1398 lines
32 KiB
C
1398 lines
32 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 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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static char sccsid[] = "@(#)printjob.c 8.2 (Berkeley) 4/16/94";
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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 <sgtty.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 "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 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 int remote; /* true if sending files to remote */
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static char title[80]; /* ``pr'' title */
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static int tof; /* true if at top of form */
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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 output */
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static char width[10] = "-w"; /* page width in static characters */
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static void abortpr __P((int));
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static void banner __P((char *, char *));
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static int dofork __P((int));
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static int dropit __P((int));
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static void init __P((void));
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static void openpr __P((void));
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static int print __P((int, char *));
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static int printit __P((char *));
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static void pstatus __P((const char *, ...));
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static char response __P((void));
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static void scan_out __P((int, char *, int));
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static char *scnline __P((int, char *, int));
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static int sendfile __P((int, char *));
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static int sendit __P((char *));
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static void sendmail __P((char *, int));
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static void setty __P((void));
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void
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printjob()
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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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long pidoff;
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int count = 0;
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init(); /* 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(LF, O_WRONLY|O_APPEND, 0664) < 0) {
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syslog(LOG_ERR, "%s: %m", LF);
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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(SD) < 0) {
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syslog(LOG_ERR, "%s: %m", SD);
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exit(1);
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}
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if (stat(LO, &stb) == 0 && (stb.st_mode & 0100))
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exit(0); /* printing disabled */
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lfd = open(LO, O_WRONLY|O_CREAT, 0644);
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if (lfd < 0) {
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syslog(LOG_ERR, "%s: %s: %m", printer, LO);
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exit(1);
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}
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if (flock(lfd, LOCK_EX|LOCK_NB) < 0) {
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if (errno == EWOULDBLOCK) /* active deamon present */
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exit(0);
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syslog(LOG_ERR, "%s: %s: %m", printer, LO);
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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", printer, LO);
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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(&queue)) < 0) {
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syslog(LOG_ERR, "%s: can't scan %s", printer, SD);
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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 & 01) { /* reset queue flag */
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if (fchmod(lfd, stb.st_mode & 0776) < 0)
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syslog(LOG_ERR, "%s: %s: %m", printer, LO);
