| 1 | static char *sccsid = "@(#)arff.c 4.2 (Berkeley) %G%"; |
| 2 | #include <sys/types.h> |
| 3 | #include <sys/stat.h> |
| 4 | #include <time.h> |
| 5 | #include <signal.h> |
| 6 | #include <stdio.h> |
| 7 | #define dbprintf printf |
| 8 | struct rt_dat { |
| 9 | unsigned short int rt_yr:5; /*Year - 1972 */ |
| 10 | unsigned short int rt_dy:5; /*day */ |
| 11 | unsigned short int rt_mo:5; /*month */ |
| 12 | }; |
| 13 | struct rt_axent { |
| 14 | char rt_sent[14]; |
| 15 | }; |
| 16 | |
| 17 | struct rt_ent { |
| 18 | char rt_pad; /*unusued */ |
| 19 | char rt_stat; /*Type of entry, or end of seg*/ |
| 20 | unsigned short rt_name[3]; /*Name, 3 words in rad50 form */ |
| 21 | short rt_len; /*Length of file */ |
| 22 | char rt_chan; /*Only used in temporary files*/ |
| 23 | char rt_job; /*Only used in temporary files*/ |
| 24 | struct rt_dat rt_date; /*Creation Date */ |
| 25 | }; |
| 26 | #define RT_TEMP 1 |
| 27 | #define RT_NULL 2 |
| 28 | #define RT_FILE 4 |
| 29 | #define RT_ESEG 8 |
| 30 | #define RT_BLOCK 512 |
| 31 | struct rt_head { |
| 32 | short rt_numseg; /*number of segments available*/ |
| 33 | short rt_nxtseg; /*segment no of next log. seg */ |
| 34 | short rt_lstseg; /*highest seg currenltly open */ |
| 35 | unsigned short rt_entpad; /*extra words/dir. entry */ |
| 36 | short rt_stfile; /*block no where files begin */ |
| 37 | }; |
| 38 | struct rt_dir { |
| 39 | struct rt_head rt_axhead; |
| 40 | struct rt_ent rt_ents[72]; |
| 41 | char _dirpad[6]; |
| 42 | }; |
| 43 | extern struct rt_dir rt_dir; |
| 44 | extern int rt_entsiz; |
| 45 | extern int floppydes; |
| 46 | extern char *rt_last; |
| 47 | typedef struct fldope { |
| 48 | int startad; |
| 49 | int count; |
| 50 | struct rt_ent *rtdope; |
| 51 | } FLDOPE; |
| 52 | FLDOPE *lookup(); |
| 53 | #define rt(p) ((struct rt_ent *) p ) |
| 54 | #define Ain1 03100 |
| 55 | #define Ain2 050 |
| 56 | #define flag(c) (flg[(c) - 'a']) |
| 57 | |
| 58 | char *man = { "rxtd" }; |
| 59 | |
| 60 | char zeroes[512]; |
| 61 | extern char *val; |
| 62 | extern char table[256]; |
| 63 | struct rt_dir rt_dir = {{4,0,1,0,14},{0,RT_NULL,{0,0,0},494,0}, {0,RT_ESEG}}; |
| 64 | int rt_entsiz; |
| 65 | int rt_nleft; |
| 66 | struct rt_ent *rt_curend; |
| 67 | int floppydes; |
| 68 | int dirdirty; |
| 69 | char *rt_last; |
| 70 | char *defdev = "/dev/floppy"; |
| 71 | |
| 72 | char *opt = { "vf" }; |
| 73 | |
| 74 | int signum[] = {SIGHUP, SIGINT, SIGQUIT, 0}; |
| 75 | long lseek(); |
| 76 | int rcmd(); |
| 77 | int dcmd(); |
| 78 | int xcmd(); |
| 79 | int tcmd(); |
| 80 | int (*comfun)(); |
| 81 | char flg[26]; |
| 82 | char **namv; |
| 83 | int namc; |
| 84 | int file; |
| 85 | |
| 86 | |
| 87 | main(argc, argv) |
| 88 | char *argv[]; |
| 89 | { |
| 90 | register char *cp; |
| 91 | |
| 92 | /*register i; |
| 93 | for(i=0; signum[i]; i++) |
| 94 | if(signal(signum[i], SIG_IGN) != SIG_IGN) |
| 95 | signal(signum[i], sigdone);*/ |
| 96 | if(argc < 2) |
| 97 | usage(); |
| 98 | cp = argv[1]; |
