From 9323c1d3f7a7b207a915a46cf2cbbb3964668157 Mon Sep 17 00:00:00 2001
From: Bill Joy <bill@ucbvax.Berkeley.EDU>
Date: Thu, 2 Oct 1980 01:24:52 -0800
Subject: [PATCH 1/1] date and time created 80/10/01 17:24:52 by bill

SCCS-vsn: old/arff/arff.c 4.1
---
 usr/src/old/arff/arff.c | 752 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 752 insertions(+)
 create mode 100644 usr/src/old/arff/arff.c

diff --git a/usr/src/old/arff/arff.c b/usr/src/old/arff/arff.c
new file mode 100644
index 0000000000..9f1d0d3586
--- /dev/null
+++ b/usr/src/old/arff/arff.c
@@ -0,0 +1,752 @@
+static char *sccsid = "@(#)arff.c	4.1 (Berkeley) %G%";
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <signal.h>
+#include <stdio.h>
+#define dbprintf printf
+struct rt_dat {
+unsigned short	int	rt_yr:5;	/*Year - 1972			*/
+unsigned short	int	rt_dy:5;	/*day				*/
+unsigned short	int	rt_mo:5;	/*month				*/
+};
+struct	rt_axent {
+	char	rt_sent[14];
+};
+
+struct rt_ent {
+	char  rt_pad;			/*unusued		     */
+	char  rt_stat;			/*Type of entry, or end of seg*/
+	unsigned short rt_name[3];	/*Name, 3 words in rad50 form */
+	short rt_len;			/*Length of file	      */
+	char  rt_chan;			/*Only used in temporary files*/
+	char  rt_job;			/*Only used in temporary files*/
+	struct rt_dat rt_date;		/*Creation Date			*/
+};
+#define RT_TEMP 1
+#define RT_NULL 2
+#define RT_FILE 4
+#define RT_ESEG 8
+#define RT_BLOCK 512
+struct rt_head {
+	short	rt_numseg;		/*number of segments available*/
+	short	rt_nxtseg;		/*segment no of next log. seg */
+	short	rt_lstseg;		/*highest seg currenltly open */
+	unsigned short	rt_entpad;	/*extra words/dir. entry      */
+	short	rt_stfile;		/*block no where files begin  */
+};
+struct	rt_dir {
+	struct rt_head	rt_axhead;
+	struct rt_ent	rt_ents[72];
+	char	_dirpad[6];
+};
+extern struct rt_dir	rt_dir;
+extern int		rt_entsiz;
+extern int		floppydes;
+extern char		*rt_last;
+typedef struct fldope {
+	int	startad;
+	int	count;
+struct	rt_ent	*rtdope;
+} FLDOPE;
+FLDOPE *lookup();
+#define rt(p) ((struct rt_ent *) p )
+#define Ain1 03100
+#define Ain2 050
+#define flag(c) (flg[(c) - 'a'])
+
+char	*man	=	{ "rxtd" };
+
+char zeroes[512];
+extern char *val;
+extern char table[256];
+struct rt_dir	rt_dir = {{4,0,1,0,14},{0,RT_NULL,{0,0,0},494,0}, {0,RT_ESEG}};
+int		rt_entsiz;
+int		rt_nleft;
+struct rt_ent	*rt_curend;
+int		floppydes;
+int		dirdirty;
+char		*rt_last;
+char		*defdev = "/dev/floppy";
+
+char	*opt	=	{ "vf" };
+
+int	signum[] = {SIGHUP, SIGINT, SIGQUIT, 0};
+long	lseek();
+int	rcmd();
+int	dcmd();
+int	xcmd();
+int	tcmd();
+int	(*comfun)();
+char	flg[26];
+char	**namv;
+int	namc;
+int	file;
+
+
+main(argc, argv)
+char *argv[];
+{
+	register char *cp;
+
+	/*register i;
+	for(i=0; signum[i]; i++)
+		if(signal(signum[i], SIG_IGN) != SIG_IGN)
+			signal(signum[i], sigdone);*/
+	if(argc < 2)
+		usage();
+	cp = argv[1];
+	for(cp = argv[1]; *cp; cp++)
+	switch(*cp) {
+	case 'm':
+	case 'v':
+	case 'u':
+	case 'w':
+		flg[*cp - 'a']++;
+		continue;
+	case 'c':
+		{
+#define SURE	"Are you sure you want to clobber the floppy?\n"
+			int tty;
+			char response[2];
+			tty = open("/dev/tty",2);
+			write(tty,SURE,sizeof(SURE));
