1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  * (c) UNIX System Laboratories, Inc.
5  * All or some portions of this file are derived from material licensed
6  * to the University of California by American Telephone and Telegraph
7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8  * the permission of UNIX System Laboratories, Inc.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  * @(#)common.c	8.5 (Berkeley) 4/28/95
39  * $FreeBSD: src/usr.sbin/lpr/common_source/common.c,v 1.12.2.17 2002/07/14 23:58:52 gad Exp $
40  * $DragonFly: src/usr.sbin/lpr/common_source/common.c,v 1.4 2004/12/18 22:48:03 swildner Exp $
41  */
42 
43 #include <sys/param.h>
44 #include <sys/stat.h>
45 #include <sys/time.h>
46 #include <sys/types.h>
47 
48 #include <dirent.h>
49 #include <errno.h>
50 #include <fcntl.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55 
56 #include "lp.h"
57 #include "lp.local.h"
58 #include "pathnames.h"
59 
60 /*
61  * Routines and data common to all the line printer functions.
62  */
63 char	line[BUFSIZ];
64 const char	*progname;		/* program name */
65 
66 extern uid_t	uid, euid;
67 
68 static int compar(const void *_p1, const void *_p2);
69 
70 /*
71  * Getline reads a line from the control file cfp, removes tabs, converts
72  *  new-line to null and leaves it in line.
73  * Returns 0 at EOF or the number of characters read.
74  */
75 int
76 getline(FILE *cfp)
77 {
78 	int linel = 0;
79 	char *lp = line;
80 	int c;
81 
82 	while ((c = getc(cfp)) != '\n' && (size_t)(linel+1) < sizeof(line)) {
83 		if (c == EOF)
84 			return(0);
85 		if (c == '\t') {
86 			do {
87 				*lp++ = ' ';
88 				linel++;
89 			} while ((linel & 07) != 0 && (size_t)(linel+1) <
90 			    sizeof(line));
91 			continue;
92 		}
93 		*lp++ = c;
94 		linel++;
95 	}
96 	*lp++ = '\0';
97 	return(linel);
98 }
99 
100 /*
101  * Scan the current directory and make a list of daemon files sorted by
102  * creation time.
103  * Return the number of entries and a pointer to the list.
104  */
105 int
106 getq(const struct printer *pp, struct jobqueue *(*namelist[]))
107 {
108 	struct dirent *d;
109 	struct jobqueue *q, **queue;
110 	size_t arraysz, entrysz, nitems;
111 	struct stat stbuf;
112 	DIR *dirp;
113 	int statres;
114 
115 	seteuid(euid);
116 	if ((dirp = opendir(pp->spool_dir)) == NULL) {
117 		seteuid(uid);
118 		return (-1);
119 	}
120 	if (fstat(dirp->dd_fd, &stbuf) < 0)
121 		goto errdone;
122 	seteuid(uid);
123 
124 	/*
125 	 * Estimate the array size by taking the size of the directory file
126 	 * and dividing it by a multiple of the minimum size entry.
127 	 */
128 	arraysz = (stbuf.st_size / 24);
129 	queue = (struct jobqueue **)malloc(arraysz * sizeof(struct jobqueue *));
130 	if (queue == NULL)
131 		goto errdone;
132 
133 	nitems = 0;
134 	while ((d = readdir(dirp)) != NULL) {
135 		if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
136 			continue;	/* daemon control files only */
137 		seteuid(euid);
138 		statres = stat(d->d_name, &stbuf);
139 		seteuid(uid);
140 		if (statres < 0)
141 			continue;	/* Doesn't exist */
142 		entrysz = sizeof(struct jobqueue) - sizeof(q->job_cfname) +
143 		    strlen(d->d_name) + 1;
144 		q = (struct jobqueue *)malloc(entrysz);
145 		if (q == NULL)
146 			goto errdone;
147 		q->job_matched = 0;
148 		q->job_processed = 0;
149 		q->job_time = stbuf.st_mtime;
150 		strcpy(q->job_cfname, d->d_name);
151 		/*
152 		 * Check to make sure the array has space left and
153 		 * realloc the maximum size.