| 99 | for(cp = argv[1]; *cp; cp++) |
| 100 | switch(*cp) { |
| 101 | case 'm': |
| 102 | case 'v': |
| 103 | case 'u': |
| 104 | case 'w': |
| 105 | flg[*cp - 'a']++; |
| 106 | continue; |
| 107 | case 'c': |
| 108 | { |
| 109 | #define SURE "Are you sure you want to clobber the floppy?\n" |
| 110 | int tty; |
| 111 | char response[128]; |
| 112 | tty = open("/dev/tty",2); |
| 113 | write(tty,SURE,sizeof(SURE)); |
| 114 | read(tty,response,128); |
| 115 | if(*response!='y') |
| 116 | exit(50); |
| 117 | flag('c')++; |
| 118 | close(tty); |
| 119 | } |
| 120 | dirdirty++; |
| 121 | continue; |
| 122 | |
| 123 | case 'r': |
| 124 | setcom(rcmd); |
| 125 | flag('r')++; |
| 126 | continue; |
| 127 | |
| 128 | case 'd': |
| 129 | setcom(dcmd); |
| 130 | flag('d')++; |
| 131 | continue; |
| 132 | |
| 133 | case 'x': |
| 134 | setcom(xcmd); |
| 135 | continue; |
| 136 | |
| 137 | case 't': |
| 138 | setcom(tcmd); |
| 139 | continue; |
| 140 | |
| 141 | case 'f': |
| 142 | defdev = argv[2]; |
| 143 | argv++; |
| 144 | argc--; |
| 145 | continue; |
| 146 | |
| 147 | |
| 148 | default: |
| 149 | fprintf(stderr, "arff: bad option `%c'\n", *cp); |
| 150 | exit(1); |
| 151 | } |
| 152 | namv = argv+2; |
| 153 | namc = argc-2; |
| 154 | if(comfun == 0) { |
| 155 | if(flg['u'-'a'] == 0) { |
| 156 | fprintf(stderr, "arff: one of [%s] must be specified\n", man); |
| 157 | exit(1); |
| 158 | } |
| 159 | setcom(rcmd); |
| 160 | } |
| 161 | (*comfun)(); |
| 162 | exit(notfound()); |
| 163 | } |
| 164 | |
| 165 | setcom(fun) |
| 166 | int (*fun)(); |
| 167 | { |
| 168 | |
| 169 | if(comfun != 0) { |
| 170 | fprintf(stderr, "arff: only one of [%s] allowed\n", man); |
| 171 | exit(1); |
| 172 | } |
| 173 | comfun = fun; |
| 174 | } |
| 175 | |
| 176 | |
| 177 | |
| 178 | |
| 179 | |
| 180 | |
| 181 | |
| 182 | |
| 183 | usage() |
| 184 | { |
| 185 | printf("usage: ar [%s][%s] archive files ...\n", opt, man); |
| 186 | exit(1); |
| 187 | } |
| 188 | |
| 189 | |
| 190 | |
| 191 | notfound() |
| 192 | { |
| 193 | register i, n; |
| 194 | |
| 195 | n = 0; |
| 196 | for(i=0; i<namc; i++) |
| 197 | if(namv[i]) { |
| 198 | fprintf(stderr, "arff: %s not found\n", namv[i]); |
| 199 | n++; |
| 200 | } |
| 201 | return(n); |
| 202 | } |
| 203 | |
| 204 | |
| 205 | |
| 206 | phserr() |
| 207 | { |
| 208 | |
| 209 | fprintf(stderr, "arff: phase error on %s\n", file); |
| 210 | } |
| 211 | |
| 212 | mesg(c) |
| 213 | { |
| 214 | |
| 215 | if(flg['v'-'a']) |
| 216 | if(c != 'c' || flg['v'-'a'] > 1) |
| 217 | printf("%c - %s\n", c, file); |
| 218 | } |
| 219 | |
| 220 | tcmd() |
| 221 | { |
| 222 | register char *de; |
| 223 | FLDOPE *lookup(), *dope; |
| 224 | int nleft; register i; |
| 225 | register struct rt_ent *rde; |
| 226 | |
| 227 | rt_init(); |
| 228 | if(namc==0) |
| 229 | for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) { |
| 230 | if(rtls(rt(de))) { |
| 231 | nleft = (rt_last - de) / rt_entsiz; |
| 232 | printf("\n\n%d entries remaining.\n",nleft); |
| 233 | break; |
| 234 | } |
