1651 lines
39 KiB
C
1651 lines
39 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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/*
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static char sccsid[] = "@(#)printjob.c 8.7 (Berkeley) 5/10/95";
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*/
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static const char rcsid[] =
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"$Id: printjob.c,v 1.19 1998/08/21 18:08:46 brian Exp $";
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#endif /* not lint */
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/*
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* printjob -- print jobs in the queue.
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*
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* NOTE: the lock file is used to pass information to lpq and lprm.
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* it does not need to be removed because file locks are dynamic.
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*/
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#include <sys/param.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <signal.h>
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#include <syslog.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <time.h>
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#include "lp.h"
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#include "lp.local.h"
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#include "pathnames.h"
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#include "extern.h"
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#define DORETURN 0 /* absorb fork error */
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#define DOABORT 1 /* abort if dofork fails */
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/*
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* Error tokens
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*/
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#define REPRINT -2
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#define ERROR -1
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#define OK 0
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#define FATALERR 1
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#define NOACCT 2
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#define FILTERERR 3
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#define ACCESS 4
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static dev_t fdev; /* device of file pointed to by symlink */
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static ino_t fino; /* inode of file pointed to by symlink */
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static FILE *cfp; /* control file */
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static int child; /* id of any filters */
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static int lfd; /* lock file descriptor */
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static int ofd; /* output filter file descriptor */
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static int ofilter; /* id of output filter, if any */
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static int tfd = -1; /* output filter temp file output */
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static int pfd; /* prstatic inter file descriptor */
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static int pid; /* pid of lpd process */
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static int prchild; /* id of pr process */
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static char title[80]; /* ``pr'' title */
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static char class[32]; /* classification field */
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static char fromhost[32]; /* user's host machine */
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/* indentation size in static characters */
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static char indent[10] = "-i0";
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static char jobname[100]; /* job or file name */
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static char length[10] = "-l"; /* page length in lines */
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static char logname[32]; /* user's login name */
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static char pxlength[10] = "-y"; /* page length in pixels */
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static char pxwidth[10] = "-x"; /* page width in pixels */
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static char tempfile[] = "errsXXXXXX"; /* file name for filter errors */
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static char width[10] = "-w"; /* page width in static characters */
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#define TFILENAME "fltXXXXXX"
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static char tfile[] = TFILENAME; /* file name for filter output */
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static void abortpr __P((int));
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static void alarmhandler __P((int));
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static void banner __P((struct printer *pp, char *name1, char *name2));
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static int dofork __P((const struct printer *pp, int action));
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static int dropit __P((int));
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static void init __P((struct printer *pp));
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static void openpr __P((const struct printer *pp));
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static void opennet __P((const struct printer *pp));
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static void opentty __P((const struct printer *pp));
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static void openrem __P((const struct printer *pp));
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static int print __P((struct printer *pp, int format, char *file));
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static int printit __P((struct printer *pp, char *file));
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static void pstatus __P((const struct printer *, const char *, ...));
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static char response __P((const struct printer *pp));
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static void scan_out __P((struct printer *pp, int scfd, char *scsp,
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int dlm));
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static char *scnline __P((int, char *, int));
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static int sendfile __P((struct printer *pp, int type, char *file,
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int format));
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static int sendit __P((struct printer *pp, char *file));
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static void sendmail __P((struct printer *pp, char *user, int bombed));
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static void setty __P((const struct printer *pp));
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void
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printjob(pp)
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struct printer *pp;
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{
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struct stat stb;
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register struct queue *q, **qp;
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struct queue **queue;
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register int i, nitems;
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off_t pidoff;
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int errcnt, count = 0;
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init(pp); /* set up capabilities */
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(void) write(1, "", 1); /* ack that daemon is started */
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(void) close(2); /* set up log file */
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if (open(pp->log_file, O_WRONLY|O_APPEND, LOG_FILE_MODE) < 0) {
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syslog(LOG_ERR, "%s: %m", pp->log_file);
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(void) open(_PATH_DEVNULL, O_WRONLY);
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}
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setgid(getegid());
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pid = getpid(); /* for use with lprm */
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setpgrp(0, pid);
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signal(SIGHUP, abortpr);
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signal(SIGINT, abortpr);
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signal(SIGQUIT, abortpr);
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signal(SIGTERM, abortpr);
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(void) mktemp(tempfile);
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/*
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* uses short form file names
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*/
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if (chdir(pp->spool_dir) < 0) {
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syslog(LOG_ERR, "%s: %m", pp->spool_dir);
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exit(1);
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}
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if (stat(pp->lock_file, &stb) == 0 && (stb.st_mode & LFM_PRINT_DIS))
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exit(0); /* printing disabled */
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lfd = open(pp->lock_file, O_WRONLY|O_CREAT|O_EXLOCK|O_NONBLOCK,
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LOCK_FILE_MODE);
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if (lfd < 0) {
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if (errno == EWOULDBLOCK) /* active daemon present */
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exit(0);
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syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file);
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exit(1);
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}
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/* turn off non-blocking mode (was turned on for lock effects only) */
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if (fcntl(lfd, F_SETFL, 0) < 0) {
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syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file);
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exit(1);
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}
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ftruncate(lfd, 0);
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/*
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* write process id for others to know
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*/
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sprintf(line, "%u\n", pid);
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pidoff = i = strlen(line);
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if (write(lfd, line, i) != i) {
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syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file);
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exit(1);
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}
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/*
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* search the spool directory for work and sort by queue order.
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*/
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if ((nitems = getq(pp, &queue)) < 0) {
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syslog(LOG_ERR, "%s: can't scan %s", pp->printer,
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pp->spool_dir);
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exit(1);
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}
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if (nitems == 0) /* no work to do */
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exit(0);
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if (stb.st_mode & LFM_RESET_QUE) { /* reset queue flag */
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if (fchmod(lfd, stb.st_mode & ~LFM_RESET_QUE) < 0)
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syslog(LOG_ERR, "%s: %s: %m", pp->printer,
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pp->lock_file);
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}
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openpr(pp); /* open printer or remote */
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again:
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/*
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* we found something to do now do it --
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* write the name of the current control file into the lock file
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* so the spool queue program can tell what we're working on
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*/
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for (qp = queue; nitems--; free((char *) q)) {
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q = *qp++;
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if (stat(q->q_name, &stb) < 0)
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continue;
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errcnt = 0;
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restart:
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(void) lseek(lfd, pidoff, 0);
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(void) snprintf(line, sizeof(line), "%s\n", q->q_name);
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i = strlen(line);
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if (write(lfd, line, i) != i)
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syslog(LOG_ERR, "%s: %s: %m", pp->printer,
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pp->lock_file);
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if (!pp->remote)
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i = printit(pp, q->q_name);
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else
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i = sendit(pp, q->q_name);
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/*
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* Check to see if we are supposed to stop printing or
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* if we are to rebuild the queue.
