2.11BSD/src/new/ansi/ansitape.c
#include <sys/types.h>
#include <sys/time.h>
#include <sys/mtio.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <a.out.h>
#include <stdio.h>
#include <ctype.h>
char *malloc();
int wflag;
int xflag;
int tflag;
int cflag;
int vflag;
int dflag;
int totalreadfiles = 0 ;
int totalreadblocks = 0 ;
int totalreadlines = 0 ;
int totalreadchars = 0 ;
int totalwritefiles = 0 ;
int totalwriteblocks = 0 ;
int totalwritelines = 0 ;
int totalwritechars = 0 ;
main(argc,argv)
int argc;
char *argv[];
{
struct tm *tm;
long timetemp;
int year;
int day;
char *tapename;
char *filename;
char *namelist=NULL;
char *device = "/dev/rmt12";
int tape;
int file;
int filenum;
int argnum;
char line[1001];
char vmsname[1000];
char unixname[1000];
FILE *names;
int count;
int tmp;
char blockchar;
int blocksize=2048;
char *key;
timetemp = time(0);
tm = localtime(&timetemp);
year = tm->tm_year;
day = tm->tm_yday;
tapename = malloc(10);
gethostname(tapename,6);
tapename[7]='\0';
/* parse command line */
if (argc < 2)
usage();
argv++;
argc--;
/* loop through first argument (key) */
argc--;
for (key = *argv++; *key; key++)
switch(*key) {
case 'f':
if (*argv == NULL || argc <1) {
fprintf(stderr,
"ansitape: 'f' option requires tape name \n");
usage();
}
device = *argv++;
argc--;
break;
case 'n':
if (*argv == NULL || argc <1) {
fprintf(stderr,
"ansitape: 'n' option requires file name\n");
usage();
}
namelist = *argv++;
argc--;
break;
case 'l':
if (*argv == NULL || argc<1) {
fprintf(stderr,
"ansitape: 'l' option requires label\n");
usage();
}
tapename = *argv++;
argc--;
break;
case 'b':
if (*argv == NULL) {
fprintf(stderr,
"ansitape: 'b' option requires blocksize specifier \n");
usage();
}
tmp = sscanf(*argv++," %d%c ",&blocksize,&blockchar);
argc--;
if(tmp<1) {
fprintf(stderr,"illegal blocksize: blocksize set to 2048\n");
blocksize=2048;
} else if(tmp>1) {
if(blockchar == 'b') blocksize *= 512;
if(blockchar == 'k') blocksize *= 1024;
}
if(blocksize <18) blocksize=18;
if(blocksize >62*1024) blocksize=62*1024;
break;
case 'c':
cflag++;
wflag++;
break;
case 'r':
/*I know, this should be rflag, but I just don't like r for write*/
wflag++;
break;
case 'v':
vflag++;
break;
case 'x':
xflag++;
break;
case 't':
tflag++;
break;
case '-':
break;
default:
fprintf(stderr, "ansitape: %c: unknown option\n", *key);
usage();
}
if (!wflag && !xflag && !tflag)
usage();
tape = open(device,wflag?O_RDWR:O_RDONLY,NULL);
if(tape<0) {
perror(device);
printf(stderr,"tape not accessable - check if drive online and write ring present\n");
exit(1);
}
rewind(tape);
filenum=1;
casefix(tapename);
if(cflag) {
writevol(tapename,tape);
} else {
getvol(tapename,tape);
while(1) {
/* read files */
if( readfile(tape,argc,argv) ) break;
filenum++;
}
backspace(tape);
}
if(wflag) {
if(namelist) {
if(*namelist == '-') {
names = stdin;
} else {
names=fopen(namelist,"r");
if(names == NULL) {
fprintf(stderr,"unable to open namelist file - no files added to tape\n");
}
}
while(1) {
fgets(line,1000,names);
if(feof(names)) break;
count = sscanf(line,"%s %s",unixname,vmsname);
if(count<1) continue; /* blank line */
if(count==1) strcpy(vmsname,unixname);
casefix(vmsname);
if(filecheck(&file,unixname)) continue;
writefile(tape,file,vmsname,tapename,filenum,year,day,blocksize);
filenum++;
close(file);
}
} else {
for(argnum=0;argnum<argc;argnum++) {
filename = argv[argnum];
