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fa61ea79 | 1 | static char *sccsid = "@(#)arff.c 4.3 (Berkeley) 81/03/22"; |
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 | |
fa61ea79 | 31 | #define RT_DIRSIZE 31 /* max # of directory segments */ |
9323c1d3 BJ |
32 | struct rt_head { |
33 | short rt_numseg; /*number of segments available*/ | |
34 | short rt_nxtseg; /*segment no of next log. seg */ | |
35 | short rt_lstseg; /*highest seg currenltly open */ | |
36 | unsigned short rt_entpad; /*extra words/dir. entry */ | |
37 | short rt_stfile; /*block no where files begin */ | |
38 | }; | |
39 | struct rt_dir { | |
40 | struct rt_head rt_axhead; | |
41 | struct rt_ent rt_ents[72]; | |
42 | char _dirpad[6]; | |
43 | }; | |
fa61ea79 | 44 | extern struct rt_dir rt_dir[RT_DIRSIZE]; |
9323c1d3 BJ |
45 | extern int rt_entsiz; |
46 | extern int floppydes; | |
47 | extern char *rt_last; | |
48 | typedef struct fldope { | |
49 | int startad; | |
50 | int count; | |
51 | struct rt_ent *rtdope; | |
52 | } FLDOPE; | |
53 | FLDOPE *lookup(); | |
54 | #define rt(p) ((struct rt_ent *) p ) | |
55 | #define Ain1 03100 | |
56 | #define Ain2 050 | |
57 | #define flag(c) (flg[(c) - 'a']) | |
58 | ||
59 | char *man = { "rxtd" }; | |
60 | ||
61 | char zeroes[512]; | |
62 | extern char *val; | |
63 | extern char table[256]; | |
fa61ea79 BJ |
64 | struct rt_dir |
65 | rt_dir[RT_DIRSIZE] = {{4,0,1,0,14},{0,RT_NULL,{0,0,0},494,0}, {0,RT_ESEG}}; | |
9323c1d3 BJ |
66 | int rt_entsiz; |
67 | int rt_nleft; | |
fa61ea79 | 68 | struct rt_ent *rt_curend[RT_DIRSIZE]; |
9323c1d3 BJ |
69 | int floppydes; |
70 | int dirdirty; | |
71 | char *rt_last; | |
72 | char *defdev = "/dev/floppy"; | |
73 | ||
74 | char *opt = { "vf" }; | |
75 | ||
76 | int signum[] = {SIGHUP, SIGINT, SIGQUIT, 0}; | |
77 | long lseek(); | |
78 | int rcmd(); | |
79 | int dcmd(); | |
80 | int xcmd(); | |
81 | int tcmd(); | |
82 | int (*comfun)(); | |
83 | char flg[26]; | |
84 | char **namv; | |
85 | int namc; | |
86 | int file; | |
87 | ||
88 | ||
89 | main(argc, argv) | |
90 | char *argv[]; | |
91 | { | |
92 | register char *cp; | |
93 | ||
94 | /*register i; | |
95 | for(i=0; signum[i]; i++) | |
96 | if(signal(signum[i], SIG_IGN) != SIG_IGN) | |
97 | signal(signum[i], sigdone);*/ | |
98 | if(argc < 2) | |
99 | usage(); | |
100 | cp = argv[1]; | |
101 | for(cp = argv[1]; *cp; cp++) | |
102 | switch(*cp) { | |
103 | case 'm': | |
104 | case 'v': | |
105 | case 'u': | |
106 | case 'w': | |
107 | flg[*cp - 'a']++; | |
108 | continue; | |
109 | case 'c': | |
110 | { | |
111 | #define SURE "Are you sure you want to clobber the floppy?\n" | |
112 | int tty; | |
bc04334b | 113 | char response[128]; |
9323c1d3 BJ |
114 | tty = open("/dev/tty",2); |
115 | write(tty,SURE,sizeof(SURE)); | |
bc04334b | 116 | read(tty,response,128); |
9323c1d3 BJ |
117 | if(*response!='y') |
118 | exit(50); | |
119 | flag('c')++; | |
120 | close(tty); | |
