printjob.c revision 97781
11553Srgrimes/* 21553Srgrimes * Copyright (c) 1983, 1993 31553Srgrimes * The Regents of the University of California. All rights reserved. 41553Srgrimes * 51553Srgrimes * 61553Srgrimes * Redistribution and use in source and binary forms, with or without 71553Srgrimes * modification, are permitted provided that the following conditions 81553Srgrimes * are met: 91553Srgrimes * 1. Redistributions of source code must retain the above copyright 101553Srgrimes * notice, this list of conditions and the following disclaimer. 111553Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 121553Srgrimes * notice, this list of conditions and the following disclaimer in the 131553Srgrimes * documentation and/or other materials provided with the distribution. 141553Srgrimes * 3. All advertising materials mentioning features or use of this software 151553Srgrimes * must display the following acknowledgement: 161553Srgrimes * This product includes software developed by the University of 171553Srgrimes * California, Berkeley and its contributors. 181553Srgrimes * 4. Neither the name of the University nor the names of its contributors 191553Srgrimes * may be used to endorse or promote products derived from this software 201553Srgrimes * without specific prior written permission. 211553Srgrimes * 221553Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 231553Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 241553Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 251553Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 261553Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271553Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 281553Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 291553Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 301553Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 311553Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 321553Srgrimes * SUCH DAMAGE. 331553Srgrimes */ 341553Srgrimes 351553Srgrimes#ifndef lint 3631492Swollmanstatic const char copyright[] = 371553Srgrimes"@(#) Copyright (c) 1983, 1993\n\ 381553Srgrimes The Regents of the University of California. All rights reserved.\n"; 391553Srgrimes#endif /* not lint */ 401553Srgrimes 411553Srgrimes#ifndef lint 4231492Swollman/* 4315648Sjoergstatic char sccsid[] = "@(#)printjob.c 8.7 (Berkeley) 5/10/95"; 4431492Swollman*/ 4531492Swollmanstatic const char rcsid[] = 4650479Speter "$FreeBSD: head/usr.sbin/lpr/lpd/printjob.c 97781 2002-06-03 20:47:01Z gad $"; 471553Srgrimes#endif /* not lint */ 481553Srgrimes 491553Srgrimes 501553Srgrimes/* 511553Srgrimes * printjob -- print jobs in the queue. 521553Srgrimes * 531553Srgrimes * NOTE: the lock file is used to pass information to lpq and lprm. 541553Srgrimes * it does not need to be removed because file locks are dynamic. 551553Srgrimes */ 561553Srgrimes 571553Srgrimes#include <sys/param.h> 581553Srgrimes#include <sys/wait.h> 591553Srgrimes#include <sys/stat.h> 601553Srgrimes#include <sys/types.h> 611553Srgrimes 621553Srgrimes#include <pwd.h> 631553Srgrimes#include <unistd.h> 641553Srgrimes#include <signal.h> 651553Srgrimes#include <syslog.h> 661553Srgrimes#include <fcntl.h> 671553Srgrimes#include <dirent.h> 681553Srgrimes#include <errno.h> 691553Srgrimes#include <stdio.h> 701553Srgrimes#include <string.h> 711553Srgrimes#include <stdlib.h> 7215032Ssef#include <sys/ioctl.h> 7315032Ssef#include <termios.h> 7415703Sjoerg#include <time.h> 751553Srgrimes#include "lp.h" 761553Srgrimes#include "lp.local.h" 771553Srgrimes#include "pathnames.h" 781553Srgrimes#include "extern.h" 791553Srgrimes 8080230Sgad#define DORETURN 0 /* dofork should return "can't fork" error */ 8180230Sgad#define DOABORT 1 /* dofork should just die if fork() fails */ 821553Srgrimes 831553Srgrimes/* 841553Srgrimes * Error tokens 851553Srgrimes */ 861553Srgrimes#define REPRINT -2 871553Srgrimes#define ERROR -1 881553Srgrimes#define OK 0 891553Srgrimes#define FATALERR 1 901553Srgrimes#define NOACCT 2 911553Srgrimes#define FILTERERR 3 921553Srgrimes#define ACCESS 4 931553Srgrimes 941553Srgrimesstatic dev_t fdev; /* device of file pointed to by symlink */ 951553Srgrimesstatic ino_t fino; /* inode of file pointed to by symlink */ 961553Srgrimesstatic FILE *cfp; /* control file */ 971553Srgrimesstatic int child; /* id of any filters */ 9868253Sgadstatic int job_dfcnt; /* count of datafiles in current user job */ 991553Srgrimesstatic int lfd; /* lock file descriptor */ 1001553Srgrimesstatic int ofd; /* output filter file descriptor */ 1011553Srgrimesstatic int ofilter; /* id of output filter, if any */ 10224831Sbrianstatic int tfd = -1; /* output filter temp file output */ 1031553Srgrimesstatic int pfd; /* prstatic inter file descriptor */ 1041553Srgrimesstatic int pid; /* pid of lpd process */ 1051553Srgrimesstatic int prchild; /* id of pr process */ 1061553Srgrimesstatic char title[80]; /* ``pr'' title */ 10753956Sachestatic char locale[80]; /* ``pr'' locale */ 1081553Srgrimes 10980230Sgad/* these two are set from pp->daemon_user, but only if they are needed */ 11080230Sgadstatic char *daemon_uname; /* set from pwd->pw_name */ 11180230Sgadstatic int daemon_defgid; 11280230Sgad 1131553Srgrimesstatic char class[32]; /* classification field */ 11478300Sgadstatic char origin_host[MAXHOSTNAMELEN]; /* user's host machine */ 1151553Srgrimes /* indentation size in static characters */ 1168857Srgrimesstatic char indent[10] = "-i0"; 1171553Srgrimesstatic char jobname[100]; /* job or file name */ 1181553Srgrimesstatic char length[10] = "-l"; /* page length in lines */ 1191553Srgrimesstatic char logname[32]; /* user's login name */ 1201553Srgrimesstatic char pxlength[10] = "-y"; /* page length in pixels */ 1211553Srgrimesstatic char pxwidth[10] = "-x"; /* page width in pixels */ 12268664Sgad/* tempstderr is the filename used to catch stderr from exec-ing filters */ 12368664Sgadstatic char tempstderr[] = "errs.XXXXXXX"; 1241553Srgrimesstatic char width[10] = "-w"; /* page width in static characters */ 12524831Sbrian#define TFILENAME "fltXXXXXX" 12624831Sbrianstatic char tfile[] = TFILENAME; /* file name for filter output */ 1271553Srgrimes 12878146Sgadstatic void abortpr(int _signo); 12978146Sgadstatic void alarmhandler(int _signo); 13078146Sgadstatic void banner(struct printer *_pp, char *_name1, char *_name2); 13178146Sgadstatic int dofork(const struct printer *_pp, int _action); 13278146Sgadstatic int dropit(int _c); 13394032Sgadstatic int execfilter(struct printer *_pp, char *_f_cmd, char **_f_av, 13494032Sgad int _infd, int _outfd); 13578146Sgadstatic void init(struct printer *_pp); 13678146Sgadstatic void openpr(const struct printer *_pp); 13778146Sgadstatic void opennet(const struct printer *_pp); 13878146Sgadstatic void opentty(const struct printer *_pp); 13978146Sgadstatic void openrem(const struct printer *pp); 14078146Sgadstatic int print(struct printer *_pp, int _format, char *_file); 14178146Sgadstatic int printit(struct printer *_pp, char *_file); 14279739Sgadstatic void pstatus(const struct printer *_pp, const char *_msg, ...) 14379739Sgad __printflike(2, 3); 14478146Sgadstatic char response(const struct printer *_pp); 14578146Sgadstatic void scan_out(struct printer *_pp, int _scfd, char *_scsp, 14678146Sgad int _dlm); 14778146Sgadstatic char *scnline(int _key, char *_p, int _c); 14878146Sgadstatic int sendfile(struct printer *_pp, int _type, char *_file, 14995293Sgad char _format, int _copyreq); 15078146Sgadstatic int sendit(struct printer *_pp, char *_file); 15194038Sgadstatic void sendmail(struct printer *_pp, char *_userid, int _bombed); 15278146Sgadstatic void setty(const struct printer *_pp); 1531553Srgrimes 1541553Srgrimesvoid 15578146Sgadprintjob(struct printer *pp) 1561553Srgrimes{ 1571553Srgrimes struct stat stb; 15868401Sgad register struct jobqueue *q, **qp; 15968401Sgad struct jobqueue **queue; 1601553Srgrimes register int i, nitems; 16168733Sgad off_t pidoff; 16268733Sgad int errcnt, jobcount, tempfd; 1631553Srgrimes 16468733Sgad jobcount = 0; 16531492Swollman init(pp); /* set up capabilities */ 16631492Swollman (void) write(1, "", 1); /* ack that daemon is started */ 1671553Srgrimes (void) close(2); /* set up log file */ 16831492Swollman if (open(pp->log_file, O_WRONLY|O_APPEND, LOG_FILE_MODE) < 0) { 16931492Swollman syslog(LOG_ERR, "%s: %m", pp->log_file); 1701553Srgrimes (void) open(_PATH_DEVNULL, O_WRONLY); 1711553Srgrimes } 1721553Srgrimes setgid(getegid()); 1731553Srgrimes pid = getpid(); /* for use with lprm */ 1741553Srgrimes setpgrp(0, pid); 17579735Sgad 17679735Sgad /* 17779735Sgad * At initial lpd startup, printjob may be called with various 17879735Sgad * signal handlers in effect. After that initial startup, any 17979735Sgad * calls to printjob will have a *different* set of signal-handlers 18079735Sgad * in effect. Make sure all handlers are the ones we want. 18179735Sgad */ 18279735Sgad signal(SIGCHLD, SIG_DFL); 1831553Srgrimes signal(SIGHUP, abortpr); 1841553Srgrimes signal(SIGINT, abortpr); 1851553Srgrimes signal(SIGQUIT, abortpr); 1861553Srgrimes signal(SIGTERM, abortpr); 