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RomWBW/Tools/unix/cpmtools/fsed.cpm.c

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/* #includes */ /*{{{C}}}*//*{{{*/
#include "config.h"
#include <assert.h>
#include <ctype.h>
#if NEED_NCURSES
#if HAVE_NCURSES_NCURSES_H
#include <ncurses/ncurses.h>
#else
#include <ncurses.h>
#endif
#else
#include <curses.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "cpmfs.h"
#include "getopt_.h"
#ifdef USE_DMALLOC
#include <dmalloc.h>
#endif
/*}}}*/
extern char **environ;
static char *mapbuf;
static struct tm *cpmtime(char lday, char hday, char hour, char min) /*{{{*/
{
static struct tm tm;
unsigned long days=(lday&0xff)|((hday&0xff)<<8);
int d;
unsigned int md[12]={31,0,31,30,31,30,31,31,30,31,30,31};
tm.tm_sec=0;
tm.tm_min=((min>>4)&0xf)*10+(min&0xf);
tm.tm_hour=((hour>>4)&0xf)*10+(hour&0xf);
tm.tm_mon=0;
tm.tm_year=1978;
tm.tm_isdst=-1;
if (days) --days;
while (days>=(d=(((tm.tm_year%400)==0 || ((tm.tm_year%4)==0 && (tm.tm_year%100))) ? 366 : 365)))
{
days-=d;
++tm.tm_year;
}
md[1]=((tm.tm_year%400)==0 || ((tm.tm_year%4)==0 && (tm.tm_year%100))) ? 29 : 28;
while (days>=md[tm.tm_mon])
{
days-=md[tm.tm_mon];
++tm.tm_mon;
}
tm.tm_mday=days+1;
tm.tm_year-=1900;
return &tm;
}
/*}}}*/
static void info(struct cpmSuperBlock *sb, const char *format, const char *image) /*{{{*/
{
const char *msg;
clear();
msg="File system characteristics";
move(0,(COLS-strlen(msg))/2); printw(msg);
move(2,0); printw(" Image: %s",image);
move(3,0); printw(" Format: %s",format);
move(4,0); printw(" File system: ");
switch (sb->type)
{
case CPMFS_DR22: printw("CP/M 2.2"); break;
case CPMFS_P2DOS: printw("P2DOS 2.3"); break;
case CPMFS_DR3: printw("CP/M Plus"); break;
}
move(6,0); printw(" Sector length: %d",sb->secLength);
move(7,0); printw(" Number of tracks: %d",sb->tracks);
move(8,0); printw(" Sectors per track: %d",sb->sectrk);
move(10,0);printw(" Block size: %d",sb->blksiz);
move(11,0);printw("Number of directory entries: %d",sb->maxdir);
move(12,0);printw(" Logical sector skew: %d",sb->skew);
move(13,0);printw(" Number of system tracks: %d",sb->boottrk);
move(14,0);printw(" Logical extents per extent: %d",sb->extents);
move(15,0);printw(" Allocatable data blocks: %d",sb->size-(sb->maxdir*32+sb->blksiz-1)/sb->blksiz);
msg="Any key to continue";
move(23,(COLS-strlen(msg))/2); printw(msg);
getch();
}
/*}}}*/
static void map(struct cpmSuperBlock *sb) /*{{{*/
{
const char *msg;
char bmap[18*80];
int secmap,sys,directory;
int pos;
clear();
msg="Data map";
move(0,(COLS-strlen(msg))/2); printw(msg);
secmap=(sb->tracks*sb->sectrk+80*18-1)/(80*18);
memset(bmap,' ',sizeof(bmap));
sys=sb->boottrk*sb->sectrk;
memset(bmap,'S',sys/secmap);
directory=(sb->maxdir*32+sb->secLength-1)/sb->secLength;
memset(bmap+sys/secmap,'D',directory/secmap);
memset(bmap+(sys+directory)/secmap,'.',sb->sectrk*sb->tracks/secmap);
for (pos=0; pos<(sb->maxdir*32+sb->secLength-1)/sb->secLength; ++pos)
{
int entry;
Device_readSector(&sb->dev,sb->boottrk+pos/(sb->sectrk*sb->secLength),pos/sb->secLength,mapbuf);
for (entry=0; entry<sb->secLength/32 && (pos*sb->secLength/32)+entry<sb->maxdir; ++entry)
{
int i;
if (mapbuf[entry*32]>=0 && mapbuf[entry*32]<=(sb->type==CPMFS_P2DOS ? 31 : 15))
{
for (i=0; i<16; ++i)
{
int sector;
sector=mapbuf[entry*32+16+i]&0xff;
if (sb->size>=256) sector|=(((mapbuf[entry*32+16+ ++i]&0xff)<<8));
if (sector>0 && sector<=sb->size)