121 | } | |
122 | dirdirty++; | |
123 | continue; | |
124 | ||
125 | case 'r': | |
126 | setcom(rcmd); | |
127 | flag('r')++; | |
128 | continue; | |
129 | ||
130 | case 'd': | |
131 | setcom(dcmd); | |
132 | flag('d')++; | |
133 | continue; | |
134 | ||
135 | case 'x': | |
136 | setcom(xcmd); | |
137 | continue; | |
138 | ||
139 | case 't': | |
140 | setcom(tcmd); | |
141 | continue; | |
142 | ||
143 | case 'f': | |
144 | defdev = argv[2]; | |
145 | argv++; | |
146 | argc--; | |
147 | continue; | |
148 | ||
149 | ||
150 | default: | |
151 | fprintf(stderr, "arff: bad option `%c'\n", *cp); | |
152 | exit(1); | |
153 | } | |
154 | namv = argv+2; | |
155 | namc = argc-2; | |
156 | if(comfun == 0) { | |
157 | if(flg['u'-'a'] == 0) { | |
158 | fprintf(stderr, "arff: one of [%s] must be specified\n", man); | |
159 | exit(1); | |
160 | } | |
161 | setcom(rcmd); | |
162 | } | |
163 | (*comfun)(); | |
164 | exit(notfound()); | |
165 | } | |
166 | ||
167 | setcom(fun) | |
168 | int (*fun)(); | |
169 | { | |
170 | ||
171 | if(comfun != 0) { | |
172 | fprintf(stderr, "arff: only one of [%s] allowed\n", man); | |
173 | exit(1); | |
174 | } | |
175 | comfun = fun; | |
176 | } | |
177 | ||
178 | ||
179 | ||
180 | ||
181 | ||
182 | ||
183 | ||
184 | ||
185 | usage() | |
186 | { | |
187 | printf("usage: ar [%s][%s] archive files ...\n", opt, man); | |
188 | exit(1); | |
189 | } | |
190 | ||
191 | ||
192 | ||
193 | notfound() | |
194 | { | |
195 | register i, n; | |
196 | ||
197 | n = 0; | |
198 | for(i=0; i<namc; i++) | |
199 | if(namv[i]) { | |
200 | fprintf(stderr, "arff: %s not found\n", namv[i]); | |
201 | n++; | |
202 | } | |
203 | return(n); | |
204 | } | |
205 | ||
206 | ||
207 | ||
208 | phserr() | |
209 | { | |
210 | ||
211 | fprintf(stderr, "arff: phase error on %s\n", file); | |
212 | } | |
213 | ||
214 | mesg(c) | |
215 | { | |
216 | ||
217 | if(flg['v'-'a']) | |
218 | if(c != 'c' || flg['v'-'a'] > 1) | |
219 | printf("%c - %s\n", c, file); | |
220 | } | |
221 | ||
222 | tcmd() | |
223 | { | |
224 | register char *de; | |
fa61ea79 BJ |
225 | int segnum; |
226 | register char *last; | |
9323c1d3 BJ |
227 | FLDOPE *lookup(), *dope; |
228 | int nleft; register i; | |
229 | register struct rt_ent *rde; | |
230 | ||
231 | rt_init(); | |
232 | if(namc==0) | |
fa61ea79 BJ |
233 | for (segnum=0; segnum != -1; /* for all dir. segments */ |
234 | segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { | |
235 | last = rt_last + segnum*2*RT_BLOCK; | |
236 | for(de=((char *)&rt_dir[segnum])+10; de <= last; | |
237 | de += rt_entsiz) { | |
9323c1d3 | 238 | if(rtls(rt(de))) { |
fa61ea79 BJ |
239 | nleft = (last - de) / rt_entsiz; |
240 | printf("\n%d entries remaining",nleft); | |
241 | printf(" in directory segment %d.\n",segnum+1); | |
9323c1d3 BJ |
242 | break; |
243 | } | |
244 | } | |
fa61ea79 | 245 | } |
9323c1d3 BJ |
246 | else |
247 | for(i = 0; i < namc; i++) { | |