if(filecheck(&file,filename)) continue;
casefix(filename);
writefile(tape,file,filename,tapename,filenum,year,day,blocksize);
filenum++;
close(file);
}
}
writetm(tape);
writetm(tape);
writetm(tape);
writetm(tape);
}
rewind(tape);
close(tape);
if(vflag && (tflag || xflag)) {
fprintf(stdout," read %d files in %d blocks (%d lines, %d chars)\n",
totalreadfiles,totalreadblocks,totalreadlines,totalreadchars);
}
if(vflag && wflag) {
fprintf(stdout," wrote %d files in %d blocks (%d lines, %d chars)\n",
totalwritefiles,totalwriteblocks,totalwritelines,totalwritechars);
}
}
usage() {
fprintf(stderr,
"ansitape: usage: ansitape -{rxtc}[flnvb] [filename] [label] [filename] [blocksize] [files]\n");
exit();
}
writefile(tape,file,filename,tapename,filenum,year,day,blocksize)
int tape;
int file;
char *filename;
char *tapename;
int filenum;
int year;
int day;
int blocksize;
{
int blocks;
writehdr1(tape,filename,tapename,filenum,year,day);
writehdr2(tape,blocksize);
writehdr3(tape);
writetm(tape);
writedata(tape,file,filename,&blocks,blocksize);
writetm(tape);
writeeof1(tape,filename,tapename,filenum,year,day,blocks);
writeeof2(tape);
writeeof3(tape);
writetm(tape);
totalwritefiles++;
}
writedata(tape,file,filename,blocks,blocksize)
int tape;
int file;
char *filename;
int *blocks;
int blocksize;
{
char *ibuf;
char *ibufstart;
char *obuf;
char *obufstart;
char sizebuf[5];
char *endibuf;
char *endobuf;
int got;
int i;
char *j;
int numchar = 0 ;
int numline = 0 ;
int numblock = 0;
int success;
ibufstart = ibuf = malloc(blocksize<4096?8200:(2*blocksize+10));
obufstart = obuf = malloc(blocksize+10);
endobuf = obuf + blocksize;
endibuf = ibuf;
i=0;
while(1) {
if(ibuf+i>=endibuf) { /* end of input buffer */
strncpy(ibufstart,ibuf,endibuf-ibuf); /* copy leftover to start */
ibuf = ibufstart+(endibuf-ibuf); /* point to end of valid data */
got = read(file,ibuf,blocksize<4096?4096:2*blocksize); /* read in a chunk */
endibuf = ibuf + got;
ibuf = ibufstart; /* point to beginning of data */
if(got == 0) { /* end of input */
if(ibuf==ibufstart){ /* no leftovers */
break; /* done */
} else {
ibuf[i]='\n'; /* fake extra newline */
}
}
}
if(obuf+i+4 > endobuf) { /* end of output buffer */
if(i>blocksize-4) {
printf("record exceeds blocksize - file truncated\n");
break;
}
/* filled up output record - have to fill,output,restart*/
for(j=obuf;j<endobuf;j++) {
*j = '^';
}
success = write(tape,obufstart,blocksize);
if(success != blocksize) {
perror("tape");
fprintf(stderr," hard write error: write aborted\n");
rewind(tape);
exit(1);
}
obuf=obufstart;
numchar -= i;
i=0;
numblock++;
continue;
}
if(ibuf[i] == '\n') { /* end of line */
/*sprintf(sizebuf,"%4.4d",i+4); /* make length string */
/*strncpy(obuf,sizebuf,4); /* put in length field */
obuf[0] = ((i+4)/1000) + '0';
obuf[1] = (((i+4)/100)%10) + '0';
obuf[2] = (((i+4)/10)%10) + '0';
obuf[3] = (((i+4)/1)%10) + '0';
obuf += (4+i); /* size + strlen */
ibuf += (1+i); /* newline + strlen */
i=0;
numline++;
continue; /* back to the top */
}
obuf[i+4]=ibuf[i];
numchar++;
i++;
}
/* exited - write last record and go for lunch */
if(obuf != obufstart) {
for(j=obuf;j<endobuf;j++) {
*j = '^';
}
success = write(tape,obufstart,blocksize);
if(success != blocksize) {
perror("tape");
fprintf(stderr," hard write error: write aborted\n");
rewind(tape);
exit(1);
}
numblock++;
}
free(ibufstart);
free(obufstart);
if(vflag) {
