Commit | Line | Data |
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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char sccsid[] = "@(#)cmds.c 5.7 (Berkeley) 6/1/90"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | /* | |
39 | * lpc -- line printer control program -- commands: | |
40 | */ | |
41 | ||
42 | #include "lp.h" | |
43 | #include <sys/time.h> | |
44 | #include "pathnames.h" | |
45 | ||
46 | /* | |
47 | * kill an existing daemon and disable printing. | |
48 | */ | |
49 | abort(argc, argv) | |
50 | char *argv[]; | |
51 | { | |
52 | register int c, status; | |
53 | register char *cp1, *cp2; | |
54 | char prbuf[100]; | |
55 | ||
56 | if (argc == 1) { | |
57 | printf("Usage: abort {all | printer ...}\n"); | |
58 | return; | |
59 | } | |
60 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
61 | printer = prbuf; | |
62 | while (getprent(line) > 0) { | |
63 | cp1 = prbuf; | |
64 | cp2 = line; | |
65 | while ((c = *cp2++) && c != '|' && c != ':') | |
66 | *cp1++ = c; | |
67 | *cp1 = '\0'; | |
68 | abortpr(1); | |
69 | } | |
70 | return; | |
71 | } | |
72 | while (--argc) { | |
73 | printer = *++argv; | |
74 | if ((status = pgetent(line, printer)) < 0) { | |
75 | printf("cannot open printer description file\n"); | |
76 | continue; | |
77 | } else if (status == 0) { | |
78 | printf("unknown printer %s\n", printer); | |
79 | continue; | |
80 | } | |
81 | abortpr(1); | |
82 | } | |
83 | } | |
84 | ||
85 | abortpr(dis) | |
86 | { | |
87 | register FILE *fp; | |
88 | struct stat stbuf; | |
89 | int pid, fd; | |
90 | ||
91 | bp = pbuf; | |
92 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
93 | SD = _PATH_DEFSPOOL; | |
94 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
95 | LO = DEFLOCK; | |
96 | (void) sprintf(line, "%s/%s", SD, LO); | |
97 | printf("%s:\n", printer); | |
98 | ||
99 | /* | |
100 | * Turn on the owner execute bit of the lock file to disable printing. | |
101 | */ | |
102 | if (dis) { | |
103 | if (stat(line, &stbuf) >= 0) { | |
104 | if (chmod(line, (stbuf.st_mode & 0777) | 0100) < 0) | |
105 | printf("\tcannot disable printing\n"); | |
106 | else { | |
107 | upstat("printing disabled\n"); | |
108 | printf("\tprinting disabled\n"); | |
109 | } | |
110 | } else if (errno == ENOENT) { | |
111 | if ((fd = open(line, O_WRONLY|O_CREAT, 0760)) < 0) | |
112 | printf("\tcannot create lock file\n"); | |
113 | else { | |
114 | (void) close(fd); | |
115 | upstat("printing disabled\n"); | |
116 | printf("\tprinting disabled\n"); | |
117 | printf("\tno daemon to abort\n"); | |
118 | } | |
119 | return; | |
120 | } else { | |
121 | printf("\tcannot stat lock file\n"); | |
122 | return; | |
123 | } | |
124 | } | |
125 | /* | |
126 | * Kill the current daemon to stop printing now. | |
127 | */ | |
128 | if ((fp = fopen(line, "r")) == NULL) { | |
129 | printf("\tcannot open lock file\n"); | |
130 | return; | |
131 | } | |
132 | if (!getline(fp) || flock(fileno(fp), LOCK_SH|LOCK_NB) == 0) { | |
133 | (void) fclose(fp); /* unlocks as well */ | |
134 | printf("\tno daemon to abort\n"); | |
135 | return; | |
136 | } | |
137 | (void) fclose(fp); | |
138 | if (kill(pid = atoi(line), SIGTERM) < 0) | |
139 | printf("\tWarning: daemon (pid %d) not killed\n", pid); | |
140 | else | |
141 | printf("\tdaemon (pid %d) killed\n", pid); | |
142 | } | |
143 | ||
144 | /* | |
145 | * Write a message into the status file. | |
146 | */ | |
147 | upstat(msg) | |
148 | char *msg; | |
149 | { | |
150 | register int fd; | |
151 | char statfile[BUFSIZ]; | |
152 | ||
153 | bp = pbuf; | |