248 | if(dope = lookup(namv[i])) { | |
249 | rde = dope->rtdope; | |
250 | rtls(rde); | |
251 | namv[i] = 0; | |
252 | } | |
253 | } | |
254 | } | |
255 | rtls(de) | |
256 | register struct rt_ent *de; | |
257 | { | |
258 | int month,day,year; | |
259 | char name[12], ext[4]; | |
260 | ||
261 | if(flg['v'-'a']) | |
262 | switch(de->rt_stat) { | |
263 | case RT_TEMP: | |
264 | printf("Tempfile:\n"); | |
265 | case RT_FILE: | |
266 | unrad50(2,de->rt_name,name); | |
267 | unrad50(1,&(de->rt_name[2]),ext); | |
268 | day = de->rt_date.rt_dy; | |
269 | year = de->rt_date.rt_yr + 72; | |
270 | month = de->rt_date.rt_mo; | |
271 | printf("%6.6s %3.3s %02d/%02d/%02d %d\n",name, | |
272 | ext,month,day,year,de->rt_len); | |
273 | break; | |
274 | ||
275 | case RT_NULL: | |
276 | printf("%-25.9s %d\n","<UNUSED>",de->rt_len); | |
277 | break; | |
278 | ||
279 | case RT_ESEG: | |
280 | return(1); | |
281 | } | |
282 | else { | |
283 | switch(de->rt_stat) { | |
284 | case RT_TEMP: | |
285 | case RT_FILE: | |
286 | sunrad50(name,de->rt_name); | |
287 | printf(name);putchar('\n'); | |
288 | break; | |
289 | ||
290 | case RT_ESEG: | |
291 | return(1); | |
292 | ||
293 | case RT_NULL: | |
294 | ; | |
295 | } | |
296 | } | |
297 | return(0); | |
298 | } | |
299 | xcmd() | |
300 | { | |
301 | register char *de; | |
fa61ea79 BJ |
302 | int segnum; |
303 | register char *last; | |
9323c1d3 BJ |
304 | char name[12]; |
305 | register int i; | |
306 | ||
307 | rt_init(); | |
308 | if(namc==0) | |
fa61ea79 BJ |
309 | for (segnum=0; segnum != -1; /* for all dir. segments */ |
310 | segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { | |
311 | last = rt_last + segnum*2*RT_BLOCK; | |
312 | for(de=((char *)&rt_dir[segnum])+10; de <= last; | |
313 | de += rt_entsiz) { | |
9323c1d3 BJ |
314 | sunrad50(name,rt(de)->rt_name); |
315 | rtx(name); | |
316 | } | |
fa61ea79 | 317 | } |
9323c1d3 BJ |
318 | |
319 | else | |
320 | for(i = 0; i < namc; i++) | |
321 | if(rtx(namv[i])==0) namv[i] = 0; | |
322 | } | |
323 | rtx(name) | |
324 | char *name; | |
325 | { | |
326 | register FLDOPE *dope; | |
327 | FLDOPE *lookup(); | |
328 | register startad, count; | |
329 | int file; char buff[512]; | |
330 | ||
331 | ||
332 | if(dope = lookup(name)) { | |
333 | if(flg['v' - 'a']) | |
334 | rtls(dope->rtdope); | |
335 | else | |
336 | printf("x - %s\n",name); | |
337 | ||
338 | file = creat(name, 0666); | |
339 | if(file < 0) return(1); | |
340 | count = dope->count; | |
341 | startad = dope->startad; | |
342 | for( ; count > 0 ; count -= 512) { | |
343 | lread(startad,512,buff); | |
344 | write(file,buff,512); | |
345 | startad += 512; | |
346 | } | |
347 | close(file); | |
348 | return(0); | |
349 | } | |
350 | return(1); | |
351 | } | |
352 | rt_init() | |
353 | { | |
354 | static initized = 0; | |
355 | register char *de; | |
fa61ea79 BJ |
356 | register i; |
357 | int mode, dirnum; | |
358 | register char *last; | |