154 		 */
155 		if (++nitems > arraysz) {
156 			arraysz *= 2;
157 			queue = (struct jobqueue **)realloc((char *)queue,
158 			    arraysz * sizeof(struct jobqueue *));
159 			if (queue == NULL)
160 				goto errdone;
161 		}
162 		queue[nitems-1] = q;
163 	}
164 	closedir(dirp);
165 	if (nitems)
166 		qsort(queue, nitems, sizeof(struct jobqueue *), compar);
167 	*namelist = queue;
168 	return(nitems);
169 
170 errdone:
171 	closedir(dirp);
172 	seteuid(uid);
173 	return (-1);
174 }
175 
176 /*
177  * Compare modification times.
178  */
179 static int
180 compar(const void *p1, const void *p2)
181 {
182 	const struct jobqueue *qe1, *qe2;
183 
184 	qe1 = *(const struct jobqueue * const *)p1;
185 	qe2 = *(const struct jobqueue * const *)p2;
186 
187 	if (qe1->job_time < qe2->job_time)
188 		return (-1);
189 	if (qe1->job_time > qe2->job_time)
190 		return (1);
191 	/*
192 	 * At this point, the two files have the same last-modification time.
193 	 * return a result based on filenames, so that 'cfA001some.host' will
194 	 * come before 'cfA002some.host'.  Since the jobid ('001') will wrap
195 	 * around when it gets to '999', we also assume that '9xx' jobs are
196 	 * older than '0xx' jobs.
197 	*/
198 	if ((qe1->job_cfname[3] == '9') && (qe2->job_cfname[3] == '0'))
199 		return (-1);
200 	if ((qe1->job_cfname[3] == '0') && (qe2->job_cfname[3] == '9'))
201 		return (1);
202 	return (strcmp(qe1->job_cfname, qe2->job_cfname));
203 }
204 
205 /* sleep n milliseconds */
206 void
207 delay(int millisec)
208 {
209 	struct timeval tdelay;
210 
211 	if (millisec <= 0 || millisec > 10000)
212 		fatal((struct printer *)0, /* fatal() knows how to deal */
213 		    "unreasonable delay period (%d)", millisec);
214 	tdelay.tv_sec = millisec / 1000;
215 	tdelay.tv_usec = millisec * 1000 % 1000000;
216 	select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &tdelay);
217 }
218 
219 char *
220 lock_file_name(const struct printer *pp, char *buf, size_t len)
221 {
222 	static char staticbuf[MAXPATHLEN];
223 
224 	if (buf == 0)
225 		buf = staticbuf;
226 	if (len == 0)
227 		len = MAXPATHLEN;
228 
229 	if (pp->lock_file[0] == '/')
230 		strlcpy(buf, pp->lock_file, len);
231 	else
232 		snprintf(buf, len, "%s/%s", pp->spool_dir, pp->lock_file);
233 
234 	return buf;
235 }
236 
237 char *
238 status_file_name(const struct printer *pp, char *buf, size_t len)
239 {
240 	static char staticbuf[MAXPATHLEN];
241 
242 	if (buf == 0)
243 		buf = staticbuf;
244 	if (len == 0)
245 		len = MAXPATHLEN;
246 
247 	if (pp->status_file[0] == '/')
248 		strlcpy(buf, pp->status_file, len);
249 	else
250 		snprintf(buf, len, "%s/%s", pp->spool_dir, pp->status_file);
251 
252 	return buf;
253 }
254 
255 /*
256  * Routine to change operational state of a print queue.  The operational
257  * state is indicated by the access bits on the lock file for the queue.
258  * At present, this is only called from various routines in lpc/cmds.c.
259  *
260  *  XXX - Note that this works by changing access-bits on the
261  *	file, and you can only do that if you are the owner of
262  *	the file, or root.  Thus, this won't really work for
263  *	userids in the "LPR_OPER" group, unless lpc is running
264  *	setuid to root (or maybe setuid to daemon).
265  *	Generally lpc is installed setgid to daemon, but does
266  *	not run setuid.
267  */
268 int
269 set_qstate(int action, const char *lfname)
270 {
271 	struct stat stbuf;
272 	mode_t chgbits, newbits, oldmask;
273 	const char *failmsg, *okmsg;
274 	static const char *nomsg = "no state msg";
275 	int chres, errsav, fd, res, statres;
276 
277 	/*
278 	 * Find what the current access-bits are.
