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Viewing changes to dttools/src/auth_hostname.c

  • Committer: Bazaar Package Importer
  • Author(s): Michael Hanke
  • Date: 2011-05-07 09:05:00 UTC
  • Revision ID: james.westby@ubuntu.com-20110507090500-lqpmdtwndor6e7os
Tags: upstream-3.3.2
Import upstream version 3.3.2

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dttools/src/auth_hostname.c
 
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/*
 
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Copyright (C) 2003-2004 Douglas Thain and the University of Wisconsin
 
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Copyright (C) 2005- The University of Notre Dame
 
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This software is distributed under the GNU General Public License.
 
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See the file COPYING for details.
 
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*/
 
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#include "auth.h"
 
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#include "debug.h"
 
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#include "domain_name_cache.h"
 
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#include <stdlib.h>
 
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#include <stdio.h>
 
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#include <string.h>
 
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#include <unistd.h>
 
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#include <errno.h>
 
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static int auth_hostname_assert( struct link *link, struct hash_table *t, time_t stoptime )
 
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{
 
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        char line[AUTH_LINE_MAX];
 
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        if(!link_readline(link,line,sizeof(line),stoptime)) {
 
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                debug(D_AUTH,"hostname: lost connection");
 
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                return 0;
 
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        }
 
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        if(!strcmp(line,"yes")) {
 
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                debug(D_AUTH,"hostname: accepted");
 
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                return 1;
 
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        }
 
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        return 0;
 
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}
 
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static int auth_hostname_accept( struct link *link, char **subject, struct hash_table *t, time_t stoptime )
 
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{
 
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        char addr[LINK_ADDRESS_MAX];
 
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        char name[DOMAIN_NAME_MAX];
 
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        int port;
 
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        if(!link_address_remote(link,addr,&port)) {
 
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                debug(D_AUTH,"hostname: couldn't get address of link");
 
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                goto reject;
 
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        }
 
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        if(!domain_name_cache_lookup_reverse(addr,name)) {
 
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                debug(D_AUTH,"hostname: couldn't look up name of %s",name);
 
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                goto reject;
 
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        }
 
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        *subject = strdup(name);
 
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        if(!*subject) {
 
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                debug(D_AUTH,"hostname: out of memory");
 
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                goto reject;
 
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        }
 
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        link_putliteral(link,"yes\n",stoptime);
 
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        return 1;
 
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        reject:
 
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        link_putliteral(link,"no\n",stoptime);
 
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        return 0;
 
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}
 
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int auth_hostname_register()
 
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{
 
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        debug(D_AUTH,"hostname: registered");
 
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        return auth_register( "hostname", auth_hostname_assert, auth_hostname_accept );
 
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}
 
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