1871553Srgrimes 1881553Srgrimes /* 1891553Srgrimes * uses short form file names 1901553Srgrimes */ 19131492Swollman if (chdir(pp->spool_dir) < 0) { 19231492Swollman syslog(LOG_ERR, "%s: %m", pp->spool_dir); 1931553Srgrimes exit(1); 1941553Srgrimes } 19531492Swollman if (stat(pp->lock_file, &stb) == 0 && (stb.st_mode & LFM_PRINT_DIS)) 1961553Srgrimes exit(0); /* printing disabled */ 19731492Swollman lfd = open(pp->lock_file, O_WRONLY|O_CREAT|O_EXLOCK|O_NONBLOCK, 19831492Swollman LOCK_FILE_MODE); 1991553Srgrimes if (lfd < 0) { 20031492Swollman if (errno == EWOULDBLOCK) /* active daemon present */ 20131492Swollman exit(0); 20231492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file); 2031553Srgrimes exit(1); 2041553Srgrimes } 20531492Swollman /* turn off non-blocking mode (was turned on for lock effects only) */ 20631492Swollman if (fcntl(lfd, F_SETFL, 0) < 0) { 20731492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file); 2081553Srgrimes exit(1); 2091553Srgrimes } 2101553Srgrimes ftruncate(lfd, 0); 2111553Srgrimes /* 2121553Srgrimes * write process id for others to know 2131553Srgrimes */ 2141553Srgrimes sprintf(line, "%u\n", pid); 2151553Srgrimes pidoff = i = strlen(line); 2161553Srgrimes if (write(lfd, line, i) != i) { 21731492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->lock_file); 2181553Srgrimes exit(1); 2191553Srgrimes } 2201553Srgrimes /* 2211553Srgrimes * search the spool directory for work and sort by queue order. 2221553Srgrimes */ 22331492Swollman if ((nitems = getq(pp, &queue)) < 0) { 22431492Swollman syslog(LOG_ERR, "%s: can't scan %s", pp->printer, 22531492Swollman pp->spool_dir); 2261553Srgrimes exit(1); 2271553Srgrimes } 2281553Srgrimes if (nitems == 0) /* no work to do */ 2291553Srgrimes exit(0); 23031492Swollman if (stb.st_mode & LFM_RESET_QUE) { /* reset queue flag */ 23131492Swollman if (fchmod(lfd, stb.st_mode & ~LFM_RESET_QUE) < 0) 23231492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, 23331492Swollman pp->lock_file); 2341553Srgrimes } 23568664Sgad 23668664Sgad /* create a file which will be used to hold stderr from filters */ 23768664Sgad if ((tempfd = mkstemp(tempstderr)) == -1) { 23868664Sgad syslog(LOG_ERR, "%s: mkstemp(%s): %m", pp->printer, 23968664Sgad tempstderr); 24068732Sgad exit(1); 24168664Sgad } 24268664Sgad if ((i = fchmod(tempfd, 0664)) == -1) { 24368664Sgad syslog(LOG_ERR, "%s: fchmod(%s): %m", pp->printer, 24468664Sgad tempstderr); 24568732Sgad exit(1); 24668664Sgad } 24768664Sgad /* lpd doesn't need it to be open, it just needs it to exist */ 24868664Sgad close(tempfd); 24968664Sgad 25031492Swollman openpr(pp); /* open printer or remote */ 2511553Srgrimesagain: 2521553Srgrimes /* 2531553Srgrimes * we found something to do now do it -- 2541553Srgrimes * write the name of the current control file into the lock file 2551553Srgrimes * so the spool queue program can tell what we're working on 2561553Srgrimes */ 2571553Srgrimes for (qp = queue; nitems--; free((char *) q)) { 2581553Srgrimes q = *qp++; 25968401Sgad if (stat(q->job_cfname, &stb) < 0) 2601553Srgrimes continue; 26115648Sjoerg errcnt = 0; 2621553Srgrimes restart: 26315648Sjoerg (void) lseek(lfd, pidoff, 0); 26468401Sgad (void) snprintf(line, sizeof(line), "%s\n", q->job_cfname); 2651553Srgrimes i = strlen(line); 2661553Srgrimes if (write(lfd, line, i) != i) 26731492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, 26831492Swollman pp->lock_file); 26931492Swollman if (!pp->remote) 27068401Sgad i = printit(pp, q->job_cfname); 2711553Srgrimes else 27268401Sgad i = sendit(pp, q->job_cfname); 2731553Srgrimes /* 2741553Srgrimes * Check to see if we are supposed to stop printing or 2751553Srgrimes * if we are to rebuild the queue. 2761553Srgrimes */ 2771553Srgrimes if (fstat(lfd, &stb) == 0) { 2781553Srgrimes /* stop printing before starting next job? */ 27931492Swollman if (stb.st_mode & LFM_PRINT_DIS) 2801553Srgrimes goto done; 2811553Srgrimes /* rebuild queue (after lpc topq) */ 28231492Swollman if (stb.st_mode & LFM_RESET_QUE) { 28331492Swollman for (free(q); nitems--; free(q)) 2841553Srgrimes q = *qp++; 28531492Swollman if (fchmod(lfd, stb.st_mode & ~LFM_RESET_QUE) 28631492Swollman < 0) 2871553Srgrimes syslog(LOG_WARNING, "%s: %s: %m", 28831492Swollman pp->printer, pp->lock_file); 2891553Srgrimes break; 2901553Srgrimes } 2911553Srgrimes } 29268733Sgad if (i == OK) /* all files of this job printed */ 29368733Sgad jobcount++; 29415648Sjoerg else if (i == REPRINT && ++errcnt < 5) { 29515648Sjoerg /* try reprinting the job */ 29631492Swollman syslog(LOG_INFO, "restarting %s", pp->printer); 2971553Srgrimes if (ofilter > 0) { 2981553Srgrimes kill(ofilter, SIGCONT); /* to be sure */ 2991553Srgrimes (void) close(ofd); 30015648Sjoerg while ((i = wait(NULL)) > 0 && i != ofilter) 3011553Srgrimes ; 30279735Sgad if (i < 0) 30379735Sgad syslog(LOG_WARNING, "%s: after kill(of=%d), wait() returned: %m", 30479735Sgad pp->printer, ofilter); 3051553Srgrimes ofilter = 0; 3061553Srgrimes } 3071553Srgrimes (void) close(pfd); /* close printer */ 3081553Srgrimes if (ftruncate(lfd, pidoff) < 0) 30931492Swollman syslog(LOG_WARNING, "%s: %s: %m", 31031492Swollman pp->printer, pp->lock_file); 31131492Swollman openpr(pp); /* try to reopen printer */ 3121553Srgrimes goto restart; 31315648Sjoerg } else { 31431492Swollman syslog(LOG_WARNING, "%s: job could not be %s (%s)", 31531492Swollman pp->printer, 31631492Swollman pp->remote ? "sent to remote host" : "printed", 31768401Sgad q->job_cfname); 31815648Sjoerg if (i == REPRINT) { 31927748Simp /* ensure we don't attempt this job again */ 32068401Sgad (void) unlink(q->job_cfname); 32168401Sgad q->job_cfname[0] = 'd'; 32268401Sgad (void) unlink(q->job_cfname); 32315648Sjoerg if (logname[0]) 32431492Swollman sendmail(pp, logname, FATALERR); 32515648Sjoerg } 3261553Srgrimes } 3271553Srgrimes } 32831492Swollman free(queue); 3291553Srgrimes /* 3301553Srgrimes * search the spool directory for more work. 3311553Srgrimes */ 33231492Swollman if ((nitems = getq(pp, &queue)) < 0) { 33331492Swollman syslog(LOG_ERR, "%s: can't scan %s", pp->printer, 33431492Swollman pp->spool_dir); 3351553Srgrimes exit(1); 3361553Srgrimes } 3371553Srgrimes if (nitems == 0) { /* no more work to do */ 3381553Srgrimes done: 33968733Sgad if (jobcount > 0) { /* jobs actually printed */ 34031492Swollman if (!pp->no_formfeed && !pp->tof) 34131492Swollman (void) write(ofd, pp->form_feed, 34231492Swollman strlen(pp->form_feed)); 34331492Swollman if (pp->trailer != NULL) /* output trailer */ 34431492Swollman (void) write(ofd, pp->trailer, 34531492Swollman strlen(pp->trailer)); 3461553Srgrimes } 34719202Simp (void) close(ofd); 34819202Simp (void) wait(NULL); 34968664Sgad (void) unlink(tempstderr); 3501553Srgrimes exit(0); 3511553Srgrimes } 3521553Srgrimes goto again; 3531553Srgrimes} 3541553Srgrimes 3551553Srgrimeschar fonts[4][50]; /* fonts for troff */ 3561553Srgrimes 3571553Srgrimeschar ifonts[4][40] = { 3581553Srgrimes _PATH_VFONTR, 3591553Srgrimes _PATH_VFONTI, 3601553Srgrimes _PATH_VFONTB, 3611553Srgrimes _PATH_VFONTS, 3621553Srgrimes}; 3631553Srgrimes 3641553Srgrimes/* 3651553Srgrimes * The remaining part is the reading of the control file (cf) 3661553Srgrimes * and performing the various actions. 3671553Srgrimes */ 3681553Srgrimesstatic int 36978146Sgadprintit(struct printer *pp, char *file) 3701553Srgrimes{ 3711553Srgrimes register int i; 37268734Sgad char *cp; 37368734Sgad int bombed, didignorehdr; 3741553Srgrimes 37568734Sgad bombed = OK; 37668734Sgad didignorehdr = 0; 3771553Srgrimes /* 3781553Srgrimes * open control file; ignore if no longer there. 3791553Srgrimes */ 3801553Srgrimes if ((cfp = fopen(file, "r")) == NULL) { 38131492Swollman syslog(LOG_INFO, "%s: %s: %m", pp->printer, file); 3821553Srgrimes return(OK); 3831553Srgrimes } 3841553Srgrimes /* 3851553Srgrimes * Reset troff fonts. 3861553Srgrimes */ 3871553Srgrimes for (i = 0; i < 4; i++) 3881553Srgrimes strcpy(fonts[i], ifonts[i]); 38931492Swollman sprintf(&width[2], "%ld", pp->page_width); 3901553Srgrimes strcpy(indent+2, "0"); 3911553Srgrimes 39268253Sgad /* initialize job-specific count of datafiles processed */ 39368253Sgad job_dfcnt = 0; 39468253Sgad 3951553Srgrimes /* 3961553Srgrimes * read the control file for work to do 3971553Srgrimes * 3981553Srgrimes * file format -- first character in the line is a command 3991553Srgrimes * rest of the line is the argument. 4001553Srgrimes * valid commands are: 4011553Srgrimes * 4021553Srgrimes * S -- "stat info" for symbolic link protection 4031553Srgrimes * J -- "job name" on banner page 4041553Srgrimes * C -- "class name" on banner page 4051553Srgrimes * L -- "literal" user's name to print on banner 4061553Srgrimes * T -- "title" for pr 4071553Srgrimes * H -- "host name" of machine where lpr was done 4081553Srgrimes * P -- "person" user's login name 4091553Srgrimes * I -- "indent" amount to indent output 41015648Sjoerg * R -- laser dpi "resolution" 4111553Srgrimes * f -- "file name" name of text file to print 4121553Srgrimes * l -- "file name" text file with control chars 41383684Sgad * o -- "file name" postscript file, according to 41483684Sgad * the RFC. Here it is treated like an 'f'. 