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1.1 ! root 1: #ifndef lint ! 2: static char sccsid[] = "@(#)arff.c 4.16 (Berkeley) 83/07/10"; ! 3: #endif ! 4: ! 5: #include <sys/types.h> ! 6: #include <sys/stat.h> ! 7: #include <sys/time.h> ! 8: #include <signal.h> ! 9: #include <stdio.h> ! 10: #include <sys/file.h> ! 11: ! 12: #define dbprintf printf ! 13: ! 14: struct rt_dat { ! 15: u_short rt_yr:5; /* year-1972 */ ! 16: u_short rt_dy:5; /* day */ ! 17: u_short rt_mo:5; /* month */ ! 18: }; ! 19: ! 20: struct rt_axent { ! 21: char rt_sent[14]; ! 22: }; ! 23: ! 24: struct rt_ent { ! 25: char rt_pad; /* unusued */ ! 26: char rt_stat; /* type of entry, or end of seg */ ! 27: u_short rt_name[3]; /* name, 3 words in rad50 form */ ! 28: u_short rt_len; /* length of file */ ! 29: char rt_chan; /* only used in temporary files */ ! 30: char rt_job; /* only used in temporary files */ ! 31: struct rt_dat rt_date; /* creation date */ ! 32: }; ! 33: ! 34: #define RT_TEMP 1 ! 35: #define RT_NULL 2 ! 36: #define RT_FILE 4 ! 37: #define RT_ESEG 8 ! 38: ! 39: #define RT_BLOCK 512 /* block size */ ! 40: #define RT_DIRSIZE 31 /* max # of directory segments */ ! 41: ! 42: struct rt_head { ! 43: short rt_numseg; /* # of segments available */ ! 44: short rt_nxtseg; /* # of next logical segment */ ! 45: short rt_lstseg; /* highest seg currently open */ ! 46: u_short rt_entpad; /* extra words/directory entry */ ! 47: short rt_stfile; /* block # where files begin */ ! 48: }; ! 49: ! 50: struct rt_dir { ! 51: struct rt_head rt_axhead; ! 52: struct rt_ent rt_ents[72]; ! 53: char _dirpad[6]; ! 54: }; ! 55: ! 56: typedef struct fldope { ! 57: int startad; ! 58: int count; ! 59: struct rt_ent *rtdope; ! 60: } FLDOPE; ! 61: ! 62: FLDOPE *lookup(); ! 63: ! 64: #define rt(p) ((struct rt_ent *) p ) ! 65: #define Ain1 03100 ! 66: #define Ain2 050 ! 67: #define flag(c) (flg[('c') - 'a']) ! 68: ! 69: char *man = "rxtd"; ! 70: char zeroes[512]; ! 71: ! 72: extern char *val; ! 73: extern char table[256]; ! 74: struct rt_dir rt_dir[RT_DIRSIZE] = { ! 75: { 4, 0, 1, 0, 14 }, ! 76: { { 0, RT_NULL, { 0, 0, 0 }, 494, 0 }, ! 77: { 0, RT_ESEG } } ! 78: }; ! 79: ! 80: int rt_entsiz; ! 81: int rt_nleft; ! 82: struct rt_ent *rt_curend[RT_DIRSIZE]; ! 83: int floppydes; ! 84: int dirdirty; ! 85: char *rt_last; ! 86: char *defdev = "/dev/floppy"; ! 87: ! 88: char *opt = "vf"; ! 89: ! 90: int signum[] = {SIGHUP, SIGINT, SIGQUIT, 0}; ! 91: extern long lseek(); ! 92: int rcmd(), dcmd(), xcmd(), tcmd(); ! 93: ! 94: int (*comfun)(); ! 95: char flg[26]; ! 96: char **namv; ! 97: int namc; ! 98: int file; ! 99: ! 100: main(argc, argv) ! 101: char *argv[]; ! 102: { ! 103: register char *cp; ! 104: ! 105: if (argc < 2) ! 106: usage(); ! 107: for (cp = argv[1]; *cp; cp++) ! 108: switch (*cp) { ! 109: ! 110: case 'm': ! 111: case 'v': ! 112: case 'u': ! 113: case 'w': ! 114: flg[*cp-'a']++; ! 115: continue; ! 116: case 'c': ! 117: flag(c)++; ! 118: dirdirty++; ! 119: continue; ! 120: ! 121: case 'r': ! 122: setcom(rcmd); ! 