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.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
41 static char sccsid[] = "@(#)common.c 8.5 (Berkeley) 4/28/95";
43 static const char rcsid[] =
47 #include <sys/param.h>
50 #include <sys/types.h>
61 #include "pathnames.h"
64 * Routines and data common to all the line printer functions.
67 const char *progname; /* program name */
69 extern uid_t uid, euid;
71 static int compar(const void *_p1, const void *_p2);
74 * Getline reads a line from the control file cfp, removes tabs, converts
75 * new-line to null and leaves it in line.
76 * Returns 0 at EOF or the number of characters read.
81 register int linel = 0;
82 register char *lp = line;
85 while ((c = getc(cfp)) != '\n' && (size_t)(linel+1) < sizeof(line)) {
92 } while ((linel & 07) != 0 && (size_t)(linel+1) <
104 * Scan the current directory and make a list of daemon files sorted by
106 * Return the number of entries and a pointer to the list.
109 getq(const struct printer *pp, struct jobqueue *(*namelist[]))
111 register struct dirent *d;
112 register struct jobqueue *q, **queue;
113 size_t arraysz, nitems;
119 if ((dirp = opendir(pp->spool_dir)) == NULL) {
123 if (fstat(dirp->dd_fd, &stbuf) < 0)
128 * Estimate the array size by taking the size of the directory file
129 * and dividing it by a multiple of the minimum size entry.
131 arraysz = (stbuf.st_size / 24);
132 queue = (struct jobqueue **)malloc(arraysz * sizeof(struct jobqueue *));
137 while ((d = readdir(dirp)) != NULL) {
138 if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
139 continue; /* daemon control files only */
141 statres = stat(d->d_name, &stbuf);
144 continue; /* Doesn't exist */
145 q = (struct jobqueue *)malloc(sizeof(time_t) + strlen(d->d_name)
149 q->job_time = stbuf.st_mtime;
150 strcpy(q->job_cfname, d->d_name);
152 * Check to make sure the array has space left and
153 * realloc the maximum size.
155 if (++nitems > arraysz) {
157 queue = (struct jobqueue **)realloc((char *)queue,
158 arraysz * sizeof(struct jobqueue *));
166 qsort(queue, nitems, sizeof(struct jobqueue *), compar);
177 * Compare modification times.
180 compar(const void *p1, const void *p2)
182 const struct jobqueue *qe1, *qe2;
184 qe1 = *(const struct jobqueue **)p1;
185 qe2 = *(const struct jobqueue **)p2;
187 if (qe1->job_time < qe2->job_time)
189 if (qe1->job_time > qe2->job_time)
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.
198 if ((qe1->job_cfname[3] == '9') && (qe2->job_cfname[3] == '0'))
200 if ((qe1->job_cfname[3] == '0') && (qe2->job_cfname[3] == '9'))
202 return (strcmp(qe1->job_cfname, qe2->job_cfname));
205 /* sleep n milliseconds */
209 struct timeval tdelay;
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 (void) select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &tdelay);
220 lock_file_name(const struct printer *pp, char *buf, size_t len)
222 static char staticbuf[MAXPATHLEN];
229 if (pp->lock_file[0] == '/')
230 strlcpy(buf, pp->lock_file, len);
232 snprintf(buf, len, "%s/%s", pp->spool_dir, pp->lock_file);
238 status_file_name(const struct printer *pp, char *buf, size_t len)
240 static char staticbuf[MAXPATHLEN];
247 if (pp->status_file[0] == '/')
248 strlcpy(buf, pp->status_file, len);
250 snprintf(buf, len, "%s/%s", pp->spool_dir, pp->status_file);
255 /* routine to get a current timestamp, optionally in a standard-fmt string */
257 lpd_gettime(struct timespec *tsp, char *strp, size_t strsize)
259 struct timespec local_ts;
260 struct timeval btime;
261 char tempstr[TIMESTR_SIZE];
262 #ifdef STRFTIME_WRONG_z
269 /* some platforms have a routine called clock_gettime, but the
270 * routine does nothing but return "not implemented". */
271 memset(tsp, 0, sizeof(struct timespec));
272 if (clock_gettime(CLOCK_REALTIME, tsp)) {
273 /* nanosec-aware rtn failed, fall back to microsec-aware rtn */
274 memset(tsp, 0, sizeof(struct timespec));
275 gettimeofday(&btime, NULL);
276 tsp->tv_sec = btime.tv_sec;
277 tsp->tv_nsec = btime.tv_usec * 1000;
280 /* caller may not need a character-ized version */
281 if ((strp == NULL) || (strsize < 1))
284 strftime(tempstr, TIMESTR_SIZE, LPD_TIMESTAMP_PATTERN,
285 localtime(&tsp->tv_sec));
288 * This check is for implementations of strftime which treat %z
289 * (timezone as [+-]hhmm ) like %Z (timezone as characters), or
290 * completely ignore %z. This section is not needed on freebsd.
