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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 5.6 (Berkeley) 12/26/87"; ! 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: u_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: u_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_PFILE (0200|RT_FILE) /* protected file */ ! 50: #define RT_ESEG 8 ! 51: ! 52: #define RT_BLOCK 512 /* block size */ ! 53: #define RT_DIRSIZE 31 /* max # of directory segments */ ! 54: ! 55: struct rt_head { ! 56: short rt_numseg; /* # of segments available */ ! 57: short rt_nxtseg; /* # of next logical segment */ ! 58: short rt_lstseg; /* highest seg currently open */ ! 59: u_short rt_entpad; /* extra words/directory entry */ ! 60: short rt_stfile; /* block # where files begin */ ! 61: }; ! 62: ! 63: struct rt_dir { ! 64: struct rt_head rt_axhead; ! 65: struct rt_ent rt_ents[72]; ! 66: char _dirpad[6]; ! 67: }; ! 68: ! 69: #define rd_numseg rt_axhead.rt_numseg ! 70: #define rd_nxtseg rt_axhead.rt_nxtseg ! 71: #define rd_lstseg rt_axhead.rt_lstseg ! 72: #define rd_entpad rt_axhead.rt_entpad ! 73: #define rd_stfile rt_axhead.rt_stfile ! 74: ! 75: typedef struct fldope { ! 76: int startad; ! 77: int count; ! 78: struct rt_ent *rtdope; ! 79: } FLDOPE; ! 80: ! 81: FLDOPE *lookup(); ! 82: ! 83: #define rt(p) ((struct rt_ent *) p ) ! 84: #define Ain1 03100 ! 85: #define Ain2 050 ! 86: #define flag(c) (flg[('c') - 'a']) ! 87: ! 88: char *man = "rxtd"; ! 89: char zeroes[512]; ! 90: ! 91: extern char *val; ! 92: extern char table[256]; ! 93: struct rt_dir rt_dir[RT_DIRSIZE] = { ! 94: { ! 95: { 4, 0, 1, 0, 14 }, ! 96: { { 0, RT_NULL, { 0, 0, 0 }, 486, 0 }, ! 97: { 0, RT_ESEG } } ! 98: } ! 99: }; ! 100: ! 101: struct rt_dir rt_nulldir = { ! 102: { 0, 0, 0, 0, 0 }, ! 103: { { 0, RT_NULL, { 0, 0, 0 }, 0, 0 }, ! 104: { 0, RT_ESEG } } ! 105: }; ! 106: ! 107: int rt_entsiz; ! 108: int rt_nleft; ! 109: struct rt_ent *rt_curend[RT_DIRSIZE]; ! 110: int floppydes; ! 111: int dirdirty; ! 112: char *rt_last; ! 113: char *defdev = "/dev/floppy"; ! 114: ! 115: char *opt = "vfbcm"; ! 116: ! 117: extern long lseek(); ! 118: int rcmd(), dcmd(), xcmd(), tcmd(); ! 119: ! 120: int (*comfun)(); ! 121: char flg[26]; ! 122: char **namv; ! 123: int namc; ! 124: ! 125: main(argc, argv) ! 126: char *argv[]; ! 127: { ! 128: register char *cp; ! 129: ! 130: if (argc < 2) ! 131: usage(); ! 132: for (cp = argv[1]; *cp; cp++) ! 133: switch (*cp) { ! 134: ! 135: case 'm': ! 136: case 'v': ! 137: case 'u': ! 138: case 'w': ! 139: case 'b': ! 140: flg[*cp-'a']++; ! 141: continue; ! 142: case 'c': ! 143: flag(c)++; ! 144: dirdirty++; ! 145: continue; ! 146: ! 147: case 'r': ! 148: setcom(rcmd); ! 149: flag(r)++; ! 150: continue; ! 151: ! 152: case 'd': ! 153: setcom(dcmd); ! 154: flag(d)++; ! 155: continue; ! 156: ! 157: case 'x': ! 158: setcom(xcmd); ! 159: continue; ! 160: ! 161: case 't': ! 162: setcom(tcmd); ! 163: continue; ! 164: ! 165: case 'f': ! 166: defdev = argv[2]; ! 167: argv++; ! 168: argc--; ! 169: continue; ! 170: ! 171: default: ! 172: fprintf(stderr, "arff: bad option `%c'\n", *cp); ! 173: exit(1); ! 174: } ! 175: ! 176: namv = argv+2; ! 177: namc = argc-2; ! 178: if (comfun == 0) { ! 