used */
{
char *temp;
temp=argv[firstarg+3]+(strlen(argv[firstarg+3])-1);
@ -1398,9 +1417,9 @@ int main(int argc, char **argv) {
dos33_delete_file(dos_fd,catalog_entry);
}
dos33_add_file(dos_fd,type,argv[firstarg+3],apple_filename);
break;
dos33_add_file(dos_fd,type,argv[firstarg+3],apple_filename);
break;
case COMMAND_DELETE:
if (argc+extra_ops<4) {

223
dos33fs-utils/mkdos33fs.c
View File

@ -7,45 +7,45 @@
#include "dos33.h"
void usage(char *binary,int help) {
printf("\n%s - version %s\n",binary,VERSION);
printf("\tby Vince Weaver <vince@deater.net>\n");
printf("\thttp://www.deater.net/weave/vmwprod/apple/\n\n");
if (help) {
printf("Usage:\t%s [-t track] [-s sector] [-b size] "
"[-d filename] [-f filename] device_name\n\n",binary);
printf("\t-t tracks : number of tracks in filesystem\n");
printf("\t-s sectors : number of sectors in filesystem\n");
printf("\t-b blocksize : size of sector, in bytes\n");
printf("\t-d filename : file to copy first 3 tracks over from\n");
printf("\t-f filename : name of BASIC file to autoboot. Default is HELLO\n");
printf("\n\n");
}
exit(0);
return;
static void usage(char *binary,int help) {
printf("\n%s - version %s\n",binary,VERSION);
printf("\tby Vince Weaver <vince@deater.net>\n");
printf("\thttp://www.deater.net/weave/vmwprod/apple/\n\n");
if (help) {
printf("Usage:\t%s [-t track] [-s sector] [-b size] "
"[-d filename] [-f filename] device_name\n\n",binary);
printf("\t-t tracks : number of tracks in filesystem\n");
printf("\t-s sectors : number of sectors in filesystem\n");
printf("\t-b blocksize : size of sector, in bytes\n");
printf("\t-d filename : file to copy first 3 tracks over from\n");
printf("\t-f filename : name of BASIC file to autoboot. Default is HELLO\n");
printf("\n\n");
}
exit(0);
return;
}
int main(int argc, char **argv) {
int num_tracks=35,num_sectors=16,block_size=256;
int fd,dos_fd;
char device[BUFSIZ],dos_src[BUFSIZ];
char *buffer,*endptr;
int i,c,copy_dos=0;
int result;
char boot_filename[30]="HELLO ";
/* Parse Command Line Arguments */
int num_tracks=35,num_sectors=16,block_size=256;
int fd,dos_fd;
char device[BUFSIZ],dos_src[BUFSIZ];
char *buffer,*endptr;
int i,c,copy_dos=0;
int result;
char boot_filename[30]="HELLO ";
/* Parse Command Line Arguments */
while ((c = getopt (argc, argv,"t:s:b:d:f:hv"))!=-1) {
switch (c) {
case 't': num_tracks=strtol(optarg,&endptr,10);
if ( endptr == optarg ) usage(argv[0], 1);
break;
case 's': num_sectors=strtol(optarg,&endptr,10);
if ( endptr == optarg ) usage(argv[0], 1);
break;
@ -56,7 +56,7 @@ int main(int argc, char **argv) {
case 'd': copy_dos=1;
strncpy(dos_src,optarg,BUFSIZ);
break;
case 'f':
if (strlen(optarg)>30) {
fprintf(stderr,"Auto boot filename too long!\n");
@ -69,90 +69,89 @@ int main(int argc, char **argv) {
case 'v': usage(argv[0],0);
case 'h': usage(argv[0],1);
}
}
if (optind==argc) {
printf("Error! Must include device name\n\n");
goto end_of_program;
}
strncpy(device,argv[optind],BUFSIZ);
/* Sanity check values */
/* s 2->32 (limited by 4-byte bitfields) */
if ((num_sectors<2) || (num_sectors>32)) {
printf("Number of sectors must be >2 and <=32\n\n");
goto end_of_program;
}
/* t 17->(block_size-0x38)/2 */
if ((num_tracks<18) || (num_tracks>(block_size-0x38)/2)) {
printf("Number of tracks must be >18 and <=%i (block_size-0x38)/2\n\n",
(block_size-0x38)/2);
goto end_of_program;
}
/* sector_size 256->65536 (or 512 basedon one bye t/s size field?) */
if ((block_size<256)||(block_size>65536)) {
printf("Block size must be >=256 and <65536\n\n");
goto end_of_program;
}
buffer=calloc(1,sizeof(char)*block_size);
if (optind==argc) {
printf("Error! Must include device name\n\n");
