- Skip the initial punctuation. */
-
- d->__nextchar = (argv[d->optind] + 1
- + (longopts != NULL && argv[d->optind][1] == '-'));
- }
-
- /* Decode the current option-ARGV-element. */
-
- /* Check whether the ARGV-element is a long option.
-
- If long_only and the ARGV-element has the form "-f", where f is
- a valid short option, don't consider it an abbreviated form of
- a long option that starts with f. Otherwise there would be no
- way to give the -f short option.
-
- On the other hand, if there's a long option "fubar" and
- the ARGV-element is "-fu", do consider that an abbreviation of
- the long option, just like "--fu", and not "-f" with arg "u".
-
- This distinction seems to be the most useful approach. */
-
- if (longopts != NULL
- && (argv[d->optind][1] == '-'
- || (long_only && (argv[d->optind][2]
- || !strchr (optstring, argv[d->optind][1])))))
- {
- char *nameend;
- unsigned int namelen;
- const struct option *p;
- const struct option *pfound = NULL;
- struct option_list
- {
- const struct option *p;
- struct option_list *next;
- } *ambig_list = NULL;
- int exact = 0;
- int indfound = -1;
- int option_index;
-
- for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
- namelen = nameend - d->__nextchar;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, d->__nextchar, namelen))
- {
- if (namelen == (unsigned int) strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else if (long_only
- || pfound->has_arg != p->has_arg
- || pfound->flag != p->flag
- || pfound->val != p->val)
- {
- /* Second or later nonexact match found. */
- struct option_list *newp = malloc (sizeof (*newp));
- newp->p = p;
- newp->next = ambig_list;
- ambig_list = newp;
- }
- }
-
- if (ambig_list != NULL && !exact)
- {
- if (print_errors)
- {
- struct option_list first;
- first.p = pfound;
- first.next = ambig_list;
- ambig_list = &first;
-
-#if defined _LIBC && defined USE_IN_LIBIO
- char *buf = NULL;
- size_t buflen = 0;
-
- FILE *fp = open_memstream (&buf, &buflen);
- if (fp != NULL)
- {
- fprintf (fp,
- _("%s: option '%s' is ambiguous; possibilities:"),
- argv[0], argv[d->optind]);
-
- do
- {
- fprintf (fp, " '--%s'", ambig_list->p->name);
- ambig_list = ambig_list->next;
- }
- while (ambig_list != NULL);
-
- fputc_unlocked ('\n', fp);
-
- if (__builtin_expect (fclose (fp) != EOF, 1))
- {
- _IO_flockfile (stderr);
-
- int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
- ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
-
- __fxprintf (NULL, "%s", buf);
-
- ((_IO_FILE *) stderr)->_flags2 = old_flags2;
- _IO_funlockfile (stderr);
-
- free (buf);
- }
- }
-#else
- fprintf (stderr,
- _("%s: option '%s' is ambiguous; possibilities:"),
- argv[0], argv[d->optind]);
- do
- {
- fprintf (stderr, " '--%s'", ambig_list->p->name);
- ambig_list = ambig_list->next;
- }
- while (ambig_list != NULL);
-
- fputc ('\n', stderr);
-#endif
- }
- d->__nextchar += strlen (d->__nextchar);
- d->optind++;
- d->optopt = 0;
- return '?';
- }
-
- while (ambig_list != NULL)
- {
- struct option_list *pn = ambig_list->next;
- free (ambig_list);
- ambig_list = pn;
- }
-
- if (pfound != NULL)
- {
- option_index = indfound;
- d->optind++;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- d->optarg = nameend + 1;
- else
- {
- if (print_errors)
- {
-#if defined _LIBC && defined USE_IN_LIBIO
- char *buf;
- int n;
-#endif
-
- if (argv[d->optind - 1][1] == '-')
- {
