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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 5.7 (Berkeley) 5/11/89"; ! 15: #endif not lint ! 16: ! 17: #include <sys/types.h> ! 18: #include <sys/stat.h> ! 19: #include <sys/time.h> ! 20: #include <sys/signal.h> ! 21: #include <sys/file.h> ! 22: #include <stdio.h> ! 23: #include "pathnames.h" ! 24: ! 25: #define dbprintf printf ! 26: ! 27: struct rt_dat { ! 28: u_short rt_yr:5; /* year-1972 */ ! 29: u_short rt_dy:5; /* day */ ! 30: u_short rt_mo:5; /* month */ ! 31: }; ! 32: ! 33: struct rt_axent { ! 34: char rt_sent[14]; ! 35: }; ! 36: ! 37: struct rt_ent { ! 38: char rt_pad; /* unusued */ ! 39: u_char rt_stat; /* type of entry, or end of seg */ ! 40: u_short rt_name[3]; /* name, 3 words in rad50 form */ ! 41: u_short rt_len; /* length of file */ ! 42: u_char rt_chan; /* only used in temporary files */ ! 43: char rt_job; /* only used in temporary files */ ! 44: struct rt_dat rt_date; /* creation date */ ! 45: }; ! 46: ! 47: #define RT_TEMP 1 ! 48: #define RT_NULL 2 ! 49: #define RT_FILE 4 ! 50: #define RT_PFILE (0200|RT_FILE) /* protected file */ ! 51: #define RT_ESEG 8 ! 52: ! 53: #define RT_BLOCK 512 /* block size */ ! 54: #define RT_DIRSIZE 31 /* max # of directory segments */ ! 55: ! 56: struct rt_head { ! 57: short rt_numseg; /* # of segments available */ ! 58: short rt_nxtseg; /* # of next logical segment */ ! 59: short rt_lstseg; /* highest seg currently open */ ! 60: u_short rt_entpad; /* extra words/directory entry */ ! 61: short rt_stfile; /* block # where files begin */ ! 62: }; ! 63: ! 64: struct rt_dir { ! 65: struct rt_head rt_axhead; ! 66: struct rt_ent rt_ents[72]; ! 67: char _dirpad[6]; ! 68: }; ! 69: ! 70: #define rd_numseg rt_axhead.rt_numseg ! 71: #define rd_nxtseg rt_axhead.rt_nxtseg ! 72: #define rd_lstseg rt_axhead.rt_lstseg ! 73: #define rd_entpad rt_axhead.rt_entpad ! 74: #define rd_stfile rt_axhead.rt_stfile ! 75: ! 76: typedef struct fldope { ! 77: int startad; ! 78: int count; ! 79: struct rt_ent *rtdope; ! 80: } FLDOPE; ! 81: ! 82: FLDOPE *lookup(); ! 83: ! 84: #define rt(p) ((struct rt_ent *) p ) ! 85: #define Ain1 03100 ! 86: #define Ain2 050 ! 87: #define flag(c) (flg[('c') - 'a']) ! 88: ! 89: char *man = "rxtd"; ! 90: char zeroes[512]; ! 91: ! 92: extern char *val; ! 93: extern char table[256]; ! 94: struct rt_dir rt_dir[RT_DIRSIZE] = { ! 95: { ! 96: { 4, 0, 1, 0, 14 }, ! 97: { { 0, RT_NULL, { 0, 0, 0 }, 486, 0 }, ! 98: { 0, RT_ESEG } } ! 99: } ! 100: }; ! 101: ! 102: struct rt_dir rt_nulldir = { ! 103: { 0, 0, 0, 0, 0 }, ! 104: { { 0, RT_NULL, { 0, 0, 0 }, 0, 0 }, ! 105: { 0, RT_ESEG } } ! 106: }; ! 107: ! 108: int rt_entsiz; ! 109: int rt_nleft; ! 110: struct rt_ent *rt_curend[RT_DIRSIZE]; ! 111: int floppydes; ! 112: int dirdirty; ! 113: char *rt_last; ! 114: char *defdev = _PATH_FLOPPY; ! 115: ! 116: char *opt = "vfbcm"; ! 117: ! 118: extern long lseek(); ! 119: int rcmd(), dcmd(), xcmd(), tcmd(); ! 120: ! 