154 | if ((ST = pgetstr("st", &bp)) == NULL) | |
155 | ST = DEFSTAT; | |
156 | (void) sprintf(statfile, "%s/%s", SD, ST); | |
157 | umask(0); | |
158 | fd = open(statfile, O_WRONLY|O_CREAT, 0664); | |
159 | if (fd < 0 || flock(fd, LOCK_EX) < 0) { | |
160 | printf("\tcannot create status file\n"); | |
161 | return; | |
162 | } | |
163 | (void) ftruncate(fd, 0); | |
164 | if (msg == (char *)NULL) | |
165 | (void) write(fd, "\n", 1); | |
166 | else | |
167 | (void) write(fd, msg, strlen(msg)); | |
168 | (void) close(fd); | |
169 | } | |
170 | ||
171 | /* | |
172 | * Remove all spool files and temporaries from the spooling area. | |
173 | */ | |
174 | clean(argc, argv) | |
175 | char *argv[]; | |
176 | { | |
177 | register int c, status; | |
178 | register char *cp1, *cp2; | |
179 | char prbuf[100]; | |
180 | ||
181 | if (argc == 1) { | |
182 | printf("Usage: clean {all | printer ...}\n"); | |
183 | return; | |
184 | } | |
185 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
186 | printer = prbuf; | |
187 | while (getprent(line) > 0) { | |
188 | cp1 = prbuf; | |
189 | cp2 = line; | |
190 | while ((c = *cp2++) && c != '|' && c != ':') | |
191 | *cp1++ = c; | |
192 | *cp1 = '\0'; | |
193 | cleanpr(); | |
194 | } | |
195 | return; | |
196 | } | |
197 | while (--argc) { | |
198 | printer = *++argv; | |
199 | if ((status = pgetent(line, printer)) < 0) { | |
200 | printf("cannot open printer description file\n"); | |
201 | continue; | |
202 | } else if (status == 0) { | |
203 | printf("unknown printer %s\n", printer); | |
204 | continue; | |
205 | } | |
206 | cleanpr(); | |
207 | } | |
208 | } | |
209 | ||
210 | select(d) | |
211 | struct direct *d; | |
212 | { | |
213 | int c = d->d_name[0]; | |
214 | ||
215 | if ((c == 't' || c == 'c' || c == 'd') && d->d_name[1] == 'f') | |
216 | return(1); | |
217 | return(0); | |
218 | } | |
219 | ||
220 | /* | |
221 | * Comparison routine for scandir. Sort by job number and machine, then | |
222 | * by `cf', `tf', or `df', then by the sequence letter A-Z, a-z. | |
223 | */ | |
224 | sortq(d1, d2) | |
225 | struct direct **d1, **d2; | |
226 | { | |
227 | int c1, c2; | |
228 | ||
229 | if (c1 = strcmp((*d1)->d_name + 3, (*d2)->d_name + 3)) | |
230 | return(c1); | |
231 | c1 = (*d1)->d_name[0]; | |
232 | c2 = (*d2)->d_name[0]; | |
233 | if (c1 == c2) | |
234 | return((*d1)->d_name[2] - (*d2)->d_name[2]); | |
235 | if (c1 == 'c') | |
236 | return(-1); | |
237 | if (c1 == 'd' || c2 == 'c') | |
238 | return(1); | |
239 | return(-1); | |
240 | } | |
241 | ||
242 | /* | |
243 | * Remove incomplete jobs from spooling area. | |
244 | */ | |
245 | cleanpr() | |
246 | { | |
247 | register int i, n; | |
248 | register char *cp, *cp1, *lp; | |
249 | struct direct **queue; | |
250 | int nitems; | |
251 | ||
252 | bp = pbuf; | |
253 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
254 | SD = _PATH_DEFSPOOL; | |
255 | printf("%s:\n", printer); | |
256 | ||
257 | for (lp = line, cp = SD; *lp++ = *cp++; ) | |
258 | ; | |
259 | lp[-1] = '/'; | |
260 | ||
261 | nitems = scandir(SD, &queue, select, sortq); | |
262 | if (nitems < 0) { | |
263 | printf("\tcannot examine spool directory\n"); | |
264 | return; | |
265 | } | |
266 | if (nitems == 0) | |
267 | return; | |
268 | i = 0; | |
269 | do { | |
270 | cp = queue[i]->d_name; | |
271 | if (*cp == 'c') { | |
272 | n = 0; | |
273 | while (i + 1 < nitems) { | |
274 | cp1 = queue[i + 1]->d_name; | |
275 | if (*cp1 != 'd' || strcmp(cp + 3, cp1 + 3)) | |
276 | break; | |
277 | i++; | |
278 | n++; | |
279 | } | |
280 | if (n == 0) { | |
281 | strcpy(lp, cp); | |
