2 * $Id: main.c,v 1.8 2001-07-31 19:50:14 srittau 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>
13 #include <sys/types.h>
16 #if defined( sun ) && defined( __svr4__ )
17 #include </usr/ucbinclude/sys/file.h>
18 #else /* sun && __svr4__ */
20 #endif /* sun && __svr4__ */
21 #include <sys/socket.h>
22 #include <sys/syslog.h>
34 #endif /* HAVE_UNISTD_H */
36 #include <netatalk/endian.h>
37 #include <netatalk/at.h>
38 #include <atalk/compat.h>
39 #include <atalk/atp.h>
40 #include <atalk/pap.h>
41 #include <atalk/paths.h>
42 #include <atalk/util.h>
43 #include <atalk/nbp.h>
50 #define _PATH_PAPDPPDFILE ".ppd"
52 #define PIPED_STATUS "status: print spooler processing job"
54 struct printer defprinter;
55 struct printer *printers = NULL;
58 char *conffile = _PATH_PAPDCONF;
59 char *printcap = _PATH_PAPDPRINTCAP;
60 unsigned char connid, quantum, sock, oquantum = PAP_MAXQUANTUM;
61 char *cannedstatus = PIPED_STATUS;
62 struct printer *printer = NULL;
63 char *version = VERSION;
64 static char *pidfile = _PATH_PAPDLOCK;
67 char *uampath = _PATH_PAPDUAMPATH;
69 /* Prototypes for locally used functions */
70 int getstatus( struct printer *pr, char *buf );
71 int rprintcap( struct printer *pr );
72 void getprinters( char *cf );
75 /* this only needs to be used by the server process */
76 static void papd_exit(const int i)
78 server_unlock(pidfile);
83 #if !defined( ibm032 ) && !defined( _IBMR2 )
85 #endif /* ! ibm032 && ! _IBMR2 */
92 memset(&addr, 0, sizeof(addr));
94 for ( pr = printers; pr; pr = pr->p_next ) {
95 if ( pr->p_flags & P_REGISTERED ) {
96 if ( nbp_unrgstr( pr->p_name, pr->p_type, pr->p_zone, &addr ) < 0 ) {
97 syslog( LOG_ERR, "can't unregister %s:%s@%s\n", pr->p_name,
98 pr->p_type, pr->p_zone );
101 syslog( LOG_ERR, "unregister %s:%s@%s\n", pr->p_name, pr->p_type,
108 #if !defined( ibm032 ) && !defined( _IBMR2 )
110 #endif /* ! ibm032 && ! _IBMR2 */
116 while (( pid = wait3( &status, WNOHANG, 0 )) > 0 ) {
117 if ( WIFEXITED( status )) {
118 if ( WEXITSTATUS( status )) {
119 syslog( LOG_ERR, "child %d exited with %d", pid,
120 WEXITSTATUS( status ));
122 syslog( LOG_INFO, "child %d done", pid );
125 if ( WIFSIGNALED( status )) {
126 syslog( LOG_ERR, "child %d killed with %d", pid,
129 syslog( LOG_ERR, "child %d died", pid );
136 char rbuf[ 255 + 1 + 8 ];
145 struct atp_block atpb;
146 struct sockaddr_at sat;
151 char *p, hostname[ MAXHOSTNAMELEN ];
155 if ( gethostname( hostname, sizeof( hostname )) < 0 ) {
156 perror( "gethostname" );
159 if (( p = strchr( hostname, '.' )) != 0 ) {
162 if (( defprinter.p_name = (char *)malloc( strlen( hostname ) + 1 ))
167 strcpy( defprinter.p_name, hostname );
168 defprinter.p_type = "LaserWriter";
169 defprinter.p_zone = "*";
170 memset(&defprinter.p_addr, 0, sizeof(defprinter.p_addr));
171 defprinter.p_ppdfile = _PATH_PAPDPPDFILE;
173 defprinter.p_flags = P_PIPED;
174 defprinter.p_printer = "/usr/bin/lp -T PS";
176 defprinter.p_flags = P_SPOOLED;
177 defprinter.p_printer = "lp";
178 #endif /* __svr4__ */
179 defprinter.p_operator = "operator";
180 defprinter.p_spool = _PATH_PAPDSPOOLDIR;
182 defprinter.p_role = NULL;
183 defprinter.p_srvid = 0;
184 #endif /* ABS_PRINT */
185 defprinter.p_pagecost = 200; /* default cost */
186 defprinter.p_pagecost_msg = NULL;
187 defprinter.p_lock = "lock";
189 while (( c = getopt( ac, av, "adf:p:P:" )) != EOF ) {
191 case 'a' : /* for compatibility with old papd */
194 case 'd' : /* debug */
198 case 'f' : /* conffile */
202 case 'p' : /* printcap */
