1 /*
2 * Copyright (c) 1997 - 2001 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. 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 #include <err.h>
37
38 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
krb5_std_usage(int code,struct getargs * args,int num_args)39 krb5_std_usage(int code, struct getargs *args, int num_args)
40 {
41 arg_printusage(args, num_args, NULL, "");
42 exit(code);
43 }
44
45 KRB5_LIB_FUNCTION int KRB5_LIB_CALL
krb5_program_setup(krb5_context * context,int argc,char ** argv,struct getargs * args,int num_args,void (KRB5_LIB_CALL * usage)(int,struct getargs *,int))46 krb5_program_setup(krb5_context *context, int argc, char **argv,
47 struct getargs *args, int num_args,
48 void (KRB5_LIB_CALL *usage)(int, struct getargs*, int))
49 {
50 krb5_error_code ret;
51 int optidx = 0;
52
53 if(usage == NULL)
54 usage = krb5_std_usage;
55
56 setprogname(argv[0]);
57 ret = krb5_init_context(context);
58 if (ret)
59 errx (1, "krb5_init_context failed: %d", ret);
60
61 if(getarg(args, num_args, argc, argv, &optidx))
62 (*usage)(1, args, num_args);
63 return optidx;
64 }
65