121: int (*comfun)(); ! 122: char flg[26]; ! 123: char **namv; ! 124: int namc; ! 125: ! 126: main(argc, argv) ! 127: char *argv[]; ! 128: { ! 129: register char *cp; ! 130: ! 131: if (argc < 2) ! 132: usage(); ! 133: for (cp = argv[1]; *cp; cp++) ! 134: switch (*cp) { ! 135: ! 136: case 'm': ! 137: case 'v': ! 138: case 'u': ! 139: case 'w': ! 140: case 'b': ! 141: flg[*cp-'a']++; ! 142: continue; ! 143: case 'c': ! 144: flag(c)++; ! 145: dirdirty++; ! 146: continue; ! 147: ! 148: case 'r': ! 149: setcom(rcmd); ! 150: flag(r)++; ! 151: continue; ! 152: ! 153: case 'd': ! 154: setcom(dcmd); ! 155: flag(d)++; ! 156: continue; ! 157: ! 158: case 'x': ! 159: setcom(xcmd); ! 160: continue; ! 161: ! 162: case 't': ! 163: setcom(tcmd); ! 164: continue; ! 165: ! 166: case 'f': ! 167: defdev = argv[2]; ! 168: argv++; ! 169: argc--; ! 170: continue; ! 171: ! 172: default: ! 173: fprintf(stderr, "arff: bad option `%c'\n", *cp); ! 174: exit(1); ! 175: } ! 176: ! 177: namv = argv+2; ! 178: namc = argc-2; ! 179: if (comfun == 0) { ! 180: if (flag(u) == 0) { ! 181: fprintf(stderr, "arff: one of [%s] must be specified\n", ! 182: man); ! 183: exit(1); ! 184: } ! 185: setcom(rcmd); ! 186: } ! 187: (*comfun)(); ! 188: exit(notfound()); ! 189: } ! 190: ! 191: setcom(fun) ! 192: int (*fun)(); ! 193: { ! 194: if (comfun != 0) { ! 195: fprintf(stderr, "arff: only one of [%s] allowed\n", man); ! 196: exit(1); ! 197: } ! 198: comfun = fun; ! 199: } ! 200: ! 201: usage() ! 202: { ! 203: fprintf(stderr, "usage: ar [%s][%s] archive files ...\n", opt, man); ! 204: exit(1); ! 205: } ! 206: ! 207: notfound() ! 208: { ! 209: register i, n = 0; ! 210: ! 211: for (i = 0; i < namc; i++) ! 212: if (namv[i]) { ! 213: fprintf(stderr, "arff: %s not found\n", namv[i]); ! 214: n++; ! 215: } ! 216: return (n); ! 217: } ! 218: ! 219: tcmd() ! 220: { ! 221: register char *de, *last; ! 222: FLDOPE *lookup(), *dope; ! 223: int segnum, nleft; ! 224: register i; ! 225: register struct rt_ent *rde; ! 226: ! 227: rt_init(); ! 228: if (namc != 0) { ! 229: for (i = 0; i < namc; i++) ! 230: if (dope = lookup(namv[i])) { ! 231: rde = dope->rtdope; ! 232: (void) rtls(rde); ! 233: namv[i] = 0; ! 234: } ! 235: return; ! 236: } ! 237: for (segnum = 0; segnum != -1; ! 238: segnum = rt_dir[segnum].rd_nxtseg - 1) { ! 239: last = rt_last + segnum*2*RT_BLOCK; ! 240: for (de = ((char *)&rt_dir[segnum])+10; de <= last; ! 241: de += rt_entsiz) ! 242: if (rtls(rt(de))) { ! 243: nleft = (last-de)/rt_entsiz; ! 244: #define ENTRIES "\n%d entries remaining in directory segment %d.\n" ! 245: printf(ENTRIES, nleft, segnum+1); ! 246: break; ! 247: } ! 248: } ! 249: } ! 250: ! 251: rtls(de) ! 252: register struct rt_ent *de; ! 253: { ! 254: int month, day, year; ! 255: char name[12], ext[4]; ! 256: ! 257: switch (de->rt_stat) { ! 258: ! 259: case RT_TEMP: ! 260: if (flag(v)) ! 261: printf("Tempfile:\n"); ! 262: /* fall thru...*/ ! 263: ! 264: case RT_FILE: ! 265: case RT_PFILE: ! 