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1.1 root 1: /*
2: * Copyright (c) 1980 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: */
6:
7: #ifndef lint
8: char copyright[] =
9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
10: All rights reserved.\n";
11: #endif not lint
12:
13: #ifndef lint
14: static char sccsid[] = "@(#)arff.c 5.2 (Berkeley) 2/11/86";
15: #endif not lint
16:
17: #include <sys/types.h>
18: #include <sys/stat.h>
19: #include <sys/time.h>
20: #include <signal.h>
21: #include <stdio.h>
22: #include <sys/file.h>
23:
24: #define dbprintf printf
25:
26: struct rt_dat {
27: u_short rt_yr:5; /* year-1972 */
28: u_short rt_dy:5; /* day */
29: u_short rt_mo:5; /* month */
30: };
31:
32: struct rt_axent {
33: char rt_sent[14];
34: };
35:
36: struct rt_ent {
37: char rt_pad; /* unusued */
38: char rt_stat; /* type of entry, or end of seg */
39: u_short rt_name[3]; /* name, 3 words in rad50 form */
40: u_short rt_len; /* length of file */
41: char rt_chan; /* only used in temporary files */
42: char rt_job; /* only used in temporary files */
43: struct rt_dat rt_date; /* creation date */
44: };
45:
46: #define RT_TEMP 1
47: #define RT_NULL 2
48: #define RT_FILE 4
49: #define RT_ESEG 8
50:
51: #define RT_BLOCK 512 /* block size */
52: #define RT_DIRSIZE 31 /* max # of directory segments */
53:
54: struct rt_head {
55: short rt_numseg; /* # of segments available */
56: short rt_nxtseg; /* # of next logical segment */
57: short rt_lstseg; /* highest seg currently open */
58: u_short rt_entpad; /* extra words/directory entry */
59: short rt_stfile; /* block # where files begin */
60: };
61:
62: struct rt_dir {
63: struct rt_head rt_axhead;
64: struct rt_ent rt_ents[72];
65: char _dirpad[6];
66: };
67:
68: #define rd_numseg rt_axhead.rt_numseg
69: #define rd_nxtseg rt_axhead.rt_nxtseg
70: #define rd_lstseg rt_axhead.rt_lstseg
71: #define rd_entpad rt_axhead.rt_entpad
72: #define rd_stfile rt_axhead.rt_stfile
73:
74: typedef struct fldope {
75: int startad;
76: int count;
77: struct rt_ent *rtdope;
78: } FLDOPE;
79:
80: FLDOPE *lookup();
81:
82: #define rt(p) ((struct rt_ent *) p )
83: #define Ain1 03100
84: #define Ain2 050
85: #define flag(c) (flg[('c') - 'a'])
86:
87: char *man = "rxtd";
88: char zeroes[512];
89:
90: extern char *val;
91: extern char table[256];
92: struct rt_dir rt_dir[RT_DIRSIZE] = {
93: { 4, 0, 1, 0, 14 },
94: { { 0, RT_NULL, { 0, 0, 0 }, 486, 0 },
95: { 0, RT_ESEG } }
96: };
97:
98: struct rt_dir rt_nulldir = {
99: { 0, 0, 0, 0, 0 },
100: { { 0, RT_NULL, { 0, 0, 0 }, 0, 0 },
101: { 0, RT_ESEG } }
102: };
103:
104: int rt_entsiz;
105: int rt_nleft;
106: struct rt_ent *rt_curend[RT_DIRSIZE];
107: int floppydes;
108: int dirdirty;
109: char *rt_last;
110: char *defdev = "/dev/floppy";
111:
112: char *opt = "vfbcm";
113:
114: extern long lseek();
115: int rcmd(), dcmd(), xcmd(), tcmd();
116:
117: int (*comfun)();
118: char flg[26];
119: char **namv;
120: int namc;
121:
122: main(argc, argv)
123: char *argv[];
124: {
125: register char *cp;
126:
127: if (argc < 2)
128: usage();
129: for (cp = argv[1]; *cp; cp++)
130: switch (*cp) {
131:
132: case 'm':
133: case 'v':
134: case 'u':
135: case 'w':
136: case 'b':
137: flg[*cp-'a']++;
138: continue;
139: case 'c':
140: flag(c)++;
141: dirdirty++;
142: continue;
143:
144: case 'r':
145: setcom(rcmd);
146: flag(r)++;
147: continue;
148:
149: case 'd':
150: setcom(dcmd);
151: flag(d)++;
152: continue;
153:
154: case 'x':
155: setcom(xcmd);
156: continue;
157:
158: case 't':
159: setcom(tcmd);
160: continue;
161:
162: case 'f':
163: defdev = argv[2];
164: argv++;
165: argc--;
166: continue;
167:
168: default:
