2 * $Id: main.c,v 1.10 2001-09-06 19:04:40 rufustfirefly Exp $
4 * Copyright (c) 1990,1995 Regents of The University of Michigan.
5 * All Rights Reserved. See COPYRIGHT.
10 #endif /* HAVE_CONFIG_H */
12 #include <sys/param.h>
15 #if defined( sun ) && defined( __svr4__ )
16 #include </usr/ucbinclude/sys/file.h>
17 #else /* sun && __svr4__ */
19 #endif /* sun && __svr4__ */
20 #include <sys/socket.h>
21 #include <sys/syslog.h>
23 /* POSIX.1 sys/wait.h check */
24 #include <sys/types.h>
25 #ifdef HAVE_SYS_WAIT_H
27 #endif /* HAVE_SYS_WAIT_H */
29 #define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
30 #endif /* ! WEXITSTATUS */
32 #define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
33 #endif /* ! WIFEXITED */
44 #endif /* HAVE_UNISTD_H */
46 #include <netatalk/endian.h>
47 #include <netatalk/at.h>
48 #include <atalk/compat.h>
49 #include <atalk/atp.h>
50 #include <atalk/pap.h>
51 #include <atalk/paths.h>
52 #include <atalk/util.h>
53 #include <atalk/nbp.h>
60 #define _PATH_PAPDPPDFILE ".ppd"
62 #define PIPED_STATUS "status: print spooler processing job"
64 struct printer defprinter;
65 struct printer *printers = NULL;
68 char *conffile = _PATH_PAPDCONF;
69 char *printcap = _PATH_PAPDPRINTCAP;
70 unsigned char connid, quantum, sock, oquantum = PAP_MAXQUANTUM;
71 char *cannedstatus = PIPED_STATUS;
72 struct printer *printer = NULL;
73 char *version = VERSION;
74 static char *pidfile = _PATH_PAPDLOCK;
77 char *uampath = _PATH_PAPDUAMPATH;
79 /* Prototypes for locally used functions */
80 int getstatus( struct printer *pr, char *buf );
81 int rprintcap( struct printer *pr );
82 void getprinters( char *cf );
85 /* this only needs to be used by the server process */
86 static void papd_exit(const int i)
88 server_unlock(pidfile);
93 #if !defined( ibm032 ) && !defined( _IBMR2 )
95 #endif /* ! ibm032 && ! _IBMR2 */
102 memset(&addr, 0, sizeof(addr));
104 for ( pr = printers; pr; pr = pr->p_next ) {
105 if ( pr->p_flags & P_REGISTERED ) {
106 if ( nbp_unrgstr( pr->p_name, pr->p_type, pr->p_zone, &addr ) < 0 ) {
107 syslog( LOG_ERR, "can't unregister %s:%s@%s\n", pr->p_name,
108 pr->p_type, pr->p_zone );
111 syslog( LOG_ERR, "unregister %s:%s@%s\n", pr->p_name, pr->p_type,
118 #if !defined( ibm032 ) && !defined( _IBMR2 )
120 #endif /* ! ibm032 && ! _IBMR2 */
126 while (( pid = wait3( &status, WNOHANG, 0 )) > 0 ) {
127 if ( WIFEXITED( status )) {
128 if ( WEXITSTATUS( status )) {
129 syslog( LOG_ERR, "child %d exited with %d", pid,
130 WEXITSTATUS( status ));
132 syslog( LOG_INFO, "child %d done", pid );
135 if ( WIFSIGNALED( status )) {
136 syslog( LOG_ERR, "child %d killed with %d", pid,
139 syslog( LOG_ERR, "child %d died", pid );
146 char rbuf[ 255 + 1 + 8 ];
155 struct atp_block atpb;
156 struct sockaddr_at sat;
161 char *p, hostname[ MAXHOSTNAMELEN ];
165 if ( gethostname( hostname, sizeof( hostname )) < 0 ) {
166 perror( "gethostname" );
169 if (( p = strchr( hostname, '.' )) != 0 ) {
172 if (( defprinter.p_name = (char *)malloc( strlen( hostname ) + 1 ))
177 strcpy( defprinter.p_name, hostname );
178 defprinter.p_type = "LaserWriter";
179 defprinter.p_zone = "*";
180 memset(&defprinter.p_addr, 0, sizeof(defprinter.p_addr));
181 defprinter.p_ppdfile = _PATH_PAPDPPDFILE;
183 defprinter.p_flags = P_PIPED;
184 defprinter.p_printer = "/usr/bin/lp -T PS";
186 defprinter.p_flags = P_SPOOLED;
187 defprinter.p_printer = "lp";
188 #endif /* __svr4__ */
189 defprinter.p_operator = "operator";
190 defprinter.p_spool = _PATH_PAPDSPOOLDIR;
192 defprinter.p_role = NULL;
193 defprinter.p_srvid = 0;
194 #endif /* ABS_PRINT */
195 defprinter.p_pagecost = 200; /* default cost */
196 defprinter.p_pagecost_msg = NULL;
