2 * Copyright (c) 1987, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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15 * This product includes software developed by the University of
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34 /*#if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95";
36 #endif /* LIBC_SCCS and not lint
37 #include <sys/cdefs.h>
38 //__FBSDID("$FreeBSD: src/lib/libc/stdlib/getopt.c,v 1.6 2002/03/29 22:43:42 markm Exp $");
40 #include "namespace.h"*/
44 /*#include "un-namespace.h"*/
46 /*#include "libc_private.h"*/
48 int opterr = 1, /* if error message should be printed */
49 optind = 1, /* index into parent argv vector */
50 optopt, /* character checked for validity */
51 optreset; /* reset getopt */
52 char *optarg; /* argument associated with option */
54 #define BADCH (int)'?'
55 #define BADARG (int)':'
60 * Parse argc/argv argument vector.
63 getopt(nargc, nargv, ostr)
68 static char *place = EMSG; /* option letter processing */
69 char *oli; /* option letter list index */
71 if (optreset || !*place) { /* update scanning pointer */
73 if (optind >= nargc || *(place = nargv[optind]) != '-') {
77 if (place[1] && *++place == '-') { /* found "--" */
82 } /* option letter okay? */
83 if ((optopt = (int)*place++) == (int)':' ||
84 !(oli = strchr(ostr, optopt))) {
86 * if the user didn't specify '-' as an option,
89 if (optopt == (int)'-')
93 if (opterr && *ostr != ':' && optopt != BADCH)
94 (void)fprintf(stderr, "%s: illegal option -- %c\n",
98 if (*++oli != ':') { /* don't need argument */
103 else { /* need an argument */
104 if (*place) /* no white space */
106 else if (nargc <= ++optind) { /* no arg */
111 (void)fprintf(stderr,
112 "%s: option requires an argument -- %c\n",
116 else /* white space */
117 optarg = nargv[optind];
121 return (optopt); /* dump back option letter */