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*/
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if (fstat(lfd, &stb) == 0) {
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/* stop printing before starting next job? */
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if (stb.st_mode & LFM_PRINT_DIS)
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goto done;
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/* rebuild queue (after lpc topq) */
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if (stb.st_mode & LFM_RESET_QUE) {
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for (free(q); nitems--; free(q))
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q = *qp++;
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if (fchmod(lfd, stb.st_mode & ~LFM_RESET_QUE)
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< 0)
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syslog(LOG_WARNING, "%s: %s: %m",
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pp->printer, pp->lock_file);
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break;
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}
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}
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if (i == OK) /* file ok and printed */
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count++;
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else if (i == REPRINT && ++errcnt < 5) {
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/* try reprinting the job */
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syslog(LOG_INFO, "restarting %s", pp->printer);
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if (ofilter > 0) {
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kill(ofilter, SIGCONT); /* to be sure */
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(void) close(ofd);
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while ((i = wait(NULL)) > 0 && i != ofilter)
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;
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ofilter = 0;
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}
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(void) close(pfd); /* close printer */
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if (ftruncate(lfd, pidoff) < 0)
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syslog(LOG_WARNING, "%s: %s: %m",
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pp->printer, pp->lock_file);
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openpr(pp); /* try to reopen printer */
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goto restart;
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} else {
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syslog(LOG_WARNING, "%s: job could not be %s (%s)",
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pp->printer,
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pp->remote ? "sent to remote host" : "printed",
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q->q_name);
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if (i == REPRINT) {
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/* ensure we don't attempt this job again */
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(void) unlink(q->q_name);
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q->q_name[0] = 'd';
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(void) unlink(q->q_name);
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if (logname[0])
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sendmail(pp, logname, FATALERR);
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}
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}
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}
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free(queue);
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/*
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* search the spool directory for more work.
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*/
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if ((nitems = getq(pp, &queue)) < 0) {
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syslog(LOG_ERR, "%s: can't scan %s", pp->printer,
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pp->spool_dir);
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exit(1);
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}
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if (nitems == 0) { /* no more work to do */
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done:
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if (count > 0) { /* Files actually printed */
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if (!pp->no_formfeed && !pp->tof)
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(void) write(ofd, pp->form_feed,
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strlen(pp->form_feed));
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if (pp->trailer != NULL) /* output trailer */
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(void) write(ofd, pp->trailer,
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strlen(pp->trailer));
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}
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(void) close(ofd);
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(void) wait(NULL);
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(void) unlink(tempfile);
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exit(0);
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}
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goto again;
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}
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char fonts[4][50]; /* fonts for troff */
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char ifonts[4][40] = {
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_PATH_VFONTR,
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_PATH_VFONTI,
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_PATH_VFONTB,
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_PATH_VFONTS,
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};
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/*
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* The remaining part is the reading of the control file (cf)
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* and performing the various actions.
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*/
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static int
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printit(pp, file)
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struct printer *pp;
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char *file;
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{
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register int i;
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char *cp;
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int bombed = OK;
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/*
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* open control file; ignore if no longer there.
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*/
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if ((cfp = fopen(file, "r")) == NULL) {
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syslog(LOG_INFO, "%s: %s: %m", pp->printer, file);
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return(OK);
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}
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/*
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* Reset troff fonts.
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*/
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for (i = 0; i < 4; i++)
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strcpy(fonts[i], ifonts[i]);
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sprintf(&width[2], "%ld", pp->page_width);
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strcpy(indent+2, "0");
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/*
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* read the control file for work to do
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*
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* file format -- first character in the line is a command
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* rest of the line is the argument.
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* valid commands are:
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*
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* S -- "stat info" for symbolic link protection
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* J -- "job name" on banner page
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* C -- "class name" on banner page
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* L -- "literal" user's name to print on banner
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* T -- "title" for pr
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* H -- "host name" of machine where lpr was done
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* P -- "person" user's login name
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* I -- "indent" amount to indent output
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* R -- laser dpi "resolution"
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* f -- "file name" name of text file to print
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* l -- "file name" text file with control chars
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* p -- "file name" text file to print with pr(1)
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* t -- "file name" troff(1) file to print
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* n -- "file name" ditroff(1) file to print
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* d -- "file name" dvi file to print
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* g -- "file name" plot(1G) file to print
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* v -- "file name" plain raster file to print
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* c -- "file name" cifplot file to print
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* 1 -- "R font file" for troff
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* 2 -- "I font file" for troff
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* 3 -- "B font file" for troff
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* 4 -- "S font file" for troff
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* N -- "name" of file (used by lpq)
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* U -- "unlink" name of file to remove
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* (after we print it. (Pass 2 only)).
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* M -- "mail" to user when done printing
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*
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* getline reads a line and expands tabs to blanks
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*/
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/* pass 1 */
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while (getline(cfp))
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switch (line[0]) {
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case 'H':
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strncpy(fromhost, line+1, sizeof(fromhost) - 1);
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fromhost[sizeof(fromhost) - 1] = '\0';
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if (class[0] == '\0') {
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strncpy(class, line+1, sizeof(class) - 1);
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class[sizeof(class) - 1] = '\0';
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}
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continue;
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case 'P':
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strncpy(logname, line+1, sizeof(logname) - 1);
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logname[sizeof(logname) - 1] = '\0';
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if (pp->restricted) { /* restricted */
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if (getpwnam(logname) == NULL) {
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bombed = NOACCT;
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sendmail(pp, line+1, bombed);
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goto pass2;
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}
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}
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continue;
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case 'S':
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cp = line+1;
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i = 0;
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while (*cp >= '0' && *cp <= '9')
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i = i * 10 + (*cp++ - '0');
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fdev = i;
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cp++;
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i = 0;
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while (*cp >= '0' && *cp <= '9')
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i = i * 10 + (*cp++ - '0');
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fino = i;
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continue;
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|
|
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case 'J':
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if (line[1] != '\0') {
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strncpy(jobname, line+1, sizeof(jobname) - 1);
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jobname[sizeof(jobname) - 1] = '\0';
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} else
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strcpy(jobname, " ");
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continue;
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|
|
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case 'C':
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if (line[1] != '\0')
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strncpy(class, line+1, sizeof(class) - 1);
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else if (class[0] == '\0')
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gethostname(class, sizeof(class));
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class[sizeof(class) - 1] = '\0';
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continue;
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|
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case 'T': /* header title for pr */
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strncpy(title, line+1, sizeof(title) - 1);
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title[sizeof(title) - 1] = '\0';
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continue;
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|
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case 'L': /* identification line */
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if (!pp->no_header && !pp->header_last)
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banner(pp, line+1, jobname);
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continue;
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case '1': /* troff fonts */
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case '2':
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case '3':
|
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case '4':
|
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if (line[1] != '\0') {
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strncpy(fonts[line[0]-'1'], line+1,
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50-1);
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fonts[line[0]-'1'][50-1] = '\0';
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}
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continue;
|
|
|
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case 'W': /* page width */
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strncpy(width+2, line+1, sizeof(width) - 3);
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width[2+sizeof(width) - 3] = '\0';
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continue;
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|
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case 'I': /* indent amount */
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strncpy(indent+2, line+1, sizeof(indent) - 3);
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indent[2+sizeof(indent) - 3] = '\0';
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continue;
|
|
|
|
default: /* some file to print */
|
|
switch (i = print(pp, line[0], line+1)) {
|
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case ERROR:
|
|
if (bombed == OK)
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bombed = FATALERR;
|
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break;
|
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case REPRINT:
|
|
(void) fclose(cfp);
|
|
return(REPRINT);
|
|
case FILTERERR:
|
|
case ACCESS:
|
|
bombed = i;
|
|
sendmail(pp, logname, bombed);
|
|
}
|
|
title[0] = '\0';
|
|
continue;
|
|
|
|
case 'N':
|
|
case 'U':
|
|
case 'M':
|
|
case 'R':
|
|
continue;
|
|
}
|
|
|
|
/* pass 2 */
|
|
|
|
pass2:
|
|
fseek(cfp, 0L, 0);
|
|
while (getline(cfp))
|
|
switch (line[0]) {
|
|
case 'L': /* identification line */
|
|
if (!pp->no_header && pp->header_last)
|
|
banner(pp, line+1, jobname);
|
|
continue;
|
|
|
|
case 'M':
|
|
if (bombed < NOACCT) /* already sent if >= NOACCT */
|
|
sendmail(pp, line+1, bombed);
|
|
continue;
|
|
|
|
case 'U':
|
|
if (strchr(line+1, '/'))
|
|
continue;
|
|
(void) unlink(line+1);
|
|
}
|
|
/*
|
|
* clean-up in case another control file exists
|
|
*/
|
|
(void) fclose(cfp);
|
|
(void) unlink(file);
|
|
return(bombed == OK ? OK : ERROR);
|
|
}
|
|
|
|
/*
|
|
* Print a file.