212 "Usage:\t%s [ -d ] [ -f conffile ] [ -p printcap ]\n",
218 getprinters( conffile );
220 switch (server_lock("papd", pidfile, debug)) {
221 case 0: /* open a couple things again in the child */
222 if ((c = open("/", O_RDONLY)) >= 0) {
236 if (( p = strrchr( av[ 0 ], '/' )) == NULL ) {
242 openlog( p, LOG_PID );
244 openlog( p, LOG_NDELAY|LOG_PID, LOG_LPR );
247 syslog( LOG_INFO, "restart (%s)", version );
249 for ( pr = printers; pr; pr = pr->p_next ) {
250 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) < 0 ) {
251 syslog( LOG_ERR, "printcap problem: %s", pr->p_printer );
253 if (( pr->p_atp = atp_open( ATADDR_ANYPORT, &pr->p_addr )) == NULL ) {
254 syslog( LOG_ERR, "atp_open: %m" );
257 if ( nbp_rgstr( atp_sockaddr( pr->p_atp ), pr->p_name, pr->p_type,
259 syslog( LOG_ERR, "can't register %s:%s@%s", pr->p_name, pr->p_type,
263 if ( pr->p_flags & P_AUTH ) {
264 syslog( LOG_INFO, "Authentication enabled: %s", pr->p_name );
267 syslog( LOG_INFO, "Authentication disabled: %s", pr->p_name );
269 syslog( LOG_INFO, "register %s:%s@%s", pr->p_name, pr->p_type,
271 pr->p_flags |= P_REGISTERED;
274 memset(&sv, 0, sizeof(sv));
276 sigemptyset( &sv.sa_mask );
277 sv.sa_flags = SA_RESTART;
278 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
279 syslog( LOG_ERR, "sigaction: %m" );
283 sv.sa_handler = reap;
284 sigemptyset( &sv.sa_mask );
285 sv.sa_flags = SA_RESTART;
286 if ( sigaction( SIGCHLD, &sv, 0 ) < 0 ) {
287 syslog( LOG_ERR, "sigaction: %m" );
294 auth_load(uampath, uamlist);
297 * Begin accepting connections.
301 for ( pr = printers; pr; pr = pr->p_next ) {
302 FD_SET( atp_fileno( pr->p_atp ), &fdset );
304 if (( c = select( FD_SETSIZE, &fdset, 0, 0, 0 )) < 0 ) {
305 if ( errno == EINTR ) {
308 syslog( LOG_ERR, "select: %m" );
312 for ( pr = printers; pr; pr = pr->p_next ) {
313 if ( FD_ISSET( atp_fileno( pr->p_atp ), &fdset )) {
316 bzero( &sat, sizeof( struct sockaddr_at ));
318 sat.sat_len = sizeof( struct sockaddr_at );
320 sat.sat_family = AF_APPLETALK;
321 sat.sat_addr.s_net = ATADDR_ANYNET;
322 sat.sat_addr.s_node = ATADDR_ANYNODE;
323 sat.sat_port = ATADDR_ANYPORT;
324 /* do an atp_rsel(), to prevent hangs */
325 if (( c = atp_rsel( pr->p_atp, &sat, ATP_TREQ )) != ATP_TREQ ) {
328 atpb.atp_saddr = &sat;
329 atpb.atp_rreqdata = cbuf;
330 atpb.atp_rreqdlen = sizeof( cbuf );
331 if ( atp_rreq( pr->p_atp, &atpb ) < 0 ) {
332 syslog( LOG_ERR, "atp_rreq: %m" );
336 /* should check length of req buf */
338 switch( cbuf[ 1 ] ) {
340 connid = (unsigned char)cbuf[ 0 ];
341 sock = (unsigned char)cbuf[ 4 ];
342 quantum = (unsigned char)cbuf[ 5 ];
343 rbuf[ 0 ] = cbuf[ 0 ];
344 rbuf[ 1 ] = PAP_OPENREPLY;
345 rbuf[ 2 ] = rbuf[ 3 ] = 0;
347 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) != 0 ) {
348 syslog( LOG_ERR, "printcap problem: %s",
350 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
355 * If this fails, we've run out of sockets. Rather than
356 * just die(), let's try to continue. Maybe some sockets
357 * will close, and we can continue;
359 if (( atp = atp_open( ATADDR_ANYPORT,
360 &pr->p_addr)) == NULL ) {
361 syslog( LOG_ERR, "atp_open: %m" );
362 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
365 rbuf[ 4 ] = atp_sockaddr( atp )->sat_port;
366 rbuf[ 5 ] = oquantum;
367 rbuf[ 6 ] = rbuf[ 7 ] = 0;
370 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
371 atpb.atp_sresiov = &iov;
372 atpb.atp_sresiovcnt = 1;
374 * This may error out if we lose a route, so we won't die().
