2 * $Id: main.c,v 1.7 2001-06-25 20:13:45 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>
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 ];
146 struct atp_block atpb;
147 struct sockaddr_at sat;
152 char *p, hostname[ MAXHOSTNAMELEN ];
156 if ( gethostname( hostname, sizeof( hostname )) < 0 ) {
157 perror( "gethostname" );
160 if (( p = strchr( hostname, '.' )) != 0 ) {
163 if (( defprinter.p_name = (char *)malloc( strlen( hostname ) + 1 ))
168 strcpy( defprinter.p_name, hostname );
169 defprinter.p_type = "LaserWriter";
170 defprinter.p_zone = "*";
171 memset(&defprinter.p_addr, 0, sizeof(defprinter.p_addr));
172 defprinter.p_ppdfile = _PATH_PAPDPPDFILE;
174 defprinter.p_flags = P_PIPED;
175 defprinter.p_printer = "/usr/bin/lp -T PS";
177 defprinter.p_flags = P_SPOOLED;
178 defprinter.p_printer = "lp";
179 #endif /* __svr4__ */
180 defprinter.p_operator = "operator";
181 defprinter.p_spool = _PATH_PAPDSPOOLDIR;
183 defprinter.p_role = NULL;
184 defprinter.p_srvid = 0;
185 #endif /* ABS_PRINT */
186 defprinter.p_pagecost = 200; /* default cost */
187 defprinter.p_pagecost_msg = NULL;
188 defprinter.p_lock = "lock";
190 while (( c = getopt( ac, av, "adf:p:P:" )) != EOF ) {
192 case 'a' : /* for compatibility with old papd */
195 case 'd' : /* debug */
199 case 'f' : /* conffile */
203 case 'p' : /* printcap */
213 "Usage:\t%s [ -d ] [ -f conffile ] [ -p printcap ]\n",
219 getprinters( conffile );
221 switch (server_lock("papd", pidfile, debug)) {
222 case 0: /* open a couple things again in the child */
223 if ((c = open("/", O_RDONLY)) >= 0) {
237 if (( p = strrchr( av[ 0 ], '/' )) == NULL ) {
243 openlog( p, LOG_PID );
245 openlog( p, LOG_NDELAY|LOG_PID, LOG_LPR );
248 syslog( LOG_INFO, "restart (%s)", version );
250 for ( pr = printers; pr; pr = pr->p_next ) {
251 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) < 0 ) {
252 syslog( LOG_ERR, "printcap problem: %s", pr->p_printer );
254 if (( pr->p_atp = atp_open( ATADDR_ANYPORT, &pr->p_addr )) == NULL ) {
255 syslog( LOG_ERR, "atp_open: %m" );
258 if ( nbp_rgstr( atp_sockaddr( pr->p_atp ), pr->p_name, pr->p_type,
260 syslog( LOG_ERR, "can't register %s:%s@%s", pr->p_name, pr->p_type,
264 if ( pr->p_flags & P_AUTH ) {
265 syslog( LOG_INFO, "Authentication enabled: %s", pr->p_name );
268 syslog( LOG_INFO, "Authentication disabled: %s", pr->p_name );
270 syslog( LOG_INFO, "register %s:%s@%s", pr->p_name, pr->p_type,
272 pr->p_flags |= P_REGISTERED;
275 memset(&sv, 0, sizeof(sv));
277 sigemptyset( &sv.sa_mask );
278 sv.sa_flags = SA_RESTART;
279 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
280 syslog( LOG_ERR, "sigaction: %m" );
284 sv.sa_handler = reap;
285 sigemptyset( &sv.sa_mask );
286 sv.sa_flags = SA_RESTART;
287 if ( sigaction( SIGCHLD, &sv, 0 ) < 0 ) {
288 syslog( LOG_ERR, "sigaction: %m" );
295 auth_load(uampath, uamlist);
298 * Begin accepting connections.