279 	 */
280 	memset(&stbuf, 0, sizeof(stbuf));
281 	seteuid(euid);
282 	statres = stat(lfname, &stbuf);
283 	errsav = errno;
284 	seteuid(uid);
285 	if ((statres < 0) && (errsav != ENOENT)) {
286 		printf("\tcannot stat() lock file\n");
287 		return (SQS_STATFAIL);
288 		/* NOTREACHED */
289 	}
290 
291 	/*
292 	 * Determine which bit(s) should change for the requested action.
293 	 */
294 	chgbits = stbuf.st_mode;
295 	newbits = LOCK_FILE_MODE;
296 	okmsg = NULL;
297 	failmsg = NULL;
298 	if (action & SQS_QCHANGED) {
299 		chgbits |= LFM_RESET_QUE;
300 		newbits |= LFM_RESET_QUE;
301 		/* The okmsg is not actually printed for this case. */
302 		okmsg = nomsg;
303 		failmsg = "set queue-changed";
304 	}
305 	if (action & SQS_DISABLEQ) {
306 		chgbits |= LFM_QUEUE_DIS;
307 		newbits |= LFM_QUEUE_DIS;
308 		okmsg = "queuing disabled";
309 		failmsg = "disable queuing";
310 	}
311 	if (action & SQS_STOPP) {
312 		chgbits |= LFM_PRINT_DIS;
313 		newbits |= LFM_PRINT_DIS;
314 		okmsg = "printing disabled";
315 		failmsg = "disable printing";
316 		if (action & SQS_DISABLEQ) {
317 			okmsg = "printer and queuing disabled";
318 			failmsg = "disable queuing and printing";
319 		}
320 	}
321 	if (action & SQS_ENABLEQ) {
322 		chgbits &= ~LFM_QUEUE_DIS;
323 		newbits &= ~LFM_QUEUE_DIS;
324 		okmsg = "queuing enabled";
325 		failmsg = "enable queuing";
326 	}
327 	if (action & SQS_STARTP) {
328 		chgbits &= ~LFM_PRINT_DIS;
329 		newbits &= ~LFM_PRINT_DIS;
330 		okmsg = "printing enabled";
331 		failmsg = "enable printing";
332 	}
333 	if (okmsg == NULL) {
334 		/* This routine was called with an invalid action. */
335 		printf("\t<error in set_qstate!>\n");
336 		return (SQS_PARMERR);
337 		/* NOTREACHED */
338 	}
339 
340 	res = 0;
341 	if (statres >= 0) {
342 		/* The file already exists, so change the access. */
343 		seteuid(euid);
344 		chres = chmod(lfname, chgbits);
345 		errsav = errno;
346 		seteuid(uid);
347 		res = SQS_CHGOK;
348 		if (chres < 0)
349 			res = SQS_CHGFAIL;
350 	} else if (newbits == LOCK_FILE_MODE) {
351 		/*
352 		 * The file does not exist, but the state requested is
353 		 * the same as the default state when no file exists.
354 		 * Thus, there is no need to create the file.
355 		 */
356 		res = SQS_SKIPCREOK;
357 	} else {
358 		/*
359 		 * The file did not exist, so create it with the
360 		 * appropriate access bits for the requested action.
361 		 * Push a new umask around that create, to make sure
362 		 * all the read/write bits are set as desired.
