2 * $Id: main.c,v 1.14 2002-01-03 17:49:39 sibaz 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>
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 */
40 #else /* STDC_HEADERS */
44 #endif /* HAVE_STRCHR */
45 char *strchr (), *strrchr ();
47 #define memcpy(d,s,n) bcopy ((s), (d), (n))
48 #define memmove(d,s,n) bcopy ((s), (d), (n))
49 #endif /* ! HAVE_MEMCPY */
50 #endif /* STDC_HEADERS */
59 #endif /* HAVE_UNISTD_H */
61 #include <netatalk/endian.h>
62 #include <netatalk/at.h>
63 #include <atalk/compat.h>
64 #include <atalk/atp.h>
65 #include <atalk/pap.h>
66 #include <atalk/paths.h>
67 #include <atalk/util.h>
68 #include <atalk/nbp.h>
75 #define _PATH_PAPDPPDFILE ".ppd"
77 #define PIPED_STATUS "status: print spooler processing job"
79 struct printer defprinter;
80 struct printer *printers = NULL;
83 char *conffile = _PATH_PAPDCONF;
84 char *printcap = _PATH_PAPDPRINTCAP;
85 unsigned char connid, quantum, sock, oquantum = PAP_MAXQUANTUM;
86 char *cannedstatus = PIPED_STATUS;
87 struct printer *printer = NULL;
88 char *version = VERSION;
89 static char *pidfile = _PATH_PAPDLOCK;
92 char *uampath = _PATH_PAPDUAMPATH;
94 /* Prototypes for locally used functions */
95 int getstatus( struct printer *pr, char *buf );
96 int rprintcap( struct printer *pr );
97 void getprinters( char *cf );
100 /* this only needs to be used by the server process */
101 static void papd_exit(const int i)
103 server_unlock(pidfile);
108 #if !defined( ibm032 ) && !defined( _IBMR2 )
110 #endif /* ! ibm032 && ! _IBMR2 */
117 memset(&addr, 0, sizeof(addr));
119 for ( pr = printers; pr; pr = pr->p_next ) {
120 if ( pr->p_flags & P_REGISTERED ) {
121 if ( nbp_unrgstr( pr->p_name, pr->p_type, pr->p_zone, &addr ) < 0 ) {
122 syslog( LOG_ERR, "can't unregister %s:%s@%s\n", pr->p_name,
123 pr->p_type, pr->p_zone );
126 syslog( LOG_ERR, "unregister %s:%s@%s\n", pr->p_name, pr->p_type,
133 #if !defined( ibm032 ) && !defined( _IBMR2 )
135 #endif /* ! ibm032 && ! _IBMR2 */
141 while (( pid = wait3( &status, WNOHANG, 0 )) > 0 ) {
142 if ( WIFEXITED( status )) {
143 if ( WEXITSTATUS( status )) {
144 syslog( LOG_ERR, "child %d exited with %d", pid,
145 WEXITSTATUS( status ));
147 syslog( LOG_INFO, "child %d done", pid );
150 if ( WIFSIGNALED( status )) {
151 syslog( LOG_ERR, "child %d killed with %d", pid,
154 syslog( LOG_ERR, "child %d died", pid );
161 char rbuf[ 255 + 1 + 8 ];
170 struct atp_block atpb;
171 struct sockaddr_at sat;
176 char *p, hostname[ MAXHOSTNAMELEN ];
180 if ( gethostname( hostname, sizeof( hostname )) < 0 ) {
181 perror( "gethostname" );
184 if (( p = strchr( hostname, '.' )) != 0 ) {