302 for ( pr = printers; pr; pr = pr->p_next ) {
303 FD_SET( atp_fileno( pr->p_atp ), &fdset );
305 if (( c = select( FD_SETSIZE, &fdset, 0, 0, 0 )) < 0 ) {
306 if ( errno == EINTR ) {
309 syslog( LOG_ERR, "select: %m" );
313 for ( pr = printers; pr; pr = pr->p_next ) {
314 if ( FD_ISSET( atp_fileno( pr->p_atp ), &fdset )) {
317 bzero( &sat, sizeof( struct sockaddr_at ));
319 sat.sat_len = sizeof( struct sockaddr_at );
321 sat.sat_family = AF_APPLETALK;
322 sat.sat_addr.s_net = ATADDR_ANYNET;
323 sat.sat_addr.s_node = ATADDR_ANYNODE;
324 sat.sat_port = ATADDR_ANYPORT;
325 /* do an atp_rsel(), to prevent hangs */
326 if (( c = atp_rsel( pr->p_atp, &sat, ATP_TREQ )) != ATP_TREQ ) {
329 atpb.atp_saddr = &sat;
330 atpb.atp_rreqdata = cbuf;
331 atpb.atp_rreqdlen = sizeof( cbuf );
332 if ( atp_rreq( pr->p_atp, &atpb ) < 0 ) {
333 syslog( LOG_ERR, "atp_rreq: %m" );
337 /* should check length of req buf */
339 switch( cbuf[ 1 ] ) {
341 connid = (unsigned char)cbuf[ 0 ];
342 sock = (unsigned char)cbuf[ 4 ];
343 quantum = (unsigned char)cbuf[ 5 ];
344 rbuf[ 0 ] = cbuf[ 0 ];
345 rbuf[ 1 ] = PAP_OPENREPLY;
346 rbuf[ 2 ] = rbuf[ 3 ] = 0;
348 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) != 0 ) {
349 syslog( LOG_ERR, "printcap problem: %s",
351 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
356 * If this fails, we've run out of sockets. Rather than
357 * just die(), let's try to continue. Maybe some sockets
358 * will close, and we can continue;
360 if (( atp = atp_open( ATADDR_ANYPORT,
361 &pr->p_addr)) == NULL ) {
362 syslog( LOG_ERR, "atp_open: %m" );
363 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
366 rbuf[ 4 ] = atp_sockaddr( atp )->sat_port;
367 rbuf[ 5 ] = oquantum;
368 rbuf[ 6 ] = rbuf[ 7 ] = 0;
371 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
372 atpb.atp_sresiov = &iov;
373 atpb.atp_sresiovcnt = 1;
375 * This may error out if we lose a route, so we won't die().
377 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
378 syslog( LOG_ERR, "atp_sresp: %m" );
386 switch ( c = fork()) {
388 syslog( LOG_ERR, "fork: %m" );
394 if (( printer->p_flags & P_SPOOLED ) &&
395 chdir( printer->p_spool ) < 0 ) {
396 syslog( LOG_ERR, "chdir %s: %m", printer->p_spool );
400 sv.sa_handler = SIG_DFL;
401 sigemptyset( &sv.sa_mask );
402 sv.sa_flags = SA_RESTART;
403 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
404 syslog( LOG_ERR, "sigaction: %m" );
408 for ( pr = printers; pr; pr = pr->p_next ) {
409 atp_close( pr->p_atp );
412 if ( session( atp, &sat ) < 0 ) {
413 syslog( LOG_ERR, "bad session" );
419 default : /* parent */
420 syslog( LOG_INFO, "child %d for \"%s\" from %u.%u",
421 c, pr->p_name, ntohs( sat.sat_addr.s_net ),
422 sat.sat_addr.s_node);
427 case PAP_SENDSTATUS :
429 rbuf[ 1 ] = PAP_STATUS;
430 rbuf[ 2 ] = rbuf[ 3 ] = 0;
431 rbuf[ 4 ] = rbuf[ 5 ] = 0;
432 rbuf[ 6 ] = rbuf[ 7 ] = 0;
435 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
436 atpb.atp_sresiov = &iov;
437 atpb.atp_sresiovcnt = 1;
439 * This may error out if we lose a route, so we won't die().