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}
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openpr(); /* 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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restart:
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(void) lseek(lfd, (off_t)pidoff, 0);
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(void) sprintf(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", printer, LO);
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if (!remote)
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i = printit(q->q_name);
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else
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i = sendit(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 & 0100)
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goto done;
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/* rebuild queue (after lpc topq) */
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if (stb.st_mode & 01) {
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for (free((char *) q); nitems--; free((char *) q))
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q = *qp++;
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if (fchmod(lfd, stb.st_mode & 0776) < 0)
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syslog(LOG_WARNING, "%s: %s: %m",
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printer, LO);
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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) { /* try reprinting the job */
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syslog(LOG_INFO, "restarting %s", 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(0)) > 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", printer, LO);
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openpr(); /* try to reopen printer */
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goto restart;
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}
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}
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free((char *) 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(&queue)) < 0) {
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syslog(LOG_ERR, "%s: can't scan %s", printer, SD);
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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 (!SF && !tof)
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(void) write(ofd, FF, strlen(FF));
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if (TR != NULL) /* output trailer */
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(void) write(ofd, TR, strlen(TR));
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}
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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(file)
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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", 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], "%d", PW);
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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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* 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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strcpy(fromhost, line+1);
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if (class[0] == '\0')
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strncpy(class, line+1, sizeof(class)-1);
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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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if (RS) { /* restricted */
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if (getpwnam(logname) == NULL) {
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bombed = NOACCT;
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sendmail(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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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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else
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strcpy(jobname, " ");
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continue;
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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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continue;
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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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continue;
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case 'L': /* identification line */
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if (!SH && !HL)
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banner(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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strcpy(fonts[line[0]-'1'], line+1);
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continue;