4151553Srgrimes * p -- "file name" text file to print with pr(1) 4161553Srgrimes * t -- "file name" troff(1) file to print 4171553Srgrimes * n -- "file name" ditroff(1) file to print 4181553Srgrimes * d -- "file name" dvi file to print 4191553Srgrimes * g -- "file name" plot(1G) file to print 4201553Srgrimes * v -- "file name" plain raster file to print 4211553Srgrimes * c -- "file name" cifplot file to print 4221553Srgrimes * 1 -- "R font file" for troff 4231553Srgrimes * 2 -- "I font file" for troff 4241553Srgrimes * 3 -- "B font file" for troff 4251553Srgrimes * 4 -- "S font file" for troff 4261553Srgrimes * N -- "name" of file (used by lpq) 4271553Srgrimes * U -- "unlink" name of file to remove 4281553Srgrimes * (after we print it. (Pass 2 only)). 4291553Srgrimes * M -- "mail" to user when done printing 43053956Sache * Z -- "locale" for pr 4311553Srgrimes * 4321553Srgrimes * getline reads a line and expands tabs to blanks 4331553Srgrimes */ 4341553Srgrimes 4351553Srgrimes /* pass 1 */ 4361553Srgrimes 4371553Srgrimes while (getline(cfp)) 4381553Srgrimes switch (line[0]) { 4391553Srgrimes case 'H': 44078300Sgad strlcpy(origin_host, line + 1, sizeof(origin_host)); 44127748Simp if (class[0] == '\0') { 44280133Sgad strlcpy(class, line+1, sizeof(class)); 44327748Simp } 4441553Srgrimes continue; 4451553Srgrimes 4461553Srgrimes case 'P': 44780133Sgad strlcpy(logname, line + 1, sizeof(logname)); 44831492Swollman if (pp->restricted) { /* restricted */ 4491553Srgrimes if (getpwnam(logname) == NULL) { 4501553Srgrimes bombed = NOACCT; 45131492Swollman sendmail(pp, line+1, bombed); 4521553Srgrimes goto pass2; 4531553Srgrimes } 4541553Srgrimes } 4551553Srgrimes continue; 4561553Srgrimes 4571553Srgrimes case 'S': 4581553Srgrimes cp = line+1; 4591553Srgrimes i = 0; 4601553Srgrimes while (*cp >= '0' && *cp <= '9') 4611553Srgrimes i = i * 10 + (*cp++ - '0'); 4621553Srgrimes fdev = i; 4631553Srgrimes cp++; 4641553Srgrimes i = 0; 4651553Srgrimes while (*cp >= '0' && *cp <= '9') 4661553Srgrimes i = i * 10 + (*cp++ - '0'); 4671553Srgrimes fino = i; 4681553Srgrimes continue; 4691553Srgrimes 4701553Srgrimes case 'J': 47127748Simp if (line[1] != '\0') { 47280133Sgad strlcpy(jobname, line + 1, sizeof(jobname)); 47327748Simp } else 4741553Srgrimes strcpy(jobname, " "); 4751553Srgrimes continue; 4761553Srgrimes 4771553Srgrimes case 'C': 4781553Srgrimes if (line[1] != '\0') 47980133Sgad strlcpy(class, line + 1, sizeof(class)); 48080133Sgad else if (class[0] == '\0') { 48180133Sgad /* XXX - why call gethostname instead of 48280133Sgad * just strlcpy'ing local_host? */ 4831553Srgrimes gethostname(class, sizeof(class)); 48480133Sgad class[sizeof(class) - 1] = '\0'; 48580133Sgad } 4861553Srgrimes continue; 4871553Srgrimes 4881553Srgrimes case 'T': /* header title for pr */ 48980133Sgad strlcpy(title, line + 1, sizeof(title)); 4901553Srgrimes continue; 4911553Srgrimes 4921553Srgrimes case 'L': /* identification line */ 49331492Swollman if (!pp->no_header && !pp->header_last) 49431492Swollman banner(pp, line+1, jobname); 4951553Srgrimes continue; 4961553Srgrimes 4971553Srgrimes case '1': /* troff fonts */ 4981553Srgrimes case '2': 4991553Srgrimes case '3': 5001553Srgrimes case '4': 50127748Simp if (line[1] != '\0') { 50280133Sgad strlcpy(fonts[line[0]-'1'], line + 1, 50380133Sgad (size_t)50); 50427748Simp } 5051553Srgrimes continue; 5061553Srgrimes 5071553Srgrimes case 'W': /* page width */ 50880133Sgad strlcpy(width+2, line + 1, sizeof(width) - 2); 5091553Srgrimes continue; 5101553Srgrimes 5111553Srgrimes case 'I': /* indent amount */ 51280133Sgad strlcpy(indent+2, line + 1, sizeof(indent) - 2); 5131553Srgrimes continue; 5141553Srgrimes 51553956Sache case 'Z': /* locale for pr */ 51680133Sgad strlcpy(locale, line + 1, sizeof(locale)); 51753956Sache continue; 51853956Sache 5191553Srgrimes default: /* some file to print */ 52068467Sgad /* only lowercase cmd-codes include a file-to-print */ 52168467Sgad if ((line[0] < 'a') || (line[0] > 'z')) { 52268467Sgad /* ignore any other lines */ 52368467Sgad if (lflag <= 1) 52468467Sgad continue; 52568467Sgad if (!didignorehdr) { 52668467Sgad syslog(LOG_INFO, "%s: in %s :", 52768467Sgad pp->printer, file); 52868467Sgad didignorehdr = 1; 52968467Sgad } 53068467Sgad syslog(LOG_INFO, "%s: ignoring line: '%c' %s", 53168467Sgad pp->printer, line[0], &line[1]); 53268467Sgad continue; 53368467Sgad } 53468467Sgad i = print(pp, line[0], line+1); 53568467Sgad switch (i) { 5361553Srgrimes case ERROR: 5371553Srgrimes if (bombed == OK) 5381553Srgrimes bombed = FATALERR; 5391553Srgrimes break; 5401553Srgrimes case REPRINT: 5411553Srgrimes (void) fclose(cfp); 5421553Srgrimes return(REPRINT); 5431553Srgrimes case FILTERERR: 5441553Srgrimes case ACCESS: 5451553Srgrimes bombed = i; 54631492Swollman sendmail(pp, logname, bombed); 5471553Srgrimes } 5481553Srgrimes title[0] = '\0'; 5491553Srgrimes continue; 5501553Srgrimes 5511553Srgrimes case 'N': 5521553Srgrimes case 'U': 5531553Srgrimes case 'M': 55415648Sjoerg case 'R': 5551553Srgrimes continue; 5561553Srgrimes } 5571553Srgrimes 5581553Srgrimes /* pass 2 */ 5591553Srgrimes 5601553Srgrimespass2: 5611553Srgrimes fseek(cfp, 0L, 0); 5621553Srgrimes while (getline(cfp)) 5631553Srgrimes switch (line[0]) { 5641553Srgrimes case 'L': /* identification line */ 56531492Swollman if (!pp->no_header && pp->header_last) 56631492Swollman banner(pp, line+1, jobname); 5671553Srgrimes continue; 5681553Srgrimes 5691553Srgrimes case 'M': 5701553Srgrimes if (bombed < NOACCT) /* already sent if >= NOACCT */ 57131492Swollman sendmail(pp, line+1, bombed); 5721553Srgrimes continue; 5731553Srgrimes 5741553Srgrimes case 'U': 57527748Simp if (strchr(line+1, '/')) 57627748Simp continue; 5771553Srgrimes (void) unlink(line+1); 5781553Srgrimes } 5791553Srgrimes /* 5801553Srgrimes * clean-up in case another control file exists 5811553Srgrimes */ 5821553Srgrimes (void) fclose(cfp); 5831553Srgrimes (void) unlink(file); 5841553Srgrimes return(bombed == OK ? OK : ERROR); 5851553Srgrimes} 5861553Srgrimes 5871553Srgrimes/* 5881553Srgrimes * Print a file. 5891553Srgrimes * Set up the chain [ PR [ | {IF, OF} ] ] or {IF, RF, TF, NF, DF, CF, VF}. 5901553Srgrimes * Return -1 if a non-recoverable error occured, 5911553Srgrimes * 2 if the filter detected some errors (but printed the job anyway), 5921553Srgrimes * 1 if we should try to reprint this job and 5931553Srgrimes * 0 if all is well. 5941553Srgrimes * Note: all filters take stdin as the file, stdout as the printer, 5951553Srgrimes * stderr as the log file, and must not ignore SIGINT. 5961553Srgrimes */ 5971553Srgrimesstatic int 59878146Sgadprint(struct printer *pp, int format, char *file) 5991553Srgrimes{ 60053956Sache register int n, i; 6011553Srgrimes register char *prog; 60231492Swollman int fi, fo; 6031553Srgrimes FILE *fp; 6041553Srgrimes char *av[15], buf[BUFSIZ]; 60597781Sgad int pid, p[2], retcode, stopped, wstatus; 6061553Srgrimes struct stat stb; 6071553Srgrimes 60868467Sgad if (lstat(file, &stb) < 0 || (fi = open(file, O_RDONLY)) < 0) { 60968467Sgad syslog(LOG_INFO, "%s: unable to open %s ('%c' line)", 61068467Sgad pp->printer, file, format); 6111553Srgrimes return(ERROR); 61268467Sgad } 6131553Srgrimes /* 6141553Srgrimes * Check to see if data file is a symbolic link. If so, it should 6151553Srgrimes * still point to the same file or someone is trying to print 6161553Srgrimes * something he shouldn't. 6171553Srgrimes */ 6181553Srgrimes if ((stb.st_mode & S_IFMT) == S_IFLNK && fstat(fi, &stb) == 0 && 6191553Srgrimes (stb.st_dev != fdev || stb.st_ino != fino)) 6201553Srgrimes return(ACCESS); 62168253Sgad 62268253Sgad job_dfcnt++; /* increment datafile counter for this job */ 62368734Sgad stopped = 0; /* output filter is not stopped */ 62468253Sgad 62568253Sgad /* everything seems OK, start it up */ 62631492Swollman if (!pp->no_formfeed && !pp->tof) { /* start on a fresh page */ 62731492Swollman (void) write(ofd, pp->form_feed, strlen(pp->form_feed)); 62831492Swollman pp->tof = 1; 6291553Srgrimes } 63031492Swollman if (pp->filters[LPF_INPUT] == NULL 63183684Sgad && (format == 'f' || format == 'l' || format == 'o')) { 63231492Swollman pp->tof = 0; 6331553Srgrimes while ((n = read(fi, buf, BUFSIZ)) > 0) 6341553Srgrimes if (write(ofd, buf, n) != n) { 6351553Srgrimes (void) close(fi); 6361553Srgrimes return(REPRINT); 6371553Srgrimes } 6381553Srgrimes (void) close(fi); 6391553Srgrimes return(OK); 6401553Srgrimes } 6411553Srgrimes switch (format) { 6421553Srgrimes case 'p': /* print file using 'pr' */ 64331492Swollman if (pp->filters[LPF_INPUT] == NULL) { /* use output filter */ 6441553Srgrimes prog = _PATH_PR; 64553956Sache i = 0; 64653956Sache av[i++] = "pr"; 64753956Sache av[i++] = width; 64853956Sache av[i++] = length; 64953956Sache av[i++] = "-h"; 65053956Sache av[i++] = *title ? title : " "; 65153956Sache av[i++] = "-L"; 65253956Sache av[i++] = *locale ? locale : "C"; 65353956Sache av[i++] = "-F"; 65453956Sache av[i] = 0; 6551553Srgrimes fo = ofd; 