1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright (c) 1987, 1993, 1994 3*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 4*0Sstevel@tonic-gate * 5*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 6*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 7*0Sstevel@tonic-gate * are met: 8*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 9*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 10*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 11*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 12*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 13*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 14*0Sstevel@tonic-gate * must display the following acknowledgement: 15*0Sstevel@tonic-gate * This product includes software developed by the University of 16*0Sstevel@tonic-gate * California, Berkeley and its contributors. 17*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 18*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 19*0Sstevel@tonic-gate * without specific prior written permission. 20*0Sstevel@tonic-gate * 21*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31*0Sstevel@tonic-gate * SUCH DAMAGE. 32*0Sstevel@tonic-gate */ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include "includes.h" 35*0Sstevel@tonic-gate #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 38*0Sstevel@tonic-gate static char *rcsid = "$OpenBSD: getopt.c,v 1.2 1996/08/19 08:33:32 tholo Exp $"; 39*0Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #include <stdio.h> 42*0Sstevel@tonic-gate #include <stdlib.h> 43*0Sstevel@tonic-gate #include <string.h> 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate int BSDopterr = 1, /* if error message should be printed */ 46*0Sstevel@tonic-gate BSDoptind = 1, /* index into parent argv vector */ 47*0Sstevel@tonic-gate BSDoptopt, /* character checked for validity */ 48*0Sstevel@tonic-gate BSDoptreset; /* reset getopt */ 49*0Sstevel@tonic-gate char *BSDoptarg; /* argument associated with option */ 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate #define BADCH (int)'?' 52*0Sstevel@tonic-gate #define BADARG (int)':' 53*0Sstevel@tonic-gate #define EMSG "" 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate /* 56*0Sstevel@tonic-gate * getopt -- 57*0Sstevel@tonic-gate * Parse argc/argv argument vector. 58*0Sstevel@tonic-gate */ 59*0Sstevel@tonic-gate int 60*0Sstevel@tonic-gate BSDgetopt(nargc, nargv, ostr) 61*0Sstevel@tonic-gate int nargc; 62*0Sstevel@tonic-gate char * const *nargv; 63*0Sstevel@tonic-gate const char *ostr; 64*0Sstevel@tonic-gate { 65*0Sstevel@tonic-gate extern char *__progname; 66*0Sstevel@tonic-gate static char *place = EMSG; /* option letter processing */ 67*0Sstevel@tonic-gate char *oli; /* option letter list index */ 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate if (BSDoptreset || !*place) { /* update scanning pointer */ 70*0Sstevel@tonic-gate BSDoptreset = 0; 71*0Sstevel@tonic-gate if (BSDoptind >= nargc || *(place = nargv[BSDoptind]) != '-') { 72*0Sstevel@tonic-gate place = EMSG; 73*0Sstevel@tonic-gate return (-1); 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate if (place[1] && *++place == '-') { /* found "--" */ 76*0Sstevel@tonic-gate ++BSDoptind; 77*0Sstevel@tonic-gate place = EMSG; 78*0Sstevel@tonic-gate return (-1); 79*0Sstevel@tonic-gate } 80*0Sstevel@tonic-gate } /* option letter okay? */ 81*0Sstevel@tonic-gate if ((BSDoptopt = (int)*place++) == (int)':' || 82*0Sstevel@tonic-gate !(oli = strchr(ostr, BSDoptopt))) { 83*0Sstevel@tonic-gate /* 84*0Sstevel@tonic-gate * if the user didn't specify '-' as an option, 85*0Sstevel@tonic-gate * assume it means -1. 86*0Sstevel@tonic-gate */ 87*0Sstevel@tonic-gate if (BSDoptopt == (int)'-') 88*0Sstevel@tonic-gate return (-1); 89*0Sstevel@tonic-gate if (!*place) 90*0Sstevel@tonic-gate ++BSDoptind; 91*0Sstevel@tonic-gate if (BSDopterr && *ostr != ':') 92*0Sstevel@tonic-gate (void)fprintf(stderr, 93*0Sstevel@tonic-gate "%s: illegal option -- %c\n", __progname, BSDoptopt); 94*0Sstevel@tonic-gate return (BADCH); 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate if (*++oli != ':') { /* don't need argument */ 97*0Sstevel@tonic-gate BSDoptarg = NULL; 98*0Sstevel@tonic-gate if (!*place) 99*0Sstevel@tonic-gate ++BSDoptind; 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate else { /* need an argument */ 102*0Sstevel@tonic-gate if (*place) /* no white space */ 103*0Sstevel@tonic-gate BSDoptarg = place; 104*0Sstevel@tonic-gate else if (nargc <= ++BSDoptind) { /* no arg */ 105*0Sstevel@tonic-gate place = EMSG; 106*0Sstevel@tonic-gate if (*ostr == ':') 107*0Sstevel@tonic-gate return (BADARG); 108*0Sstevel@tonic-gate if (BSDopterr) 109*0Sstevel@tonic-gate (void)fprintf(stderr, 110*0Sstevel@tonic-gate "%s: option requires an argument -- %c\n", 111*0Sstevel@tonic-gate __progname, BSDoptopt); 112*0Sstevel@tonic-gate return (BADCH); 113*0Sstevel@tonic-gate } 114*0Sstevel@tonic-gate else /* white space */ 115*0Sstevel@tonic-gate BSDoptarg = nargv[BSDoptind]; 116*0Sstevel@tonic-gate place = EMSG; 117*0Sstevel@tonic-gate ++BSDoptind; 118*0Sstevel@tonic-gate } 119*0Sstevel@tonic-gate return (BSDoptopt); /* dump back option letter */ 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate #endif /* !defined(HAVE_GETOPT) || !defined(HAVE_OPTRESET) */ 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 125