9323c1d3 BJ |
359 | |
360 | if(initized) return; | |
361 | initized = 1; | |
362 | if(flag('c') || flag('d') || flag('r')) | |
363 | mode = 2; | |
364 | else | |
365 | mode = 0; | |
366 | if((floppydes = open(defdev,mode)) < 0) | |
367 | dbprintf("Floppy open failed\n"); | |
fa61ea79 BJ |
368 | if(flag('c')==0) { |
369 | lread(6*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir[0]); | |
370 | dirnum = rt_dir[0].rt_axhead.rt_numseg; | |
371 | if (dirnum > RT_DIRSIZE) { | |
372 | fprintf(stderr,"arff: too many directory segments\n"); | |
373 | exit(1); | |
374 | } | |
375 | for (i=1; i<dirnum; i++) | |
376 | lread((6+2*i)*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir[i]); | |
377 | } | |
9323c1d3 | 378 | |
fa61ea79 BJ |
379 | rt_entsiz = 2*rt_dir[0].rt_axhead.rt_entpad + 14; |
380 | rt_entsiz = 14; /* assume rt_entpad = 0 ??? */ | |
381 | rt_last = ((char *) &rt_dir[0]) + 10 + 1014/rt_entsiz*rt_entsiz; | |
382 | rt_nleft = 0; | |
383 | ||
384 | for (i=0; i<dirnum; i++) { | |
385 | last = rt_last + i*2*RT_BLOCK; | |
386 | for(de=((char *)&rt_dir[i])+10; de <= last; de += rt_entsiz) { | |
9323c1d3 | 387 | if(rt(de)->rt_stat==RT_ESEG) break; |
fa61ea79 BJ |
388 | } |
389 | rt_curend[i] = rt(de); | |
390 | rt_nleft += (last - de) / rt_entsiz; | |
9323c1d3 | 391 | } |
9323c1d3 BJ |
392 | } |
393 | ||
394 | static FLDOPE result; | |
395 | FLDOPE * | |
396 | lookup(name) | |
397 | char * name; | |
398 | { | |
399 | unsigned short rname[3]; | |
400 | register char *de; | |
fa61ea79 BJ |
401 | int segnum; |
402 | register char *last; | |
9323c1d3 BJ |
403 | register index; |
404 | ||
405 | srad50(name,rname); | |
406 | ||
407 | /* | |
408 | * Search for name, accumulate blocks in index | |
409 | */ | |
410 | rt_init(); | |
fa61ea79 BJ |
411 | for (segnum=0; segnum != -1; /* for all dir. segments */ |
412 | segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { | |
413 | index = 0; | |
414 | last = rt_last + segnum*2*RT_BLOCK; | |
415 | for(de=((char *)&rt_dir[segnum])+10; | |
416 | rt(de)->rt_stat != RT_ESEG; de += rt_entsiz) { | |
9323c1d3 BJ |
417 | switch(rt(de)->rt_stat) { |
418 | case RT_ESEG: | |
fa61ea79 | 419 | exit(1); |
9323c1d3 BJ |
420 | case RT_FILE: |
421 | case RT_TEMP: | |
422 | if(samename(rname,rt(de)->rt_name)) | |
423 | goto found; | |
424 | case RT_NULL: | |
425 | index += rt(de)->rt_len; | |
426 | } | |
fa61ea79 BJ |
427 | } |
428 | } | |
9323c1d3 BJ |
429 | return((FLDOPE *) 0); |
430 | found: result.count = rt(de)->rt_len * 512; | |
fa61ea79 | 431 | result.startad = 512 * (rt_dir[segnum].rt_axhead.rt_stfile + index); |
9323c1d3 BJ |
432 | result.rtdope = (struct rt_ent *) de; |
433 | return(&result); | |
434 | } | |
435 | static | |
436 | samename(a,b) | |
437 | unsigned short a[3],b[3]; | |
438 | { | |
439 | return( a[0]==b[0] && a[1]==b[1] && a[2]==b[2] ); | |
440 | } | |
441 | ||
442 | ||
443 | rad50(cp,out) | |