123: flag(r)++; ! 124: continue; ! 125: ! 126: case 'd': ! 127: setcom(dcmd); ! 128: flag(d)++; ! 129: continue; ! 130: ! 131: case 'x': ! 132: setcom(xcmd); ! 133: continue; ! 134: ! 135: case 't': ! 136: setcom(tcmd); ! 137: continue; ! 138: ! 139: case 'f': ! 140: defdev = argv[2]; ! 141: argv++; ! 142: argc--; ! 143: continue; ! 144: ! 145: default: ! 146: fprintf(stderr, "arff: bad option `%c'\n", *cp); ! 147: exit(1); ! 148: } ! 149: ! 150: namv = argv+2; ! 151: namc = argc-2; ! 152: if (comfun == 0) { ! 153: if (flag(u) == 0) { ! 154: fprintf(stderr, "arff: one of [%s] must be specified\n", ! 155: man); ! 156: exit(1); ! 157: } ! 158: setcom(rcmd); ! 159: } ! 160: (*comfun)(); ! 161: exit(notfound()); ! 162: } ! 163: ! 164: setcom(fun) ! 165: int (*fun)(); ! 166: { ! 167: if (comfun != 0) { ! 168: fprintf(stderr, "arff: only one of [%s] allowed\n", man); ! 169: exit(1); ! 170: } ! 171: comfun = fun; ! 172: } ! 173: ! 174: usage() ! 175: { ! 176: fprintf(stderr, "usage: ar [%s][%s] archive files ...\n", opt, man); ! 177: exit(1); ! 178: } ! 179: ! 180: notfound() ! 181: { ! 182: register i, n = 0; ! 183: ! 184: for (i = 0; i < namc; i++) ! 185: if (namv[i]) { ! 186: fprintf(stderr, "arff: %s not found\n", namv[i]); ! 187: n++; ! 188: } ! 189: return (n); ! 190: } ! 191: ! 192: mesg(c) ! 193: { ! 194: if (flag(v)) ! 195: if (c != 'c' || flag(v) > 1) ! 196: printf("%c - %s\n", c, file); ! 197: } ! 198: ! 199: tcmd() ! 200: { ! 201: register char *de, *last; ! 202: FLDOPE *lookup(), *dope; ! 203: int segnum, nleft; ! 204: register i; ! 205: register struct rt_ent *rde; ! 206: ! 207: rt_init(); ! 208: if (namc != 0) { ! 209: for (i = 0; i < namc; i++) ! 210: if (dope = lookup(namv[i])) { ! 211: rde = dope->rtdope; ! 212: rtls(rde); ! 213: namv[i] = 0; ! 214: } ! 215: return; ! 216: } ! 217: for (segnum = 0; segnum != -1; ! 218: segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { ! 219: last = rt_last + segnum*2*RT_BLOCK; ! 220: for (de = ((char *)&rt_dir[segnum])+10; de <= last; ! 221: de += rt_entsiz) ! 222: if (rtls(rt(de))) { ! 223: nleft = (last-de)/rt_entsiz; ! 224: #define ENTRIES "\n%d entries remaining in directory segment %d.\n" ! 225: printf(ENTRIES, nleft, segnum+1); ! 226: break; ! 227: } ! 228: } ! 229: } ! 230: ! 231: rtls(de) ! 232: register struct rt_ent *de; ! 233: { ! 234: int month, day, year; ! 235: char name[12], ext[4]; ! 236: ! 237: switch (de->rt_stat) { ! 238: ! 239: case RT_TEMP: ! 240: if (flag(v)) ! 241: printf("Tempfile:\n"); ! 242: /* fall thru...*/ ! 243: ! 244: case RT_FILE: ! 245: if (!flag(v)) { ! 246: sunrad50(name, de->rt_name); ! 247: printf("%s\n", name); ! 248: break; ! 249: } ! 250: unrad50(2, de->rt_name, name); ! 251: unrad50(1, &(de->rt_name[2]), ext); ! 252: day = de->rt_date.rt_dy; ! 253: year = de->rt_date.rt_yr+72; ! 254: month = de->rt_date.rt_mo; ! 255: printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name, ! 256: ext, month, day, year, de->rt_len); ! 257: break; ! 258: ! 259: case RT_NULL: ! 