266: if (!flag(v)) { ! 267: sunrad50(name, de->rt_name); ! 268: printf("%s\n", name); ! 269: break; ! 270: } ! 271: unrad50(2, de->rt_name, name); ! 272: unrad50(1, &(de->rt_name[2]), ext); ! 273: day = de->rt_date.rt_dy; ! 274: year = de->rt_date.rt_yr+72; ! 275: month = de->rt_date.rt_mo; ! 276: printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name, ! 277: ext, month, day, year, de->rt_len); ! 278: break; ! 279: ! 280: case RT_NULL: ! 281: printf("%-25.9s %d\n","<UNUSED>", de->rt_len); ! 282: break; ! 283: ! 284: case RT_ESEG: ! 285: return (1); ! 286: } ! 287: return (0); ! 288: } ! 289: ! 290: xcmd() ! 291: { ! 292: register char *de, *last; ! 293: int segnum; ! 294: char name[12]; ! 295: register int i; ! 296: ! 297: rt_init(); ! 298: if (namc != 0) { ! 299: for (i = 0; i < namc; i++) ! 300: if (rtx(namv[i]) == 0) ! 301: namv[i] = 0; ! 302: return; ! 303: } ! 304: for (segnum = 0; segnum != -1; ! 305: segnum = rt_dir[segnum].rd_nxtseg-1) ! 306: for (last = rt_last+(segnum*2*RT_BLOCK), ! 307: de = ((char *)&rt_dir[segnum])+10; de <= last; ! 308: de += rt_entsiz) { ! 309: switch (rt(de)->rt_stat) { ! 310: ! 311: case RT_ESEG: ! 312: break; /* exit loop and try next segment */ ! 313: ! 314: case RT_TEMP: ! 315: case RT_FILE: ! 316: case RT_PFILE: ! 317: sunrad50(name,rt(de)->rt_name); ! 318: (void) rtx(name); ! 319: ! 320: case RT_NULL: ! 321: default: ! 322: continue; ! 323: } ! 324: break; ! 325: } ! 326: } ! 327: ! 328: rtx(name) ! 329: char *name; ! 330: { ! 331: register FLDOPE *dope; ! 332: FLDOPE *lookup(); ! 333: register startad, count; ! 334: int file; ! 335: char buff[512]; ! 336: ! 337: ! 338: if (dope = lookup(name)) { ! 339: if (flag(v)) ! 340: (void) rtls(dope->rtdope); ! 341: else ! 342: printf("x - %s\n",name); ! 343: ! 344: if ((file = creat(name, 0666)) < 0) ! 345: return (1); ! 346: count = dope->count; ! 347: startad = dope->startad; ! 348: for( ; count > 0 ; count -= 512) { ! 349: (void) lread(startad, 512, buff); ! 350: (void) write(file, buff, 512); ! 351: startad += 512; ! 352: } ! 353: (void) close(file); ! 354: return (0); ! 355: } ! 356: return (1); ! 357: } ! 358: ! 359: rt_init() ! 360: { ! 361: static initized = 0; ! 362: register char *de, *last; ! 363: register i; ! 364: int dirnum; ! 365: char *mode; ! 366: FILE *temp_floppydes; ! 367: ! 368: if (initized) ! 369: return; ! 370: initized = 1; ! 371: if (flag(c)) { ! 372: struct stat sb; ! 373: char response[128]; ! 374: int tty; ! 375: ! 376: if (stat(defdev, &sb) >= 0 && (sb.st_mode & S_IFMT) == S_IFREG) ! 377: goto ignore; ! 378: tty = open(_PATH_TTY, O_RDWR); ! 379: #define SURE "Are you sure you want to clobber the floppy? " ! 380: (void) write(tty, SURE, sizeof (SURE)); ! 381: (void) read(tty, response, sizeof (response)); ! 382: if (*response != 'y') ! 383: exit(50); ! 384: (void) close(tty); ! 385: ignore: ! 386: ; ! 387: } ! 388: if (flag(c) || flag(d) || flag(r)) ! 389: mode = "r+"; ! 390: else ! 391: mode = "r"; ! 