+			read(tty,response,2);
+			if(*response!='y')
+				exit(50);
+			flag('c')++;
+			close(tty);
+		}
+		dirdirty++;
+		continue;
+
+	case 'r':
+		setcom(rcmd);
+		flag('r')++;
+		continue;
+
+	case 'd':
+		setcom(dcmd);
+		flag('d')++;
+		continue;
+
+	case 'x':
+		setcom(xcmd);
+		continue;
+
+	case 't':
+		setcom(tcmd);
+		continue;
+
+	case 'f':
+		defdev = argv[2];
+		argv++;
+		argc--;
+		continue;
+
+
+	default:
+		fprintf(stderr, "arff: bad option `%c'\n", *cp);
+		exit(1);
+	}
+	namv = argv+2;
+	namc = argc-2;
+	if(comfun == 0) {
+		if(flg['u'-'a'] == 0) {
+			fprintf(stderr, "arff: one of [%s] must be specified\n", man);
+			exit(1);
+		}
+		setcom(rcmd);
+	}
+	(*comfun)();
+	exit(notfound());
+}
+
+setcom(fun)
+int (*fun)();
+{
+
+	if(comfun != 0) {
+		fprintf(stderr, "arff: only one of [%s] allowed\n", man);
+		exit(1);
+	}
+	comfun = fun;
+}
+
+
+
+
+
+
+
+
+usage()
+{
+	printf("usage: ar [%s][%s] archive files ...\n", opt, man);
+	exit(1);
+}
+
+
+
+notfound()
+{
+	register i, n;
+
+	n = 0;
+	for(i=0; i<namc; i++)
+		if(namv[i]) {
+			fprintf(stderr, "arff: %s not found\n", namv[i]);
+			n++;
+		}
+	return(n);
+}
+
+
+
+phserr()
+{
+
+	fprintf(stderr, "arff: phase error on %s\n", file);
+}
+
+mesg(c)
+{
+
+	if(flg['v'-'a'])
+		if(c != 'c' || flg['v'-'a'] > 1)
+			printf("%c - %s\n", c, file);
+}
+
+tcmd()
+{
+	register char *de;
+	FLDOPE *lookup(), *dope;
+	int nleft; register i;
+	register struct rt_ent *rde;
+
+	rt_init();
+	if(namc==0)
+		for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) {
+			if(rtls(rt(de))) {
+				nleft = (rt_last - de) / rt_entsiz;
+				printf("\n\n%d entries remaining.\n",nleft);
+				break;
+			}
+		}
+	else
+		for(i = 0; i < namc; i++) {
+			if(dope = lookup(namv[i])) {
+				rde = dope->rtdope;
+				rtls(rde);
+				namv[i] = 0;
+			}
+		}
+}
+rtls(de)
+register struct rt_ent *de;
+{
+	int month,day,year;
+	char name[12], ext[4];
+
+	if(flg['v'-'a'])
+		switch(de->rt_stat) {
+		case RT_TEMP:
+			printf("Tempfile:\n");
+		case RT_FILE:
+			unrad50(2,de->rt_name,name);
+			unrad50(1,&(de->rt_name[2]),ext);
+			day = de->rt_date.rt_dy;
+			year = de->rt_date.rt_yr + 72;
+			month = de->rt_date.rt_mo;
+			printf("%6.6s  %3.3s	%02d/%02d/%02d	%d\n",name,
+				ext,month,day,year,de->rt_len);
+			break;
+
+		case RT_NULL:
+			printf("%-25.9s	%d\n","<UNUSED>",de->rt_len);
+			break;
+
+		case RT_ESEG:
+			return(1);
+		}
+	else {
+		switch(de->rt_stat) {
+		case RT_TEMP:
+		case RT_FILE:
+			sunrad50(name,de->rt_name);
+			printf(name);putchar('\n');
+			break;
+
+		case RT_ESEG:
+			return(1);
+
+		case RT_NULL:
+			;
+		}
+	}
+	return(0);
+}
+xcmd()
+{
+	register char *de;
+	char name[12];
+	register int i;
+
+	rt_init();
+	if(namc==0)
+		for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) {
+			sunrad50(name,rt(de)->rt_name);
+			rtx(name);
+		}
+
+	else
+		for(i = 0; i < namc; i++)
+		if(rtx(namv[i])==0) namv[i] = 0;
+}
+rtx(name)
+char *name;
+{
+	register FLDOPE *dope;
+	FLDOPE *lookup();
+	register startad, count;
+	int file; char buff[512];
+
+
+	if(dope = lookup(name)) {
+		if(flg['v' - 'a'])
+			rtls(dope->rtdope);
+		else
+			printf("x - %s\n",name);
+