291 * I'm not sure this is completely right, but it should work OK
294 #ifdef STRFTIME_WRONG_z
295 destp = strrchr(tempstr, ':');
298 if ((*destp != '+') && (*destp != '-')) {
300 int tzmin = timezone / 60;
301 int tzhr = tzmin / 60;
304 strcpy(savday, destp + strlen(destp) - 4);
305 snprintf(destp, (destp - tempstr), "%+03d%02d",
306 (-1*tzhr), tzmin % 60);
307 strcat(destp, savday);
312 if (strsize > TIMESTR_SIZE) {
313 strsize = TIMESTR_SIZE;
314 strp[TIMESTR_SIZE+1] = '\0';
316 strlcpy(strp, tempstr, strsize);
319 /* routines for writing transfer-statistic records */
321 trstat_init(struct printer *pp, const char *fname, int filenum)
323 register const char *srcp;
324 register char *destp, *endp;
327 * Figure out the job id of this file. The filename should be
328 * 'cf', 'df', or maybe 'tf', followed by a letter (or sometimes
329 * two), followed by the jobnum, followed by a hostname.
330 * The jobnum is usually 3 digits, but might be as many as 5.
331 * Note that some care has to be taken parsing this, as the
332 * filename could be coming from a remote-host, and thus might
333 * not look anything like what is expected...
335 memset(pp->jobnum, 0, sizeof(pp->jobnum));
337 srcp = strchr(fname, '/');
340 destp = &(pp->jobnum[0]);
342 while (*srcp != '\0' && (*srcp < '0' || *srcp > '9'))
344 while (*srcp >= '0' && *srcp <= '9' && destp < endp)
345 *(destp++) = *(srcp++);
347 /* get the starting time in both numeric and string formats, and
348 * save those away along with the file-number */
349 pp->jobdfnum = filenum;
350 lpd_gettime(&pp->tr_start, pp->tr_timestr, (size_t)TIMESTR_SIZE);
356 trstat_write(struct printer *pp, tr_sendrecv sendrecv, size_t bytecnt,
357 const char *userid, const char *otherhost, const char *orighost)
359 #define STATLINE_SIZE 1024
363 char thishost[MAXHOSTNAMELEN], statline[STATLINE_SIZE];
365 const char *lprhost, *recvdev, *recvhost, *rectype;
366 const char *sendhost, *statfname;
367 #define UPD_EOSTAT(xStr) do { \
368 eostat = strchr(xStr, '\0'); \
369 remspace = eostat - xStr; \
372 lpd_gettime(&pp->tr_done, NULL, (size_t)0);
373 trtime = DIFFTIME_TS(pp->tr_done, pp->tr_start);
375 gethostname(thishost, sizeof(thishost));
376 lprhost = sendhost = recvhost = recvdev = NULL;
380 statfname = pp->stat_send;
382 recvhost = otherhost;
386 statfname = pp->stat_recv;
387 sendhost = otherhost;
392 * This case is for copying to a device (presumably local,
393 * though filters using things like 'net/CAP' can confuse
394 * this assumption...).
397 statfname = pp->stat_send;
399 recvdev = _PATH_DEFDEVLP;
400 if (pp->lp) recvdev = pp->lp;
403 /* internal error... should we syslog/printf an error? */
406 if (statfname == NULL)
410 * the original-host and userid are found out by reading thru the
411 * cf (control-file) for the job. Unfortunately, on incoming jobs
412 * the df's (data-files) are sent before the matching cf, so the
413 * orighost & userid are generally not-available for incoming jobs.
415 * (it would be nice to create a work-around for that..)
417 if (orighost && (*orighost != '\0'))
425 * Format of statline.
426 * Some of the keywords listed here are not implemented here, but
427 * they are listed to reserve the meaning for a given keyword.
428 * Fields are separated by a blank. The fields in statline are:
429 * <tstamp> - time the transfer started
430 * <ptrqueue> - name of the printer queue (the short-name...)
431 * <hname> - hostname the file originally came from (the
432 * 'lpr host'), if known, or "_na_" if not known.
433 * <xxx> - id of job from that host (generally three digits)
434 * <n> - file count (# of file within job)
435 * <rectype> - 4-byte field indicating the type of transfer
436 * statistics record. "send" means it's from the
437 * host sending a datafile, "recv" means it's from
438 * a host as it receives a datafile.
