getopt.c
1 /* 2 Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 3 The DragonFly Project. All rights reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions 7 are met: 8 9 1. Redistributions of source code must retain the above copyright 10 notice, this list of conditions and the following disclaimer. 11 2. Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in 13 the documentation and/or other materials provided with the 14 distribution. 15 3. Neither the name of The DragonFly Project nor the names of its 16 contributors may be used to endorse or promote products derived 17 from this software without specific, prior written permission. 18 19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27 AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 29 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 SUCH DAMAGE. 31 */ 32 33 /* $FreeBSD: src/usr.bin/getopt/getopt.c,v 1.4.2.2 2001/07/30 10:16:38 dd Exp $ */ 34 /* $DragonFly: src/usr.bin/getopt/getopt.c,v 1.4 2004/10/23 13:33:36 eirikn Exp $ */ 35 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <unistd.h> 39 40 int 41 main(int argc, char **argv) 42 { 43 int c; 44 int status = 0; 45 46 optind = 2; /* Past the program name and the option letters. */ 47 while ((c = getopt(argc, argv, argv[1])) != -1) 48 switch (c) { 49 case '?': 50 status = 1; /* getopt routine gave message */ 51 break; 52 default: 53 if (optarg != NULL) 54 printf(" -%c %s", c, optarg); 55 else 56 printf(" -%c", c); 57 break; 58 } 59 printf(" --"); 60 for (; optind < argc; optind++) 61 printf(" %s", argv[optind]); 62 printf("\n"); 63 return(status); 64 }