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|
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case 'W': /* page width */
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strncpy(width+2, line+1, sizeof(width)-3);
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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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continue;
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default: /* some file to print */
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switch (i = print(line[0], line+1)) {
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case ERROR:
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if (bombed == OK)
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bombed = FATALERR;
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break;
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case REPRINT:
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(void) fclose(cfp);
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return(REPRINT);
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case FILTERERR:
|
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case ACCESS:
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bombed = i;
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sendmail(logname, bombed);
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}
|
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title[0] = '\0';
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continue;
|
|
|
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case 'N':
|
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case 'U':
|
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case 'M':
|
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continue;
|
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}
|
|
|
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/* pass 2 */
|
|
|
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pass2:
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fseek(cfp, 0L, 0);
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while (getline(cfp))
|
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switch (line[0]) {
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case 'L': /* identification line */
|
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if (!SH && HL)
|
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banner(line+1, jobname);
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continue;
|
|
|
|
case 'M':
|
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if (bombed < NOACCT) /* already sent if >= NOACCT */
|
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sendmail(line+1, bombed);
|
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continue;
|
|
|
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case 'U':
|
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(void) unlink(line+1);
|
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}
|
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/*
|
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* 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(format, file)
|
|
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 (!SF && !tof) { /* start on a fresh page */
|
|
(void) write(ofd, FF, strlen(FF));
|
|
tof = 1;
|
|
}
|
|
if (IF == NULL && (format == 'f' || format == 'l')) {
|
|
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 (IF == 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(DORETURN)) == 0) { /* child */
|
|
dup2(fi, 0); /* file is stdin */
|
|
dup2(p[1], 1); /* pipe is stdout */
|
|
closelog();
|
|
for (n = 3; n < NOFILE; n++)
|
|
(void) close(n);
|
|
execl(_PATH_PR, "pr", width, length,
|
|
"-h", *title ? title : " ", "-F", 0);
|
|
openlog("lpd", LOG_PID, LOG_LPR);
|
|
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 = IF;
|
|
av[1] = width;
|
|
av[2] = length;
|
|
av[3] = indent;
|
|
n = 4;
|
|
break;
|
|
case 'l': /* like 'f' but pass control characters */
|
|
prog = IF;
|
|
av[1] = "-c";
|
|
av[2] = width;
|
|
av[3] = length;
|
|
av[4] = indent;
|
|
n = 5;
|
|
break;
|
|
case 'r': /* print a fortran text file */
|
|
prog = RF;
|
|
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", 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') ? TF : (format == 'n') ? NF : DF;
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'c': /* print cifplot output */
|
|
prog = CF;
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'g': /* print plot(1G) output */
|
|
prog = GF;
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
case 'v': /* print raster output */
|
|
prog = VF;
|
|
av[1] = pxwidth;
|
|
av[2] = pxlength;
|
|
n = 3;
|
|
break;
|
|
default:
|
|
(void) close(fi);
|
|
syslog(LOG_ERR, "%s: illegal format character '%c'",
|
|
printer, format);
|
|
return(ERROR);
|
|
}
|
|
if ((av[0] = rindex(prog, '/')) != NULL)
|
|
av[0]++;
|
|
else
|
|
av[0] = prog;
|
|
av[n++] = "-n";
|