169: fprintf(stderr, "arff: bad option `%c'\n", *cp);
170: exit(1);
171: }
172:
173: namv = argv+2;
174: namc = argc-2;
175: if (comfun == 0) {
176: if (flag(u) == 0) {
177: fprintf(stderr, "arff: one of [%s] must be specified\n",
178: man);
179: exit(1);
180: }
181: setcom(rcmd);
182: }
183: (*comfun)();
184: exit(notfound());
185: }
186:
187: setcom(fun)
188: int (*fun)();
189: {
190: if (comfun != 0) {
191: fprintf(stderr, "arff: only one of [%s] allowed\n", man);
192: exit(1);
193: }
194: comfun = fun;
195: }
196:
197: usage()
198: {
199: fprintf(stderr, "usage: ar [%s][%s] archive files ...\n", opt, man);
200: exit(1);
201: }
202:
203: notfound()
204: {
205: register i, n = 0;
206:
207: for (i = 0; i < namc; i++)
208: if (namv[i]) {
209: fprintf(stderr, "arff: %s not found\n", namv[i]);
210: n++;
211: }
212: return (n);
213: }
214:
215: tcmd()
216: {
217: register char *de, *last;
218: FLDOPE *lookup(), *dope;
219: int segnum, nleft;
220: register i;
221: register struct rt_ent *rde;
222:
223: rt_init();
224: if (namc != 0) {
225: for (i = 0; i < namc; i++)
226: if (dope = lookup(namv[i])) {
227: rde = dope->rtdope;
228: (void) rtls(rde);
229: namv[i] = 0;
230: }
231: return;
232: }
233: for (segnum = 0; segnum != -1;
234: segnum = rt_dir[segnum].rd_nxtseg - 1) {
235: last = rt_last + segnum*2*RT_BLOCK;
236: for (de = ((char *)&rt_dir[segnum])+10; de <= last;
237: de += rt_entsiz)
238: if (rtls(rt(de))) {
239: nleft = (last-de)/rt_entsiz;
240: #define ENTRIES "\n%d entries remaining in directory segment %d.\n"
241: printf(ENTRIES, nleft, segnum+1);
242: break;
243: }
244: }
245: }
246:
247: rtls(de)
248: register struct rt_ent *de;
249: {
250: int month, day, year;
251: char name[12], ext[4];
252:
253: switch (de->rt_stat) {
254:
255: case RT_TEMP:
256: if (flag(v))
257: printf("Tempfile:\n");
258: /* fall thru...*/
259:
260: case RT_FILE:
261: if (!flag(v)) {
262: sunrad50(name, de->rt_name);
263: printf("%s\n", name);
264: break;
265: }
266: unrad50(2, de->rt_name, name);
267: unrad50(1, &(de->rt_name[2]), ext);
268: day = de->rt_date.rt_dy;
269: year = de->rt_date.rt_yr+72;
270: month = de->rt_date.rt_mo;
271: printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name,
272: ext, month, day, year, de->rt_len);
273: break;
274:
275: case RT_NULL:
276: printf("%-25.9s %d\n","<UNUSED>", de->rt_len);
277: break;
278:
279: case RT_ESEG:
280: return (1);
281: }
282: return (0);
283: }
284:
285: xcmd()
286: {
287: register char *de, *last;
288: int segnum;
289: char name[12];
290: register int i;
291:
292: rt_init();
293: if (namc != 0) {
294: for (i = 0; i < namc; i++)
295: if (rtx(namv[i]) == 0)
296: namv[i] = 0;
297: return;
298: }
299: for (segnum = 0; segnum != -1;
300: segnum = rt_dir[segnum].rd_nxtseg-1)
301: for (last = rt_last+(segnum*2*RT_BLOCK),
302: de = ((char *)&rt_dir[segnum])+10; de <= last;
303: de += rt_entsiz) {
304: switch (rt(de)->rt_stat) {
305:
306: case RT_ESEG:
307: break; /* exit loop and try next segment */
308:
309: case RT_TEMP:
310: case RT_FILE:
311: sunrad50(name,rt(de)->rt_name);
312: (void) rtx(name);
313:
314: case RT_NULL:
315: default:
316: continue;
317: }
318: break;
319: }
320: }
321:
322: rtx(name)
323: char *name;
324: {
325: register FLDOPE *dope;
326: FLDOPE *lookup();
327: register startad, count;
328: int file;
329: char buff[512];
330:
331:
332: if (dope = lookup(name)) {
333: if (flag(v))
334: (void) rtls(dope->rtdope);
335: else
336: printf("x - %s\n",name);
337:
338: if ((file = creat(name, 0666)) < 0)
339: return (1);
340: count = dope->count;
341: startad = dope->startad;
342: for( ; count > 0 ; count -= 512) {
343: lread(startad, 512, buff);
