1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * echo inetd service - both stream and dgram based.
31 */
32
33 #include <sys/types.h>
34 #include <sys/socket.h>
35 #include <unistd.h>
36 #include <stdio.h>
37 #include <netinet/in.h>
38 #include <inetsvc.h>
39
40
41 static void
echo_stream(int s,char * argv[])42 echo_stream(int s, char *argv[])
43 {
44 char buffer[BUFSIZ];
45 int i;
46
47 setproctitle("echo", s, argv);
48 while (((i = read(s, buffer, sizeof (buffer))) > 0) &&
49 (safe_write(s, buffer, i) == 0)) {
50 ;
51 }
52 }
53
54 static void
echo_dg(int s,const struct sockaddr * sap,int sa_size,const void * buf,size_t bufsiz)55 echo_dg(int s, const struct sockaddr *sap, int sa_size, const void *buf,
56 size_t bufsiz)
57 {
58 (void) safe_sendto(s, buf, bufsiz, 0, sap, sa_size);
59 }
60
61
62 int
main(int argc,char * argv[])63 main(int argc, char *argv[])
64 {
65 char buf[BUFSIZ];
66
67 opterr = 0; /* disable getopt error msgs */
68 switch (getopt(argc, argv, "ds")) {
69 case 'd':
70 dg_template(echo_dg, STDIN_FILENO, buf, sizeof (buf));
71 break;
72 case 's':
73 echo_stream(STDIN_FILENO, argv);
74 break;
75 default:
76 return (1);
77 }
78
79 return (0);
80 }
81