| 1 | static char *sccsid = "@(#)ar11.c 4.3 (Berkeley) %G%"; |
| 2 | /* ar11 - archiver for PDP-11 formatted archives */ |
| 3 | |
| 4 | #include <signal.h> |
| 5 | #include <stdio.h> |
| 6 | #include <sys/types.h> |
| 7 | #include <sys/stat.h> |
| 8 | #define ARMAG ((short)0177545) |
| 9 | struct ar_hdr { |
| 10 | char ar_name[14]; |
| 11 | short ar_sdate[2]; |
| 12 | char ar_uid; |
| 13 | char ar_gid; |
| 14 | short ar_mode; |
| 15 | short ar_ssize[2]; |
| 16 | }; |
| 17 | long ar_date; |
| 18 | long ar_size; |
| 19 | |
| 20 | #ifdef vax |
| 21 | #define fixshort(s) (s) |
| 22 | #define mklong(sp) (((sp)[0] << 16) + (sp)[1]) |
| 23 | #define unmklong(sp,l) { sp[0] = l >> 16; sp[1] = l & 0177777; } |
| 24 | #define fixhdr(hdr) (hdr) |
| 25 | #endif |
| 26 | #ifdef mc68000 |
| 27 | #define fixshort(s) ((short)(((s>>8)&0377)+((s&0377)<<8))) |
| 28 | #define mklong(sp) (((sp)[0] << 16) + (sp)[1]) |
| 29 | #define unmklong(sp,l) { sp[0] = l >> 16; sp[1] = l & 0177777; } |
| 30 | #define fixhdr(hdr) swaphdr(hdr) |
| 31 | struct ar_hdr swaphdr(); |
| 32 | #endif |
| 33 | |
| 34 | struct stat stbuf; |
| 35 | struct ar_hdr arbuf; |
| 36 | |
| 37 | #define SKIP 1 |
| 38 | #define IODD 2 |
| 39 | #define OODD 4 |
| 40 | #define HEAD 8 |
| 41 | |
| 42 | char *man = { "mrxtdp" }; |
| 43 | char *opt = { "uvnbai" }; |
| 44 | |
| 45 | int signum[] = {SIGHUP, SIGINT, SIGQUIT, 0}; |
| 46 | int sigdone(); |
| 47 | int rcmd(); |
| 48 | int dcmd(); |
| 49 | int xcmd(); |
| 50 | int tcmd(); |
| 51 | int pcmd(); |
| 52 | int mcmd(); |
| 53 | int (*comfun)(); |
| 54 | char flg[26]; |
| 55 | char **namv; |
| 56 | int namc; |
| 57 | char *arnam; |
| 58 | char *ponam; |
| 59 | char *tfnam; |
| 60 | char *tf1nam; |
| 61 | char *tf2nam; |
| 62 | char *file; |
| 63 | char name[16]; |
| 64 | int af; |
| 65 | int tf; |
| 66 | int tf1; |
| 67 | int tf2; |
| 68 | int bastate; |
| 69 | char buf[512]; |
| 70 | |
| 71 | char *trim(); |
| 72 | char *mktemp(); |
| 73 | char *ctime(); |
| 74 | |
| 75 | main(argc, argv) |
| 76 | char *argv[]; |
| 77 | { |
| 78 | register i; |
| 79 | register char *cp; |
| 80 | |
| 81 | for(i=0; signum[i]; i++) |
| 82 | if(signal(signum[i], SIG_IGN) != SIG_IGN) |
| 83 | signal(signum[i], sigdone); |
| 84 | if(argc < 3) |
| 85 | usage(); |
| 86 | cp = argv[1]; |
| 87 | for(cp = argv[1]; *cp; cp++) |
| 88 | switch(*cp) { |
| 89 | case 'c': |
| 90 | case 'v': |
| 91 | case 'u': |
| 92 | case 'n': |
| 93 | case 'a': |
| 94 | case 'b': |
| 95 | case 'i': |
| 96 | flg[*cp - 'a']++; |
| 97 | continue; |
| 98 | |
| 99 | case 'r': |
| 100 | setcom(rcmd); |
| 101 | continue; |
| 102 | |
| 103 | case 'd': |
| 104 | setcom(dcmd); |
| 105 | continue; |