179: if (flag(u) == 0) { ! 180: fprintf(stderr, "arff: one of [%s] must be specified\n", ! 181: man); ! 182: exit(1); ! 183: } ! 184: setcom(rcmd); ! 185: } ! 186: (*comfun)(); ! 187: exit(notfound()); ! 188: } ! 189: ! 190: setcom(fun) ! 191: int (*fun)(); ! 192: { ! 193: if (comfun != 0) { ! 194: fprintf(stderr, "arff: only one of [%s] allowed\n", man); ! 195: exit(1); ! 196: } ! 197: comfun = fun; ! 198: } ! 199: ! 200: usage() ! 201: { ! 202: fprintf(stderr, "usage: ar [%s][%s] archive files ...\n", opt, man); ! 203: exit(1); ! 204: } ! 205: ! 206: notfound() ! 207: { ! 208: register i, n = 0; ! 209: ! 210: for (i = 0; i < namc; i++) ! 211: if (namv[i]) { ! 212: fprintf(stderr, "arff: %s not found\n", namv[i]); ! 213: n++; ! 214: } ! 215: return (n); ! 216: } ! 217: ! 218: tcmd() ! 219: { ! 220: register char *de, *last; ! 221: FLDOPE *lookup(), *dope; ! 222: int segnum, nleft; ! 223: register i; ! 224: register struct rt_ent *rde; ! 225: ! 226: rt_init(); ! 227: if (namc != 0) { ! 228: for (i = 0; i < namc; i++) ! 229: if (dope = lookup(namv[i])) { ! 230: rde = dope->rtdope; ! 231: (void) rtls(rde); ! 232: namv[i] = 0; ! 233: } ! 234: return; ! 235: } ! 236: for (segnum = 0; segnum != -1; ! 237: segnum = rt_dir[segnum].rd_nxtseg - 1) { ! 238: last = rt_last + segnum*2*RT_BLOCK; ! 239: for (de = ((char *)&rt_dir[segnum])+10; de <= last; ! 240: de += rt_entsiz) ! 241: if (rtls(rt(de))) { ! 242: nleft = (last-de)/rt_entsiz; ! 243: #define ENTRIES "\n%d entries remaining in directory segment %d.\n" ! 244: printf(ENTRIES, nleft, segnum+1); ! 245: break; ! 246: } ! 247: } ! 248: } ! 249: ! 250: rtls(de) ! 251: register struct rt_ent *de; ! 252: { ! 253: int month, day, year; ! 254: char name[12], ext[4]; ! 255: ! 256: switch (de->rt_stat) { ! 257: ! 258: case RT_TEMP: ! 259: if (flag(v)) ! 260: printf("Tempfile:\n"); ! 261: /* fall thru...*/ ! 262: ! 263: case RT_FILE: ! 264: case RT_PFILE: ! 265: if (!flag(v)) { ! 266: sunrad50(name, de->rt_name); ! 267: printf("%s\n", name); ! 268: break; ! 269: } ! 270: unrad50(2, de->rt_name, name); ! 271: unrad50(1, &(de->rt_name[2]), ext); ! 272: day = de->rt_date.rt_dy; ! 273: year = de->rt_date.rt_yr+72; ! 274: month = de->rt_date.rt_mo; ! 275: printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name, ! 276: ext, month, day, year, de->rt_len); ! 277: break; ! 278: ! 279: case RT_NULL: ! 280: printf("%-25.9s %d\n","<UNUSED>", de->rt_len); ! 281: break; ! 282: ! 283: case RT_ESEG: ! 284: return (1); ! 285: } ! 286: return (0); ! 287: } ! 288: ! 289: xcmd() ! 290: { ! 291: register char *de, *last; ! 292: int segnum; ! 293: char name[12]; ! 294: register int i; ! 295: ! 296: rt_init(); ! 297: if (namc != 0) { ! 298: for (i = 0; i < namc; i++) ! 299: if (rtx(namv[i]) == 0) ! 300: namv[i] = 0; ! 301: return; ! 302: } ! 303: for (segnum = 0; segnum != -1; ! 304: segnum = rt_dir[segnum].rd_nxtseg-1) ! 305: for (last = rt_last+(segnum*2*RT_BLOCK), ! 306: de = ((char *)&rt_dir[segnum])+10; de <= last; ! 307: de += rt_entsiz) { ! 308: switch (rt(de)->rt_stat) { ! 309: ! 310: case RT_ESEG: ! 311: break; /* exit loop and try next segment */ ! 312: ! 313: case RT_TEMP: ! 314: case RT_FILE: ! 315: case RT_PFILE: ! 