main.c revision 178825 
1/*
2 * Copyright (c) 1997-2005 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 "kdc_locl.h"
35#ifdef HAVE_UTIL_H
36#include <util.h>
37#endif
38
39RCSID("$Id: main.c 20454 2007-04-19 20:21:51Z lha $");
40
41sig_atomic_t exit_flag = 0;
42
43int detach_from_console = -1;
44
45static RETSIGTYPE
46sigterm(int sig)
47{
48    exit_flag = sig;
49}
50
51int
52main(int argc, char **argv)
53{
54    krb5_error_code ret;
55    krb5_context context;
56    krb5_kdc_configuration *config;
57
58    setprogname(argv[0]);
59
60    ret = krb5_init_context(&context);
61    if (ret == KRB5_CONFIG_BADFORMAT)
62	errx (1, "krb5_init_context failed to parse configuration file");
63    else if (ret)
64	errx (1, "krb5_init_context failed: %d", ret);
65
66    ret = krb5_kt_register(context, &hdb_kt_ops);
67    if (ret)
68	errx (1, "krb5_kt_register(HDB) failed: %d", ret);
69
70    config = configure(context, argc, argv);
71
72#ifdef HAVE_SIGACTION
73    {
74	struct sigaction sa;
75
76	sa.sa_flags = 0;
77	sa.sa_handler = sigterm;
78	sigemptyset(&sa.sa_mask);
79
80	sigaction(SIGINT, &sa, NULL);
81	sigaction(SIGTERM, &sa, NULL);
82	sigaction(SIGXCPU, &sa, NULL);
83
84	sa.sa_handler = SIG_IGN;
85	sigaction(SIGPIPE, &sa, NULL);
86    }
87#else
88    signal(SIGINT, sigterm);
89    signal(SIGTERM, sigterm);
90    signal(SIGXCPU, sigterm);
91    signal(SIGPIPE, SIG_IGN);
92#endif
93    if (detach_from_console)
94	daemon(0, 0);
95    pidfile(NULL);
96    loop(context, config);
97    krb5_free_context(context);
98    return 0;
99}
100