197 defprinter.p_lock = "lock";
199 while (( c = getopt( ac, av, "adf:p:P:" )) != EOF ) {
201 case 'a' : /* for compatibility with old papd */
204 case 'd' : /* debug */
208 case 'f' : /* conffile */
212 case 'p' : /* printcap */
222 "Usage:\t%s [ -d ] [ -f conffile ] [ -p printcap ]\n",
228 getprinters( conffile );
230 switch (server_lock("papd", pidfile, debug)) {
231 case 0: /* open a couple things again in the child */
232 if ((c = open("/", O_RDONLY)) >= 0) {
246 if (( p = strrchr( av[ 0 ], '/' )) == NULL ) {
252 openlog( p, LOG_PID );
254 openlog( p, LOG_NDELAY|LOG_PID, LOG_LPR );
257 syslog( LOG_INFO, "restart (%s)", version );
259 for ( pr = printers; pr; pr = pr->p_next ) {
260 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) < 0 ) {
261 syslog( LOG_ERR, "printcap problem: %s", pr->p_printer );
263 if (( pr->p_atp = atp_open( ATADDR_ANYPORT, &pr->p_addr )) == NULL ) {
264 syslog( LOG_ERR, "atp_open: %m" );
267 if ( nbp_rgstr( atp_sockaddr( pr->p_atp ), pr->p_name, pr->p_type,
269 syslog( LOG_ERR, "can't register %s:%s@%s", pr->p_name, pr->p_type,
273 if ( pr->p_flags & P_AUTH ) {
274 syslog( LOG_INFO, "Authentication enabled: %s", pr->p_name );
277 syslog( LOG_INFO, "Authentication disabled: %s", pr->p_name );
279 syslog( LOG_INFO, "register %s:%s@%s", pr->p_name, pr->p_type,
281 pr->p_flags |= P_REGISTERED;
284 memset(&sv, 0, sizeof(sv));
286 sigemptyset( &sv.sa_mask );
287 sv.sa_flags = SA_RESTART;
288 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
289 syslog( LOG_ERR, "sigaction: %m" );
293 sv.sa_handler = reap;
294 sigemptyset( &sv.sa_mask );
295 sv.sa_flags = SA_RESTART;
296 if ( sigaction( SIGCHLD, &sv, 0 ) < 0 ) {
297 syslog( LOG_ERR, "sigaction: %m" );
304 auth_load(uampath, uamlist);
307 * Begin accepting connections.
311 for ( pr = printers; pr; pr = pr->p_next ) {
312 FD_SET( atp_fileno( pr->p_atp ), &fdset );
314 if (( c = select( FD_SETSIZE, &fdset, 0, 0, 0 )) < 0 ) {
315 if ( errno == EINTR ) {
318 syslog( LOG_ERR, "select: %m" );
322 for ( pr = printers; pr; pr = pr->p_next ) {
323 if ( FD_ISSET( atp_fileno( pr->p_atp ), &fdset )) {
326 memset( &sat, 0, sizeof( struct sockaddr_at ));
328 sat.sat_len = sizeof( struct sockaddr_at );
330 sat.sat_family = AF_APPLETALK;
331 sat.sat_addr.s_net = ATADDR_ANYNET;
332 sat.sat_addr.s_node = ATADDR_ANYNODE;
333 sat.sat_port = ATADDR_ANYPORT;
334 /* do an atp_rsel(), to prevent hangs */
335 if (( c = atp_rsel( pr->p_atp, &sat, ATP_TREQ )) != ATP_TREQ ) {
338 atpb.atp_saddr = &sat;
339 atpb.atp_rreqdata = cbuf;
340 atpb.atp_rreqdlen = sizeof( cbuf );
341 if ( atp_rreq( pr->p_atp, &atpb ) < 0 ) {
342 syslog( LOG_ERR, "atp_rreq: %m" );
346 /* should check length of req buf */
348 switch( cbuf[ 1 ] ) {
350 connid = (unsigned char)cbuf[ 0 ];
351 sock = (unsigned char)cbuf[ 4 ];
352 quantum = (unsigned char)cbuf[ 5 ];
353 rbuf[ 0 ] = cbuf[ 0 ];
354 rbuf[ 1 ] = PAP_OPENREPLY;
355 rbuf[ 2 ] = rbuf[ 3 ] = 0;
357 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) != 0 ) {
358 syslog( LOG_ERR, "printcap problem: %s",
360 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
365 * If this fails, we've run out of sockets. Rather than
366 * just die(), let's try to continue. Maybe some sockets
367 * will close, and we can continue;
369 if (( atp = atp_open( ATADDR_ANYPORT,
370 &pr->p_addr)) == NULL ) {
371 syslog( LOG_ERR, "atp_open: %m" );
372 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
375 rbuf[ 4 ] = atp_sockaddr( atp )->sat_port;
376 rbuf[ 5 ] = oquantum;
377 rbuf[ 6 ] = rbuf[ 7 ] = 0;
380 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
381 atpb.atp_sresiov = &iov;
382 atpb.atp_sresiovcnt = 1;
384 * This may error out if we lose a route, so we won't die().
