main.c revision 178826 
1/*
2 * Copyright (c) 1997-2002 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 "kcm_locl.h"
35
36RCSID("$Id: main.c 15298 2005-05-30 10:58:14Z lha $");
37
38sig_atomic_t exit_flag = 0;
39
40krb5_context kcm_context = NULL;
41
42static RETSIGTYPE
43sigterm(int sig)
44{
45    exit_flag = 1;
46}
47
48static RETSIGTYPE
49sigusr1(int sig)
50{
51    kcm_debug_ccache(kcm_context);
52}
53
54static RETSIGTYPE
55sigusr2(int sig)
56{
57    kcm_debug_events(kcm_context);
58}
59
60int
61main(int argc, char **argv)
62{
63    krb5_error_code ret;
64    setprogname(argv[0]);
65
66    ret = krb5_init_context(&kcm_context);
67    if (ret) {
68	errx (1, "krb5_init_context failed: %d", ret);
69	return ret;
70    }
71
72    kcm_configure(argc, argv);
73
74#ifdef HAVE_SIGACTION
75    {
76	struct sigaction sa;
77
78	sa.sa_flags = 0;
79	sa.sa_handler = sigterm;
80	sigemptyset(&sa.sa_mask);
81
82	sigaction(SIGINT, &sa, NULL);
83	sigaction(SIGTERM, &sa, NULL);
84
85	sa.sa_handler = sigusr1;
86	sigaction(SIGUSR1, &sa, NULL);
87
88	sa.sa_handler = sigusr2;
89	sigaction(SIGUSR2, &sa, NULL);
90
91	sa.sa_handler = SIG_IGN;
92	sigaction(SIGPIPE, &sa, NULL);
93    }
94#else
95    signal(SIGINT, sigterm);
96    signal(SIGTERM, sigterm);
97    signal(SIGUSR1, sigusr1);
98    signal(SIGUSR2, sigusr2);
99    signal(SIGPIPE, SIG_IGN);
100#endif
101    if (detach_from_console)
102	daemon(0, 0);
103    pidfile(NULL);
104    kcm_loop();
105    krb5_free_context(kcm_context);
106    return 0;
107}
108