|
|
* Set up the chain [ PR [ | {IF, OF} ] ] or {IF, RF, TF, NF, DF, CF, VF}.
|
|
* Return -1 if a non-recoverable error occured,
|
|
* 2 if the filter detected some errors (but printed the job anyway),
|
|
* 1 if we should try to reprint this job and
|
|
* 0 if all is well.
|
|
* Note: all filters take stdin as the file, stdout as the printer,
|
|
* stderr as the log file, and must not ignore SIGINT.
|
|
*/
|
|
static int
|
|
print(pp, format, file)
|
|
struct printer *pp;
|
|
int format;
|
|
char *file;
|
|
{
|
|
register int n;
|
|
register char *prog;
|
|
int fi, fo;
|
|
FILE *fp;
|
|
char *av[15], buf[BUFSIZ];
|
|
int pid, p[2], stopped = 0;
|
|
union wait status;
|
|
struct stat stb;
|
|
|
|
if (lstat(file, &stb) < 0 || (fi = open(file, O_RDONLY)) < 0)
|
|
return(ERROR);
|
|
/*
|
|
* Check to see if data file is a symbolic link. If so, it should
|
|
* still point to the same file or someone is trying to print
|
|
* something he shouldn't.
|
|
*/
|
|
if ((stb.st_mode & S_IFMT) == S_IFLNK && fstat(fi, &stb) == 0 &&
|
|
(stb.st_dev != fdev || stb.st_ino != fino))
|
|
return(ACCESS);
|
|
if (!pp->no_formfeed && !pp->tof) { /* start on a fresh page */
|
|
(void) write(ofd, pp->form_feed, strlen(pp->form_feed));
|
|
pp->tof = 1;
|
|
}
|
|
if (pp->filters[LPF_INPUT] == NULL
|
|
&& (format == 'f' || format == 'l')) {
|
|
pp->tof = 0;
|
|
while ((n = read(fi, buf, BUFSIZ)) > 0)
|
|
if (write(ofd, buf, n) != n) {
|
|
(void) close(fi);
|
|
return(REPRINT);
|
|
}
|
|
(void) close(fi);
|
|
return(OK);
|
|
}
|
|
switch (format) {
|
|
case 'p': /* print file using 'pr' */
|
|
if (pp->filters[LPF_INPUT] == NULL) { /* use output filter */
|
|
prog = _PATH_PR;
|
|
av[0] = "pr";
|
|
av[1] = width;
|
|
av[2] = length;
|
|
av[3] = "-h";
|
|
av[4] = *title ? title : " ";
|
|
av[5] = "-F";
|
|
av[6] = 0;
|
|
fo = ofd;
|
|
goto start;
|
|
}
|
|
pipe(p);
|
|
if ((prchild = dofork(pp, DORETURN)) == 0) { /* child */
|
|
dup2(fi, 0); /* file is stdin */
|
|
dup2(p[1], 1); /* pipe is stdout */
|
|
closelog();
|
|
closeallfds(3);
|
|
execl(_PATH_PR, "pr", width, length,
|
|
"-h", *title ? title : " ", "-F", 0);
|
|
syslog(LOG_ERR, "cannot execl %s", _PATH_PR);
|
|
exit(2);
|
|
}
|
|
(void) close(p[1]); /* close output side */
|
|
(void) close(fi);
|
|
if (prchild < 0) {
|
|
prchild = 0;
|
|
(void) close(p[0]);
|
|
return(ERROR);
|
|
}
|
|
fi = p[0]; /* use pipe for input */
|
|
case 'f': /* print plain text file */
|
|
prog = pp->filters[LPF_INPUT];
|
|
av[1] = width;
|
|
av[2] = length;
|
|
av[3] = indent;
|
|
n = 4;
|
|
break;
|
|
case 'l': /* like 'f' but pass control characters */
|
|
prog = pp->filters[LPF_INPUT];
|
|
av[1] = "-c";
|
|
av[2] = width;
|
|
av[3] = length;
|
|
av[4] = indent;
|
|
n = 5;
|
|
break;
|
|
case 'r': /* print a fortran text file */
|
|
prog = pp->filters[LPF_FORTRAN];
|
|
av[1] = width;
|
|
av[2] = length;
|
|
n = 3;
|
|
break;
|
|
case 't': /* print troff output */
|
|
case 'n': /* print ditroff output */
|
|
case 'd': /* print tex output */
|
|
(void) unlink(".railmag");
|
|
if ((fo = creat(".railmag", FILMOD)) < 0) {
|
|
syslog(LOG_ERR, "%s: cannot create .railmag",
|
|
pp->printer);
|
|
(void) unlink(".railmag");
|
|
} else {
|
|
for (n = 0; n < 4; n++) {
|
|
if (fonts[n][0] != '/')
|
|
(void) write(fo, _PATH_VFONT,
|
|
sizeof(_PATH_VFONT) - 1);
|
|
(void) write(fo, fonts[n], strlen(fonts[n]));
|
|
(void) write(fo, "\n", 1);
|
|
}
|
|
(void) close(fo);
|
|
}
|
|
prog = (format == 't') ? pp->filters[LPF_TROFF]
|
|
: ((format == 'n') ? pp->filters[LPF_DITROFF]
|
|
: pp->filters[LPF_DVI]);
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'c': /* print cifplot output */
|
|
prog = pp->filters[LPF_CIFPLOT];
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'g': /* print plot(1G) output */
|
|
prog = pp->filters[LPF_GRAPH];
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'v': /* print raster output */
|
|
prog = pp->filters[LPF_RASTER];
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
default:
|
|
(void) close(fi);
|
|
syslog(LOG_ERR, "%s: illegal format character '%c'",
|
|
pp->printer, format);
|
|
return(ERROR);
|
|
}
|
|
if (prog == NULL) {
|
|
(void) close(fi);
|
|
syslog(LOG_ERR,
|
|
"%s: no filter found in printcap for format character '%c'",
|
|
pp->printer, format);
|
|
return(ERROR);
|
|
}
|
|
if ((av[0] = strrchr(prog, '/')) != NULL)
|
|
av[0]++;
