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 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 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 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