| 106 | |
| 107 | case 'x': |
| 108 | setcom(xcmd); |
| 109 | continue; |
| 110 | |
| 111 | case 't': |
| 112 | setcom(tcmd); |
| 113 | continue; |
| 114 | |
| 115 | case 'p': |
| 116 | setcom(pcmd); |
| 117 | continue; |
| 118 | |
| 119 | case 'm': |
| 120 | setcom(mcmd); |
| 121 | continue; |
| 122 | |
| 123 | default: |
| 124 | fprintf(stderr, "ar11: bad option `%c'\n", *cp); |
| 125 | done(1); |
| 126 | } |
| 127 | if(flg['i'-'a']) |
| 128 | flg['b'-'a']++; |
| 129 | if(flg['a'-'a'] || flg['b'-'a']) { |
| 130 | bastate = 1; |
| 131 | ponam = trim(argv[2]); |
| 132 | argv++; |
| 133 | argc--; |
| 134 | if(argc < 3) |
| 135 | usage(); |
| 136 | } |
| 137 | arnam = argv[2]; |
| 138 | namv = argv+3; |
| 139 | namc = argc-3; |
| 140 | if(comfun == 0) { |
| 141 | if(flg['u'-'a'] == 0) { |
| 142 | fprintf(stderr, "ar11: one of [%s] must be specified\n", man); |
| 143 | done(1); |
| 144 | } |
| 145 | setcom(rcmd); |
| 146 | } |
| 147 | (*comfun)(); |
| 148 | done(notfound()); |
| 149 | } |
| 150 | |
| 151 | setcom(fun) |
| 152 | int (*fun)(); |
| 153 | { |
| 154 | |
| 155 | if(comfun != 0) { |
| 156 | fprintf(stderr, "ar11: only one of [%s] allowed\n", man); |
| 157 | done(1); |
| 158 | } |
| 159 | comfun = fun; |
| 160 | } |
| 161 | |
| 162 | rcmd() |
| 163 | { |
| 164 | register f; |
| 165 | |
| 166 | init(); |
| 167 | if(getaf() && flg['c'-'a']==0) { |
| 168 | fprintf(stderr, "ar11: %s does not exist\n", arnam); |
| 169 | done(1); |
| 170 | } |
| 171 | while(!getdir()) { |
| 172 | bamatch(); |
| 173 | if(namc == 0 || match()) { |
| 174 | f = stats(); |
| 175 | if(f < 0) { |
| 176 | if(namc) |
| 177 | fprintf(stderr, "ar11: cannot open %s\n", file); |
| 178 | goto cp; |
| 179 | } |
| 180 | if(flg['u'-'a']) |
| 181 | if(stbuf.st_mtime <= ar_date) { |
| 182 | close(f); |
| 183 | goto cp; |
| 184 | } |
| 185 | mesg('r'); |
| 186 | copyfil(af, -1, IODD+SKIP); |
| 187 | movefil(f); |
| 188 | continue; |
| 189 | } |
| 190 | cp: |
| 191 | mesg('c'); |
| 192 | copyfil(af, tf, IODD+OODD+HEAD); |
| 193 | } |
| 194 | cleanup(); |
| 195 | } |
| 196 | |
| 197 | dcmd() |
| 198 | { |
| 199 | |
| 200 | init(); |
| 201 | if(getaf()) |
| 202 | noar(); |
| 203 | while(!getdir()) { |
| 204 | if(match()) { |
| 205 | mesg('d'); |
| 206 | copyfil(af, -1, IODD+SKIP); |
| 207 | continue; |
| 208 | } |
| 209 | mesg('c'); |
| 210 | copyfil(af, tf, IODD+OODD+HEAD); |
| 211 | } |
| 212 | install(); |
| 213 | } |
| 214 | |
| 215 | xcmd() |
| 216 | { |
| 217 | register f; |
| 218 | |
| 219 | if(getaf()) |
| 220 | noar(); |
| 221 | while(!getdir()) { |
| 222 | if(namc == 0 || match()) { |
| 223 | f = creat(file, arbuf.ar_mode & 0777); |
| 224 | if(f < 0) { |
