r853: remove a real big bunch of unused code

I really think that this is needed to get a better overview of what is currently used
Also this stuff is really out of date

so if we really ever need some of this stuff back,
a 'svn copy' from the SAMBA_3_0 branch should be no big problem...

metze
(This used to be commit 972598d511c64f29bdc849fe58c9c82fbcf6a4a2)

1 files changed, 0 insertions, 349 deletions

diff --git a/source4/nmbd/asyncdns.c b/source4/nmbd/asyncdns.c
deleted file mode 100644
index c86ee69a09..0000000000
--- a/source4/nmbd/asyncdns.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
-   Unix SMB/CIFS implementation.
-   a async DNS handler
-   Copyright (C) Andrew Tridgell 1997-1998
-   
-   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.
-   */
-
-#include "includes.h"
-
-/***************************************************************************
-  Add a DNS result to the name cache.
-****************************************************************************/
-
-static struct name_record *add_dns_result(struct nmb_name *question, struct in_addr addr)
-{
-  int name_type = question->name_type;
-  char *qname = question->name;
-  
-  
-  if (!addr.s_addr) {
-    /* add the fail to WINS cache of names. give it 1 hour in the cache */
-    DEBUG(3,("add_dns_result: Negative DNS answer for %s\n", qname));
-    (void)add_name_to_subnet( wins_server_subnet, qname, name_type,
-                              NB_ACTIVE, 60*60, DNSFAIL_NAME, 1, &addr );
-    return( NULL );
-  }
-
-  /* add it to our WINS cache of names. give it 2 hours in the cache */
-  DEBUG(3,("add_dns_result: DNS gave answer for %s of %s\n", qname, inet_ntoa(addr)));
-
-  return( add_name_to_subnet( wins_server_subnet, qname, name_type,
-                              NB_ACTIVE, 2*60*60, DNS_NAME, 1, &addr ) );
-}
-
-
-
-#ifndef SYNC_DNS
-
-static int fd_in = -1, fd_out = -1;
-static pid_t child_pid = -1;
-static int in_dns;
-
-/* this is the structure that is passed between the parent and child */
-struct query_record {
-	struct nmb_name name;
-	struct in_addr result;
-};
-
-/* a queue of pending requests waiting to be sent to the DNS child */
-static struct packet_struct *dns_queue;
-
-/* the packet currently being processed by the dns child */
-static struct packet_struct *dns_current;
-
-
-/***************************************************************************
-  return the fd used to gather async dns replies. This is added to the select
-  loop
-  ****************************************************************************/
-int asyncdns_fd(void)
-{
-	return fd_in;
-}
-
-/***************************************************************************
-  handle DNS queries arriving from the parent
-  ****************************************************************************/
-static void asyncdns_process(void)
-{
-	struct query_record r;
-	fstring qname;
-
-	DEBUGLEVEL = -1;
-
-	while (1) {
-		if (read_data(fd_in, (char *)&r, sizeof(r)) != sizeof(r)) 
-			break;
-
-		fstrcpy(qname, r.name.name);
-
-		r.result.s_addr = interpret_addr(qname);
-
-		if (write_data(fd_out, (char *)&r, sizeof(r)) != sizeof(r))
-			break;
-	}
-
-	_exit(0);
-}
-
-/**************************************************************************** **
-  catch a sigterm (in the child process - the parent has a different handler
-  see nmbd.c for details).
-  We need a separate term handler here so we don't release any 
-  names that our parent is going to release, or overwrite a 
-  WINS db that our parent is going to write.
- **************************************************************************** */
-
-static void sig_term(int sig)
-{
-  _exit(0);
-}
-
-/***************************************************************************
- Called by the parent process when it receives a SIGTERM - also kills the
- child so we don't get child async dns processes lying around, causing trouble.
-  ****************************************************************************/
-
-void kill_async_dns_child(void)
-{
-	if (child_pid > 0) {
