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 /* 28 * echo inetd service - both stream and dgram based. 29 */ 30 31 #include <sys/types.h> 32 #include <sys/socket.h> 33 #include <unistd.h> 34 #include <stdio.h> 35 #include <netinet/in.h> 36 #include <inetsvc.h> 37 38 39 static void 40 echo_stream(int s, char *argv[]) 41 { 42 char buffer[BUFSIZ]; 43 int i; 44 45 setproctitle("echo", s, argv); 46 while (((i = read(s, buffer, sizeof (buffer))) > 0) && 47 (safe_write(s, buffer, i) == 0)) { 48 ; 49 } 50 } 51 52 static void 53 echo_dg(int s, const struct sockaddr *sap, int sa_size, const void *buf, 54 size_t bufsiz) 55 { 56 (void) safe_sendto(s, buf, bufsiz, 0, sap, sa_size); 57 } 58 59 60 int 61 main(int argc, char *argv[]) 62 { 63 char buf[BUFSIZ]; 64 65 opterr = 0; /* disable getopt error msgs */ 66 switch (getopt(argc, argv, "ds")) { 67 case 'd': 68 dg_template(echo_dg, STDIN_FILENO, buf, sizeof (buf)); 69 break; 70 case 's': 71 echo_stream(STDIN_FILENO, argv); 72 break; 73 default: 74 return (1); 75 } 76 77 return (0); 78 } 79