363 		 */
364 		oldmask = umask(S_IWOTH);
365 		seteuid(euid);
366 		fd = open(lfname, O_WRONLY|O_CREAT, newbits);
367 		errsav = errno;
368 		seteuid(uid);
369 		umask(oldmask);
370 		res = SQS_CREFAIL;
371 		if (fd >= 0) {
372 			res = SQS_CREOK;
373 			close(fd);
374 		}
375 	}
376 
377 	switch (res) {
378 	case SQS_CHGOK:
379 	case SQS_CREOK:
380 	case SQS_SKIPCREOK:
381 		if (okmsg != nomsg)
382 			printf("\t%s\n", okmsg);
383 		break;
384 	case SQS_CREFAIL:
385 		printf("\tcannot create lock file: %s\n",
386 		    strerror(errsav));
387 		break;
388 	default:
389 		printf("\tcannot %s: %s\n", failmsg, strerror(errsav));
390 		break;
391 	}
392 
393 	return (res);
394 }
395 
396 /* routine to get a current timestamp, optionally in a standard-fmt string */
397 void
398 lpd_gettime(struct timespec *tsp, char *strp, size_t strsize)
399 {
400 	struct timespec local_ts;
401 	struct timeval btime;
402 	char tempstr[TIMESTR_SIZE];
403 #ifdef STRFTIME_WRONG_z
404 	char *destp;
405 #endif
406 
407 	if (tsp == NULL)
408 		tsp = &local_ts;
409 
410 	/* some platforms have a routine called clock_gettime, but the
411 	 * routine does nothing but return "not implemented". */
412 	memset(tsp, 0, sizeof(struct timespec));
413 	if (clock_gettime(CLOCK_REALTIME, tsp)) {
414 		/* nanosec-aware rtn failed, fall back to microsec-aware rtn */
415 		memset(tsp, 0, sizeof(struct timespec));
416 		gettimeofday(&btime, NULL);
417 		tsp->tv_sec = btime.tv_sec;
418 		tsp->tv_nsec = btime.tv_usec * 1000;
419 	}
420 
421 	/* caller may not need a character-ized version */
422 	if ((strp == NULL) || (strsize < 1))
423 		return;
424 
425 	strftime(tempstr, TIMESTR_SIZE, LPD_TIMESTAMP_PATTERN,
426 		 localtime(&tsp->tv_sec));
427 
428 	/*
429 	 * This check is for implementations of strftime which treat %z
430 	 * (timezone as [+-]hhmm ) like %Z (timezone as characters), or
431 	 * completely ignore %z.  This section is not needed on freebsd.
432 	 * I'm not sure this is completely right, but it should work OK
433 	 * for EST and EDT...
434 	 */
435 #ifdef STRFTIME_WRONG_z
436 	destp = strrchr(tempstr, ':');
437 	if (destp != NULL) {
438 		destp += 3;
439 		if ((*destp != '+') && (*destp != '-')) {
440 			char savday[6];
441 			int tzmin = timezone / 60;
442 			int tzhr = tzmin / 60;
443 			if (daylight)
444 				tzhr--;
445 			strcpy(savday, destp + strlen(destp) - 4);
446 			snprintf(destp, (destp - tempstr), "%+03d%02d",
447 			    (-1*tzhr), tzmin % 60);
448 			strcat(destp, savday);
449 		}
450 	}
451 #endif
452 
453 	if (strsize > TIMESTR_SIZE) {
454 		strsize = TIMESTR_SIZE;
455 		strp[TIMESTR_SIZE+1] = '\0';
456 	}
457 	strlcpy(strp, tempstr, strsize);
458 }
459 
460 /* routines for writing transfer-statistic records */
461 void
462 trstat_init(struct printer *pp, const char *fname, int filenum)
463 {
464 	const char *srcp;
465 	char *destp, *endp;
466 
467 	/*
468 	 * Figure out the job id of this file.  The filename should be
469 	 * 'cf', 'df', or maybe 'tf', followed by a letter (or sometimes
470 	 * two), followed by the jobnum, followed by a hostname.
471 	 * The jobnum is usually 3 digits, but might be as many as 5.
472 	 * Note that some care has to be taken parsing this, as the
473 	 * filename could be coming from a remote-host, and thus might
474 	 * not look anything like what is expected...