441 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
442 syslog( LOG_ERR, "atp_sresp: %m" );
447 syslog( LOG_ERR, "Bad request from %u.%u!",
448 ntohs( sat.sat_addr.s_net ), sat.sat_addr.s_node );
455 * Sometimes the child process will send its first READ
456 * before the parent has sent the OPEN REPLY. Moving this
457 * code into the OPEN/STATUS switch fixes this problem.
460 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
461 atpb.atp_sresiov = &iov;
462 atpb.atp_sresiovcnt = 1;
464 * This may error out if we lose a route, so we won't die().
466 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
467 syslog( LOG_ERR, "atp_sresp: %m" );
477 * We assume buf is big enough for 255 bytes of data and a length byte.
480 int getstatus( pr, buf )
484 char path[ MAXPATHLEN ];
487 if ( pr->p_flags & P_SPOOLED && ( pr->p_spool != NULL )) {
488 strcpy( path, pr->p_spool );
489 strcat( path, "/status" );
490 fd = open( path, O_RDONLY);
493 if (( pr->p_flags & P_PIPED ) || ( fd < 0 )) {
494 *buf = strlen( cannedstatus );
495 strncpy( &buf[ 1 ], cannedstatus, *buf );
498 if (( rc = read( fd, &buf[ 1 ], 255 )) < 0 ) {
502 if ( rc && buf[ rc ] == '\n' ) { /* remove trailing newline */
513 void getprinters( cf )
516 char buf[ 1024 ], area[ 1024 ], *a, *p, *name, *type, *zone;
520 while (( c = getprent( cf, buf )) > 0 ) {
523 * Get the printer's nbp name.
525 if (( p = getpname( &a )) == NULL ) {
526 fprintf( stderr, "No printer name\n" );
530 if (( pr = (struct printer *)malloc( sizeof( struct printer )))
535 bzero( pr, sizeof( struct printer ));
537 name = defprinter.p_name;
538 type = defprinter.p_type;
539 zone = defprinter.p_zone;
540 if ( nbp_name( p, &name, &type, &zone )) {
541 fprintf( stderr, "Can't parse \"%s\"\n", name );
544 if ( name != defprinter.p_name ) {
545 if (( pr->p_name = (char *)malloc( strlen( name ) + 1 )) == NULL ) {
549 strcpy( pr->p_name, name );
553 if ( type != defprinter.p_type ) {
554 if (( pr->p_type = (char *)malloc( strlen( type ) + 1 )) == NULL ) {
558 strcpy( pr->p_type, type );
562 if ( zone != defprinter.p_zone ) {
563 if (( pr->p_zone = (char *)malloc( strlen( zone ) + 1 )) == NULL ) {
567 strcpy( pr->p_zone, zone );
572 if ( pnchktc( cf ) != 1 ) {
573 fprintf( stderr, "Bad papcap entry\n" );
580 if (( p = pgetstr( "pd", &a )) == NULL ) {
581 pr->p_ppdfile = defprinter.p_ppdfile;
583 if (( pr->p_ppdfile = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
587 strcpy( pr->p_ppdfile, p );
591 * Get lpd printer name.
593 if (( p = pgetstr( "pr", &a )) == NULL ) {
594 pr->p_printer = defprinter.p_printer;
595 pr->p_flags = defprinter.p_flags;
599 pr->p_flags = P_PIPED;
601 pr->p_flags = P_SPOOLED;
603 if (( pr->p_printer = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
607 strcpy( pr->p_printer, p );
611 * Do we want authenticated printing?
