xref: /onnv-gate/usr/src/cmd/lp/model/netpr/netpr.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1996-2002 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <libintl.h>
32*0Sstevel@tonic-gate #include <locale.h>
33*0Sstevel@tonic-gate #include <signal.h>
34*0Sstevel@tonic-gate #include <errno.h>
35*0Sstevel@tonic-gate #include <string.h>
36*0Sstevel@tonic-gate #include <unistd.h>
37*0Sstevel@tonic-gate #include <sys/mman.h>
38*0Sstevel@tonic-gate #include <sys/socket.h>
39*0Sstevel@tonic-gate #include <fcntl.h>
40*0Sstevel@tonic-gate #include <syslog.h>
41*0Sstevel@tonic-gate #include "netpr.h"
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate static void usage_exit();
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate static void pipehandler(int);
46*0Sstevel@tonic-gate char data_file_type = 0;
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate main(int argc, char *argv[])
49*0Sstevel@tonic-gate {
50*0Sstevel@tonic-gate 	extern char *optarg;
51*0Sstevel@tonic-gate 	extern int optind;
52*0Sstevel@tonic-gate 	int opt;
53*0Sstevel@tonic-gate 	np_job_t *job_data;
54*0Sstevel@tonic-gate 	char *destination = NULL;
55*0Sstevel@tonic-gate 	np_bsdjob_t *bsdjob;
56*0Sstevel@tonic-gate 	np_tcpjob_t *tcpjob;
57*0Sstevel@tonic-gate 	int sockfd;
58*0Sstevel@tonic-gate 	int pr_order = CONTROL_FIRST;
59*0Sstevel@tonic-gate 	char *vendor_pr_name = NULL;
60*0Sstevel@tonic-gate 	char *tcp_port = NULL;
61*0Sstevel@tonic-gate 	size_t filesize;
62*0Sstevel@tonic-gate 	int fd;
63*0Sstevel@tonic-gate 	caddr_t pa;
64*0Sstevel@tonic-gate 	int jobstatus;
65*0Sstevel@tonic-gate 	int exit_status = 0;
66*0Sstevel@tonic-gate 	int on = 1;
67*0Sstevel@tonic-gate 
68*0Sstevel@tonic-gate 
69*0Sstevel@tonic-gate 	(void) setlocale(LC_ALL, "");
70*0Sstevel@tonic-gate #if	!defined(TEXT_DOMAIN)   /* Should be defined by cc -D */
71*0Sstevel@tonic-gate #define	TEXT_DOMAIN "SYS_TEST"  /* Use this only if it weren't */
72*0Sstevel@tonic-gate #endif
73*0Sstevel@tonic-gate 	(void) textdomain(TEXT_DOMAIN);
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate 	openlog("netpr", LOG_PID, LOG_LPR);
76*0Sstevel@tonic-gate 	(void) signal(SIGPIPE, pipehandler);
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate 	/* reduce privileges until needed to open reserved port */
79*0Sstevel@tonic-gate 	if (seteuid(getuid())) {
80*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "seteuid failed, exiting netpr");
81*0Sstevel@tonic-gate 		exit(E_FAILURE);
82*0Sstevel@tonic-gate 	}
83*0Sstevel@tonic-gate 
84*0Sstevel@tonic-gate 	if ((job_data = init_job()) == NULL) {
85*0Sstevel@tonic-gate 		fprintf(stderr, gettext("init_job(): out of memory\n"));
86*0Sstevel@tonic-gate 		exit(E_RETRY);
87*0Sstevel@tonic-gate 	}
88*0Sstevel@tonic-gate 
89*0Sstevel@tonic-gate 	while ((opt = getopt(argc, argv, "f:I:p:d:T:P:t:U:c:b")) != EOF)
90*0Sstevel@tonic-gate 		switch (opt) {
91*0Sstevel@tonic-gate 		case 'f':
92*0Sstevel@tonic-gate 			data_file_type = optarg[0];
93*0Sstevel@tonic-gate 			break;
94*0Sstevel@tonic-gate 		case 'I': /* foo-49 */
95*0Sstevel@tonic-gate 			job_data->request_id = alloc_str((char *)optarg);
96*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "request_id: %s",
97*0Sstevel@tonic-gate 				job_data->request_id);
98*0Sstevel@tonic-gate 			break;
99*0Sstevel@tonic-gate 		case 'U': /* awe172-126!wendyp */