475 	 */
476 	memset(pp->jobnum, 0, sizeof(pp->jobnum));
477 	pp->jobnum[0] = '0';
478 	srcp = strchr(fname, '/');
479 	if (srcp == NULL)
480 		srcp = fname;
481 	destp = &(pp->jobnum[0]);
482 	endp = destp + 5;
483 	while (*srcp != '\0' && (*srcp < '0' || *srcp > '9'))
484 		srcp++;
485 	while (*srcp >= '0' && *srcp <= '9' && destp < endp)
486 		*(destp++) = *(srcp++);
487 
488 	/* get the starting time in both numeric and string formats, and
489 	 * save those away along with the file-number */
490 	pp->jobdfnum = filenum;
491 	lpd_gettime(&pp->tr_start, pp->tr_timestr, (size_t)TIMESTR_SIZE);
492 
493 	return;
494 }
495 
496 void
497 trstat_write(struct printer *pp, tr_sendrecv sendrecv, size_t bytecnt,
498     const char *userid, const char *otherhost, const char *orighost)
499 {
500 #define STATLINE_SIZE 1024
501 	double trtime;
502 	size_t remspace;
503 	int statfile;
504 	char thishost[MAXHOSTNAMELEN], statline[STATLINE_SIZE];
505 	char *eostat;
506 	const char *lprhost, *recvdev, *recvhost, *rectype;
507 	const char *sendhost, *statfname;
508 #define UPD_EOSTAT(xStr) do {         \
509 	eostat = strchr(xStr, '\0');  \
510 	remspace = eostat - xStr;     \
511 } while(0)
512 
513 	lpd_gettime(&pp->tr_done, NULL, (size_t)0);
514 	trtime = DIFFTIME_TS(pp->tr_done, pp->tr_start);
515 
516 	gethostname(thishost, sizeof(thishost));
517 	lprhost = sendhost = recvhost = recvdev = NULL;
518 	switch (sendrecv) {
519 	    case TR_SENDING:
520 		rectype = "send";
521 		statfname = pp->stat_send;
522 		sendhost = thishost;
523 		recvhost = otherhost;
524 		break;
525 	    case TR_RECVING:
526 		rectype = "recv";
527 		statfname = pp->stat_recv;
528 		sendhost = otherhost;
529 		recvhost = thishost;
530 		break;
531 	    case TR_PRINTING:
532 		/*
533 		 * This case is for copying to a device (presumably local,
534 		 * though filters using things like 'net/CAP' can confuse
535 		 * this assumption...).
536 		 */
537 		rectype = "prnt";
538 		statfname = pp->stat_send;
539 		sendhost = thishost;
540 		recvdev = _PATH_DEFDEVLP;
541 		if (pp->lp) recvdev = pp->lp;
542 		break;
543 	    default:
544 		/* internal error...  should we syslog/printf an error? */
545 		return;
546 	}
547 	if (statfname == NULL)
548 		return;
549 
550 	/*
551 	 * the original-host and userid are found out by reading thru the
552 	 * cf (control-file) for the job.  Unfortunately, on incoming jobs
553 	 * the df's (data-files) are sent before the matching cf, so the
554 	 * orighost & userid are generally not-available for incoming jobs.
555 	 *
556 	 * (it would be nice to create a work-around for that..)
557 	 */
558 	if (orighost && (*orighost != '\0'))
559 		lprhost = orighost;
560 	else
561 		lprhost = ".na.";
562 	if (*userid == '\0')
563 		userid = NULL;
564 
565 	/*
566 	 * Format of statline.
567 	 * Some of the keywords listed here are not implemented here, but
568 	 * they are listed to reserve the meaning for a given keyword.
569 	 * Fields are separated by a blank.  The fields in statline are:
570 	 *   <tstamp>      - time the transfer started
571 	 *   <ptrqueue>    - name of the printer queue (the short-name...)
572 	 *   <hname>       - hostname the file originally came from (the
573 	 *		     'lpr host'), if known, or  "_na_" if not known.
574 	 *   <xxx>         - id of job from that host (generally three digits)
575 	 *   <n>           - file count (# of file within job)
576 	 *   <rectype>     - 4-byte field indicating the type of transfer
577 	 *		     statistics record.  "send" means it's from the
578 	 *		     host sending a datafile, "recv" means it's from
579 	 *		     a host as it receives a datafile.
580 	 *   user=<userid> - user who sent the job (if known)
581 	 *   secs=<n>      - seconds it took to transfer the file
582 	 *   bytes=<n>     - number of bytes transfered (ie, "bytecount")
583 	 *   bps=<n.n>e<n> - Bytes/sec (if the transfer was "big enough"
584 	 *		     for this to be useful)
585 	 * ! top=<str>     - type of printer (if the type is defined in
586 	 *		     printcap, and if this statline is for sending
587 	 *		     a file to that ptr)
588 	 * ! qls=<n>       - queue-length at start of send/print-ing a job
589 	 * ! qle=<n>       - queue-length at end of send/print-ing a job
590 	 *   sip=<addr>    - IP address of sending host, only included when
591 	 *		     receiving a job.
592 	 *   shost=<hname> - sending host (if that does != the original host)
593 	 *   rhost=<hname> - hostname receiving the file (ie, "destination")
594 	 *   rdev=<dev>    - device receiving the file, when the file is being
595 	 *		     send to a device instead of a remote host.