316: sunrad50(name,rt(de)->rt_name); ! 317: (void) rtx(name); ! 318: ! 319: case RT_NULL: ! 320: default: ! 321: continue; ! 322: } ! 323: break; ! 324: } ! 325: } ! 326: ! 327: rtx(name) ! 328: char *name; ! 329: { ! 330: register FLDOPE *dope; ! 331: FLDOPE *lookup(); ! 332: register startad, count; ! 333: int file; ! 334: char buff[512]; ! 335: ! 336: ! 337: if (dope = lookup(name)) { ! 338: if (flag(v)) ! 339: (void) rtls(dope->rtdope); ! 340: else ! 341: printf("x - %s\n",name); ! 342: ! 343: if ((file = creat(name, 0666)) < 0) ! 344: return (1); ! 345: count = dope->count; ! 346: startad = dope->startad; ! 347: for( ; count > 0 ; count -= 512) { ! 348: (void) lread(startad, 512, buff); ! 349: (void) write(file, buff, 512); ! 350: startad += 512; ! 351: } ! 352: (void) close(file); ! 353: return (0); ! 354: } ! 355: return (1); ! 356: } ! 357: ! 358: rt_init() ! 359: { ! 360: static initized = 0; ! 361: register char *de, *last; ! 362: register i; ! 363: int dirnum; ! 364: char *mode; ! 365: FILE *temp_floppydes; ! 366: ! 367: if (initized) ! 368: return; ! 369: initized = 1; ! 370: if (flag(c)) { ! 371: struct stat sb; ! 372: char response[128]; ! 373: int tty; ! 374: ! 375: if (stat(defdev, &sb) >= 0 && (sb.st_mode & S_IFMT) == S_IFREG) ! 376: goto ignore; ! 377: tty = open("/dev/tty", O_RDWR); ! 378: #define SURE "Are you sure you want to clobber the floppy? " ! 379: (void) write(tty, SURE, sizeof (SURE)); ! 380: (void) read(tty, response, sizeof (response)); ! 381: if (*response != 'y') ! 382: exit(50); ! 383: (void) close(tty); ! 384: ignore: ! 385: ; ! 386: } ! 387: if (flag(c) || flag(d) || flag(r)) ! 388: mode = "r+"; ! 389: else ! 390: mode = "r"; ! 391: if ((temp_floppydes = fopen(defdev, mode)) == NULL) { ! 392: perror(defdev); ! 393: exit(1); ! 394: } else ! 395: floppydes = fileno(temp_floppydes); ! 396: if (!flag(c)) { ! 397: if (lread(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0])) ! 398: exit(2); ! 399: dirnum = rt_dir[0].rd_numseg; ! 400: /* check for blank/uninitialized diskette */ ! 401: if (dirnum <= 0) { ! 402: fprintf(stderr,"arff: bad directory format\n"); ! 403: exit(1); ! 404: } ! 405: if (dirnum > RT_DIRSIZE) { ! 406: fprintf(stderr,"arff: too many directory segments\n"); ! 407: exit(1); ! 408: } ! 409: for (i = 1; i < dirnum; i++) ! 410: if (lread((6+2*i)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[i])) ! 411: exit(1); ! 412: } else { ! 413: dirnum = 1; ! 414: if (flag(b)) { ! 415: rt_dir[0].rd_numseg = 31; ! 416: rt_dir[0].rd_stfile = 68; ! 417: rt_dir[0].rt_ents[0].rt_len = 20480 - 68; ! 418: } ! 419: } ! 420: ! 421: rt_entsiz = 2*rt_dir[0].rd_entpad + 14; ! 422: /* ! 423: * We assume that the directory entries have no padding. This ! 424: * may not be a valid assumption, but there are numerous point ! 425: * in the code where it assumes it is an rt_ent structure and ! 426: * not an rt_entsiz sized structure. ! 427: */ ! 428: rt_entsiz = 14; ! 429: rt_last = ((char *) &rt_dir[0]) + 10 + 1014/rt_entsiz*rt_entsiz; ! 430: rt_nleft = 0; ! 431: ! 432: for (i = 0; i < dirnum; i++) { ! 433: last = rt_last + i*2*RT_BLOCK; ! 434: for (de = ((char *)&rt_dir[i])+10; de <= last; de += rt_entsiz) ! 435: if (rt(de)->rt_stat == RT_ESEG) ! 