344: (void) write(file, buff, 512);
345: startad += 512;
346: }
347: (void) close(file);
348: return (0);
349: }
350: return (1);
351: }
352:
353: rt_init()
354: {
355: static initized = 0;
356: register char *de, *last;
357: register i;
358: int dirnum;
359: char *mode;
360: FILE *temp_floppydes;
361:
362: if (initized)
363: return;
364: initized = 1;
365: if (flag(c)) {
366: struct stat sb;
367: char response[128];
368: int tty;
369:
370: if (stat(defdev, &sb) >= 0 && (sb.st_mode & S_IFMT) == S_IFREG)
371: goto ignore;
372: tty = open("/dev/tty", O_RDWR);
373: #define SURE "Are you sure you want to clobber the floppy? "
374: (void) write(tty, SURE, sizeof (SURE));
375: (void) read(tty, response, sizeof (response));
376: if (*response != 'y')
377: exit(50);
378: (void) close(tty);
379: ignore:
380: ;
381: }
382: if (flag(c) || flag(d) || flag(r))
383: mode = "r+";
384: else
385: mode = "r";
386: if ((temp_floppydes = fopen(defdev, mode)) == NULL) {
387: perror(defdev);
388: exit(1);
389: } else
390: floppydes = fileno(temp_floppydes);
391: if (!flag(c)) {
392: lread(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0]);
393: dirnum = rt_dir[0].rd_numseg;
394: /* check for blank/uninitialized diskette */
395: if (dirnum <= 0) {
396: fprintf(stderr,"arff: bad directory format\n");
397: exit(1);
398: }
399: if (dirnum > RT_DIRSIZE) {
400: fprintf(stderr,"arff: too many directory segments\n");
401: exit(1);
402: }
403: for (i = 1; i < dirnum; i++)
404: lread((6+2*i)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[i]);
405: } else {
406: dirnum = 1;
407: if (flag(b)) {
408: rt_dir[0].rd_numseg = 31;
409: rt_dir[0].rd_stfile = 68;
410: rt_dir[0].rt_ents[0].rt_len = 20480 - 68;
411: }
412: }
413:
414: rt_entsiz = 2*rt_dir[0].rd_entpad + 14;
415: /*
416: * We assume that the directory entries have no padding. This
417: * may not be a valid assumption, but there are numerous point
418: * in the code where it assumes it is an rt_ent structure and
419: * not an rt_entsiz sized structure.
420: */
421: rt_entsiz = 14;
422: rt_last = ((char *) &rt_dir[0]) + 10 + 1014/rt_entsiz*rt_entsiz;
423: rt_nleft = 0;
424:
425: for (i = 0; i < dirnum; i++) {
426: last = rt_last + i*2*RT_BLOCK;
427: for (de = ((char *)&rt_dir[i])+10; de <= last; de += rt_entsiz)
428: if (rt(de)->rt_stat == RT_ESEG)
429: break;
430: rt_curend[i] = rt(de);
431: rt_nleft += (last-de)/rt_entsiz;
432: }
433: }
434:
435: static FLDOPE result;
436:
437: FLDOPE *
438: lookup(name)
439: char *name;
440: {
441: unsigned short rname[3];
442: register char *de;
443: int segnum;
444: register index;
445:
446: srad50(name,rname);
447:
448: /*
449: * Search for name, accumulate blocks in index
450: */
451: rt_init();
452: for (segnum = 0; segnum != -1;
453: segnum = rt_dir[segnum].rd_nxtseg - 1)
454: {
455: index = 0;
456: for (de=((char *)&rt_dir[segnum])+10;
457: rt(de)->rt_stat != RT_ESEG; de += rt_entsiz)
458: switch(rt(de)->rt_stat) {
459:
460: case RT_FILE:
461: case RT_TEMP:
462: if(samename(rname,rt(de)->rt_name)) {
463: result.count = rt(de)->rt_len * 512;
464: result.startad = 512*
465: (rt_dir[segnum].rd_stfile + index);
466: result.rtdope = (struct rt_ent *) de;
467: return (&result);
468: }
469:
470: case RT_NULL:
471: index += rt(de)->rt_len;
472: }
473: }
474: return ((FLDOPE *) 0);
475:
476: }
477:
478: static
479: samename(a, b)
480: u_short a[], b[];
481: {
482: return (*a == *b && a[1] == b[1] && a[2] == b[2] );
483: }
484:
485: rad50(cp, out)
486: register u_char *cp;
487: u_short *out;
488: {
489: register index, temp;
490:
491: for (index = 0; *cp; index++) {
492: temp = Ain1 * table[*cp++];
493: if (*cp!=0) {
