samba-mirror/third_party/heimdal/lib/krb5/prog_setup.c

/*
 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
 * (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. 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.
 */

#include "krb5_locl.h"
#include <getarg.h>
#include <err.h>

KRB5_LIB_FUNCTION void KRB5_LIB_CALL
krb5_std_usage(int code, struct getargs *args, int num_args)
{
    arg_printusage(args, num_args, NULL, "");
    exit(code);
}

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))
{
    krb5_error_code ret;
    int optidx = 0;

    if(usage == NULL)
	usage = krb5_std_usage;

    setprogname(argv[0]);
    ret = krb5_init_context(context);
    if (ret)
	errx (1, "krb5_init_context failed: %d", ret);

    if(getarg(args, num_args, argc, argv, &optidx))
	(*usage)(1, args, num_args);
    return optidx;
}