187 if (( defprinter.p_name = (char *)malloc( strlen( hostname ) + 1 ))
192 strcpy( defprinter.p_name, hostname );
193 defprinter.p_type = "LaserWriter";
194 defprinter.p_zone = "*";
195 memset(&defprinter.p_addr, 0, sizeof(defprinter.p_addr));
196 defprinter.p_ppdfile = _PATH_PAPDPPDFILE;
198 defprinter.p_flags = P_PIPED;
199 defprinter.p_printer = "/usr/bin/lp -T PS";
201 defprinter.p_flags = P_SPOOLED;
202 defprinter.p_printer = "lp";
203 #endif /* __svr4__ */
204 defprinter.p_operator = "operator";
205 defprinter.p_spool = _PATH_PAPDSPOOLDIR;
207 defprinter.p_role = NULL;
208 defprinter.p_srvid = 0;
209 #endif /* ABS_PRINT */
210 defprinter.p_pagecost = 200; /* default cost */
211 defprinter.p_pagecost_msg = NULL;
212 defprinter.p_lock = "lock";
214 while (( c = getopt( ac, av, "adf:p:P:v" )) != EOF ) {
216 case 'a' : /* for compatibility with old papd */
219 case 'd' : /* debug */
223 case 'f' : /* conffile */
227 case 'p' : /* printcap */
235 case 'v' : /* version */
236 printf( "papd (version %s)\n", VERSION );
242 "Usage:\t%s [ -d ] [ -f conffile ] [ -p printcap ]\n",
248 getprinters( conffile );
250 switch (server_lock("papd", pidfile, debug)) {
251 case 0: /* open a couple things again in the child */
252 if ((c = open("/", O_RDONLY)) >= 0) {
266 if (( p = strrchr( av[ 0 ], '/' )) == NULL ) {
272 openlog( p, LOG_PID );
274 openlog( p, LOG_NDELAY|LOG_PID, LOG_LPR );
277 syslog( LOG_INFO, "restart (%s)", version );
279 for ( pr = printers; pr; pr = pr->p_next ) {
280 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) < 0 ) {
281 syslog( LOG_ERR, "printcap problem: %s", pr->p_printer );
283 if (( pr->p_atp = atp_open( ATADDR_ANYPORT, &pr->p_addr )) == NULL ) {
284 syslog( LOG_ERR, "atp_open: %m" );
287 if ( nbp_rgstr( atp_sockaddr( pr->p_atp ), pr->p_name, pr->p_type,
289 syslog( LOG_ERR, "can't register %s:%s@%s", pr->p_name, pr->p_type,
293 if ( pr->p_flags & P_AUTH ) {
294 syslog( LOG_INFO, "Authentication enabled: %s", pr->p_name );
297 syslog( LOG_INFO, "Authentication disabled: %s", pr->p_name );
299 syslog( LOG_INFO, "register %s:%s@%s", pr->p_name, pr->p_type,
301 pr->p_flags |= P_REGISTERED;
304 memset(&sv, 0, sizeof(sv));
306 sigemptyset( &sv.sa_mask );
307 sv.sa_flags = SA_RESTART;
308 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
309 syslog( LOG_ERR, "sigaction: %m" );
313 sv.sa_handler = reap;
314 sigemptyset( &sv.sa_mask );
315 sv.sa_flags = SA_RESTART;
316 if ( sigaction( SIGCHLD, &sv, 0 ) < 0 ) {
317 syslog( LOG_ERR, "sigaction: %m" );
324 auth_load(uampath, uamlist);
327 * Begin accepting connections.
