Commit | Line | Data |
---|---|---|
a2106e5f | 1 | static char *sccsid = "@(#)ar11.c 4.2 (Berkeley) %G%"; |
c2ef410e BJ |
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 -155 /* 017545 */ | |
9 | struct ar_hdr { | |
10 | char ar_name[14]; | |
11 | short ar_date1; | |
12 | short ar_date2; | |
13 | char ar_uid; | |
14 | char ar_gid; | |
15 | short ar_mode; | |
16 | short ar_size1; | |
17 | short ar_size2; | |
18 | }; | |
19 | int ar_date; | |
20 | int ar_size; | |
21 | #include <signal.h> | |
22 | struct stat stbuf; | |
23 | struct ar_hdr arbuf; | |
24 | union ints | |
25 | { | |
26 | struct fun | |
27 | { | |
28 | short h1; | |
29 | short h2; | |
30 | }; | |
31 | int w1; | |
32 | } x; | |
33 | ||
34 | #define SKIP 1 | |
35 | #define IODD 2 | |
36 | #define OODD 4 | |
37 | #define HEAD 8 | |
38 | ||
39 | char *man = { "mrxtdp" }; | |
40 | char *opt = { "uvnbai" }; | |
41 | ||
42 | int signum[] = {SIGHUP, SIGINT, SIGQUIT, 0}; | |
43 | int sigdone(); | |
44 | int rcmd(); | |
45 | int dcmd(); | |
46 | int xcmd(); | |
47 | int tcmd(); | |
48 | int pcmd(); | |
49 | int mcmd(); | |
50 | int (*comfun)(); | |
51 | char flg[26]; | |
52 | char **namv; | |
53 | int namc; | |
54 | char *arnam; | |
55 | char *ponam; | |
56 | char *tfnam; | |
57 | char *tf1nam; | |
58 | char *tf2nam; | |
59 | char *file; | |
60 | char name[16]; | |
61 | int af; | |
62 | int tf; | |
63 | int tf1; | |
64 | int tf2; | |
65 | int bastate; | |
66 | char buf[512]; | |
67 | ||
68 | char *trim(); | |
69 | char *mktemp(); | |
70 | char *ctime(); | |
71 | ||
72 | main(argc, argv) | |
73 | char *argv[]; | |
74 | { | |
75 | register i; | |
76 | register char *cp; | |
77 | ||
78 | for(i=0; signum[i]; i++) | |
79 | if(signal(signum[i], SIG_IGN) != SIG_IGN) | |
80 | signal(signum[i], sigdone); | |
81 | if(argc < 3) | |
82 | usage(); | |
83 | cp = argv[1]; | |
84 | for(cp = argv[1]; *cp; cp++) | |
85 | switch(*cp) { | |
86 | case 'c': | |
87 | case 'v': | |
88 | case 'u': | |
89 | case 'n': | |
90 | case 'a': | |
91 | case 'b': | |
92 | case 'i': | |
93 | flg[*cp - 'a']++; | |
94 | continue; | |
95 | ||
96 | case 'r': | |
97 | setcom(rcmd); | |
98 | continue; | |
99 | ||
100 | case 'd': | |
101 | setcom(dcmd); | |
102 | continue; | |
103 | ||
104 | case 'x': | |
105 | setcom(xcmd); | |
106 | continue; | |
107 | ||
108 | case 't': | |
109 | setcom(tcmd); | |
110 | continue; | |
111 | ||
112 | case 'p': | |
113 | setcom(pcmd); | |
114 | continue; | |
115 | ||
116 | case 'm': | |
117 | setcom(mcmd); | |
118 | continue; | |
119 | ||
120 | default: | |
121 | fprintf(stderr, "ar11: bad option `%c'\n", *cp); | |
122 | done(1); | |
123 | } | |
124 | if(flg['i'-'a']) | |
125 | flg['b'-'a']++; | |
126 | if(flg['a'-'a'] || flg['b'-'a']) { | |
127 | bastate = 1; | |
128 | ponam = trim(argv[2]); | |
129 | argv++; | |
130 | argc--; | |
131 | if(argc < 3) | |
132 | usage(); | |
133 | } | |
134 | arnam = argv[2]; | |
135 | namv = argv+3; | |
136 | namc = argc-3; | |
137 | if(comfun == 0) { | |
138 | if(flg['u'-'a'] == 0) { | |