494: temp += Ain2 * table[*cp++];
495: if(*cp!=0)
496: temp += table[*cp++];
497: }
498: out[index] = temp;
499: }
500: }
501:
502: #define reduce(x, p, q) (x = v[p/q], p %= q);
503:
504: unrad50(count, in, cp)
505: u_short *in;
506: register char *cp;
507: {
508: register i, temp;
509: register u_char *v = (u_char *) val;
510:
511: for (i = 0; i < count; i++) {
512: temp = in[i];
513: reduce(*cp++, temp, Ain1);
514: reduce(*cp++, temp, Ain2);
515: reduce(*cp++, temp, 1);
516: }
517: *cp=0;
518: }
519:
520: srad50(name, rname)
521: register char *name;
522: register u_short *rname;
523: {
524: register index;
525: register char *cp;
526: char file[7], ext[4];
527:
528: /*
529: * Find end of pathname
530: */
531: for (cp = name; *cp++; )
532: ;
533: while (cp >= name && *--cp != '/')
534: ;
535: cp++;
536: /*
537: * Change to rad50
538: */
539: for (index = 0; *cp; ) {
540: file[index++] = *cp++;
541: if (*cp == '.') {
542: cp++;
543: break;
544: }
545: if (index >= 6) {
546: break;
547: }
548: }
549: file[index] = 0;
550: for (index = 0; *cp; ) {
551: ext[index++] = *cp++;
552: if (*cp == '.' || index >= 3)
553: break;
554: }
555: ext[index]=0;
556: rname[0] = rname[1] = rname[2] = 0;
557: rad50((u_char *)file, rname);
558: rad50((u_char *)ext, rname+2);
559: }
560:
561: sunrad50(name, rname)
562: u_short rname[];
563: register char *name;
564: {
565: register char *cp, *cp2;
566: char ext[4];
567:
568: unrad50(2, rname, name);
569: unrad50(1, rname + 2, ext);
570: /*
571: * Jam name and extension together with a dot
572: * deleting white space
573: */
574: for (cp = name; *cp++;)
575: ;
576: --cp;
577: while (*--cp == ' ' && cp >= name)
578: ;
579: *++cp = '.';
580: cp++;
581: for (cp2 = ext; *cp2 != ' ' && cp2 < ext+3;)
582: *cp++ = *cp2++;
583: *cp=0;
584: if (cp[-1] == '.')
585: cp[-1] = 0;
586: }
587:
588: static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789";
589:
590: static char table[256] = {
591: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
592: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
593: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29,
594: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29,
595: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
596: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29,
597: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
598: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29,
599: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
600: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
601: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29,
602: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29,
603: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
604: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29,
605: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
606: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 };
607:
608: /*
609: * Logical to physical adress translation
610: */
611: long
612: trans(logical)
613: register int logical;
614: {
615: register int sector, bytes, track;
616:
617: logical += 26*128;
618: bytes = (logical&127);
619: logical >>= 7;
620: sector = logical%26;
621: if(sector >= 13)
622: sector = sector*2+1;
623: else
624: sector *= 2;
625: sector += 26 + ((track = (logical/26))-1)*6;
626: sector %= 26;
627: return ((((track*26)+sector) << 7) + bytes);
628: }
629:
630: lread(startad, count, obuff)
631: register startad, count;
632: register char *obuff;
633: {
634: long trans();
635: extern floppydes;
636: register int size = flag(m) ? 512 : 128;
637:
638: rt_init();
639: while ((count -= size) >= 0) {
640: (void) lseek(floppydes, flag(m) ?