100*0Sstevel@tonic-gate 			job_data->username = alloc_str((char *)optarg);
101*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "username: %s",
102*0Sstevel@tonic-gate 				job_data->username);
103*0Sstevel@tonic-gate 			break;
104*0Sstevel@tonic-gate 		case 'p': /* foo */
105*0Sstevel@tonic-gate 			job_data->printer = alloc_str((char *)optarg);
106*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "printer: %s",
107*0Sstevel@tonic-gate 				job_data->printer);
108*0Sstevel@tonic-gate 			break;
109*0Sstevel@tonic-gate 		case 'd': /* server for printer */
110*0Sstevel@tonic-gate 			job_data->dest = alloc_str((char *)optarg);
111*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "dest: %s",
112*0Sstevel@tonic-gate 				job_data->dest);
113*0Sstevel@tonic-gate 			break;
114*0Sstevel@tonic-gate 		case 'T': /* /tmp/file2 */
115*0Sstevel@tonic-gate 			job_data->title = alloc_str((char *)optarg);
116*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "title: %s",
117*0Sstevel@tonic-gate 				job_data->title);
118*0Sstevel@tonic-gate 			break;
119*0Sstevel@tonic-gate 		case 'P':
120*0Sstevel@tonic-gate 			if ((strcmp(optarg, "bsd")) == 0)
121*0Sstevel@tonic-gate 				job_data->protocol = BSD;
122*0Sstevel@tonic-gate 			else if ((strcmp(optarg, "tcp")) == 0)
123*0Sstevel@tonic-gate 				job_data->protocol = TCP;
124*0Sstevel@tonic-gate 			else
125*0Sstevel@tonic-gate 				usage_exit();
126*0Sstevel@tonic-gate 
127*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "protocol: %d",
128*0Sstevel@tonic-gate 				job_data->protocol);
129*0Sstevel@tonic-gate 			break;
130*0Sstevel@tonic-gate 		case 't':
131*0Sstevel@tonic-gate 			job_data->timeout = atoi(optarg);
132*0Sstevel@tonic-gate 			if (job_data->timeout < 0)
133*0Sstevel@tonic-gate 				usage_exit();
134*0Sstevel@tonic-gate 			break;
135*0Sstevel@tonic-gate 		case 'c':
136*0Sstevel@tonic-gate 			if ((strcmp(optarg, "first")) == 0)
137*0Sstevel@tonic-gate 				pr_order = CONTROL_FIRST;
138*0Sstevel@tonic-gate 			else if ((strcmp(optarg, "last")) == 0)
139*0Sstevel@tonic-gate 				pr_order = DATA_FIRST;
140*0Sstevel@tonic-gate 			else
141*0Sstevel@tonic-gate 				usage_exit();
142*0Sstevel@tonic-gate 
143*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "bsd print order: %d", pr_order);
144*0Sstevel@tonic-gate 			break;
145*0Sstevel@tonic-gate 		case 'b':
146*0Sstevel@tonic-gate 			job_data->banner = NOBANNER;
147*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "banner : %d",
148*0Sstevel@tonic-gate 				job_data->banner);
149*0Sstevel@tonic-gate 			break;
150*0Sstevel@tonic-gate 		case '?':
151*0Sstevel@tonic-gate 			usage_exit();
152*0Sstevel@tonic-gate 		}
153*0Sstevel@tonic-gate 
154*0Sstevel@tonic-gate 
155*0Sstevel@tonic-gate 	if ((job_data->dest == NULL) || (job_data->request_id == NULL) ||
156*0Sstevel@tonic-gate 		(job_data->printer == NULL) || (job_data->username == NULL))
157*0Sstevel@tonic-gate 		usage_exit();
158*0Sstevel@tonic-gate 
159*0Sstevel@tonic-gate 	/*
160*0Sstevel@tonic-gate 	 * Check that there is a file
161*0Sstevel@tonic-gate 	 */
162*0Sstevel@tonic-gate 	if (optind == argc) {
163*0Sstevel@tonic-gate 		usage_exit();
164*0Sstevel@tonic-gate 	}
165*0Sstevel@tonic-gate 
166*0Sstevel@tonic-gate 	job_data->filename = alloc_str(argv[optind]);
167*0Sstevel@tonic-gate 	syslog(LOG_DEBUG, "filename : %s", job_data->filename);
168*0Sstevel@tonic-gate 
169*0Sstevel@tonic-gate 