282 | unlinkf(line); | |
283 | } | |
284 | } else { | |
285 | /* | |
286 | * Must be a df with no cf (otherwise, it would have | |
287 | * been skipped above) or a tf file (which can always | |
288 | * be removed). | |
289 | */ | |
290 | strcpy(lp, cp); | |
291 | unlinkf(line); | |
292 | } | |
293 | } while (++i < nitems); | |
294 | } | |
295 | ||
296 | unlinkf(name) | |
297 | char *name; | |
298 | { | |
299 | if (unlink(name) < 0) | |
300 | printf("\tcannot remove %s\n", name); | |
301 | else | |
302 | printf("\tremoved %s\n", name); | |
303 | } | |
304 | ||
305 | /* | |
306 | * Enable queuing to the printer (allow lpr's). | |
307 | */ | |
308 | enable(argc, argv) | |
309 | char *argv[]; | |
310 | { | |
311 | register int c, status; | |
312 | register char *cp1, *cp2; | |
313 | char prbuf[100]; | |
314 | ||
315 | if (argc == 1) { | |
316 | printf("Usage: enable {all | printer ...}\n"); | |
317 | return; | |
318 | } | |
319 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
320 | printer = prbuf; | |
321 | while (getprent(line) > 0) { | |
322 | cp1 = prbuf; | |
323 | cp2 = line; | |
324 | while ((c = *cp2++) && c != '|' && c != ':') | |
325 | *cp1++ = c; | |
326 | *cp1 = '\0'; | |
327 | enablepr(); | |
328 | } | |
329 | return; | |
330 | } | |
331 | while (--argc) { | |
332 | printer = *++argv; | |
333 | if ((status = pgetent(line, printer)) < 0) { | |
334 | printf("cannot open printer description file\n"); | |
335 | continue; | |
336 | } else if (status == 0) { | |
337 | printf("unknown printer %s\n", printer); | |
338 | continue; | |
339 | } | |
340 | enablepr(); | |
341 | } | |
342 | } | |
343 | ||
344 | enablepr() | |
345 | { | |
346 | struct stat stbuf; | |
347 | ||
348 | bp = pbuf; | |
349 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
350 | SD = _PATH_DEFSPOOL; | |
351 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
352 | LO = DEFLOCK; | |
353 | (void) sprintf(line, "%s/%s", SD, LO); | |
354 | printf("%s:\n", printer); | |
355 | ||
356 | /* | |
357 | * Turn off the group execute bit of the lock file to enable queuing. | |
358 | */ | |
359 | if (stat(line, &stbuf) >= 0) { | |
360 | if (chmod(line, stbuf.st_mode & 0767) < 0) | |
361 | printf("\tcannot enable queuing\n"); | |
362 | else | |
363 | printf("\tqueuing enabled\n"); | |
364 | } | |
365 | } | |
366 | ||
367 | /* | |
368 | * Disable queuing. | |
369 | */ | |
370 | disable(argc, argv) | |
371 | char *argv[]; | |
372 | { | |
373 | register int c, status; | |
374 | register char *cp1, *cp2; | |
375 | char prbuf[100]; | |
376 | ||
377 | if (argc == 1) { | |
378 | printf("Usage: disable {all | printer ...}\n"); | |
379 | return; | |
380 | } | |
381 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
382 | printer = prbuf; | |
383 | while (getprent(line) > 0) { | |
384 | cp1 = prbuf; | |
385 | cp2 = line; | |
386 | while ((c = *cp2++) && c != '|' && c != ':') | |
387 | *cp1++ = c; | |
388 | *cp1 = '\0'; | |
389 | disablepr(); | |
390 | } | |
391 | return; | |
392 | } | |
393 | while (--argc) { | |
394 | printer = *++argv; | |
395 | if ((status = pgetent(line, printer)) < 0) { | |
396 | printf("cannot open printer description file\n"); | |
397 | continue; | |
398 | } else if (status == 0) { | |
399 | printf("unknown printer %s\n", printer); | |
400 | continue; | |
401 | } | |
402 | disablepr(); | |
403 | } | |
404 | } | |
405 | ||
406 | disablepr() | |
407 | { | |
408 | register int fd; | |
409 | struct stat stbuf; | |
410 | ||
411 | bp = pbuf; | |
412 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
413 | SD = _PATH_DEFSPOOL; | |