436: break; ! 437: rt_curend[i] = rt(de); ! 438: rt_nleft += (last-de)/rt_entsiz; ! 439: } ! 440: } ! 441: ! 442: static FLDOPE result; ! 443: ! 444: FLDOPE * ! 445: lookup(name) ! 446: char *name; ! 447: { ! 448: unsigned short rname[3]; ! 449: register char *de; ! 450: int segnum; ! 451: register index; ! 452: ! 453: srad50(name,rname); ! 454: ! 455: /* ! 456: * Search for name, accumulate blocks in index ! 457: */ ! 458: rt_init(); ! 459: for (segnum = 0; segnum != -1; ! 460: segnum = rt_dir[segnum].rd_nxtseg - 1) ! 461: { ! 462: index = 0; ! 463: for (de=((char *)&rt_dir[segnum])+10; ! 464: rt(de)->rt_stat != RT_ESEG; de += rt_entsiz) ! 465: switch(rt(de)->rt_stat) { ! 466: ! 467: case RT_FILE: ! 468: case RT_PFILE: ! 469: case RT_TEMP: ! 470: if(samename(rname,rt(de)->rt_name)) { ! 471: result.count = rt(de)->rt_len * 512; ! 472: result.startad = 512* ! 473: (rt_dir[segnum].rd_stfile + index); ! 474: result.rtdope = (struct rt_ent *) de; ! 475: return (&result); ! 476: } ! 477: ! 478: case RT_NULL: ! 479: index += rt(de)->rt_len; ! 480: } ! 481: } ! 482: return ((FLDOPE *) 0); ! 483: ! 484: } ! 485: ! 486: static ! 487: samename(a, b) ! 488: u_short a[], b[]; ! 489: { ! 490: return (*a == *b && a[1] == b[1] && a[2] == b[2] ); ! 491: } ! 492: ! 493: rad50(cp, out) ! 494: register u_char *cp; ! 495: u_short *out; ! 496: { ! 497: register index, temp; ! 498: ! 499: for (index = 0; *cp; index++) { ! 500: temp = Ain1 * table[*cp++]; ! 501: if (*cp!=0) { ! 502: temp += Ain2 * table[*cp++]; ! 503: if(*cp!=0) ! 504: temp += table[*cp++]; ! 505: } ! 506: out[index] = temp; ! 507: } ! 508: } ! 509: ! 510: #define reduce(x, p, q) (x = v[p/q], p %= q); ! 511: ! 512: unrad50(count, in, cp) ! 513: u_short *in; ! 514: register char *cp; ! 515: { ! 516: register i, temp; ! 517: register u_char *v = (u_char *) val; ! 518: ! 519: for (i = 0; i < count; i++) { ! 520: temp = in[i]; ! 521: reduce(*cp++, temp, Ain1); ! 522: reduce(*cp++, temp, Ain2); ! 523: reduce(*cp++, temp, 1); ! 524: } ! 525: *cp=0; ! 526: } ! 527: ! 528: srad50(name, rname) ! 529: register char *name; ! 530: register u_short *rname; ! 531: { ! 532: register index; ! 533: register char *cp; ! 534: char file[7], ext[4]; ! 535: ! 536: /* ! 537: * Find end of pathname ! 538: */ ! 539: for (cp = name; *cp++; ) ! 540: ; ! 541: while (cp >= name && *--cp != '/') ! 542: ; ! 543: cp++; ! 544: /* ! 545: * Change to rad50 ! 546: */ ! 547: for (index = 0; *cp; ) { ! 548: file[index++] = *cp++; ! 549: if (*cp == '.') { ! 550: cp++; ! 551: break; ! 552: } ! 553: if (index >= 6) { ! 554: break; ! 555: } ! 556: } ! 557: file[index] = 0; ! 558: for (index = 0; *cp; ) { ! 559: ext[index++] = *cp++; ! 560: if (*cp == '.' || index >= 3) ! 561: break; ! 562: } ! 563: ext[index]=0; ! 564: rname[0] = rname[1] = rname[2] = 0; ! 565: rad50((u_char *)file, rname); ! 566: rad50((u_char *)ext, rname+2); ! 567: } ! 568: ! 569: sunrad50(name, rname) ! 570: u_short rname[]; ! 571: register char *name; ! 572: { ! 573: register char *cp, *cp2; ! 574: char ext[4]; ! 575: ! 576: unrad50(2, rname, name); ! 577: unrad50(1, rname + 2, ext); ! 578: /* ! 579: * Jam name and extension together with a dot ! 580: * deleting white space ! 