+		file = creat(name, 0666);
+		if(file < 0) return(1);
+		count = dope->count;
+		startad = dope->startad;
+		for( ; count > 0 ; count -= 512) {
+			lread(startad,512,buff);
+			write(file,buff,512);
+			startad += 512;
+		}
+		close(file);
+		return(0);
+	}
+	return(1);
+}
+rt_init()
+{
+	static initized = 0;
+	register char *de;
+	int mode;
+
+	if(initized) return;
+	initized = 1;
+	if(flag('c') || flag('d') || flag('r'))
+		mode = 2;
+	else
+		mode = 0;
+	if((floppydes = open(defdev,mode)) < 0)
+		dbprintf("Floppy open failed\n");
+	if(flag('c')==0)
+		lread(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir);
+
+	rt_entsiz = 2*rt_dir.rt_axhead.rt_entpad + 14;
+	rt_entsiz = 14;
+	rt_last = ((char *) &rt_dir) + 10 + 1014/rt_entsiz*rt_entsiz;
+	for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) {
+		if(rt(de)->rt_stat==RT_ESEG) break;
+	}
+	rt_curend = rt(de);
+	rt_nleft = (rt_last - de) / rt_entsiz;
+}
+
+static FLDOPE result;
+FLDOPE *
+lookup(name)
+char * name;
+{
+	unsigned short rname[3];
+	register char *de;
+	register index;
+
+	srad50(name,rname);
+
+	/*
+	 *  Search for name, accumulate blocks in index
+	 */
+	rt_init();
+	index = 0;
+	for(de = ((char *) &rt_dir) + 10; de <= rt_last; de += rt_entsiz) {
+		switch(rt(de)->rt_stat) {
+		case RT_ESEG:
+			return((FLDOPE *) 0);
+		case RT_FILE:
+		case RT_TEMP:
+		if(samename(rname,rt(de)->rt_name))
+			goto found;
+		case RT_NULL:
+			index += rt(de)->rt_len;
+		}
+	}
+	return((FLDOPE *) 0);
+found:	result.count = rt(de)->rt_len * 512;
+	result.startad = 512 * (rt_dir.rt_axhead.rt_stfile + index);
+	result.rtdope = (struct rt_ent *) de;
+	return(&result);
+}
+static
+samename(a,b)
+unsigned short a[3],b[3];
+{
+	return( a[0]==b[0] && a[1]==b[1] && a[2]==b[2] );
+}
+
+
+rad50(cp,out)
+register unsigned char *cp;
+unsigned short *out;
+{
+	register index;
+	register temp;
+
+	for(index = 0;*cp; index++) {
+
+		temp = Ain1 * table[*cp++];
+		if(*cp!=0) {
+			temp += Ain2 * table[*cp++];
+
+			if(*cp!=0) 
+				temp += table[*cp++];
+		}
+
+		out[index] = temp;
+	}
+}
+#define reduce(x,p,q) \
+	(x = v[p/q], p %= q);
+
+unrad50(count,in,cp)
+unsigned short *in;
+register char *cp;
+{
+	register i, temp; register unsigned char *v = (unsigned char *) val;
+	
+	for(i = 0; i < count; i++) {
+		temp = in[i];
+
+		reduce (*cp++,temp,Ain1);
+		reduce (*cp++,temp,Ain2);
+		reduce (*cp++,temp,1);
+	}
+	*cp=0;
+}
+
+srad50(name,rname)
+register char * name;
+register unsigned short *rname;
+{
+	register index; register char *cp;
+	char file[7],ext[4];
+	/*
+	 * Find end of pathname
+	 */
+	for(cp = name; *cp++; );
+	while(cp >= name && *--cp != '/');
+	cp++;
+	/*
+	 * Change to rad50
+	 *
+	 */
+	for(index = 0; *cp; ){
+		file[index++] = *cp++;
+		if(*cp=='.') {
+			cp++;
+			break;
+		}
+		if(index>=6) {
+			break;
+		}
+	}
+	file[index] = 0;
+	for(index = 0; *cp; ){
+		ext[index++] = *cp++;
+		if(*cp=='.' || index>=3) {
+			break;
+		}
+	}
+	ext[index]=0;
+	rname[0] = 0;
+	rname[1] = 0;
+	rname[2] = 0;
+	rad50((unsigned char *)file,rname);
+	rad50((unsigned char *)ext,rname+2);
+}
+sunrad50(name,rname)
+unsigned short rname[3];
+register char *name;
+{
+	register char *cp, *cp2;