|
av[n++] = logname;
|
|
av[n++] = "-h";
|
|
av[n++] = fromhost;
|
|
av[n++] = AF;
|
|
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 (%d)",
|
|
printer, status.w_retcode);
|
|
return(REPRINT);
|
|
}
|
|
stopped++;
|
|
}
|
|
start:
|
|
if ((child = dofork(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();
|
|
for (n = 3; n < NOFILE; n++)
|
|
(void) close(n);
|
|
execv(prog, av);
|
|
openlog("lpd", LOG_PID, LOG_LPR);
|
|
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);
|
|
}
|
|
}
|
|
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: Daemon filter '%c' terminated (%d)",
|
|
printer, format, status.w_termsig);
|
|
return(ERROR);
|
|
}
|
|
switch (status.w_retcode) {
|
|
case 0:
|
|
tof = 1;
|
|
return(OK);
|
|
case 1:
|
|
return(REPRINT);
|
|
default:
|
|
syslog(LOG_WARNING, "%s: Daemon filter '%c' exited (%d)",
|
|
printer, format, status.w_retcode);
|
|
case 2:
|
|
return(ERROR);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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(file)
|
|
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;
|
|
continue;
|
|
}
|
|
if (line[0] >= 'a' && line[0] <= 'z') {
|
|
strcpy(last, line);
|
|
while (i = getline(cfp))
|
|
if (strcmp(last, line))
|
|
break;
|
|
switch (sendfile('\3', last+1)) {
|
|
case OK:
|
|
if (i)
|
|
goto again;
|
|
break;
|
|
case REPRINT:
|
|
(void) fclose(cfp);
|
|
return(REPRINT);
|
|
case ACCESS:
|
|
sendmail(logname, ACCESS);
|
|
case ERROR:
|
|
err = ERROR;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (err == OK && sendfile('\2', file) > 0) {
|
|
(void) fclose(cfp);
|
|
return(REPRINT);
|
|
}
|
|
/*
|
|
* pass 2
|
|
*/
|
|
fseek(cfp, 0L, 0);
|
|
while (getline(cfp))
|
|
if (line[0] == 'U')
|
|
(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(type, file)
|
|
int type;
|
|
char *file;
|
|
{
|
|
register int f, i, amt;
|
|
struct stat stb;
|
|
char buf[BUFSIZ];
|
|
int sizerr, resp;
|
|
|
|
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);
|
|
(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()) < 0 || resp == '\1') {
|
|
(void) close(f);
|
|
return(REPRINT);
|
|
} else if (resp == '\0')
|
|
break;
|
|
if (i == 0)
|
|
pstatus("no space on remote; waiting for queue to drain");
|
|
if (i == 10)
|
|
syslog(LOG_ALERT, "%s: can't send to %s; queue full",
|
|
printer, RM);
|
|
sleep(5 * 60);
|
|
}
|
|
if (i)
|
|
pstatus("sending to %s", RM);
|
|
sizerr = 0;
|
|
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);
|
|
return(REPRINT);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
(void) close(f);
|
|
if (sizerr) {
|
|
syslog(LOG_INFO, "%s: %s: changed size", printer, file);
|
|
/* tell recvjob to ignore this file */
|
|
(void) write(pfd, "\1", 1);
|
|
return(ERROR);
|
|
}
|
|
if (write(pfd, "", 1) != 1 || response())
|
|
return(REPRINT);
|
|
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()
|
|
{
|
|
char resp;
|
|
|
|
if (read(pfd, &resp, 1) != 1) {
|
|
syslog(LOG_INFO, "%s: lost connection", printer);
|
|
return(-1);
|
|
}
|
|
return(resp);
|
|
}
|
|
|
|
/*
|
|
* Banner printing stuff
|
|
*/
|
|
static void
|
|
banner(name1, name2)
|
|
char *name1, *name2;
|
|
{
|
|
time_t tvec;
|
|
extern char *ctime();
|
|
|
|
time(&tvec);
|
|
if (!SF && !tof)
|
|
(void) write(ofd, FF, strlen(FF));
|
|
if (SB) { /* 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(ofd, name1, '\0');
|
|
(void) write(ofd, "\n\n", 2);
|
|
scan_out(ofd, name2, '\0');
|
|
if (class[0]) {
|
|
(void) write(ofd,"\n\n\n",3);
|
|
scan_out(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 (!SF)
|
|
(void) write(ofd, FF, strlen(FF));
|
|
tof = 1;
|
|
}
|
|
|
|
static char *
|
|
scnline(key, p, c)
|
|
register int key;
|
|
register char *p;
|
|
int c;
|
|
{
|
|
register scnwidth;
|
|
|
|
for (scnwidth = WIDTH; --scnwidth;) {
|
|
key <<= 1;
|
|
*p++ = key & 0200 ? c : BACKGND;
|
|
}
|
|
return (p);
|
|
}
|
|
|
|
#define TRC(q) (((q)-' ')&0177)
|
|
|
|
static void
|
|
scan_out(scfd, scsp, dlm)
|
|
int scfd, dlm;
|
|
char *scsp;
|
|
{
|
|
register char *strp;
|
|
register nchrs, j;
|
|
char outbuf[LINELEN+1], *sp, c, cc;
|
|
int d, scnhgt;
|
|
extern char scnkey[][HEIGHT]; /* in lpdchar.c */
|
|
|
|
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[c][scnhgt-1-d], strp, cc);
|
|
if (*sp == dlm || *sp == '\0' || nchrs++ >= PW/(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(user, bombed)
|
|
char *user;
|
|
int bombed;
|
|
{
|
|
register int i;
|
|
int p[2], s;
|
|
register char *cp;
|
|
char buf[100];
|
|
struct stat stb;
|
|
FILE *fp;
|
|
|
|
pipe(p);
|
|
if ((s = dofork(DORETURN)) == 0) { /* child */
|
|
dup2(p[0], 0);
|
|
closelog();
|
|
for (i = 3; i < NOFILE; i++)
|
|
(void) close(i);
|
|
if ((cp = rindex(_PATH_SENDMAIL, '/')) != NULL)
|
|
cp++;
|
|
else
|
|
cp = _PATH_SENDMAIL;
|
|
sprintf(buf, "%s@%s", user, fromhost);
|
|
execl(_PATH_SENDMAIL, cp, buf, 0);
|
|
openlog("lpd", LOG_PID, LOG_LPR);
|
|
syslog(LOG_ERR, "cannot execl %s", _PATH_SENDMAIL);
|
|
exit(0);
|
|