139 | fprintf(stderr, "ar11: one of [%s] must be specified\n", man); | |
140 | done(1); | |
141 | } | |
142 | setcom(rcmd); | |
143 | } | |
144 | (*comfun)(); | |
145 | done(notfound()); | |
146 | } | |
147 | ||
148 | setcom(fun) | |
149 | int (*fun)(); | |
150 | { | |
151 | ||
152 | if(comfun != 0) { | |
153 | fprintf(stderr, "ar11: only one of [%s] allowed\n", man); | |
154 | done(1); | |
155 | } | |
156 | comfun = fun; | |
157 | } | |
158 | ||
159 | rcmd() | |
160 | { | |
161 | register f; | |
162 | ||
163 | init(); | |
164 | if(getaf() && flg['c'-'a']==0) { | |
165 | fprintf(stderr, "ar11: %s does not exist\n", arnam); | |
166 | done(1); | |
167 | } | |
168 | while(!getdir()) { | |
169 | bamatch(); | |
170 | if(namc == 0 || match()) { | |
171 | f = stats(); | |
172 | if(f < 0) { | |
173 | if(namc) | |
174 | fprintf(stderr, "ar11: cannot open %s\n", file); | |
175 | goto cp; | |
176 | } | |
177 | if(flg['u'-'a']) | |
178 | if(stbuf.st_mtime <= ar_date) { | |
179 | close(f); | |
180 | goto cp; | |
181 | } | |
182 | mesg('r'); | |
183 | copyfil(af, -1, IODD+SKIP); | |
184 | movefil(f); | |
185 | continue; | |
186 | } | |
187 | cp: | |
188 | mesg('c'); | |
189 | copyfil(af, tf, IODD+OODD+HEAD); | |
190 | } | |
191 | cleanup(); | |
192 | } | |
193 | ||
194 | dcmd() | |
195 | { | |
196 | ||
197 | init(); | |
198 | if(getaf()) | |
199 | noar(); | |
200 | while(!getdir()) { | |
201 | if(match()) { | |
202 | mesg('d'); | |
203 | copyfil(af, -1, IODD+SKIP); | |
204 | continue; | |
205 | } | |
206 | mesg('c'); | |
207 | copyfil(af, tf, IODD+OODD+HEAD); | |
208 | } | |
209 | install(); | |
210 | } | |
211 | ||
212 | xcmd() | |
213 | { | |
214 | register f; | |
215 | ||
216 | if(getaf()) | |
217 | noar(); | |
218 | while(!getdir()) { | |
219 | if(namc == 0 || match()) { | |
220 | f = creat(file, arbuf.ar_mode & 0777); | |
221 | if(f < 0) { | |
222 | fprintf(stderr, "ar11: %s cannot create\n", file); | |
223 | goto sk; | |
224 | } | |
225 | mesg('x'); | |
226 | copyfil(af, f, IODD); | |
227 | close(f); | |
228 | continue; | |
229 | } | |
230 | sk: | |
231 | mesg('c'); | |
232 | copyfil(af, -1, IODD+SKIP); | |
233 | } | |
234 | } | |
235 | ||
236 | pcmd() | |
237 | { | |
238 | ||
239 | if(getaf()) | |
240 | noar(); | |
241 | while(!getdir()) { | |
242 | if(namc == 0 || match()) { | |
243 | if(flg['v'-'a']) { | |
244 | printf("\n<%s>\n\n", file); | |
245 | fflush(stdout); | |
246 | } | |
247 | copyfil(af, 1, IODD); | |
248 | continue; | |
249 | } | |
250 | copyfil(af, -1, IODD+SKIP); | |
251 | } | |
252 | } | |
253 | ||
254 | mcmd() | |
255 | { | |
256 | ||
257 | init(); | |
258 | if(getaf()) | |
259 | noar(); | |
260 | tf2nam = mktemp("/tmp/v2XXXXX"); | |
261 | close(creat(tf2nam, 0600)); | |
262 | tf2 = open(tf2nam, 2); | |
263 | if(tf2 < 0) { | |
264 | fprintf(stderr, "ar11: cannot create third temp\n"); | |
265 | done(1); | |
266 | } | |
267 | while(!getdir()) { | |
268 | bamatch(); | |
269 | if(match()) { | |
270 | mesg('m'); | |
271 | copyfil(af, tf2, IODD+OODD+HEAD); | |
272 | continue; | |
273 | } | |