170*0Sstevel@tonic-gate 	/*
171*0Sstevel@tonic-gate 	 * Sanity check the file
172*0Sstevel@tonic-gate 	 * returns filesize
173*0Sstevel@tonic-gate 	 */
174*0Sstevel@tonic-gate 
175*0Sstevel@tonic-gate 	if ((filesize = check_file(job_data->filename)) == -1) {
176*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "Skipping file %s",
177*0Sstevel@tonic-gate 		job_data->filename ? job_data->filename : "Error NULL file");
178*0Sstevel@tonic-gate 
179*0Sstevel@tonic-gate 		switch (errno) {
180*0Sstevel@tonic-gate 		case EISDIR:
181*0Sstevel@tonic-gate 			(void) fprintf(stderr,
182*0Sstevel@tonic-gate 			gettext("Netpr: %s: Not a regular file\n"),
183*0Sstevel@tonic-gate 			(job_data->filename ? job_data->filename : "Noname"));
184*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "Not a regular file");
185*0Sstevel@tonic-gate 			break;
186*0Sstevel@tonic-gate 		case ESRCH:
187*0Sstevel@tonic-gate 			(void) fprintf(stderr,
188*0Sstevel@tonic-gate 			gettext("Netpr: %s: Empty file\n"),
189*0Sstevel@tonic-gate 			(job_data->filename ? job_data->filename : "Noname"));
190*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "Empty file");
191*0Sstevel@tonic-gate 			break;
192*0Sstevel@tonic-gate 		default:
193*0Sstevel@tonic-gate 			perror(job_data->filename);
194*0Sstevel@tonic-gate 			(void) fprintf(stderr,
195*0Sstevel@tonic-gate 			gettext("Netpr: Cannot access file %s\n"),
196*0Sstevel@tonic-gate 			(job_data->filename ? job_data->filename : "Noname"));
197*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "Cannot access file.");
198*0Sstevel@tonic-gate 			break;
199*0Sstevel@tonic-gate 
200*0Sstevel@tonic-gate 		}
201*0Sstevel@tonic-gate 
202*0Sstevel@tonic-gate 		/*
203*0Sstevel@tonic-gate 		 * This file not valid, so bail
204*0Sstevel@tonic-gate 		 * Exit with zero so system will keep printing
205*0Sstevel@tonic-gate 		 */
206*0Sstevel@tonic-gate 		exit(0);
207*0Sstevel@tonic-gate 	}
208*0Sstevel@tonic-gate 
209*0Sstevel@tonic-gate 	/*
210*0Sstevel@tonic-gate 	 * file looks ok, open and mmap it
211*0Sstevel@tonic-gate 	 */
212*0Sstevel@tonic-gate 	if ((fd = open(job_data->filename, O_RDONLY)) < 0) {
213*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("Netpr: Cannot open file %s\n"),
214*0Sstevel@tonic-gate 		(job_data->filename ? job_data->filename : "Error: NULL file"));
215*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "Cannot open file: %s",
216*0Sstevel@tonic-gate 		job_data->filename ? job_data->filename : "Error NULL file");
217*0Sstevel@tonic-gate 		exit(E_BAD_FILE);
218*0Sstevel@tonic-gate 	}
219*0Sstevel@tonic-gate 
220*0Sstevel@tonic-gate 	if ((pa = mmap((caddr_t)0, filesize, PROT_READ,
221*0Sstevel@tonic-gate 		(MAP_SHARED | MAP_NORESERVE), fd, (off_t)0)) == MAP_FAILED) {
222*0Sstevel@tonic-gate 
223*0Sstevel@tonic-gate 		(void) close(fd);
224*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("Netpr: Cannot mmap file %s"),
225*0Sstevel@tonic-gate 		(job_data->filename ? job_data->filename : "Error: NULL file"));
226*0Sstevel@tonic-gate 
227*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "Cannot mmap file: %s",
228*0Sstevel@tonic-gate 		job_data->filename ? job_data->filename : "Error NULL file");
229*0Sstevel@tonic-gate 
230*0Sstevel@tonic-gate 		exit(E_RETRY);
231*0Sstevel@tonic-gate 	}
232*0Sstevel@tonic-gate 
233*0Sstevel@tonic-gate 
234*0Sstevel@tonic-gate 	if (job_data->protocol == BSD) {