| 225 | fprintf(stderr, "ar11: %s cannot create\n", file); |
| 226 | goto sk; |
| 227 | } |
| 228 | mesg('x'); |
| 229 | copyfil(af, f, IODD); |
| 230 | close(f); |
| 231 | continue; |
| 232 | } |
| 233 | sk: |
| 234 | mesg('c'); |
| 235 | copyfil(af, -1, IODD+SKIP); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | pcmd() |
| 240 | { |
| 241 | |
| 242 | if(getaf()) |
| 243 | noar(); |
| 244 | while(!getdir()) { |
| 245 | if(namc == 0 || match()) { |
| 246 | if(flg['v'-'a']) { |
| 247 | printf("\n<%s>\n\n", file); |
| 248 | fflush(stdout); |
| 249 | } |
| 250 | copyfil(af, 1, IODD); |
| 251 | continue; |
| 252 | } |
| 253 | copyfil(af, -1, IODD+SKIP); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | mcmd() |
| 258 | { |
| 259 | |
| 260 | init(); |
| 261 | if(getaf()) |
| 262 | noar(); |
| 263 | tf2nam = mktemp("/tmp/v2XXXXX"); |
| 264 | close(creat(tf2nam, 0600)); |
| 265 | tf2 = open(tf2nam, 2); |
| 266 | if(tf2 < 0) { |
| 267 | fprintf(stderr, "ar11: cannot create third temp\n"); |
| 268 | done(1); |
| 269 | } |
| 270 | while(!getdir()) { |
| 271 | bamatch(); |
| 272 | if(match()) { |
| 273 | mesg('m'); |
| 274 | copyfil(af, tf2, IODD+OODD+HEAD); |
| 275 | continue; |
| 276 | } |
| 277 | mesg('c'); |
| 278 | copyfil(af, tf, IODD+OODD+HEAD); |
| 279 | } |
| 280 | install(); |
| 281 | } |
| 282 | |
| 283 | tcmd() |
| 284 | { |
| 285 | |
| 286 | if(getaf()) |
| 287 | noar(); |
| 288 | while(!getdir()) { |
| 289 | if(namc == 0 || match()) { |
| 290 | if(flg['v'-'a']) |
| 291 | longt(); |
| 292 | printf("%s\n", trim(file)); |
| 293 | } |
| 294 | copyfil(af, -1, IODD+SKIP); |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | init() |
| 299 | { |
| 300 | static short mbuf = fixshort(ARMAG); |
| 301 | |
| 302 | tfnam = mktemp("/tmp/vXXXXX"); |
| 303 | close(creat(tfnam, 0600)); |
| 304 | tf = open(tfnam, 2); |
| 305 | if(tf < 0) { |
| 306 | fprintf(stderr, "ar11: cannot create temp file\n"); |
| 307 | done(1); |
| 308 | } |
| 309 | if (write(tf, (char *)&mbuf, sizeof(short)) != sizeof(short)) |
| 310 | wrerr(); |
| 311 | } |
| 312 | |
| 313 | getaf() |
| 314 | { |
| 315 | short mbuf; |
| 316 | |
| 317 | af = open(arnam, 0); |
| 318 | if(af < 0) |
| 319 | return(1); |
| 320 | if (read(af, (char *)&mbuf, sizeof(short)) != sizeof(short) || |
| 321 | mbuf != fixshort(ARMAG)) { |
| 322 | fprintf(stderr, "ar11: %s not in PDP-11 archive format\n", arnam); |
| 323 | done(1); |
| 324 | } |
| 325 | return(0); |
| 326 | } |
| 327 | |
| 328 | usage() |
| 329 | { |
| 330 | printf("usage: ar11 [%s][%s] archive files ...\n", opt, man); |
| 331 | done(1); |
| 332 | } |
| 333 | |
| 334 | noar() |
| 335 | { |
| 336 | |
