xref: /freebsd-9.3-release/contrib/com_err/getarg.h

/*
 * Copyright (c) 1997 Kungliga Tekniska H�gskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Kungliga Tekniska
 *      H�gskolan and its contributors.
 *
 * 4. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/* $Id: getarg.h,v 1.5 1998/08/18 20:26:11 assar Exp $ */

#ifndef __GETARG_H__
#define __GETARG_H__

#include <stddef.h>

#define max(a,b) (((a)>(b))?(a):(b))

struct getargs{
    const char *long_name;
    char short_name;
    enum { arg_integer, arg_string, arg_flag, arg_negative_flag, arg_strings } type;
    void *value;
    const char *help;
    const char *arg_help;
};

enum {
    ARG_ERR_NO_MATCH  = 1,
    ARG_ERR_BAD_ARG,
    ARG_ERR_NO_ARG
};

typedef struct getarg_strings {
    int num_strings;
    char **strings;
} getarg_strings;

int getarg(struct getargs *args, size_t num_args,
	   int argc, char **argv, int *optind);

void arg_printusage (struct getargs *args,
		     size_t num_args,
		     const char *progname,
		     const char *extra_string);

#endif /* __GETARG_H__ */