235*0Sstevel@tonic-gate 		bsdjob = (np_bsdjob_t *)
236*0Sstevel@tonic-gate 			create_bsd_job(job_data, pr_order, filesize);
237*0Sstevel@tonic-gate 		if (bsdjob == NULL)
238*0Sstevel@tonic-gate 			exit(E_FAILURE);
239*0Sstevel@tonic-gate 	} else {
240*0Sstevel@tonic-gate 		tcpjob = (np_tcpjob_t *)create_tcp_job(job_data, filesize);
241*0Sstevel@tonic-gate 		if (tcpjob == NULL)
242*0Sstevel@tonic-gate 			exit(E_FAILURE);
243*0Sstevel@tonic-gate 	}
244*0Sstevel@tonic-gate 
245*0Sstevel@tonic-gate 	/*
246*0Sstevel@tonic-gate 	 * Parse destination
247*0Sstevel@tonic-gate 	 */
248*0Sstevel@tonic-gate 
249*0Sstevel@tonic-gate 	if ((strpbrk(job_data->dest, DEST_SEP)) != NULL) {
250*0Sstevel@tonic-gate 		if (job_data->protocol == BSD) {
251*0Sstevel@tonic-gate 			parse_dest(job_data->dest, &destination,
252*0Sstevel@tonic-gate 				&vendor_pr_name, DEST_SEP);
253*0Sstevel@tonic-gate 			if (vendor_pr_name != NULL) {
254*0Sstevel@tonic-gate 				bsdjob->np_printer = vendor_pr_name;
255*0Sstevel@tonic-gate 				syslog(LOG_DEBUG, "bsd vendor name: %s",
256*0Sstevel@tonic-gate 					bsdjob->np_printer);
257*0Sstevel@tonic-gate 			}
258*0Sstevel@tonic-gate 		} else {
259*0Sstevel@tonic-gate 			parse_dest(job_data->dest, &destination, &tcp_port,
260*0Sstevel@tonic-gate 				DEST_SEP);
261*0Sstevel@tonic-gate 			if (tcp_port != NULL)
262*0Sstevel@tonic-gate 				tcpjob->np_port = tcp_port;
263*0Sstevel@tonic-gate 				syslog(LOG_DEBUG, "tcp_port %s",
264*0Sstevel@tonic-gate 					tcpjob->np_port);
265*0Sstevel@tonic-gate 		}
266*0Sstevel@tonic-gate 		if (destination == NULL ||
267*0Sstevel@tonic-gate 			(job_data->protocol == TCP && tcp_port == NULL)) {
268*0Sstevel@tonic-gate 		    (void) fprintf(stderr,
269*0Sstevel@tonic-gate 		    gettext("Netpr: system error parsing destination %s\n"),
270*0Sstevel@tonic-gate 		    job_data->dest);
271*0Sstevel@tonic-gate 		    syslog(LOG_DEBUG, "system error parsing destination %s",
272*0Sstevel@tonic-gate 			job_data->dest);
273*0Sstevel@tonic-gate 
274*0Sstevel@tonic-gate 		    exit(E_FAILURE);
275*0Sstevel@tonic-gate 		}
276*0Sstevel@tonic-gate 
277*0Sstevel@tonic-gate 	} else {
278*0Sstevel@tonic-gate 		destination = job_data->dest;
279*0Sstevel@tonic-gate 	}
280*0Sstevel@tonic-gate 	syslog(LOG_DEBUG, "destination : %s", destination);
281*0Sstevel@tonic-gate 
282*0Sstevel@tonic-gate 	/*
283*0Sstevel@tonic-gate 	 * We are now ready to open a connection to the printer
284*0Sstevel@tonic-gate 	 * and print each of the files
285*0Sstevel@tonic-gate 	 */
286*0Sstevel@tonic-gate 
287*0Sstevel@tonic-gate 	if (job_data->protocol == BSD) {
288*0Sstevel@tonic-gate 
289*0Sstevel@tonic-gate 		/* set privileges to get reserved port */
290*0Sstevel@tonic-gate 		if (seteuid(0)) {
291*0Sstevel@tonic-gate 			syslog(LOG_DEBUG, "seteuid(0) failed, exiting netpr");
292*0Sstevel@tonic-gate 			exit(E_FAILURE);
293*0Sstevel@tonic-gate 		}
294*0Sstevel@tonic-gate 		if ((sockfd =  net_open(destination, 20)) < 0) {
295*0Sstevel@tonic-gate 			(void) fprintf(stderr,
296*0Sstevel@tonic-gate 			    gettext("Netpr: Cannot open connection to <%s>\n"),
297*0Sstevel@tonic-gate 			    destination);
298*0Sstevel@tonic-gate 			    syslog(LOG_DEBUG,
299*0Sstevel@tonic-gate 				"Cannot open connection to %s: retrying",
300*0Sstevel@tonic-gate 				destination);
301*0Sstevel@tonic-gate 			exit(E_RETRY);
302*0Sstevel@tonic-gate 		}
