Style(9) cleanup.
[dragonfly.git] / usr.sbin / lpr / common_source / displayq.c
CommitLineData
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1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. 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.
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32 *
33 * @(#)displayq.c 8.4 (Berkeley) 4/28/95
34 * $FreeBSD: src/usr.sbin/lpr/common_source/displayq.c,v 1.15.2.8 2001/08/30 09:27:41 kris Exp $
be6b9a2e 35 * $DragonFly: src/usr.sbin/lpr/common_source/displayq.c,v 1.3 2004/03/22 22:32:50 cpressey Exp $
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36 */
37
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38#include <sys/param.h>
39#include <sys/stat.h>
40
41#include <ctype.h>
42#include <dirent.h>
43#include <errno.h>
44#include <fcntl.h>
45#include <signal.h>
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#define psignal foil_gcc_psignal
50#define sys_siglist foil_gcc_siglist
51#include <unistd.h>
52#undef psignal
53#undef sys_siglist
54
55#include "lp.h"
56#include "lp.local.h"
57#include "pathnames.h"
58
59/*
60 * Routines to display the state of the queue.
61 */
62#define JOBCOL 40 /* column for job # in -l format */
63#define OWNCOL 7 /* start of Owner column in normal */
64#define SIZCOL 62 /* start of Size column in normal */
65
66/*
67 * Stuff for handling job specifications
68 */
69extern uid_t uid, euid;
70
71static int col; /* column on screen */
72static char current[MAXNAMLEN+1]; /* current file being printed */
73static char file[MAXNAMLEN+1]; /* print file name */
74static int first; /* first file in ``files'' column? */
75static int garbage; /* # of garbage cf files */
76static int lflag; /* long output option */
77static int rank; /* order to be printed (-1=none, 0=active) */
78static long totsize; /* total print job size in bytes */
79
80static const char *head0 = "Rank Owner Job Files";
81static const char *head1 = "Total Size\n";
82
83static void alarmhandler(int _signo);
84static void warn(const struct printer *_pp);
85
86/*
87 * Display the current state of the queue. Format = 1 if long format.
88 */
89void
90displayq(struct printer *pp, int format)
91{
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92 struct jobqueue *q;
93 int i, nitems, fd, ret;
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94 char *cp, *endp;
95 struct jobqueue **queue;
96 struct stat statb;
97 FILE *fp;
98 void (*savealrm)(int);
99
100 lflag = format;
101 totsize = 0;
102 rank = -1;
103
104 if ((cp = checkremote(pp))) {
105 printf("Warning: %s\n", cp);
106 free(cp);
107 }
108
109 /*
110 * Print out local queue
111 * Find all the control files in the spooling directory
112 */
113 seteuid(euid);
114 if (chdir(pp->spool_dir) < 0)
115 fatal(pp, "cannot chdir to spooling directory: %s",
116 strerror(errno));
117 seteuid(uid);
118 if ((nitems = getq(pp, &queue)) < 0)
119 fatal(pp, "cannot examine spooling area\n");
120 seteuid(euid);
121 ret = stat(pp->lock_file, &statb);
122 seteuid(uid);
123 if (ret >= 0) {
124 if (statb.st_mode & LFM_PRINT_DIS) {
125 if (pp->remote)
126 printf("%s: ", local_host);
127 printf("Warning: %s is down: ", pp->printer);
128 seteuid(euid);
129 fd = open(pp->status_file, O_RDONLY|O_SHLOCK);
130 seteuid(uid);
131 if (fd >= 0) {
132 while ((i = read(fd, line, sizeof(line))) > 0)
133 (void) fwrite(line, 1, i, stdout);
134 (void) close(fd); /* unlocks as well */
135 } else
136 putchar('\n');
137 }
138 if (statb.st_mode & LFM_QUEUE_DIS) {
139 if (pp->remote)
140 printf("%s: ", local_host);
141 printf("Warning: %s queue is turned off\n",
142 pp->printer);
143 }
144 }
145
146 if (nitems) {
147 seteuid(euid);
148 fp = fopen(pp->lock_file, "r");
149 seteuid(uid);
150 if (fp == NULL)
151 warn(pp);
152 else {
153 /* get daemon pid */
154 cp = current;
155 endp = cp + sizeof(current) - 1;
156 while ((i = getc(fp)) != EOF && i != '\n') {
157 if (cp < endp)
158 *cp++ = i;
159 }
160 *cp = '\0';
161 i = atoi(current);
162 if (i <= 0) {
163 ret = -1;
164 } else {
165 seteuid(euid);
166 ret = kill(i, 0);
167 seteuid(uid);
168 }
169 if (ret < 0) {
170 warn(pp);
171 } else {
172 /* read current file name */
173 cp = current;
174 endp = cp + sizeof(current) - 1;
175 while ((i = getc(fp)) != EOF && i != '\n') {
176 if (cp < endp)
177 *cp++ = i;
178 }
179 *cp = '\0';
180 /*
181 * Print the status file.