444 | register unsigned char *cp; | |
445 | unsigned short *out; | |
446 | { | |
447 | register index; | |
448 | register temp; | |
449 | ||
450 | for(index = 0;*cp; index++) { | |
451 | ||
452 | temp = Ain1 * table[*cp++]; | |
453 | if(*cp!=0) { | |
454 | temp += Ain2 * table[*cp++]; | |
455 | ||
456 | if(*cp!=0) | |
457 | temp += table[*cp++]; | |
458 | } | |
459 | ||
460 | out[index] = temp; | |
461 | } | |
462 | } | |
463 | #define reduce(x,p,q) \ | |
464 | (x = v[p/q], p %= q); | |
465 | ||
466 | unrad50(count,in,cp) | |
467 | unsigned short *in; | |
468 | register char *cp; | |
469 | { | |
470 | register i, temp; register unsigned char *v = (unsigned char *) val; | |
471 | ||
472 | for(i = 0; i < count; i++) { | |
473 | temp = in[i]; | |
474 | ||
475 | reduce (*cp++,temp,Ain1); | |
476 | reduce (*cp++,temp,Ain2); | |
477 | reduce (*cp++,temp,1); | |
478 | } | |
479 | *cp=0; | |
480 | } | |
481 | ||
482 | srad50(name,rname) | |
483 | register char * name; | |
484 | register unsigned short *rname; | |
485 | { | |
486 | register index; register char *cp; | |
487 | char file[7],ext[4]; | |
488 | /* | |
489 | * Find end of pathname | |
490 | */ | |
491 | for(cp = name; *cp++; ); | |
492 | while(cp >= name && *--cp != '/'); | |
493 | cp++; | |
494 | /* | |
495 | * Change to rad50 | |
496 | * | |
497 | */ | |
498 | for(index = 0; *cp; ){ | |
499 | file[index++] = *cp++; | |
500 | if(*cp=='.') { | |
501 | cp++; | |
502 | break; | |
503 | } | |
504 | if(index>=6) { | |
505 | break; | |
506 | } | |
507 | } | |
508 | file[index] = 0; | |
509 | for(index = 0; *cp; ){ | |
510 | ext[index++] = *cp++; | |
511 | if(*cp=='.' || index>=3) { | |
512 | break; | |
513 | } | |
514 | } | |
515 | ext[index]=0; | |
516 | rname[0] = 0; | |
517 | rname[1] = 0; | |
518 | rname[2] = 0; | |
519 | rad50((unsigned char *)file,rname); | |
520 | rad50((unsigned char *)ext,rname+2); | |
521 | } | |
522 | sunrad50(name,rname) | |
523 | unsigned short rname[3]; | |
524 | register char *name; | |
525 | { | |
526 | register char *cp, *cp2; | |
527 | char ext[4]; | |
528 | ||
529 | unrad50(2,rname,name); | |
530 | unrad50(1,rname + 2,ext); | |
531 | /* Jam name and extension together with a dot | |
532 | deleting white space */ | |
533 | for(cp = name; *cp++;);--cp; while(*--cp==' ' && cp>=name); | |
534 | *++cp = '.';cp++; | |
535 | for(cp2=ext; *cp2!=' ' && cp2 < ext + 3;) { | |
536 | *cp++ = *cp2++; | |
537 | } | |
538 | *cp=0; | |
539 | if(cp[-1]=='.') cp[-1] = 0; | |
540 | } | |
541 | ||
542 | static char *oval = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.@0123456789"; | |
543 | static char *val = " abcdefghijklmnopqrstuvwxyz$.@0123456789"; | |
544 | static char table[256] = { | |
545 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | |
546 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | |
547 | 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, | |
548 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, | |