331 for ( pr = printers; pr; pr = pr->p_next ) {
332 FD_SET( atp_fileno( pr->p_atp ), &fdset );
334 if (( c = select( FD_SETSIZE, &fdset, 0, 0, 0 )) < 0 ) {
335 if ( errno == EINTR ) {
338 syslog( LOG_ERR, "select: %m" );
342 for ( pr = printers; pr; pr = pr->p_next ) {
343 if ( FD_ISSET( atp_fileno( pr->p_atp ), &fdset )) {
346 memset( &sat, 0, sizeof( struct sockaddr_at ));
348 sat.sat_len = sizeof( struct sockaddr_at );
350 sat.sat_family = AF_APPLETALK;
351 sat.sat_addr.s_net = ATADDR_ANYNET;
352 sat.sat_addr.s_node = ATADDR_ANYNODE;
353 sat.sat_port = ATADDR_ANYPORT;
354 /* do an atp_rsel(), to prevent hangs */
355 if (( c = atp_rsel( pr->p_atp, &sat, ATP_TREQ )) != ATP_TREQ ) {
358 atpb.atp_saddr = &sat;
359 atpb.atp_rreqdata = cbuf;
360 atpb.atp_rreqdlen = sizeof( cbuf );
361 if ( atp_rreq( pr->p_atp, &atpb ) < 0 ) {
362 syslog( LOG_ERR, "atp_rreq: %m" );
366 /* should check length of req buf */
368 switch( cbuf[ 1 ] ) {
370 connid = (unsigned char)cbuf[ 0 ];
371 sock = (unsigned char)cbuf[ 4 ];
372 quantum = (unsigned char)cbuf[ 5 ];
373 rbuf[ 0 ] = cbuf[ 0 ];
374 rbuf[ 1 ] = PAP_OPENREPLY;
375 rbuf[ 2 ] = rbuf[ 3 ] = 0;
377 if (( pr->p_flags & P_SPOOLED ) && rprintcap( pr ) != 0 ) {
378 syslog( LOG_ERR, "printcap problem: %s",
380 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
385 * If this fails, we've run out of sockets. Rather than
386 * just die(), let's try to continue. Maybe some sockets
387 * will close, and we can continue;
389 if (( atp = atp_open( ATADDR_ANYPORT,
390 &pr->p_addr)) == NULL ) {
391 syslog( LOG_ERR, "atp_open: %m" );
392 rbuf[ 2 ] = rbuf[ 3 ] = 0xff;
395 rbuf[ 4 ] = atp_sockaddr( atp )->sat_port;
396 rbuf[ 5 ] = oquantum;
397 rbuf[ 6 ] = rbuf[ 7 ] = 0;
400 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
401 atpb.atp_sresiov = &iov;
402 atpb.atp_sresiovcnt = 1;
404 * This may error out if we lose a route, so we won't die().
406 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
407 syslog( LOG_ERR, "atp_sresp: %m" );
415 switch ( c = fork()) {
417 syslog( LOG_ERR, "fork: %m" );
423 if (( printer->p_flags & P_SPOOLED ) &&
424 chdir( printer->p_spool ) < 0 ) {
425 syslog( LOG_ERR, "chdir %s: %m", printer->p_spool );
429 sv.sa_handler = SIG_DFL;
430 sigemptyset( &sv.sa_mask );
431 sv.sa_flags = SA_RESTART;
432 if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
433 syslog( LOG_ERR, "sigaction: %m" );
437 for ( pr = printers; pr; pr = pr->p_next ) {
438 atp_close( pr->p_atp );
441 if ( session( atp, &sat ) < 0 ) {
442 syslog( LOG_ERR, "bad session" );
448 default : /* parent */
449 syslog( LOG_INFO, "child %d for \"%s\" from %u.%u",
450 c, pr->p_name, ntohs( sat.sat_addr.s_net ),
451 sat.sat_addr.s_node);
456 case PAP_SENDSTATUS :
458 rbuf[ 1 ] = PAP_STATUS;
459 rbuf[ 2 ] = rbuf[ 3 ] = 0;
460 rbuf[ 4 ] = rbuf[ 5 ] = 0;
461 rbuf[ 6 ] = rbuf[ 7 ] = 0;
464 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
465 atpb.atp_sresiov = &iov;
466 atpb.atp_sresiovcnt = 1;
468 * This may error out if we lose a route, so we won't die().