|
|
else
|
|
av[0] = prog;
|
|
av[n++] = "-n";
|
|
av[n++] = logname;
|
|
av[n++] = "-h";
|
|
av[n++] = fromhost;
|
|
av[n++] = pp->acct_file;
|
|
av[n] = 0;
|
|
fo = pfd;
|
|
if (ofilter > 0) { /* stop output filter */
|
|
write(ofd, "\031\1", 2);
|
|
while ((pid =
|
|
wait3((int *)&status, WUNTRACED, 0)) > 0 && pid != ofilter)
|
|
;
|
|
if (status.w_stopval != WSTOPPED) {
|
|
(void) close(fi);
|
|
syslog(LOG_WARNING,
|
|
"%s: output filter died "
|
|
"(retcode=%d termsig=%d)",
|
|
pp->printer, status.w_retcode,
|
|
status.w_termsig);
|
|
return(REPRINT);
|
|
}
|
|
stopped++;
|
|
}
|
|
start:
|
|
if ((child = dofork(pp, DORETURN)) == 0) { /* child */
|
|
dup2(fi, 0);
|
|
dup2(fo, 1);
|
|
n = open(tempfile, O_WRONLY|O_CREAT|O_TRUNC, 0664);
|
|
if (n >= 0)
|
|
dup2(n, 2);
|
|
closelog();
|
|
closeallfds(3);
|
|
execv(prog, av);
|
|
syslog(LOG_ERR, "cannot execv %s", prog);
|
|
exit(2);
|
|
}
|
|
(void) close(fi);
|
|
if (child < 0)
|
|
status.w_retcode = 100;
|
|
else
|
|
while ((pid = wait((int *)&status)) > 0 && pid != child)
|
|
;
|
|
child = 0;
|
|
prchild = 0;
|
|
if (stopped) { /* restart output filter */
|
|
if (kill(ofilter, SIGCONT) < 0) {
|
|
syslog(LOG_ERR, "cannot restart output filter");
|
|
exit(1);
|
|
}
|
|
}
|
|
pp->tof = 0;
|
|
|
|
/* Copy filter output to "lf" logfile */
|
|
if ((fp = fopen(tempfile, "r"))) {
|
|
while (fgets(buf, sizeof(buf), fp))
|
|
fputs(buf, stderr);
|
|
fclose(fp);
|
|
}
|
|
|
|
if (!WIFEXITED(status)) {
|
|
syslog(LOG_WARNING, "%s: filter '%c' terminated (termsig=%d)",
|
|
pp->printer, format, status.w_termsig);
|
|
return(ERROR);
|
|
}
|
|
switch (status.w_retcode) {
|
|
case 0:
|
|
pp->tof = 1;
|
|
return(OK);
|
|
case 1:
|
|
return(REPRINT);
|
|
case 2:
|
|
return(ERROR);
|
|
default:
|
|
syslog(LOG_WARNING, "%s: filter '%c' exited (retcode=%d)",
|
|
pp->printer, format, status.w_retcode);
|
|
return(FILTERERR);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Send the daemon control file (cf) and any data files.
|
|
* Return -1 if a non-recoverable error occured, 1 if a recoverable error and
|
|
* 0 if all is well.
|
|
*/
|
|
static int
|
|
sendit(pp, file)
|
|
struct printer *pp;
|
|
char *file;
|
|
{
|
|
register int i, err = OK;
|
|
char *cp, last[BUFSIZ];
|
|
|
|
/*
|
|
* open control file
|
|
*/
|
|
if ((cfp = fopen(file, "r")) == NULL)
|
|
return(OK);
|
|
/*
|
|
* read the control file for work to do
|
|
*
|
|
* file format -- first character in the line is a command
|
|
* rest of the line is the argument.
|
|
* commands of interest are:
|
|
*
|
|
* a-z -- "file name" name of file to print
|
|
* U -- "unlink" name of file to remove
|
|
* (after we print it. (Pass 2 only)).
|
|
*/
|
|
|
|
/*
|
|
* pass 1
|
|
*/
|
|
while (getline(cfp)) {
|
|
again:
|
|
if (line[0] == 'S') {
|
|
cp = line+1;
|
|
i = 0;
|
|
while (*cp >= '0' && *cp <= '9')
|
|
i = i * 10 + (*cp++ - '0');
|
|
fdev = i;
|
|
cp++;
|
|
i = 0;
|
|
while (*cp >= '0' && *cp <= '9')
|
|
i = i * 10 + (*cp++ - '0');
|
|
fino = i;
|
|
} else if (line[0] == 'H') {
|
|
strcpy(fromhost, line+1);
|
|
if (class[0] == '\0')
|
|
strncpy(class, line+1, sizeof(class) - 1);
|
|
} else if (line[0] == 'P') {
|
|
strncpy(logname, line+1, sizeof(logname) - 1);
|
|
if (pp->restricted) { /* restricted */
|
|
if (getpwnam(logname) == NULL) {
|
|
sendmail(pp, line+1, NOACCT);
|
|
err = ERROR;
|
|
break;
|
|
}
|
|
}
|
|
} else if (line[0] == 'I') {
|
|
strncpy(indent+2, line+1, sizeof(indent) - 3);
|
|
} else if (line[0] >= 'a' && line[0] <= 'z') {
|
|
strcpy(last, line);
|
|
while ((i = getline(cfp)) != 0)
|
|
if (strcmp(last, line))
|
|
break;
|
|
switch (sendfile(pp, '\3', last+1, *last)) {
|
|
case OK:
|
|
if (i)
|
|
goto again;
|
|
break;
|
|
case REPRINT:
|
|
(void) fclose(cfp);
|
|
return(REPRINT);
|
|
case ACCESS:
|
|
sendmail(pp, logname, ACCESS);
|
|
case ERROR:
|
|
err = ERROR;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (err == OK && sendfile(pp, '\2', file, '\0') > 0) {
|
|
(void) fclose(cfp);
|
|
return(REPRINT);
|
|
}
|
|
/*
|
|
* pass 2
|
|
*/
|
|
fseek(cfp, 0L, 0);
|
|
while (getline(cfp))
|
|
if (line[0] == 'U' && !strchr(line+1, '/'))
|
|
(void) unlink(line+1);
|
|
/*
|
|
* clean-up in case another control file exists
|
|
*/
|
|
(void) fclose(cfp);
|
|
(void) unlink(file);
|
|
return(err);
|
|
}
|
|
|
|
/*
|
|
* Send a data file to the remote machine and spool it.