| 235 | } |
| 236 | else |
| 237 | for(i = 0; i < namc; i++) { |
| 238 | if(dope = lookup(namv[i])) { |
| 239 | rde = dope->rtdope; |
| 240 | rtls(rde); |
| 241 | namv[i] = 0; |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | rtls(de) |
| 246 | register struct rt_ent *de; |
| 247 | { |
| 248 | int month,day,year; |
| 249 | char name[12], ext[4]; |
| 250 | |
| 251 | if(flg['v'-'a']) |
| 252 | switch(de->rt_stat) { |
| 253 | case RT_TEMP: |
| 254 | printf("Tempfile:\n"); |
| 255 | case RT_FILE: |
| 256 | unrad50(2,de->rt_name,name); |
| 257 | unrad50(1,&(de->rt_name[2]),ext); |
| 258 | day = de->rt_date.rt_dy; |
| 259 | year = de->rt_date.rt_yr + 72; |
| 260 | month = de->rt_date.rt_mo; |
| 261 | printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name, |
| 262 | ext,month,day,year,de->rt_len); |
| 263 | break; |
| 264 | |
| 265 | case RT_NULL: |
| 266 | printf("%-25.9s %d\n","<UNUSED>",de->rt_len); |
| 267 | break; |
| 268 | |
| 269 | case RT_ESEG: |
| 270 | return(1); |
| 271 | } |
| 272 | else { |
| 273 | switch(de->rt_stat) { |
| 274 | case RT_TEMP: |
| 275 | case RT_FILE: |
| 276 | sunrad50(name,de->rt_name); |
| 277 | printf(name);putchar('\n'); |
| 278 | break; |
| 279 | |
| 280 | case RT_ESEG: |
| 281 | return(1); |
| 282 | |
| 283 | case RT_NULL: |
| 284 | ; |
| 285 | } |
| 286 | } |
| 287 | return(0); |
| 288 | } |
| 289 | xcmd() |
| 290 | { |
| 291 | register char *de; |
| 292 | char name[12]; |
| 293 | register int i; |
| 294 | |
| 295 | rt_init(); |
| 296 | if(namc==0) |
| 297 | for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) { |
| 298 | sunrad50(name,rt(de)->rt_name); |
| 299 | rtx(name); |
| 300 | } |
| 301 | |
| 302 | else |
| 303 | for(i = 0; i < namc; i++) |
| 304 | if(rtx(namv[i])==0) namv[i] = 0; |
| 305 | } |
| 306 | rtx(name) |
| 307 | char *name; |
| 308 | { |
| 309 | register FLDOPE *dope; |
| 310 | FLDOPE *lookup(); |
| 311 | register startad, count; |
| 312 | int file; char buff[512]; |
| 313 | |
| 314 | |
| 315 | if(dope = lookup(name)) { |
| 316 | if(flg['v' - 'a']) |
| 317 | rtls(dope->rtdope); |
| 318 | else |
| 319 | printf("x - %s\n",name); |
| 320 | |
| 321 | file = creat(name, 0666); |
| 322 | if(file < 0) return(1); |
| 323 | count = dope->count; |
| 324 | startad = dope->startad; |
| 325 | for( ; count > 0 ; count -= 512) { |
| 326 | lread(startad,512,buff); |
| 327 | write(file,buff,512); |
| 328 | startad += 512; |
| 329 | } |
| 330 | close(file); |
| 331 | return(0); |
| 332 | } |
| 333 | return(1); |
| 334 | } |
| 335 | rt_init() |
| 336 | { |
| 337 | static initized = 0; |
| 338 | register char *de; |
| 339 | int mode; |
| 340 | |
| 341 | if(initized) return; |
| 342 | initized = 1; |
| 343 | if(flag('c') || flag('d') || flag('r')) |
| 344 | mode = 2; |
| 345 | else |
| 346 | mode = 0; |
| 347 | if((floppydes = open(defdev,mode)) < 0) |
| 348 | dbprintf("Floppy open failed\n"); |
| 349 | if(flag('c')==0) |
| 350 | lread(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir); |
| 351 | |