581: */ ! 582: for (cp = name; *cp++;) ! 583: ; ! 584: --cp; ! 585: while (*--cp == ' ' && cp >= name) ! 586: ; ! 587: *++cp = '.'; ! 588: cp++; ! 589: for (cp2 = ext; *cp2 != ' ' && cp2 < ext+3;) ! 590: *cp++ = *cp2++; ! 591: *cp=0; ! 592: if (cp[-1] == '.') ! 593: cp[-1] = 0; ! 594: } ! 595: ! 596: static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789"; ! 597: ! 598: static char table[256] = { ! 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, 29, ! 607: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 608: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 609: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, ! 610: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, ! 611: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 612: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 613: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 614: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 }; ! 615: ! 616: /* ! 617: * Logical to physical adress translation ! 618: */ ! 619: long ! 620: trans(logical) ! 621: register int logical; ! 622: { ! 623: register int sector, bytes, track; ! 624: ! 625: logical += 26*128; ! 626: bytes = (logical&127); ! 627: logical >>= 7; ! 628: sector = logical%26; ! 629: if(sector >= 13) ! 630: sector = sector*2+1; ! 631: else ! 632: sector *= 2; ! 633: sector += 26 + ((track = (logical/26))-1)*6; ! 634: sector %= 26; ! 635: return ((((track*26)+sector) << 7) + bytes); ! 636: } ! 637: ! 638: lread(startad, count, obuff) ! 639: register startad, count; ! 640: register char *obuff; ! 641: { ! 642: long trans(); ! 643: extern floppydes; ! 644: register int size = flag(m) ? 512 : 128; ! 645: int error = 0; ! 646: extern int errno; ! 647: ! 648: rt_init(); ! 649: while ((count -= size) >= 0) { ! 650: (void) lseek(floppydes, flag(m) ? ! 651: (long)startad : trans(startad), 0); ! 652: if (read(floppydes, obuff, size) != size) { ! 653: error = errno; ! 654: fprintf(stderr, "arff: read error block %d: ", ! 655: startad/size); ! 656: errno = error; ! 657: perror(""); ! 658: } ! 659: obuff += size; ! 660: startad += size; ! 661: } ! 662: return (error); ! 663: } ! 664: ! 665: lwrite(startad, count, obuff) ! 666: register startad, count; ! 667: register char *obuff; ! 668: { ! 669: long trans(); ! 670: extern floppydes; ! 671: register int size = flag(m) ? 512 : 128; ! 672: ! 673: rt_init(); ! 674: while ((count -= size) >= 0) { ! 675: (void) lseek(floppydes, flag(m) ? ! 676: (long)startad : trans(startad), 0); ! 677: if (write(floppydes, obuff, size) != size) ! 678: fprintf(stderr, "arff: write error block %d\n", ! 679: startad/size); ! 680: obuff += size; ! 681: startad += size; ! 682: } ! 683: } ! 684: ! 685: rcmd() ! 686: { ! 687: register int i; ! 688: ! 689: rt_init(); ! 690: if (namc > 0) ! 691: for (i = 0; i < namc; i++) ! 692: if (rtr(namv[i]) == 0) ! 693: namv[i] = 0; ! 694: } ! 695: ! 696: rtr(name) ! 697: char *name; ! 698: { ! 699: register FLDOPE *dope; ! 700: register struct rt_ent *de; ! 701: struct stat buf; ! 702: register struct stat *bufp = &buf; ! 703: int segnum; ! 704: char type; ! 705: ! 706: if (stat(name, bufp) < 0) { ! 707: perror(name); ! 708: return (-1); ! 709: } ! 