386 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
387 syslog( LOG_ERR, "atp_sresp: %m" );
395 switch ( c = fork()) {
397 syslog( LOG_ERR, "fork: %m" );
403 if (( printer->p_flags & P_SPOOLED ) &&
404 chdir( printer->p_spool ) < 0 ) {
405 syslog( LOG_ERR, "chdir %s: %m", printer->p_spool );
409 sv.sa_handler = SIG_DFL;
410 sigemptyset( &sv.sa_mask );
411 sv.sa_flags = SA_RESTART;
412 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
413 syslog( LOG_ERR, "sigaction: %m" );
417 for ( pr = printers; pr; pr = pr->p_next ) {
418 atp_close( pr->p_atp );
421 if ( session( atp, &sat ) < 0 ) {
422 syslog( LOG_ERR, "bad session" );
428 default : /* parent */
429 syslog( LOG_INFO, "child %d for \"%s\" from %u.%u",
430 c, pr->p_name, ntohs( sat.sat_addr.s_net ),
431 sat.sat_addr.s_node);
436 case PAP_SENDSTATUS :
438 rbuf[ 1 ] = PAP_STATUS;
439 rbuf[ 2 ] = rbuf[ 3 ] = 0;
440 rbuf[ 4 ] = rbuf[ 5 ] = 0;
441 rbuf[ 6 ] = rbuf[ 7 ] = 0;
444 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
445 atpb.atp_sresiov = &iov;
446 atpb.atp_sresiovcnt = 1;
448 * This may error out if we lose a route, so we won't die().
450 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
451 syslog( LOG_ERR, "atp_sresp: %m" );
456 syslog( LOG_ERR, "Bad request from %u.%u!",
457 ntohs( sat.sat_addr.s_net ), sat.sat_addr.s_node );
464 * Sometimes the child process will send its first READ
465 * before the parent has sent the OPEN REPLY. Moving this
466 * code into the OPEN/STATUS switch fixes this problem.
469 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
470 atpb.atp_sresiov = &iov;
471 atpb.atp_sresiovcnt = 1;
473 * This may error out if we lose a route, so we won't die().
475 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
476 syslog( LOG_ERR, "atp_sresp: %m" );
486 * We assume buf is big enough for 255 bytes of data and a length byte.
489 int getstatus( pr, buf )
493 char path[ MAXPATHLEN ];
496 if ( pr->p_flags & P_SPOOLED && ( pr->p_spool != NULL )) {
497 strcpy( path, pr->p_spool );
498 strcat( path, "/status" );
499 fd = open( path, O_RDONLY);
502 if (( pr->p_flags & P_PIPED ) || ( fd < 0 )) {
503 *buf = strlen( cannedstatus );
504 strncpy( &buf[ 1 ], cannedstatus, *buf );
507 if (( rc = read( fd, &buf[ 1 ], 255 )) < 0 ) {
511 if ( rc && buf[ rc ] == '\n' ) { /* remove trailing newline */
522 void getprinters( cf )
525 char buf[ 1024 ], area[ 1024 ], *a, *p, *name, *type, *zone;
529 while (( c = getprent( cf, buf )) > 0 ) {
532 * Get the printer's nbp name.
534 if (( p = getpname( &a )) == NULL ) {
535 fprintf( stderr, "No printer name\n" );
539 if (( pr = (struct printer *)malloc( sizeof( struct printer )))
544 memset( pr, 0, sizeof( struct printer ));
546 name = defprinter.p_name;
547 type = defprinter.p_type;
548 zone = defprinter.p_zone;
549 if ( nbp_name( p, &name, &type, &zone )) {
550 fprintf( stderr, "Can't parse \"%s\"\n", name );
553 if ( name != defprinter.p_name ) {
554 if (( pr->p_name = (char *)malloc( strlen( name ) + 1 )) == NULL ) {
558 strcpy( pr->p_name, name );
562 if ( type != defprinter.p_type ) {
563 if (( pr->p_type = (char *)malloc( strlen( type ) + 1 )) == NULL ) {
567 strcpy( pr->p_type, type );
571 if ( zone != defprinter.p_zone ) {
572 if (( pr->p_zone = (char *)malloc( strlen( zone ) + 1 )) == NULL ) {
576 strcpy( pr->p_zone, zone );
581 if ( pnchktc( cf ) != 1 ) {
582 fprintf( stderr, "Bad papcap entry\n" );
589 if (( p = pgetstr( "pd", &a )) == NULL ) {
590 pr->p_ppdfile = defprinter.p_ppdfile;
592 if (( pr->p_ppdfile = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
596 strcpy( pr->p_ppdfile, p );
600 * Get lpd printer name.
