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 2004 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 /*
30*0Sstevel@tonic-gate * daytime inetd service - both stream and dgram based.
31*0Sstevel@tonic-gate * Return human-readable time of day.
32*0Sstevel@tonic-gate */
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate #include <sys/types.h>
35*0Sstevel@tonic-gate #include <sys/socket.h>
36*0Sstevel@tonic-gate #include <unistd.h>
37*0Sstevel@tonic-gate #include <stdio.h>
38*0Sstevel@tonic-gate #include <strings.h>
39*0Sstevel@tonic-gate #include <netinet/in.h>
40*0Sstevel@tonic-gate #include <inetsvc.h>
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate
43*0Sstevel@tonic-gate #define TIMEBUF_SIZE 26
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate static const char *
daytime(void)47*0Sstevel@tonic-gate daytime(void)
48*0Sstevel@tonic-gate {
49*0Sstevel@tonic-gate time_t clock;
50*0Sstevel@tonic-gate static char buf[TIMEBUF_SIZE];
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate clock = time(NULL);
53*0Sstevel@tonic-gate (void) strlcpy(buf, ctime(&clock), sizeof (buf));
54*0Sstevel@tonic-gate /*
55*0Sstevel@tonic-gate * Format of ctime is "Fri Sep 13 00:00:00 1986\n\0". To conform to the
56*0Sstevel@tonic-gate * required format as specified in RFCs 867 and 854 we replace the
57*0Sstevel@tonic-gate * "\n\0" with "\r\n".
58*0Sstevel@tonic-gate */
59*0Sstevel@tonic-gate buf[TIMEBUF_SIZE - 2] = '\r';
60*0Sstevel@tonic-gate buf[TIMEBUF_SIZE - 1] = '\n';
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate return (buf);
63*0Sstevel@tonic-gate }
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate /* ARGSUSED3 */
66*0Sstevel@tonic-gate static void
daytime_dg(int s,const struct sockaddr * sap,int sa_size,const void * buf,size_t sz)67*0Sstevel@tonic-gate daytime_dg(int s, const struct sockaddr *sap, int sa_size, const void *buf,
68*0Sstevel@tonic-gate size_t sz)
69*0Sstevel@tonic-gate {
70*0Sstevel@tonic-gate (void) safe_sendto(s, daytime(), TIMEBUF_SIZE, 0, sap, sa_size);
71*0Sstevel@tonic-gate }
72*0Sstevel@tonic-gate
73*0Sstevel@tonic-gate int
main(int argc,char * argv[])74*0Sstevel@tonic-gate main(int argc, char *argv[])
75*0Sstevel@tonic-gate {
76*0Sstevel@tonic-gate opterr = 0; /* disable getopt error msgs */
77*0Sstevel@tonic-gate switch (getopt(argc, argv, "ds")) {
78*0Sstevel@tonic-gate case 'd':
79*0Sstevel@tonic-gate dg_template(daytime_dg, STDIN_FILENO, NULL, 0);
80*0Sstevel@tonic-gate break;
81*0Sstevel@tonic-gate case 's':
82*0Sstevel@tonic-gate (void) safe_write(STDIN_FILENO, daytime(), TIMEBUF_SIZE);
83*0Sstevel@tonic-gate break;
84*0Sstevel@tonic-gate default:
85*0Sstevel@tonic-gate return (1);
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate return (0);
89*0Sstevel@tonic-gate }
90