376 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
377 syslog( LOG_ERR, "atp_sresp: %m" );
385 switch ( c = fork()) {
387 syslog( LOG_ERR, "fork: %m" );
393 if (( printer->p_flags & P_SPOOLED ) &&
394 chdir( printer->p_spool ) < 0 ) {
395 syslog( LOG_ERR, "chdir %s: %m", printer->p_spool );
399 sv.sa_handler = SIG_DFL;
400 sigemptyset( &sv.sa_mask );
401 sv.sa_flags = SA_RESTART;
402 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
403 syslog( LOG_ERR, "sigaction: %m" );
407 for ( pr = printers; pr; pr = pr->p_next ) {
408 atp_close( pr->p_atp );
411 if ( session( atp, &sat ) < 0 ) {
412 syslog( LOG_ERR, "bad session" );
418 default : /* parent */
419 syslog( LOG_INFO, "child %d for \"%s\" from %u.%u",
420 c, pr->p_name, ntohs( sat.sat_addr.s_net ),
421 sat.sat_addr.s_node);
426 case PAP_SENDSTATUS :
428 rbuf[ 1 ] = PAP_STATUS;
429 rbuf[ 2 ] = rbuf[ 3 ] = 0;
430 rbuf[ 4 ] = rbuf[ 5 ] = 0;
431 rbuf[ 6 ] = rbuf[ 7 ] = 0;
434 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
435 atpb.atp_sresiov = &iov;
436 atpb.atp_sresiovcnt = 1;
438 * This may error out if we lose a route, so we won't die().
440 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
441 syslog( LOG_ERR, "atp_sresp: %m" );
446 syslog( LOG_ERR, "Bad request from %u.%u!",
447 ntohs( sat.sat_addr.s_net ), sat.sat_addr.s_node );
454 * Sometimes the child process will send its first READ
455 * before the parent has sent the OPEN REPLY. Moving this
456 * code into the OPEN/STATUS switch fixes this problem.
459 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
460 atpb.atp_sresiov = &iov;
461 atpb.atp_sresiovcnt = 1;
463 * This may error out if we lose a route, so we won't die().
465 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
466 syslog( LOG_ERR, "atp_sresp: %m" );
476 * We assume buf is big enough for 255 bytes of data and a length byte.
479 int getstatus( pr, buf )
483 char path[ MAXPATHLEN ];
486 if ( pr->p_flags & P_SPOOLED && ( pr->p_spool != NULL )) {
487 strcpy( path, pr->p_spool );
488 strcat( path, "/status" );
489 fd = open( path, O_RDONLY);
492 if (( pr->p_flags & P_PIPED ) || ( fd < 0 )) {
493 *buf = strlen( cannedstatus );
494 strncpy( &buf[ 1 ], cannedstatus, *buf );
497 if (( rc = read( fd, &buf[ 1 ], 255 )) < 0 ) {
501 if ( rc && buf[ rc ] == '\n' ) { /* remove trailing newline */
512 void getprinters( cf )
515 char buf[ 1024 ], area[ 1024 ], *a, *p, *name, *type, *zone;
519 while (( c = getprent( cf, buf )) > 0 ) {
522 * Get the printer's nbp name.
524 if (( p = getpname( &a )) == NULL ) {
525 fprintf( stderr, "No printer name\n" );
529 if (( pr = (struct printer *)malloc( sizeof( struct printer )))
534 bzero( pr, sizeof( struct printer ));
536 name = defprinter.p_name;
537 type = defprinter.p_type;
538 zone = defprinter.p_zone;
539 if ( nbp_name( p, &name, &type, &zone )) {
540 fprintf( stderr, "Can't parse \"%s\"\n", name );
543 if ( name != defprinter.p_name ) {
544 if (( pr->p_name = (char *)malloc( strlen( name ) + 1 )) == NULL ) {
548 strcpy( pr->p_name, name );
552 if ( type != defprinter.p_type ) {
553 if (( pr->p_type = (char *)malloc( strlen( type ) + 1 )) == NULL ) {
557 strcpy( pr->p_type, type );
561 if ( zone != defprinter.p_zone ) {
562 if (( pr->p_zone = (char *)malloc( strlen( zone ) + 1 )) == NULL ) {
566 strcpy( pr->p_zone, zone );
571 if ( pnchktc( cf ) != 1 ) {
572 fprintf( stderr, "Bad papcap entry\n" );
579 if (( p = pgetstr( "pd", &a )) == NULL ) {
580 pr->p_ppdfile = defprinter.p_ppdfile;
582 if (( pr->p_ppdfile = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
586 strcpy( pr->p_ppdfile, p );
590 * Get lpd printer name.