6561553Srgrimes goto start; 6571553Srgrimes } 6581553Srgrimes pipe(p); 65931492Swollman if ((prchild = dofork(pp, DORETURN)) == 0) { /* child */ 6601553Srgrimes dup2(fi, 0); /* file is stdin */ 6611553Srgrimes dup2(p[1], 1); /* pipe is stdout */ 6628094Sjkh closelog(); 66331492Swollman closeallfds(3); 6641553Srgrimes execl(_PATH_PR, "pr", width, length, 66553956Sache "-h", *title ? title : " ", 66653956Sache "-L", *locale ? locale : "C", 66779452Sbrian "-F", (char *)0); 6681553Srgrimes syslog(LOG_ERR, "cannot execl %s", _PATH_PR); 6691553Srgrimes exit(2); 6701553Srgrimes } 6711553Srgrimes (void) close(p[1]); /* close output side */ 6721553Srgrimes (void) close(fi); 6731553Srgrimes if (prchild < 0) { 6741553Srgrimes prchild = 0; 6751553Srgrimes (void) close(p[0]); 6761553Srgrimes return(ERROR); 6771553Srgrimes } 6781553Srgrimes fi = p[0]; /* use pipe for input */ 6791553Srgrimes case 'f': /* print plain text file */ 68031492Swollman prog = pp->filters[LPF_INPUT]; 6811553Srgrimes av[1] = width; 6821553Srgrimes av[2] = length; 6831553Srgrimes av[3] = indent; 6841553Srgrimes n = 4; 6851553Srgrimes break; 68686935Sgad case 'o': /* print postscript file */ 68786935Sgad /* 68886935Sgad * Treat this as a "plain file with control characters", and 68986935Sgad * assume the standard LPF_INPUT filter will recognize that 69086935Sgad * the data is postscript and know what to do with it. These 69186935Sgad * 'o'-file requests could come from MacOS 10.1 systems. 69286935Sgad * (later versions of MacOS 10 will explicitly use 'l') 69386935Sgad * A postscript file can contain binary data, which is why 'l' 69486935Sgad * is somewhat more appropriate than 'f'. 69586935Sgad */ 69686935Sgad /* FALLTHROUGH */ 6971553Srgrimes case 'l': /* like 'f' but pass control characters */ 69831492Swollman prog = pp->filters[LPF_INPUT]; 6991553Srgrimes av[1] = "-c"; 7001553Srgrimes av[2] = width; 7011553Srgrimes av[3] = length; 7021553Srgrimes av[4] = indent; 7031553Srgrimes n = 5; 7041553Srgrimes break; 7051553Srgrimes case 'r': /* print a fortran text file */ 70631492Swollman prog = pp->filters[LPF_FORTRAN]; 7071553Srgrimes av[1] = width; 7081553Srgrimes av[2] = length; 7091553Srgrimes n = 3; 7101553Srgrimes break; 7111553Srgrimes case 't': /* print troff output */ 7121553Srgrimes case 'n': /* print ditroff output */ 7131553Srgrimes case 'd': /* print tex output */ 7141553Srgrimes (void) unlink(".railmag"); 7151553Srgrimes if ((fo = creat(".railmag", FILMOD)) < 0) { 71631492Swollman syslog(LOG_ERR, "%s: cannot create .railmag", 71731492Swollman pp->printer); 7181553Srgrimes (void) unlink(".railmag"); 7191553Srgrimes } else { 7201553Srgrimes for (n = 0; n < 4; n++) { 7211553Srgrimes if (fonts[n][0] != '/') 7221553Srgrimes (void) write(fo, _PATH_VFONT, 7231553Srgrimes sizeof(_PATH_VFONT) - 1); 7241553Srgrimes (void) write(fo, fonts[n], strlen(fonts[n])); 7251553Srgrimes (void) write(fo, "\n", 1); 7261553Srgrimes } 7271553Srgrimes (void) close(fo); 7281553Srgrimes } 72931492Swollman prog = (format == 't') ? pp->filters[LPF_TROFF] 73031492Swollman : ((format == 'n') ? pp->filters[LPF_DITROFF] 73131492Swollman : pp->filters[LPF_DVI]); 7321553Srgrimes av[1] = pxwidth; 7331553Srgrimes av[2] = pxlength; 7341553Srgrimes n = 3; 7351553Srgrimes break; 7361553Srgrimes case 'c': /* print cifplot output */ 73731492Swollman prog = pp->filters[LPF_CIFPLOT]; 7381553Srgrimes av[1] = pxwidth; 7391553Srgrimes av[2] = pxlength; 7401553Srgrimes n = 3; 7411553Srgrimes break; 7421553Srgrimes case 'g': /* print plot(1G) output */ 74331492Swollman prog = pp->filters[LPF_GRAPH]; 7441553Srgrimes av[1] = pxwidth; 7451553Srgrimes av[2] = pxlength; 7461553Srgrimes n = 3; 7471553Srgrimes break; 7481553Srgrimes case 'v': /* print raster output */ 74931492Swollman prog = pp->filters[LPF_RASTER]; 7501553Srgrimes av[1] = pxwidth; 7511553Srgrimes av[2] = pxlength; 7521553Srgrimes n = 3; 7531553Srgrimes break; 7541553Srgrimes default: 7551553Srgrimes (void) close(fi); 7561553Srgrimes syslog(LOG_ERR, "%s: illegal format character '%c'", 75731492Swollman pp->printer, format); 7581553Srgrimes return(ERROR); 7591553Srgrimes } 76015648Sjoerg if (prog == NULL) { 76115648Sjoerg (void) close(fi); 76215648Sjoerg syslog(LOG_ERR, 76315648Sjoerg "%s: no filter found in printcap for format character '%c'", 76431492Swollman pp->printer, format); 76515648Sjoerg return(ERROR); 76615648Sjoerg } 76727635Simp if ((av[0] = strrchr(prog, '/')) != NULL) 7681553Srgrimes av[0]++; 7691553Srgrimes else 7701553Srgrimes av[0] = prog; 7711553Srgrimes av[n++] = "-n"; 7721553Srgrimes av[n++] = logname; 7731553Srgrimes av[n++] = "-h"; 77478300Sgad av[n++] = origin_host; 77531492Swollman av[n++] = pp->acct_file; 7761553Srgrimes av[n] = 0; 7771553Srgrimes fo = pfd; 7781553Srgrimes if (ofilter > 0) { /* stop output filter */ 7791553Srgrimes write(ofd, "\031\1", 2); 7801553Srgrimes while ((pid = 78197781Sgad wait3(&wstatus, WUNTRACED, 0)) > 0 && pid != ofilter) 7821553Srgrimes ; 78379735Sgad if (pid < 0) 78479735Sgad syslog(LOG_WARNING, "%s: after stopping 'of', wait3() returned: %m", 78579735Sgad pp->printer); 78697781Sgad else if (!WIFSTOPPED(wstatus)) { 7871553Srgrimes (void) close(fi); 78897781Sgad syslog(LOG_WARNING, "%s: output filter died " 78997781Sgad "(pid=%d retcode=%d termsig=%d)", 79097781Sgad pp->printer, ofilter, WEXITSTATUS(wstatus), 79197781Sgad WTERMSIG(wstatus)); 7921553Srgrimes return(REPRINT); 7931553Srgrimes } 7941553Srgrimes stopped++; 7951553Srgrimes } 7961553Srgrimesstart: 79731492Swollman if ((child = dofork(pp, DORETURN)) == 0) { /* child */ 7981553Srgrimes dup2(fi, 0); 7991553Srgrimes dup2(fo, 1); 80068664Sgad /* setup stderr for the filter (child process) 80168664Sgad * so it goes to our temporary errors file */ 80268664Sgad n = open(tempstderr, O_WRONLY|O_TRUNC, 0664); 8031553Srgrimes if (n >= 0) 8041553Srgrimes dup2(n, 2); 8058094Sjkh closelog(); 80631492Swollman closeallfds(3); 8071553Srgrimes execv(prog, av); 80895067Sgad syslog(LOG_ERR, "%s: cannot execv(%s): %m", pp->printer, 80995067Sgad prog); 8101553Srgrimes exit(2); 8111553Srgrimes } 8121553Srgrimes (void) close(fi); 8131553Srgrimes if (child < 0) 81497781Sgad retcode = 100; 81579735Sgad else { 81697781Sgad while ((pid = wait(&wstatus)) > 0 && pid != child) 8171553Srgrimes ; 81879735Sgad if (pid < 0) { 81997781Sgad retcode = 100; 82079735Sgad syslog(LOG_WARNING, "%s: after execv(%s), wait() returned: %m", 82179735Sgad pp->printer, prog); 82297781Sgad } else 82397781Sgad retcode = WEXITSTATUS(wstatus); 82479735Sgad } 8251553Srgrimes child = 0; 8261553Srgrimes prchild = 0; 8271553Srgrimes if (stopped) { /* restart output filter */ 8281553Srgrimes if (kill(ofilter, SIGCONT) < 0) { 8291553Srgrimes syslog(LOG_ERR, "cannot restart output filter"); 8301553Srgrimes exit(1); 8311553Srgrimes } 8321553Srgrimes } 83331492Swollman pp->tof = 0; 8341553Srgrimes 83568664Sgad /* Copy the filter's output to "lf" logfile */ 83668664Sgad if ((fp = fopen(tempstderr, "r"))) { 8371553Srgrimes while (fgets(buf, sizeof(buf), fp)) 8381553Srgrimes fputs(buf, stderr); 8391553Srgrimes fclose(fp); 8401553Srgrimes } 8411553Srgrimes 84297781Sgad if (!WIFEXITED(wstatus)) { 84315648Sjoerg syslog(LOG_WARNING, "%s: filter '%c' terminated (termsig=%d)", 84497781Sgad pp->printer, format, WTERMSIG(wstatus)); 8451553Srgrimes return(ERROR); 8461553Srgrimes } 84797781Sgad switch (retcode) { 8481553Srgrimes case 0: 84931492Swollman pp->tof = 1; 8501553Srgrimes return(OK); 8511553Srgrimes case 1: 8521553Srgrimes return(REPRINT); 85315648Sjoerg case 2: 85415648Sjoerg return(ERROR); 8551553Srgrimes default: 85615648Sjoerg syslog(LOG_WARNING, "%s: filter '%c' exited (retcode=%d)", 85797781Sgad pp->printer, format, retcode); 85815648Sjoerg return(FILTERERR); 8591553Srgrimes } 8601553Srgrimes} 8611553Srgrimes 8621553Srgrimes/* 8631553Srgrimes * Send the daemon control file (cf) and any data files. 8641553Srgrimes * Return -1 if a non-recoverable error occured, 1 if a recoverable error and 8651553Srgrimes * 0 if all is well. 8661553Srgrimes */ 8671553Srgrimesstatic int 86878146Sgadsendit(struct printer *pp, char *file) 8691553Srgrimes{ 87095293Sgad int dfcopies, err, i; 8711553Srgrimes char *cp, last[BUFSIZ]; 8721553Srgrimes 8731553Srgrimes /* 8741553Srgrimes * open control file 8751553Srgrimes */ 8761553Srgrimes if ((cfp = fopen(file, "r")) == NULL) 8771553Srgrimes return(OK); 87868253Sgad 87968253Sgad /* initialize job-specific count of datafiles processed */ 88068253Sgad job_dfcnt = 0; 88168253Sgad 8821553Srgrimes /* 8831553Srgrimes * read the control file for work to do 8841553Srgrimes * 8851553Srgrimes * file format -- first character in the line is a command 8861553Srgrimes * rest of the line is the argument. 8871553Srgrimes * commands of interest are: 8881553Srgrimes * 8891553Srgrimes * a-z -- "file name" name of file to print 8901553Srgrimes * U -- "unlink" name of file to remove 8911553Srgrimes * (after we print it. (Pass 2 only)). 