- /* --option */
-#if defined _LIBC && defined USE_IN_LIBIO
- n = __asprintf (&buf, _("\
-%s: option '--%s' doesn't allow an argument\n"),
- argv[0], pfound->name);
-#else
- fprintf (stderr, _("\
-%s: option '--%s' doesn't allow an argument\n"),
- argv[0], pfound->name);
-#endif
- }
- else
- {
- /* +option or -option */
-#if defined _LIBC && defined USE_IN_LIBIO
- n = __asprintf (&buf, _("\
-%s: option '%c%s' doesn't allow an argument\n"),
- argv[0], argv[d->optind - 1][0],
- pfound->name);
-#else
- fprintf (stderr, _("\
-%s: option '%c%s' doesn't allow an argument\n"),
- argv[0], argv[d->optind - 1][0],
- pfound->name);
-#endif
- }
-
-#if defined _LIBC && defined USE_IN_LIBIO
- if (n >= 0)
- {
- _IO_flockfile (stderr);
-
- int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
- ((_IO_FILE *) stderr)->_flags2
- |= _IO_FLAGS2_NOTCANCEL;
-
- __fxprintf (NULL, "%s", buf);
-
- ((_IO_FILE *) stderr)->_flags2 = old_flags2;
- _IO_funlockfile (stderr);
-
- free (buf);
- }
-#endif
- }
-
- d->__nextchar += strlen (d->__nextchar);
-
- d->optopt = pfound->val;
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (d->optind < argc)
- d->optarg = argv[d->optind++];
- else
- {
- if (print_errors)
- {
-#if defined _LIBC && defined USE_IN_LIBIO
- char *buf;
-
- if (__asprintf (&buf, _("\
-%s: option '--%s' requires an argument\n"),
- argv[0], pfound->name) >= 0)
- {
- _IO_flockfile (stderr);
-
- int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
- ((_IO_FILE *) stderr)->_flags2
- |= _IO_FLAGS2_NOTCANCEL;
-
- __fxprintf (NULL, "%s", buf);
-
- ((_IO_FILE *) stderr)->_flags2 = old_flags2;
- _IO_funlockfile (stderr);
-
- free (buf);
- }
-#else
- fprintf (stderr,
- _("%s: option '--%s' requires an argument\n"),
- argv[0], pfound->name);
-#endif
- }
- d->__nextchar += strlen (d->__nextchar);
- d->optopt = pfound->val;
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- d->__nextchar += strlen (d->__nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
-
- /* Can't find it as a long option. If this is not getopt_long_only,
- or the option starts with '--' or is not a valid short
- option, then it's an error.
- Otherwise interpret it as a short option. */
- if (!long_only || argv[d->optind][1] == '-'
- || strchr (optstring, *d->__nextchar) == NULL)
- {
- if (print_errors)
- {
-#if defined _LIBC && defined USE_IN_LIBIO
- char *buf;
- int n;
-#endif
-
- if (argv[d->optind][1] == '-')
- {
- /* --option */
-#if defined _LIBC && defined USE_IN_LIBIO
- n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
- argv[0], d->__nextchar);
-#else
- fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
- argv[0], d->__nextchar);
-#endif
- }
- else
- {
- /* +option or -option */
-#if defined _LIBC && defined USE_IN_LIBIO
- n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
- argv[0], argv[d->optind][0], d->__nextchar);
-#else
- fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
- argv[0], argv[d->optind][0], d->__nextchar);
-#endif
- }
-
-#if defined _LIBC && defined USE_IN_LIBIO
- if (n >= 0)
- {
- _IO_flockfile (stderr);
-
- int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
- ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
-
- __fxprintf (NULL, "%s", buf);
-
- ((_IO_FILE *) stderr)->_flags2 = old_flags2;
- _IO_funlockfile (stderr);
-
- free (buf);
- }
-#endif
- }
- d->__nextchar = (char *) "";
- d->optind++;
- d->optopt = 0;
- return '?';
- }