641: (long)startad : trans(startad), 0);
642: if (read(floppydes, obuff, size) != size)
643: fprintf(stderr, "arff: read error block %d\n",
644: startad/size);
645: obuff += size;
646: startad += size;
647: }
648: }
649:
650: lwrite(startad, count, obuff)
651: register startad, count;
652: register char *obuff;
653: {
654: long trans();
655: extern floppydes;
656: register int size = flag(m) ? 512 : 128;
657:
658: rt_init();
659: while ((count -= size) >= 0) {
660: (void) lseek(floppydes, flag(m) ?
661: (long)startad : trans(startad), 0);
662: if (write(floppydes, obuff, size) != size)
663: fprintf(stderr, "arff: write error block %d\n",
664: startad/size);
665: obuff += size;
666: startad += size;
667: }
668: }
669:
670: rcmd()
671: {
672: register int i;
673:
674: rt_init();
675: if (namc > 0)
676: for (i = 0; i < namc; i++)
677: if (rtr(namv[i]) == 0)
678: namv[i] = 0;
679: }
680:
681: rtr(name)
682: char *name;
683: {
684: register FLDOPE *dope;
685: register struct rt_ent *de;
686: struct stat buf;
687: register struct stat *bufp = &buf;
688: int segnum;
689: char type;
690:
691: if (stat(name, bufp) < 0) {
692: perror(name);
693: return (-1);
694: }
695: type = 'a';
696: if (dope = lookup(name)) {
697: /* can replace, no problem */
698: de = dope->rtdope;
699: if (bufp->st_size <= (de->rt_len * 512)) {
700: printf("r - %s\n",name);
701: toflop(name, bufp->st_size, dope);
702: goto found;
703: } else {
704: de = dope->rtdope;
705: type = 'r';
706: de->rt_stat = RT_NULL;
707: de->rt_name[0] = 0;
708: de->rt_name[1] = 0;
709: de->rt_name[2] = 0;
710: *((u_short *)&(de->rt_date)) = 0;
711: scrunch();
712: }
713: }
714: /*
715: * Search for vacant spot
716: */
717: for (segnum = 0; segnum != -1;
718: segnum = rt_dir[segnum].rd_nxtseg - 1)
719: {
720: for (de = rt_dir[segnum].rt_ents;
721: rt(de)->rt_stat != RT_ESEG; de++)
722: if ((de)->rt_stat == RT_NULL) {
723: if (bufp->st_size <= (de->rt_len*512)) {
724: printf("%c - %s\n", type, name),
725: mkent(de, segnum, bufp,name);
726: goto found;
727: }
728: continue;
729: }
730: }
731: if (type = 'r')
732: printf("%s: no slot for file, file deleted\n",name);
733: else
734: printf("%s: no slot for file\n", name);
735: return (-1);
736:
737: found:
738: if (dope = lookup(name)) {
739: toflop(name, bufp->st_size, dope);
740: return (0);
741: }
742: printf("%s: internal error, added then not found\n", name);
743: return (-1);
744: }
745:
746: mkent(de, segnum, bufp, name)
747: register struct rt_ent *de;
748: int segnum;
749: register struct stat *bufp;
750: char *name;
751: {
752: struct tm *localtime();
753: register struct tm *timp;
754: register struct rt_ent *workp;
755: int count;
756:
757: count = (((bufp->st_size -1) >>9) + 1);
758: /* make sure there is room */
759: if (de->rt_len == count)
760: goto overwrite;
761: if ((char *)rt_curend[segnum] == (rt_last + (segnum*2*RT_BLOCK))) {
762: /* no entries left on segment, trying adding new segment */
763: if (rt_dir[0].rd_numseg > rt_dir[0].rd_lstseg) {
764: short newseg;
765: register int i;
766: int maxseg;
767: short size;
768:
769: newseg = rt_dir[0].rd_lstseg++;
770: rt_dir[newseg] = rt_nulldir;
771: rt_dir[newseg].rd_nxtseg = rt_dir[segnum].rd_nxtseg;
772: rt_dir[segnum].rd_nxtseg = newseg + 1;
773: rt_dir[newseg].rd_entpad = rt_dir[0].rd_entpad;
774: rt_dir[newseg].rd_numseg = rt_dir[0].rd_numseg;
775: size = 0;
776: maxseg = 0;
777: for(i = newseg - 1; i >= 0; i--) {
778: workp = rt_curend[i] - 1;
779: if (workp->rt_stat != RT_NULL)
780: continue;
781: if (workp->rt_len < size)
782: continue;
783: size = workp->rt_len;