414 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
415 | LO = DEFLOCK; | |
416 | (void) sprintf(line, "%s/%s", SD, LO); | |
417 | printf("%s:\n", printer); | |
418 | /* | |
419 | * Turn on the group execute bit of the lock file to disable queuing. | |
420 | */ | |
421 | if (stat(line, &stbuf) >= 0) { | |
422 | if (chmod(line, (stbuf.st_mode & 0777) | 010) < 0) | |
423 | printf("\tcannot disable queuing\n"); | |
424 | else | |
425 | printf("\tqueuing disabled\n"); | |
426 | } else if (errno == ENOENT) { | |
427 | if ((fd = open(line, O_WRONLY|O_CREAT, 0670)) < 0) | |
428 | printf("\tcannot create lock file\n"); | |
429 | else { | |
430 | (void) close(fd); | |
431 | printf("\tqueuing disabled\n"); | |
432 | } | |
433 | return; | |
434 | } else | |
435 | printf("\tcannot stat lock file\n"); | |
436 | } | |
437 | ||
438 | /* | |
439 | * Disable queuing and printing and put a message into the status file | |
440 | * (reason for being down). | |
441 | */ | |
442 | down(argc, argv) | |
443 | char *argv[]; | |
444 | { | |
445 | register int c, status; | |
446 | register char *cp1, *cp2; | |
447 | char prbuf[100]; | |
448 | ||
449 | if (argc == 1) { | |
450 | printf("Usage: down {all | printer} [message ...]\n"); | |
451 | return; | |
452 | } | |
453 | if (!strcmp(argv[1], "all")) { | |
454 | printer = prbuf; | |
455 | while (getprent(line) > 0) { | |
456 | cp1 = prbuf; | |
457 | cp2 = line; | |
458 | while ((c = *cp2++) && c != '|' && c != ':') | |
459 | *cp1++ = c; | |
460 | *cp1 = '\0'; | |
461 | putmsg(argc - 2, argv + 2); | |
462 | } | |
463 | return; | |
464 | } | |
465 | printer = argv[1]; | |
466 | if ((status = pgetent(line, printer)) < 0) { | |
467 | printf("cannot open printer description file\n"); | |
468 | return; | |
469 | } else if (status == 0) { | |
470 | printf("unknown printer %s\n", printer); | |
471 | return; | |
472 | } | |
473 | putmsg(argc - 2, argv + 2); | |
474 | } | |
475 | ||
476 | putmsg(argc, argv) | |
477 | char **argv; | |
478 | { | |
479 | register int fd; | |
480 | register char *cp1, *cp2; | |
481 | char buf[1024]; | |
482 | struct stat stbuf; | |
483 | ||
484 | bp = pbuf; | |
485 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
486 | SD = _PATH_DEFSPOOL; | |
487 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
488 | LO = DEFLOCK; | |
489 | if ((ST = pgetstr("st", &bp)) == NULL) | |
490 | ST = DEFSTAT; | |
491 | printf("%s:\n", printer); | |
492 | /* | |
493 | * Turn on the group execute bit of the lock file to disable queuing and | |
494 | * turn on the owner execute bit of the lock file to disable printing. | |
495 | */ | |
496 | (void) sprintf(line, "%s/%s", SD, LO); | |
497 | if (stat(line, &stbuf) >= 0) { | |
498 | if (chmod(line, (stbuf.st_mode & 0777) | 0110) < 0) | |
499 | printf("\tcannot disable queuing\n"); | |
500 | else | |
501 | printf("\tprinter and queuing disabled\n"); | |
502 | } else if (errno == ENOENT) { | |
503 | if ((fd = open(line, O_WRONLY|O_CREAT, 0770)) < 0) | |
504 | printf("\tcannot create lock file\n"); | |
505 | else { | |
506 | (void) close(fd); | |
507 | printf("\tprinter and queuing disabled\n"); | |
508 | } | |
509 | return; | |
510 | } else | |
511 | printf("\tcannot stat lock file\n"); | |
512 | /* | |
513 | * Write the message into the status file. | |
514 | */ | |
515 | (void) sprintf(line, "%s/%s", SD, ST); | |
516 | fd = open(line, O_WRONLY|O_CREAT, 0664); | |
517 | if (fd < 0 || flock(fd, LOCK_EX) < 0) { | |
518 | printf("\tcannot create status file\n"); | |
519 | return; | |
520 | } | |
521 | (void) ftruncate(fd, 0); | |
