modules/wh/wh_queries.c

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FUNCTIONS

This source file includes following functions.
  1. WH_cd_sock

   1 /***************************************
   2   $Revision: 1.12 $
   3 
   4   Whois query (wh) - connects to a whois server and returns result
   5 
   6   Status: NOT REVIEWED, TESTED
   7   
   8   Design and implementation by: Marek Bukowy
   9   
  10   Note:  still not final. Probably SK calls should be moved to the
  11          calling routine
  12   
  13   ******************/ /******************
  14   Copyright (c) 1999                              RIPE NCC
  15  
  16   All Rights Reserved
  17   
  18   Permission to use, copy, modify, and distribute this software and its
  19   documentation for any purpose and without fee is hereby granted,
  20   provided that the above copyright notice appear in all copies and that
  21   both that copyright notice and this permission notice appear in
  22   supporting documentation, and that the name of the author not be
  23   used in advertising or publicity pertaining to distribution of the
  24   software without specific, written prior permission.
  25   
  26   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  27   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
  28   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  29   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  30   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  31   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  32   ***************************************/
  33 
  34 #include <sys/types.h>
  35 #include <sys/socket.h>
  36 #include <netinet/in.h>
  37 #include <netdb.h>
  38 #include <stdio.h>
  39 
  40 #include <erroutines.h>
  41 #include "sk.h"
  42 
  43 
  44 
  45 /*+ as above - but with connection structures, timeouts, maxlines, etc.
  46   +*/
  47 er_ret_t
  48 WH_cd_sock(sk_conn_st *out_cd, char *hostname, unsigned port, 
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  49         char *query, unsigned maxlines, unsigned timeout)
  50 {
  51   int s; 
  52   int lines = 0;
  53   er_ret_t err;
  54   
  55   if( (err = SK_connect(&s, hostname, port, timeout)) == SK_OK )
  56   {
  57 #define MAX_LINE_SIZE 1024
  58 
  59     char reply[MAX_LINE_SIZE];
  60     sk_conn_st peer_cd;
  61 
  62     SK_cd_make( &peer_cd, s, timeout );
  63     
  64     SK_cd_puts( &peer_cd, query);
  65     SK_cd_puts( &peer_cd, "\r\n");
  66   
  67     do {
  68       SK_cd_gets(&peer_cd, reply, MAX_LINE_SIZE);
  69       SK_cd_puts(out_cd, reply);
  70     }
  71     while( ++lines <= maxlines && peer_cd.rtc == 0 );
  72     
  73     
  74     switch(peer_cd.rtc) {
  75     case 0:
  76     case SK_DISCONNECT:      
  77       /* OK */
  78       break;
  79     case SK_TIMEOUT:
  80       err = SK_TIMEOUT;
  81       break;
  82     default: 
  83       die; /* it should not happen - change here when allowing this */
  84     }
  85 
  86     if( lines >= maxlines ) {
  87       err = WH_MAXLINES;
  88     }
  89     
  90 
  91     SK_cd_close(&peer_cd);
  92     SK_cd_free (&peer_cd);
  93   } /* if OK */
  94 
  95   return err;
  96 }
  97 

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