Commit | Line | Data |
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bc04334b | 1 | static char *sccsid = "@(#)arff.c 4.2 (Berkeley) %G%"; |
9323c1d3 BJ |
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; | |
bc04334b | 111 | char response[128]; |
9323c1d3 BJ |
112 | tty = open("/dev/tty",2); |
113 | write(tty,SURE,sizeof(SURE)); | |
bc04334b | 114 | read(tty,response,128); |
9323c1d3 BJ |
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 | } |