kdc/main.c

   1 /*
   2  * Copyright (c) 1997-2005 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 "kdc_locl.h"
  35 #ifdef HAVE_UTIL_H
  36 #include <util.h>
  37 #endif
  38
  39 sig_atomic_t exit_flag = 0;
  40
  41 #ifdef SUPPORT_DETACH
  42 int detach_from_console = -1;
  43 #endif
  44
  45 static RETSIGTYPE
  46 sigterm(int sig)
  47 {
  48     exit_flag = sig;
  49 }
  50
  51 int
  52 main(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 #ifdef SUPPORT_DETACH
  94     if (detach_from_console)
  95         daemon(0, 0);
  96 #endif
  97     pidfile(NULL);
  98     loop(context, config);
  99     krb5_free_context(context);
 100     return 0;
 101 }