bin/rip/whois_rip.c

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FUNCTIONS

This source file includes following functions.
  1. error_init
  2. install_signal_handler
  3. main

   1 /***************************************
   2   $Revision: 1.33 $
   3 
   4   Example code: main server code.
   5 
   6   Status: NOT REVUED, TESTED
   7 
   8   Author:       Chris Ottrey + pretty much everybody else involved :-)
   9 
  10   +html+ <DL COMPACT>
  11   +html+ <DT>Online References:
  12   +html+ <DD><UL>
  13   +html+ </UL>
  14   +html+ </DL>
  15  
  16   ******************/ /******************
  17   Modification History:
  18         ottrey (09/03/1999) Created.
  19   ******************/ /******************
  20   Copyright (c) 1993, 1994, 1995, 1996, 1997  The TERENA Association
  21   Copyright (c) 1998, 1999, 2000, 2001            RIPE NCC
  22  
  23   All Rights Reserved
  24   
  25   Permission to use, copy, modify, and distribute this software and its
  26   documentation for any purpose and without fee is hereby granted,
  27   provided that the above copyright notice appear in all copies and that
  28   both that copyright notice and this permission notice appear in
  29   supporting documentation, and that the name of the author not be
  30   used in advertising or publicity pertaining to distribution of the
  31   software without specific, written prior permission.
  32   
  33   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  34   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
  35   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  36   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  37   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  38   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  39   ***************************************/
  40 
  41 #include "rip.h"
  42 #include <signal.h>
  43 #include <unistd.h>
  44 
  45 void error_init(int argc, char ** argv) {
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  46   char *slash;     
  47   char progname[32];
  48   
  49   slash = strrchr(argv[0],'/');                            
  50   strncpy(progname, (slash != NULL) ? slash+1 : argv[0], 31);
  51   progname[31]=0;
  52   
  53 
  54   ER_init(progname, 1);
  55 
  56 #if 0
  57   /* add one more definition */
  58   {
  59     char *err_msg = NULL;
  60     char *buf = 
  61       "CREATE test { FORMAT SEVCHAR|FACSYMB|TEXTLONG|DATETIME SOCK 2 }"
  62       "( FAC rp ASP RP_SRCH_GEN|RP_SRCH_DET|RP_LOAD_GEN SEV d-f ) "
  63       "( FAC QI|SQ ASP SQ_QRYTIME | QI_COLL_GEN SEV d-f )"  
  64       "( FAC PW ASP PW_I_QRYLOG SEV I-f )"
  65       "( FAC ALL SEV E- )"
  66       /*      "( FAC SV  ASP SV_PORT  SEV d )" */
  67       ;
  68 
  69     int parsres = ER_parse_spec(buf, &err_msg);
  70 
  71     if( parsres != 0 ) { /* print only on failure */
  72       puts(err_msg);
  73     }
  74     
  75     wr_free(err_msg);
  76     
  77     dieif( parsres != 0 );
  78   }
  79 #endif
  80 
  81 } /* error_init() */
  82 
  83 
  84 void install_signal_handler()
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  85 {
  86  struct sigaction sig;
  87  sigset_t sset;
  88 
  89    memset(&sig, 0, sizeof(struct sigaction));
  90    sigemptyset(&sset);
  91  
  92    sig.sa_flags = 0;
  93    sig.sa_handler = SIG_DFL;
  94 
  95    /* change disposition for the signals to handler */
  96    /* this is to avoid signal non delivery in case signal is ignored by parent */
  97 
  98    /* SIGUSR1 will switch the updates on and off */
  99    sigaction(SIGUSR1, &sig, NULL);
 100    
 101    /* SIGINT and SIGTERM stop all servers by setting do_server to 0 */
 102    sigaction(SIGINT, &sig, NULL);
 103    sigaction(SIGTERM, &sig, NULL);
 104     
 105    /* now block the delivery of these signals in other threads */
 106    /* this will be inherited by other threads */
 107    sigemptyset(&sset);
 108    sigaddset(&sset, SIGTERM);
 109    sigaddset(&sset, SIGINT);
 110    sigaddset(&sset, SIGUSR1); 
 111    pthread_sigmask(SIG_BLOCK, &sset, NULL);
 112         
 113 }
 114 
 115 
 116 int main(int argc, char** argv) {
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 117   extern char *optarg;
 118   char *prop_file_name;
 119   char *pid_file_name;                       
 120   char *result;
 121   int c, ret, errflg=0;
 122 /* Initialize GLib library to be thread-safe */
 123    g_thread_init(NULL); 
 124   /* parse command line options */     
 125   prop_file_name = NULL;
 126   pid_file_name = NULL;
 127   if(argc<5) errflg++;
 128 
 129      while ((c = getopt(argc, argv, "c:p:?")) != EOF)
 130      switch (c) {
 131       case 'c':
 132         prop_file_name = g_strdup(optarg);
 133         break;  
 134       case 'p':
 135         pid_file_name = g_strdup(optarg);
 136         break;
 137       case '?':
 138       default :
 139         errflg++;
 140      }
 141      if (errflg || (prop_file_name == NULL) || (pid_file_name == NULL)) {
 142         fprintf(stderr,"usage: %s -c config -p pid_file\n", argv[0]);
 143         exit (2);
 144      }
 145 
 146    install_signal_handler();
 147 
 148 /* Create signal handling thread and block signals for others */
 149    /*   printf("Starting the signal handler\n");*/
 150    TH_create((void *(*)(void *))SV_signal_thread, NULL);
 151      
 152   
 153  /*  Set the constants. */
 154   /* fprintf(stderr,"Constants:\n");  */
 155   result=CO_set(); 
 156   UT_free(result);
 157   fprintf(stderr,"Configuration [%s]:\n", prop_file_name);
 158   ca_init(prop_file_name);
 159 
 160   /* Initialize error handling */
 161   error_init(argc, argv);
 162 
 163   /*  Start the server */
 164   ret = SV_start(pid_file_name);
 165   
 166   
 167   if(ret != 0) return(1); else return(0);
 168 
 169 } /* main() */
 170 

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