|
|
* Return positive if we should try resending.
|
|
*/
|
|
static int
|
|
sendfile(pp, type, file, format)
|
|
struct printer *pp;
|
|
int type;
|
|
char *file;
|
|
char format;
|
|
{
|
|
register int f, i, amt;
|
|
struct stat stb;
|
|
char buf[BUFSIZ];
|
|
int sizerr, resp, closedpr;
|
|
|
|
if (lstat(file, &stb) < 0 || (f = open(file, O_RDONLY)) < 0)
|
|
return(ERROR);
|
|
/*
|
|
* Check to see if data file is a symbolic link. If so, it should
|
|
* still point to the same file or someone is trying to print something
|
|
* he shouldn't.
|
|
*/
|
|
if ((stb.st_mode & S_IFMT) == S_IFLNK && fstat(f, &stb) == 0 &&
|
|
(stb.st_dev != fdev || stb.st_ino != fino))
|
|
return(ACCESS);
|
|
|
|
sizerr = 0;
|
|
closedpr = 0;
|
|
if (type == '\3') {
|
|
if (pp->filters[LPF_INPUT]) {
|
|
/*
|
|
* We're sending something with an ifilter, we have to
|
|
* run the ifilter and store the output as a
|
|
* temporary file (tfile)... the protocol requires us
|
|
* to send the file size
|
|
*/
|
|
char *av[15];
|
|
int n;
|
|
int ifilter;
|
|
union wait status; /* XXX */
|
|
|
|
strcpy(tfile,TFILENAME);
|
|
if ((tfd = mkstemp(tfile)) == -1) {
|
|
syslog(LOG_ERR, "mkstemp: %m");
|
|
return(ERROR);
|
|
}
|
|
if ((av[0] = strrchr(pp->filters[LPF_INPUT], '/')) == NULL)
|
|
av[0] = pp->filters[LPF_INPUT];
|
|
else
|
|
av[0]++;
|
|
if (format == 'l')
|
|
av[n=1] = "-c";
|
|
else
|
|
n = 0;
|
|
av[++n] = width;
|
|
av[++n] = length;
|
|
av[++n] = indent;
|
|
av[++n] = "-n";
|
|
av[++n] = logname;
|
|
av[++n] = "-h";
|
|
av[++n] = fromhost;
|
|
av[++n] = pp->acct_file;
|
|
av[++n] = 0;
|
|
if ((ifilter = dofork(pp, DORETURN)) == 0) { /* child */
|
|
dup2(f, 0);
|
|
dup2(tfd, 1);
|
|
n = open(tempfile, O_WRONLY|O_CREAT|O_TRUNC,
|
|
TEMP_FILE_MODE);
|
|
if (n >= 0)
|
|
dup2(n, 2);
|
|
closelog();
|
|
closeallfds(3);
|
|
execv(pp->filters[LPF_INPUT], av);
|
|
syslog(LOG_ERR, "cannot execv %s",
|
|
pp->filters[LPF_INPUT]);
|
|
exit(2);
|
|
}
|
|
(void) close(f);
|
|
if (ifilter < 0)
|
|
status.w_retcode = 100;
|
|
else
|
|
while ((pid = wait((int *)&status)) > 0 &&
|
|
pid != ifilter)
|
|
;
|
|
switch (status.w_retcode) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
unlink(tfile);
|
|
return(REPRINT);
|
|
case 2:
|
|
unlink(tfile);
|
|
return(ERROR);
|
|
default:
|
|
syslog(LOG_WARNING, "%s: filter '%c' exited"
|
|
" (retcode=%d)",
|
|
pp->printer, format, status.w_retcode);
|
|
unlink(tfile);
|
|
return(FILTERERR);
|
|
}
|
|
if (fstat(tfd, &stb) < 0) /* the size of tfile */
|
|
return(ERROR);
|
|
f = tfd;
|
|
lseek(f,0,SEEK_SET);
|
|
} else if (ofilter) {
|
|
/*
|
|
* We're sending something with an ofilter, we have to
|
|
* store the output as a temporary file (tfile)... the
|
|
* protocol requires us to send the file size
|
|
*/
|
|
int i;
|
|
for (i = 0; i < stb.st_size; i += BUFSIZ) {
|
|
amt = BUFSIZ;
|
|
if (i + amt > stb.st_size)
|
|
amt = stb.st_size - i;
|
|
if (sizerr == 0 && read(f, buf, amt) != amt) {
|
|
sizerr = 1;
|
|
break;
|
|
}
|
|
if (write(ofd, buf, amt) != amt) {
|
|
(void) close(f);
|
|
return(REPRINT);
|
|
}
|
|
}
|
|
close(ofd);
|
|
close(f);
|
|
while ((i = wait(NULL)) > 0 && i != ofilter)
|
|
;
|
|
ofilter = 0;
|
|
if (fstat(tfd, &stb) < 0) { /* the size of tfile */
|
|
openpr(pp);
|
|
return(ERROR);
|
|
}
|
|
f = tfd;
|
|
lseek(f,0,SEEK_SET);
|
|
closedpr = 1;
|
|
}
|
|
}
|
|
|
|
(void) sprintf(buf, "%c%qd %s\n", type, stb.st_size, file);
|
|
amt = strlen(buf);
|
|
for (i = 0; ; i++) {
|
|
if (write(pfd, buf, amt) != amt ||
|
|
(resp = response(pp)) < 0 || resp == '\1') {
|
|
(void) close(f);
|
|
if (tfd != -1 && type == '\3') {
|
|
tfd = -1;
|
|
unlink(tfile);
|
|
if (closedpr)
|
|
openpr(pp);
|
|
}
|
|
return(REPRINT);
|
|
} else if (resp == '\0')
|
|
break;
|
|
if (i == 0)
|
|
pstatus(pp,
|
|
"no space on remote; waiting for queue to drain");
|
|
if (i == 10)
|
|
syslog(LOG_ALERT, "%s: can't send to %s; queue full",
|
|
pp->printer, pp->remote_host);
|
|
sleep(5 * 60);
|
|
}
|
|
if (i)
|
|
pstatus(pp, "sending to %s", pp->remote_host);
|
|
for (i = 0; i < stb.st_size; i += BUFSIZ) {
|
|
amt = BUFSIZ;
|
|
if (i + amt > stb.st_size)
|
|
amt = stb.st_size - i;
|
|
if (sizerr == 0 && read(f, buf, amt) != amt)
|
|
sizerr = 1;
|
|
if (write(pfd, buf, amt) != amt) {
|
|
(void) close(f);
|
|
if (tfd != -1 && type == '\3') {
|
|
tfd = -1;
|
|
unlink(tfile);
|
|
if (closedpr)
|
|
openpr(pp);
|
|
}
|
|
return(REPRINT);
|
|
}
|
|
}
|
|
|
|
(void) close(f);
|
|
if (tfd != -1 && type == '\3') {
|
|
tfd = -1;
|
|
unlink(tfile);
|
|
}
|
|
if (sizerr) {
|
|
syslog(LOG_INFO, "%s: %s: changed size", pp->printer, file);
|
|
/* tell recvjob to ignore this file */
|
|
(void) write(pfd, "\1", 1);
|
|
if (closedpr)
|
|
openpr(pp);
|
|
return(ERROR);
|
|
}
|
|
if (write(pfd, "", 1) != 1 || response(pp)) {
|
|
if (closedpr)
|
|
openpr(pp);
|
|
return(REPRINT);
|
|
}
|
|
if (closedpr)
|
|
openpr(pp);
|
|
return(OK);
|
|
}
|
|
|
|
/*
|
|
* Check to make sure there have been no errors and that both programs
|
|
* are in sync with eachother.