| 337 | fprintf(stderr, "ar11: %s does not exist\n", arnam); |
| 338 | done(1); |
| 339 | } |
| 340 | |
| 341 | sigdone() |
| 342 | { |
| 343 | done(100); |
| 344 | } |
| 345 | |
| 346 | done(c) |
| 347 | { |
| 348 | |
| 349 | if(tfnam) |
| 350 | unlink(tfnam); |
| 351 | if(tf1nam) |
| 352 | unlink(tf1nam); |
| 353 | if(tf2nam) |
| 354 | unlink(tf2nam); |
| 355 | exit(c); |
| 356 | } |
| 357 | |
| 358 | notfound() |
| 359 | { |
| 360 | register i, n; |
| 361 | |
| 362 | n = 0; |
| 363 | for(i=0; i<namc; i++) |
| 364 | if(namv[i]) { |
| 365 | fprintf(stderr, "ar11: %s not found\n", namv[i]); |
| 366 | n++; |
| 367 | } |
| 368 | return(n); |
| 369 | } |
| 370 | |
| 371 | cleanup() |
| 372 | { |
| 373 | register i, f; |
| 374 | |
| 375 | for(i=0; i<namc; i++) { |
| 376 | file = namv[i]; |
| 377 | if(file == 0) |
| 378 | continue; |
| 379 | namv[i] = 0; |
| 380 | mesg('a'); |
| 381 | f = stats(); |
| 382 | if(f < 0) { |
| 383 | fprintf(stderr, "ar11: %s cannot open\n", file); |
| 384 | continue; |
| 385 | } |
| 386 | movefil(f); |
| 387 | } |
| 388 | install(); |
| 389 | } |
| 390 | |
| 391 | install() |
| 392 | { |
| 393 | register i; |
| 394 | |
| 395 | for(i=0; signum[i]; i++) |
| 396 | signal(signum[i], (int (*)())1); |
| 397 | close(af); |
| 398 | af = creat(arnam, 0666); |
| 399 | if(af < 0) { |
| 400 | fprintf(stderr, "ar11: cannot create %s\n", arnam); |
| 401 | done(1); |
| 402 | } |
| 403 | lseek(tf, 0l, 0); |
| 404 | while((i = read(tf, buf, 512)) > 0) |
| 405 | if (write(af, buf, i) != i) |
| 406 | wrerr(); |
| 407 | if(tf2nam) { |
| 408 | lseek(tf2, 0l, 0); |
| 409 | while((i = read(tf2, buf, 512)) > 0) |
| 410 | if (write(af, buf, i) != i) |
| 411 | wrerr(); |
| 412 | } |
| 413 | if(tf1nam) { |
| 414 | lseek(tf1, 0l, 0); |
| 415 | while((i = read(tf1, buf, 512)) > 0) |
| 416 | if (write(af, buf, i) != i) |
| 417 | wrerr(); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * insert the file 'file' |
| 423 | * into the temporary file |
| 424 | */ |
| 425 | movefil(f) |
| 426 | { |
| 427 | register char *cp; |
| 428 | register i; |
| 429 | |
| 430 | cp = trim(file); |
| 431 | for(i=0; i<14; i++) |
| 432 | if(arbuf.ar_name[i] = *cp) |
| 433 | cp++; |
| 434 | ar_size = stbuf.st_size; |
| 435 | ar_date = stbuf.st_mtime; |
| 436 | unmklong(arbuf.ar_ssize, ar_size); |
| 437 | unmklong(arbuf.ar_sdate, ar_date); |
| 438 | arbuf.ar_uid = stbuf.st_uid; |
| 439 | arbuf.ar_gid = stbuf.st_gid; |
| 440 | arbuf.ar_mode = stbuf.st_mode; |
| 441 | copyfil(f, tf, OODD+HEAD); |
| 442 | close(f); |
| 443 | } |
| 444 | |
| 445 | stats() |
| 446 | { |
| 447 | register f; |
| 448 | |
| 449 | f = open(file, 0); |
| 450 | if(f < 0) |
| 451 | return(f); |