470 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
471 syslog( LOG_ERR, "atp_sresp: %m" );
476 syslog( LOG_ERR, "Bad request from %u.%u!",
477 ntohs( sat.sat_addr.s_net ), sat.sat_addr.s_node );
484 * Sometimes the child process will send its first READ
485 * before the parent has sent the OPEN REPLY. Moving this
486 * code into the OPEN/STATUS switch fixes this problem.
489 iov.iov_len = 8 + getstatus( pr, &rbuf[ 8 ] );
490 atpb.atp_sresiov = &iov;
491 atpb.atp_sresiovcnt = 1;
493 * This may error out if we lose a route, so we won't die().
495 if ( atp_sresp( pr->p_atp, &atpb ) < 0 ) {
496 syslog( LOG_ERR, "atp_sresp: %m" );
506 * We assume buf is big enough for 255 bytes of data and a length byte.
509 int getstatus( pr, buf )
513 char path[ MAXPATHLEN ];
516 if ( pr->p_flags & P_SPOOLED && ( pr->p_spool != NULL )) {
517 strcpy( path, pr->p_spool );
518 strcat( path, "/status" );
519 fd = open( path, O_RDONLY);
522 if (( pr->p_flags & P_PIPED ) || ( fd < 0 )) {
523 *buf = strlen( cannedstatus );
524 strncpy( &buf[ 1 ], cannedstatus, *buf );
527 if (( rc = read( fd, &buf[ 1 ], 255 )) < 0 ) {
531 if ( rc && buf[ rc ] == '\n' ) { /* remove trailing newline */
542 void getprinters( cf )
545 char buf[ 1024 ], area[ 1024 ], *a, *p, *name, *type, *zone;
549 while (( c = getprent( cf, buf )) > 0 ) {
552 * Get the printer's nbp name.
554 if (( p = getpname( &a )) == NULL ) {
555 fprintf( stderr, "No printer name\n" );
559 if (( pr = (struct printer *)malloc( sizeof( struct printer )))
564 memset( pr, 0, sizeof( struct printer ));
566 name = defprinter.p_name;
567 type = defprinter.p_type;
568 zone = defprinter.p_zone;
569 if ( nbp_name( p, &name, &type, &zone )) {
570 fprintf( stderr, "Can't parse \"%s\"\n", name );
573 if ( name != defprinter.p_name ) {
574 if (( pr->p_name = (char *)malloc( strlen( name ) + 1 )) == NULL ) {
578 strcpy( pr->p_name, name );
582 if ( type != defprinter.p_type ) {
583 if (( pr->p_type = (char *)malloc( strlen( type ) + 1 )) == NULL ) {
587 strcpy( pr->p_type, type );
591 if ( zone != defprinter.p_zone ) {
592 if (( pr->p_zone = (char *)malloc( strlen( zone ) + 1 )) == NULL ) {
596 strcpy( pr->p_zone, zone );
601 if ( pnchktc( cf ) != 1 ) {
602 fprintf( stderr, "Bad papcap entry\n" );
609 if (( p = pgetstr( "pd", &a )) == NULL ) {
610 pr->p_ppdfile = defprinter.p_ppdfile;
612 if (( pr->p_ppdfile = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
616 strcpy( pr->p_ppdfile, p );
620 * Get lpd printer name.
622 if (( p = pgetstr( "pr", &a )) == NULL ) {
623 pr->p_printer = defprinter.p_printer;
624 pr->p_flags = defprinter.p_flags;
628 pr->p_flags = P_PIPED;
630 pr->p_flags = P_SPOOLED;
632 if (( pr->p_printer = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
636 strcpy( pr->p_printer, p );
640 * Do we want authenticated printing?
