Commit | Line | Data |
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530bfa14 KM |
1 | /* Copyright (c) 1983 Regents of the University of California */ |
2 | ||
3 | #ifndef lint | |
81fbeb32 | 4 | static char sccsid[] = "@(#)cpio.c 4.2 (Berkeley) %G%"; |
530bfa14 KM |
5 | #endif not lint |
6 | ||
7 | /* cpio COMPILE: cc -O cpio.c -s -i -o cpio | |
8 | cpio -- copy file collections | |
9 | ||
10 | */ | |
11 | #include <stdio.h> | |
12 | #include <sys/types.h> | |
13 | #include <sys/stat.h> | |
14 | #include <signal.h> | |
15 | #ifdef RT | |
16 | #define S_IFEXT 0120000 /* allocated by extents */ | |
17 | #define S_IF1EXT 0130000 /* one extent */ | |
18 | #endif | |
19 | #define EQ(x,y) (strcmp(x,y)==0) | |
20 | /* for VAX, Interdata, ... */ | |
21 | #define MKSHORT(v,lv) {U.l=1L;if(U.c[0]) U.l=lv,v[0]=U.s[1],v[1]=U.s[0]; else U.l=lv,v[0]=U.s[0],v[1]=U.s[1];} | |
22 | #define MAGIC 070707 | |
23 | #define IN 1 | |
24 | #define OUT 2 | |
25 | #define PASS 3 | |
26 | #define HDRSIZE ((sizeof Hdr)-256) | |
27 | #define LINKS 1000 | |
28 | #define MERT 0 | |
29 | #define CHARS 76 | |
30 | #ifdef RT | |
31 | #define MERT 1 /* yes = 1 ; no = 0 */ | |
32 | extern long filespace; | |
33 | #endif | |
34 | ||
35 | struct stat Statb, Xstatb; | |
36 | ||
37 | struct header { | |
38 | short h_magic, | |
39 | h_dev; | |
40 | unsigned short h_ino, | |
41 | h_mode, | |
42 | h_uid, | |
43 | h_gid; | |
44 | short h_nlink, | |
45 | h_rdev, | |
46 | h_mtime[2], | |
47 | h_namesize, | |
48 | h_filesize[2]; | |
49 | char h_name[256]; | |
50 | } Hdr; | |
51 | ||
52 | int Bufsize = 512; | |
53 | short Buf[256], *Dbuf; | |
54 | char BBuf[512]; | |
55 | char *Cbuf; | |
56 | int Wct,Wc; | |
57 | short *Wp; | |
58 | char *Cp; | |
59 | #ifdef RT | |
60 | short Actual_size[2]; /* MERT variable */ | |
61 | struct{ | |
62 | long long_size; | |
63 | }; | |
64 | #endif | |
65 | ||
66 | short Option, | |
67 | Dir, | |
68 | Uncond, | |
69 | Link, | |
70 | Rename, | |
71 | Toc, | |
72 | Verbose, | |
73 | Select, | |
74 | Mod_time, | |
75 | Acc_time, | |
76 | Cflag, | |
77 | Swap; | |
78 | ||
79 | int Ifile, | |
80 | Ofile, | |
81 | Input = 0, | |
82 | Output = 1; | |
83 | long Blocks, | |
84 | Longfile, | |
85 | Longtime; | |
86 | ||
87 | char Fullname[256], | |
88 | Name[256]; | |
89 | int Pathend; | |
90 | ||
91 | FILE *Rtty, | |
92 | *Wtty; | |
93 | ||
94 | char *Pattern[100]; | |
95 | char Strhdr[500]; | |
96 | char *Chdr = Strhdr; | |
97 | short Dev, | |
98 | Uid, | |
99 | Gid, | |
100 | A_directory, | |
101 | A_special, | |
102 | #ifdef RT | |
103 | One_extent, | |
104 | Multi_extent, | |
105 | #endif | |
106 | Filetype = S_IFMT; | |
107 | #ifdef RT | |
108 | short Remove_mode = 0007777; | |
109 | short New_mode; | |
110 | #endif | |
111 | ||
112 | extern errno; | |
113 | char *malloc(); | |
114 | char *cd(); | |
115 | char *Cd_name; | |
116 | FILE *popen(); | |
117 | ||
118 | union { long l; short s[2]; char c[4]; } U; | |
119 | ||
120 | /* for VAX, Interdata, ... */ | |
121 | long mklong(v) | |
122 | short v[]; | |
123 | { | |
124 | U.l = 1; | |
125 | if(U.c[0]) | |
126 | U.s[0] = v[1], U.s[1] = v[0]; | |
127 | else | |
128 | U.s[0] = v[0], U.s[1] = v[1]; | |
129 | return U.l; | |
130 | } | |
131 | ||
132 | main(argc, argv) | |
133 | char **argv; | |
134 | { | |
135 | register ct; | |
136 | long filesz; | |
137 | long lng; | |
138 | register char *fullp; | |
139 | register i; | |
140 | ||
141 | signal(SIGSYS, 1); | |
142 | if(*argv[1] != '-') | |
143 | usage(); | |
144 | Uid = getuid(); | |
