contrib/com_err/getarg.h

   1 /*
   2  * Copyright (c) 1997 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 /* $Id: getarg.h,v 1.5 1998/08/18 20:26:11 assar Exp $ */
  40
  41 #ifndef __GETARG_H__
  42 #define __GETARG_H__
  43
  44 #include <stddef.h>
  45
  46 #define max(a,b) (((a)>(b))?(a):(b))
  47
  48 struct getargs{
  49     const char *long_name;
  50     char short_name;
  51     enum { arg_integer, arg_string, arg_flag, arg_negative_flag, arg_strings } type;
  52     void *value;
  53     const char *help;
  54     const char *arg_help;
  55 };
  56
  57 enum {
  58     ARG_ERR_NO_MATCH  = 1,
  59     ARG_ERR_BAD_ARG,
  60     ARG_ERR_NO_ARG
  61 };
  62
  63 typedef struct getarg_strings {
  64     int num_strings;
  65     char **strings;
  66 } getarg_strings;
  67
  68 int getarg(struct getargs *args, size_t num_args,
  69            int argc, char **argv, int *optind);
  70
  71 void arg_printusage (struct getargs *args,
  72                      size_t num_args,
  73                      const char *progname,
  74                      const char *extra_string);
  75
  76 #endif /* __GETARG_H__ */