642 if ((p = pgetstr( "ca", &a )) != NULL ) {
643 if ((pr->p_authprintdir = (char *)malloc(strlen(p)+1)) == NULL) {
647 strcpy( pr->p_authprintdir, p );
648 pr->p_flags |= P_AUTH;
649 pr->p_flags |= P_AUTH_CAP;
650 } else { pr->p_authprintdir = NULL; }
652 if ( pgetflag( "sp" ) == 1 ) {
653 pr->p_flags |= P_AUTH;
654 pr->p_flags |= P_AUTH_PSSP;
657 if ((p = pgetstr("am", &a)) != NULL ) {
658 if ((uamlist = (char *)malloc(strlen(p)+1)) == NULL ) {
665 if ( pr->p_flags & P_SPOOLED ) {
669 if (( p = pgetstr( "op", &a )) == NULL ) {
670 pr->p_operator = defprinter.p_operator;
672 if (( pr->p_operator = (char *)malloc( strlen( p ) + 1 ))
677 strcpy( pr->p_operator, p );
681 /* get printer's appletalk address. */
682 if (( p = pgetstr( "pa", &a )) == NULL )
683 memcpy(&pr->p_addr, &defprinter.p_addr, sizeof(pr->p_addr));
685 atalk_aton(p, &pr->p_addr);
687 pr->p_next = printers;
692 } else { /* No capability file, do default */
693 printers = &defprinter;
700 char buf[ 1024 ], area[ 1024 ], *a, *p;
704 * Spool directory from printcap file.
706 if ( pr->p_flags & P_SPOOLED ) {
707 if ( pgetent( printcap, buf, pr->p_printer ) != 1 ) {
708 syslog( LOG_ERR, "No such printer: %s", pr->p_printer );
715 if ( pr->p_spool != NULL && pr->p_spool != defprinter.p_spool ) {
719 if (( p = pgetstr( "sd", &a )) == NULL ) {
720 pr->p_spool = defprinter.p_spool;
722 if (( pr->p_spool = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
723 syslog( LOG_ERR, "malloc: %m" );
726 strcpy( pr->p_spool, p );
733 if ( pgetstr( "af", &a ) == NULL ) {
734 pr->p_flags &= ~P_ACCOUNT;
736 pr->p_flags |= P_ACCOUNT;
738 if ( pr->p_role != NULL && pr->p_role != defprinter.p_role ) {
742 if (( p = pgetstr( "ro", &a )) == NULL ) {
743 pr->p_role = defprinter.p_role;
746 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
747 syslog( LOG_ERR, "malloc: %m" );
750 strcpy( pr->p_role, p );
753 if (( c = pgetnum( "si" )) < 0 ) {
754 pr->p_srvid = defprinter.p_srvid;
758 #endif /* ABS_PRINT */
765 if ( pr->p_pagecost_msg != NULL &&
766 pr->p_pagecost_msg != defprinter.p_pagecost_msg ) {
767 free( pr->p_pagecost_msg );
770 if (( p = pgetstr( "pc", &a )) != NULL ) {
771 if (( pr->p_pagecost_msg =
772 (char *)malloc( strlen( p ) + 1 )) == NULL ) {
773 syslog( LOG_ERR, "malloc: %m" );
776 strcpy( pr->p_pagecost_msg, p );
778 } else if ( pr->p_flags & P_ACCOUNT ) {
779 if (( c = pgetnum( "pc" )) < 0 ) {
780 pr->p_pagecost = defprinter.p_pagecost;
784 pr->p_pagecost_msg = NULL;
790 if ( pr->p_lock != NULL && pr->p_lock != defprinter.p_lock ) {
794 if (( p = pgetstr( "lo", &a )) == NULL ) {
795 pr->p_lock = defprinter.p_lock;
797 if (( pr->p_lock = (char *)malloc( strlen( p ) + 1 )) == NULL ) {
798 syslog( LOG_ERR, "malloc: %m" );
801 strcpy( pr->p_lock, p );
806 * Must Kerberos authenticate?
808 if ( pgetflag( "ka" ) == 1 ) {
809 pr->p_flags |= P_KRB;
811 pr->p_flags &= ~P_KRB;