182 */
183 if (pp->remote)
184 printf("%s: ", local_host);
185 seteuid(euid);
186 fd = open(pp->status_file, O_RDONLY|O_SHLOCK);
187 seteuid(uid);
188 if (fd >= 0) {
189 while ((i = read(fd, line,
190 sizeof(line))) > 0)
191 fwrite(line, 1, i, stdout);
192 close(fd); /* unlocks as well */
193 } else
194 putchar('\n');
195 }
196 (void) fclose(fp);
197 }
198 /*
199 * Now, examine the control files and print out the jobs to
200 * be done for each user.
201 */
202 if (!lflag)
203 header();
204 for (i = 0; i < nitems; i++) {
205 q = queue[i];
206 inform(pp, q->job_cfname);
207 free(q);
208 }
209 free(queue);
210 }
211 if (!pp->remote) {
212 if (nitems == 0)
213 puts("no entries");
214 return;
215 }
216
217 /*
218 * Print foreign queue
219 * Note that a file in transit may show up in either queue.
220 */
221 if (nitems)
222 putchar('\n');
223 (void) snprintf(line, sizeof(line), "%c%s", format ? '\4' : '\3',
224 pp->remote_queue);
225 cp = line;
226 for (i = 0; i < requests && cp-line+10 < sizeof(line) - 1; i++) {
227 cp += strlen(cp);
228 (void) sprintf(cp, " %d", requ[i]);
229 }
230 for (i = 0; i < users && cp - line + 1 + strlen(user[i]) <
231 sizeof(line) - 1; i++) {
232 cp += strlen(cp);
233 *cp++ = ' ';
234 (void) strcpy(cp, user[i]);
235 }
236 strcat(line, "\n");
237 savealrm = signal(SIGALRM, alarmhandler);
238 alarm(pp->conn_timeout);
239 fd = getport(pp, pp->remote_host, 0);
240 alarm(0);
241 (void)signal(SIGALRM, savealrm);
242 if (fd < 0) {
243 if (from_host != local_host)
244 printf("%s: ", local_host);
245 printf("connection to %s is down\n", pp->remote_host);
246 }
247 else {
248 i = strlen(line);
249 if (write(fd, line, i) != i)
250 fatal(pp, "Lost connection");
251 while ((i = read(fd, line, sizeof(line))) > 0)
252 (void) fwrite(line, 1, i, stdout);
253 (void) close(fd);
254 }
255}
256
257/*
258 * Print a warning message if there is no daemon present.
259 */
260static void
261warn(const struct printer *pp)
262{
263 if (pp->remote)
264 printf("%s: ", local_host);
265 puts("Warning: no daemon present");
266 current[0] = '\0';
267}
268
269/*
270 * Print the header for the short listing format
271 */
272void
273header(void)
274{
275 printf("%s", head0);
276 col = strlen(head0)+1;
277 blankfill(SIZCOL);
278 printf("%s", head1);
279}
280
281void
282inform(const struct printer *pp, char *cf)
283{
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284 int copycnt;
285 char savedname[MAXPATHLEN+1];
286 FILE *cfp;
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287
288 /*
289 * There's a chance the control file has gone away
290 * in the meantime; if this is the case just keep going
291 */
292 seteuid(euid);
293 if ((cfp = fopen(cf, "r")) == NULL)
294 return;
295 seteuid(uid);
296
297 if (rank < 0)
298 rank = 0;
299 if (pp->remote || garbage || strcmp(cf, current))
300 rank++;
301
302 /*
303 * The cf-file may include commands to print more than one datafile
304 * from the user. For each datafile, the cf-file contains at least
305 * one line which starts with some format-specifier ('a'-'z'), and
306 * a second line ('N'ame) which indicates the original name the user
307 * specified for that file. There can be multiple format-spec lines
308 * for a single Name-line, if the user requested multiple copies of
309 * that file. Standard lpr puts the format-spec line(s) before the
310 * Name-line, while lprNG puts the Name-line before the format-spec
311 * line(s). This section needs to handle the lines in either order.