274 | mesg('c'); | |
275 | copyfil(af, tf, IODD+OODD+HEAD); | |
276 | } | |
277 | install(); | |
278 | } | |
279 | ||
280 | tcmd() | |
281 | { | |
282 | ||
283 | if(getaf()) | |
284 | noar(); | |
285 | while(!getdir()) { | |
286 | if(namc == 0 || match()) { | |
287 | if(flg['v'-'a']) | |
288 | longt(); | |
289 | printf("%s\n", trim(file)); | |
290 | } | |
291 | copyfil(af, -1, IODD+SKIP); | |
292 | } | |
293 | } | |
294 | ||
295 | init() | |
296 | { | |
297 | static short mbuf = ARMAG; | |
298 | ||
299 | tfnam = mktemp("/tmp/vXXXXX"); | |
300 | close(creat(tfnam, 0600)); | |
301 | tf = open(tfnam, 2); | |
302 | if(tf < 0) { | |
303 | fprintf(stderr, "ar11: cannot create temp file\n"); | |
304 | done(1); | |
305 | } | |
306 | if (write(tf, (char *)&mbuf, sizeof(short)) != sizeof(short)) | |
307 | wrerr(); | |
308 | } | |
309 | ||
310 | getaf() | |
311 | { | |
312 | short mbuf; | |
313 | ||
314 | af = open(arnam, 0); | |
315 | if(af < 0) | |
316 | return(1); | |
317 | if (read(af, (char *)&mbuf, sizeof(short)) != sizeof(short) || mbuf!=ARMAG) { | |
318 | fprintf(stderr, "ar11: %s not in PDP-11 archive format\n", arnam); | |
319 | done(1); | |
320 | } | |
321 | return(0); | |
322 | } | |
323 | ||
324 | usage() | |
325 | { | |
326 | printf("usage: ar11 [%s][%s] archive files ...\n", opt, man); | |
327 | done(1); | |
328 | } | |
329 | ||
330 | noar() | |
331 | { | |
332 | ||
333 | fprintf(stderr, "ar11: %s does not exist\n", arnam); | |
334 | done(1); | |
335 | } | |
336 | ||
337 | sigdone() | |
338 | { | |
339 | done(100); | |
340 | } | |
341 | ||
342 | done(c) | |
343 | { | |
344 | ||
345 | if(tfnam) | |
346 | unlink(tfnam); | |
347 | if(tf1nam) | |
348 | unlink(tf1nam); | |
349 | if(tf2nam) | |
350 | unlink(tf2nam); | |
351 | exit(c); | |
352 | } | |
353 | ||
354 | notfound() | |
355 | { | |
356 | register i, n; | |
357 | ||
358 | n = 0; | |
359 | for(i=0; i<namc; i++) | |
360 | if(namv[i]) { | |
361 | fprintf(stderr, "ar11: %s not found\n", namv[i]); | |
362 | n++; | |
363 | } | |
364 | return(n); | |
365 | } | |
366 | ||
367 | cleanup() | |
368 | { | |
369 | register i, f; | |
370 | ||
371 | for(i=0; i<namc; i++) { | |
372 | file = namv[i]; | |
373 | if(file == 0) | |
374 | continue; | |
375 | namv[i] = 0; | |
376 | mesg('a'); | |
377 | f = stats(); | |
378 | if(f < 0) { | |
379 | fprintf(stderr, "ar11: %s cannot open\n", file); | |
380 | continue; | |
381 | } | |
382 | movefil(f); | |
383 | } | |
384 | install(); | |
385 | } | |
386 | ||
387 | install() | |
388 | { | |
389 | register i; | |
390 | ||
391 | for(i=0; signum[i]; i++) | |
392 | signal(signum[i], (int (*)())1); | |
393 | close(af); | |
394 | af = creat(arnam, 0666); | |
395 | if(af < 0) { | |
396 | fprintf(stderr, "ar11: cannot create %s\n", arnam); | |
397 | done(1); | |
398 | } | |
399 | lseek(tf, 0l, 0); | |
400 | while((i = read(tf, buf, 512)) > 0) | |
401 | if (write(af, buf, i) != i) | |
402 | wrerr(); | |
403 | if(tf2nam) { | |
404 | lseek(tf2, 0l, 0); | |
405 | while((i = read(tf2, buf, 512)) > 0) | |
