first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 104 insertions, 0 deletions

diff --git a/source4/nmbd/nmbd_lmhosts.c b/source4/nmbd/nmbd_lmhosts.c
new file mode 100644
index 0000000000..c47384c819
--- /dev/null
+++ b/source4/nmbd/nmbd_lmhosts.c
@@ -0,0 +1,104 @@
+/*
+   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)
+{  
+  char *name;
+  int name_type;
+  struct in_addr ipaddr;
+  XFILE *fp = startlmhosts( fname );
+  TALLOC_CTX *mem_ctx;
+
+  if (!fp) {
+    DEBUG(2,("load_lmhosts_file: Can't open lmhosts file %s. Error was %s\n",
+             fname, strerror(errno)));
+    return;
+  }
+  mem_ctx = talloc_init("load_lmhosts_files");
+  if (!mem_ctx) {
+    DEBUG(2,("load_lmhosts_file: No memory to open lmhosts file %s. Error was %s\n",
+             fname, strerror(errno)));
+    return;
+  }
+  while (getlmhostsent(mem_ctx, 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;
+}