392: if ((temp_floppydes = fopen(defdev, mode)) == NULL) { ! 393: perror(defdev); ! 394: exit(1); ! 395: } else ! 396: floppydes = fileno(temp_floppydes); ! 397: if (!flag(c)) { ! 398: if (lread(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0])) ! 399: exit(2); ! 400: dirnum = rt_dir[0].rd_numseg; ! 401: /* check for blank/uninitialized diskette */ ! 402: if (dirnum <= 0) { ! 403: fprintf(stderr,"arff: bad directory format\n"); ! 404: exit(1); ! 405: } ! 406: if (dirnum > RT_DIRSIZE) { ! 407: fprintf(stderr,"arff: too many directory segments\n"); ! 408: exit(1); ! 409: } ! 410: for (i = 1; i < dirnum; i++) ! 411: if (lread((6+2*i)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[i])) ! 412: exit(1); ! 413: } else { ! 414: dirnum = 1; ! 415: if (flag(b)) { ! 416: rt_dir[0].rd_numseg = 31; ! 417: rt_dir[0].rd_stfile = 68; ! 418: rt_dir[0].rt_ents[0].rt_len = 20480 - 68; ! 419: } ! 420: } ! 421: ! 422: rt_entsiz = 2*rt_dir[0].rd_entpad + 14; ! 423: /* ! 424: * We assume that the directory entries have no padding. This ! 425: * may not be a valid assumption, but there are numerous point ! 426: * in the code where it assumes it is an rt_ent structure and ! 427: * not an rt_entsiz sized structure. ! 428: */ ! 429: rt_entsiz = 14; ! 430: rt_last = ((char *) &rt_dir[0]) + 10 + 1014/rt_entsiz*rt_entsiz; ! 431: rt_nleft = 0; ! 432: ! 433: for (i = 0; i < dirnum; i++) { ! 434: last = rt_last + i*2*RT_BLOCK; ! 435: for (de = ((char *)&rt_dir[i])+10; de <= last; de += rt_entsiz) ! 436: if (rt(de)->rt_stat == RT_ESEG) ! 437: break; ! 438: rt_curend[i] = rt(de); ! 439: rt_nleft += (last-de)/rt_entsiz; ! 440: } ! 441: } ! 442: ! 443: static FLDOPE result; ! 444: ! 445: FLDOPE * ! 446: lookup(name) ! 447: char *name; ! 448: { ! 449: unsigned short rname[3]; ! 450: register char *de; ! 451: int segnum; ! 452: register index; ! 453: ! 454: srad50(name,rname); ! 455: ! 456: /* ! 457: * Search for name, accumulate blocks in index ! 458: */ ! 459: rt_init(); ! 460: for (segnum = 0; segnum != -1; ! 461: segnum = rt_dir[segnum].rd_nxtseg - 1) ! 462: { ! 463: index = 0; ! 464: for (de=((char *)&rt_dir[segnum])+10; ! 465: rt(de)->rt_stat != RT_ESEG; de += rt_entsiz) ! 466: switch(rt(de)->rt_stat) { ! 467: ! 468: case RT_FILE: ! 469: case RT_PFILE: ! 470: case RT_TEMP: ! 471: if(samename(rname,rt(de)->rt_name)) { ! 472: result.count = rt(de)->rt_len * 512; ! 473: result.startad = 512* ! 474: (rt_dir[segnum].rd_stfile + index); ! 475: result.rtdope = (struct rt_ent *) de; ! 476: return (&result); ! 477: } ! 478: ! 479: case RT_NULL: ! 480: index += rt(de)->rt_len; ! 481: } ! 482: } ! 483: return ((FLDOPE *) 0); ! 484: ! 485: } ! 486: ! 487: static ! 488: samename(a, b) ! 489: u_short a[], b[]; ! 490: { ! 491: return (*a == *b && a[1] == b[1] && a[2] == b[2] ); ! 492: } ! 493: ! 494: rad50(cp, out) ! 495: register u_char *cp; ! 496: u_short *out; ! 497: { ! 498: register index, temp; ! 499: ! 500: for (index = 0; *cp; index++) { ! 