145 | umask(0); | |
146 | Gid = getgid(); | |
147 | Pattern[0] = "*"; | |
148 | ||
149 | while(*++argv[1]) { | |
150 | switch(*argv[1]) { | |
151 | case 'a': | |
152 | Acc_time++; | |
153 | break; | |
154 | case 'B': | |
155 | Bufsize = 5120; | |
156 | break; | |
157 | case 'i': | |
158 | Option = IN; | |
159 | if(argc > 2 ) { | |
160 | for(i = 0; (i+2) < argc; ++i) | |
161 | Pattern[i] = argv[i+2]; | |
162 | } | |
163 | break; | |
164 | case 'o': | |
165 | if(argc != 2) | |
166 | usage(); | |
167 | Option = OUT; | |
168 | break; | |
169 | case 'p': | |
170 | if(argc != 3) | |
171 | usage(); | |
172 | if(access(argv[2], 2) == -1) { | |
173 | accerr: | |
174 | err("cannot write in <%s>\n", argv[2]); | |
175 | exit(2); | |
176 | } | |
177 | strcpy(Fullname, argv[2]); | |
178 | strcat(Fullname, "/"); | |
179 | stat(Fullname, &Xstatb); | |
180 | if((Xstatb.st_mode&S_IFMT) != S_IFDIR) | |
181 | goto accerr; | |
182 | Option = PASS; | |
183 | Dev = Xstatb.st_dev; | |
184 | break; | |
185 | case 'c': | |
186 | Cflag++; | |
187 | break; | |
188 | case 'd': | |
189 | Dir++; | |
190 | break; | |
191 | case 'l': | |
192 | Link++; | |
193 | break; | |
194 | case 'm': | |
195 | Mod_time++; | |
196 | break; | |
197 | case 'r': | |
198 | Rename++; | |
199 | Rtty = fopen("/dev/tty", "r"); | |
200 | Wtty = fopen("/dev/tty", "w"); | |
201 | if(Rtty==NULL || Wtty==NULL) { | |
202 | err( | |
203 | "Cannot rename (/dev/tty missing)\n"); | |
204 | exit(2); | |
205 | } | |
206 | break; | |
207 | case 's': | |
208 | Swap++; | |
209 | break; | |
210 | case 't': | |
211 | Toc++; | |
212 | break; | |
213 | case 'u': | |
214 | Uncond++; | |
215 | break; | |
216 | case 'v': | |
217 | Verbose++; | |
218 | break; | |
219 | case '6': | |
220 | Filetype = 060000; | |
221 | break; | |
222 | default: | |
223 | usage(); | |
224 | } | |
225 | } | |
226 | if(!Option) { | |
227 | err("Options must include o|i|p\n"); | |
228 | exit(2); | |
229 | } | |
230 | ||
231 | if (Cflag && Swap) { | |
232 | err("Swap flag is ignored with Cflag\n"); | |
233 | Swap = 0; | |
234 | } | |
235 | ||
236 | if(Option != PASS) { | |
237 | Wp = Dbuf = (short *)malloc(Bufsize); | |
238 | Cp = Cbuf = (char *)malloc(Bufsize); | |
239 | } | |
240 | Wct = Bufsize >> 1; | |
241 | Wc = Bufsize; | |
242 | ||
243 | if(Option == PASS && Rename) { | |
244 | err("Pass and Rename cannot be used together"); | |
245 | exit(2); | |
246 | } | |
247 | switch(Option) { | |
248 | ||
249 | case OUT: | |
250 | while(getname()) { | |
251 | if( mklong(Hdr.h_filesize) == 0L) { | |
252 | if ( Cflag ) | |
253 | writehdr(Chdr,CHARS+Hdr.h_namesize); | |
254 | else | |
255 | bwrite(&Hdr, HDRSIZE+Hdr.h_namesize); | |
256 | #ifdef RT | |
257 | if( (MERT) && (((Hdr.h_mode & Filetype) == S_IF1EXT) | |
258 | || ((Hdr.h_mode & Filetype) == S_IFEXT))) { | |
259 | actsize(); | |
260 | bwrite(&Hdr, HDRSIZE+Hdr.h_namesize); | |
261 | } | |
262 | #endif | |
263 | continue; | |
264 | } | |
265 | if((Ifile = open(Hdr.h_name, 0)) < 0) { | |
266 | err("<%s> ?\n", Hdr.h_name); | |
267 | continue; | |
268 | } | |
269 | if ( Cflag ) | |
270 | writehdr(Chdr,CHARS+Hdr.h_namesize); | |
271 | else | |
272 | bwrite(&Hdr, HDRSIZE+Hdr.h_namesize); | |
273 | #ifdef RT | |
274 | if( (MERT) && (((Hdr.h_mode & Filetype) == S_IF1EXT) | |
275 | || ((Hdr.h_mode & Filetype) == S_IFEXT))) { | |
276 | actsize(); | |
277 | bwrite(&Hdr, HDRSIZE+Hdr.h_namesize); | |
278 | } | |
279 | #endif | |
280 | for(filesz=mklong(Hdr.h_filesize); filesz>0; filesz-= 512){ | |