260: printf("%-25.9s %d\n","<UNUSED>", de->rt_len); ! 261: break; ! 262: ! 263: case RT_ESEG: ! 264: return (1); ! 265: } ! 266: return (0); ! 267: } ! 268: ! 269: xcmd() ! 270: { ! 271: register char *de, *last; ! 272: int segnum; ! 273: char name[12]; ! 274: register int i; ! 275: ! 276: rt_init(); ! 277: if (namc != 0) { ! 278: for (i = 0; i < namc; i++) ! 279: if (rtx(namv[i]) == 0) ! 280: namv[i] = 0; ! 281: return; ! 282: } ! 283: for (segnum = 0; segnum != -1; ! 284: segnum = rt_dir[segnum].rt_axhead.rt_nxtseg-1) ! 285: for (last = rt_last+(segnum*2*RT_BLOCK), ! 286: de = ((char *)&rt_dir[segnum])+10; de <= last; ! 287: de += rt_entsiz) ! 288: switch (rt(de)->rt_stat) { ! 289: ! 290: case RT_ESEG: ! 291: return; ! 292: ! 293: case RT_TEMP: ! 294: case RT_FILE: ! 295: sunrad50(name,rt(de)->rt_name); ! 296: rtx(name); ! 297: ! 298: case RT_NULL: ! 299: break; ! 300: } ! 301: } ! 302: ! 303: rtx(name) ! 304: char *name; ! 305: { ! 306: register FLDOPE *dope; ! 307: FLDOPE *lookup(); ! 308: register startad, count; ! 309: int file; ! 310: char buff[512]; ! 311: ! 312: ! 313: if (dope = lookup(name)) { ! 314: if (flag(v)) ! 315: rtls(dope->rtdope); ! 316: else ! 317: printf("x - %s\n",name); ! 318: ! 319: if ((file = creat(name, 0666)) < 0) ! 320: return (1); ! 321: count = dope->count; ! 322: startad = dope->startad; ! 323: for( ; count > 0 ; count -= 512) { ! 324: lread(startad, 512, buff); ! 325: write(file, buff, 512); ! 326: startad += 512; ! 327: } ! 328: close(file); ! 329: return (0); ! 330: } ! 331: return (1); ! 332: } ! 333: ! 334: rt_init() ! 335: { ! 336: static initized = 0; ! 337: register char *de, *last; ! 338: register i; ! 339: int dirnum; ! 340: char *mode; ! 341: FILE *temp_floppydes; ! 342: ! 343: if (initized) ! 344: return; ! 345: initized = 1; ! 346: if (flag(c)) { ! 347: struct stat sb; ! 348: char response[128]; ! 349: int tty; ! 350: ! 351: if (stat(defdev, &sb) >= 0 && (sb.st_mode & S_IFMT) == S_IFREG) ! 352: goto ignore; ! 353: tty = open("/dev/tty", O_RDWR); ! 354: #define SURE "Are you sure you want to clobber the floppy? " ! 355: write(tty, SURE, sizeof (SURE)); ! 356: read(tty, response, sizeof (response)); ! 357: if (*response != 'y') ! 358: exit(50); ! 359: close(tty); ! 360: ignore: ! 361: ; ! 362: } ! 363: if (flag(c) || flag(d) || flag(r)) ! 364: mode = "r+"; ! 365: else ! 366: mode = "r"; ! 367: if ((temp_floppydes = fopen(defdev, mode)) == NULL) { ! 368: perror(defdev); ! 369: exit(1); ! 370: } else ! 371: floppydes = fileno(temp_floppydes); ! 372: if (!flag(c)) { ! 373: lread(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0]); ! 374: dirnum = rt_dir[0].rt_axhead.rt_numseg; ! 375: /* check for blank/uninitialized diskette */ ! 376: if (dirnum <= 0) { ! 377: fprintf(stderr,"arff: bad directory format\n"); ! 378: exit(1); ! 379: } ! 380: if (dirnum > RT_DIRSIZE) { ! 381: fprintf(stderr,"arff: too many directory segments\n"); ! 382: exit(1); ! 383: } ! 384: for (i = 1; i < dirnum; i++) ! 385: lread((6+2*i)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[i]); ! 