303*0Sstevel@tonic-gate 	} else {
304*0Sstevel@tonic-gate 		if ((sockfd = tcp_open(destination, tcpjob, 20)) == -1) {
305*0Sstevel@tonic-gate 			exit(E_RETRY);
306*0Sstevel@tonic-gate 		}
307*0Sstevel@tonic-gate 	}
308*0Sstevel@tonic-gate 
309*0Sstevel@tonic-gate 	/* lower privileges as we now have the reserved port */
310*0Sstevel@tonic-gate 	if (setuid(getuid())) {
311*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "setuid() failed, exiting netpr");
312*0Sstevel@tonic-gate 		exit(E_FAILURE);
313*0Sstevel@tonic-gate 	}
314*0Sstevel@tonic-gate 
315*0Sstevel@tonic-gate 
316*0Sstevel@tonic-gate 	/* Set SO_KEEPALIVE on socket to keep open */
317*0Sstevel@tonic-gate 	if ((setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE,
318*0Sstevel@tonic-gate 			(char *)&on, sizeof (on))) < 0) {
319*0Sstevel@tonic-gate 		syslog(LOG_DEBUG, "setsocket (SO_KEEPALIVE): %m");
320*0Sstevel@tonic-gate 	}
321*0Sstevel@tonic-gate 
322*0Sstevel@tonic-gate 	if (job_data->protocol == BSD) {
323*0Sstevel@tonic-gate 		if ((jobstatus = bsd_print(sockfd, pa,  bsdjob)) != 0) {
324*0Sstevel@tonic-gate 			(void) fprintf(stderr,
325*0Sstevel@tonic-gate 			gettext("Netpr: Error return from bsd_print <%d>\n"),
326*0Sstevel@tonic-gate 			jobstatus);
327*0Sstevel@tonic-gate 			syslog(LOG_DEBUG,
328*0Sstevel@tonic-gate 				"Error return from bsd_print <%d>", jobstatus);
329*0Sstevel@tonic-gate 			exit_status = E_RETRY;
330*0Sstevel@tonic-gate 		}
331*0Sstevel@tonic-gate 	} else {
332*0Sstevel@tonic-gate 		if ((jobstatus =
333*0Sstevel@tonic-gate 			tcp_print(sockfd, pa, tcpjob)) != 0) {
334*0Sstevel@tonic-gate 			(void) fprintf(stderr,
335*0Sstevel@tonic-gate 			gettext("Netpr: Error return from tcp_print <%d>\n"),
336*0Sstevel@tonic-gate 			jobstatus);
337*0Sstevel@tonic-gate 			syslog(LOG_DEBUG,
338*0Sstevel@tonic-gate 				"Error return from tcp_print <%d>", jobstatus);
339*0Sstevel@tonic-gate 			exit_status = E_RETRY;
340*0Sstevel@tonic-gate 		}
341*0Sstevel@tonic-gate 	}
342*0Sstevel@tonic-gate 
343*0Sstevel@tonic-gate 	(void) close(fd);
344*0Sstevel@tonic-gate 	(void) close(sockfd);
345*0Sstevel@tonic-gate 	(void) munmap(pa, filesize);
346*0Sstevel@tonic-gate 
347*0Sstevel@tonic-gate 	syslog(LOG_DEBUG, "exit status: %d", exit_status);
348*0Sstevel@tonic-gate 	return (exit_status);
349*0Sstevel@tonic-gate }
350*0Sstevel@tonic-gate 
351*0Sstevel@tonic-gate static void
352*0Sstevel@tonic-gate usage_exit()
353*0Sstevel@tonic-gate {
354*0Sstevel@tonic-gate 	(void) fprintf(stderr,
355*0Sstevel@tonic-gate 	gettext("Usage: netpr -I request_id -p printer -d destination\n"));
356*0Sstevel@tonic-gate 	(void) fprintf(stderr,
357*0Sstevel@tonic-gate 	gettext("\t\t-U username [ -f type ] [ -T title ] [ -P protocol ]\n"));
358*0Sstevel@tonic-gate 	(void) fprintf(stderr,
359*0Sstevel@tonic-gate 	    gettext("\t\t[-t timeout] [ -c ] [ -b ]\n"));
360*0Sstevel@tonic-gate 	(void) fprintf(stderr, gettext("\t\tfiles\n"));
361*0Sstevel@tonic-gate 	exit(E_BAD_INPUT);
362*0Sstevel@tonic-gate }
363*0Sstevel@tonic-gate 
364*0Sstevel@tonic-gate /*ARGSUSED*/
365*0Sstevel@tonic-gate void
366*0Sstevel@tonic-gate pipehandler(int i)
367*0Sstevel@tonic-gate {
368*0Sstevel@tonic-gate 	(void) signal(SIGPIPE, pipehandler);
369*0Sstevel@tonic-gate 	syslog(LOG_DEBUG, "Received SIGPIPE, connection to printer broken");
370*0Sstevel@tonic-gate 	exit(E_SIGPIPE);
371*0Sstevel@tonic-gate }
372