596 	 *
597 	 * Note: A single print job may be transferred multiple times.  The
598 	 * original 'lpr' occurs on one host, and that original host might
599 	 * send to some interim host (or print server).  That interim host
600 	 * might turn around and send the job to yet another host (most likely
601 	 * the real printer).  The 'shost=' parameter is only included if the
602 	 * sending host for this particular transfer is NOT the same as the
603 	 * host which did the original 'lpr'.
604 	 *
605 	 * Many values have 'something=' tags before them, because they are
606 	 * in some sense "optional", or their order may vary.  "Optional" may
607 	 * mean in the sense that different SITES might choose to have other
608 	 * fields in the record, or that some fields are only included under
609 	 * some circumstances.  Programs processing these records should not
610 	 * assume the order or existence of any of these keyword fields.
611 	 */
612 	snprintf(statline, STATLINE_SIZE, "%s %s %s %s %03ld %s",
613 	    pp->tr_timestr, pp->printer, lprhost, pp->jobnum,
614 	    pp->jobdfnum, rectype);
615 	UPD_EOSTAT(statline);
616 
617 	if (userid != NULL) {
618 		snprintf(eostat, remspace, " user=%s", userid);
619 		UPD_EOSTAT(statline);
620 	}
621 	snprintf(eostat, remspace, " secs=%#.2f bytes=%lu", trtime,
622 	    (unsigned long)bytecnt);
623 	UPD_EOSTAT(statline);
624 
625 	/*
626 	 * The bps field duplicates info from bytes and secs, so do
627 	 * not bother to include it for very small files.
628 	 */
629 	if ((bytecnt > 25000) && (trtime > 1.1)) {
630 		snprintf(eostat, remspace, " bps=%#.2e",
631 		    ((double)bytecnt/trtime));
632 		UPD_EOSTAT(statline);
633 	}
634 
635 	if (sendrecv == TR_RECVING) {
636 		if (remspace > 5+strlen(from_ip) ) {
637 			snprintf(eostat, remspace, " sip=%s", from_ip);
638 			UPD_EOSTAT(statline);
639 		}
640 	}
641 	if (0 != strcmp(lprhost, sendhost)) {
642 		if (remspace > 7+strlen(sendhost) ) {
643 			snprintf(eostat, remspace, " shost=%s", sendhost);
644 			UPD_EOSTAT(statline);
645 		}
646 	}
647 	if (recvhost) {
648 		if (remspace > 7+strlen(recvhost) ) {
649 			snprintf(eostat, remspace, " rhost=%s", recvhost);
650 			UPD_EOSTAT(statline);
651 		}
652 	}
653 	if (recvdev) {
654 		if (remspace > 6+strlen(recvdev) ) {
655 			snprintf(eostat, remspace, " rdev=%s", recvdev);
656 			UPD_EOSTAT(statline);
657 		}
658 	}
659 	if (remspace > 1) {
660 		strcpy(eostat, "\n");
661 	} else {
662 		/* probably should back up to just before the final " x=".. */
663 		strcpy(statline+STATLINE_SIZE-2, "\n");
664 	}
665 	statfile = open(statfname, O_WRONLY|O_APPEND, 0664);
666 	if (statfile < 0) {
667 		/* statfile was given, but we can't open it.  should we
668 		 * syslog/printf this as an error? */
669 		return;
670 	}
671 	write(statfile, statline, strlen(statline));
672 	close(statfile);
673 
674 	return;
675 #undef UPD_EOSTAT
676 }
677 
678 #include <stdarg.h>
679 
680 void
681 fatal(const struct printer *pp, const char *msg, ...)
682 {
683 	va_list ap;
684 	va_start(ap, msg);
685 	/* this error message is being sent to the 'from_host' */
686 	if (from_host != local_host)
687 		printf("%s: ", local_host);
688 	printf("%s: ", progname);
689 	if (pp && pp->printer)
690 		printf("%s: ", pp->printer);
691 	vprintf(msg, ap);
692 	va_end(ap);
693 	putchar('\n');
694 	exit(1);
695 }
696 
697 /*
698  * Close all file descriptors from START on up.
699  * This is a horrific kluge, since getdtablesize() might return
700  * ``infinity'', in which case we will be spending a long time
701  * closing ``files'' which were never open.  Perhaps it would
702  * be better to close the first N fds, for some small value of N.
703  */
704 void
705 closeallfds(int start)
706 {
707 	int stop = getdtablesize();
708 	for (; start < stop; start++)
709 		close(start);
710 }
711 
712