406 | if (write(af, buf, i) != i) | |
407 | wrerr(); | |
408 | } | |
409 | if(tf1nam) { | |
410 | lseek(tf1, 0l, 0); | |
411 | while((i = read(tf1, buf, 512)) > 0) | |
412 | if (write(af, buf, i) != i) | |
413 | wrerr(); | |
414 | } | |
415 | } | |
416 | ||
417 | /* | |
418 | * insert the file 'file' | |
419 | * into the temporary file | |
420 | */ | |
421 | movefil(f) | |
422 | { | |
423 | register char *cp; | |
424 | register i; | |
425 | ||
426 | cp = trim(file); | |
427 | for(i=0; i<14; i++) | |
428 | if(arbuf.ar_name[i] = *cp) | |
429 | cp++; | |
a2106e5f | 430 | ar_size = x.w1 = stbuf.st_size; |
c2ef410e BJ |
431 | arbuf.ar_size1 = x.h2; |
432 | arbuf.ar_size2 = x.h1; | |
433 | x.w1 = stbuf.st_mtime; | |
434 | arbuf.ar_date1 = x.h2; | |
435 | arbuf.ar_date2 = x.h1; | |
436 | arbuf.ar_uid = stbuf.st_uid; | |
437 | arbuf.ar_gid = stbuf.st_gid; | |
438 | arbuf.ar_mode = stbuf.st_mode; | |
439 | copyfil(f, tf, OODD+HEAD); | |
440 | close(f); | |
441 | } | |
442 | ||
443 | stats() | |
444 | { | |
445 | register f; | |
446 | ||
447 | f = open(file, 0); | |
448 | if(f < 0) | |
449 | return(f); | |
450 | if(fstat(f, &stbuf) < 0) { | |
451 | close(f); | |
452 | return(-1); | |
453 | } | |
454 | return(f); | |
455 | } | |
456 | ||
457 | /* | |
458 | * copy next file | |
459 | * size given in arbuf | |
460 | */ | |
461 | copyfil(fi, fo, flag) | |
462 | { | |
463 | register i, o; | |
464 | int pe; | |
465 | ||
466 | if(flag & HEAD) | |
467 | if (write(fo, (char *)&arbuf, sizeof arbuf) != sizeof arbuf) | |
468 | wrerr(); | |
469 | pe = 0; | |
470 | while(ar_size > 0) { | |
471 | i = o = 512; | |
472 | if(ar_size < i) { | |
473 | i = o = ar_size; | |
474 | if(i&1) { | |
475 | if(flag & IODD) | |
476 | i++; | |
477 | if(flag & OODD) | |
478 | o++; | |
479 | } | |
480 | } | |
481 | if(read(fi, buf, i) != i) | |
482 | pe++; | |
483 | if((flag & SKIP) == 0) | |
484 | if (write(fo, buf, o) != o) | |
485 | wrerr(); | |
486 | ar_size -= 512; | |
487 | } | |
488 | if(pe) | |
489 | phserr(); | |
490 | } | |
491 | ||
492 | getdir() | |
493 | { | |
494 | register i; | |
495 | ||
496 | i = read(af, (char *)&arbuf, sizeof arbuf); | |
497 | if(i != sizeof arbuf) { | |
498 | if(tf1nam) { | |
499 | i = tf; | |
500 | tf = tf1; | |
501 | tf1 = i; | |
502 | } | |
503 | return(1); | |
504 | } | |
505 | for(i=0; i<14; i++) | |
506 | { | |
507 | name[i] = arbuf.ar_name[i]; | |
508 | } | |
509 | file = name; | |
510 | ar_date = swap(&arbuf.ar_date1); | |
511 | ar_size = swap(&arbuf.ar_size1); | |
512 | return(0); | |
513 | } | |
514 | ||
515 | match() | |
516 | { | |
517 | register i; | |
518 | ||
519 | for(i=0; i<namc; i++) { | |
520 | if(namv[i] == 0) | |
521 | continue; | |
522 | if(strcmp(trim(namv[i]), file) == 0) { | |
523 | file = namv[i]; | |
524 | namv[i] = 0; | |
525 | return(1); | |
526 | } | |
527 | } | |
528 | return(0); | |
529 | } | |
530 | ||
531 | bamatch() | |
532 | { | |
533 | register f; | |
534 | ||
535 | switch(bastate) { | |
536 | ||
537 | case 1: | |
538 | if(strcmp(file, ponam) != 0) | |