} else if (s > 0) { /* parent */
|
|
dup2(p[1], 1);
|
|
printf("To: %s@%s\n", user, fromhost);
|
|
printf("Subject: printer job\n\n");
|
|
printf("Your printer job ");
|
|
if (*jobname)
|
|
printf("(%s) ", jobname);
|
|
switch (bombed) {
|
|
case OK:
|
|
printf("\ncompleted successfully\n");
|
|
break;
|
|
default:
|
|
case FATALERR:
|
|
printf("\ncould not be printed\n");
|
|
break;
|
|
case NOACCT:
|
|
printf("\ncould not be printed without an account on %s\n", host);
|
|
break;
|
|
case FILTERERR:
|
|
if (stat(tempfile, &stb) < 0 || stb.st_size == 0 ||
|
|
(fp = fopen(tempfile, "r")) == NULL) {
|
|
printf("\nwas printed but had some errors\n");
|
|
break;
|
|
}
|
|
printf("\nwas printed but had the following errors:\n");
|
|
while ((i = getc(fp)) != EOF)
|
|
putchar(i);
|
|
(void) fclose(fp);
|
|
break;
|
|
case ACCESS:
|
|
printf("\nwas not printed because it was not linked to the original file\n");
|
|
}
|
|
fflush(stdout);
|
|
(void) close(1);
|
|
}
|
|
(void) close(p[0]);
|
|
(void) close(p[1]);
|
|
wait(&s);
|
|
}
|
|
|
|
/*
|
|
* dofork - fork with retries on failure
|
|
*/
|
|
static int
|
|
dofork(action)
|
|
int action;
|
|
{
|
|
register int i, pid;
|
|
struct passwd *pwd;
|
|
|
|
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) {
|
|
if ((pwd = getpwuid(DU)) == NULL) {
|
|
syslog(LOG_ERR, "Can't lookup default uid in password file");
|
|
break;
|
|
}
|
|
initgroups(pwd->pw_name, pwd->pw_gid);
|
|
setgid(pwd->pw_gid);
|
|
setuid(DU);
|
|
}
|
|
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)
|
|
;
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
init()
|
|
{
|
|
int status;
|
|
char *s;
|
|
|
|
if ((status = cgetent(&bp, printcapdb, printer)) == -2) {
|
|
syslog(LOG_ERR, "can't open printer description file");
|
|
exit(1);
|
|
} else if (status == -1) {
|
|
syslog(LOG_ERR, "unknown printer: %s", printer);
|
|
exit(1);
|
|
} else if (status == -3)
|
|
fatal("potential reference loop detected in printcap file");
|
|
|
|
if (cgetstr(bp, "lp", &LP) == -1)
|
|
LP = _PATH_DEFDEVLP;
|
|
if (cgetstr(bp, "rp", &RP) == -1)
|
|
RP = DEFLP;
|
|
if (cgetstr(bp, "lo", &LO) == -1)
|
|
LO = DEFLOCK;
|
|
if (cgetstr(bp, "st", &ST) == -1)
|
|
ST = DEFSTAT;
|
|
if (cgetstr(bp, "lf", &LF) == -1)
|
|
LF = _PATH_CONSOLE;
|
|
if (cgetstr(bp, "sd", &SD) == -1)
|
|
SD = _PATH_DEFSPOOL;
|
|
if (cgetnum(bp, "du", &DU) < 0)
|
|
DU = DEFUID;
|
|
if (cgetstr(bp,"ff", &FF) == -1)
|
|
FF = DEFFF;
|
|
if (cgetnum(bp, "pw", &PW) < 0)
|
|
PW = DEFWIDTH;
|
|
sprintf(&width[2], "%d", PW);
|
|
if (cgetnum(bp, "pl", &PL) < 0)
|
|
PL = DEFLENGTH;
|
|
sprintf(&length[2], "%d", PL);
|
|
if (cgetnum(bp,"px", &PX) < 0)
|
|
PX = 0;
|
|
sprintf(&pxwidth[2], "%d", PX);
|
|
if (cgetnum(bp, "py", &PY) < 0)
|
|
PY = 0;
|
|
sprintf(&pxlength[2], "%d", PY);
|
|
cgetstr(bp, "rm", &RM);
|
|
if (s = checkremote())
|
|
syslog(LOG_WARNING, s);
|
|
|
|
cgetstr(bp, "af", &AF);
|
|
cgetstr(bp, "of", &OF);
|
|
cgetstr(bp, "if", &IF);
|
|
cgetstr(bp, "rf", &RF);
|
|
cgetstr(bp, "tf", &TF);
|
|
cgetstr(bp, "nf", &NF);
|
|
cgetstr(bp, "df", &DF);
|
|
cgetstr(bp, "gf", &GF);
|
|
cgetstr(bp, "vf", &VF);
|
|
cgetstr(bp, "cf", &CF);
|
|
cgetstr(bp, "tr", &TR);
|
|
|
|
RS = (cgetcap(bp, "rs", ':') != NULL);
|
|
SF = (cgetcap(bp, "sf", ':') != NULL);
|
|
SH = (cgetcap(bp, "sh", ':') != NULL);
|
|
SB = (cgetcap(bp, "sb", ':') != NULL);
|
|
HL = (cgetcap(bp, "hl", ':') != NULL);
|
|
RW = (cgetcap(bp, "rw", ':') != NULL);
|
|
|
|
cgetnum(bp, "br", &BR);
|
|
if (cgetnum(bp, "fc", &FC) < 0)
|
|
FC = 0;
|
|
if (cgetnum(bp, "fs", &FS) < 0)
|
|
FS = 0;
|
|
if (cgetnum(bp, "xc", &XC) < 0)
|
|
XC = 0;
|
|
if (cgetnum(bp, "xs", &XS) < 0)
|
|
XS = 0;
|
|
|
|
tof = (cgetcap(bp, "fo", ':') == NULL);
|
|
}
|
|
|
|
/*
|
|
* Acquire line printer or remote connection.
|
|
*/
|
|
static void
|
|
openpr()
|
|
{
|
|
register int i, n;
|
|
int resp;
|
|
|
|
if (!sendtorem && *LP) {
|
|
for (i = 1; ; i = i < 32 ? i << 1 : i) {
|
|
pfd = open(LP, RW ? O_RDWR : O_WRONLY);
|
|
if (pfd >= 0)
|
|
break;
|
|
if (errno == ENOENT) {
|
|
syslog(LOG_ERR, "%s: %m", LP);
|
|
exit(1);
|
|
}
|
|
if (i == 1)
|
|
pstatus("waiting for %s to become ready (offline ?)", printer);
|
|
sleep(i);
|
|
}
|
|
if (isatty(pfd))
|
|
setty();
|
|
pstatus("%s is ready and printing", printer);
|
|
} else if (RM != NULL) {
|
|
for (i = 1; ; i = i < 256 ? i << 1 : i) {
|
|
resp = -1;
|
|
pfd = getport(RM);
|
|
if (pfd >= 0) {
|
|
(void) sprintf(line, "\2%s\n", RP);
|
|
n = strlen(line);
|
|
if (write(pfd, line, n) == n &&
|
|
(resp = response()) == '\0')
|
|
break;
|
|
(void) close(pfd);
|
|
}
|
|
if (i == 1) {
|
|
if (resp < 0)
|
|
pstatus("waiting for %s to come up", RM);
|
|
else {
|
|
pstatus("waiting for queue to be enabled on %s", RM);
|
|
i = 256;
|
|
}
|
|
}
|
|
sleep(i);
|
|
}
|
|
pstatus("sending to %s", RM);
|
|
remote = 1;
|
|
} else {
|
|
syslog(LOG_ERR, "%s: no line printer device or host name",
|
|
printer);
|
|
exit(1);
|
|
}
|
|
/*
|
|
* Start up an output filter, if needed.