549 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
550 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, | |
551 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
552 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, | |
553 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | |
554 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | |
555 | 0, 29, 29, 29, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 29, | |
556 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 29, 29, 29, 29, 29, 29, | |
557 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
558 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29, 29, | |
559 | 29, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
560 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 29, 29, 29 }; | |
561 | ||
562 | long trans(logical) | |
563 | register int logical; | |
564 | { | |
565 | /* Logical to physical adress translation */ | |
566 | register int sector, bytes, track; | |
567 | ||
568 | logical += 26 * 128; | |
569 | bytes = (logical & 127); | |
570 | logical >>= 7; | |
571 | sector = logical % 26; | |
572 | if(sector >= 13) | |
573 | sector = sector *2 +1; | |
574 | else | |
575 | sector *= 2; | |
576 | sector += 26 + ((track = (logical / 26)) - 1) * 6; | |
577 | sector %= 26; | |
578 | return( (((track *26) + sector) << 7) + bytes); | |
579 | } | |
580 | lread(startad,count,obuff) | |
581 | register startad, count; | |
582 | register char * obuff; | |
583 | { | |
584 | long trans(); | |
585 | extern floppydes; | |
586 | rt_init(); | |
587 | if(flg['m'-'a']==0) | |
588 | while( (count -= 128) >= 0) { | |
589 | lseek(floppydes, trans(startad), 0); | |
590 | read(floppydes,obuff,128); | |
591 | obuff += 128; | |
592 | startad += 128; | |
593 | } | |
594 | else | |
595 | while( (count -= 512) >= 0) { | |
596 | lseek(floppydes,(long) (startad), 0); | |
597 | read(floppydes,obuff,512); | |
598 | obuff += 512; | |
599 | startad += 512; | |
600 | } | |
601 | } | |
602 | lwrite(startad,count,obuff) | |
603 | register startad, count; | |
604 | register char * obuff; | |
605 | { | |
606 | long trans(); | |
607 | extern floppydes; | |
608 | rt_init(); | |
609 | if(flg['m'-'a']==0) | |
610 | while( (count -= 128) >= 0) { | |
611 | lseek(floppydes, trans(startad), 0); | |
612 | write(floppydes,obuff,128); | |
613 | obuff += 128; | |
614 | startad += 128; | |
615 | } | |
616 | else | |
617 | while( (count -= 512) >= 0) { | |
618 | lseek(floppydes,(long) (startad), 0); | |
619 | write(floppydes,obuff,512); | |
620 | obuff += 512; | |
621 | startad += 512; | |
622 | } | |
623 | } | |
624 | ||
625 | rcmd() | |
626 | { | |
627 | register int i; | |
fa61ea79 | 628 | int debug; |
9323c1d3 BJ |
629 | |
630 | rt_init(); | |
631 | if(namc>0) | |
632 | for(i = 0; i < namc; i++) | |
fa61ea79 BJ |
633 | if((debug = rtr(namv[i]))==0) namv[i]=0; |