281 | ct = filesz>512? 512: filesz; | |
282 | if(read(Ifile, Cflag? BBuf: (char *)Buf, ct) < 0) { | |
283 | err("Cannot read %s\n", Hdr.h_name); | |
284 | continue; | |
285 | } | |
286 | Cflag? writehdr(BBuf,ct): bwrite(Buf,ct); | |
287 | } | |
288 | close(Ifile); | |
289 | if(Acc_time) | |
290 | utime(Hdr.h_name, &Statb.st_atime); | |
291 | if(Verbose) | |
292 | err("%s\n", Hdr.h_name); | |
293 | } | |
294 | strcpy(Hdr.h_name, "TRAILER!!!"); | |
295 | Hdr.h_magic = MAGIC; | |
296 | MKSHORT(Hdr.h_filesize, 0L); | |
297 | Hdr.h_namesize = strlen("TRAILER!!!") + 1; | |
298 | if ( Cflag ) { | |
299 | lng = 0; | |
300 | bintochar(lng); | |
301 | writehdr(Chdr,CHARS+Hdr.h_namesize); | |
302 | } | |
303 | else | |
304 | bwrite(&Hdr, HDRSIZE+Hdr.h_namesize); | |
305 | Cflag? writehdr(Cbuf, Bufsize): bwrite(Dbuf, Bufsize); | |
306 | break; | |
307 | ||
308 | case IN: | |
309 | pwd(); | |
310 | while(gethdr()) { | |
311 | Ofile = ckname(Hdr.h_name)? openout(Hdr.h_name): 0; | |
312 | for(filesz=mklong(Hdr.h_filesize); filesz>0; filesz-= 512){ | |
313 | ct = filesz>512? 512: filesz; | |
314 | Cflag? readhdr(BBuf, ct): bread(Buf, ct); | |
315 | if(Ofile) { | |
316 | if(Swap) | |
317 | swap(Buf, ct); | |
318 | if(write(Ofile, Cflag? BBuf: (char *)Buf, ct) < 0) { | |
319 | err("Cannot write %s\n", Hdr.h_name); | |
320 | continue; | |
321 | } | |
322 | } | |
323 | } | |
324 | if(Ofile) { | |
325 | close(Ofile); | |
326 | set_time(Cd_name, mklong(Hdr.h_mtime), mklong(Hdr.h_mtime)); | |
327 | } | |
328 | if(!Select) | |
329 | continue; | |
330 | if(Verbose) | |
331 | if(Toc) | |
332 | pentry(Hdr.h_name); | |
333 | else | |
334 | puts(Hdr.h_name); | |
335 | else if(Toc) | |
336 | puts(Hdr.h_name); | |
337 | } | |
338 | break; | |
339 | ||
340 | case PASS: | |
341 | fullp = Fullname + strlen(Fullname); | |
342 | ||
343 | while(getname()) { | |
344 | if(!ckname(Hdr.h_name)) | |
345 | continue; | |
346 | strcpy(fullp, Hdr.h_name); | |
347 | ||
348 | if(Link | |
349 | && !A_directory | |
350 | && Dev == Statb.st_dev) { | |
351 | /* ??? && (Uid == Statb.st_uid || !Uid)) {*/ | |
352 | if(link(Hdr.h_name, Fullname) < 0) { /* missing dir.? */ | |
353 | unlink(Fullname); | |
354 | missdir(Fullname); | |
355 | if(link(Hdr.h_name, Fullname) < 0) { | |
356 | err( | |
357 | "Cannot link <%s> & <%s>\n", | |
358 | Hdr.h_name, Fullname); | |
359 | continue; | |
360 | } | |
361 | } | |
362 | set_time(Hdr.h_name, mklong(Hdr.h_mtime), mklong(Hdr.h_mtime)); | |
363 | goto ckverbose; | |
364 | } | |
365 | if(!(Ofile = openout(Fullname))) | |
366 | continue; | |
367 | if((Ifile = open(Hdr.h_name, 0)) < 0) { | |
368 | err("<%s> ?\n", Hdr.h_name); | |
369 | close(Ofile); | |
370 | continue; | |
371 | } | |
372 | filesz = Statb.st_size; | |
373 | for(; filesz > 0; filesz -= 512) { | |
374 | ct = filesz>512? 512: filesz; | |
375 | if(read(Ifile, Buf, ct) < 0) { | |
376 | err("Cannot read %s\n", Hdr.h_name); | |
377 | break; | |
378 | } | |
379 | if(Ofile) | |
380 | if(write(Ofile, Buf, ct) < 0) { | |
381 | err("Cannot write %s\n", Hdr.h_name); | |
382 | break; | |
383 | } | |
384 | ++Blocks; | |
385 | } | |
386 | close(Ifile); | |
387 | if(Acc_time) | |
388 | utime(Hdr.h_name, &Statb.st_atime); | |
389 | if(Ofile) { | |
390 | close(Ofile); | |
391 | set_time(Fullname, Statb.st_atime, mklong(Hdr.h_mtime)); | |
392 | ckverbose: | |
393 | if(Verbose) | |
394 | puts(Fullname); | |
395 | } | |
396 | } | |
397 | } | |
398 | err("%ld blocks\n", Blocks * (Bufsize>>9)); | |
399 | exit(0); | |
400 | } | |
401 | usage() | |
