xref: /freebsd/crypto/heimdal/lib/krb5/prog_setup.c (revision b528cefc6b8f9670b31a865051741d946cb37085)
1 /*
2  * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H�gskolan
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. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include "krb5_locl.h"
35 #include <getarg.h>
36 
37 RCSID("$Id: prog_setup.c,v 1.6 1999/12/02 17:05:11 joda Exp $");
38 
39 void
40 krb5_std_usage(int code, struct getargs *args, int num_args)
41 {
42     arg_printusage(args, num_args, NULL, "");
43     exit(code);
44 }
45 
46 int
47 krb5_program_setup(krb5_context *context, int argc, char **argv,
48 		   struct getargs *args, int num_args,
49 		   void (*usage)(int, struct getargs*, int))
50 {
51     int optind = 0;
52 
53     if(usage == NULL)
54 	usage = krb5_std_usage;
55 
56     set_progname(argv[0]);
57     krb5_init_context(context);
58 
59     if(getarg(args, num_args, argc, argv, &optind))
60 	(*usage)(1, args, num_args);
61     return optind;
62 }
63