| 452 | if(fstat(f, &stbuf) < 0) { |
| 453 | close(f); |
| 454 | return(-1); |
| 455 | } |
| 456 | return(f); |
| 457 | } |
| 458 | |
| 459 | /* |
| 460 | * copy next file |
| 461 | * size given in arbuf |
| 462 | */ |
| 463 | copyfil(fi, fo, flag) |
| 464 | { |
| 465 | register i, o; |
| 466 | int pe; |
| 467 | |
| 468 | if(flag & HEAD) { |
| 469 | struct ar_hdr tmpbuf; |
| 470 | |
| 471 | tmpbuf = fixhdr(arbuf); |
| 472 | if (write(fo, (char *)&tmpbuf, sizeof arbuf) != sizeof arbuf) |
| 473 | wrerr(); |
| 474 | } |
| 475 | pe = 0; |
| 476 | while(ar_size > 0) { |
| 477 | i = o = 512; |
| 478 | if(ar_size < i) { |
| 479 | i = o = ar_size; |
| 480 | if(i&1) { |
| 481 | if(flag & IODD) |
| 482 | i++; |
| 483 | if(flag & OODD) |
| 484 | o++; |
| 485 | } |
| 486 | } |
| 487 | if(read(fi, buf, i) != i) |
| 488 | pe++; |
| 489 | if((flag & SKIP) == 0) |
| 490 | if (write(fo, buf, o) != o) |
| 491 | wrerr(); |
| 492 | ar_size -= 512; |
| 493 | } |
| 494 | if(pe) |
| 495 | phserr(); |
| 496 | } |
| 497 | |
| 498 | getdir() |
| 499 | { |
| 500 | register i; |
| 501 | |
| 502 | i = read(af, (char *)&arbuf, sizeof arbuf); |
| 503 | if(i != sizeof arbuf) { |
| 504 | if(tf1nam) { |
| 505 | i = tf; |
| 506 | tf = tf1; |
| 507 | tf1 = i; |
| 508 | } |
| 509 | return(1); |
| 510 | } |
| 511 | arbuf = fixhdr(arbuf); |
| 512 | for(i=0; i<14; i++) |
| 513 | name[i] = arbuf.ar_name[i]; |
| 514 | file = name; |
| 515 | ar_date = mklong(arbuf.ar_sdate); |
| 516 | ar_size = mklong(arbuf.ar_ssize); |
| 517 | return(0); |
| 518 | } |
| 519 | |
| 520 | match() |
| 521 | { |
| 522 | register i; |
| 523 | |
| 524 | for(i=0; i<namc; i++) { |
| 525 | if(namv[i] == 0) |
| 526 | continue; |
| 527 | if(strcmp(trim(namv[i]), file) == 0) { |
| 528 | file = namv[i]; |
| 529 | namv[i] = 0; |
| 530 | return(1); |
| 531 | } |
| 532 | } |
| 533 | return(0); |
| 534 | } |
| 535 | |
| 536 | bamatch() |
| 537 | { |
| 538 | register f; |
| 539 | |
| 540 | switch(bastate) { |
| 541 | |
| 542 | case 1: |
| 543 | if(strcmp(file, ponam) != 0) |
| 544 | return; |
| 545 | bastate = 2; |
| 546 | if(flg['a'-'a']) |
| 547 | return; |
| 548 | |
| 549 | case 2: |
| 550 | bastate = 0; |
| 551 | tf1nam = mktemp("/tmp/v1XXXXX"); |
| 552 | close(creat(tf1nam, 0600)); |
| 553 | f = open(tf1nam, 2); |
| 554 | if(f < 0) { |
| 555 | fprintf(stderr, "ar11: cannot create second temp\n"); |
| 556 | return; |
| 557 | } |
| 558 | tf1 = tf; |
| 559 | tf = f; |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | phserr() |
| 564 | { |
| 565 | |
| 566 | fprintf(stderr, "ar11: phase error on %s\n", file); |
| 567 | } |
| 568 | |
| 569 | mesg(c) |
| 570 | { |
| 571 | |
| 572 | if(flg['v'-'a']) |