501: temp = Ain1 * table[*cp++]; ! 502: if (*cp!=0) { ! 503: temp += Ain2 * table[*cp++]; ! 504: if(*cp!=0) ! 505: temp += table[*cp++]; ! 506: } ! 507: out[index] = temp; ! 508: } ! 509: } ! 510: ! 511: #define reduce(x, p, q) (x = v[p/q], p %= q); ! 512: ! 513: unrad50(count, in, cp) ! 514: u_short *in; ! 515: register char *cp; ! 516: { ! 517: register i, temp; ! 518: register u_char *v = (u_char *) val; ! 519: ! 520: for (i = 0; i < count; i++) { ! 521: temp = in[i]; ! 522: reduce(*cp++, temp, Ain1); ! 523: reduce(*cp++, temp, Ain2); ! 524: reduce(*cp++, temp, 1); ! 525: } ! 526: *cp=0; ! 527: } ! 528: ! 529: srad50(name, rname) ! 530: register char *name; ! 531: register u_short *rname; ! 532: { ! 533: register index; ! 534: register char *cp; ! 535: char file[7], ext[4]; ! 536: ! 537: /* ! 538: * Find end of pathname ! 539: */ ! 540: for (cp = name; *cp++; ) ! 541: ; ! 542: while (cp >= name && *--cp != '/') ! 543: ; ! 544: cp++; ! 545: /* ! 546: * Change to rad50 ! 547: */ ! 548: for (index = 0; *cp; ) { ! 549: file[index++] = *cp++; ! 550: if (*cp == '.') { ! 551: cp++; ! 552: break; ! 553: } ! 554: if (index >= 6) { ! 555: break; ! 556: } ! 557: } ! 558: file[index] = 0; ! 559: for (index = 0; *cp; ) { ! 560: ext[index++] = *cp++; ! 561: if (*cp == '.' || index >= 3) ! 562: break; ! 563: } ! 564: ext[index]=0; ! 565: rname[0] = rname[1] = rname[2] = 0; ! 566: rad50((u_char *)file, rname); ! 567: rad50((u_char *)ext, rname+2); ! 568: } ! 569: ! 570: sunrad50(name, rname) ! 571: u_short rname[]; ! 572: register char *name; ! 573: { ! 574: register char *cp, *cp2; ! 575: char ext[4]; ! 576: ! 577: unrad50(2, rname, name); ! 578: unrad50(1, rname + 2, ext); ! 579: /* ! 580: * Jam name and extension together with a dot ! 581: * deleting white space ! 582: */ ! 583: for (cp = name; *cp++;) ! 584: ; ! 585: --cp; ! 586: while (*--cp == ' ' && cp >= name) ! 587: ; ! 588: *++cp = '.'; ! 589: cp++; ! 590: for (cp2 = ext; *cp2 != ' ' && cp2 < ext+3;) ! 591: *cp++ = *cp2++; ! 592: *cp=0; ! 593: if (cp[-1] == '.') ! 594: cp[-1] = 0; ! 595: } ! 596: ! 597: static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789"; ! 598: ! 599: static char table[256] = { ! 600: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 601: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 602: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, ! 603: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, ! 604: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 605: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 606: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 607: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 608: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 609: 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, ! 610: 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, ! 611: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, ! 