710: type = 'a'; ! 711: if (dope = lookup(name)) { ! 712: /* can replace, no problem */ ! 713: de = dope->rtdope; ! 714: if (bufp->st_size <= (de->rt_len * 512)) { ! 715: printf("r - %s\n",name); ! 716: toflop(name, bufp->st_size, dope); ! 717: goto found; ! 718: } else { ! 719: de = dope->rtdope; ! 720: type = 'r'; ! 721: de->rt_stat = RT_NULL; ! 722: de->rt_name[0] = 0; ! 723: de->rt_name[1] = 0; ! 724: de->rt_name[2] = 0; ! 725: *((u_short *)&(de->rt_date)) = 0; ! 726: scrunch(); ! 727: } ! 728: } ! 729: /* ! 730: * Search for vacant spot ! 731: */ ! 732: for (segnum = 0; segnum != -1; ! 733: segnum = rt_dir[segnum].rd_nxtseg - 1) ! 734: { ! 735: for (de = rt_dir[segnum].rt_ents; ! 736: rt(de)->rt_stat != RT_ESEG; de++) ! 737: if ((de)->rt_stat == RT_NULL) { ! 738: if (bufp->st_size <= (de->rt_len*512)) { ! 739: printf("%c - %s\n", type, name), ! 740: mkent(de, segnum, bufp,name); ! 741: goto found; ! 742: } ! 743: continue; ! 744: } ! 745: } ! 746: if (type == 'r') ! 747: printf("%s: no slot for file, file deleted\n",name); ! 748: else ! 749: printf("%s: no slot for file\n", name); ! 750: return (-1); ! 751: ! 752: found: ! 753: if (dope = lookup(name)) { ! 754: toflop(name, bufp->st_size, dope); ! 755: return (0); ! 756: } ! 757: printf("%s: internal error, added then not found\n", name); ! 758: return (-1); ! 759: } ! 760: ! 761: mkent(de, segnum, bufp, name) ! 762: register struct rt_ent *de; ! 763: int segnum; ! 764: register struct stat *bufp; ! 765: char *name; ! 766: { ! 767: struct tm *localtime(); ! 768: register struct tm *timp; ! 769: register struct rt_ent *workp; ! 770: int count; ! 771: ! 772: count = (((bufp->st_size -1) >>9) + 1); ! 773: /* make sure there is room */ ! 774: if (de->rt_len == count) ! 775: goto overwrite; ! 776: if ((char *)rt_curend[segnum] == (rt_last + (segnum*2*RT_BLOCK))) { ! 777: /* no entries left on segment, trying adding new segment */ ! 778: if (rt_dir[0].rd_numseg > rt_dir[0].rd_lstseg) { ! 779: short newseg; ! 780: register int i; ! 781: int maxseg; ! 782: short size; ! 783: ! 784: newseg = rt_dir[0].rd_lstseg++; ! 785: rt_dir[newseg] = rt_nulldir; ! 786: rt_dir[newseg].rd_nxtseg = rt_dir[segnum].rd_nxtseg; ! 787: rt_dir[segnum].rd_nxtseg = newseg + 1; ! 788: rt_dir[newseg].rd_entpad = rt_dir[0].rd_entpad; ! 789: rt_dir[newseg].rd_numseg = rt_dir[0].rd_numseg; ! 790: size = 0; ! 791: maxseg = 0; ! 792: for(i = newseg - 1; i >= 0; i--) { ! 793: workp = rt_curend[i] - 1; ! 794: if (workp->rt_stat != RT_NULL) ! 795: continue; ! 796: if (workp->rt_len < size) ! 797: continue; ! 798: size = workp->rt_len; ! 799: maxseg = i; ! 800: } ! 801: size = 0; ! 802: for (workp = &rt_dir[maxseg].rt_ents[0]; ! 803: workp->rt_stat != RT_ESEG; workp++) { ! 804: size += workp->rt_len; ! 805: } ! 806: workp--; ! 807: rt_dir[newseg].rt_ents[0].rt_len = workp->rt_len; ! 808: rt_dir[newseg].rd_stfile = ! 809: rt_dir[maxseg].rd_stfile + size - workp->rt_len; ! 810: workp->rt_len = 0; ! 811: rt_curend[newseg] = &rt_dir[newseg].rt_ents[1]; ! 812: lwrite(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0]); ! 813: if (segnum != 0) ! 814: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, ! 815: (char *)&rt_dir[segnum]); ! 