386: } else ! 387: dirnum = 1; ! 388: ! 389: rt_entsiz = 2*rt_dir[0].rt_axhead.rt_entpad + 14; ! 390: rt_entsiz = 14; /* assume rt_entpad = 0 ??? */ ! 391: rt_last = ((char *) &rt_dir[0]) + 10 + 1014/rt_entsiz*rt_entsiz; ! 392: rt_nleft = 0; ! 393: ! 394: for (i = 0; i < dirnum; i++) { ! 395: last = rt_last + i*2*RT_BLOCK; ! 396: for (de = ((char *)&rt_dir[i])+10; de <= last; de += rt_entsiz) ! 397: if (rt(de)->rt_stat == RT_ESEG) ! 398: break; ! 399: rt_curend[i] = rt(de); ! 400: rt_nleft += (last-de)/rt_entsiz; ! 401: } ! 402: } ! 403: ! 404: static FLDOPE result; ! 405: ! 406: FLDOPE * ! 407: lookup(name) ! 408: char *name; ! 409: { ! 410: unsigned short rname[3]; ! 411: register char *de, *last; ! 412: int segnum; ! 413: register index; ! 414: ! 415: srad50(name,rname); ! 416: ! 417: /* ! 418: * Search for name, accumulate blocks in index ! 419: */ ! 420: rt_init(); ! 421: for (segnum = 0; segnum != -1; ! 422: segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) ! 423: { ! 424: index = 0; ! 425: last = rt_last + segnum*2*RT_BLOCK; ! 426: for (de=((char *)&rt_dir[segnum])+10; ! 427: rt(de)->rt_stat != RT_ESEG; de += rt_entsiz) ! 428: switch(rt(de)->rt_stat) { ! 429: ! 430: case RT_FILE: ! 431: case RT_TEMP: ! 432: if(samename(rname,rt(de)->rt_name)) { ! 433: result.count = rt(de)->rt_len * 512; ! 434: result.startad = 512* ! 435: (rt_dir[segnum].rt_axhead.rt_stfile + index); ! 436: result.rtdope = (struct rt_ent *) de; ! 437: return (&result); ! 438: } ! 439: ! 440: case RT_NULL: ! 441: index += rt(de)->rt_len; ! 442: } ! 443: } ! 444: return ((FLDOPE *) 0); ! 445: ! 446: } ! 447: ! 448: static ! 449: samename(a, b) ! 450: u_short a[], b[]; ! 451: { ! 452: return (*a == *b && a[1] == b[1] && a[2] == b[2] ); ! 453: } ! 454: ! 455: rad50(cp, out) ! 456: register u_char *cp; ! 457: u_short *out; ! 458: { ! 459: register index, temp; ! 460: ! 461: for (index = 0; *cp; index++) { ! 462: temp = Ain1 * table[*cp++]; ! 463: if (*cp!=0) { ! 464: temp += Ain2 * table[*cp++]; ! 465: if(*cp!=0) ! 466: temp += table[*cp++]; ! 467: } ! 468: out[index] = temp; ! 469: } ! 470: } ! 471: ! 472: #define reduce(x, p, q) (x = v[p/q], p %= q); ! 473: ! 474: unrad50(count, in, cp) ! 475: u_short *in; ! 476: register char *cp; ! 477: { ! 478: register i, temp; ! 479: register u_char *v = (u_char *) val; ! 480: ! 481: for (i = 0; i < count; i++) { ! 482: temp = in[i]; ! 483: reduce(*cp++, temp, Ain1); ! 484: reduce(*cp++, temp, Ain2); ! 485: reduce(*cp++, temp, 1); ! 486: } ! 487: *cp=0; ! 488: } ! 489: ! 490: srad50(name, rname) ! 491: register char *name; ! 492: register u_short *rname; ! 493: { ! 494: register index; ! 495: register char *cp; ! 496: char file[7], ext[4]; ! 497: ! 498: /* ! 499: * Find end of pathname ! 500: */ ! 501: for (cp = name; *cp++; ) ! 502: ; ! 503: while (cp >= name && *--cp != '/') ! 504: ; ! 505: cp++; ! 506: /* ! 507: * Change to rad50 ! 508: */ ! 509: for (index = 0; *cp; ) { ! 510: file[index++] = *cp++; ! 511: if (*cp == '.') { ! 512: cp++; ! 