{
/* not entirely correct without the last extent record count */
sector=sector*(sb->blksiz/sb->secLength)+sb->sectrk*sb->boottrk;
memset(bmap+sector/secmap,'#',sb->blksiz/(sb->secLength*secmap));
}
}
}
}
}
for (pos=0; pos<(int)sizeof(bmap); ++pos)
{
move(2+pos%18,pos/18);
addch(bmap[pos]);
}
move(21,0); printw("S=System area D=Directory area #=File data .=Free");
msg="Any key to continue";
move(23,(COLS-strlen(msg))/2); printw(msg);
getch();
}
/*}}}*/
static void data(struct cpmSuperBlock *sb, const char *buf, unsigned long int pos) /*{{{*/
{
int offset=(pos%sb->secLength)&~0x7f;
unsigned int i;
for (i=0; i<128; ++i)
{
move(4+(i>>4),(i&0x0f)*3+!!(i&0x8)); printw("%02x",buf[i+offset]&0xff);
if (pos%sb->secLength==i+offset) attron(A_REVERSE);
move(4+(i>>4),50+(i&0x0f)); printw("%c",isprint(buf[i+offset]) ? buf[i+offset] : '.');
attroff(A_REVERSE);
}
move(4+((pos&0x7f)>>4),((pos&0x7f)&0x0f)*3+!!((pos&0x7f)&0x8)+1);
}
/*}}}*/
const char cmd[]="fsed.cpm";
int main(int argc, char *argv[]) /*{{{*/
{
/* variables */ /*{{{*/
const char *devopts=(const char*)0;
char *image;
const char *err;
struct cpmSuperBlock drive;
struct cpmInode root;
const char *format;
int c,usage=0;
off_t pos;
chtype ch;
int reload;
char *buf;
/*}}}*/
/* parse options */ /*{{{*/
if (!(format=getenv("CPMTOOLSFMT"))) format=FORMAT;
while ((c=getopt(argc,argv,"T:f:h?"))!=EOF) switch(c)
{
case 'f': format=optarg; break;
case 'T': devopts=optarg; break;
case 'h':
case '?': usage=1; break;
}
if (optind!=(argc-1)) usage=1;
else image=argv[optind++];
if (usage)
{
fprintf(stderr,"Usage: fsed.cpm [-f format] image\n");
exit(1);
}
/*}}}*/
/* open image */ /*{{{*/
if ((err=Device_open(&drive.dev,image,O_RDONLY,devopts)))
{
fprintf(stderr,"%s: cannot open %s (%s)\n",cmd,image,err);
exit(1);
}
if (cpmReadSuper(&drive,&root,format)==-1)
{
fprintf(stderr,"%s: cannot read superblock (%s)\n",cmd,boo);
exit(1);
}
/*}}}*/
/* alloc sector buffers */ /*{{{*/
if ((buf=malloc(drive.secLength))==(char*)0 || (mapbuf=malloc(drive.secLength))==(char*)0)
{
fprintf(stderr,"fsed.cpm: can not allocate sector buffer (%s).\n",strerror(errno));
exit(1);
}
/*}}}*/
/* init curses */ /*{{{*/
initscr();
noecho();
raw();
nonl();
idlok(stdscr,TRUE);
idcok(stdscr,TRUE);
keypad(stdscr,TRUE);
clear();
/*}}}*/
pos=0;
reload=1;
do
{
/* display position and load data */ /*{{{*/
clear();
move(2,0); printw("Byte %8lu (0x%08lx) ",pos,pos);
if (pos<(drive.boottrk*drive.sectrk*drive.secLength))
{
printw("Physical sector %3lu ",((pos/drive.secLength)%drive.sectrk)+1);
}
else
{
printw("Sector %3lu ",((pos/drive.secLength)%drive.sectrk)+1);
printw("(physical %3d) ",drive.skewtab[(pos/drive.secLength)%drive.sectrk]+1);
}
printw("Offset %5lu ",pos%drive.secLength);
printw("Track %5lu",pos/(drive.secLength*drive.sectrk));
move(LINES-3,0); printw("N)ext track P)revious track");
move(LINES-2,0); printw("n)ext record p)revious record f)orward byte b)ackward byte");
move(LINES-1,0); printw("i)nfo q)uit");
if (reload)
{
if (pos<(drive.boottrk*drive.sectrk*drive.secLength))
{
err=Device_readSector(&drive.dev,pos/(drive.secLength*drive.sectrk),(pos/drive.secLength)%drive.sectrk,buf);
}
else
{
err=Device_readSector(&drive.dev,pos/(drive.secLength*drive.sectrk),drive.skewtab[(pos/drive.secLength)%drive.sectrk],buf);
}
if (err)
{
move(4,0); printw("Data can not be read: %s",err);
}
else reload=0;
}
/*}}}*/