| 352 | rt_entsiz = 2*rt_dir.rt_axhead.rt_entpad + 14; |
| 353 | rt_entsiz = 14; |
| 354 | rt_last = ((char *) &rt_dir) + 10 + 1014/rt_entsiz*rt_entsiz; |
| 355 | for(de=((char *)&rt_dir)+10; de <= rt_last; de += rt_entsiz) { |
| 356 | if(rt(de)->rt_stat==RT_ESEG) break; |
| 357 | } |
| 358 | rt_curend = rt(de); |
| 359 | rt_nleft = (rt_last - de) / rt_entsiz; |
| 360 | } |
| 361 | |
| 362 | static FLDOPE result; |
| 363 | FLDOPE * |
| 364 | lookup(name) |
| 365 | char * name; |
| 366 | { |
| 367 | unsigned short rname[3]; |
| 368 | register char *de; |
| 369 | register index; |
| 370 | |
| 371 | srad50(name,rname); |
| 372 | |
| 373 | /* |
| 374 | * Search for name, accumulate blocks in index |
| 375 | */ |
| 376 | rt_init(); |
| 377 | index = 0; |
| 378 | for(de = ((char *) &rt_dir) + 10; de <= rt_last; de += rt_entsiz) { |
| 379 | switch(rt(de)->rt_stat) { |
| 380 | case RT_ESEG: |
| 381 | return((FLDOPE *) 0); |
| 382 | case RT_FILE: |
| 383 | case RT_TEMP: |
| 384 | if(samename(rname,rt(de)->rt_name)) |
| 385 | goto found; |
| 386 | case RT_NULL: |
| 387 | index += rt(de)->rt_len; |
| 388 | } |
| 389 | } |
| 390 | return((FLDOPE *) 0); |
| 391 | found: result.count = rt(de)->rt_len * 512; |
| 392 | result.startad = 512 * (rt_dir.rt_axhead.rt_stfile + index); |
| 393 | result.rtdope = (struct rt_ent *) de; |
| 394 | return(&result); |
| 395 | } |
| 396 | static |
| 397 | samename(a,b) |
| 398 | unsigned short a[3],b[3]; |
| 399 | { |
| 400 | return( a[0]==b[0] && a[1]==b[1] && a[2]==b[2] ); |
| 401 | } |
| 402 | |
| 403 | |
| 404 | rad50(cp,out) |
| 405 | register unsigned char *cp; |
| 406 | unsigned short *out; |
| 407 | { |
| 408 | register index; |
| 409 | register temp; |
| 410 | |
| 411 | for(index = 0;*cp; index++) { |
| 412 | |
| 413 | temp = Ain1 * table[*cp++]; |
| 414 | if(*cp!=0) { |
| 415 | temp += Ain2 * table[*cp++]; |
| 416 | |
| 417 | if(*cp!=0) |
| 418 | temp += table[*cp++]; |
| 419 | } |
| 420 | |
| 421 | out[index] = temp; |
| 422 | } |
| 423 | } |
| 424 | #define reduce(x,p,q) \ |
| 425 | (x = v[p/q], p %= q); |
| 426 | |
| 427 | unrad50(count,in,cp) |
| 428 | unsigned short *in; |
| 429 | register char *cp; |
| 430 | { |
| 431 | register i, temp; register unsigned char *v = (unsigned char *) val; |
| 432 | |
| 433 | for(i = 0; i < count; i++) { |
| 434 | temp = in[i]; |
| 435 | |
| 436 | reduce (*cp++,temp,Ain1); |
| 437 | reduce (*cp++,temp,Ain2); |
| 438 | reduce (*cp++,temp,1); |
| 439 | } |
| 440 | *cp=0; |
| 441 | } |
| 442 | |
| 443 | srad50(name,rname) |
| 444 | register char * name; |
| 445 | register unsigned short *rname; |
| 446 | { |
| 447 | register index; register char *cp; |
| 448 | char file[7],ext[4]; |
| 449 | /* |
| 450 | * Find end of pathname |
| 451 | */ |
| 452 | for(cp = name; *cp++; ); |
| 453 | while(cp >= name && *--cp != '/'); |
| 454 | cp++; |
| 455 | /* |
| 456 | * Change to rad50 |
| 457 | * |
| 458 | */ |
| 459 | for(index = 0; *cp; ){ |
| 460 | file[index++] = *cp++; |
| 461 | if(*cp=='.') { |
| 462 | cp++; |
