freebsd-dev/usr.sbin/lpr/lpq/lpq.c
Garrett Wollman 4a1a0dbedb Mega lpd/lpd upgrade, part I:
- Get rid of a lot of the static variables which were shared by
  many routines and programs in the suite.
- Create an abstract interface to the printcap database, so that
  other retrieval and iteration mechanisms could be developed
  (e.g., YP, Hesiod, or automatic retrieval from a trusted server).
- Give each capability a human-readable name in addition to the historic
  two-character one.
- Otherwise generally clean up a lot of dark corners.  Many still remain.
- When submitting jobs, use the official login name record (from getlogin())
  if there is one, rather than reverse-mapping the uid.

More to come...
1997-12-02 20:46:22 +00:00

201 lines
5.0 KiB
C

/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
/*
static char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95";
*/
static const char rcsid[] =
"$Id$";
#endif /* not lint */
/*
* Spool Queue examination program
*
* lpq [-a] [-l] [-Pprinter] [user...] [job...]
*
* -a show all non-null queues on the local machine
* -l long output
* -P used to identify printer as per lpr/lprm
*/
#include <sys/param.h>
#include <ctype.h>
#include <dirent.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <unistd.h>
#include "lp.h"
#include "lp.local.h"
#include "pathnames.h"
int requ[MAXREQUESTS]; /* job number of spool entries */
int requests; /* # of spool requests */
char *user[MAXUSERS]; /* users to process */
int users; /* # of users in user array */
uid_t uid, euid;
static int ckqueue __P((const struct printer *));
static void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
int ch, aflag, lflag;
char *printer;
struct printer myprinter, *pp = &myprinter;
printer = NULL;
euid = geteuid();
uid = getuid();
seteuid(uid);
name = *argv;
if (gethostname(host, sizeof(host)))
err(1, "gethostname");
openlog("lpd", 0, LOG_LPR);
aflag = lflag = 0;
while ((ch = getopt(argc, argv, "alP:")) != -1)
switch((char)ch) {
case 'a':
++aflag;
break;
case 'l': /* long output */
++lflag;
break;
case 'P': /* printer name */
printer = optarg;
break;
case '?':
default:
usage();
}
if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
printer = DEFLP;
for (argc -= optind, argv += optind; argc; --argc, ++argv)
if (isdigit(argv[0][0])) {
if (requests >= MAXREQUESTS)
fatal(0, "too many requests");
requ[requests++] = atoi(*argv);
}
else {
if (users >= MAXUSERS)
fatal(0, "too many users");
user[users++] = *argv;
}
if (aflag) {
int more, status;
more = firstprinter(pp, &status);
if (status)
goto looperr;
while (more) {
if (ckqueue(pp) > 0) {
printf("%s:\n", pp->printer);
displayq(pp, lflag);
printf("\n");
}
do {
more = nextprinter(pp, &status);
looperr:
switch (status) {
case PCAPERR_TCOPEN:
printf("warning: %s: unresolved "
"tc= reference(s) ",
pp->printer);
case PCAPERR_SUCCESS:
break;
default:
fatal(pp, pcaperr(status));
}
} while (more && status);
}
} else {
int status;
init_printer(pp);
status = getprintcap(printer, pp);
if (status < 0)
fatal(pp, pcaperr(status));
displayq(pp, lflag);
}
exit(0);
}
static int
ckqueue(pp)
const struct printer *pp;
{
register struct dirent *d;
DIR *dirp;
char *spooldir;
spooldir = pp->spool_dir;
if ((dirp = opendir(spooldir)) == NULL)
return (-1);
while ((d = readdir(dirp)) != NULL) {
if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
continue; /* daemon control files only */
closedir(dirp);
return (1); /* found something */
}
closedir(dirp);
return (0);
}
static void
usage()
{
fprintf(stderr,
"usage: lpq [-a] [-l] [-Pprinter] [user ...] [job ...]\n");
exit(1);
}