Initial import

[samba] / source / nmbd / nmbd_lmhosts.c

diff --git a/source/nmbd/nmbd_lmhosts.c b/source/nmbd/nmbd_lmhosts.c
new file mode 100644 (file)
index 0000000..b14e13f
--- /dev/null
+++ b/source/nmbd/nmbd_lmhosts.c
@@ -0,0 +1,93 @@
+/*
+   Unix SMB/CIFS implementation.
+   NBT netbios routines and daemon - version 2
+   Copyright (C) Jeremy Allison 1994-1998
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   Revision History:
+
+   Handle lmhosts file reading.
+
+*/
+
+#include "includes.h"
+
+/****************************************************************************
+Load a lmhosts file.
+****************************************************************************/
+
+void load_lmhosts_file(char *fname)
+{  
+       pstring name;
+       int name_type;
+       struct in_addr ipaddr;
+       XFILE *fp = startlmhosts( fname );
+
+       if (!fp) {
+               DEBUG(2,("load_lmhosts_file: Can't open lmhosts file %s. Error was %s\n",
+                       fname, strerror(errno)));
+               return;
+       }
+   
+       while (getlmhostsent(fp, name, &name_type, &ipaddr) ) {
+               struct subnet_record *subrec = NULL;
+               enum name_source source = LMHOSTS_NAME;
+
+               /* We find a relevent subnet to put this entry on, then add it. */
+               /* Go through all the broadcast subnets and see if the mask matches. */
+               for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) {
+                       if(same_net(ipaddr, subrec->bcast_ip, subrec->mask_ip))
+                               break;
+               }
+  
+               /* If none match add the name to the remote_broadcast_subnet. */
+               if(subrec == NULL)
+                       subrec = remote_broadcast_subnet;
+
+               if(name_type == -1) {
+                       /* Add the (0) and (0x20) names directly into the namelist for this subnet. */
+                       (void)add_name_to_subnet(subrec,name,0x00,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr);
+                       (void)add_name_to_subnet(subrec,name,0x20,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr);
+               } else {
+                       /* Add the given name type to the subnet namelist. */
+                       (void)add_name_to_subnet(subrec,name,name_type,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr);
+               }
+       }
+   
+       endlmhosts(fp);
+}
+
+/****************************************************************************
+  Find a name read from the lmhosts file. We secretly check the names on
+  the remote_broadcast_subnet as if the name was added to a regular broadcast
+  subnet it will be found by normal name query processing.
+****************************************************************************/
+
+BOOL find_name_in_lmhosts(struct nmb_name *nmbname, struct name_record **namerecp)
+{
+       struct name_record *namerec;
+
+       *namerecp = NULL;
+
+       if((namerec = find_name_on_subnet(remote_broadcast_subnet, nmbname, FIND_ANY_NAME))==NULL)
+               return False;
+
+       if(!NAME_IS_ACTIVE(namerec) || (namerec->data.source != LMHOSTS_NAME))
+               return False;
+
+       *namerecp = namerec;
+       return True;
+}