8921553Srgrimes */ 8931553Srgrimes 8941553Srgrimes /* 8951553Srgrimes * pass 1 8961553Srgrimes */ 89795293Sgad err = OK; 8981553Srgrimes while (getline(cfp)) { 8991553Srgrimes again: 9001553Srgrimes if (line[0] == 'S') { 9011553Srgrimes cp = line+1; 9021553Srgrimes i = 0; 9031553Srgrimes while (*cp >= '0' && *cp <= '9') 9041553Srgrimes i = i * 10 + (*cp++ - '0'); 9051553Srgrimes fdev = i; 9061553Srgrimes cp++; 9071553Srgrimes i = 0; 9081553Srgrimes while (*cp >= '0' && *cp <= '9') 9091553Srgrimes i = i * 10 + (*cp++ - '0'); 9101553Srgrimes fino = i; 91124831Sbrian } else if (line[0] == 'H') { 91278300Sgad strlcpy(origin_host, line + 1, sizeof(origin_host)); 91368343Sgad if (class[0] == '\0') { 91480133Sgad strlcpy(class, line + 1, sizeof(class)); 91568343Sgad } 91624831Sbrian } else if (line[0] == 'P') { 91780133Sgad strlcpy(logname, line + 1, sizeof(logname)); 91831492Swollman if (pp->restricted) { /* restricted */ 91924831Sbrian if (getpwnam(logname) == NULL) { 92031492Swollman sendmail(pp, line+1, NOACCT); 92124831Sbrian err = ERROR; 92224831Sbrian break; 92324831Sbrian } 92424831Sbrian } 92524831Sbrian } else if (line[0] == 'I') { 92680133Sgad strlcpy(indent+2, line + 1, sizeof(indent) - 2); 92724831Sbrian } else if (line[0] >= 'a' && line[0] <= 'z') { 92895293Sgad dfcopies = 1; 9291553Srgrimes strcpy(last, line); 93095293Sgad while ((i = getline(cfp)) != 0) { 93195293Sgad if (strcmp(last, line) != 0) 9321553Srgrimes break; 93395293Sgad dfcopies++; 93495293Sgad } 93595293Sgad switch (sendfile(pp, '\3', last+1, *last, dfcopies)) { 9361553Srgrimes case OK: 9371553Srgrimes if (i) 9381553Srgrimes goto again; 9391553Srgrimes break; 9401553Srgrimes case REPRINT: 9411553Srgrimes (void) fclose(cfp); 9421553Srgrimes return(REPRINT); 9431553Srgrimes case ACCESS: 94431492Swollman sendmail(pp, logname, ACCESS); 9451553Srgrimes case ERROR: 9461553Srgrimes err = ERROR; 9471553Srgrimes } 9481553Srgrimes break; 9491553Srgrimes } 9501553Srgrimes } 95195293Sgad if (err == OK && sendfile(pp, '\2', file, '\0', 1) > 0) { 9521553Srgrimes (void) fclose(cfp); 9531553Srgrimes return(REPRINT); 9541553Srgrimes } 9551553Srgrimes /* 9561553Srgrimes * pass 2 9571553Srgrimes */ 9581553Srgrimes fseek(cfp, 0L, 0); 9591553Srgrimes while (getline(cfp)) 96027748Simp if (line[0] == 'U' && !strchr(line+1, '/')) 9611553Srgrimes (void) unlink(line+1); 9621553Srgrimes /* 9631553Srgrimes * clean-up in case another control file exists 9641553Srgrimes */ 9651553Srgrimes (void) fclose(cfp); 9661553Srgrimes (void) unlink(file); 9671553Srgrimes return(err); 9681553Srgrimes} 9691553Srgrimes 9701553Srgrimes/* 9711553Srgrimes * Send a data file to the remote machine and spool it. 9721553Srgrimes * Return positive if we should try resending. 9731553Srgrimes */ 9741553Srgrimesstatic int 97595293Sgadsendfile(struct printer *pp, int type, char *file, char format, int copyreq) 9761553Srgrimes{ 97794036Sgad int i, amt; 9781553Srgrimes struct stat stb; 97994032Sgad char *av[15], *filtcmd; 98094032Sgad char buf[BUFSIZ], opt_c[4], opt_h[4], opt_n[4]; 98195293Sgad int copycnt, filtstat, narg, resp, sfd, sfres, sizerr, statrc; 9821553Srgrimes 98374124Sgad statrc = lstat(file, &stb); 98474124Sgad if (statrc < 0) { 98574124Sgad syslog(LOG_ERR, "%s: error from lstat(%s): %m", 98674124Sgad pp->printer, file); 98794036Sgad return (ERROR); 98874124Sgad } 98994036Sgad sfd = open(file, O_RDONLY); 99094036Sgad if (sfd < 0) { 99174124Sgad syslog(LOG_ERR, "%s: error from open(%s,O_RDONLY): %m", 99274124Sgad pp->printer, file); 99394036Sgad return (ERROR); 99474124Sgad } 9951553Srgrimes /* 9961553Srgrimes * Check to see if data file is a symbolic link. If so, it should 9971553Srgrimes * still point to the same file or someone is trying to print something 9981553Srgrimes * he shouldn't. 9991553Srgrimes */ 100094036Sgad if ((stb.st_mode & S_IFMT) == S_IFLNK && fstat(sfd, &stb) == 0 && 100194036Sgad (stb.st_dev != fdev || stb.st_ino != fino)) { 100294036Sgad close(sfd); 100394036Sgad return (ACCESS); 100494036Sgad } 100524831Sbrian 100694032Sgad /* Everything seems OK for reading the file, now to send it */ 100794032Sgad filtcmd = NULL; 100824831Sbrian sizerr = 0; 100994032Sgad tfd = -1; 101024831Sbrian if (type == '\3') { 101194032Sgad /* 101294032Sgad * Type == 3 means this is a datafile, not a control file. 101394032Sgad * Increment the counter of data-files in this job, and 101494032Sgad * then check for input or output filters (which are only 101594032Sgad * applied to datafiles, not control files). 101694032Sgad */ 101794032Sgad job_dfcnt++; 101894032Sgad 101994032Sgad /* 102094032Sgad * Note that here we are filtering datafiles, one at a time, 102194032Sgad * as they are sent to the remote machine. Here, the *only* 102294032Sgad * difference between an input filter (`if=') and an output 102394032Sgad * filter (`of=') is the argument list that the filter is 102494032Sgad * started up with. Here, the output filter is executed 102594032Sgad * for each individual file as it is sent. This is not the 102694032Sgad * same as local print queues, where the output filter is 102794032Sgad * started up once, and then all jobs are passed thru that 102894032Sgad * single invocation of the output filter. 102994032Sgad * 103094032Sgad * Also note that a queue for a remote-machine can have an 103194032Sgad * input filter or an output filter, but not both. 103294032Sgad */ 103331492Swollman if (pp->filters[LPF_INPUT]) { 103494032Sgad filtcmd = pp->filters[LPF_INPUT]; 103594032Sgad av[0] = filtcmd; 103694032Sgad narg = 0; 103794032Sgad strcpy(opt_c, "-c"); 103894032Sgad strcpy(opt_h, "-h"); 103994032Sgad strcpy(opt_n, "-n"); 104024831Sbrian if (format == 'l') 104194032Sgad av[++narg] = opt_c; 104294032Sgad av[++narg] = width; 104394032Sgad av[++narg] = length; 104494032Sgad av[++narg] = indent; 104594032Sgad av[++narg] = opt_n; 104694032Sgad av[++narg] = logname; 104794032Sgad av[++narg] = opt_h; 104894032Sgad av[++narg] = origin_host; 104994032Sgad av[++narg] = pp->acct_file; 105094032Sgad av[++narg] = NULL; 105194032Sgad } else if (pp->filters[LPF_OUTPUT]) { 105294032Sgad filtcmd = pp->filters[LPF_OUTPUT]; 105394032Sgad av[0] = filtcmd; 105494032Sgad narg = 0; 105594032Sgad av[++narg] = width; 105694032Sgad av[++narg] = length; 105794032Sgad av[++narg] = NULL; 105824831Sbrian } 105924831Sbrian } 106094032Sgad if (filtcmd) { 106194032Sgad /* 106294032Sgad * If there is an input or output filter, we have to run 106394032Sgad * the datafile thru that filter and store the result as 106494032Sgad * a temporary spool file, because the protocol requires 106594032Sgad * that we send the remote host the file-size before we 106694032Sgad * start to send any of the data. 106794032Sgad */ 106894032Sgad strcpy(tfile, TFILENAME); 106994032Sgad tfd = mkstemp(tfile); 107094032Sgad if (tfd == -1) { 107194032Sgad syslog(LOG_ERR, "%s: mkstemp(%s): %m", pp->printer, 107294032Sgad TFILENAME); 107394036Sgad sfres = ERROR; 107494036Sgad goto return_sfres; 107594032Sgad } 107694036Sgad filtstat = execfilter(pp, filtcmd, av, sfd, tfd); 107724831Sbrian 107894032Sgad /* process the return-code from the filter */ 107994032Sgad switch (filtstat) { 108094032Sgad case 0: 108194032Sgad break; 108294032Sgad case 1: 108394036Sgad sfres = REPRINT; 108494036Sgad goto return_sfres; 108594032Sgad case 2: 108694036Sgad sfres = ERROR; 108794036Sgad goto return_sfres; 108894032Sgad default: 108994032Sgad syslog(LOG_WARNING, 109094032Sgad "%s: filter '%c' exited (retcode=%d)", 109194032Sgad pp->printer, format, filtstat); 109294036Sgad sfres = FILTERERR; 109394036Sgad goto return_sfres; 109494032Sgad } 109594032Sgad statrc = fstat(tfd, &stb); /* to find size of tfile */ 109694032Sgad if (statrc < 0) { 109794032Sgad syslog(LOG_ERR, 109894032Sgad "%s: error processing 'if', fstat(%s): %m", 109994032Sgad pp->printer, tfile); 110094036Sgad sfres = ERROR; 110194036Sgad goto return_sfres; 110294032Sgad } 110394036Sgad close(sfd); 110494036Sgad sfd = tfd; 110594036Sgad lseek(sfd, 0, SEEK_SET); 110694032Sgad } 110794032Sgad 110895293Sgad copycnt = 0; 110995293Sgadsendagain: 111095293Sgad copycnt++; 111195293Sgad 111295293Sgad if (copycnt < 2) 111395293Sgad (void) sprintf(buf, "%c%qd %s\n", type, stb.st_size, file); 111495293Sgad else 111595293Sgad (void) sprintf(buf, "%c%qd %s_c%d\n", type, stb.st_size, 111695293Sgad file, copycnt); 11171553Srgrimes amt = strlen(buf); 11181553Srgrimes for (i = 0; ; i++) { 11191553Srgrimes if (write(pfd, buf, amt) != amt || 112031492Swollman (resp = response(pp)) < 0 || resp == '\1') { 112194036Sgad sfres = REPRINT; 112294036Sgad goto return_sfres; 11231553Srgrimes } else if (resp == '\0') 11241553Srgrimes break; 11251553Srgrimes if (i == 0) 112631492Swollman pstatus(pp, 112731492Swollman "no space on remote; waiting for queue to drain"); 11281553Srgrimes if (i == 10) 11291553Srgrimes syslog(LOG_ALERT, "%s: can't send to %s; queue full", 113031492Swollman pp->printer, pp->remote_host); 11311553Srgrimes sleep(5 * 60); 11321553Srgrimes } 11331553Srgrimes if (i) 113431492Swollman pstatus(pp, "sending to %s", pp->remote_host); 113595293Sgad /* 113695293Sgad * XXX - we should change trstat_init()/trstat_write() to include 113795293Sgad * the copycnt in the statistics record it may write. 