fprintf(stdout,"r - %s: %d lines (%d chars) in %d tape blocks\n",
filename,numline,numchar,numblock);
}
totalwritechars += numchar;
totalwritelines += numline;
totalwriteblocks += numblock;
*blocks = numblock;
}
writetm(tape)
int tape;
{
struct mtop mtop;
mtop.mt_op = MTWEOF;
mtop.mt_count = 1;
ioctl(tape,MTIOCTOP,&mtop);
}
rewind(tape)
int tape;
{
struct mtop mtop;
mtop.mt_op = MTREW;
mtop.mt_count = 1;
ioctl(tape,MTIOCTOP,&mtop);
}
skipfile(tape)
int tape;
{
struct mtop mtop;
mtop.mt_op = MTFSF;
mtop.mt_count = 1;
ioctl(tape,MTIOCTOP,&mtop);
}
backspace(tape)
int tape;
{
struct mtop mtop;
mtop.mt_op = MTBSF;
mtop.mt_count = 1;
ioctl(tape,MTIOCTOP,&mtop);
}
writehdr1(tape,filename,tapename,filenum,year,day)
int tape;
char *filename;
char *tapename;
int filenum;
int year;
int day;
{
char buf[81];
sprintf(buf,
"HDR1%-17.17s%-6.6s0001%4.4d000101 %2.2d%3.3d %2.2d%3.3d 000000DECFILE11A "
,filename,tapename,filenum,year,day,year,day);
write(tape,buf,80);
}
writeeof1(tape,filename,tapename,filenum,year,day,blocks)
int tape;
char *filename;
char *tapename;
int filenum;
int year;
int day;
int blocks;
{
char buf[81];
sprintf(buf,
"EOF1%-17.17s%-6.6s0001%4.4d000101 %2.2d%3.3d %2.2d%3.3d %6.6dDECFILE11A "
,filename,tapename,filenum,year,day,year,day,blocks);
write(tape,buf,80);
}
writehdr2(tape,blocksize)
int tape;
int blocksize;
{
char buf[81];
sprintf(buf, "HDR2D%5.5d%5.5d%35.35s00%28.28s",blocksize,blocksize," "," ");
write(tape,buf,80);
}
writeeof2(tape,blocksize)
int tape;
int blocksize;
{
char buf[81];
sprintf(buf, "EOF2D%5.5d%5.5d%35.35s00%28.28s",blocksize,blocksize," "," ");
write(tape,buf,80);
}
writehdr3(tape)
int tape;
{
char buf[81];
sprintf(buf, "HDR3%76.76s"," ");
write(tape,buf,80);
}
writeeof3(tape)
int tape;
{
char buf[81];
sprintf(buf, "EOF3%76.76s"," ");
write(tape,buf,80);
}
writevol(tapename,tape)
int tape;
char *tapename;
{
char buf[81];
sprintf(buf,"VOL1%-6.6s %26.26sD%47510.10s1%28.28s3",tapename," "," "," ");
write(tape,buf,80);
if(vflag) {
fprintf(stdout," tape labeled %-6.6s\n",tapename);
}
}
getvol(tapename,tape)
int tape;
char *tapename;
{
char buf[81];
read(tape,buf,80);
sscanf(buf,"VOL1%6s",tapename);
if(vflag) {
fprintf(stdout," tape was labeled %-6.6s\n",tapename);
}
}
casefix(string)
register char *string;
{
while(*string) {
if(islower(*string)) {
*string = toupper(*string);
}
string++;
}
}
static
getsize(a)
register char *a;
{
register int i;
int answer;
answer = 0;
for (i = 0; i < 4; ++i) {
answer *= 10;
switch (a[i]) {
default: return -1;
case '0': break;
case '1': answer += 1; break;
case '2': answer += 2; break;
case '3': answer += 3; break;
case '4': answer += 4; break;
case '5': answer += 5; break;
case '6': answer += 6; break;
case '7': answer += 7; break;
case '8': answer += 8; break;
case '9': answer += 9; break;
}
}
return(answer);
}
int
readfile(tape,argc,argv)
int tape;
int argc;
char *argv[];
{
char buf[80];
char mode;
char filename[18];
FILE *file;
int extract;
char *ibuf;
char *ibufstart;
char *endibuf;
int i;
int size;
int numblock = 0 ;
int numchar = 0 ;
int numline = 0 ;
int argnum;
int ok;
int blocksize;
int recordsize;
int writeblock;
if(!(read(tape,buf,80))) return(1); /* no hdr record, so second eof */
sscanf(buf,"HDR1%17s",filename);
read(tape,buf,80);
sscanf(buf,"HDR2%c%5d%5d",&mode,&blocksize,&recordsize);
blocksize = blocksize>recordsize?blocksize:recordsize;
skipfile(tape); /* throw away rest of header(s) - not interesting */