| 573 | if(c != 'c' || flg['v'-'a'] > 1) |
| 574 | printf("%c - %s\n", c, file); |
| 575 | } |
| 576 | |
| 577 | char * |
| 578 | trim(s) |
| 579 | char *s; |
| 580 | { |
| 581 | register char *p1, *p2; |
| 582 | |
| 583 | for(p1 = s; *p1; p1++) |
| 584 | ; |
| 585 | while(p1 > s) { |
| 586 | if(*--p1 != '/') |
| 587 | break; |
| 588 | *p1 = 0; |
| 589 | } |
| 590 | p2 = s; |
| 591 | for(p1 = s; *p1; p1++) |
| 592 | if(*p1 == '/') |
| 593 | p2 = p1+1; |
| 594 | return(p2); |
| 595 | } |
| 596 | |
| 597 | #define IFMT 060000 |
| 598 | #define ISARG 01000 |
| 599 | #define LARGE 010000 |
| 600 | #define SUID 04000 |
| 601 | #define SGID 02000 |
| 602 | #define ROWN 0400 |
| 603 | #define WOWN 0200 |
| 604 | #define XOWN 0100 |
| 605 | #define RGRP 040 |
| 606 | #define WGRP 020 |
| 607 | #define XGRP 010 |
| 608 | #define ROTH 04 |
| 609 | #define WOTH 02 |
| 610 | #define XOTH 01 |
| 611 | #define STXT 01000 |
| 612 | |
| 613 | longt() |
| 614 | { |
| 615 | register char *cp; |
| 616 | |
| 617 | pmode(); |
| 618 | printf("%3d/%1d", arbuf.ar_uid, arbuf.ar_gid); |
| 619 | printf("%7D", ar_size); |
| 620 | cp = ctime(&ar_date); |
| 621 | printf(" %-12.12s %-4.4s ", cp+4, cp+20); |
| 622 | } |
| 623 | |
| 624 | int m1[] = { 1, ROWN, 'r', '-' }; |
| 625 | int m2[] = { 1, WOWN, 'w', '-' }; |
| 626 | int m3[] = { 2, SUID, 's', XOWN, 'x', '-' }; |
| 627 | int m4[] = { 1, RGRP, 'r', '-' }; |
| 628 | int m5[] = { 1, WGRP, 'w', '-' }; |
| 629 | int m6[] = { 2, SGID, 's', XGRP, 'x', '-' }; |
| 630 | int m7[] = { 1, ROTH, 'r', '-' }; |
| 631 | int m8[] = { 1, WOTH, 'w', '-' }; |
| 632 | int m9[] = { 2, STXT, 't', XOTH, 'x', '-' }; |
| 633 | |
| 634 | int *m[] = { m1, m2, m3, m4, m5, m6, m7, m8, m9}; |
| 635 | |
| 636 | pmode() |
| 637 | { |
| 638 | register int **mp; |
| 639 | |
| 640 | for (mp = &m[0]; mp < &m[9];) |
| 641 | select(*mp++); |
| 642 | } |
| 643 | |
| 644 | select(pairp) |
| 645 | int *pairp; |
| 646 | { |
| 647 | register int n, *ap; |
| 648 | |
| 649 | ap = pairp; |
| 650 | n = *ap++; |
| 651 | while (--n>=0 && (arbuf.ar_mode&*ap++)==0) |
| 652 | ap++; |
| 653 | putchar(*ap); |
| 654 | } |
| 655 | |
| 656 | wrerr() |
| 657 | { |
| 658 | perror("ar write error"); |
| 659 | done(1); |
| 660 | } |
| 661 | |
| 662 | #ifdef mc68000 |
| 663 | struct ar_hdr |
| 664 | swaphdr(hdr) |
| 665 | struct ar_hdr hdr; |
| 666 | { |
| 667 | hdr.ar_sdate[0] = fixshort(hdr.ar_sdate[0]); |
| 668 | hdr.ar_sdate[1] = fixshort(hdr.ar_sdate[1]); |
| 669 | hdr.ar_ssize[0] = fixshort(hdr.ar_ssize[0]); |
| 670 | hdr.ar_ssize[1] = fixshort(hdr.ar_ssize[1]); |
| 671 | hdr.ar_mode = fixshort(hdr.ar_mode); |
| 672 | return (hdr); |
| 673 | } |
| 674 | #endif |