312 */
313 copycnt = 0;
314 file[0] = '\0';
315 savedname[0] = '\0';
316 while (getline(cfp)) {
317 switch (line[0]) {
318 case 'P': /* Was this file specified in the user's list? */
319 if (!inlist(line+1, cf)) {
320 fclose(cfp);
321 return;
322 }
323 if (lflag) {
324 printf("\n%s: ", line+1);
325 col = strlen(line+1) + 2;
326 prank(rank);
327 blankfill(JOBCOL);
328 printf(" [job %s]\n", cf+3);
329 } else {
330 col = 0;
331 prank(rank);
332 blankfill(OWNCOL);
333 printf("%-10s %-3d ", line+1, atoi(cf+3));
334 col += 16;
335 first = 1;
336 }
337 continue;
338 default: /* some format specifer and file name? */
339 if (line[0] < 'a' || line[0] > 'z')
340 break;
341 if (copycnt == 0 || strcmp(file, line+1) != 0) {
342 strlcpy(file, line + 1, sizeof(file));
343 }
344 copycnt++;
345 /*
346 * deliberately 'continue' to another getline(), so
347 * all format-spec lines for this datafile are read
348 * in and counted before calling show()
349 */
350 continue;
351 case 'N':
352 strlcpy(savedname, line + 1, sizeof(savedname));
353 break;
354 }
355 if ((file[0] != '\0') && (savedname[0] != '\0')) {
356 show(savedname, file, copycnt);
357 copycnt = 0;
358 file[0] = '\0';
359 savedname[0] = '\0';
360 }
361 }
362 fclose(cfp);
363 /* check for a file which hasn't been shown yet */
364 if (file[0] != '\0') {
365 if (savedname[0] == '\0') {
366 /* a safeguard in case the N-ame line is missing */
367 strlcpy(savedname, file, sizeof(savedname));
368 }
369 show(savedname, file, copycnt);
370 }
371 if (!lflag) {
372 blankfill(SIZCOL);
373 printf("%ld bytes\n", totsize);
374 totsize = 0;
375 }
376}
377
378int
379inlist(char *uname, char *cfile)
380{
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381 int *r, n;
382 char **u, *cp;
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383
384 if (users == 0 && requests == 0)
385 return(1);
386 /*
387 * Check to see if it's in the user list
388 */
389 for (u = user; u < &user[users]; u++)
390 if (!strcmp(*u, uname))
391 return(1);
392 /*
393 * Check the request list
394 */
395 for (n = 0, cp = cfile+3; isdigit(*cp); )
396 n = n * 10 + (*cp++ - '0');
397 for (r = requ; r < &requ[requests]; r++)
398 if (*r == n && !strcmp(cp, from_host))
399 return(1);
400 return(0);
401}
402
403void
404show(const char *nfile, const char *datafile, int copies)
405{
406 if (strcmp(nfile, " ") == 0)
407 nfile = "(standard input)";
408 if (lflag)
409 ldump(nfile, datafile, copies);
410 else
411 dump(nfile, datafile, copies);
412}
413
414/*
415 * Fill the line with blanks to the specified column
416 */
417void
418blankfill(int tocol)
419{
420 while (col++ < tocol)
421 putchar(' ');
422}
423
424/*
425 * Give the abbreviated dump of the file names
426 */
427void
428dump(const char *nfile, const char *datafile, int copies)
429{
430 struct stat lbuf;
431 const char etctmpl[] = ", ...";
432 char etc[sizeof(etctmpl)];
433 char *lastsep;
434 short fill, nlen;
435 short rem, remetc;
436
437 /*
438 * Print as many filenames as will fit
439 * (leaving room for the 'total size' field)
440 */
441 fill = first ? 0 : 2; /* fill space for ``, '' */
442 nlen = strlen(nfile);
443 rem = SIZCOL - 1 - col;
444 if (nlen + fill > rem) {
445 if (first) {
446 /* print the right-most part of the name */
447 printf("...%s ", &nfile[3+nlen-rem]);
448 col = SIZCOL;
449 } else if (rem > 0) {
450 /* fit as much of the etc-string as we can */
451 remetc = rem;
452 if (rem > strlen(etctmpl))
453 remetc = strlen(etctmpl);
454 etc[0] = '\0';
455 strncat(etc, etctmpl, remetc);
456 printf("%s", etc);
457 col += remetc;
458 rem -= remetc;
459 /* room for the last segment of this filename? */
460 lastsep = strrchr(nfile, '/');
461 if ((lastsep != NULL) && (rem > strlen(lastsep))) {
462 /* print the right-most part of this name */
463 printf("%s", lastsep);
464 col += strlen(lastsep);
465 } else {
466 /* do not pack any more names in here */
467 blankfill(SIZCOL);
468 }
469 }
470 } else {
471 if (!first)
472 printf(", ");
473 printf("%s", nfile);
474 col += nlen + fill;
475 }
476 first = 0;
477
478 seteuid(euid);
479 if (*datafile && !stat(datafile, &lbuf))
480 totsize += copies * lbuf.st_size;
481 seteuid(uid);
482}
483
484/*
485 * Print the long info about the file
486 */
487void
488ldump(const char *nfile, const char *datafile, int copies)
489{
490 struct stat lbuf;
491
492 putchar('\t');
493 if (copies > 1)
494 printf("%-2d copies of %-19s", copies, nfile);
495 else
496 printf("%-32s", nfile);
497 if (*datafile && !stat(datafile, &lbuf))
498 printf(" %qd bytes", (long long) lbuf.st_size);
499 else
500 printf(" ??? bytes");
501 putchar('\n');
502}
503
504/*
505 * Print the job's rank in the queue,
506 * update col for screen management
507 */
508void
509prank(int n)
510{
511 char rline[100];
512 static const char *r[] = {
513 "th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"
514 };
515
516 if (n == 0) {
517 printf("active");
518 col += 6;
519 return;
520 }
521 if ((n/10)%10 == 1)
522 (void)snprintf(rline, sizeof(rline), "%dth", n);
523 else
524 (void)snprintf(rline, sizeof(rline), "%d%s", n, r[n%10]);
525 col += strlen(rline);
526 printf("%s", rline);
527}
528
529void
530alarmhandler(int signo __unused)
531{
532 /* the signal is ignored */
533 /* (the '__unused' is just to avoid a compile-time warning) */
534}