612: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 613: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, ! 614: 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ! 615: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 }; ! 616: ! 617: /* ! 618: * Logical to physical adress translation ! 619: */ ! 620: long ! 621: trans(logical) ! 622: register int logical; ! 623: { ! 624: register int sector, bytes, track; ! 625: ! 626: logical += 26*128; ! 627: bytes = (logical&127); ! 628: logical >>= 7; ! 629: sector = logical%26; ! 630: if(sector >= 13) ! 631: sector = sector*2+1; ! 632: else ! 633: sector *= 2; ! 634: sector += 26 + ((track = (logical/26))-1)*6; ! 635: sector %= 26; ! 636: return ((((track*26)+sector) << 7) + bytes); ! 637: } ! 638: ! 639: lread(startad, count, obuff) ! 640: register startad, count; ! 641: register char *obuff; ! 642: { ! 643: long trans(); ! 644: extern floppydes; ! 645: register int size = flag(m) ? 512 : 128; ! 646: int error = 0; ! 647: extern int errno; ! 648: ! 649: rt_init(); ! 650: while ((count -= size) >= 0) { ! 651: (void) lseek(floppydes, flag(m) ? ! 652: (long)startad : trans(startad), 0); ! 653: if (read(floppydes, obuff, size) != size) { ! 654: error = errno; ! 655: fprintf(stderr, "arff: read error block %d: ", ! 656: startad/size); ! 657: errno = error; ! 658: perror(""); ! 659: } ! 660: obuff += size; ! 661: startad += size; ! 662: } ! 663: return (error); ! 664: } ! 665: ! 666: lwrite(startad, count, obuff) ! 667: register startad, count; ! 668: register char *obuff; ! 669: { ! 670: long trans(); ! 671: extern floppydes; ! 672: register int size = flag(m) ? 512 : 128; ! 673: ! 674: rt_init(); ! 675: while ((count -= size) >= 0) { ! 676: (void) lseek(floppydes, flag(m) ? ! 677: (long)startad : trans(startad), 0); ! 678: if (write(floppydes, obuff, size) != size) ! 679: fprintf(stderr, "arff: write error block %d\n", ! 680: startad/size); ! 681: obuff += size; ! 682: startad += size; ! 683: } ! 684: } ! 685: ! 686: rcmd() ! 687: { ! 688: register int i; ! 689: ! 690: rt_init(); ! 691: if (namc > 0) ! 692: for (i = 0; i < namc; i++) ! 693: if (rtr(namv[i]) == 0) ! 694: namv[i] = 0; ! 695: } ! 696: ! 697: rtr(name) ! 698: char *name; ! 699: { ! 700: register FLDOPE *dope; ! 701: register struct rt_ent *de; ! 702: struct stat buf; ! 703: register struct stat *bufp = &buf; ! 704: int segnum; ! 705: char type; ! 706: ! 707: if (stat(name, bufp) < 0) { ! 708: perror(name); ! 709: return (-1); ! 710: } ! 711: type = 'a'; ! 712: if (dope = lookup(name)) { ! 713: /* can replace, no problem */ ! 714: de = dope->rtdope; ! 715: if (bufp->st_size <= (de->rt_len * 512)) { ! 716: printf("r - %s\n",name); ! 717: toflop(name, bufp->st_size, dope); ! 718: goto found; ! 719: } else { ! 720: de = dope->rtdope; ! 721: type = 'r'; ! 722: de->rt_stat = RT_NULL; ! 723: de->rt_name[0] = 0; ! 724: de->rt_name[1] = 0; ! 725: de->rt_name[2] = 0; ! 726: *((u_short *)&(de->rt_date)) = 0; ! 727: scrunch(); ! 728: } ! 729: } ! 730: /* ! 