634 | else printf("debug-rtr returns %d\n",debug); | |
9323c1d3 BJ |
635 | |
636 | ||
637 | } | |
638 | ||
639 | rtr(name) | |
640 | char *name; | |
641 | { | |
642 | register FLDOPE *dope; register struct rt_ent *de; | |
643 | struct stat buf; register struct stat *bufp = &buf; | |
fa61ea79 BJ |
644 | int segnum; |
645 | register char *last; | |
9323c1d3 BJ |
646 | |
647 | if(stat(name,bufp)<0) return(1); | |
648 | if(dope = lookup(name)) { | |
649 | /* can replace, no problem */ | |
650 | de = dope->rtdope; | |
651 | if(bufp->st_size <= (de->rt_len * 512)) | |
652 | printf("r - %s\n",name), | |
653 | toflop(name,bufp->st_size,dope); | |
654 | else { | |
655 | printf("%s will not fit in currently used file on floppy\n",name); | |
656 | return(1); | |
657 | } | |
658 | } else { | |
fa61ea79 BJ |
659 | /* Search for vacant spot */ |
660 | for (segnum=0; segnum != -1; /* for all dir. segments */ | |
661 | segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { | |
662 | last = rt_last + segnum*2*RT_BLOCK; | |
663 | for(de = rt_dir[segnum].rt_ents; | |
664 | rt(de)->rt_stat != RT_ESEG; de++) { | |
9323c1d3 BJ |
665 | switch((de)->rt_stat) { |
666 | case RT_NULL: | |
667 | if(bufp->st_size <= (de->rt_len * 512)) { | |
668 | printf("a - %s\n",name), | |
fa61ea79 | 669 | mkent(de,segnum,bufp,name); |
9323c1d3 BJ |
670 | goto found; |
671 | } | |
672 | continue; | |
673 | case RT_ESEG: | |
fa61ea79 | 674 | exit(1); |
9323c1d3 BJ |
675 | } |
676 | } | |
fa61ea79 BJ |
677 | } |
678 | return(3); | |
9323c1d3 BJ |
679 | } |
680 | found: if(dope=lookup(name)) { | |
681 | toflop(name,bufp->st_size,dope); | |
682 | return(0); | |
683 | } | |
684 | return(7); | |
685 | ||
686 | } | |
fa61ea79 | 687 | mkent(de,segnum,bufp,name) |
9323c1d3 | 688 | register struct rt_ent *de; |
fa61ea79 | 689 | int segnum; |
9323c1d3 BJ |
690 | register struct stat *bufp; |
691 | char *name; | |
692 | { | |
693 | struct tm *localtime(); register struct tm *timp; | |
694 | register struct rt_ent *workp; int count; | |
695 | ||
696 | count = (((bufp->st_size -1) >>9) + 1); | |
697 | /* Make sure there is room */ | |
698 | if(de->rt_len==count) | |
699 | goto overwrite; | |
fa61ea79 BJ |
700 | if(rt_curend[segnum] == (rt_last + (segnum*2*RT_BLOCK))) { |
701 | /* no entries left on segment */ | |
9323c1d3 BJ |
702 | if(flg['o'-'a']) |
703 | goto overwrite; | |
fa61ea79 BJ |
704 | fprintf(stderr,"Directory segment #%d full on %s\n",segnum+1, |
705 | defdev); | |
9323c1d3 BJ |
706 | exit(1); |
707 | } | |
708 | /* copy directory entries up */ | |
fa61ea79 | 709 | for(workp = rt_curend[segnum]+1; workp > de; workp--) |
9323c1d3 BJ |
710 | *workp = workp[-1]; |
711 | de[1].rt_len -= count; | |
712 | de->rt_len = count; | |
fa61ea79 | 713 | rt_curend[segnum]++; |
9323c1d3 BJ |
714 | rt_nleft--; |
715 | overwrite: | |
716 | srad50(name,de->rt_name); | |
717 | timp = localtime(&bufp->st_mtime); | |
718 | de->rt_date.rt_dy = timp->tm_mday + 1; | |