402 | { | |
403 | err("Usage: cpio -o[acvB] <name-list >collection\n%s\n%s\n", | |
404 | " cpio -i[cdmrstuvB6] [pattern ...] <collection", | |
405 | " cpio -p[adlmruv] directory <name-list"); | |
406 | exit(2); | |
407 | } | |
408 | ||
409 | getname() | |
410 | { | |
411 | register char *namep = Name; | |
412 | long tlong; | |
413 | ||
414 | for(;;) { | |
415 | if(gets(namep) == NULL) | |
416 | return 0; | |
417 | if(*namep == '.' && namep[1] == '/') | |
418 | namep += 2; | |
419 | strcpy(Hdr.h_name, namep); | |
420 | if(stat(namep, &Statb) < 0) { | |
421 | err("< %s > ?\n", Hdr.h_name); | |
422 | continue; | |
423 | } | |
424 | A_directory = (Statb.st_mode & Filetype) == S_IFDIR; | |
425 | A_special = ((Statb.st_mode & Filetype) == S_IFBLK) | |
426 | || ((Statb.st_mode & Filetype) == S_IFCHR); | |
427 | #ifdef RT | |
428 | if(MERT) { | |
429 | One_extent = (Statb.st_mode & Filetype) == S_IF1EXT; | |
430 | Multi_extent = (Statb.st_mode & Filetype) == S_IFEXT; | |
431 | } | |
432 | #endif | |
433 | Hdr.h_magic = MAGIC; | |
434 | Hdr.h_namesize = strlen(Hdr.h_name) + 1; | |
435 | Hdr.h_uid = Statb.st_uid; | |
436 | Hdr.h_gid = Statb.st_gid; | |
437 | Hdr.h_dev = Statb.st_dev; | |
438 | Hdr.h_ino = Statb.st_ino; | |
439 | Hdr.h_mode = Statb.st_mode; | |
440 | MKSHORT(Hdr.h_mtime, Statb.st_mtime); | |
441 | Hdr.h_nlink = Statb.st_nlink; | |
442 | tlong = Hdr.h_mode & S_IFREG? Statb.st_size: 0L; | |
443 | MKSHORT(Hdr.h_filesize, tlong); | |
444 | Hdr.h_rdev = Statb.st_rdev; | |
445 | if(Cflag) | |
446 | bintochar(tlong); | |
447 | return 1; | |
448 | } | |
449 | } | |
450 | ||
451 | bintochar(t) | |
452 | long t; | |
453 | { | |
454 | sprintf(Chdr,"%.6o%.6ho%.6ho%.6ho%.6ho%.6ho%.6ho%.6ho%.11lo%.6ho%.11lo%s", | |
455 | MAGIC,Statb.st_dev,Statb.st_ino,Statb.st_mode,Statb.st_uid, | |
456 | Statb.st_gid,Statb.st_nlink,Statb.st_rdev & 00000177777, | |
457 | Statb.st_mtime,(short)strlen(Hdr.h_name)+1,t,Hdr.h_name); | |
458 | } | |
459 | ||
460 | chartobin() | |
461 | { | |
462 | sscanf(Chdr,"%6o%6ho%6ho%6ho%6ho%6ho%6ho%6ho%11lo%6ho%11lo", | |
463 | &Hdr.h_magic,&Hdr.h_dev,&Hdr.h_ino,&Hdr.h_mode,&Hdr.h_uid, | |
464 | &Hdr.h_gid,&Hdr.h_nlink,&Hdr.h_rdev,&Longtime,&Hdr.h_namesize, | |
465 | &Longfile); | |
466 | MKSHORT(Hdr.h_filesize, Longfile); | |
467 | MKSHORT(Hdr.h_mtime, Longtime); | |
468 | } | |
469 | ||
470 | gethdr() | |
471 | { | |
472 | ||
473 | if ( Cflag ) { | |
474 | readhdr(Chdr,CHARS); | |
475 | chartobin(); | |
476 | } | |
477 | else | |
478 | bread(&Hdr, HDRSIZE); | |
479 | ||
480 | if(Hdr.h_magic != MAGIC) { | |
81fbeb32 | 481 | err("Out of phase--get help\n"); |
530bfa14 KM |
482 | exit(2); |
483 | } | |
484 | if(!Cflag) | |
485 | bread(Hdr.h_name, Hdr.h_namesize); | |
486 | else | |
487 | readhdr(Hdr.h_name, Hdr.h_namesize); | |
488 | if(Swap) | |
489 | swap(Hdr.h_name, Hdr.h_namesize); | |
490 | if(EQ(Hdr.h_name, "TRAILER!!!")) | |
491 | return 0; | |
492 | A_directory = (Hdr.h_mode & Filetype) == S_IFDIR; | |
493 | A_special =((Hdr.h_mode & Filetype) == S_IFBLK) | |
494 | || ((Hdr.h_mode & Filetype) == S_IFCHR); | |
495 | #ifdef RT | |
496 | if( (MERT) && (((Hdr.h_mode & Filetype) == S_IF1EXT) | |
497 | || ((Hdr.h_mode & Filetype) == S_IFEXT))) { | |
498 | One_extent = (Hdr.h_mode & Filetype) == S_IF1EXT; | |
499 | Multi_extent = (Hdr.h_mode & Filetype) == S_IFEXT; | |
500 | Actual_size[0] = Hdr.h_filesize[0]; | |
501 | Actual_size[1] = Hdr.h_filesize[1]; | |
502 | bread(&Hdr, HDRSIZE); | |
503 | if(Hdr.h_magic != MAGIC) { | |