731: * Search for vacant spot ! 732: */ ! 733: for (segnum = 0; segnum != -1; ! 734: segnum = rt_dir[segnum].rd_nxtseg - 1) ! 735: { ! 736: for (de = rt_dir[segnum].rt_ents; ! 737: rt(de)->rt_stat != RT_ESEG; de++) ! 738: if ((de)->rt_stat == RT_NULL) { ! 739: if (bufp->st_size <= (de->rt_len*512)) { ! 740: printf("%c - %s\n", type, name), ! 741: mkent(de, segnum, bufp,name); ! 742: goto found; ! 743: } ! 744: continue; ! 745: } ! 746: } ! 747: if (type == 'r') ! 748: printf("%s: no slot for file, file deleted\n",name); ! 749: else ! 750: printf("%s: no slot for file\n", name); ! 751: return (-1); ! 752: ! 753: found: ! 754: if (dope = lookup(name)) { ! 755: toflop(name, bufp->st_size, dope); ! 756: return (0); ! 757: } ! 758: printf("%s: internal error, added then not found\n", name); ! 759: return (-1); ! 760: } ! 761: ! 762: mkent(de, segnum, bufp, name) ! 763: register struct rt_ent *de; ! 764: int segnum; ! 765: register struct stat *bufp; ! 766: char *name; ! 767: { ! 768: struct tm *localtime(); ! 769: register struct tm *timp; ! 770: register struct rt_ent *workp; ! 771: int count; ! 772: ! 773: count = (((bufp->st_size -1) >>9) + 1); ! 774: /* make sure there is room */ ! 775: if (de->rt_len == count) ! 776: goto overwrite; ! 777: if ((char *)rt_curend[segnum] == (rt_last + (segnum*2*RT_BLOCK))) { ! 778: /* no entries left on segment, trying adding new segment */ ! 779: if (rt_dir[0].rd_numseg > rt_dir[0].rd_lstseg) { ! 780: short newseg; ! 781: register int i; ! 782: int maxseg; ! 783: short size; ! 784: ! 785: newseg = rt_dir[0].rd_lstseg++; ! 786: rt_dir[newseg] = rt_nulldir; ! 787: rt_dir[newseg].rd_nxtseg = rt_dir[segnum].rd_nxtseg; ! 788: rt_dir[segnum].rd_nxtseg = newseg + 1; ! 789: rt_dir[newseg].rd_entpad = rt_dir[0].rd_entpad; ! 790: rt_dir[newseg].rd_numseg = rt_dir[0].rd_numseg; ! 791: size = 0; ! 792: maxseg = 0; ! 793: for(i = newseg - 1; i >= 0; i--) { ! 794: workp = rt_curend[i] - 1; ! 795: if (workp->rt_stat != RT_NULL) ! 796: continue; ! 797: if (workp->rt_len < size) ! 798: continue; ! 799: size = workp->rt_len; ! 800: maxseg = i; ! 801: } ! 802: size = 0; ! 803: for (workp = &rt_dir[maxseg].rt_ents[0]; ! 804: workp->rt_stat != RT_ESEG; workp++) { ! 805: size += workp->rt_len; ! 806: } ! 807: workp--; ! 808: rt_dir[newseg].rt_ents[0].rt_len = workp->rt_len; ! 809: rt_dir[newseg].rd_stfile = ! 810: rt_dir[maxseg].rd_stfile + size - workp->rt_len; ! 811: workp->rt_len = 0; ! 812: rt_curend[newseg] = &rt_dir[newseg].rt_ents[1]; ! 813: lwrite(6*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[0]); ! 814: if (segnum != 0) ! 815: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, ! 816: (char *)&rt_dir[segnum]); ! 817: lwrite((6+newseg*2)*RT_BLOCK, 2*RT_BLOCK, ! 818: (char *)&rt_dir[newseg]); ! 819: segnum = newseg; ! 820: de = &rt_dir[newseg].rt_ents[0]; ! 821: } else { ! 822: fprintf(stderr, "All directory segments full on %s\n", ! 823: defdev); ! 824: exit(1); ! 825: } ! 