513: break; ! 514: } ! 515: if (index >= 6) { ! 516: break; ! 517: } ! 518: } ! 519: file[index] = 0; ! 520: for (index = 0; *cp; ) { ! 521: ext[index++] = *cp++; ! 522: if (*cp == '.' || index >= 3) ! 523: break; ! 524: } ! 525: ext[index]=0; ! 526: rname[0] = rname[1] = rname[2] = 0; ! 527: rad50((u_char *)file, rname); ! 528: rad50((u_char *)ext, rname+2); ! 529: } ! 530: ! 531: sunrad50(name, rname) ! 532: u_short rname[]; ! 533: register char *name; ! 534: { ! 535: register char *cp, *cp2; ! 536: char ext[4]; ! 537: ! 538: unrad50(2, rname, name); ! 539: unrad50(1, rname + 2, ext); ! 540: /* ! 541: * Jam name and extension together with a dot ! 542: * deleting white space ! 543: */ ! 544: for (cp = name; *cp++;) ! 545: ; ! 546: --cp; ! 547: while (*--cp == ' ' && cp >= name) ! 548: ; ! 549: *++cp = '.'; ! 550: cp++; ! 551: for (cp2 = ext; *cp2 != ' ' && cp2 < ext+3;) ! 552: *cp++ = *cp2++; ! 553: *cp=0; ! 554: if (cp[-1] == '.') ! 555: cp[-1] = 0; ! 556: } ! 557: ! 558: static char *oval = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.@0123456789"; ! 559: static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789"; ! 560: ! 561: static char table[256] = { ! 562: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 563: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 564: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, ! 565: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, ! 566: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 567: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 568: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 569: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 570: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 571: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 572: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, ! 573: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, ! 574: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 575: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 576: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 577: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 }; ! 578: ! 579: /* ! 580: * Logical to physical adress translation ! 581: */ ! 582: long ! 583: trans(logical) ! 584: register int logical; ! 585: { ! 586: register int sector, bytes, track; ! 587: ! 588: logical += 26*128; ! 589: bytes = (logical&127); ! 590: logical >>= 7; ! 591: sector = logical%26; ! 592: if(sector >= 13) ! 593: sector = sector*2+1; ! 594: else ! 595: sector *= 2; ! 596: sector += 26 + ((track = (logical/26))-1)*6; ! 597: sector %= 26; ! 598: return ((((track*26)+sector) << 7) + bytes); ! 599: } ! 600: ! 601: lread(startad, count, obuff) ! 602: register startad, count; ! 603: register char *obuff; ! 604: { ! 605: long trans(); ! 606: extern floppydes; ! 607: register int size = flag(m) ? 512 : 128; ! 608: ! 609: rt_init(); ! 610: while ((count -= size) >= 0) { ! 611: lseek(floppydes, flag(m) ? ! 612: (long)startad : trans(startad), 0); ! 