getopt.c
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: getopt.c,v 1.2.32.1 2004/07/19 21:04:07 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hlxclib/stdio.h"
- #include "hlxclib/string.h"
- char *optarg; /* Global argument pointer. */
- int optind = 0; /* Global argv index. */
- static char *scan = NULL; /* Private scan pointer. */
- int
- getopt(int argc, char * const * argv, const char *optstring)
- {
- register char c;
- register char *place;
- optarg = NULL;
- if (scan == NULL || *scan == ' ') {
- if (optind == 0)
- optind++;
-
- if (optind >= argc || argv[optind][0] != '-' || argv[optind][1] == ' ')
- return(EOF);
- if (strcmp(argv[optind], "--")==0) {
- optind++;
- return(EOF);
- }
-
- scan = argv[optind]+1;
- optind++;
- }
- c = *scan++;
- place = strchr(optstring, c);
- if (place == NULL || c == ':') {
- fprintf(stderr, "%s: unknown option -%cn", argv[0], c);
- return('?');
- }
- place++;
- if (*place == ':') {
- if (*scan != ' ') {
- optarg = scan;
- scan = NULL;
- } else if (optind < argc) {
- optarg = argv[optind];
- optind++;
- } else {
- fprintf(stderr, "%s: -%c argument missingn", argv[0], c);
- return('?');
- }
- }
- return(c);
- }