|
|
* Return non-zero if the connection was lost.
|
|
*/
|
|
static char
|
|
response(pp)
|
|
const struct printer *pp;
|
|
{
|
|
char resp;
|
|
|
|
if (read(pfd, &resp, 1) != 1) {
|
|
syslog(LOG_INFO, "%s: lost connection", pp->printer);
|
|
return(-1);
|
|
}
|
|
return(resp);
|
|
}
|
|
|
|
/*
|
|
* Banner printing stuff
|
|
*/
|
|
static void
|
|
banner(pp, name1, name2)
|
|
struct printer *pp;
|
|
char *name1, *name2;
|
|
{
|
|
time_t tvec;
|
|
|
|
time(&tvec);
|
|
if (!pp->no_formfeed && !pp->tof)
|
|
(void) write(ofd, pp->form_feed, strlen(pp->form_feed));
|
|
if (pp->short_banner) { /* short banner only */
|
|
if (class[0]) {
|
|
(void) write(ofd, class, strlen(class));
|
|
(void) write(ofd, ":", 1);
|
|
}
|
|
(void) write(ofd, name1, strlen(name1));
|
|
(void) write(ofd, " Job: ", 7);
|
|
(void) write(ofd, name2, strlen(name2));
|
|
(void) write(ofd, " Date: ", 8);
|
|
(void) write(ofd, ctime(&tvec), 24);
|
|
(void) write(ofd, "\n", 1);
|
|
} else { /* normal banner */
|
|
(void) write(ofd, "\n\n\n", 3);
|
|
scan_out(pp, ofd, name1, '\0');
|
|
(void) write(ofd, "\n\n", 2);
|
|
scan_out(pp, ofd, name2, '\0');
|
|
if (class[0]) {
|
|
(void) write(ofd,"\n\n\n",3);
|
|
scan_out(pp, ofd, class, '\0');
|
|
}
|
|
(void) write(ofd, "\n\n\n\n\t\t\t\t\tJob: ", 15);
|
|
(void) write(ofd, name2, strlen(name2));
|
|
(void) write(ofd, "\n\t\t\t\t\tDate: ", 12);
|
|
(void) write(ofd, ctime(&tvec), 24);
|
|
(void) write(ofd, "\n", 1);
|
|
}
|
|
if (!pp->no_formfeed)
|
|
(void) write(ofd, pp->form_feed, strlen(pp->form_feed));
|
|
pp->tof = 1;
|
|
}
|
|
|
|
static char *
|
|
scnline(key, p, c)
|
|
register int key;
|
|
register char *p;
|
|
int c;
|
|
{
|
|
register int scnwidth;
|
|
|
|
for (scnwidth = WIDTH; --scnwidth;) {
|
|
key <<= 1;
|
|
*p++ = key & 0200 ? c : BACKGND;
|
|
}
|
|
return (p);
|
|
}
|
|
|
|
#define TRC(q) (((q)-' ')&0177)
|
|
|
|
static void
|
|
scan_out(pp, scfd, scsp, dlm)
|
|
struct printer *pp;
|
|
int scfd, dlm;
|
|
char *scsp;
|
|
{
|
|
register char *strp;
|
|
register int nchrs, j;
|
|
char outbuf[LINELEN+1], *sp, c, cc;
|
|
int d, scnhgt;
|
|
|
|
for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) {
|
|
strp = &outbuf[0];
|
|
sp = scsp;
|
|
for (nchrs = 0; ; ) {
|
|
d = dropit(c = TRC(cc = *sp++));
|
|
if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d))
|
|
for (j = WIDTH; --j;)
|
|
*strp++ = BACKGND;
|
|
else
|
|
strp = scnline(scnkey[(int)c][scnhgt-1-d], strp, cc);
|
|
if (*sp == dlm || *sp == '\0' ||
|
|
nchrs++ >= pp->page_width/(WIDTH+1)-1)
|
|
break;
|
|
*strp++ = BACKGND;
|
|
*strp++ = BACKGND;
|
|
}
|
|
while (*--strp == BACKGND && strp >= outbuf)
|
|
;
|
|
strp++;
|
|
*strp++ = '\n';
|
|
(void) write(scfd, outbuf, strp-outbuf);
|
|
}
|
|
}
|
|
|
|
static int
|
|
dropit(c)
|
|
int c;
|
|
{
|
|
switch(c) {
|
|
|
|
case TRC('_'):
|
|
case TRC(';'):
|
|
case TRC(','):
|
|
case TRC('g'):
|
|
case TRC('j'):
|
|
case TRC('p'):
|
|
case TRC('q'):
|
|
case TRC('y'):
|
|
return (DROP);
|
|
|
|
default:
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* sendmail ---
|
|
* tell people about job completion
|
|
*/
|
|
static void
|
|
sendmail(pp, user, bombed)
|
|
struct printer *pp;
|
|
char *user;
|
|
int bombed;
|
|
{
|
|
register int i;
|
|
int p[2], s;
|
|
register char *cp;
|
|
struct stat stb;
|
|
FILE *fp;
|
|
|
|
pipe(p);
|
|
if ((s = dofork(pp, DORETURN)) == 0) { /* child */
|
|
dup2(p[0], 0);
|
|
closelog();
|
|
closeallfds(3);
|
|
if ((cp = strrchr(_PATH_SENDMAIL, '/')) != NULL)
|
|
cp++;
|
|
else
|
|
cp = _PATH_SENDMAIL;
|
|
execl(_PATH_SENDMAIL, cp, "-t", 0);
|
|
_exit(0);
|
|
} else if (s > 0) { /* parent */
|
|
dup2(p[1], 1);
|
|
printf("To: %s@%s\n", user, fromhost);
|
|
printf("Subject: %s printer job \"%s\"\n", pp->printer,
|
|
*jobname ? jobname : "<unknown>");
|
|
