1 /* $NetBSD: echo.c,v 1.18 2008/09/18 05:42:08 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT( 35 "@(#) Copyright (c) 1989, 1993\ 36 The Regents of the University of California. All rights reserved."); 37 #endif /* not lint */ 38 39 #ifndef lint 40 #if 0 41 static char sccsid[] = "@(#)echo.c 8.1 (Berkeley) 5/31/93"; 42 #else 43 __RCSID("$NetBSD: echo.c,v 1.18 2008/09/18 05:42:08 dholland Exp $"); 44 #endif 45 #endif /* not lint */ 46 47 #include <locale.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 int main(int, char *[]); 53 54 /* ARGSUSED */ 55 int 56 main(int argc, char *argv[]) 57 { 58 int nflag; 59 60 setprogname(argv[0]); 61 (void)setlocale(LC_ALL, ""); 62 63 /* This utility may NOT do getopt(3) option parsing. */ 64 if (*++argv && !strcmp(*argv, "-n")) { 65 ++argv; 66 nflag = 1; 67 } 68 else 69 nflag = 0; 70 71 while (*argv) { 72 (void)printf("%s", *argv); 73 if (*++argv) 74 (void)putchar(' '); 75 } 76 if (nflag == 0) 77 (void)putchar('\n'); 78 fflush(stdout); 79 if (ferror(stdout)) 80 exit(1); 81 exit(0); 82 /* NOTREACHED */ 83 } 84