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ce0c99312c
names in nmbd. Allows conversion from dos codepage mb strings (ie. SJIS) to expand to utf8 size on read. Jeremy. (This used to be commit 834d816caf9cd6318da00febde50d9233469dac2)
176 lines
5.7 KiB
C
176 lines
5.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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NBT netbios routines and daemon - version 2
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Copyright (C) Andrew Tridgell 1994-1998
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Copyright (C) Luke Kenneth Casson Leighton 1994-1998
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Copyright (C) Jeremy Allison 1994-1998
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Copyright (C) Christopher R. Hertel 1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* -------------------------------------------------------------------------- **
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* Modified July 1998 by CRH.
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* I converted this module to use the canned doubly-linked lists. I also
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* added comments above the functions where possible.
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*/
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#include "includes.h"
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/* -------------------------------------------------------------------------- **
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* Variables...
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*
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* lmb_browserlist - This is our local master browser list.
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*/
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ubi_dlNewList( lmb_browserlist );
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/* -------------------------------------------------------------------------- **
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* Functions...
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*/
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/* ************************************************************************** **
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* Remove and free a browser list entry.
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*
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* Input: browc - A pointer to the entry to be removed from the list and
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* freed.
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* Output: none.
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*
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* ************************************************************************** **
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*/
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static void remove_lmb_browser_entry( struct browse_cache_record *browc )
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{
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safe_free( ubi_dlRemThis( lmb_browserlist, browc ) );
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}
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/* ************************************************************************** **
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* Update a browser death time.
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*
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* Input: browc - Pointer to the entry to be updated.
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* Output: none.
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*
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* ************************************************************************** **
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*/
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void update_browser_death_time( struct browse_cache_record *browc )
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{
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/* Allow the new lmb to miss an announce period before we remove it. */
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browc->death_time = time(NULL) + ( (CHECK_TIME_MST_ANNOUNCE + 2) * 60 );
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}
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/* ************************************************************************** **
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* Create a browser entry and add it to the local master browser list.
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*
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* Input: work_name
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* browser_name
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* ip
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*
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* Output: Pointer to the new entry, or NULL if malloc() failed.
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*
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* ************************************************************************** **
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*/
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struct browse_cache_record *create_browser_in_lmb_cache( const char *work_name,
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const char *browser_name,
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struct in_addr ip )
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{
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struct browse_cache_record *browc;
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time_t now = time( NULL );
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browc = (struct browse_cache_record *)malloc( sizeof( *browc ) );
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if( NULL == browc ) {
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DEBUG( 0, ("create_browser_in_lmb_cache: malloc fail !\n") );
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return( NULL );
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}
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memset( (char *)browc, '\0', sizeof( *browc ) );
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/* For a new lmb entry we want to sync with it after one minute. This
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will allow it time to send out a local announce and build its
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browse list.
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*/
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browc->sync_time = now + 60;
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/* Allow the new lmb to miss an announce period before we remove it. */
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browc->death_time = now + ( (CHECK_TIME_MST_ANNOUNCE + 2) * 60 );
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unstrcpy( browc->lmb_name, browser_name);
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unstrcpy( browc->work_group, work_name);
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strupper_m( browc->lmb_name );
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strupper_m( browc->work_group );
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browc->ip = ip;
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(void)ubi_dlAddTail( lmb_browserlist, browc );
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if( DEBUGLVL( 3 ) ) {
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Debug1( "nmbd_browserdb:create_browser_in_lmb_cache()\n" );
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Debug1( " Added lmb cache entry for workgroup %s ", browc->work_group );
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Debug1( "name %s IP %s ", browc->lmb_name, inet_ntoa(ip) );
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Debug1( "ttl %d\n", (int)browc->death_time );
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}
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return( browc );
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}
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/* ************************************************************************** **
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* Find a browser entry in the local master browser list.
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*
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* Input: browser_name - The name for which to search.
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*
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* Output: A pointer to the matching entry, or NULL if no match was found.
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*
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* ************************************************************************** **
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*/
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struct browse_cache_record *find_browser_in_lmb_cache( const char *browser_name )
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{
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struct browse_cache_record *browc;
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for( browc = (struct browse_cache_record *)ubi_dlFirst( lmb_browserlist );
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browc; browc = (struct browse_cache_record *)ubi_dlNext( browc ) )
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if( strequal( browser_name, browc->lmb_name ) )
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break;
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return( browc );
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}
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/* ************************************************************************** **
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* Expire timed out browsers in the browserlist.
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*
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* Input: t - Expiration time. Entries with death times less than this
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* value will be removed from the list.
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* Output: none.
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*
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* ************************************************************************** **
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*/
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void expire_lmb_browsers( time_t t )
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{
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struct browse_cache_record *browc;
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struct browse_cache_record *nextbrowc;
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for( browc = (struct browse_cache_record *)ubi_dlFirst( lmb_browserlist );
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browc; browc = nextbrowc ) {
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nextbrowc = (struct browse_cache_record *)ubi_dlNext( browc );
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if( browc->death_time < t ) {
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if( DEBUGLVL( 3 ) ) {
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Debug1( "nmbd_browserdb:expire_lmb_browsers()\n" );
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Debug1( " Removing timed out lmb entry %s\n", browc->lmb_name );
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}
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remove_lmb_browser_entry( browc );
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}
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}
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}
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