816: lwrite((6+newseg*2)*RT_BLOCK, 2*RT_BLOCK, ! 817: (char *)&rt_dir[newseg]); ! 818: segnum = newseg; ! 819: de = &rt_dir[newseg].rt_ents[0]; ! 820: } else { ! 821: fprintf(stderr, "All directory segments full on %s\n", ! 822: defdev); ! 823: exit(1); ! 824: } ! 825: } ! 826: /* copy directory entries up */ ! 827: for (workp = rt_curend[segnum]+1; workp > de; workp--) ! 828: *workp = workp[-1]; ! 829: de[1].rt_len -= count; ! 830: de->rt_len = count; ! 831: rt_curend[segnum]++; ! 832: rt_nleft--; ! 833: ! 834: overwrite: ! 835: srad50(name,de->rt_name); ! 836: timp = localtime(&bufp->st_mtime); ! 837: de->rt_date.rt_dy = timp->tm_mday; ! 838: de->rt_date.rt_mo = timp->tm_mon + 1; ! 839: de->rt_date.rt_yr = timp->tm_year - 72; ! 840: de->rt_stat = RT_FILE; ! 841: de->rt_pad = 0; ! 842: de->rt_chan = 0; ! 843: de->rt_job = 0; ! 844: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[segnum]); ! 845: } ! 846: ! 847: toflop(name, ocount, dope) ! 848: char *name; ! 849: register FLDOPE *dope; ! 850: long ocount; ! 851: { ! 852: register file, n, startad = dope->startad, count = ocount; ! 853: char buff[512]; ! 854: ! 855: file = open(name, 0); ! 856: if (file < 0) { ! 857: fprintf(stderr, "arff: couldn't open %s\n",name); ! 858: exit(1); ! 859: } ! 860: for( ; count >= 512; count -= 512) { ! 861: (void) read(file, buff, 512); ! 862: lwrite(startad, 512, buff); ! 863: startad += 512; ! 864: } ! 865: (void) read(file, buff, count); ! 866: (void) close(file); ! 867: if (count <= 0) ! 868: return; ! 869: for (n = count; n < 512; n ++) ! 870: buff[n] = 0; ! 871: lwrite(startad, 512, buff); ! 872: count = (dope->rtdope->rt_len*512-ocount)/512 ; ! 873: if (count <= 0) ! 874: return; ! 875: for ( ; count > 0 ; count--) { ! 876: startad += 512; ! 877: lwrite(startad, 512, zeroes); ! 878: } ! 879: } ! 880: ! 881: dcmd() ! 882: { ! 883: register int i; ! 884: ! 885: rt_init(); ! 886: if (namc) ! 887: for (i = 0; i < namc; i++) ! 888: if (rtk(namv[i])==0) ! 889: namv[i]=0; ! 890: if (dirdirty) ! 891: scrunch(); ! 892: } ! 893: ! 894: rtk(name) ! 895: char *name; ! 896: { ! 897: register FLDOPE *dope; ! 898: register struct rt_ent *de; ! 899: FLDOPE *lookup(); ! 900: ! 901: if (dope = lookup(name)) { ! 902: printf("d - %s\n",name); ! 903: de = dope->rtdope; ! 904: de->rt_stat = RT_NULL; ! 905: de->rt_name[0] = 0; ! 906: de->rt_name[1] = 0; ! 907: de->rt_name[2] = 0; ! 908: *((u_short *)&(de->rt_date)) = 0; ! 909: dirdirty = 1; ! 910: return (0); ! 911: } ! 912: return (1); ! 913: } ! 914: ! 915: scrunch() ! 916: { ! 917: register struct rt_ent *de , *workp; ! 918: register segnum; ! 919: ! 920: for (segnum = 0; segnum != -1; ! 921: segnum = rt_dir[segnum].rd_nxtseg - 1) { ! 922: for (de = rt_dir[segnum].rt_ents; de <= rt_curend[segnum]; de++) ! 923: if (de->rt_stat == RT_NULL && ! 924: (de+1)->rt_stat == RT_NULL) { ! 925: (de+1)->rt_len += de->rt_len; ! 926: for (workp=de; workp<rt_curend[segnum]; workp++) ! 927: *workp = workp[1]; ! 928: de--; ! 929: rt_curend[segnum]--; ! 930: rt_nleft++; ! 931: } ! 932: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, ! 933: (char *)&rt_dir[segnum]); ! 934: } ! 935: dirdirty = 0; ! 936: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.