+	char ext[4];
+
+	unrad50(2,rname,name);
+	unrad50(1,rname + 2,ext);
+	/* Jam name and extension together with a dot
+	   deleting white space */
+	for(cp = name; *cp++;);--cp;  while(*--cp==' ' && cp>=name);
+	*++cp = '.';cp++;
+	for(cp2=ext; *cp2!=' ' && cp2 < ext + 3;) {
+		*cp++ = *cp2++;
+	}
+	*cp=0;
+	if(cp[-1]=='.') cp[-1] = 0;
+}
+
+static char *oval = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.@0123456789";
+static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789";
+static char table[256] = {
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 
+0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, 
+30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, 
+29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 
+16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, 
+29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 
+16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, 
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 
+0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, 
+30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, 
+29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 
+16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, 
+29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 
+16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 };
+		
+long trans(logical)
+register int logical;
+{
+	/*  Logical to physical adress translation */
+	register int sector, bytes, track;
+
+	logical += 26 * 128;
+	bytes = (logical & 127);
+	logical >>= 7;
+	sector = logical % 26;
+	if(sector >= 13)
+		sector = sector *2 +1;
+	else
+		sector *= 2;
+	sector += 26 + ((track = (logical / 26)) - 1) * 6;
+	sector %= 26;
+	return( (((track *26) + sector) << 7) + bytes);
+}
+lread(startad,count,obuff)
+register startad, count;
+register char * obuff;
+{
+	long trans();
+	extern floppydes;
+	rt_init();
+	if(flg['m'-'a']==0)
+		while( (count -= 128) >= 0) {
+			lseek(floppydes, trans(startad), 0);
+			read(floppydes,obuff,128);
+			obuff += 128;
+			startad += 128;
+		}
+	else
+		while( (count -= 512) >= 0) {
+			lseek(floppydes,(long) (startad), 0);
+			read(floppydes,obuff,512);
+			obuff += 512;
+			startad += 512;
+		}
+}
+lwrite(startad,count,obuff)
+register startad, count;
+register char * obuff;
+{
+	long trans();
+	extern floppydes;
+	rt_init();
+	if(flg['m'-'a']==0)
+		while( (count -= 128) >= 0) {
+			lseek(floppydes, trans(startad), 0);
+			write(floppydes,obuff,128);
+			obuff += 128;
+			startad += 128;
+		}
+	else
+		while( (count -= 512) >= 0) {
+			lseek(floppydes,(long) (startad), 0);
+			write(floppydes,obuff,512);
+			obuff += 512;
+			startad += 512;
+		}
+}
+
+rcmd()
+{
+	register int i;
+
+	rt_init();
+	if(namc>0)
+		for(i = 0; i < namc; i++)
+			if(rtr(namv[i])==0) namv[i]=0;
+	
+	
+}
+
+rtr(name)
+char *name;
+{
+	register FLDOPE *dope; register struct rt_ent *de;
+	struct stat buf; register struct stat *bufp = &buf;
+
+	if(stat(name,bufp)<0) return(1);
+	if(dope = lookup(name)) {
+		/* can replace, no problem */
+		de = dope->rtdope;
+		if(bufp->st_size <= (de->rt_len * 512))
+			printf("r - %s\n",name),
+			toflop(name,bufp->st_size,dope);