| 463 | break; |
| 464 | } |
| 465 | if(index>=6) { |
| 466 | break; |
| 467 | } |
| 468 | } |
| 469 | file[index] = 0; |
| 470 | for(index = 0; *cp; ){ |
| 471 | ext[index++] = *cp++; |
| 472 | if(*cp=='.' || index>=3) { |
| 473 | break; |
| 474 | } |
| 475 | } |
| 476 | ext[index]=0; |
| 477 | rname[0] = 0; |
| 478 | rname[1] = 0; |
| 479 | rname[2] = 0; |
| 480 | rad50((unsigned char *)file,rname); |
| 481 | rad50((unsigned char *)ext,rname+2); |
| 482 | } |
| 483 | sunrad50(name,rname) |
| 484 | unsigned short rname[3]; |
| 485 | register char *name; |
| 486 | { |
| 487 | register char *cp, *cp2; |
| 488 | char ext[4]; |
| 489 | |
| 490 | unrad50(2,rname,name); |
| 491 | unrad50(1,rname + 2,ext); |
| 492 | /* Jam name and extension together with a dot |
| 493 | deleting white space */ |
| 494 | for(cp = name; *cp++;);--cp; while(*--cp==' ' && cp>=name); |
| 495 | *++cp = '.';cp++; |
| 496 | for(cp2=ext; *cp2!=' ' && cp2 < ext + 3;) { |
| 497 | *cp++ = *cp2++; |
| 498 | } |
| 499 | *cp=0; |
| 500 | if(cp[-1]=='.') cp[-1] = 0; |
| 501 | } |
| 502 | |
| 503 | static char *oval = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.@0123456789"; |
| 504 | static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789"; |
| 505 | static char table[256] = { |
| 506 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, |
| 507 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, |
| 508 | 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, |
| 509 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, |
| 510 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 511 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, |
| 512 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 513 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, |
| 514 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, |
| 515 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, |
| 516 | 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, |
| 517 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, |
| 518 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 519 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, |
| 520 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 521 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 }; |
| 522 | |
| 523 | long trans(logical) |
| 524 | register int logical; |
| 525 | { |
| 526 | /* Logical to physical adress translation */ |
| 527 | register int sector, bytes, track; |
| 528 | |
| 529 | logical += 26 * 128; |
| 530 | bytes = (logical & 127); |
| 531 | logical >>= 7; |
| 532 | sector = logical % 26; |
| 533 | if(sector >= 13) |
| 534 | sector = sector *2 +1; |
| 535 | else |
| 536 | sector *= 2; |
| 537 | sector += 26 + ((track = (logical / 26)) - 1) * 6; |
| 538 | sector %= 26; |
| 539 | return( (((track *26) + sector) << 7) + bytes); |
| 540 | } |
| 541 | lread(startad,count,obuff) |
| 542 | register startad, count; |
| 543 | register char * obuff; |
| 544 | { |
| 545 | long trans(); |
| 546 | extern floppydes; |