if /* position before end of system area */ /*{{{*/
(pos<(drive.boottrk*drive.sectrk*drive.secLength))
{
const char *msg;
msg="System area"; move(0,(COLS-strlen(msg))/2); printw(msg);
move(LINES-3,36); printw("F)orward 16 byte B)ackward 16 byte");
if (!reload) data(&drive,buf,pos);
switch (ch=getch())
{
case 'F': /* next 16 byte */ /*{{{*/
{
if (pos+16<(drive.sectrk*drive.tracks*(off_t)drive.secLength))
{
if (pos/drive.secLength!=(pos+16)/drive.secLength) reload=1;
pos+=16;
}
break;
}
/*}}}*/
case 'B': /* previous 16 byte */ /*{{{*/
{
if (pos>=16)
{
if (pos/drive.secLength!=(pos-16)/drive.secLength) reload=1;
pos-=16;
}
break;
}
/*}}}*/
}
}
/*}}}*/
else if /* position before end of directory area */ /*{{{*/
(pos<(drive.boottrk*drive.sectrk*drive.secLength+drive.maxdir*32))
{
const char *msg;
unsigned long entrystart=(pos&~0x1f)%drive.secLength;
int entry=(pos-(drive.boottrk*drive.sectrk*drive.secLength))>>5;
int offset=pos&0x1f;
msg="Directory area"; move(0,(COLS-strlen(msg))/2); printw(msg);
move(LINES-3,36); printw("F)orward entry B)ackward entry");
move(13,0); printw("Entry %3d: ",entry);
if /* free or used directory entry */ /*{{{*/
((buf[entrystart]>=0 && buf[entrystart]<=(drive.type==CPMFS_P2DOS ? 31 : 15)) || buf[entrystart]==(char)0xe5)
{
int i;
if (buf[entrystart]==(char)0xe5)
{
if (offset==0) attron(A_REVERSE);
printw("Free");
attroff(A_REVERSE);
}
else printw("Directory entry");
move(15,0);
if (buf[entrystart]!=(char)0xe5)
{
printw("User: ");
if (offset==0) attron(A_REVERSE);
printw("%2d",buf[entrystart]);
attroff(A_REVERSE);
printw(" ");
}
printw("Name: ");
for (i=0; i<8; ++i)
{
if (offset==1+i) attron(A_REVERSE);
printw("%c",buf[entrystart+1+i]&0x7f);
attroff(A_REVERSE);
}
printw(" Extension: ");
for (i=0; i<3; ++i)
{
if (offset==9+i) attron(A_REVERSE);
printw("%c",buf[entrystart+9+i]&0x7f);
attroff(A_REVERSE);
}
move(16,0); printw("Extent: %3d",((buf[entrystart+12]&0xff)+((buf[entrystart+14]&0xff)<<5))/drive.extents);
printw(" (low: ");
if (offset==12) attron(A_REVERSE);
printw("%2d",buf[entrystart+12]&0xff);
attroff(A_REVERSE);
printw(", high: ");
if (offset==14) attron(A_REVERSE);
printw("%2d",buf[entrystart+14]&0xff);
attroff(A_REVERSE);
printw(")");
move(17,0); printw("Last extent record count: ");
if (offset==15) attron(A_REVERSE);
printw("%3d",buf[entrystart+15]&0xff);
attroff(A_REVERSE);
move(18,0); printw("Last record byte count: ");
if (offset==13) attron(A_REVERSE);
printw("%3d",buf[entrystart+13]&0xff);
attroff(A_REVERSE);
move(19,0); printw("Data blocks:");
for (i=0; i<16; ++i)
{
unsigned int block=buf[entrystart+16+i]&0xff;
if (drive.size>=256)
{
printw(" ");
if (offset==16+i || offset==16+i+1) attron(A_REVERSE);
printw("%5d",block|(((buf[entrystart+16+ ++i]&0xff)<<8)));
attroff(A_REVERSE);
}
else
{
printw(" ");
if (offset==16+i) attron(A_REVERSE);
printw("%3d",block);
attroff(A_REVERSE);
}
}
}
/*}}}*/
else if /* disc label */ /*{{{*/
(buf[entrystart]==0x20 && drive.type==CPMFS_DR3)
{
int i;
const struct tm *tm;
char s[30];
if (offset==0) attron(A_REVERSE);
printw("Disc label");
attroff(A_REVERSE);
move(15,0);
printw("Label: ");
for (i=0; i<11; ++i)
{
if (i+1==offset) attron(A_REVERSE);
printw("%c",buf[entrystart+1+i]&0x7f);
attroff(A_REVERSE);
}
move(16,0);
printw("Bit 0,7: ");
if (offset==12) attron(A_REVERSE);
printw("Label %s",buf[entrystart+12]&1 ? "set" : "not set");
printw(", password protection %s",buf[entrystart+12]&0x80 ? "set" : "not set");