439 * user=<userid> - user who sent the job (if known)
440 * secs=<n> - seconds it took to transfer the file
441 * bytes=<n> - number of bytes transfered (ie, "bytecount")
442 * bps=<n.n>e<n> - Bytes/sec (if the transfer was "big enough"
443 * for this to be useful)
444 * ! top=<str> - type of printer (if the type is defined in
445 * printcap, and if this statline is for sending
446 * a file to that ptr)
447 * ! qls=<n> - queue-length at start of send/print-ing a job
448 * ! qle=<n> - queue-length at end of send/print-ing a job
449 * sip=<addr> - IP address of sending host, only included when
451 * shost=<hname> - sending host (if that does != the original host)
452 * rhost=<hname> - hostname receiving the file (ie, "destination")
453 * rdev=<dev> - device receiving the file, when the file is being
454 * send to a device instead of a remote host.
456 * Note: A single print job may be transferred multiple times. The
457 * original 'lpr' occurs on one host, and that original host might
458 * send to some interim host (or print server). That interim host
459 * might turn around and send the job to yet another host (most likely
460 * the real printer). The 'shost=' parameter is only included if the
461 * sending host for this particular transfer is NOT the same as the
462 * host which did the original 'lpr'.
464 * Many values have 'something=' tags before them, because they are
465 * in some sense "optional", or their order may vary. "Optional" may
466 * mean in the sense that different SITES might choose to have other
467 * fields in the record, or that some fields are only included under
468 * some circumstances. Programs processing these records should not
469 * assume the order or existence of any of these keyword fields.
471 snprintf(statline, STATLINE_SIZE, "%s %s %s %s %03ld %s",
472 pp->tr_timestr, pp->printer, lprhost, pp->jobnum,
473 pp->jobdfnum, rectype);
474 UPD_EOSTAT(statline);
476 if (userid != NULL) {
477 snprintf(eostat, remspace, " user=%s", userid);
478 UPD_EOSTAT(statline);
480 snprintf(eostat, remspace, " secs=%#.2f bytes=%lu", trtime,
481 (unsigned long)bytecnt);
482 UPD_EOSTAT(statline);
485 * The bps field duplicates info from bytes and secs, so do
486 * not bother to include it for very small files.
488 if ((bytecnt > 25000) && (trtime > 1.1)) {
489 snprintf(eostat, remspace, " bps=%#.2e",
490 ((double)bytecnt/trtime));
491 UPD_EOSTAT(statline);
494 if (sendrecv == TR_RECVING) {
495 if (remspace > 5+strlen(from_ip) ) {
496 snprintf(eostat, remspace, " sip=%s", from_ip);
497 UPD_EOSTAT(statline);
500 if (0 != strcmp(lprhost, sendhost)) {
501 if (remspace > 7+strlen(sendhost) ) {
502 snprintf(eostat, remspace, " shost=%s", sendhost);
503 UPD_EOSTAT(statline);
507 if (remspace > 7+strlen(recvhost) ) {
508 snprintf(eostat, remspace, " rhost=%s", recvhost);
509 UPD_EOSTAT(statline);
513 if (remspace > 6+strlen(recvdev) ) {
514 snprintf(eostat, remspace, " rdev=%s", recvdev);
515 UPD_EOSTAT(statline);
519 strcpy(eostat, "\n");
521 /* probably should back up to just before the final " x=".. */
522 strcpy(statline+STATLINE_SIZE-2, "\n");
524 statfile = open(statfname, O_WRONLY|O_APPEND, 0664);
526 /* statfile was given, but we can't open it. should we
527 * syslog/printf this as an error? */
530 write(statfile, statline, strlen(statline));
545 fatal(const struct printer *pp, const char *msg, ...)
547 fatal(pp, msg, va_alist)
548 const struct printer *pp;
559 /* this error message is being sent to the 'from_host' */
560 if (from_host != local_host)
561 (void)printf("%s: ", local_host);
562 (void)printf("%s: ", progname);
563 if (pp && pp->printer)
564 (void)printf("%s: ", pp->printer);
565 (void)vprintf(msg, ap);
572 * Close all file descriptors from START on up.
573 * This is a horrific kluge, since getdtablesize() might return
574 * ``infinity'', in which case we will be spending a long time
575 * closing ``files'' which were never open. Perhaps it would
576 * be better to close the first N fds, for some small value of N.
579 closeallfds(int start)
581 int stop = getdtablesize();
582 for (; start < stop; start++)