+		else {
+			printf("%s will not fit in currently used file on floppy\n",name);
+			return(1);
+		}
+	} else {
+		/* Search for vacant spot */
+		for(de = rt_dir.rt_ents; (char *) de <= rt_last; de++) {
+			switch((de)->rt_stat) {
+			case RT_NULL:
+				if(bufp->st_size <= (de->rt_len * 512)) {
+					printf("a - %s\n",name),
+					mkent(de,bufp,name);
+					goto found;
+				}
+				continue;
+			case RT_ESEG:
+				return(3);
+			}
+		}
+		return(5);
+	}
+found:	if(dope=lookup(name)) {
+		toflop(name,bufp->st_size,dope);
+		return(0);
+	}
+	return(7);
+
+}
+mkent(de,bufp,name)
+register struct rt_ent *de;
+register struct stat *bufp;
+char *name;
+{
+	struct tm *localtime(); register struct tm *timp;
+	register struct rt_ent *workp; int count;
+	
+	count = (((bufp->st_size -1) >>9) + 1);
+						/* Make sure there is room */
+	if(de->rt_len==count)
+		goto overwrite;
+	if(rt_nleft==0) {
+		if(flg['o'-'a'])
+			goto overwrite;
+		fprintf(stderr,"Directory full on  %s\n",defdev);
+		exit(1);
+	}	
+					/* copy directory entries up */
+	for(workp = rt_curend+1; workp > de; workp--)
+		*workp = workp[-1];
+	de[1].rt_len -= count;
+	de->rt_len = count;
+	rt_curend++;
+	rt_nleft--;
+overwrite:
+	srad50(name,de->rt_name);
+	timp = localtime(&bufp->st_mtime);
+	de->rt_date.rt_dy = timp->tm_mday + 1;
+	de->rt_date.rt_mo = timp->tm_mon + 1;
+	de->rt_date.rt_yr = timp->tm_year - 72;
+	de->rt_stat = RT_FILE;
+	de->rt_pad = 0;
+	de->rt_chan = 0;
+	de->rt_job = 0;
+	lwrite(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir);
+
+}
+
+toflop(name,ocount,dope)
+char *name;
+register FLDOPE *dope;
+long ocount;
+{
+	register file, n, startad = dope->startad, count = ocount;
+	char buff[512];
+	
+	file = open(name,0);
+	if(file < 0) {
+		printf("arff: couldn't open %s\n",name);exit(1);}
+	for( ; count >= 512; count -= 512) {
+		read(file,buff,512);
+		lwrite(startad,512,buff);
+		startad += 512;
+	}
+	read(file,buff,count);
+	close(file);
+	if(count <= 0) return;
+	for(n = count; n < 512; n ++) buff[n] = 0;
+	lwrite(startad,512,buff);
+	count = (dope->rtdope->rt_len * 512 - ocount) / 512 ;
+	if(count <= 0) return;
+	for( ; count > 0 ; count--) {
+		startad += 512;
+		lwrite(startad,512,zeroes);
+	}
+
+}
+dcmd()
+{
+	register int i;
+
+	rt_init();
+	if(namc)
+		for(i = 0; i < namc; i++)
+			if(rtk(namv[i])==0) namv[i]=0;
+	if(dirdirty)
+		scrunch();
+	
+}
+rtk(name)
+char *name;
+{
+	register FLDOPE *dope;
+	register struct rt_ent *de;
+	FLDOPE *lookup();
+
+	if(dope = lookup(name)) {
+		printf("d - %s\n",name);
+		de = dope->rtdope;
+		de->rt_stat = RT_NULL;
+		de->rt_name[0] = 0;
+		de->rt_name[1] = 0;
+		de->rt_name[2] = 0;
+		* ((unsigned short *) & (de->rt_date)) = 0;
+		dirdirty = 1;
+		return(0);
+	}
+	return(1);
+}
+scrunch() {
+	register struct rt_ent *de = rt_dir.rt_ents, *workp;
+	for(de = rt_dir.rt_ents; de <= rt_curend; de++) {
+		if(de->rt_stat==RT_NULL && de[1].rt_stat==RT_NULL) {
+			(de+1)->rt_len += de->rt_len;
+			for(workp = de; workp < rt_curend; workp++)
+				*workp = workp[1];
+			de--;
+			rt_curend--;
+			rt_nleft++;
+		}
+	}
+	lwrite(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir);
+}
-- 
2.20.1