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- /* declarations for getopt
- Copyright (C) 1989 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* For communication from `getopt' to the caller.
- When `getopt' finds an option that takes an argument,
- the argument value is returned here.
- Also, when `ordering' is RETURN_IN_ORDER,
- each non-option ARGV-element is returned here. */
-
- extern char *optarg;
-
- /* Index in ARGV of the next element to be scanned.
- This is used for communication to and from the caller
- and for communication between successive calls to `getopt'.
-
- On entry to `getopt', zero means this is the first call; initialize.
-
- When `getopt' returns EOF, this is the index of the first of the
- non-option elements that the caller should itself scan.
-
- Otherwise, `optind' communicates from one call to the next
- how much of ARGV has been scanned so far. */
-
- extern int optind;
-
- /* Callers store zero here to inhibit the error message `getopt' prints
- for unrecognized options. */
-
- extern int opterr;
-
- /* Describe the long-named options requested by the application.
- _GETOPT_LONG_OPTIONS is a vector of `struct option' terminated by an
- element containing a name which is zero.
- The field `has_arg' is:
- 0 if the option does not take an argument,
- 1 if the option requires an argument,
- 2 if the option takes an optional argument.
- If the field `flag' is nonzero, it points to a variable that is set to
- the value given in the field `val' when the option is found, but
- left unchanged if the option is not found. */
-
- struct option
- {
- char *name;
- int has_arg;
- int *flag;
- int val;
- };
-
- extern struct option *_getopt_long_options;
-
- /* Name of long-named option actually found.
- Only changed when a long-named option is found. */
-
- extern char *_getopt_option_name;
-
- /* The index in GETOPT_LONG_OPTIONS of the long-named option found.
- Only valid when a long-named option has been found by the most
- recent call to `getopt'. */
-
- extern int option_index;
-
- #ifdef __STDC__
- int getopt (int, char **, char *);
- int getopt_long (int, char **, char *, struct option *, int *);
- #else
- int getopt ();
- int getopt_long ();
- #endif
-