1/* 2 Unix SMB/CIFS implementation. 3 NBT netbios routines and daemon - version 2 4 Copyright (C) Jeremy Allison 1994-1998 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 20 Revision History: 21 22 Handle lmhosts file reading. 23 24*/ 25 26#include "includes.h" 27 28/**************************************************************************** 29Load a lmhosts file. 30****************************************************************************/ 31 32void load_lmhosts_file(char *fname) 33{ 34 pstring name; 35 int name_type; 36 struct in_addr ipaddr; 37 XFILE *fp = startlmhosts( fname ); 38 39 if (!fp) { 40 DEBUG(2,("load_lmhosts_file: Can't open lmhosts file %s. Error was %s\n", 41 fname, strerror(errno))); 42 return; 43 } 44 45 while (getlmhostsent(fp, name, &name_type, &ipaddr) ) { 46 struct subnet_record *subrec = NULL; 47 enum name_source source = LMHOSTS_NAME; 48 49 /* We find a relevent subnet to put this entry on, then add it. */ 50 /* Go through all the broadcast subnets and see if the mask matches. */ 51 for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) { 52 if(same_net(ipaddr, subrec->bcast_ip, subrec->mask_ip)) 53 break; 54 } 55 56 /* If none match add the name to the remote_broadcast_subnet. */ 57 if(subrec == NULL) 58 subrec = remote_broadcast_subnet; 59 60 if(name_type == -1) { 61 /* Add the (0) and (0x20) names directly into the namelist for this subnet. */ 62 (void)add_name_to_subnet(subrec,name,0x00,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); 63 (void)add_name_to_subnet(subrec,name,0x20,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); 64 } else { 65 /* Add the given name type to the subnet namelist. */ 66 (void)add_name_to_subnet(subrec,name,name_type,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); 67 } 68 } 69 70 endlmhosts(fp); 71} 72 73/**************************************************************************** 74 Find a name read from the lmhosts file. We secretly check the names on 75 the remote_broadcast_subnet as if the name was added to a regular broadcast 76 subnet it will be found by normal name query processing. 77****************************************************************************/ 78 79BOOL find_name_in_lmhosts(struct nmb_name *nmbname, struct name_record **namerecp) 80{ 81 struct name_record *namerec; 82 83 *namerecp = NULL; 84 85 if((namerec = find_name_on_subnet(remote_broadcast_subnet, nmbname, FIND_ANY_NAME))==NULL) 86 return False; 87 88 if(!NAME_IS_ACTIVE(namerec) || (namerec->data.source != LMHOSTS_NAME)) 89 return False; 90 91 *namerecp = namerec; 92 return True; 93} 94