522 | if (argc <= 0) { | |
523 | (void) write(fd, "\n", 1); | |
524 | (void) close(fd); | |
525 | return; | |
526 | } | |
527 | cp1 = buf; | |
528 | while (--argc >= 0) { | |
529 | cp2 = *argv++; | |
530 | while (*cp1++ = *cp2++) | |
531 | ; | |
532 | cp1[-1] = ' '; | |
533 | } | |
534 | cp1[-1] = '\n'; | |
535 | *cp1 = '\0'; | |
536 | (void) write(fd, buf, strlen(buf)); | |
537 | (void) close(fd); | |
538 | } | |
539 | ||
540 | /* | |
541 | * Exit lpc | |
542 | */ | |
543 | quit(argc, argv) | |
544 | char *argv[]; | |
545 | { | |
546 | exit(0); | |
547 | } | |
548 | ||
549 | /* | |
550 | * Kill and restart the daemon. | |
551 | */ | |
552 | restart(argc, argv) | |
553 | char *argv[]; | |
554 | { | |
555 | register int c, status; | |
556 | register char *cp1, *cp2; | |
557 | char prbuf[100]; | |
558 | ||
559 | if (argc == 1) { | |
560 | printf("Usage: restart {all | printer ...}\n"); | |
561 | return; | |
562 | } | |
563 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
564 | printer = prbuf; | |
565 | while (getprent(line) > 0) { | |
566 | cp1 = prbuf; | |
567 | cp2 = line; | |
568 | while ((c = *cp2++) && c != '|' && c != ':') | |
569 | *cp1++ = c; | |
570 | *cp1 = '\0'; | |
571 | abortpr(0); | |
572 | startpr(0); | |
573 | } | |
574 | return; | |
575 | } | |
576 | while (--argc) { | |
577 | printer = *++argv; | |
578 | if ((status = pgetent(line, printer)) < 0) { | |
579 | printf("cannot open printer description file\n"); | |
580 | continue; | |
581 | } else if (status == 0) { | |
582 | printf("unknown printer %s\n", printer); | |
583 | continue; | |
584 | } | |
585 | abortpr(0); | |
586 | startpr(0); | |
587 | } | |
588 | } | |
589 | ||
590 | /* | |
591 | * Enable printing on the specified printer and startup the daemon. | |
592 | */ | |
593 | start(argc, argv) | |
594 | char *argv[]; | |
595 | { | |
596 | register int c, status; | |
597 | register char *cp1, *cp2; | |
598 | char prbuf[100]; | |
599 | ||
600 | if (argc == 1) { | |
601 | printf("Usage: start {all | printer ...}\n"); | |
602 | return; | |
603 | } | |
604 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
605 | printer = prbuf; | |
606 | while (getprent(line) > 0) { | |
607 | cp1 = prbuf; | |
608 | cp2 = line; | |
609 | while ((c = *cp2++) && c != '|' && c != ':') | |
610 | *cp1++ = c; | |
611 | *cp1 = '\0'; | |
612 | startpr(1); | |
613 | } | |
614 | return; | |
615 | } | |
616 | while (--argc) { | |
617 | printer = *++argv; | |
618 | if ((status = pgetent(line, printer)) < 0) { | |
619 | printf("cannot open printer description file\n"); | |
620 | continue; | |
621 | } else if (status == 0) { | |
622 | printf("unknown printer %s\n", printer); | |
623 | continue; | |
624 | } | |
625 | startpr(1); | |
626 | } | |
627 | } | |
628 | ||
629 | startpr(enable) | |
630 | { | |
631 | struct stat stbuf; | |
632 | ||
633 | bp = pbuf; | |
634 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
635 | SD = _PATH_DEFSPOOL; | |
636 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
637 | LO = DEFLOCK; | |
638 | (void) sprintf(line, "%s/%s", SD, LO); | |
639 | printf("%s:\n", printer); | |
640 | ||
641 | /* | |
642 | * Turn off the owner execute bit of the lock file to enable printing. | |
643 | */ | |
644 | if (enable && stat(line, &stbuf) >= 0) { | |
645 | if (chmod(line, stbuf.st_mode & (enable==2 ? 0666 : 0677)) < 0) | |
646 | printf("\tcannot enable printing\n"); | |
647 | else | |
648 | printf("\tprinting enabled\n"); | |
649 | } | |
650 | if (!startdaemon(printer)) | |
651 | printf("\tcouldn't start daemon\n"); | |
652 | else | |