113895293Sgad */ 113968253Sgad if (type == '\3') 114068253Sgad trstat_init(pp, file, job_dfcnt); 11411553Srgrimes for (i = 0; i < stb.st_size; i += BUFSIZ) { 11421553Srgrimes amt = BUFSIZ; 11431553Srgrimes if (i + amt > stb.st_size) 11441553Srgrimes amt = stb.st_size - i; 114594036Sgad if (sizerr == 0 && read(sfd, buf, amt) != amt) 11461553Srgrimes sizerr = 1; 11471553Srgrimes if (write(pfd, buf, amt) != amt) { 114894036Sgad sfres = REPRINT; 114994036Sgad goto return_sfres; 11501553Srgrimes } 11511553Srgrimes } 11521553Srgrimes 11531553Srgrimes if (sizerr) { 115431492Swollman syslog(LOG_INFO, "%s: %s: changed size", pp->printer, file); 11551553Srgrimes /* tell recvjob to ignore this file */ 11561553Srgrimes (void) write(pfd, "\1", 1); 115794036Sgad sfres = ERROR; 115894036Sgad goto return_sfres; 11591553Srgrimes } 116031492Swollman if (write(pfd, "", 1) != 1 || response(pp)) { 116194036Sgad sfres = REPRINT; 116294036Sgad goto return_sfres; 116324831Sbrian } 116495293Sgad if (type == '\3') { 116568253Sgad trstat_write(pp, TR_SENDING, stb.st_size, logname, 116695293Sgad pp->remote_host, origin_host); 116795293Sgad /* 116895293Sgad * Usually we only need to send one copy of a datafile, 116995293Sgad * because the control-file will simply print the same 117095293Sgad * file multiple times. However, some printers ignore 117195293Sgad * the control file, and simply print each data file as 117295293Sgad * it arrives. For such "remote hosts", we need to 117395293Sgad * transfer the same data file multiple times. Such a 117495293Sgad * a host is indicated by adding 'rc' to the printcap 117595293Sgad * entry. 117695293Sgad * XXX - Right now this ONLY works for remote hosts which 117795293Sgad * do ignore the name of the data file, because 117895293Sgad * this sends the file multiple times with slight 117995293Sgad * changes to the filename. To do this right would 118095293Sgad * require that we also rewrite the control file 118195293Sgad * to match those filenames. 118295293Sgad */ 118395293Sgad if (pp->resend_copies && (copycnt < copyreq)) { 118495293Sgad lseek(sfd, 0, SEEK_SET); 118595293Sgad goto sendagain; 118695293Sgad } 118795293Sgad } 118894036Sgad sfres = OK; 118994036Sgad 119094036Sgadreturn_sfres: 119194036Sgad (void)close(sfd); 119294036Sgad if (tfd != -1) { 119394036Sgad /* 119494036Sgad * If tfd is set, then it is the same value as sfd, and 119594036Sgad * therefore it is already closed at this point. All 119694036Sgad * we need to do is remove the temporary file. 119794036Sgad */ 119894036Sgad tfd = -1; 119994036Sgad unlink(tfile); 120094036Sgad } 120194036Sgad return (sfres); 12021553Srgrimes} 12031553Srgrimes 12041553Srgrimes/* 120594032Sgad * This routine is called to execute one of the filters as was 120694036Sgad * specified in a printcap entry. While the child-process will read 120794036Sgad * all of 'infd', it is up to the caller to close that file descriptor 120894036Sgad * in the parent process. 120994032Sgad */ 121094032Sgadstatic int 121194032Sgadexecfilter(struct printer *pp, char *f_cmd, char *f_av[], int infd, int outfd) 121294032Sgad{ 121397781Sgad int errfd, fpid, retcode, wpid, wstatus; 121494032Sgad FILE *errfp; 121594032Sgad char buf[BUFSIZ], *slash; 121694032Sgad 121794032Sgad fpid = dofork(pp, DORETURN); 121894032Sgad if (fpid != 0) { 121994032Sgad /* 122094032Sgad * This is the parent process, which just waits for the child 122194032Sgad * to complete and then returns the result. Note that it is 122294032Sgad * the child process which reads the input stream. 122394032Sgad */ 122494032Sgad if (fpid < 0) 122597781Sgad retcode = 100; 122694032Sgad else { 122797781Sgad while ((wpid = wait(&wstatus)) > 0 && 122894032Sgad wpid != fpid) 122994032Sgad ; 123094032Sgad if (wpid < 0) { 123197781Sgad retcode = 100; 123294032Sgad syslog(LOG_WARNING, 123394032Sgad "%s: after execv(%s), wait() returned: %m", 123494032Sgad pp->printer, f_cmd); 123597781Sgad } else 123697781Sgad retcode = WEXITSTATUS(wstatus); 123794032Sgad } 123894032Sgad 123994032Sgad /* 124094032Sgad * Copy everything the filter wrote to stderr from our 124194032Sgad * temporary errors file to the "lf=" logfile. 124294032Sgad */ 124394032Sgad errfp = fopen(tempstderr, "r"); 124494032Sgad if (errfp) { 124594032Sgad while (fgets(buf, sizeof(buf), errfp)) 124694032Sgad fputs(buf, stderr); 124794032Sgad fclose(errfp); 124894032Sgad } 124994032Sgad 125097781Sgad return (retcode); 125194032Sgad } 125294032Sgad 125394032Sgad /* 125494032Sgad * This is the child process, which is the one that executes the 125594032Sgad * given filter. 125694032Sgad */ 125794032Sgad /* 125894032Sgad * If the first parameter has any slashes in it, then change it 125994032Sgad * to point to the first character after the last slash. 126094032Sgad */ 126194032Sgad slash = strrchr(f_av[0], '/'); 126294032Sgad if (slash != NULL) 126394032Sgad f_av[0] = slash + 1; 126494032Sgad /* 126594032Sgad * XXX - in the future, this should setup an explicit list of 126694032Sgad * environment variables and use execve()! 126794032Sgad */ 126894032Sgad 126994032Sgad /* 127094032Sgad * Setup stdin, stdout, and stderr as we want them when the filter 127194032Sgad * is running. Stderr is setup so it points to a temporary errors 127294032Sgad * file, and the parent process will copy that temporary file to 127394032Sgad * the real logfile after the filter completes. 127494032Sgad */ 127594032Sgad dup2(infd, 0); 127694032Sgad dup2(outfd, 1); 127794032Sgad errfd = open(tempstderr, O_WRONLY|O_TRUNC, 0664); 127894032Sgad if (errfd >= 0) 127994032Sgad dup2(errfd, 2); 128094032Sgad closelog(); 128194032Sgad closeallfds(3); 128294032Sgad execv(f_cmd, f_av); 128395067Sgad syslog(LOG_ERR, "%s: cannot execv(%s): %m", pp->printer, f_cmd); 128494032Sgad exit(2); 128594032Sgad /* NOTREACHED */ 128694032Sgad} 128794032Sgad 128894032Sgad/* 12891553Srgrimes * Check to make sure there have been no errors and that both programs 12901553Srgrimes * are in sync with eachother. 12911553Srgrimes * Return non-zero if the connection was lost. 12921553Srgrimes */ 12931553Srgrimesstatic char 129478146Sgadresponse(const struct printer *pp) 12951553Srgrimes{ 12961553Srgrimes char resp; 12971553Srgrimes 12981553Srgrimes if (read(pfd, &resp, 1) != 1) { 129931492Swollman syslog(LOG_INFO, "%s: lost connection", pp->printer); 13001553Srgrimes return(-1); 13011553Srgrimes } 13021553Srgrimes return(resp); 13031553Srgrimes} 13041553Srgrimes 13051553Srgrimes/* 13061553Srgrimes * Banner printing stuff 13071553Srgrimes */ 13081553Srgrimesstatic void 130978146Sgadbanner(struct printer *pp, char *name1, char *name2) 13101553Srgrimes{ 13111553Srgrimes time_t tvec; 13121553Srgrimes 13131553Srgrimes time(&tvec); 131431492Swollman if (!pp->no_formfeed && !pp->tof) 131531492Swollman (void) write(ofd, pp->form_feed, strlen(pp->form_feed)); 131631492Swollman if (pp->short_banner) { /* short banner only */ 13171553Srgrimes if (class[0]) { 13181553Srgrimes (void) write(ofd, class, strlen(class)); 13191553Srgrimes (void) write(ofd, ":", 1); 13201553Srgrimes } 13211553Srgrimes (void) write(ofd, name1, strlen(name1)); 13221553Srgrimes (void) write(ofd, " Job: ", 7); 13231553Srgrimes (void) write(ofd, name2, strlen(name2)); 13241553Srgrimes (void) write(ofd, " Date: ", 8); 13251553Srgrimes (void) write(ofd, ctime(&tvec), 24); 13261553Srgrimes (void) write(ofd, "\n", 1); 13271553Srgrimes } else { /* normal banner */ 13281553Srgrimes (void) write(ofd, "\n\n\n", 3); 132931492Swollman scan_out(pp, ofd, name1, '\0'); 13301553Srgrimes (void) write(ofd, "\n\n", 2); 133131492Swollman scan_out(pp, ofd, name2, '\0'); 13321553Srgrimes if (class[0]) { 13331553Srgrimes (void) write(ofd,"\n\n\n",3); 133431492Swollman scan_out(pp, ofd, class, '\0'); 13351553Srgrimes } 13361553Srgrimes (void) write(ofd, "\n\n\n\n\t\t\t\t\tJob: ", 15); 13371553Srgrimes (void) write(ofd, name2, strlen(name2)); 13381553Srgrimes (void) write(ofd, "\n\t\t\t\t\tDate: ", 12); 13391553Srgrimes (void) write(ofd, ctime(&tvec), 24); 13401553Srgrimes (void) write(ofd, "\n", 1); 13411553Srgrimes } 134231492Swollman if (!pp->no_formfeed) 134331492Swollman (void) write(ofd, pp->form_feed, strlen(pp->form_feed)); 134431492Swollman pp->tof = 1; 13451553Srgrimes} 13461553Srgrimes 13471553Srgrimesstatic char * 134878146Sgadscnline(int key, char *p, int c) 13491553Srgrimes{ 135039084Swollman register int scnwidth; 13511553Srgrimes 13521553Srgrimes for (scnwidth = WIDTH; --scnwidth;) { 13531553Srgrimes key <<= 1; 13541553Srgrimes *p++ = key & 0200 ? c : BACKGND; 13551553Srgrimes } 13561553Srgrimes return (p); 13571553Srgrimes} 13581553Srgrimes 13591553Srgrimes#define TRC(q) (((q)-' ')&0177) 13601553Srgrimes 13611553Srgrimesstatic void 136278146Sgadscan_out(struct printer *pp, int scfd, char *scsp, int dlm) 13631553Srgrimes{ 13641553Srgrimes register char *strp; 136539084Swollman register int nchrs, j; 13661553Srgrimes char outbuf[LINELEN+1], *sp, c, cc; 13671553Srgrimes int d, scnhgt; 13681553Srgrimes 13691553Srgrimes for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) { 