81fbeb32 | 504 | err("Out of phase--get MERT help\n"); |
530bfa14 KM |
505 | exit(2); |
506 | } | |
507 | bread(Hdr.h_name, Hdr.h_namesize); | |
508 | } | |
509 | #endif | |
510 | return 1; | |
511 | } | |
512 | ||
513 | ckname(namep) | |
514 | register char *namep; | |
515 | { | |
516 | ++Select; | |
517 | if(!nmatch(namep, Pattern)) { | |
518 | Select = 0; | |
519 | return 0; | |
520 | } | |
521 | if(Rename && !A_directory) { | |
522 | fprintf(Wtty, "Rename <%s>\n", namep); | |
523 | fflush(Wtty); | |
524 | fgets(namep, 128, Rtty); | |
525 | if(feof(Rtty)) | |
526 | exit(2); | |
527 | namep[strlen(namep) - 1] = '\0'; | |
528 | if(EQ(namep, "")) { | |
529 | printf("Skipped\n"); | |
530 | return 0; | |
531 | } | |
532 | } | |
533 | return !Toc; | |
534 | } | |
535 | ||
536 | openout(namep) | |
537 | register char *namep; | |
538 | { | |
539 | register f; | |
540 | register char *np; | |
541 | ||
542 | if(!strncmp(namep, "./", 2)) | |
543 | namep += 2; | |
544 | np = namep; | |
545 | if(Option == IN) | |
546 | Cd_name = namep = cd(namep); | |
547 | if(A_directory) { | |
548 | if(!Dir | |
549 | || Rename | |
550 | || EQ(namep, ".") | |
551 | || EQ(namep, "..") | |
552 | || stat(namep, &Xstatb) == 0) | |
553 | return 0; | |
554 | ||
555 | if(!makdir(namep)) { | |
556 | missdir(namep); | |
557 | } | |
558 | ret: | |
559 | chmod(namep, Hdr.h_mode); | |
560 | if(Uid == 0) | |
561 | chown(namep, Hdr.h_uid, Hdr.h_gid); | |
562 | set_time(namep, mklong(Hdr.h_mtime), mklong(Hdr.h_mtime)); | |
563 | return 0; | |
564 | } | |
565 | if(Hdr.h_nlink > 1) | |
566 | if(!postml(namep, np)) | |
567 | return 0; | |
568 | if(A_special) { | |
569 | s_again: | |
570 | if(mknod(namep, Hdr.h_mode, Hdr.h_rdev) < 0) { | |
571 | if(missdir(namep)) | |
572 | goto s_again; | |
573 | err("Cannot mknod <%s>\n", namep); | |
574 | return 0; | |
575 | } | |
576 | goto ret; | |
577 | } | |
578 | if(stat(namep, &Xstatb) == 0) { | |
579 | if(Uncond && !(Xstatb.st_mode & S_IWRITE)) | |
580 | unlink(namep); | |
581 | if(!Uncond && (mklong(Hdr.h_mtime) < Xstatb.st_mtime)) { | |
582 | err("current <%s> newer\n", namep); | |
583 | return 0; | |
584 | } | |
585 | } | |
586 | if(Option == PASS | |
587 | && Hdr.h_ino == Xstatb.st_ino | |
588 | && Hdr.h_dev == Xstatb.st_dev) { | |
589 | err("Attempt to pass file to self!\n"); | |
590 | exit(2); | |
591 | } | |
592 | #ifdef RT | |
593 | one_again: | |
594 | if(One_extent || Multi_extent) { | |
595 | if((f = falloc(namep, Hdr.h_mode, Hdr.h_filesize[0].long_size)) < 0) { | |
596 | if(missdir(namep)) | |
597 | goto one_again; | |
598 | err("Cannot create <%s> (errno:%d)\n", namep, errno); | |
599 | return 0; | |
600 | } | |
601 | if(filespace < Hdr.h_filesize[0].long_size){ | |
602 | err("Cannot create contiguous file <%s> proper size\n", namep); | |
603 | err(" <%s> will be created as a regular file\n", namep); | |
604 | if(unlink(Fullname) != 0) | |
605 | err("<%s> not removed\n", namep); | |
606 | New_mode = Hdr.h_mode & Remove_mode; | |
607 | New_mode = New_mode | S_IFREG; | |
608 | once_again: | |
609 | if((f = creat(namep, New_mode)) < 0){ | |
610 | if(missdir(namep)) | |
611 | goto once_again; | |
612 | err("Cannot create <%s> (errno:%d)\n", namep, errno); | |
613 | return (0); | |
614 | } | |
615 | } | |
616 | } | |
617 | #endif | |
618 | #ifdef RT | |
619 | if(MERT && (One_extent || Multi_extent)) | |
620 | goto skip_c; | |
621 | #endif | |
622 | c_again: | |
623 | if((f = creat(namep, Hdr.h_mode)) < 0) { | |
624 | if(missdir(namep)) | |
625 | goto c_again; | |