attroff(A_REVERSE);
move(17,0);
printw("Bit 4,5,6: ");
if (offset==12) attron(A_REVERSE);
printw("Time stamp ");
if (buf[entrystart+12]&0x10) printw("on create, ");
else printw("not on create, ");
if (buf[entrystart+12]&0x20) printw("on modification, ");
else printw("not on modifiction, ");
if (buf[entrystart+12]&0x40) printw("on access");
else printw("not on access");
attroff(A_REVERSE);
move(18,0);
printw("Password: ");
for (i=0; i<8; ++i)
{
char printable;
if (offset==16+(7-i)) attron(A_REVERSE);
printable=(buf[entrystart+16+(7-i)]^buf[entrystart+13])&0x7f;
printw("%c",isprint(printable) ? printable : ' ');
attroff(A_REVERSE);
}
printw(" XOR value: ");
if (offset==13) attron(A_REVERSE);
printw("0x%02x",buf[entrystart+13]&0xff);
attroff(A_REVERSE);
move(19,0);
printw("Created: ");
tm=cpmtime(buf[entrystart+24],buf[entrystart+25],buf[entrystart+26],buf[entrystart+27]);
if (offset==24 || offset==25) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==26) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==27) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
printw(" Updated: ");
tm=cpmtime(buf[entrystart+28],buf[entrystart+29],buf[entrystart+30],buf[entrystart+31]);
if (offset==28 || offset==29) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==30) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==31) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
}
/*}}}*/
else if /* time stamp */ /*{{{*/
(buf[entrystart]==0x21 && (drive.type==CPMFS_P2DOS || drive.type==CPMFS_DR3))
{
const struct tm *tm;
char s[30];
if (offset==0) attron(A_REVERSE);
printw("Time stamps");
attroff(A_REVERSE);
move(15,0);
printw("3rd last extent: Created/Accessed ");
tm=cpmtime(buf[entrystart+1],buf[entrystart+2],buf[entrystart+3],buf[entrystart+4]);
if (offset==1 || offset==2) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==3) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==4) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
printw(" Modified ");
tm=cpmtime(buf[entrystart+5],buf[entrystart+6],buf[entrystart+7],buf[entrystart+8]);
if (offset==5 || offset==6) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==7) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==8) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
move(16,0);
printw("2nd last extent: Created/Accessed ");
tm=cpmtime(buf[entrystart+11],buf[entrystart+12],buf[entrystart+13],buf[entrystart+14]);
if (offset==11 || offset==12) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==13) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==14) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
printw(" Modified ");
tm=cpmtime(buf[entrystart+15],buf[entrystart+16],buf[entrystart+17],buf[entrystart+18]);
if (offset==15 || offset==16) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==17) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==18) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
move(17,0);
printw(" Last extent: Created/Accessed ");
tm=cpmtime(buf[entrystart+21],buf[entrystart+22],buf[entrystart+23],buf[entrystart+24]);
if (offset==21 || offset==22) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==23) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==24) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
printw(" Modified ");
tm=cpmtime(buf[entrystart+25],buf[entrystart+26],buf[entrystart+27],buf[entrystart+28]);