13701553Srgrimes strp = &outbuf[0]; 13711553Srgrimes sp = scsp; 13721553Srgrimes for (nchrs = 0; ; ) { 13731553Srgrimes d = dropit(c = TRC(cc = *sp++)); 13741553Srgrimes if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d)) 13751553Srgrimes for (j = WIDTH; --j;) 13761553Srgrimes *strp++ = BACKGND; 13771553Srgrimes else 137831492Swollman strp = scnline(scnkey[(int)c][scnhgt-1-d], strp, cc); 137931492Swollman if (*sp == dlm || *sp == '\0' || 138031492Swollman nchrs++ >= pp->page_width/(WIDTH+1)-1) 13811553Srgrimes break; 13821553Srgrimes *strp++ = BACKGND; 13831553Srgrimes *strp++ = BACKGND; 13841553Srgrimes } 13851553Srgrimes while (*--strp == BACKGND && strp >= outbuf) 13861553Srgrimes ; 13871553Srgrimes strp++; 13888857Srgrimes *strp++ = '\n'; 13891553Srgrimes (void) write(scfd, outbuf, strp-outbuf); 13901553Srgrimes } 13911553Srgrimes} 13921553Srgrimes 13931553Srgrimesstatic int 139478146Sgaddropit(int c) 13951553Srgrimes{ 13961553Srgrimes switch(c) { 13971553Srgrimes 13981553Srgrimes case TRC('_'): 13991553Srgrimes case TRC(';'): 14001553Srgrimes case TRC(','): 14011553Srgrimes case TRC('g'): 14021553Srgrimes case TRC('j'): 14031553Srgrimes case TRC('p'): 14041553Srgrimes case TRC('q'): 14051553Srgrimes case TRC('y'): 14061553Srgrimes return (DROP); 14071553Srgrimes 14081553Srgrimes default: 14091553Srgrimes return (0); 14101553Srgrimes } 14111553Srgrimes} 14121553Srgrimes 14131553Srgrimes/* 14141553Srgrimes * sendmail --- 14151553Srgrimes * tell people about job completion 14161553Srgrimes */ 14171553Srgrimesstatic void 141894038Sgadsendmail(struct printer *pp, char *userid, int bombed) 14191553Srgrimes{ 14201553Srgrimes register int i; 14211553Srgrimes int p[2], s; 142278146Sgad register const char *cp; 14231553Srgrimes struct stat stb; 14241553Srgrimes FILE *fp; 14251553Srgrimes 14261553Srgrimes pipe(p); 142731492Swollman if ((s = dofork(pp, DORETURN)) == 0) { /* child */ 14281553Srgrimes dup2(p[0], 0); 14298094Sjkh closelog(); 143031492Swollman closeallfds(3); 143127635Simp if ((cp = strrchr(_PATH_SENDMAIL, '/')) != NULL) 14321553Srgrimes cp++; 143331492Swollman else 14341553Srgrimes cp = _PATH_SENDMAIL; 143579452Sbrian execl(_PATH_SENDMAIL, cp, "-t", (char *)0); 143631492Swollman _exit(0); 14371553Srgrimes } else if (s > 0) { /* parent */ 14381553Srgrimes dup2(p[1], 1); 143994038Sgad printf("To: %s@%s\n", userid, origin_host); 144031492Swollman printf("Subject: %s printer job \"%s\"\n", pp->printer, 144115648Sjoerg *jobname ? jobname : "<unknown>"); 144278300Sgad printf("Reply-To: root@%s\n\n", local_host); 14431553Srgrimes printf("Your printer job "); 14441553Srgrimes if (*jobname) 14451553Srgrimes printf("(%s) ", jobname); 144694040Sgad 14471553Srgrimes switch (bombed) { 14481553Srgrimes case OK: 144994040Sgad cp = "OK"; 14501553Srgrimes printf("\ncompleted successfully\n"); 14511553Srgrimes break; 14521553Srgrimes default: 14531553Srgrimes case FATALERR: 145494040Sgad cp = "FATALERR"; 14551553Srgrimes printf("\ncould not be printed\n"); 14561553Srgrimes break; 14571553Srgrimes case NOACCT: 145894040Sgad cp = "NOACCT"; 145978300Sgad printf("\ncould not be printed without an account on %s\n", 146078300Sgad local_host); 14611553Srgrimes break; 14621553Srgrimes case FILTERERR: 146394040Sgad cp = "FILTERERR"; 146468664Sgad if (stat(tempstderr, &stb) < 0 || stb.st_size == 0 146568664Sgad || (fp = fopen(tempstderr, "r")) == NULL) { 146615648Sjoerg printf("\nhad some errors and may not have printed\n"); 14671553Srgrimes break; 14681553Srgrimes } 146915648Sjoerg printf("\nhad the following errors and may not have printed:\n"); 14701553Srgrimes while ((i = getc(fp)) != EOF) 14711553Srgrimes putchar(i); 14721553Srgrimes (void) fclose(fp); 14731553Srgrimes break; 14741553Srgrimes case ACCESS: 147594040Sgad cp = "ACCESS"; 14761553Srgrimes printf("\nwas not printed because it was not linked to the original file\n"); 14771553Srgrimes } 14781553Srgrimes fflush(stdout); 14791553Srgrimes (void) close(1); 148031492Swollman } else { 148194038Sgad syslog(LOG_WARNING, "unable to send mail to %s: %m", userid); 148231492Swollman return; 14831553Srgrimes } 14841553Srgrimes (void) close(p[0]); 14851553Srgrimes (void) close(p[1]); 148615648Sjoerg wait(NULL); 148715648Sjoerg syslog(LOG_INFO, "mail sent to user %s about job %s on printer %s (%s)", 148894038Sgad userid, *jobname ? jobname : "<unknown>", pp->printer, cp); 14891553Srgrimes} 14901553Srgrimes 14911553Srgrimes/* 14921553Srgrimes * dofork - fork with retries on failure 14931553Srgrimes */ 14941553Srgrimesstatic int 149578146Sgaddofork(const struct printer *pp, int action) 14961553Srgrimes{ 149780230Sgad int i, fail, forkpid; 149860871Smpp struct passwd *pwd; 14991553Srgrimes 150080230Sgad forkpid = -1; 150180230Sgad if (daemon_uname == NULL) { 150280230Sgad pwd = getpwuid(pp->daemon_user); 150380230Sgad if (pwd == NULL) { 150480230Sgad syslog(LOG_ERR, "%s: Can't lookup default daemon uid (%ld) in password file", 150580230Sgad pp->printer, pp->daemon_user); 150680230Sgad goto error_ret; 150780230Sgad } 150880230Sgad daemon_uname = strdup(pwd->pw_name); 150980230Sgad daemon_defgid = pwd->pw_gid; 151080230Sgad } 151180230Sgad 15121553Srgrimes for (i = 0; i < 20; i++) { 151380230Sgad forkpid = fork(); 151480230Sgad if (forkpid < 0) { 15151553Srgrimes sleep((unsigned)(i*i)); 15161553Srgrimes continue; 15171553Srgrimes } 15181553Srgrimes /* 15191553Srgrimes * Child should run as daemon instead of root 15201553Srgrimes */ 152178146Sgad if (forkpid == 0) { 152280230Sgad errno = 0; 152380230Sgad fail = initgroups(daemon_uname, daemon_defgid); 152480230Sgad if (fail) { 152580230Sgad syslog(LOG_ERR, "%s: initgroups(%s,%u): %m", 152680230Sgad pp->printer, daemon_uname, daemon_defgid); 152760871Smpp break; 152860871Smpp } 152980230Sgad fail = setgid(daemon_defgid); 153080230Sgad if (fail) { 153180230Sgad syslog(LOG_ERR, "%s: setgid(%u): %m", 153280230Sgad pp->printer, daemon_defgid); 153380230Sgad break; 153480230Sgad } 153580230Sgad fail = setuid(pp->daemon_user); 153680230Sgad if (fail) { 153780230Sgad syslog(LOG_ERR, "%s: setuid(%ld): %m", 153880230Sgad pp->printer, pp->daemon_user); 153980230Sgad break; 154080230Sgad } 154160871Smpp } 154280230Sgad return forkpid; 15431553Srgrimes } 15441553Srgrimes 154580230Sgad /* 154680230Sgad * An error occurred. If the error is in the child process, then 154780230Sgad * this routine MUST always exit(). DORETURN only effects how 154880230Sgad * errors should be handled in the parent process. 154980230Sgad */ 155080230Sgaderror_ret: 155180230Sgad if (forkpid == 0) { 155280230Sgad syslog(LOG_ERR, "%s: dofork(): aborting child process...", 155380230Sgad pp->printer); 155480230Sgad exit(1); 155580230Sgad } 155680230Sgad syslog(LOG_ERR, "%s: dofork(): failure in fork", pp->printer); 155780230Sgad 155880230Sgad sleep(1); /* throttle errors, as a safety measure */ 15591553Srgrimes switch (action) { 15601553Srgrimes case DORETURN: 156180230Sgad return -1; 15621553Srgrimes default: 15631553Srgrimes syslog(LOG_ERR, "bad action (%d) to dofork", action); 156480230Sgad /* FALLTHROUGH */ 15651553Srgrimes case DOABORT: 15661553Srgrimes exit(1); 15671553Srgrimes } 15681553Srgrimes /*NOTREACHED*/ 15691553Srgrimes} 15701553Srgrimes 15711553Srgrimes/* 15721553Srgrimes * Kill child processes to abort current job. 15731553Srgrimes */ 15741553Srgrimesstatic void 157578146Sgadabortpr(int signo __unused) 15761553Srgrimes{ 157768664Sgad 157868664Sgad (void) unlink(tempstderr); 15791553Srgrimes kill(0, SIGINT); 15801553Srgrimes if (ofilter > 0) 15811553Srgrimes kill(ofilter, SIGCONT); 15821553Srgrimes while (wait(NULL) > 0) 15831553Srgrimes ; 158424831Sbrian if (ofilter > 0 && tfd != -1) 158524831Sbrian unlink(tfile); 15861553Srgrimes exit(0); 15871553Srgrimes} 15881553Srgrimes 15891553Srgrimesstatic void 159078146Sgadinit(struct printer *pp) 15911553Srgrimes{ 15921553Srgrimes char *s; 15931553Srgrimes 159431492Swollman sprintf(&width[2], "%ld", pp->page_width); 159531492Swollman sprintf(&length[2], "%ld", pp->page_length); 159631492Swollman sprintf(&pxwidth[2], "%ld", pp->page_pwidth); 159731492Swollman sprintf(&pxlength[2], "%ld", pp->page_plength); 159831492Swollman if ((s = checkremote(pp)) != 0) { 159931492Swollman syslog(LOG_WARNING, "%s", s); 160031492Swollman free(s); 160131492Swollman } 160231492Swollman} 160331492Swollman 160431492Swollmanvoid 160578146Sgadstartprinting(const char *printer) 160631492Swollman{ 160731492Swollman struct printer myprinter, *pp = &myprinter; 160831492Swollman int status; 160931492Swollman 161031492Swollman init_printer(pp); 161131492Swollman status = getprintcap(printer, pp); 161231492Swollman switch(status) { 161331492Swollman case PCAPERR_OSERR: 161431492Swollman syslog(LOG_ERR, "can't open printer description file: %m"); 16151553Srgrimes exit(1); 161631492Swollman case PCAPERR_NOTFOUND: 16171553Srgrimes syslog(LOG_ERR, "unknown printer: %s", printer); 16181553Srgrimes exit(1); 161931492Swollman case PCAPERR_TCLOOP: 162031492Swollman fatal(pp, "potential reference loop detected in printcap file"); 162131492Swollman default: 162231492Swollman break; 162331492Swollman } 162431492Swollman printjob(pp); 16251553Srgrimes} 16261553Srgrimes 16271553Srgrimes/* 16281553Srgrimes * Acquire line printer or remote connection. 