goto end_of_program;
}
strncpy(device,argv[optind],BUFSIZ);
/* Sanity check values */
/* s 2->32 (limited by 4-byte bitfields) */
if ((num_sectors<2) || (num_sectors>32)) {
printf("Number of sectors must be >2 and <=32\n\n");
goto end_of_program;
}
/* t 17->(block_size-0x38)/2 */
if ((num_tracks<18) || (num_tracks>(block_size-0x38)/2)) {
printf("Number of tracks must be >18 and <=%i (block_size-0x38)/2\n\n",
(block_size-0x38)/2);
goto end_of_program;
}
/* sector_size 256->65536 (or 512 basedon one bye t/s size field?) */
if ((block_size<256)||(block_size>65536)) {
printf("Block size must be >=256 and <65536\n\n");
goto end_of_program;
}
buffer=calloc(1,sizeof(char)*block_size);
/* Open device */
fd=open(device,O_RDWR|O_CREAT,0666);
if (fd<0) {
fprintf(stderr,"Error opening %s\n",device);
goto end_of_program;
}
/* zero out file */
for(i=0;i<num_tracks*num_sectors;i++) {
result=write(fd,buffer,block_size);
}
fd=open(device,O_RDWR|O_CREAT,0666);
if (fd<0) {
fprintf(stderr,"Error opening %s\n",device);
goto end_of_program;
}
/* Copy over OS from elsewhere, if desired */
if (copy_dos) {
dos_fd=open(dos_src,O_RDONLY);
if (fd<0) {
fprintf(stderr,"Error opening %s\n",dos_src);
goto end_of_program;
}
lseek(fd,0,SEEK_SET);
/* copy first 3 sectors */
for(i=0;i<3*(num_sectors);i++) {
result=read(dos_fd,buffer,block_size);
result=write(fd,buffer,block_size);
}
close(dos_fd);
/* Set boot filename */
/* Track 1 sector 9 */
lseek(fd,((1*num_sectors)+9)*block_size,SEEK_SET);
result=read(fd,buffer,block_size);
/* filename begins at offset 75 */
for(i=0;i<30;i++) {
buffer[0x75+i]=boot_filename[i]|0x80;
}
lseek(fd,((1*num_sectors)+9)*block_size,SEEK_SET);
result=write(fd,buffer,block_size);
}
/* zero out file */
for(i=0;i<num_tracks*num_sectors;i++) {
result=write(fd,buffer,block_size);
}
/* clear buffer */
for(i=0;i<block_size;i++) buffer[i]=0;
/* Copy over OS from elsewhere, if desired */
if (copy_dos) {
dos_fd=open(dos_src,O_RDONLY);
if (fd<0) {
fprintf(stderr,"Error opening %s\n",dos_src);
goto end_of_program;
}
lseek(fd,0,SEEK_SET);
/* copy first 3 sectors */
for(i=0;i<3*(num_sectors);i++) {
result=read(dos_fd,buffer,block_size);
result=write(fd,buffer,block_size);
}
close(dos_fd);
/* Set boot filename */
/* Track 1 sector 9 */
lseek(fd,((1*num_sectors)+9)*block_size,SEEK_SET);
result=read(fd,buffer,block_size);
/* filename begins at offset 75 */
for(i=0;i<30;i++) {
buffer[0x75+i]=boot_filename[i]|0x80;
}
lseek(fd,((1*num_sectors)+9)*block_size,SEEK_SET);
result=write(fd,buffer,block_size);
}
/* clear buffer */
for(i=0;i<block_size;i++) buffer[i]=0;
/* Create VTOC */
buffer[VTOC_DOS_RELEASE]=0x3; /* fake dos 3.3 */
buffer[VTOC_CATALOG_T]=0x11;
buffer[VTOC_CATALOG_S]=0xf; /* 1st Catalog typically at 0x11/0xf */
buffer[VTOC_CATALOG_S]=num_sectors-1;
/* 1st Catalog typically at 0x11/0xf */
buffer[VTOC_DISK_VOLUME]=254; /* typical volume 254 */
buffer[VTOC_MAX_TS_PAIRS]=((block_size-0xc)/2)&0xff;
/* Number of T/S pairs fitting */
@ -205,10 +204,22 @@ int main(int argc, char **argv) {
/* Write out VTOC to disk */
lseek(fd,((17*num_sectors)+0)*block_size,SEEK_SET);
result=write(fd,buffer,block_size);
result=write(fd,buffer,block_size);
if (result<0) fprintf(stderr,"Error writing!\n");
/* clear buffer */
for(i=0;i<block_size;i++) buffer[i]=0;
/* Set catalog next pointers */
for(i=(num_sectors-1);i>1;i--) {
buffer[1]=0x11;
buffer[2]=i-1;
lseek(fd,((17*num_sectors)+i)*block_size,SEEK_SET);
result=write(fd,buffer,block_size);
if (result<0) fprintf(stderr,"Error writing!\n");
}
close(fd);
end_of_program:

2
dos33fs-utils/version.h
View File

@ -1 +1 @@
#define VERSION "0.0.11"
#define VERSION "0.0.12"