784: maxseg = i;
785: }
786: size = 0;
787: for (workp = &rt_dir[maxseg].rt_ents[0];
788: workp->rt_stat != RT_ESEG; workp++) {
789: size += workp->rt_len;
790: }
791: workp--;
792: rt_dir[newseg].rt_ents[0].rt_len = workp->rt_len;
793: rt_dir[newseg].rd_stfile =
794: rt_dir[maxseg].rd_stfile + size - workp->rt_len;
795: workp->rt_len = 0;
796: rt_curend[newseg] = &rt_dir[newseg].rt_ents[1];
797: lwrite(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0]);
798: if (segnum != 0)
799: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK,
800: (char *)&rt_dir[segnum]);
801: lwrite((6+newseg*2)*RT_BLOCK, 2*RT_BLOCK,
802: (char *)&rt_dir[newseg]);
803: segnum = newseg;
804: de = &rt_dir[newseg].rt_ents[0];
805: } else {
806: fprintf(stderr, "All directory segments full on %s\n",
807: defdev);
808: exit(1);
809: }
810: }
811: /* copy directory entries up */
812: for (workp = rt_curend[segnum]+1; workp > de; workp--)
813: *workp = workp[-1];
814: de[1].rt_len -= count;
815: de->rt_len = count;
816: rt_curend[segnum]++;
817: rt_nleft--;
818:
819: overwrite:
820: srad50(name,de->rt_name);
821: timp = localtime(&bufp->st_mtime);
822: de->rt_date.rt_dy = timp->tm_mday;
823: de->rt_date.rt_mo = timp->tm_mon + 1;
824: de->rt_date.rt_yr = timp->tm_year - 72;
825: de->rt_stat = RT_FILE;
826: de->rt_pad = 0;
827: de->rt_chan = 0;
828: de->rt_job = 0;
829: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[segnum]);
830: }
831:
832: toflop(name, ocount, dope)
833: char *name;
834: register FLDOPE *dope;
835: long ocount;
836: {
837: register file, n, startad = dope->startad, count = ocount;
838: char buff[512];
839:
840: file = open(name, 0);
841: if (file < 0) {
842: fprintf(stderr, "arff: couldn't open %s\n",name);
843: exit(1);
844: }
845: for( ; count >= 512; count -= 512) {
846: (void) read(file, buff, 512);
847: lwrite(startad, 512, buff);
848: startad += 512;
849: }
850: (void) read(file, buff, count);
851: (void) close(file);
852: if (count <= 0)
853: return;
854: for (n = count; n < 512; n ++)
855: buff[n] = 0;
856: lwrite(startad, 512, buff);
857: count = (dope->rtdope->rt_len*512-ocount)/512 ;
858: if (count <= 0)
859: return;
860: for ( ; count > 0 ; count--) {
861: startad += 512;
862: lwrite(startad, 512, zeroes);
863: }
864: }
865:
866: dcmd()
867: {
868: register int i;
869:
870: rt_init();
871: if (namc)
872: for (i = 0; i < namc; i++)
873: if (rtk(namv[i])==0)
874: namv[i]=0;
875: if (dirdirty)
876: scrunch();
877: }
878:
879: rtk(name)
880: char *name;
881: {
882: register FLDOPE *dope;
883: register struct rt_ent *de;
884: FLDOPE *lookup();
885:
886: if (dope = lookup(name)) {
887: printf("d - %s\n",name);
888: de = dope->rtdope;
889: de->rt_stat = RT_NULL;
890: de->rt_name[0] = 0;
891: de->rt_name[1] = 0;
892: de->rt_name[2] = 0;
893: *((u_short *)&(de->rt_date)) = 0;
894: dirdirty = 1;
895: return (0);
896: }
897: return (1);
898: }
899:
900: scrunch()
901: {
902: register struct rt_ent *de , *workp;
903: register segnum;
904:
905: for (segnum = 0; segnum != -1;
906: segnum = rt_dir[segnum].rd_nxtseg - 1) {
907: for (de = rt_dir[segnum].rt_ents; de <= rt_curend[segnum]; de++)
908: if (de->rt_stat == RT_NULL &&
909: (de+1)->rt_stat == RT_NULL) {
910: (de+1)->rt_len += de->rt_len;
911: for (workp=de; workp<rt_curend[segnum]; workp++)
912: *workp = workp[1];
913: de--;
914: rt_curend[segnum]--;
915: rt_nleft++;
916: }
917: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK,
918: (char *)&rt_dir[segnum]);
919: }
920: dirdirty = 0;
921: }
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