539 | return; | |
540 | bastate = 2; | |
541 | if(flg['a'-'a']) | |
542 | return; | |
543 | ||
544 | case 2: | |
545 | bastate = 0; | |
546 | tf1nam = mktemp("/tmp/v1XXXXX"); | |
547 | close(creat(tf1nam, 0600)); | |
548 | f = open(tf1nam, 2); | |
549 | if(f < 0) { | |
550 | fprintf(stderr, "ar11: cannot create second temp\n"); | |
551 | return; | |
552 | } | |
553 | tf1 = tf; | |
554 | tf = f; | |
555 | } | |
556 | } | |
557 | ||
558 | phserr() | |
559 | { | |
560 | ||
561 | fprintf(stderr, "ar11: phase error on %s\n", file); | |
562 | } | |
563 | ||
564 | mesg(c) | |
565 | { | |
566 | ||
567 | if(flg['v'-'a']) | |
568 | if(c != 'c' || flg['v'-'a'] > 1) | |
569 | printf("%c - %s\n", c, file); | |
570 | } | |
571 | ||
572 | char * | |
573 | trim(s) | |
574 | char *s; | |
575 | { | |
576 | register char *p1, *p2; | |
577 | ||
578 | for(p1 = s; *p1; p1++) | |
579 | ; | |
580 | while(p1 > s) { | |
581 | if(*--p1 != '/') | |
582 | break; | |
583 | *p1 = 0; | |
584 | } | |
585 | p2 = s; | |
586 | for(p1 = s; *p1; p1++) | |
587 | if(*p1 == '/') | |
588 | p2 = p1+1; | |
589 | return(p2); | |
590 | } | |
591 | ||
592 | #define IFMT 060000 | |
593 | #define ISARG 01000 | |
594 | #define LARGE 010000 | |
595 | #define SUID 04000 | |
596 | #define SGID 02000 | |
597 | #define ROWN 0400 | |
598 | #define WOWN 0200 | |
599 | #define XOWN 0100 | |
600 | #define RGRP 040 | |
601 | #define WGRP 020 | |
602 | #define XGRP 010 | |
603 | #define ROTH 04 | |
604 | #define WOTH 02 | |
605 | #define XOTH 01 | |
606 | #define STXT 01000 | |
607 | ||
608 | longt() | |
609 | { | |
610 | register char *cp; | |
611 | ||
612 | pmode(); | |
613 | printf("%3d/%1d", arbuf.ar_uid, arbuf.ar_gid); | |
614 | printf("%7D", ar_size); | |
615 | cp = ctime(&ar_date); | |
616 | printf(" %-12.12s %-4.4s ", cp+4, cp+20); | |
617 | } | |
618 | ||
619 | int m1[] = { 1, ROWN, 'r', '-' }; | |
620 | int m2[] = { 1, WOWN, 'w', '-' }; | |
621 | int m3[] = { 2, SUID, 's', XOWN, 'x', '-' }; | |
622 | int m4[] = { 1, RGRP, 'r', '-' }; | |
623 | int m5[] = { 1, WGRP, 'w', '-' }; | |
624 | int m6[] = { 2, SGID, 's', XGRP, 'x', '-' }; | |
625 | int m7[] = { 1, ROTH, 'r', '-' }; | |
626 | int m8[] = { 1, WOTH, 'w', '-' }; | |
627 | int m9[] = { 2, STXT, 't', XOTH, 'x', '-' }; | |
628 | ||
629 | int *m[] = { m1, m2, m3, m4, m5, m6, m7, m8, m9}; | |
630 | ||
631 | pmode() | |
632 | { | |
633 | register int **mp; | |
634 | ||
635 | for (mp = &m[0]; mp < &m[9];) | |
636 | select(*mp++); | |
637 | } | |
638 | ||
639 | select(pairp) | |
640 | int *pairp; | |
641 | { | |
642 | register int n, *ap; | |
643 | ||
644 | ap = pairp; | |
645 | n = *ap++; | |
646 | while (--n>=0 && (arbuf.ar_mode&*ap++)==0) | |
647 | ap++; | |
648 | putchar(*ap); | |
649 | } | |
650 | ||
651 | wrerr() | |
652 | { | |
653 | perror("ar write error"); | |
654 | done(1); | |
655 | } | |
656 | ||
657 | swap(word) | |
658 | short *word; | |
659 | { | |
660 | x.h1 = ((struct fun *)word)->h2; | |
661 | x.h2 = ((struct fun *)word)->h1; | |
662 | ||
663 | return(x.w1); | |
664 | } |