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      1 /*	$NetBSD: prog_setup.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 - 2001 Kungliga Tekniska Hgskolan
      5  * (Royal Institute of Technology, Stockholm, Sweden).
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  *
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  *
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * 3. Neither the name of the Institute nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include "krb5_locl.h"
     37 #include <krb5/getarg.h>
     38 #include <err.h>
     39 
     40 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
     41 krb5_std_usage(int code, struct getargs *args, int num_args)
     42 {
     43     arg_printusage(args, num_args, NULL, "");
     44     exit(code);
     45 }
     46 
     47 KRB5_LIB_FUNCTION int KRB5_LIB_CALL
     48 krb5_program_setup(krb5_context *context, int argc, char **argv,
     49 		   struct getargs *args, int num_args,
     50 		   void (KRB5_LIB_CALL *usage)(int, struct getargs*, int))
     51 {
     52     krb5_error_code ret;
     53     int optidx = 0;
     54 
     55     if(usage == NULL)
     56 	usage = krb5_std_usage;
     57 
     58     setprogname(argv[0]);
     59     ret = krb5_init_context(context);
     60     if (ret)
     61 	errx (1, "krb5_init_context failed: %d", ret);
     62 
     63     if(getarg(args, num_args, argc, argv, &optidx))
     64 	(*usage)(1, args, num_args);
     65     return optidx;
     66 }
     67