653 | printf("\tdaemon started\n"); | |
654 | } | |
655 | ||
656 | /* | |
657 | * Print the status of each queue listed or all the queues. | |
658 | */ | |
659 | status(argc, argv) | |
660 | char *argv[]; | |
661 | { | |
662 | register int c, status; | |
663 | register char *cp1, *cp2; | |
664 | char prbuf[100]; | |
665 | ||
666 | if (argc == 1) { | |
667 | printer = prbuf; | |
668 | while (getprent(line) > 0) { | |
669 | cp1 = prbuf; | |
670 | cp2 = line; | |
671 | while ((c = *cp2++) && c != '|' && c != ':') | |
672 | *cp1++ = c; | |
673 | *cp1 = '\0'; | |
674 | prstat(); | |
675 | } | |
676 | return; | |
677 | } | |
678 | while (--argc) { | |
679 | printer = *++argv; | |
680 | if ((status = pgetent(line, printer)) < 0) { | |
681 | printf("cannot open printer description file\n"); | |
682 | continue; | |
683 | } else if (status == 0) { | |
684 | printf("unknown printer %s\n", printer); | |
685 | continue; | |
686 | } | |
687 | prstat(); | |
688 | } | |
689 | } | |
690 | ||
691 | /* | |
692 | * Print the status of the printer queue. | |
693 | */ | |
694 | prstat() | |
695 | { | |
696 | struct stat stbuf; | |
697 | register int fd, i; | |
698 | register struct direct *dp; | |
699 | DIR *dirp; | |
700 | ||
701 | bp = pbuf; | |
702 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
703 | SD = _PATH_DEFSPOOL; | |
704 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
705 | LO = DEFLOCK; | |
706 | if ((ST = pgetstr("st", &bp)) == NULL) | |
707 | ST = DEFSTAT; | |
708 | printf("%s:\n", printer); | |
709 | (void) sprintf(line, "%s/%s", SD, LO); | |
710 | if (stat(line, &stbuf) >= 0) { | |
711 | printf("\tqueuing is %s\n", | |
712 | (stbuf.st_mode & 010) ? "disabled" : "enabled"); | |
713 | printf("\tprinting is %s\n", | |
714 | (stbuf.st_mode & 0100) ? "disabled" : "enabled"); | |
715 | } else { | |
716 | printf("\tqueuing is enabled\n"); | |
717 | printf("\tprinting is enabled\n"); | |
718 | } | |
719 | if ((dirp = opendir(SD)) == NULL) { | |
720 | printf("\tcannot examine spool directory\n"); | |
721 | return; | |
722 | } | |
723 | i = 0; | |
724 | while ((dp = readdir(dirp)) != NULL) { | |
725 | if (*dp->d_name == 'c' && dp->d_name[1] == 'f') | |
726 | i++; | |
727 | } | |
728 | closedir(dirp); | |
729 | if (i == 0) | |
730 | printf("\tno entries\n"); | |
731 | else if (i == 1) | |
732 | printf("\t1 entry in spool area\n"); | |
733 | else | |
734 | printf("\t%d entries in spool area\n", i); | |
735 | fd = open(line, O_RDONLY); | |
736 | if (fd < 0 || flock(fd, LOCK_SH|LOCK_NB) == 0) { | |
737 | (void) close(fd); /* unlocks as well */ | |
738 | printf("\tno daemon present\n"); | |
739 | return; | |
740 | } | |
741 | (void) close(fd); | |
742 | putchar('\t'); | |
743 | (void) sprintf(line, "%s/%s", SD, ST); | |
744 | fd = open(line, O_RDONLY); | |
745 | if (fd >= 0) { | |
746 | (void) flock(fd, LOCK_SH); | |
747 | while ((i = read(fd, line, sizeof(line))) > 0) | |
748 | (void) fwrite(line, 1, i, stdout); | |
749 | (void) close(fd); /* unlocks as well */ | |
750 | } | |
751 | } | |
752 | ||
753 | /* | |
754 | * Stop the specified daemon after completing the current job and disable | |
755 | * printing. | |
756 | */ | |
757 | stop(argc, argv) | |
758 | char *argv[]; | |
759 | { | |
760 | register int c, status; | |
761 | register char *cp1, *cp2; | |
762 | char prbuf[100]; | |
763 | ||
764 | if (argc == 1) { | |
765 | printf("Usage: stop {all | printer ...}\n"); | |
766 | return; | |
767 | } | |
768 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
769 | printer = prbuf; | |
770 | while (getprent(line) > 0) { | |
