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/*
Unix SMB / CIFS implementation .
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lmhosts name resolution module
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Copyright ( C ) Andrew Tridgell 1994 - 1998 , 2005
Copyright ( C ) Jeremy Allison 2007
Copyright ( C ) Jelmer Vernooij 2007
Copyright ( C ) Andrew Bartlett < abartlet @ samba . org > 2009 - 2014
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 3 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 , see < http : //www.gnu.org/licenses/>.
*/
# include "includes.h"
# include "libcli/composite/composite.h"
# include "libcli/resolve/resolve.h"
# include "lib/socket/socket.h"
# include "system/network.h"
# include "lib/socket/netif.h"
# include "param/param.h"
# include "lib/util/util_net.h"
# include "libcli/nbt/libnbt.h"
# include "dynconfig.h"
struct resolve_lmhosts_state {
struct socket_address * * addrs ;
char * * names ;
} ;
/**
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lmhosts name resolution method - async send
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*/
/*
general name resolution - async send
*/
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static struct composite_context * resolve_name_lmhosts_send (
TALLOC_CTX * mem_ctx ,
struct tevent_context * event_ctx ,
void * userdata , uint32_t flags ,
uint16_t port ,
struct nbt_name * name )
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{
struct composite_context * c ;
struct resolve_lmhosts_state * state ;
struct sockaddr_storage * resolved_iplist ;
int resolved_count , i ;
if ( event_ctx = = NULL ) {
return NULL ;
}
c = composite_create ( mem_ctx , event_ctx ) ;
if ( c = = NULL ) return NULL ;
if ( composite_nomem ( c - > event_ctx , c ) ) return c ;
state = talloc_zero ( c , struct resolve_lmhosts_state ) ;
if ( composite_nomem ( state , c ) ) return c ;
c - > private_data = state ;
c - > status = resolve_lmhosts_file_as_sockaddr ( dyn_LMHOSTSFILE , name - > name , name - > type ,
state , & resolved_iplist , & resolved_count ) ;
if ( ! composite_is_ok ( c ) ) return c ;
for ( i = 0 ; i < resolved_count ; i + + ) {
state - > addrs = talloc_realloc ( state , state - > addrs , struct socket_address * , i + 2 ) ;
if ( composite_nomem ( state - > addrs , c ) ) return c ;
set_sockaddr_port ( ( struct sockaddr * ) & resolved_iplist [ i ] , port ) ;
state - > addrs [ i ] = socket_address_from_sockaddr ( state - > addrs , ( struct sockaddr * ) & resolved_iplist [ i ] , sizeof ( resolved_iplist [ i ] ) ) ;
if ( composite_nomem ( state - > addrs [ i ] , c ) ) return c ;
state - > addrs [ i + 1 ] = NULL ;
state - > names = talloc_realloc ( state , state - > names , char * , i + 2 ) ;
if ( composite_nomem ( state - > addrs , c ) ) return c ;
state - > names [ i ] = talloc_strdup ( state - > names , name - > name ) ;
if ( composite_nomem ( state - > names [ i ] , c ) ) return c ;
state - > names [ i + 1 ] = NULL ;
i + + ;
}
composite_done ( c ) ;
return c ;
}
/*
general name resolution method - recv side
*/
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static NTSTATUS resolve_name_lmhosts_recv ( struct composite_context * c ,
TALLOC_CTX * mem_ctx ,
struct socket_address * * * addrs ,
char * * * names )
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{
NTSTATUS status ;
status = composite_wait ( c ) ;
if ( NT_STATUS_IS_OK ( status ) ) {
struct resolve_lmhosts_state * state = talloc_get_type ( c - > private_data , struct resolve_lmhosts_state ) ;
* addrs = talloc_steal ( mem_ctx , state - > addrs ) ;
if ( names ) {
* names = talloc_steal ( mem_ctx , state - > names ) ;
}
}
talloc_free ( c ) ;
return status ;
}
bool resolve_context_add_lmhosts_method ( struct resolve_context * ctx )
{
return resolve_context_add_method ( ctx , resolve_name_lmhosts_send , resolve_name_lmhosts_recv , NULL ) ;
}