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3 * The Regents of the University of California. All rights reserved.
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15 * This product includes software developed by the University of
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33 * $OpenBSD: getopt.c,v 1.2 1996/08/19 08:33:32 tholo Exp $
37 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
43 int BSDopterr = 1, /* if error message should be printed */
44 BSDoptind = 1, /* index into parent argv vector */
45 BSDoptopt, /* character checked for validity */
46 BSDoptreset; /* reset getopt */
47 char *BSDoptarg; /* argument associated with option */
49 #define BADCH (int)'?'
50 #define BADARG (int)':'
55 * Parse argc/argv argument vector.
58 BSDgetopt(nargc, nargv, ostr)
63 extern char *__progname;
64 static char *place = EMSG; /* option letter processing */
65 char *oli; /* option letter list index */
67 if (BSDoptreset || !*place) { /* update scanning pointer */
69 if (BSDoptind >= nargc || *(place = nargv[BSDoptind]) != '-') {
73 if (place[1] && *++place == '-') { /* found "--" */
78 } /* option letter okay? */
79 if ((BSDoptopt = (int)*place++) == (int)':' ||
80 !(oli = strchr(ostr, BSDoptopt))) {
82 * if the user didn't specify '-' as an option,
85 if (BSDoptopt == (int)'-')
89 if (BSDopterr && *ostr != ':')
91 "%s: illegal option -- %c\n", __progname, BSDoptopt);
94 if (*++oli != ':') { /* don't need argument */
99 else { /* need an argument */
100 if (*place) /* no white space */
102 else if (nargc <= ++BSDoptind) { /* no arg */
107 (void)fprintf(stderr,
108 "%s: option requires an argument -- %c\n",
109 __progname, BSDoptopt);
112 else /* white space */
113 BSDoptarg = nargv[BSDoptind];
117 return (BSDoptopt); /* dump back option letter */
120 #endif /* !defined(HAVE_GETOPT) || !defined(HAVE_OPTRESET) */