16291553Srgrimes */ 16301553Srgrimesstatic void 163178146Sgadopenpr(const struct printer *pp) 16321553Srgrimes{ 163331492Swollman int p[2]; 163415648Sjoerg char *cp; 16351553Srgrimes 163631492Swollman if (pp->remote) { 163731492Swollman openrem(pp); 163894032Sgad /* 163994032Sgad * Lpd does support the setting of 'of=' filters for 164094032Sgad * jobs going to remote machines, but that does not 164194032Sgad * have the same meaning as 'of=' does when handling 164294032Sgad * local print queues. For remote machines, all 'of=' 164394032Sgad * filter processing is handled in sendfile(), and that 164494032Sgad * does not use these global "output filter" variables. 164594032Sgad */ 164694032Sgad ofd = -1; 164794032Sgad ofilter = 0; 164894032Sgad return; 164931492Swollman } else if (*pp->lp) { 165031492Swollman if ((cp = strchr(pp->lp, '@')) != NULL) 165131492Swollman opennet(pp); 165215648Sjoerg else 165331492Swollman opentty(pp); 16541553Srgrimes } else { 16551553Srgrimes syslog(LOG_ERR, "%s: no line printer device or host name", 165631492Swollman pp->printer); 16571553Srgrimes exit(1); 16581553Srgrimes } 165915648Sjoerg 16601553Srgrimes /* 16611553Srgrimes * Start up an output filter, if needed. 16621553Srgrimes */ 166331492Swollman if (pp->filters[LPF_OUTPUT] && !pp->filters[LPF_INPUT] && !ofilter) { 16641553Srgrimes pipe(p); 166531492Swollman if (pp->remote) { 166631492Swollman strcpy(tfile, TFILENAME); 166724831Sbrian tfd = mkstemp(tfile); 166824831Sbrian } 166931492Swollman if ((ofilter = dofork(pp, DOABORT)) == 0) { /* child */ 16701553Srgrimes dup2(p[0], 0); /* pipe is std in */ 167124831Sbrian /* tfile/printer is stdout */ 167231492Swollman dup2(pp->remote ? tfd : pfd, 1); 16738094Sjkh closelog(); 167431492Swollman closeallfds(3); 167531492Swollman if ((cp = strrchr(pp->filters[LPF_OUTPUT], '/')) == NULL) 167631492Swollman cp = pp->filters[LPF_OUTPUT]; 16771553Srgrimes else 16781553Srgrimes cp++; 167979452Sbrian execl(pp->filters[LPF_OUTPUT], cp, width, length, 168079452Sbrian (char *)0); 168131492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, 168231492Swollman pp->filters[LPF_OUTPUT]); 16831553Srgrimes exit(1); 16841553Srgrimes } 16851553Srgrimes (void) close(p[0]); /* close input side */ 16861553Srgrimes ofd = p[1]; /* use pipe for output */ 16871553Srgrimes } else { 16881553Srgrimes ofd = pfd; 16891553Srgrimes ofilter = 0; 16901553Srgrimes } 16911553Srgrimes} 16921553Srgrimes 169315648Sjoerg/* 169415648Sjoerg * Printer connected directly to the network 169515648Sjoerg * or to a terminal server on the net 169615648Sjoerg */ 169715648Sjoergstatic void 169878146Sgadopennet(const struct printer *pp) 169915648Sjoerg{ 170015648Sjoerg register int i; 170131492Swollman int resp; 170231492Swollman u_long port; 170331492Swollman char *ep; 170430407Sjoerg void (*savealrm)(int); 170515648Sjoerg 170631492Swollman port = strtoul(pp->lp, &ep, 0); 170738470Sbrian if (*ep != '@' || port > 65535) { 170831492Swollman syslog(LOG_ERR, "%s: bad port number: %s", pp->printer, 170931492Swollman pp->lp); 171015648Sjoerg exit(1); 171115648Sjoerg } 171231492Swollman ep++; 171315648Sjoerg 171415648Sjoerg for (i = 1; ; i = i < 256 ? i << 1 : i) { 171515648Sjoerg resp = -1; 171630407Sjoerg savealrm = signal(SIGALRM, alarmhandler); 171731492Swollman alarm(pp->conn_timeout); 171831492Swollman pfd = getport(pp, ep, port); 171931020Sjoerg alarm(0); 172030407Sjoerg (void)signal(SIGALRM, savealrm); 172115648Sjoerg if (pfd < 0 && errno == ECONNREFUSED) 172215648Sjoerg resp = 1; 172315648Sjoerg else if (pfd >= 0) { 172415648Sjoerg /* 172515648Sjoerg * need to delay a bit for rs232 lines 172615648Sjoerg * to stabilize in case printer is 172715648Sjoerg * connected via a terminal server 172815648Sjoerg */ 172915648Sjoerg delay(500); 173015648Sjoerg break; 173115648Sjoerg } 173215648Sjoerg if (i == 1) { 173331492Swollman if (resp < 0) 173431492Swollman pstatus(pp, "waiting for %s to come up", 173531492Swollman pp->lp); 173631492Swollman else 173731492Swollman pstatus(pp, 173831492Swollman "waiting for access to printer on %s", 173931492Swollman pp->lp); 174015648Sjoerg } 174115648Sjoerg sleep(i); 174215648Sjoerg } 174379739Sgad pstatus(pp, "sending to %s port %lu", ep, port); 174415648Sjoerg} 174515648Sjoerg 174615648Sjoerg/* 174715648Sjoerg * Printer is connected to an RS232 port on this host 174815648Sjoerg */ 174915648Sjoergstatic void 175078146Sgadopentty(const struct printer *pp) 175115648Sjoerg{ 175215648Sjoerg register int i; 175315648Sjoerg 175415648Sjoerg for (i = 1; ; i = i < 32 ? i << 1 : i) { 175531492Swollman pfd = open(pp->lp, pp->rw ? O_RDWR : O_WRONLY); 175615648Sjoerg if (pfd >= 0) { 175715648Sjoerg delay(500); 175815648Sjoerg break; 175915648Sjoerg } 176015648Sjoerg if (errno == ENOENT) { 176131492Swollman syslog(LOG_ERR, "%s: %m", pp->lp); 176215648Sjoerg exit(1); 176315648Sjoerg } 176415648Sjoerg if (i == 1) 176531492Swollman pstatus(pp, 176631492Swollman "waiting for %s to become ready (offline?)", 176731492Swollman pp->printer); 176815648Sjoerg sleep(i); 176915648Sjoerg } 177015648Sjoerg if (isatty(pfd)) 177131492Swollman setty(pp); 177231492Swollman pstatus(pp, "%s is ready and printing", pp->printer); 177315648Sjoerg} 177415648Sjoerg 177515648Sjoerg/* 177615648Sjoerg * Printer is on a remote host 177715648Sjoerg */ 177815648Sjoergstatic void 177978146Sgadopenrem(const struct printer *pp) 178015648Sjoerg{ 178131492Swollman register int i; 178227748Simp int resp; 178330407Sjoerg void (*savealrm)(int); 178415648Sjoerg 178515648Sjoerg for (i = 1; ; i = i < 256 ? i << 1 : i) { 178615648Sjoerg resp = -1; 178730407Sjoerg savealrm = signal(SIGALRM, alarmhandler); 178831492Swollman alarm(pp->conn_timeout); 178931492Swollman pfd = getport(pp, pp->remote_host, 0); 179031020Sjoerg alarm(0); 179130407Sjoerg (void)signal(SIGALRM, savealrm); 179215648Sjoerg if (pfd >= 0) { 179331492Swollman if ((writel(pfd, "\2", pp->remote_queue, "\n", 179431492Swollman (char *)0) 179531492Swollman == 2 + strlen(pp->remote_queue)) 179631492Swollman && (resp = response(pp)) == 0) 179715648Sjoerg break; 179815648Sjoerg (void) close(pfd); 179915648Sjoerg } 180015648Sjoerg if (i == 1) { 180115648Sjoerg if (resp < 0) 180231492Swollman pstatus(pp, "waiting for %s to come up", 180331492Swollman pp->remote_host); 180415648Sjoerg else { 180531492Swollman pstatus(pp, 180631492Swollman "waiting for queue to be enabled on %s", 180731492Swollman pp->remote_host); 180815648Sjoerg i = 256; 180915648Sjoerg } 181015648Sjoerg } 181115648Sjoerg sleep(i); 181215648Sjoerg } 181331492Swollman pstatus(pp, "sending to %s", pp->remote_host); 181415648Sjoerg} 181515648Sjoerg 18161553Srgrimes/* 18171553Srgrimes * setup tty lines. 18181553Srgrimes */ 18191553Srgrimesstatic void 182078146Sgadsetty(const struct printer *pp) 18211553Srgrimes{ 182215032Ssef struct termios ttybuf; 18231553Srgrimes 18241553Srgrimes if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) { 182531492Swollman syslog(LOG_ERR, "%s: ioctl(TIOCEXCL): %m", pp->printer); 18261553Srgrimes exit(1); 18271553Srgrimes } 182815032Ssef if (tcgetattr(pfd, &ttybuf) < 0) { 182931492Swollman syslog(LOG_ERR, "%s: tcgetattr: %m", pp->printer); 18301553Srgrimes exit(1); 18311553Srgrimes } 183231492Swollman if (pp->baud_rate > 0) 183331492Swollman cfsetspeed(&ttybuf, pp->baud_rate); 183431492Swollman if (pp->mode_set) { 183531492Swollman char *s = strdup(pp->mode_set), *tmp; 183615032Ssef 183731492Swollman while ((tmp = strsep(&s, ",")) != NULL) { 183839084Swollman (void) msearch(tmp, &ttybuf); 18391553Srgrimes } 18401553Srgrimes } 184131492Swollman if (pp->mode_set != 0 || pp->baud_rate > 0) { 184215032Ssef if (tcsetattr(pfd, TCSAFLUSH, &ttybuf) == -1) { 184331492Swollman syslog(LOG_ERR, "%s: tcsetattr: %m", pp->printer); 18441553Srgrimes } 18451553Srgrimes } 18461553Srgrimes} 18471553Srgrimes 18481553Srgrimes#include <stdarg.h> 18491553Srgrimes 185015648Sjoergstatic void 185131492Swollmanpstatus(const struct printer *pp, const char *msg, ...) 18521553Srgrimes{ 185331492Swollman int fd; 185431492Swollman char *buf; 18551553Srgrimes va_list ap; 18561553Srgrimes va_start(ap, msg); 18571553Srgrimes 18581553Srgrimes umask(0); 185931492Swollman fd = open(pp->status_file, O_WRONLY|O_CREAT|O_EXLOCK, STAT_FILE_MODE); 186031492Swollman if (fd < 0) { 186131492Swollman syslog(LOG_ERR, "%s: %s: %m", pp->printer, pp->status_file); 18621553Srgrimes exit(1); 18631553Srgrimes } 18641553Srgrimes ftruncate(fd, 0); 186531492Swollman vasprintf(&buf, msg, ap); 18661553Srgrimes va_end(ap); 186731492Swollman writel(fd, buf, "\n", (char *)0); 186831492Swollman close(fd); 186931492Swollman free(buf); 18701553Srgrimes} 187130407Sjoerg 187230407Sjoergvoid 187378146Sgadalarmhandler(int signo __unused) 187430407Sjoerg{ 187578146Sgad /* the signal is ignored */ 187678146Sgad /* (the '__unused' is just to avoid a compile-time warning) */ 187730407Sjoerg} 1878