592 if (( p = pgetstr( "pr", &a )) == NULL ) {
593 pr->p_printer = defprinter.p_printer;
594 pr->p_flags = defprinter.p_flags;
598 pr->p_flags = P_PIPED;
600 pr->p_flags = P_SPOOLED;
602 if (( pr->p_printer = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
606 strcpy( pr->p_printer, p );
610 * Do we want authenticated printing?
612 if ((p = pgetstr( "ca", &a )) != NULL ) {
613 if ((pr->p_authprintdir = (char *)malloc(strlen(p)+1)) == NULL) {
617 strcpy( pr->p_authprintdir, p );
618 pr->p_flags |= P_AUTH;
619 pr->p_flags |= P_AUTH_CAP;
620 } else { pr->p_authprintdir = NULL; }
622 if ( pgetflag( "sp" ) == 1 ) {
623 pr->p_flags |= P_AUTH;
624 pr->p_flags |= P_AUTH_PSSP;
627 if ((p = pgetstr("am", &a)) != NULL ) {
628 if ((uamlist = (char *)malloc(strlen(p)+1)) == NULL ) {
635 if ( pr->p_flags & P_SPOOLED ) {
639 if (( p = pgetstr( "op", &a )) == NULL ) {
640 pr->p_operator = defprinter.p_operator;
642 if (( pr->p_operator = (char *)malloc( strlen( p ) + 1 ))
647 strcpy( pr->p_operator, p );
651 /* get printer's appletalk address. */
652 if (( p = pgetstr( "pa", &a )) == NULL )
653 memcpy(&pr->p_addr, &defprinter.p_addr, sizeof(pr->p_addr));
655 atalk_aton(p, &pr->p_addr);
657 pr->p_next = printers;
662 } else { /* No capability file, do default */
663 printers = &defprinter;
670 char buf[ 1024 ], area[ 1024 ], *a, *p;
674 * Spool directory from printcap file.
676 if ( pr->p_flags & P_SPOOLED ) {
677 if ( pgetent( printcap, buf, pr->p_printer ) != 1 ) {
678 syslog( LOG_ERR, "No such printer: %s", pr->p_printer );
685 if ( pr->p_spool != NULL && pr->p_spool != defprinter.p_spool ) {
689 if (( p = pgetstr( "sd", &a )) == NULL ) {
690 pr->p_spool = defprinter.p_spool;
692 if (( pr->p_spool = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
693 syslog( LOG_ERR, "malloc: %m" );
696 strcpy( pr->p_spool, p );
703 if ( pgetstr( "af", &a ) == NULL ) {
704 pr->p_flags &= ~P_ACCOUNT;
706 pr->p_flags |= P_ACCOUNT;
708 if ( pr->p_role != NULL && pr->p_role != defprinter.p_role ) {
712 if (( p = pgetstr( "ro", &a )) == NULL ) {
713 pr->p_role = defprinter.p_role;
716 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
717 syslog( LOG_ERR, "malloc: %m" );
720 strcpy( pr->p_role, p );
723 if (( c = pgetnum( "si" )) < 0 ) {
724 pr->p_srvid = defprinter.p_srvid;
728 #endif /* ABS_PRINT */
735 if ( pr->p_pagecost_msg != NULL &&
736 pr->p_pagecost_msg != defprinter.p_pagecost_msg ) {
737 free( pr->p_pagecost_msg );
740 if (( p = pgetstr( "pc", &a )) != NULL ) {
741 if (( pr->p_pagecost_msg =
742 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
743 syslog( LOG_ERR, "malloc: %m" );
746 strcpy( pr->p_pagecost_msg, p );
748 } else if ( pr->p_flags & P_ACCOUNT ) {
749 if (( c = pgetnum( "pc" )) < 0 ) {
750 pr->p_pagecost = defprinter.p_pagecost;
754 pr->p_pagecost_msg = NULL;
760 if ( pr->p_lock != NULL && pr->p_lock != defprinter.p_lock ) {
764 if (( p = pgetstr( "lo", &a )) == NULL ) {
765 pr->p_lock = defprinter.p_lock;
767 if (( pr->p_lock = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
768 syslog( LOG_ERR, "malloc: %m" );
771 strcpy( pr->p_lock, p );
776 * Must Kerberos authenticate?
778 if ( pgetflag( "ka" ) == 1 ) {
779 pr->p_flags |= P_KRB;
781 pr->p_flags &= ~P_KRB;