719 | de->rt_date.rt_mo = timp->tm_mon + 1; | |
720 | de->rt_date.rt_yr = timp->tm_year - 72; | |
721 | de->rt_stat = RT_FILE; | |
722 | de->rt_pad = 0; | |
723 | de->rt_chan = 0; | |
724 | de->rt_job = 0; | |
fa61ea79 | 725 | lwrite((6+segnum*2)*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir[segnum]); |
9323c1d3 BJ |
726 | |
727 | } | |
728 | ||
729 | toflop(name,ocount,dope) | |
730 | char *name; | |
731 | register FLDOPE *dope; | |
732 | long ocount; | |
733 | { | |
734 | register file, n, startad = dope->startad, count = ocount; | |
735 | char buff[512]; | |
736 | ||
737 | file = open(name,0); | |
738 | if(file < 0) { | |
739 | printf("arff: couldn't open %s\n",name);exit(1);} | |
740 | for( ; count >= 512; count -= 512) { | |
741 | read(file,buff,512); | |
742 | lwrite(startad,512,buff); | |
743 | startad += 512; | |
744 | } | |
745 | read(file,buff,count); | |
746 | close(file); | |
747 | if(count <= 0) return; | |
748 | for(n = count; n < 512; n ++) buff[n] = 0; | |
749 | lwrite(startad,512,buff); | |
750 | count = (dope->rtdope->rt_len * 512 - ocount) / 512 ; | |
751 | if(count <= 0) return; | |
752 | for( ; count > 0 ; count--) { | |
753 | startad += 512; | |
754 | lwrite(startad,512,zeroes); | |
755 | } | |
756 | ||
757 | } | |
758 | dcmd() | |
759 | { | |
760 | register int i; | |
761 | ||
762 | rt_init(); | |
763 | if(namc) | |
764 | for(i = 0; i < namc; i++) | |
765 | if(rtk(namv[i])==0) namv[i]=0; | |
766 | if(dirdirty) | |
767 | scrunch(); | |
768 | ||
769 | } | |
770 | rtk(name) | |
771 | char *name; | |
772 | { | |
773 | register FLDOPE *dope; | |
774 | register struct rt_ent *de; | |
775 | FLDOPE *lookup(); | |
776 | ||
777 | if(dope = lookup(name)) { | |
778 | printf("d - %s\n",name); | |
779 | de = dope->rtdope; | |
780 | de->rt_stat = RT_NULL; | |
781 | de->rt_name[0] = 0; | |
782 | de->rt_name[1] = 0; | |
783 | de->rt_name[2] = 0; | |
784 | * ((unsigned short *) & (de->rt_date)) = 0; | |
785 | dirdirty = 1; | |
786 | return(0); | |
787 | } | |
788 | return(1); | |
789 | } | |
790 | scrunch() { | |
fa61ea79 BJ |
791 | register struct rt_ent *de , *workp; |
792 | register segnum; | |
793 | for (segnum=0; segnum != -1; /* for all dir. segments */ | |
794 | segnum = rt_dir[segnum].rt_axhead.rt_nxtseg - 1) { | |
795 | dirdirty = 0; | |
796 | for(de = rt_dir[segnum].rt_ents; de <= rt_curend[segnum]; de++) { | |
9323c1d3 BJ |
797 | if(de->rt_stat==RT_NULL && de[1].rt_stat==RT_NULL) { |
798 | (de+1)->rt_len += de->rt_len; | |
fa61ea79 | 799 | for(workp = de; workp < rt_curend[segnum]; workp++) |
9323c1d3 BJ |
800 | *workp = workp[1]; |
801 | de--; | |
fa61ea79 | 802 | rt_curend[segnum]--; |
9323c1d3 | 803 | rt_nleft++; |
fa61ea79 | 804 | dirdirty = 1; |
9323c1d3 | 805 | } |
fa61ea79 BJ |
806 | } |
807 | if (dirdirty) | |
808 | lwrite((6+segnum*2)*RT_BLOCK,2*RT_BLOCK,(char *)&rt_dir[segnum]); | |
9323c1d3 | 809 | } |
9323c1d3 | 810 | } |