613: if (read(floppydes, obuff, size) != size) ! 614: fprintf(stderr, "arff: read error block %d\n", ! 615: startad/size); ! 616: obuff += size; ! 617: startad += size; ! 618: } ! 619: } ! 620: ! 621: lwrite(startad, count, obuff) ! 622: register startad, count; ! 623: register char *obuff; ! 624: { ! 625: long trans(); ! 626: extern floppydes; ! 627: register int size = flag(m) ? 512 : 128; ! 628: ! 629: rt_init(); ! 630: while ((count -= size) >= 0) { ! 631: lseek(floppydes, flag(m) ? ! 632: (long)startad : trans(startad), 0); ! 633: if (write(floppydes, obuff, size) != size) ! 634: fprintf(stderr, "arff: write error block %d\n", ! 635: startad/size); ! 636: obuff += size; ! 637: startad += size; ! 638: } ! 639: } ! 640: ! 641: rcmd() ! 642: { ! 643: register int i; ! 644: ! 645: rt_init(); ! 646: if (namc > 0) ! 647: for (i = 0; i < namc; i++) ! 648: if (rtr(namv[i]) == 0) ! 649: namv[i] = 0; ! 650: } ! 651: ! 652: rtr(name) ! 653: char *name; ! 654: { ! 655: register FLDOPE *dope; ! 656: register struct rt_ent *de; ! 657: struct stat buf; ! 658: register struct stat *bufp = &buf; ! 659: int segnum; ! 660: register char *last; ! 661: ! 662: if (stat(name, bufp) < 0) { ! 663: perror(name); ! 664: return (-1); ! 665: } ! 666: if (dope = lookup(name)) { ! 667: /* can replace, no problem */ ! 668: de = dope->rtdope; ! 669: if (bufp->st_size <= (de->rt_len * 512)) ! 670: printf("r - %s\n",name), ! 671: toflop(name, bufp->st_size, dope); ! 672: else { ! 673: fprintf(stderr, ! 674: "%s will not fit in currently used file on floppy\n", ! 675: name); ! 676: return (-1); ! 677: } ! 678: goto found; ! 679: } ! 680: /* ! 681: * Search for vacant spot ! 682: */ ! 683: for (segnum = 0; segnum != -1; ! 684: segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) ! 685: { ! 686: last = rt_last + segnum*2*RT_BLOCK; ! 687: for (de = rt_dir[segnum].rt_ents; ! 688: rt(de)->rt_stat != RT_ESEG; de++) ! 689: if ((de)->rt_stat == RT_NULL) { ! 690: if (bufp->st_size <= (de->rt_len*512)) { ! 691: printf("a - %s\n",name), ! 692: mkent(de, segnum, bufp,name); ! 693: goto found; ! 694: } ! 695: continue; ! 696: } ! 697: } ! 698: printf("%s: no slot for file\n", name); ! 699: return (-1); ! 700: ! 701: found: ! 702: if (dope = lookup(name)) { ! 703: toflop(name, bufp->st_size, dope); ! 704: return (0); ! 705: } ! 706: printf("%s: internal error, added then not found\n", name); ! 707: return (-1); ! 708: } ! 709: ! 710: mkent(de, segnum, bufp, name) ! 711: register struct rt_ent *de; ! 712: int segnum; ! 713: register struct stat *bufp; ! 714: char *name; ! 715: { ! 716: struct tm *localtime(); ! 717: register struct tm *timp; ! 718: register struct rt_ent *workp; ! 719: int count; ! 720: ! 721: count = (((bufp->st_size -1) >>9) + 1); ! 722: /* make sure there is room */ ! 723: if (de->rt_len == count) ! 724: goto overwrite; ! 725: if ((char *)rt_curend[segnum] == (rt_last + (segnum*2*RT_BLOCK))) { ! 726: /* no entries left on segment */ ! 727: if (flag(o)) ! 728: goto overwrite; ! 729: fprintf(stderr, "Directory segment #%d full on %s\n", ! 