crypto/dist/heimdal/kcm/main.c

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