printf("Reply-To: root@%s\n\n", host);
|
|
printf("Your printer job ");
|
|
if (*jobname)
|
|
printf("(%s) ", jobname);
|
|
|
|
cp = "XXX compiler confusion"; /* XXX shut GCC up */
|
|
switch (bombed) {
|
|
case OK:
|
|
printf("\ncompleted successfully\n");
|
|
cp = "OK";
|
|
break;
|
|
default:
|
|
case FATALERR:
|
|
printf("\ncould not be printed\n");
|
|
cp = "FATALERR";
|
|
break;
|
|
case NOACCT:
|
|
printf("\ncould not be printed without an account on %s\n", host);
|
|
cp = "NOACCT";
|
|
break;
|
|
case FILTERERR:
|
|
if (stat(tempfile, &stb) < 0 || stb.st_size == 0 ||
|
|
(fp = fopen(tempfile, "r")) == NULL) {
|
|
printf("\nhad some errors and may not have printed\n");
|
|
break;
|
|
}
|
|
printf("\nhad the following errors and may not have printed:\n");
|
|
while ((i = getc(fp)) != EOF)
|
|
putchar(i);
|
|
(void) fclose(fp);
|
|
cp = "FILTERERR";
|
|
break;
|
|
case ACCESS:
|
|
printf("\nwas not printed because it was not linked to the original file\n");
|
|
cp = "ACCESS";
|
|
}
|
|
fflush(stdout);
|
|
(void) close(1);
|
|
} else {
|
|
syslog(LOG_WARNING, "unable to send mail to %s: %m", user);
|
|
return;
|
|
}
|
|
(void) close(p[0]);
|
|
(void) close(p[1]);
|
|
wait(NULL);
|
|
syslog(LOG_INFO, "mail sent to user %s about job %s on printer %s (%s)",
|
|
user, *jobname ? jobname : "<unknown>", pp->printer, cp);
|
|
}
|
|
|
|
/*
|
|
* dofork - fork with retries on failure
|
|
*/
|
|
static int
|
|
dofork(pp, action)
|
|
const struct printer *pp;
|
|
int action;
|
|
{
|
|
register int i, pid;
|
|
|
|
for (i = 0; i < 20; i++) {
|
|
if ((pid = fork()) < 0) {
|
|
sleep((unsigned)(i*i));
|
|
continue;
|
|
}
|
|
/*
|
|
* Child should run as daemon instead of root
|
|
*/
|
|
if (pid == 0)
|
|
setuid(pp->daemon_user);
|
|
return(pid);
|
|
}
|
|
syslog(LOG_ERR, "can't fork");
|
|
|
|
switch (action) {
|
|
case DORETURN:
|
|
return (-1);
|
|
default:
|
|
syslog(LOG_ERR, "bad action (%d) to dofork", action);
|
|
/*FALL THRU*/
|
|
case DOABORT:
|
|
exit(1);
|
|
}
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/*
|
|
* Kill child processes to abort current job.
|
|
*/
|
|
static void
|
|
abortpr(signo)
|
|
int signo;
|
|
{
|
|
(void) unlink(tempfile);
|
|
kill(0, SIGINT);
|
|
if (ofilter > 0)
|
|
kill(ofilter, SIGCONT);
|
|
while (wait(NULL) > 0)
|
|
;
|
|
if (ofilter > 0 && tfd != -1)
|
|
unlink(tfile);
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
init(pp)
|
|
struct printer *pp;
|
|
{
|
|
char *s;
|
|
|
|
sprintf(&width[2], "%ld", pp->page_width);
|
|
sprintf(&length[2], "%ld", pp->page_length);
|
|
sprintf(&pxwidth[2], "%ld", pp->page_pwidth);
|
|
sprintf(&pxlength[2], "%ld", pp->page_plength);
|
|
if ((s = checkremote(pp)) != 0) {
|
|
syslog(LOG_WARNING, "%s", s);
|
|
free(s);
|
|
}
|
|
}
|
|
|
|
void
|
|
startprinting(printer)
|
|
const char *printer;
|
|
{
|
|
struct printer myprinter, *pp = &myprinter;
|
|
int status;
|
|
|
|
init_printer(pp);
|
|
status = getprintcap(printer, pp);
|
|
switch(status) {
|
|
case PCAPERR_OSERR:
|
|
syslog(LOG_ERR, "can't open printer description file: %m");
|
|
exit(1);
|
|
case PCAPERR_NOTFOUND:
|
|
syslog(LOG_ERR, "unknown printer: %s", printer);
|
|
exit(1);
|
|
case PCAPERR_TCLOOP:
|
|
fatal(pp, "potential reference loop detected in printcap file");
|
|
default:
|
|
break;
|
|
}
|
|
printjob(pp);
|
|
}
|
|
|
|
/*
|
|
* Acquire line printer or remote connection.
|
|
*/
|
|
static void
|
|
openpr(pp)
|
|
const struct printer *pp;
|
|
{
|
|
int p[2];
|
|
char *cp;
|
|
|
|
if (pp->remote) {
|
|
openrem(pp);
|
|
} else if (*pp->lp) {
|
|
if ((cp = strchr(pp->lp, '@')) != NULL)
|
|
opennet(pp);
|
|
else
|
|
opentty(pp);
|
|
} else {
|
|
syslog(LOG_ERR, "%s: no line printer device or host name",
|
|
pp->printer);
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Start up an output filter, if needed.