826: } ! 827: /* copy directory entries up */ ! 828: for (workp = rt_curend[segnum]+1; workp > de; workp--) ! 829: *workp = workp[-1]; ! 830: de[1].rt_len -= count; ! 831: de->rt_len = count; ! 832: rt_curend[segnum]++; ! 833: rt_nleft--; ! 834: ! 835: overwrite: ! 836: srad50(name,de->rt_name); ! 837: timp = localtime(&bufp->st_mtime); ! 838: de->rt_date.rt_dy = timp->tm_mday; ! 839: de->rt_date.rt_mo = timp->tm_mon + 1; ! 840: de->rt_date.rt_yr = timp->tm_year - 72; ! 841: de->rt_stat = RT_FILE; ! 842: de->rt_pad = 0; ! 843: de->rt_chan = 0; ! 844: de->rt_job = 0; ! 845: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, (char *)&rt_dir[segnum]); ! 846: } ! 847: ! 848: toflop(name, ocount, dope) ! 849: char *name; ! 850: register FLDOPE *dope; ! 851: long ocount; ! 852: { ! 853: register file, n, startad = dope->startad, count = ocount; ! 854: char buff[512]; ! 855: ! 856: file = open(name, 0); ! 857: if (file < 0) { ! 858: fprintf(stderr, "arff: couldn't open %s\n",name); ! 859: exit(1); ! 860: } ! 861: for( ; count >= 512; count -= 512) { ! 862: (void) read(file, buff, 512); ! 863: lwrite(startad, 512, buff); ! 864: startad += 512; ! 865: } ! 866: (void) read(file, buff, count); ! 867: (void) close(file); ! 868: if (count <= 0) ! 869: return; ! 870: for (n = count; n < 512; n ++) ! 871: buff[n] = 0; ! 872: lwrite(startad, 512, buff); ! 873: count = (dope->rtdope->rt_len*512-ocount)/512 ; ! 874: if (count <= 0) ! 875: return; ! 876: for ( ; count > 0 ; count--) { ! 877: startad += 512; ! 878: lwrite(startad, 512, zeroes); ! 879: } ! 880: } ! 881: ! 882: dcmd() ! 883: { ! 884: register int i; ! 885: ! 886: rt_init(); ! 887: if (namc) ! 888: for (i = 0; i < namc; i++) ! 889: if (rtk(namv[i])==0) ! 890: namv[i]=0; ! 891: if (dirdirty) ! 892: scrunch(); ! 893: } ! 894: ! 895: rtk(name) ! 896: char *name; ! 897: { ! 898: register FLDOPE *dope; ! 899: register struct rt_ent *de; ! 900: FLDOPE *lookup(); ! 901: ! 902: if (dope = lookup(name)) { ! 903: printf("d - %s\n",name); ! 904: de = dope->rtdope; ! 905: de->rt_stat = RT_NULL; ! 906: de->rt_name[0] = 0; ! 907: de->rt_name[1] = 0; ! 908: de->rt_name[2] = 0; ! 909: *((u_short *)&(de->rt_date)) = 0; ! 910: dirdirty = 1; ! 911: return (0); ! 912: } ! 913: return (1); ! 914: } ! 915: ! 916: scrunch() ! 917: { ! 918: register struct rt_ent *de , *workp; ! 919: register segnum; ! 920: ! 921: for (segnum = 0; segnum != -1; ! 922: segnum = rt_dir[segnum].rd_nxtseg - 1) { ! 923: for (de = rt_dir[segnum].rt_ents; de <= rt_curend[segnum]; de++) ! 924: if (de->rt_stat == RT_NULL && ! 925: (de+1)->rt_stat == RT_NULL) { ! 926: (de+1)->rt_len += de->rt_len; ! 927: for (workp=de; workp<rt_curend[segnum]; workp++) ! 928: *workp = workp[1]; ! 929: de--; ! 930: rt_curend[segnum]--; ! 931: rt_nleft++; ! 932: } ! 933: lwrite((6+segnum*2)*RT_BLOCK, 2*RT_BLOCK, ! 934: (char *)&rt_dir[segnum]); ! 935: } ! 936: dirdirty = 0; ! 937: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.