| 547 | rt_init(); |
| 548 | if(flg['m'-'a']==0) |
| 549 | while( (count -= 128) >= 0) { |
| 550 | lseek(floppydes, trans(startad), 0); |
| 551 | read(floppydes,obuff,128); |
| 552 | obuff += 128; |
| 553 | startad += 128; |
| 554 | } |
| 555 | else |
| 556 | while( (count -= 512) >= 0) { |
| 557 | lseek(floppydes,(long) (startad), 0); |
| 558 | read(floppydes,obuff,512); |
| 559 | obuff += 512; |
| 560 | startad += 512; |
| 561 | } |
| 562 | } |
| 563 | lwrite(startad,count,obuff) |
| 564 | register startad, count; |
| 565 | register char * obuff; |
| 566 | { |
| 567 | long trans(); |
| 568 | extern floppydes; |
| 569 | rt_init(); |
| 570 | if(flg['m'-'a']==0) |
| 571 | while( (count -= 128) >= 0) { |
| 572 | lseek(floppydes, trans(startad), 0); |
| 573 | write(floppydes,obuff,128); |
| 574 | obuff += 128; |
| 575 | startad += 128; |
| 576 | } |
| 577 | else |
| 578 | while( (count -= 512) >= 0) { |
| 579 | lseek(floppydes,(long) (startad), 0); |
| 580 | write(floppydes,obuff,512); |
| 581 | obuff += 512; |
| 582 | startad += 512; |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | rcmd() |
| 587 | { |
| 588 | register int i; |
| 589 | |
| 590 | rt_init(); |
| 591 | if(namc>0) |
| 592 | for(i = 0; i < namc; i++) |
| 593 | if(rtr(namv[i])==0) namv[i]=0; |
| 594 | |
| 595 | |
| 596 | } |
| 597 | |
| 598 | rtr(name) |
| 599 | char *name; |
| 600 | { |
| 601 | register FLDOPE *dope; register struct rt_ent *de; |
| 602 | struct stat buf; register struct stat *bufp = &buf; |
| 603 | |
| 604 | if(stat(name,bufp)<0) return(1); |
| 605 | if(dope = lookup(name)) { |
| 606 | /* can replace, no problem */ |
| 607 | de = dope->rtdope; |
| 608 | if(bufp->st_size <= (de->rt_len * 512)) |
| 609 | printf("r - %s\n",name), |
| 610 | toflop(name,bufp->st_size,dope); |
| 611 | else { |
| 612 | printf("%s will not fit in currently used file on floppy\n",name); |
| 613 | return(1); |
| 614 | } |
| 615 | } else { |
| 616 | /* Search for vacant spot */ |
| 617 | for(de = rt_dir.rt_ents; (char *) de <= rt_last; de++) { |
| 618 | switch((de)->rt_stat) { |
| 619 | case RT_NULL: |
| 620 | if(bufp->st_size <= (de->rt_len * 512)) { |
| 621 | printf("a - %s\n",name), |
| 622 | mkent(de,bufp,name); |
| 623 | goto found; |
| 624 | } |
| 625 | continue; |
| 626 | case RT_ESEG: |
| 627 | return(3); |
| 628 | } |
| 629 | } |
| 630 | return(5); |
| 631 | } |
| 632 | found: if(dope=lookup(name)) { |
| 633 | toflop(name,bufp->st_size,dope); |
| 634 | return(0); |
| 635 | } |
| 636 | return(7); |
| 637 | |
| 638 | } |
| 639 | mkent(de,bufp,name) |
| 640 | register struct rt_ent *de; |
| 641 | register struct stat *bufp; |
| 642 | char *name; |
| 643 | { |
| 644 | struct tm *localtime(); register struct tm *timp; |
| 645 | register struct rt_ent *workp; int count; |
| 646 | |
| 647 | count = (((bufp->st_size -1) >>9) + 1); |
| 648 | /* Make sure there is room */ |
| 649 | if(de->rt_len==count) |
| 650 | goto overwrite; |
| 651 | if(rt_nleft==0) { |
| 652 | if(flg['o'-'a']) |