626 | err("Cannot create <%s> (errno:%d)\n", namep, errno); | |
627 | return 0; | |
628 | } | |
629 | #ifdef RT | |
630 | skip_c: | |
631 | #endif | |
632 | if(Uid == 0) | |
633 | chown(namep, Hdr.h_uid, Hdr.h_gid); | |
634 | return f; | |
635 | } | |
636 | ||
637 | bread(b, c) | |
638 | register c; | |
639 | register short *b; | |
640 | { | |
641 | static nleft = 0; | |
642 | static short *ip; | |
643 | register short *p = ip; | |
644 | ||
645 | c = (c+1)>>1; | |
646 | while(c--) { | |
647 | if(!nleft) { | |
648 | again: | |
649 | if(read(Input, Dbuf, Bufsize)!=Bufsize) { | |
650 | Input = chgreel(0, Input); | |
651 | goto again; | |
652 | } | |
653 | nleft = Bufsize >> 1; | |
654 | p = Dbuf; | |
655 | ++Blocks; | |
656 | } | |
657 | *b++ = *p++; | |
658 | --nleft; | |
659 | } | |
660 | ip = p; | |
661 | } | |
662 | ||
663 | readhdr(b, c) | |
664 | register c; | |
665 | register char *b; | |
666 | { | |
667 | static nleft = 0; | |
668 | static char *ip; | |
669 | register char *p = ip; | |
670 | ||
671 | while(c--) { | |
672 | if(!nleft) { | |
673 | again: | |
674 | if(read(Input, Cbuf, Bufsize) != Bufsize) { | |
675 | Input = chgreel(0, Input); | |
676 | goto again; | |
677 | } | |
678 | nleft = Bufsize; | |
679 | p = Cbuf; | |
680 | ++Blocks; | |
681 | } | |
682 | *b++ = *p++; | |
683 | --nleft; | |
684 | } | |
685 | ip = p; | |
686 | } | |
687 | ||
688 | bwrite(rp, c) | |
689 | register short *rp; | |
690 | register c; | |
691 | { | |
692 | register short *wp = Wp; | |
693 | ||
694 | c = (c+1) >> 1; | |
695 | while(c--) { | |
696 | if(!Wct) { | |
697 | again: | |
698 | if(write(Output, Dbuf, Bufsize)<0) { | |
699 | Output = chgreel(1, Output); | |
700 | goto again; | |
701 | } | |
702 | Wct = Bufsize >> 1; | |
703 | wp = Dbuf; | |
704 | ++Blocks; | |
705 | } | |
706 | *wp++ = *rp++; | |
707 | --Wct; | |
708 | } | |
709 | Wp = wp; | |
710 | } | |
711 | writehdr(rp,c) | |
712 | register char *rp; | |
713 | register c; | |
714 | { | |
715 | register char *cp = Cp; | |
716 | ||
717 | while(c--) { | |
718 | if(!Wc) { | |
719 | again: | |
720 | if(write(Output,Cbuf,Bufsize)<0) { | |
721 | Output = chgreel(1, Output); | |
722 | goto again; | |
723 | } | |
724 | Wc = Bufsize; | |
725 | cp = Cbuf; | |
726 | ++Blocks; | |
727 | } | |
728 | *cp++ = *rp++; | |
729 | --Wc; | |
730 | } | |
731 | Cp = cp; | |
732 | } | |
733 | ||
734 | ||
735 | postml(namep, np) | |
736 | register char *namep, *np; | |
737 | { | |
738 | register i; | |
739 | static struct ml { | |
740 | short m_dev, | |
741 | m_ino; | |
742 | char m_name[2]; | |
743 | } *ml[LINKS]; | |
744 | static mlinks = 0; | |
745 | char *mlp; | |
746 | ||
747 | for(i = 0; i < mlinks; ++i) { | |
748 | if(mlinks == LINKS) break; | |
749 | if(ml[i]->m_ino==Hdr.h_ino && | |
750 | ml[i]->m_dev==Hdr.h_dev) { | |
751 | if(Verbose) | |
752 | printf("%s linked to %s\n", ml[i]->m_name, | |
753 | np); | |
754 | unlink(namep); | |
755 | if(Option == IN) { | |
756 | Fullname[Pathend] = '\0'; | |
757 | strcat(Fullname, ml[i]->m_name); | |
758 | mlp = Fullname; | |
759 | } else | |
760 | mlp = ml[i]->m_name; | |
761 | l_again: | |
762 | if(link(mlp, namep) < 0) { | |
763 | if(missdir(np)) | |
764 | goto l_again; | |
765 | err("Cannot link <%s>&<%s>.\n", | |
766 | ml[i]->m_name, np); | |
767 | } | |
768 | set_time(namep, mklong(Hdr.h_mtime), mklong(Hdr.h_mtime)); | |
769 | return 0; | |
770 | } | |
771 | } | |
772 | if(mlinks == LINKS | |
773 | || !(ml[mlinks] = (struct ml *)malloc(strlen(np) + 2 + sizeof(struct ml)))) { | |
774 | static int first=1; | |
