2 * Copyright 1997 Massachusetts Institute of Technology
4 * Permission to use, copy, modify, and distribute this software and
5 * its documentation for any purpose and without fee is hereby
6 * granted, provided that both the above copyright notice and this
7 * permission notice appear in all copies, that both the above
8 * copyright notice and this permission notice appear in all
9 * supporting documentation, and that the name of M.I.T. not be used
10 * in advertising or publicity pertaining to distribution of the
11 * software without specific, written prior permission. M.I.T. makes
12 * no representations about the suitability of this software for any
13 * purpose. It is provided "as is" without express or implied
16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (C) 1997, Massachusetts Institute of Technology
30 * $FreeBSD: src/usr.sbin/lpr/chkprintcap/chkprintcap.c,v 1.3.2.2 2002/04/18 20:45:23 gad Exp $
33 #include <sys/types.h>
34 #include <sys/queue.h>
45 #include <sys/param.h> /* needed for lp.h but not used here */
46 #include <dirent.h> /* ditto */
49 #include "pathnames.h"
50 #include "skimprintcap.h"
52 static void check_spool_dirs(void);
53 static int interpret_error(const struct printer *pp, int error);
54 static void make_spool_dir(const struct printer *pp);
55 static void note_spool_dir(const struct printer *pp, const struct stat *st);
56 static void usage(void) __dead2;
58 static int problems; /* number of problems encountered */
61 * chkprintcap - check the printcap file for syntactic and semantic errors
62 * Returns the number of problems found.
65 main(int argc, char **argv)
67 struct skiminfo *skres;
69 int c, error, makedirs, more, queuecnt, verbosity;
70 struct printer myprinter, *pp;
78 while ((c = getopt(argc, argv, "df:v")) != -1) {
85 pcap_fname = strdup(optarg);
86 setprintcap(pcap_fname);
101 if (pcap_fname == NULL)
102 pcap_fname = strdup(_PATH_PRINTCAP);
105 * Skim through the printcap file looking for simple user-mistakes
106 * which will produce the wrong result for the user, but which may
107 * be pretty hard for the user to notice. Such user-mistakes will
108 * only generate warning messages. The (fatal-) problem count will
109 * only be incremented if there is a system problem trying to read
112 skres = skim_printcap(pcap_fname, verbosity);
114 return (skres->fatalerr);
117 * Now use the standard capability-db routines to check the values
118 * in each of the queues defined in the printcap file.
120 more = firstprinter(pp, &error);
121 if (interpret_error(pp, error) && more)
129 if (stat(pp->spool_dir, &stab) < 0) {
130 if (errno == ENOENT && makedirs) {
134 warn("%s: %s", pp->printer, pp->spool_dir);
137 note_spool_dir(pp, &stab);
140 /* Make other queue-specific validity checks here... */
143 more = nextprinter(pp, &error);
144 if (interpret_error(pp, error) && more)
150 if (queuecnt != skres->entries) {
151 warnx("WARNING: found %d entries when skimming %s,",
152 skres->entries, pcap_fname);
153 warnx("WARNING: but only found %d queues to process!",
160 * Interpret the error code. Returns 1 if we should skip to the next
161 * record (as this record is unlikely to make sense). If the problem
162 * is very severe, exit. Otherwise, return zero.
165 interpret_error(const struct printer *pp, int error)
169 err(++problems, "reading printer database");
172 warnx("%s: loop detected in tc= expansion", pp->printer);
175 warnx("%s: unresolved tc= expansion", pp->printer);
177 case PCAPERR_SUCCESS:
180 errx(++problems, "unknown printcap library error %d", error);
186 * Keep the list of spool directories. Note that we don't whine
187 * until all spool directories are noted, so that all of the more serious
188 * problems are noted first. We keep the list sorted by st_dev and
189 * st_ino, so that the problem spool directories can be noted in
193 LIST_ENTRY(dirlist) link;
199 static LIST_HEAD(, dirlist) dirlist;
202 lessp(const struct dirlist *a, const struct dirlist *b)
204 if (a->stab.st_dev == b->stab.st_dev)
205 return a->stab.st_ino < b->stab.st_ino;
206 return a->stab.st_dev < b->stab.st_dev;
210 equal(const struct dirlist *a, const struct dirlist *b)
212 return ((a->stab.st_dev == b->stab.st_dev)
213 && (a->stab.st_ino == b->stab.st_ino));
217 note_spool_dir(const struct printer *pp, const struct stat *st)
219 struct dirlist *dp, *dp2, *last;
221 dp = malloc(sizeof *dp);
223 err(++problems, "malloc(%lu)", (u_long)sizeof *dp);
226 dp->printer = strdup(pp->printer);
227 if (dp->printer == 0)
228 err(++problems, "malloc(%lu)", strlen(pp->printer) + 1UL);
229 dp->path = strdup(pp->spool_dir);
231 err(++problems, "malloc(%lu)", strlen(pp->spool_dir) + 1UL);
234 LIST_FOREACH(dp2, &dirlist, link) {
241 LIST_INSERT_AFTER(last, dp, link);
243 LIST_INSERT_HEAD(&dirlist, dp, link);
248 check_spool_dirs(void)
250 struct dirlist *dp, *dp2;
252 for (dp = LIST_FIRST(&dirlist); dp; dp = dp2) {
253 dp2 = LIST_NEXT(dp, link);
255 if (dp2 != NULL && equal(dp, dp2)) {
257 if (strcmp(dp->path, dp2->path) == 0) {
258 warnx("%s and %s share the same spool, %s",
259 dp->printer, dp2->printer, dp->path);
261 warnx("%s (%s) and %s (%s) are the same "
262 "directory", dp->path, dp->printer,
263 dp2->path, dp2->printer);
266 /* Should probably check owners and modes here. */
270 #ifndef SPOOL_DIR_MODE
271 #define SPOOL_DIR_MODE (S_IRUSR | S_IWUSR | S_IXUSR \
272 | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
276 make_spool_dir(const struct printer *pp)
278 char *sd = pp->spool_dir;
282 if (mkdir(sd, S_IRUSR | S_IXUSR) < 0) {
284 warn("%s: mkdir %s", pp->printer, sd);
287 gr = getgrnam("daemon");
289 errx(++problems, "cannot locate daemon group");
291 if (chown(sd, pp->daemon_user, gr->gr_gid) < 0) {
293 warn("%s: cannot change ownership to %ld:%ld", sd,
294 (long)pp->daemon_user, (long)gr->gr_gid);
298 if (chmod(sd, SPOOL_DIR_MODE) < 0) {
300 warn("%s: cannot change mode to %lo", sd, (long)SPOOL_DIR_MODE);
303 if (stat(sd, &stab) < 0)
304 err(++problems, "stat: %s", sd);
306 note_spool_dir(pp, &stab);
312 fprintf(stderr, "usage:\n\tchkprintcap [-dv] [-f printcapfile]\n");