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/* $Id$ */
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/*
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*
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* Copyright (C) 2001-2003 FhG Fokus
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*
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* This file is part of ser, a free SIP server.
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*
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* ser is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* For a license to use the ser software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* ser is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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static char *id="$Id$";
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static char *version="resolver_test 0.1";
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static char* help_msg="\
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Usage: resolver -n address [-c count] [-v]\n\
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Options:\n\
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-n address address to be resolved\n\
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-c count how many times to resolve it\n\
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-v increase verbosity level\n\
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-V version number\n\
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-h this help message\n\
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";
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int main (int argc, char** argv)
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{
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char c;
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struct hostent* he;
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int ok;
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int errors;
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int r;
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char *tmp;
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int count;
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int verbose;
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char *address;
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/* init */
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count=0;
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verbose=0;
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address=0;
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ok=errors=0;
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opterr=0;
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while ((c=getopt(argc,argv, "n:c:vhV"))!=-1){
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switch(c){
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case 'n':
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address=optarg;
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break;
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case 'v':
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verbose++;
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break;
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case 'c':
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count=strtol(optarg, &tmp, 10);
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if ((tmp==0)||(*tmp)){
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fprintf(stderr, "bad count: -c %s\n", optarg);
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goto error;
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}
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break;
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case 'V':
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printf("version: %s\n", version);
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printf("%s\n",id);
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exit(0);
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break;
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case 'h':
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printf("version: %s\n", version);
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printf("%s", help_msg);
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exit(0);
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break;
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case '?':
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if (isprint(optopt))
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fprintf(stderr, "Unknown option `-%c<>\n", optopt);
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else
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fprintf(stderr, "Unknown character `\\x%x<>\n", optopt);
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goto error;
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case ':':
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fprintf(stderr, "Option `-%c<> requires an argument.\n",
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optopt);
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goto error;
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break;
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default:
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abort();
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}
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}
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/* check if all the required params are present */
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if (address==0){
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fprintf(stderr, "Missing -a address\n");
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exit(-1);
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}
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if(count==0){
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fprintf(stderr, "Missing count (-c number)\n");
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exit(-1);
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}else if(count<0){
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fprintf(stderr, "Invalid count (-c %d)\n", count);
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exit(-1);
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}
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/* flood loop */
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for (r=0; r<count; r++){
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if ((verbose>1)&&(r%1000)) putchar('.');
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/* resolve destination loop */
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he=gethostbyname(address);
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if (he==0){
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errors++;
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if (verbose>1)
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putchar('?');
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}else ok++;
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}
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printf("\n%d requests, %d succeeded, %d errors\n", count, ok, errors);
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exit(0);
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error:
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exit(-1);
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}
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