| 653 | goto overwrite; |
| 654 | fprintf(stderr,"Directory full on %s\n",defdev); |
| 655 | exit(1); |
| 656 | } |
| 657 | /* copy directory entries up */ |
| 658 | for(workp = rt_curend+1; workp > de; workp--) |
| 659 | *workp = workp[-1]; |
| 660 | de[1].rt_len -= count; |
| 661 | de->rt_len = count; |
| 662 | rt_curend++; |
| 663 | rt_nleft--; |
| 664 | overwrite: |
| 665 | srad50(name,de->rt_name); |
| 666 | timp = localtime(&bufp->st_mtime); |
| 667 | de->rt_date.rt_dy = timp->tm_mday + 1; |
| 668 | de->rt_date.rt_mo = timp->tm_mon + 1; |
| 669 | de->rt_date.rt_yr = timp->tm_year - 72; |
| 670 | de->rt_stat = RT_FILE; |
| 671 | de->rt_pad = 0; |
| 672 | de->rt_chan = 0; |
| 673 | de->rt_job = 0; |
| 674 | lwrite(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir); |
| 675 | |
| 676 | } |
| 677 | |
| 678 | toflop(name,ocount,dope) |
| 679 | char *name; |
| 680 | register FLDOPE *dope; |
| 681 | long ocount; |
| 682 | { |
| 683 | register file, n, startad = dope->startad, count = ocount; |
| 684 | char buff[512]; |
| 685 | |
| 686 | file = open(name,0); |
| 687 | if(file < 0) { |
| 688 | printf("arff: couldn't open %s\n",name);exit(1);} |
| 689 | for( ; count >= 512; count -= 512) { |
| 690 | read(file,buff,512); |
| 691 | lwrite(startad,512,buff); |
| 692 | startad += 512; |
| 693 | } |
| 694 | read(file,buff,count); |
| 695 | close(file); |
| 696 | if(count <= 0) return; |
| 697 | for(n = count; n < 512; n ++) buff[n] = 0; |
| 698 | lwrite(startad,512,buff); |
| 699 | count = (dope->rtdope->rt_len * 512 - ocount) / 512 ; |
| 700 | if(count <= 0) return; |
| 701 | for( ; count > 0 ; count--) { |
| 702 | startad += 512; |
| 703 | lwrite(startad,512,zeroes); |
| 704 | } |
| 705 | |
| 706 | } |
| 707 | dcmd() |
| 708 | { |
| 709 | register int i; |
| 710 | |
| 711 | rt_init(); |
| 712 | if(namc) |
| 713 | for(i = 0; i < namc; i++) |
| 714 | if(rtk(namv[i])==0) namv[i]=0; |
| 715 | if(dirdirty) |
| 716 | scrunch(); |
| 717 | |
| 718 | } |
| 719 | rtk(name) |
| 720 | char *name; |
| 721 | { |
| 722 | register FLDOPE *dope; |
| 723 | register struct rt_ent *de; |
| 724 | FLDOPE *lookup(); |
| 725 | |
| 726 | if(dope = lookup(name)) { |
| 727 | printf("d - %s\n",name); |
| 728 | de = dope->rtdope; |
| 729 | de->rt_stat = RT_NULL; |
| 730 | de->rt_name[0] = 0; |
| 731 | de->rt_name[1] = 0; |
| 732 | de->rt_name[2] = 0; |
| 733 | * ((unsigned short *) & (de->rt_date)) = 0; |
| 734 | dirdirty = 1; |
| 735 | return(0); |
| 736 | } |
| 737 | return(1); |
| 738 | } |
| 739 | scrunch() { |
| 740 | register struct rt_ent *de = rt_dir.rt_ents, *workp; |
| 741 | for(de = rt_dir.rt_ents; de <= rt_curend; de++) { |
| 742 | if(de->rt_stat==RT_NULL && de[1].rt_stat==RT_NULL) { |
| 743 | (de+1)->rt_len += de->rt_len; |
| 744 | for(workp = de; workp < rt_curend; workp++) |
| 745 | *workp = workp[1]; |
| 746 | de--; |
| 747 | rt_curend--; |
| 748 | rt_nleft++; |
| 749 | } |
| 750 | } |
| 751 | lwrite(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir); |
| 752 | } |