|
|
*/
|
|
if (pp->filters[LPF_OUTPUT] && !pp->filters[LPF_INPUT] && !ofilter) {
|
|
pipe(p);
|
|
if (pp->remote) {
|
|
strcpy(tfile, TFILENAME);
|
|
tfd = mkstemp(tfile);
|
|
}
|
|
if ((ofilter = dofork(pp, DOABORT)) == 0) { /* child */
|
|
dup2(p[0], 0); /* pipe is std in */
|
|
/* tfile/printer is stdout */
|
|
dup2(pp->remote ? tfd : pfd, 1);
|
|
closelog();
|
|
closeallfds(3);
|
|
if ((cp = strrchr(pp->filters[LPF_OUTPUT], '/')) == NULL)
|
|
cp = pp->filters[LPF_OUTPUT];
|
|
else
|
|
cp++;
|
|
execl(pp->filters[LPF_OUTPUT], cp, width, length, 0);
|
|
syslog(LOG_ERR, "%s: %s: %m", pp->printer,
|
|
pp->filters[LPF_OUTPUT]);
|
|
exit(1);
|
|
}
|
|
(void) close(p[0]); /* close input side */
|
|
ofd = p[1]; /* use pipe for output */
|
|
} else {
|
|
ofd = pfd;
|
|
ofilter = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Printer connected directly to the network
|
|
* or to a terminal server on the net
|
|
*/
|
|
static void
|
|
opennet(pp)
|
|
const struct printer *pp;
|
|
{
|
|
register int i;
|
|
int resp;
|
|
u_long port;
|
|
char *ep;
|
|
void (*savealrm)(int);
|
|
|
|
port = strtoul(pp->lp, &ep, 0);
|
|
if (*ep != '@' || port > 65535) {
|
|
syslog(LOG_ERR, "%s: bad port number: %s", pp->printer,
|
|
pp->lp);
|
|
exit(1);
|
|
}
|
|
ep++;
|
|
|
|
for (i = 1; ; i = i < 256 ? i << 1 : i) {
|
|
resp = -1;
|
|
savealrm = signal(SIGALRM, alarmhandler);
|
|
alarm(pp->conn_timeout);
|
|
pfd = getport(pp, ep, port);
|
|
alarm(0);
|
|
(void)signal(SIGALRM, savealrm);
|
|
if (pfd < 0 && errno == ECONNREFUSED)
|
|
resp = 1;
|
|
else if (pfd >= 0) {
|
|
/*
|
|
* need to delay a bit for rs232 lines
|
|
* to stabilize in case printer is
|
|
* connected via a terminal server
|
|
*/
|
|
delay(500);
|
|
break;
|
|
}
|
|
if (i == 1) {
|
|
if (resp < 0)
|
|
pstatus(pp, "waiting for %s to come up",
|
|
pp->lp);
|
|
else
|
|
pstatus(pp,
|
|
"waiting for access to printer on %s",
|
|
pp->lp);
|
|
}
|
|
sleep(i);
|
|
}
|
|
pstatus(pp, "sending to %s port %d", ep, port);
|
|
}
|
|
|
|
/*
|
|
* Printer is connected to an RS232 port on this host
|
|
*/
|
|
static void
|
|
opentty(pp)
|
|
const struct printer *pp;
|
|
{
|
|
register int i;
|
|
|
|
for (i = 1; ; i = i < 32 ? i << 1 : i) {
|
|
pfd = open(pp->lp, pp->rw ? O_RDWR : O_WRONLY);
|
|
if (pfd >= 0) {
|
|
delay(500);
|
|
break;
|
|
}
|
|
if (errno == ENOENT) {
|
|
syslog(LOG_ERR, "%s: %m", pp->lp);
|
|
exit(1);
|
|
}
|
|
if (i == 1)
|
|
pstatus(pp,
|
|
"waiting for %s to become ready (offline?)",
|
|
pp->printer);
|
|
sleep(i);
|
|
}
|
|
if (isatty(pfd))
|
|
setty(pp);
|
|
pstatus(pp, "%s is ready and printing", pp->printer);
|
|
}
|
|
|
|
/*
|
|
* Printer is on a remote host
|
|
*/
|
|
static void
|
|
openrem(pp)
|
|
const struct printer *pp;
|
|
{
|
|
register int i;
|
|
int resp;
|
|
void (*savealrm)(int);
|
|
|
|
for (i = 1; ; i = i < 256 ? i << 1 : i) {
|
|
resp = -1;
|
|
savealrm = signal(SIGALRM, alarmhandler);
|
|
alarm(pp->conn_timeout);
|
|
pfd = getport(pp, pp->remote_host, 0);
|
|
alarm(0);
|
|
(void)signal(SIGALRM, savealrm);
|
|
if (pfd >= 0) {
|
|
if ((writel(pfd, "\2", pp->remote_queue, "\n",
|
|
(char *)0)
|
|
== 2 + strlen(pp->remote_queue))
|
|
&& (resp = response(pp)) == 0)
|
|
break;
|
|
(void) close(pfd);
|
|
}
|
|
if (i == 1) {
|
|
if (resp < 0)
|
|
pstatus(pp, "waiting for %s to come up",
|
|
pp->remote_host);
|
|
else {
|
|
pstatus(pp,
|
|
"waiting for queue to be enabled on %s",
|
|
pp->remote_host);
|
|
i = 256;
|
|
}
|
|
}
|
|
sleep(i);
|
|
}
|
|
pstatus(pp, "sending to %s", pp->remote_host);
|
|
}
|
|
|
|
/*
|
|
* setup tty lines.
|
|
*/
|
|
static void
|
|
setty(pp)
|
|
const struct printer *pp;
|
|
{
|
|
struct termios ttybuf;
|
|
|
|
if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCEXCL): %m", pp->printer);
|
|
exit(1);
|
|
}
|
|
if (tcgetattr(pfd, &ttybuf) < 0) {
|
|
syslog(LOG_ERR, "%s: tcgetattr: %m", pp->printer);
|
|
exit(1);
|
|
}
|
|
if (pp->baud_rate > 0)
|
|
cfsetspeed(&ttybuf, pp->baud_rate);
|
|
if (pp->mode_set) {
|
|
char *s = strdup(pp->mode_set), *tmp;
|
|
|
|
while ((tmp = strsep(&s, ",")) != NULL) {
|
|
(void) msearch(tmp, &ttybuf);
|
|
}
|
|
}
|
|
if (pp->mode_set != 0 || pp->baud_rate > 0) {
|
|
if (tcsetattr(pfd, TCSAFLUSH, &ttybuf) == -1) {
|
|
syslog(LOG_ERR, "%s: tcsetattr: %m", pp->printer);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef __STDC__
|
|
#include <stdarg.h>
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
|
|
static void
|
|
#ifdef __STDC__
|
|
pstatus(const struct printer *pp, const char *msg, ...)
|
|
#else
|
|
pstatus(pp, msg, va_alist)
|
|
const struct printer *pp;
|
|
char *msg;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
int fd;
|
|
char *buf;
|
|
va_list ap;
|
|
#ifdef __STDC__
|
|
va_start(ap, msg);
|
|
#else
|
|
va_start(ap);
|
|
#endif
|
|
|
|
umask(0);
|
|
fd = open(pp->status_file, O_WRONLY|O_CREAT|O_EXLOCK, STAT_FILE_MODE);
|
|
if (fd < 0) {
|
|
syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->status_file);
|
|
exit(1);
|
|
}
|
|
ftruncate(fd, 0);
|
|
vasprintf(&buf, msg, ap);
|
|
va_end(ap);
|
|
writel(fd, buf, "\n", (char *)0);
|
|
close(fd);
|
|
free(buf);
|
|
}
|
|
|
|
void
|
|
alarmhandler(signo)
|
|
{
|
|
/* ignored */
|
|
}
|