613 if ((p = pgetstr( "ca", &a )) != NULL ) {
614 if ((pr->p_authprintdir = (char *)malloc(strlen(p)+1)) == NULL) {
618 strcpy( pr->p_authprintdir, p );
619 pr->p_flags |= P_AUTH;
620 pr->p_flags |= P_AUTH_CAP;
621 } else { pr->p_authprintdir = NULL; }
623 if ( pgetflag( "sp" ) == 1 ) {
624 pr->p_flags |= P_AUTH;
625 pr->p_flags |= P_AUTH_PSSP;
628 if ((p = pgetstr("am", &a)) != NULL ) {
629 if ((uamlist = (char *)malloc(strlen(p)+1)) == NULL ) {
636 if ( pr->p_flags & P_SPOOLED ) {
640 if (( p = pgetstr( "op", &a )) == NULL ) {
641 pr->p_operator = defprinter.p_operator;
643 if (( pr->p_operator = (char *)malloc( strlen( p ) + 1 ))
648 strcpy( pr->p_operator, p );
652 /* get printer's appletalk address. */
653 if (( p = pgetstr( "pa", &a )) == NULL )
654 memcpy(&pr->p_addr, &defprinter.p_addr, sizeof(pr->p_addr));
656 atalk_aton(p, &pr->p_addr);
658 pr->p_next = printers;
663 } else { /* No capability file, do default */
664 printers = &defprinter;
671 char buf[ 1024 ], area[ 1024 ], *a, *p;
675 * Spool directory from printcap file.
677 if ( pr->p_flags & P_SPOOLED ) {
678 if ( pgetent( printcap, buf, pr->p_printer ) != 1 ) {
679 syslog( LOG_ERR, "No such printer: %s", pr->p_printer );
686 if ( pr->p_spool != NULL && pr->p_spool != defprinter.p_spool ) {
690 if (( p = pgetstr( "sd", &a )) == NULL ) {
691 pr->p_spool = defprinter.p_spool;
693 if (( pr->p_spool = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
694 syslog( LOG_ERR, "malloc: %m" );
697 strcpy( pr->p_spool, p );
704 if ( pgetstr( "af", &a ) == NULL ) {
705 pr->p_flags &= ~P_ACCOUNT;
707 pr->p_flags |= P_ACCOUNT;
709 if ( pr->p_role != NULL && pr->p_role != defprinter.p_role ) {
713 if (( p = pgetstr( "ro", &a )) == NULL ) {
714 pr->p_role = defprinter.p_role;
717 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
718 syslog( LOG_ERR, "malloc: %m" );
721 strcpy( pr->p_role, p );
724 if (( c = pgetnum( "si" )) < 0 ) {
725 pr->p_srvid = defprinter.p_srvid;
729 #endif /* ABS_PRINT */
736 if ( pr->p_pagecost_msg != NULL &&
737 pr->p_pagecost_msg != defprinter.p_pagecost_msg ) {
738 free( pr->p_pagecost_msg );
741 if (( p = pgetstr( "pc", &a )) != NULL ) {
742 if (( pr->p_pagecost_msg =
743 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
744 syslog( LOG_ERR, "malloc: %m" );
747 strcpy( pr->p_pagecost_msg, p );
749 } else if ( pr->p_flags & P_ACCOUNT ) {
750 if (( c = pgetnum( "pc" )) < 0 ) {
751 pr->p_pagecost = defprinter.p_pagecost;
755 pr->p_pagecost_msg = NULL;
761 if ( pr->p_lock != NULL && pr->p_lock != defprinter.p_lock ) {
765 if (( p = pgetstr( "lo", &a )) == NULL ) {
766 pr->p_lock = defprinter.p_lock;
768 if (( pr->p_lock = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
769 syslog( LOG_ERR, "malloc: %m" );
772 strcpy( pr->p_lock, p );
777 * Must Kerberos authenticate?
779 if ( pgetflag( "ka" ) == 1 ) {
780 pr->p_flags |= P_KRB;
782 pr->p_flags &= ~P_KRB;