278 lines
10 KiB
C
278 lines
10 KiB
C
/*
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* The copyright in this software is being made available under the 3-clauses
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* BSD License, included below. This software may be subject to other third
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* party and contributor rights, including patent rights, and no such rights
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* are granted under this license.
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*
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* Copyright (c) 1987, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* last review : october 29th, 2002 */
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)opj_getopt.c 8.3 (Berkeley) 4/27/95";
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#endif /* LIBC_SCCS and not lint */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "opj_getopt.h"
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int opj_opterr = 1, /* if error message should be printed */
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opj_optind = 1, /* index into parent argv vector */
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opj_optopt, /* character checked for validity */
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opj_optreset; /* reset getopt */
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char *opj_optarg; /* argument associated with option */
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#define BADCH (int)'?'
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#define BADARG (int)':'
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static char EMSG[] = {""};
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/* As this class remembers its values from one Java call to the other, reset the values before each use */
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void opj_reset_options_reading(void)
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{
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opj_opterr = 1;
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opj_optind = 1;
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}
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/*
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* getopt --
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* Parse argc/argv argument vector.
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*/
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int opj_getopt(int nargc, char *const *nargv, const char *ostr)
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{
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# define __progname nargv[0]
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static char *place = EMSG; /* option letter processing */
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const char *oli = NULL; /* option letter list index */
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if (opj_optreset || !*place) { /* update scanning pointer */
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opj_optreset = 0;
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if (opj_optind >= nargc || *(place = nargv[opj_optind]) != '-') {
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place = EMSG;
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return (-1);
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}
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if (place[1] && *++place == '-') { /* found "--" */
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++opj_optind;
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place = EMSG;
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return (-1);
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}
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} /* option letter okay? */
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if ((opj_optopt = (int) * place++) == (int) ':' ||
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!(oli = strchr(ostr, opj_optopt))) {
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/*
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* if the user didn't specify '-' as an option,
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* assume it means -1.
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*/
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if (opj_optopt == (int) '-') {
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return (-1);
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}
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if (!*place) {
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++opj_optind;
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}
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if (opj_opterr && *ostr != ':') {
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fprintf(stderr,
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"%s: illegal option -- %c\n", __progname, opj_optopt);
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return (BADCH);
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}
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}
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if (*++oli != ':') { /* don't need argument */
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opj_optarg = NULL;
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if (!*place) {
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++opj_optind;
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}
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} else { /* need an argument */
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if (*place) { /* no white space */
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opj_optarg = place;
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} else if (nargc <= ++opj_optind) { /* no arg */
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place = EMSG;
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if (*ostr == ':') {
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return (BADARG);
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}
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if (opj_opterr) {
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fprintf(stderr,
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"%s: option requires an argument -- %c\n",
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__progname, opj_optopt);
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return (BADCH);
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}
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} else { /* white space */
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opj_optarg = nargv[opj_optind];
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}
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place = EMSG;
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++opj_optind;
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}
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return (opj_optopt); /* dump back option letter */
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}
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int opj_getopt_long(int argc, char * const argv[], const char *optstring,
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const opj_option_t *longopts, int totlen)
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{
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static int lastidx, lastofs;
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const char *tmp;
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int i, len;
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char param = 1;
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again:
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if (opj_optind >= argc || !argv[opj_optind] || *argv[opj_optind] != '-') {
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return -1;
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}
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if (argv[opj_optind][0] == '-' && argv[opj_optind][1] == 0) {
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if (opj_optind >= (argc - 1)) { /* no more input parameters */
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param = 0;
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} else { /* more input parameters */
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if (argv[opj_optind + 1][0] == '-') {
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param = 0; /* Missing parameter after '-' */
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} else {
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param = 2;
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}
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}
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}
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if (param == 0) {
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++opj_optind;
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return (BADCH);
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}
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if (argv[opj_optind][0] == '-') { /* long option */
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char* arg;
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const opj_option_t* o;
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o = longopts;
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len = sizeof(longopts[0]);
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if (param > 1) {
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if (opj_optind + 1 >= argc) {
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return -1;
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}
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arg = argv[opj_optind + 1];
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opj_optind++;
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} else {
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arg = argv[opj_optind] + 1;
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}
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if (strlen(arg) > 1) {
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for (i = 0; i < totlen; i = i + len, o++) {
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if (!strcmp(o->name, arg)) { /* match */
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if (o->has_arg == 0) {
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if ((argv[opj_optind + 1]) && (!(argv[opj_optind + 1][0] == '-'))) {
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fprintf(stderr, "%s: option does not require an argument. Ignoring %s\n", arg,
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argv[opj_optind + 1]);
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++opj_optind;
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}
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} else {
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opj_optarg = argv[opj_optind + 1];
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if (opj_optarg) {
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if (opj_optarg[0] ==
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'-') { /* Has read next input parameter: No arg for current parameter */
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if (opj_opterr) {
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fprintf(stderr, "%s: option requires an argument\n", arg);
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return (BADCH);
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}
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}
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}
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if (!opj_optarg && o->has_arg == 1) { /* no argument there */
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if (opj_opterr) {
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fprintf(stderr, "%s: option requires an argument \n", arg);
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return (BADCH);
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}
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}
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++opj_optind;
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}
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++opj_optind;
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if (o->flag) {
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*(o->flag) = o->val;
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} else {
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return o->val;
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}
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return 0;
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}
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}/*(end for)String not found in the list*/
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fprintf(stderr, "Invalid option %s\n", arg);
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++opj_optind;
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return (BADCH);
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} else { /*Single character input parameter*/
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if (*optstring == ':') {
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return ':';
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}
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if (lastidx != opj_optind) {
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lastidx = opj_optind;
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lastofs = 0;
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}
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opj_optopt = argv[opj_optind][lastofs + 1];
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if ((tmp = strchr(optstring, opj_optopt))) { /*Found input parameter in list*/
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if (*tmp == 0) { /* apparently, we looked for \0, i.e. end of argument */
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++opj_optind;
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goto again;
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}
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if (tmp[1] == ':') { /* argument expected */
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if (tmp[2] == ':' ||
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argv[opj_optind][lastofs + 2]) { /* "-foo", return "oo" as opj_optarg */
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if (!*(opj_optarg = argv[opj_optind] + lastofs + 2)) {
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opj_optarg = 0;
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}
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goto found;
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}
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opj_optarg = argv[opj_optind + 1];
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if (opj_optarg) {
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if (opj_optarg[0] ==
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'-') { /* Has read next input parameter: No arg for current parameter */
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if (opj_opterr) {
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fprintf(stderr, "%s: option requires an argument\n", arg);
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++opj_optind;
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return (BADCH);
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}
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}
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}
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if (!opj_optarg) { /* missing argument */
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if (opj_opterr) {
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fprintf(stderr, "%s: option requires an argument\n", arg);
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++opj_optind;
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return (BADCH);
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}
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}
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++opj_optind;
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} else {/*Argument not expected*/
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++lastofs;
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return opj_optopt;
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}
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found:
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++opj_optind;
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return opj_optopt;
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} else { /* not found */
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fprintf(stderr, "Invalid option %s\n", arg);
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++opj_optind;
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return (BADCH);
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}/*end of not found*/
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}/* end of single character*/
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}/*end '-'*/
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fprintf(stderr, "Invalid option\n");
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++opj_optind;
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return (BADCH);;
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}/*end function*/
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