775 | ||
776 | if(first) | |
777 | if(mlinks == LINKS) | |
778 | err("Too many links\n"); | |
779 | else | |
780 | err("No memory for links\n"); | |
781 | mlinks = LINKS; | |
782 | first = 0; | |
783 | return 1; | |
784 | } | |
785 | ml[mlinks]->m_dev = Hdr.h_dev; | |
786 | ml[mlinks]->m_ino = Hdr.h_ino; | |
787 | strcpy(ml[mlinks]->m_name, np); | |
788 | ++mlinks; | |
789 | return 1; | |
790 | } | |
791 | ||
792 | pentry(namep) | |
793 | register char *namep; | |
794 | { | |
795 | ||
796 | register i; | |
797 | static short lastid = -1; | |
798 | #include <pwd.h> | |
799 | static struct passwd *pw; | |
800 | struct passwd *getpwuid(); | |
801 | static char tbuf[32]; | |
802 | ||
803 | printf("%-7o", Hdr.h_mode & 0177777); | |
804 | if(lastid == Hdr.h_uid) | |
805 | printf("%-6s", pw->pw_name); | |
806 | else { | |
807 | setpwent(); | |
808 | if(pw = getpwuid(Hdr.h_uid)) { | |
809 | printf("%-6s", pw->pw_name); | |
810 | lastid = Hdr.h_uid; | |
811 | } else { | |
812 | printf("%-6d", Hdr.h_uid); | |
813 | lastid = -1; | |
814 | } | |
815 | } | |
816 | printf("%7ld ", mklong(Hdr.h_filesize)); | |
817 | U.l = mklong(Hdr.h_mtime); | |
818 | strcpy(tbuf, ctime(&U.l)); | |
819 | tbuf[24] = '\0'; | |
820 | printf(" %s %s\n", &tbuf[4], namep); | |
821 | } | |
822 | ||
823 | nmatch(s, pat) | |
824 | char *s, **pat; | |
825 | { | |
826 | if(EQ(*pat, "*")) | |
827 | return 1; | |
828 | while(*pat) { | |
829 | if((**pat == '!' && !gmatch(s, *pat+1)) | |
830 | || gmatch(s, *pat)) | |
831 | return 1; | |
832 | ++pat; | |
833 | } | |
834 | return 0; | |
835 | } | |
836 | gmatch(s, p) | |
837 | register char *s, *p; | |
838 | { | |
839 | register int c; | |
840 | register cc, ok, lc, scc; | |
841 | ||
842 | scc = *s; | |
843 | lc = 077777; | |
844 | switch (c = *p) { | |
845 | ||
846 | case '[': | |
847 | ok = 0; | |
848 | while (cc = *++p) { | |
849 | switch (cc) { | |
850 | ||
851 | case ']': | |
852 | if (ok) | |
853 | return(gmatch(++s, ++p)); | |
854 | else | |
855 | return(0); | |
856 | ||
857 | case '-': | |
858 | ok |= (lc <= scc & scc <= (cc=p[1])); | |
859 | } | |
860 | if (scc==(lc=cc)) ok++; | |
861 | } | |
862 | return(0); | |
863 | ||
864 | case '?': | |
865 | caseq: | |
866 | if(scc) return(gmatch(++s, ++p)); | |
867 | return(0); | |
868 | case '*': | |
869 | return(umatch(s, ++p)); | |
870 | case 0: | |
871 | return(!scc); | |
872 | } | |
873 | if (c==scc) goto caseq; | |
874 | return(0); | |
875 | } | |
876 | ||
877 | umatch(s, p) | |
878 | register char *s, *p; | |
879 | { | |
880 | if(*p==0) return(1); | |
881 | while(*s) | |
882 | if (gmatch(s++,p)) return(1); | |
883 | return(0); | |
884 | } | |
885 | ||
886 | makdir(namep) | |
887 | register char *namep; | |
888 | { | |
889 | static status; | |
890 | register pid; | |
891 | ||
892 | if(pid = fork()) | |
893 | while(wait(&status) != pid); | |
894 | else { | |
895 | close(2); | |
896 | execl("/bin/mkdir", "mkdir", namep, 0); | |
897 | exit(2); | |
898 | } | |
899 | return ((status>>8) & 0377)? 0: 1; | |
900 | } | |
901 | ||
902 | swap(buf, ct) | |
903 | register ct; | |
904 | register union swp { short shortw; char charv[2]; } *buf; | |
905 | { | |
906 | register char c; | |
907 | ||
908 | ct = (ct + 1) >> 1; | |
909 | ||
910 | while(ct--) { | |
911 | c = buf->charv[0]; | |
912 | buf->charv[0] = buf->charv[1]; | |
913 | buf->charv[1] = c; | |
914 | ++buf; | |
915 | } | |
916 | } | |
917 | set_time(namep, atime, mtime) | |
918 | register *namep; | |
919 | long atime, mtime; | |
920 | { | |