|
|
*/
|
|
if (!remote && OF) {
|
|
int p[2];
|
|
char *cp;
|
|
|
|
pipe(p);
|
|
if ((ofilter = dofork(DOABORT)) == 0) { /* child */
|
|
dup2(p[0], 0); /* pipe is std in */
|
|
dup2(pfd, 1); /* printer is std out */
|
|
closelog();
|
|
for (i = 3; i < NOFILE; i++)
|
|
(void) close(i);
|
|
if ((cp = rindex(OF, '/')) == NULL)
|
|
cp = OF;
|
|
else
|
|
cp++;
|
|
execl(OF, cp, width, length, 0);
|
|
openlog("lpd", LOG_PID, LOG_LPR);
|
|
syslog(LOG_ERR, "%s: %s: %m", printer, OF);
|
|
exit(1);
|
|
}
|
|
(void) close(p[0]); /* close input side */
|
|
ofd = p[1]; /* use pipe for output */
|
|
} else {
|
|
ofd = pfd;
|
|
ofilter = 0;
|
|
}
|
|
}
|
|
|
|
struct bauds {
|
|
int baud;
|
|
int speed;
|
|
} bauds[] = {
|
|
50, B50,
|
|
75, B75,
|
|
110, B110,
|
|
134, B134,
|
|
150, B150,
|
|
200, B200,
|
|
300, B300,
|
|
600, B600,
|
|
1200, B1200,
|
|
1800, B1800,
|
|
2400, B2400,
|
|
4800, B4800,
|
|
9600, B9600,
|
|
19200, EXTA,
|
|
38400, EXTB,
|
|
57600, B57600,
|
|
115200, B115200,
|
|
0, 0
|
|
};
|
|
|
|
/*
|
|
* setup tty lines.
|
|
*/
|
|
static void
|
|
setty()
|
|
{
|
|
struct sgttyb ttybuf;
|
|
register struct bauds *bp;
|
|
|
|
if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCEXCL): %m", printer);
|
|
exit(1);
|
|
}
|
|
if (ioctl(pfd, TIOCGETP, (char *)&ttybuf) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCGETP): %m", printer);
|
|
exit(1);
|
|
}
|
|
if (BR > 0) {
|
|
for (bp = bauds; bp->baud; bp++)
|
|
if (BR == bp->baud)
|
|
break;
|
|
if (!bp->baud) {
|
|
syslog(LOG_ERR, "%s: illegal baud rate %d", printer, BR);
|
|
exit(1);
|
|
}
|
|
ttybuf.sg_ispeed = ttybuf.sg_ospeed = bp->speed;
|
|
}
|
|
ttybuf.sg_flags &= ~FC;
|
|
ttybuf.sg_flags |= FS;
|
|
if (ioctl(pfd, TIOCSETP, (char *)&ttybuf) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCSETP): %m", printer);
|
|
exit(1);
|
|
}
|
|
if (XC) {
|
|
if (ioctl(pfd, TIOCLBIC, &XC) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCLBIC): %m", printer);
|
|
exit(1);
|
|
}
|
|
}
|
|
if (XS) {
|
|
if (ioctl(pfd, TIOCLBIS, &XS) < 0) {
|
|
syslog(LOG_ERR, "%s: ioctl(TIOCLBIS): %m", printer);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if __STDC__
|
|
#include <stdarg.h>
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
|
|
void
|
|
#if __STDC__
|
|
pstatus(const char *msg, ...)
|
|
#else
|
|
pstatus(msg, va_alist)
|
|
char *msg;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
register int fd;
|
|
char buf[BUFSIZ];
|
|
va_list ap;
|
|
#if __STDC__
|
|
va_start(ap, msg);
|
|
#else
|
|
va_start(ap);
|
|
#endif
|
|
|
|
umask(0);
|
|
fd = open(ST, O_WRONLY|O_CREAT, 0664);
|
|
if (fd < 0 || flock(fd, LOCK_EX) < 0) {
|
|
syslog(LOG_ERR, "%s: %s: %m", printer, ST);
|
|
exit(1);
|
|
}
|
|
ftruncate(fd, 0);
|
|
(void)vsnprintf(buf, sizeof(buf), msg, ap);
|
|
va_end(ap);
|
|
strcat(buf, "\n");
|
|
(void) write(fd, buf, strlen(buf));
|
|
(void) close(fd);
|
|
}
|