730: segnum+1, defdev); ! 731: exit(1); ! 732: } ! 733: /* copy directory entries up */ ! 734: for (workp = rt_curend[segnum]+1; workp > de; workp--) ! 735: *workp = workp[-1]; ! 736: de[1].rt_len -= count; ! 737: de->rt_len = count; ! 738: rt_curend[segnum]++; ! 739: rt_nleft--; ! 740: ! 741: overwrite: ! 742: srad50(name,de->rt_name); ! 743: timp = localtime(&bufp->st_mtime); ! 744: de->rt_date.rt_dy = timp->tm_mday; ! 745: de->rt_date.rt_mo = timp->tm_mon + 1; ! 746: de->rt_date.rt_yr = timp->tm_year - 72; ! 747: de->rt_stat = RT_FILE; ! 748: de->rt_pad = 0; ! 749: de->rt_chan = 0; ! 750: de->rt_job = 0; ! 751: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[segnum]); ! 752: } ! 753: ! 754: toflop(name, ocount, dope) ! 755: char *name; ! 756: register FLDOPE *dope; ! 757: long ocount; ! 758: { ! 759: register file, n, startad = dope->startad, count = ocount; ! 760: char buff[512]; ! 761: ! 762: file = open(name, 0); ! 763: if (file < 0) { ! 764: fprintf(stderr, "arff: couldn't open %s\n",name); ! 765: exit(1); ! 766: } ! 767: for( ; count >= 512; count -= 512) { ! 768: read(file, buff, 512); ! 769: lwrite(startad, 512, buff); ! 770: startad += 512; ! 771: } ! 772: read(file, buff, count); ! 773: close(file); ! 774: if (count <= 0) ! 775: return; ! 776: for (n = count; n < 512; n ++) ! 777: buff[n] = 0; ! 778: lwrite(startad, 512, buff); ! 779: count = (dope->rtdope->rt_len*512-ocount)/512 ; ! 780: if (count <= 0) ! 781: return; ! 782: for ( ; count > 0 ; count--) { ! 783: startad += 512; ! 784: lwrite(startad, 512, zeroes); ! 785: } ! 786: } ! 787: ! 788: dcmd() ! 789: { ! 790: register int i; ! 791: ! 792: rt_init(); ! 793: if (namc) ! 794: for (i = 0; i < namc; i++) ! 795: if (rtk(namv[i])==0) ! 796: namv[i]=0; ! 797: if (dirdirty) ! 798: scrunch(); ! 799: } ! 800: ! 801: rtk(name) ! 802: char *name; ! 803: { ! 804: register FLDOPE *dope; ! 805: register struct rt_ent *de; ! 806: FLDOPE *lookup(); ! 807: ! 808: if (dope = lookup(name)) { ! 809: printf("d - %s\n",name); ! 810: de = dope->rtdope; ! 811: de->rt_stat = RT_NULL; ! 812: de->rt_name[0] = 0; ! 813: de->rt_name[1] = 0; ! 814: de->rt_name[2] = 0; ! 815: *((u_short *)&(de->rt_date)) = 0; ! 816: dirdirty = 1; ! 817: return (0); ! 818: } ! 819: return (1); ! 820: } ! 821: ! 822: scrunch() ! 823: { ! 824: register struct rt_ent *de , *workp; ! 825: register segnum; ! 826: ! 827: for (segnum = 0; segnum != -1; ! 828: segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { ! 829: for (de = rt_dir[segnum].rt_ents; de <= rt_curend[segnum]; de++) ! 830: if (de->rt_stat == RT_NULL && ! 831: (de+1)->rt_stat == RT_NULL) { ! 832: (de+1)->rt_len += de->rt_len; ! 833: for (workp=de; workp<rt_curend[segnum]; workp++) ! 834: *workp = workp[1]; ! 835: de--; ! 836: rt_curend[segnum]--; ! 837: rt_nleft++; ! 838: } ! 839: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, ! 840: (char *)&rt_dir[segnum]); ! 841: } ! 842: dirdirty = 0; ! 843: }
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