771 | cp1 = prbuf; | |
772 | cp2 = line; | |
773 | while ((c = *cp2++) && c != '|' && c != ':') | |
774 | *cp1++ = c; | |
775 | *cp1 = '\0'; | |
776 | stoppr(); | |
777 | } | |
778 | return; | |
779 | } | |
780 | while (--argc) { | |
781 | printer = *++argv; | |
782 | if ((status = pgetent(line, printer)) < 0) { | |
783 | printf("cannot open printer description file\n"); | |
784 | continue; | |
785 | } else if (status == 0) { | |
786 | printf("unknown printer %s\n", printer); | |
787 | continue; | |
788 | } | |
789 | stoppr(); | |
790 | } | |
791 | } | |
792 | ||
793 | stoppr() | |
794 | { | |
795 | register int fd; | |
796 | struct stat stbuf; | |
797 | ||
798 | bp = pbuf; | |
799 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
800 | SD = _PATH_DEFSPOOL; | |
801 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
802 | LO = DEFLOCK; | |
803 | (void) sprintf(line, "%s/%s", SD, LO); | |
804 | printf("%s:\n", printer); | |
805 | ||
806 | /* | |
807 | * Turn on the owner execute bit of the lock file to disable printing. | |
808 | */ | |
809 | if (stat(line, &stbuf) >= 0) { | |
810 | if (chmod(line, (stbuf.st_mode & 0777) | 0100) < 0) | |
811 | printf("\tcannot disable printing\n"); | |
812 | else { | |
813 | upstat("printing disabled\n"); | |
814 | printf("\tprinting disabled\n"); | |
815 | } | |
816 | } else if (errno == ENOENT) { | |
817 | if ((fd = open(line, O_WRONLY|O_CREAT, 0760)) < 0) | |
818 | printf("\tcannot create lock file\n"); | |
819 | else { | |
820 | (void) close(fd); | |
821 | upstat("printing disabled\n"); | |
822 | printf("\tprinting disabled\n"); | |
823 | } | |
824 | } else | |
825 | printf("\tcannot stat lock file\n"); | |
826 | } | |
827 | ||
828 | struct queue **queue; | |
829 | int nitems; | |
830 | time_t mtime; | |
831 | ||
832 | /* | |
833 | * Put the specified jobs at the top of printer queue. | |
834 | */ | |
835 | topq(argc, argv) | |
836 | char *argv[]; | |
837 | { | |
838 | register int n, i; | |
839 | struct stat stbuf; | |
840 | register char *cfname; | |
841 | int status, changed; | |
842 | ||
843 | if (argc < 3) { | |
844 | printf("Usage: topq printer [jobnum ...] [user ...]\n"); | |
845 | return; | |
846 | } | |
847 | ||
848 | --argc; | |
849 | printer = *++argv; | |
850 | status = pgetent(line, printer); | |
851 | if (status < 0) { | |
852 | printf("cannot open printer description file\n"); | |
853 | return; | |
854 | } else if (status == 0) { | |
855 | printf("%s: unknown printer\n", printer); | |
856 | return; | |
857 | } | |
858 | bp = pbuf; | |
859 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
860 | SD = _PATH_DEFSPOOL; | |
861 | if ((LO = pgetstr("lo", &bp)) == NULL) | |
862 | LO = DEFLOCK; | |
863 | printf("%s:\n", printer); | |
864 | ||
865 | if (chdir(SD) < 0) { | |
866 | printf("\tcannot chdir to %s\n", SD); | |
867 | return; | |
868 | } | |
869 | nitems = getq(&queue); | |
870 | if (nitems == 0) | |
871 | return; | |
872 | changed = 0; | |
873 | mtime = queue[0]->q_time; | |
874 | for (i = argc; --i; ) { | |
875 | if (doarg(argv[i]) == 0) { | |
876 | printf("\tjob %s is not in the queue\n", argv[i]); | |
877 | continue; | |
878 | } else | |
879 | changed++; | |
880 | } | |
881 | for (i = 0; i < nitems; i++) | |
882 | free(queue[i]); | |
883 | free(queue); | |
884 | if (!changed) { | |
885 | printf("\tqueue order unchanged\n"); | |
886 | return; | |
887 | } | |
888 | /* | |
889 | * Turn on the public execute bit of the lock file to | |
890 | * get lpd to rebuild the queue after the current job. | |
891 | */ | |
892 | if (changed && stat(LO, &stbuf) >= 0) | |