ibufstart=ibuf=malloc(blocksize+10);
endibuf=ibufstart+blocksize;
extract=0;
if(tflag || xflag) {
ok=0;
if(!argc) {
ok=1;
} else for(argnum=0;argnum<argc;argnum++) {
casefix(argv[argnum]);
if(!strcmp(filename,argv[argnum])) {
ok=1;
break;
}
}
if(mode == 'D') {
if(xflag && ok) {
file = fopen(filename,"w");
if(file == NULL) {
perror(filename);
} else {
extract = 1;
}
}
while(read(tape,ibufstart,blocksize)) {
numblock++;
ibuf = ibufstart;
while(strncmp("^^^^",ibuf,4)) {
size = getsize(ibuf);
if(size <= 0) {
(void)fflush(stdout);
(void)fprintf(stderr,"error: bad tape record(s) in file %s - file may be truncated/corrupted.\n", filename);
break;
}
if(extract) {
fwrite(ibuf+4,sizeof(char),size-4,file);
fwrite("\n",1,1,file);
}
ibuf += (size);
numline++;
numchar += (size-4);
if(ibuf > endibuf+1) {
fprintf(stderr,"error: bad tape records(s) - file may be corrupted\n");
break;
}
if(ibuf>endibuf-4) break;
}
}
if(extract) {
fclose(file);
}
} else if (mode == 'F') {
if(xflag && ok) {
file = fopen(filename,"w");
if(file == NULL) {
perror(filename);
} else {
extract = 1;
}
}
while(read(tape,ibufstart,blocksize)) {
numblock++;
ibuf = ibufstart;
while(ibuf+recordsize <= endibuf) {
if(extract) {
fwrite(ibuf,sizeof(char),recordsize,file);
fwrite("\n",1,1,file);
}
ibuf += recordsize;
numline++;
numchar += recordsize;
}
}
if(extract) {
fclose(file);
}
} else {
fprintf(stderr,"unknown record mode (%c) - file %s skipped\n",
mode,filename);
skipfile(tape); /* throw away actual file */
}
} else {
/* not interested in contents of file, so move fast */
skipfile(tape);
}
skipfile(tape); /* throw away eof stuff - not interesting */
totalreadchars += numchar;
totalreadlines += numline;
totalreadblocks += numblock;
totalreadfiles ++;
if(xflag && vflag && ok) {
fprintf(stdout,"x - %s: %d lines (%d chars) in %d tape blocks\n",
filename,numline,numchar,numblock);
} else if(tflag && ok) {
fprintf(stdout,"t - %s: %d lines (%d chars) in %d tape blocks\n",
filename,numline,numchar,numblock);
}
free(ibufstart);
return(0);
}
filecheck(file,name)
int *file;
char *name;
{
struct stat buf;
struct exec sample;
stat(name,&buf);
if ((buf.st_mode & S_IFDIR)==S_IFDIR) {
fprintf(stderr,"%s: directory - skipped\n",name);
return(1);
}
if ((buf.st_mode & S_IFCHR)==S_IFCHR) {
fprintf(stderr,"%s: character device - skipped\n",name);
return(1);
}
if ((buf.st_mode & S_IFBLK)==S_IFBLK) {
fprintf(stderr,"%s: block device - skipped\n",name);
return(1);
}
if ((buf.st_mode & S_IFLNK)==S_IFLNK) {
fprintf(stderr,"%s: symbolic link - skipped\n",name);
return(1);
}
if ((buf.st_mode & S_IFSOCK)==S_IFSOCK) {
fprintf(stderr,"%s: socket - skipped\n",name);
return(1);
}
*file = open(name,O_RDONLY,NULL);
if(*file <0) {
perror(name);
return(1);
}
if(read(*file,&sample,sizeof(struct exec))>= sizeof(struct exec)) {
if(!(N_BADMAG(sample))) {
/* executable */
/* the format requires either fixed blocked records,
* or variable format records with each record remaining
* entirely within a tape block - this limits the
* distance between \n's to 2044 bytes, something
* which is VERY rarely true of executables, so
* we don't even try with them....
*/
close(*file);
fprintf(stderr,"%s: executable - skipped\n",name);
return(1);
}
}
/* either couldn't read sizeof(struct exec) or wasn't executable */
/* so we assume it is a reasonable file until proven otherwise */
lseek(*file,0l,0);
return(0);
}