if (offset==25 || offset==26) attron(A_REVERSE);
strftime(s,sizeof(s),"%x",tm);
printw("%s",s);
attroff(A_REVERSE);
printw(" ");
if (offset==27) attron(A_REVERSE);
printw("%2d",tm->tm_hour);
attroff(A_REVERSE);
printw(":");
if (offset==28) attron(A_REVERSE);
printw("%02d",tm->tm_min);
attroff(A_REVERSE);
}
/*}}}*/
else if /* password */ /*{{{*/
(buf[entrystart]>=16 && buf[entrystart]<=31 && drive.type==CPMFS_DR3)
{
int i;
if (offset==0) attron(A_REVERSE);
printw("Password");
attroff(A_REVERSE);
move(15,0);
printw("Name: ");
for (i=0; i<8; ++i)
{
if (offset==1+i) attron(A_REVERSE);
printw("%c",buf[entrystart+1+i]&0x7f);
attroff(A_REVERSE);
}
printw(" Extension: ");
for (i=0; i<3; ++i)
{
if (offset==9+i) attron(A_REVERSE);
printw("%c",buf[entrystart+9+i]&0x7f);
attroff(A_REVERSE);
}
move(16,0);
printw("Password required for: ");
if (offset==12) attron(A_REVERSE);
if (buf[entrystart+12]&0x80) printw("Reading ");
if (buf[entrystart+12]&0x40) printw("Writing ");
if (buf[entrystart+12]&0x20) printw("Deleting ");
attroff(A_REVERSE);
move(17,0);
printw("Password: ");
for (i=0; i<8; ++i)
{
char printable;
if (offset==16+(7-i)) attron(A_REVERSE);
printable=(buf[entrystart+16+(7-i)]^buf[entrystart+13])&0x7f;
printw("%c",isprint(printable) ? printable : ' ');
attroff(A_REVERSE);
}
printw(" XOR value: ");
if (offset==13) attron(A_REVERSE);
printw("0x%02x",buf[entrystart+13]&0xff);
attroff(A_REVERSE);
}
/*}}}*/
else /* bad status */ /*{{{*/
{
printw("Bad status ");
if (offset==0) attron(A_REVERSE);
printw("0x%02x",buf[entrystart]);
attroff(A_REVERSE);
}
/*}}}*/
if (!reload) data(&drive,buf,pos);
switch (ch=getch())
{
case 'F': /* next entry */ /*{{{*/
{
if (pos+32<(drive.sectrk*drive.tracks*(off_t)drive.secLength))
{
if (pos/drive.secLength!=(pos+32)/drive.secLength) reload=1;
pos+=32;
}
break;
}
/*}}}*/
case 'B': /* previous entry */ /*{{{*/
{
if (pos>=32)
{
if (pos/drive.secLength!=(pos-32)/drive.secLength) reload=1;
pos-=32;
}
break;
}
/*}}}*/
}
}
/*}}}*/
else /* data area */ /*{{{*/
{
const char *msg;
msg="Data area"; move(0,(COLS-strlen(msg))/2); printw(msg);
if (!reload) data(&drive,buf,pos);
ch=getch();
}
/*}}}*/
/* process common commands */ /*{{{*/
switch (ch)
{
case 'n': /* next record */ /*{{{*/
{
if (pos+128<(drive.sectrk*drive.tracks*(off_t)drive.secLength))
{
if (pos/drive.secLength!=(pos+128)/drive.secLength) reload=1;
pos+=128;
}
break;
}
/*}}}*/
case 'p': /* previous record */ /*{{{*/
{
if (pos>=128)
{
if (pos/drive.secLength!=(pos-128)/drive.secLength) reload=1;
pos-=128;
}
break;
}
/*}}}*/
case 'N': /* next track */ /*{{{*/
{
if ((pos+drive.sectrk*drive.secLength)<(drive.sectrk*drive.tracks*drive.secLength))
{
pos+=drive.sectrk*drive.secLength;
reload=1;
}
break;
}
/*}}}*/
case 'P': /* previous track */ /*{{{*/
{
if (pos>=drive.sectrk*drive.secLength)
{
pos-=drive.sectrk*drive.secLength;
reload=1;
}
break;
}
/*}}}*/
case 'b': /* byte back */ /*{{{*/
{
if (pos)
{
if (pos/drive.secLength!=(pos-1)/drive.secLength) reload=1;
--pos;
}
break;
}
/*}}}*/
case 'f': /* byte forward */ /*{{{*/
{
if (pos+1<drive.tracks*drive.sectrk*drive.secLength)
{
if (pos/drive.secLength!=(pos+1)/drive.secLength) reload=1;
++pos;
}
break;
}
/*}}}*/
case 'i': info(&drive,format,image); break;
case 'm': map(&drive); break;
}
/*}}}*/
} while (ch!='q');
/* exit curses */ /*{{{*/
move(LINES-1,0);
refresh();
echo();
noraw();
endwin();
/*}}}*/
exit(0);
}
/*}}}*/