921 | static long timevec[2]; | |
922 | ||
923 | if(!Mod_time) | |
924 | return; | |
925 | timevec[0] = atime; | |
926 | timevec[1] = mtime; | |
927 | utime(namep, timevec); | |
928 | } | |
929 | chgreel(x, fl) | |
930 | { | |
931 | register f; | |
932 | char str[22]; | |
933 | FILE *devtty; | |
934 | struct stat statb; | |
935 | ||
936 | err("errno: %d, ", errno); | |
937 | err("Can't %s\n", x? "write output": "read input"); | |
938 | fstat(fl, &statb); | |
939 | #ifdef RT | |
940 | if(!MERT){ | |
941 | if((statb.st_mode&S_IFMT) != S_IFCHR) | |
942 | exit(2); | |
943 | } | |
944 | else if((statb.st_mode & (S_IFBLK|S_IFREC))==0) | |
945 | exit(2); | |
946 | #endif | |
947 | #ifndef RT | |
948 | if((statb.st_mode&S_IFMT) != S_IFCHR) | |
949 | exit(2); | |
950 | #endif | |
951 | again: | |
952 | err("If you want to go on, type device/file name when ready\n"); | |
953 | devtty = fopen("/dev/tty", "r"); | |
954 | fgets(str, 20, devtty); | |
955 | str[strlen(str) - 1] = '\0'; | |
956 | if(!*str) | |
957 | exit(2); | |
958 | close(fl); | |
959 | if((f = open(str, x? 1: 0)) < 0) { | |
960 | err("That didn't work"); | |
961 | fclose(devtty); | |
962 | goto again; | |
963 | } | |
964 | return f; | |
965 | } | |
966 | missdir(namep) | |
967 | register char *namep; | |
968 | { | |
969 | register char *np; | |
970 | register ct = 0; | |
971 | ||
972 | if(!Dir) | |
973 | return 0; | |
974 | for(np = namep; *np; ++np) | |
975 | if(*np == '/') { | |
976 | *np = '\0'; | |
977 | if(stat(namep, &Xstatb) == -1) | |
978 | makdir(namep), ++ct; | |
979 | *np = '/'; | |
980 | } | |
981 | return ct; | |
982 | } | |
983 | err(a, b, c) | |
984 | { | |
985 | fprintf(stderr, a, b, c); | |
986 | } | |
987 | pwd() | |
988 | { | |
989 | FILE *dir; | |
990 | ||
991 | dir = popen("pwd", "r"); | |
992 | fgets(Fullname, 256, dir); | |
993 | if(pclose(dir)) | |
994 | exit(2); | |
995 | Pathend = strlen(Fullname); | |
996 | Fullname[Pathend - 1] = '/'; | |
997 | } | |
998 | char * cd(n) | |
999 | register char *n; | |
1000 | { | |
1001 | char *p_save = Name, *n_save = n, *p_end = 0; | |
1002 | register char *p = Name; | |
1003 | static char dotdot[]="../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../"; | |
1004 | int slashes; | |
1005 | ||
1006 | if(*n == '/') /* don't try to chdir on full pathnames */ | |
1007 | return n; | |
1008 | for(; *p && *n == *p; ++p, ++n) { /* whatever part of strings == */ | |
1009 | if(*p == '/') | |
1010 | p_save = p+1, n_save = n+1; | |
1011 | } | |
1012 | ||
1013 | p = p_save; | |
1014 | *p++ = '\0'; | |
1015 | for(slashes = 0; *p; ++p) { /* if prev is longer, chdir("..") */ | |
1016 | if(*p == '/') | |
1017 | ++slashes; | |
1018 | } | |
1019 | p = p_save; | |
1020 | if(slashes) { | |
1021 | slashes = slashes * 3 - 1; | |
1022 | dotdot[slashes] = '\0'; | |
1023 | chdir(dotdot); | |
1024 | dotdot[slashes] = '/'; | |
1025 | } | |
1026 | ||
1027 | n = n_save; | |
1028 | for(; *n; ++n, ++p) { | |
1029 | *p = *n; | |
1030 | if(*n == '/') | |
1031 | p_end = p+1, n_save = n+1; | |
1032 | } | |
1033 | *p = '\0'; | |
1034 | ||
1035 | if(p_end) { | |
1036 | *p_end = '\0'; | |
1037 | if(chdir(p_save) == -1) { | |
1038 | if(!missdir(p_save)) { | |
1039 | cd_err: | |
1040 | err("Cannot chdir (no `d' option)\n"); | |
1041 | exit(2); | |
1042 | } else if(chdir(p_save) == -1) | |
1043 | goto cd_err; | |
1044 | } | |
1045 | } else | |
1046 | *p_save = '\0'; | |
1047 | return n_save; | |
1048 | } | |
1049 | #ifdef RT | |
1050 | actsize() | |
1051 | { | |
1052 | } | |
1053 | #endif |