602 if (( p = pgetstr( "pr", &a )) == NULL ) {
603 pr->p_printer = defprinter.p_printer;
604 pr->p_flags = defprinter.p_flags;
608 pr->p_flags = P_PIPED;
610 pr->p_flags = P_SPOOLED;
612 if (( pr->p_printer = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
616 strcpy( pr->p_printer, p );
620 * Do we want authenticated printing?
622 if ((p = pgetstr( "ca", &a )) != NULL ) {
623 if ((pr->p_authprintdir = (char *)malloc(strlen(p)+1)) == NULL) {
627 strcpy( pr->p_authprintdir, p );
628 pr->p_flags |= P_AUTH;
629 pr->p_flags |= P_AUTH_CAP;
630 } else { pr->p_authprintdir = NULL; }
632 if ( pgetflag( "sp" ) == 1 ) {
633 pr->p_flags |= P_AUTH;
634 pr->p_flags |= P_AUTH_PSSP;
637 if ((p = pgetstr("am", &a)) != NULL ) {
638 if ((uamlist = (char *)malloc(strlen(p)+1)) == NULL ) {
645 if ( pr->p_flags & P_SPOOLED ) {
649 if (( p = pgetstr( "op", &a )) == NULL ) {
650 pr->p_operator = defprinter.p_operator;
652 if (( pr->p_operator = (char *)malloc( strlen( p ) + 1 ))
657 strcpy( pr->p_operator, p );
661 /* get printer's appletalk address. */
662 if (( p = pgetstr( "pa", &a )) == NULL )
663 memcpy(&pr->p_addr, &defprinter.p_addr, sizeof(pr->p_addr));
665 atalk_aton(p, &pr->p_addr);
667 pr->p_next = printers;
672 } else { /* No capability file, do default */
673 printers = &defprinter;
680 char buf[ 1024 ], area[ 1024 ], *a, *p;
684 * Spool directory from printcap file.
686 if ( pr->p_flags & P_SPOOLED ) {
687 if ( pgetent( printcap, buf, pr->p_printer ) != 1 ) {
688 syslog( LOG_ERR, "No such printer: %s", pr->p_printer );
695 if ( pr->p_spool != NULL && pr->p_spool != defprinter.p_spool ) {
699 if (( p = pgetstr( "sd", &a )) == NULL ) {
700 pr->p_spool = defprinter.p_spool;
702 if (( pr->p_spool = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
703 syslog( LOG_ERR, "malloc: %m" );
706 strcpy( pr->p_spool, p );
713 if ( pgetstr( "af", &a ) == NULL ) {
714 pr->p_flags &= ~P_ACCOUNT;
716 pr->p_flags |= P_ACCOUNT;
718 if ( pr->p_role != NULL && pr->p_role != defprinter.p_role ) {
722 if (( p = pgetstr( "ro", &a )) == NULL ) {
723 pr->p_role = defprinter.p_role;
726 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
727 syslog( LOG_ERR, "malloc: %m" );
730 strcpy( pr->p_role, p );
733 if (( c = pgetnum( "si" )) < 0 ) {
734 pr->p_srvid = defprinter.p_srvid;
738 #endif /* ABS_PRINT */
745 if ( pr->p_pagecost_msg != NULL &&
746 pr->p_pagecost_msg != defprinter.p_pagecost_msg ) {
747 free( pr->p_pagecost_msg );
750 if (( p = pgetstr( "pc", &a )) != NULL ) {
751 if (( pr->p_pagecost_msg =
752 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
753 syslog( LOG_ERR, "malloc: %m" );
756 strcpy( pr->p_pagecost_msg, p );
758 } else if ( pr->p_flags & P_ACCOUNT ) {
759 if (( c = pgetnum( "pc" )) < 0 ) {
760 pr->p_pagecost = defprinter.p_pagecost;
764 pr->p_pagecost_msg = NULL;
770 if ( pr->p_lock != NULL && pr->p_lock != defprinter.p_lock ) {
774 if (( p = pgetstr( "lo", &a )) == NULL ) {
775 pr->p_lock = defprinter.p_lock;
777 if (( pr->p_lock = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
778 syslog( LOG_ERR, "malloc: %m" );
781 strcpy( pr->p_lock, p );
786 * Must Kerberos authenticate?
788 if ( pgetflag( "ka" ) == 1 ) {
789 pr->p_flags |= P_KRB;
791 pr->p_flags &= ~P_KRB;