893 | (void) chmod(LO, (stbuf.st_mode & 0777) | 01); | |
894 | } | |
895 | ||
896 | /* | |
897 | * Reposition the job by changing the modification time of | |
898 | * the control file. | |
899 | */ | |
900 | touch(q) | |
901 | struct queue *q; | |
902 | { | |
903 | struct timeval tvp[2]; | |
904 | ||
905 | tvp[0].tv_sec = tvp[1].tv_sec = --mtime; | |
906 | tvp[0].tv_usec = tvp[1].tv_usec = 0; | |
907 | return(utimes(q->q_name, tvp)); | |
908 | } | |
909 | ||
910 | /* | |
911 | * Checks if specified job name is in the printer's queue. | |
912 | * Returns: negative (-1) if argument name is not in the queue. | |
913 | */ | |
914 | doarg(job) | |
915 | char *job; | |
916 | { | |
917 | register struct queue **qq; | |
918 | register int jobnum, n; | |
919 | register char *cp, *machine; | |
920 | int cnt = 0; | |
921 | FILE *fp; | |
922 | ||
923 | /* | |
924 | * Look for a job item consisting of system name, colon, number | |
925 | * (example: ucbarpa:114) | |
926 | */ | |
927 | if ((cp = index(job, ':')) != NULL) { | |
928 | machine = job; | |
929 | *cp++ = '\0'; | |
930 | job = cp; | |
931 | } else | |
932 | machine = NULL; | |
933 | ||
934 | /* | |
935 | * Check for job specified by number (example: 112 or 235ucbarpa). | |
936 | */ | |
937 | if (isdigit(*job)) { | |
938 | jobnum = 0; | |
939 | do | |
940 | jobnum = jobnum * 10 + (*job++ - '0'); | |
941 | while (isdigit(*job)); | |
942 | for (qq = queue + nitems; --qq >= queue; ) { | |
943 | n = 0; | |
944 | for (cp = (*qq)->q_name+3; isdigit(*cp); ) | |
945 | n = n * 10 + (*cp++ - '0'); | |
946 | if (jobnum != n) | |
947 | continue; | |
948 | if (*job && strcmp(job, cp) != 0) | |
949 | continue; | |
950 | if (machine != NULL && strcmp(machine, cp) != 0) | |
951 | continue; | |
952 | if (touch(*qq) == 0) { | |
953 | printf("\tmoved %s\n", (*qq)->q_name); | |
954 | cnt++; | |
955 | } | |
956 | } | |
957 | return(cnt); | |
958 | } | |
959 | /* | |
960 | * Process item consisting of owner's name (example: henry). | |
961 | */ | |
962 | for (qq = queue + nitems; --qq >= queue; ) { | |
963 | if ((fp = fopen((*qq)->q_name, "r")) == NULL) | |
964 | continue; | |
965 | while (getline(fp) > 0) | |
966 | if (line[0] == 'P') | |
967 | break; | |
968 | (void) fclose(fp); | |
969 | if (line[0] != 'P' || strcmp(job, line+1) != 0) | |
970 | continue; | |
971 | if (touch(*qq) == 0) { | |
972 | printf("\tmoved %s\n", (*qq)->q_name); | |
973 | cnt++; | |
974 | } | |
975 | } | |
976 | return(cnt); | |
977 | } | |
978 | ||
979 | /* | |
980 | * Enable everything and start printer (undo `down'). | |
981 | */ | |
982 | up(argc, argv) | |
983 | char *argv[]; | |
984 | { | |
985 | register int c, status; | |
986 | register char *cp1, *cp2; | |
987 | char prbuf[100]; | |
988 | ||
989 | if (argc == 1) { | |
990 | printf("Usage: up {all | printer ...}\n"); | |
991 | return; | |
992 | } | |
993 | if (argc == 2 && !strcmp(argv[1], "all")) { | |
994 | printer = prbuf; | |
995 | while (getprent(line) > 0) { | |
996 | cp1 = prbuf; | |
997 | cp2 = line; | |
998 | while ((c = *cp2++) && c != '|' && c != ':') | |
999 | *cp1++ = c; | |
1000 | *cp1 = '\0'; | |
1001 | startpr(2); | |
1002 | } | |
1003 | return; | |
1004 | } | |
1005 | while (--argc) { | |
1006 | printer = *++argv; | |
1007 | if ((status = pgetent(line, printer)) < 0) { | |
1008 | printf("cannot open printer description file\n"); | |
1009 | continue; | |
1010 | } else if (status == 0) { | |
1011 | printf("unknown printer %s\n", printer); | |
1012 | continue; | |
1013 | } | |
1014 | startpr(2); | |
1015 | } | |
1016 | } |