-		kill(child_pid, SIGTERM);
-		child_pid = -1;
-	}
-}
-
-/***************************************************************************
-  create a child process to handle DNS lookups
-  ****************************************************************************/
-void start_async_dns(void)
-{
-	int fd1[2], fd2[2];
-
-	CatchChild();
-
-	if (pipe(fd1) || pipe(fd2)) {
-		DEBUG(0,("can't create asyncdns pipes\n"));
-		return;
-	}
-
-	child_pid = sys_fork();
-
-	if (child_pid) {
-		fd_in = fd1[0];
-		fd_out = fd2[1];
-		close(fd1[1]);
-		close(fd2[0]);
-		DEBUG(0,("started asyncdns process %d\n", (int)child_pid));
-		return;
-	}
-
-	fd_in = fd2[0];
-	fd_out = fd1[1];
-
-	CatchSignal(SIGUSR2, SIG_IGN);
-	CatchSignal(SIGUSR1, SIG_IGN);
-	CatchSignal(SIGHUP, SIG_IGN);
-        CatchSignal(SIGTERM, SIGNAL_CAST sig_term );
-
-	asyncdns_process();
-}
-
-
-/***************************************************************************
-check if a particular name is already being queried
-  ****************************************************************************/
-static BOOL query_current(struct query_record *r)
-{
-	return dns_current &&
-		nmb_name_equal(&r->name, 
-			   &dns_current->packet.nmb.question.question_name);
-}
-
-
-/***************************************************************************
-  write a query to the child process
-  ****************************************************************************/
-static BOOL write_child(struct packet_struct *p)
-{
-	struct query_record r;
-
-	r.name = p->packet.nmb.question.question_name;
-
-	return write_data(fd_out, (char *)&r, sizeof(r)) == sizeof(r);
-}
-
-/***************************************************************************
-  check the DNS queue
-  ****************************************************************************/
-void run_dns_queue(void)
-{
-	struct query_record r;
-	struct packet_struct *p, *p2;
-	struct name_record *namerec;
-	int size;
-
-	if (fd_in == -1)
-		return;
-
-        /* Allow SIGTERM to kill us. */
-        BlockSignals(False, SIGTERM);
-
-	if (!process_exists(child_pid)) {
-		close(fd_in);
-		start_async_dns();
-	}
-
-	if ((size=read_data(fd_in, (char *)&r, sizeof(r))) != sizeof(r)) {
-		if (size) {
-			DEBUG(0,("Incomplete DNS answer from child!\n"));
-			fd_in = -1;
-		}
-                BlockSignals(True, SIGTERM);
-		return;
-	}
-
-        BlockSignals(True, SIGTERM);
-
-	namerec = add_dns_result(&r.name, r.result);
-
-	if (dns_current) {
-		if (query_current(&r)) {
-			DEBUG(3,("DNS calling send_wins_name_query_response\n"));
-			in_dns = 1;
-                        if(namerec == NULL)
-                          send_wins_name_query_response(NAM_ERR, dns_current, NULL);
-                        else
-			  send_wins_name_query_response(0,dns_current,namerec);
-			in_dns = 0;
-		}
-
-		dns_current->locked = False;
-		free_packet(dns_current);
-		dns_current = NULL;
-	}
-
-	/* loop over the whole dns queue looking for entries that
-	   match the result we just got */
-	for (p = dns_queue; p;) {
-		struct nmb_packet *nmb = &p->packet.nmb;
-		struct nmb_name *question = &nmb->question.question_name;
-
-		if (nmb_name_equal(question, &r.name)) {
-			DEBUG(3,("DNS calling send_wins_name_query_response\n"));
-			in_dns = 1;
-                        if(namerec == NULL)
-			  send_wins_name_query_response(NAM_ERR, p, NULL);
-                        else
-                          send_wins_name_query_response(0,p,namerec);
-			in_dns = 0;
-			p->locked = False;
-
-			if (p->prev)
-				p->prev->next = p->next;
-			else
-				dns_queue = p->next;
-			if (p->next)
-				p->next->prev = p->prev;
-			p2 = p->next;
-			free_packet(p);
-			p = p2;
-		} else {
-			p = p->next;
-		}
-	}
-
-	if (dns_queue) {
-		dns_current = dns_queue;
-		dns_queue = dns_queue->next;
-		if (dns_queue) dns_queue->prev = NULL;
-		dns_current->next = NULL;
-
-		if (!write_child(dns_current)) {
-			DEBUG(3,("failed to send DNS query to child!\n"));
-			return;
-		}
-	}
-
-}
-
-/***************************************************************************
-queue a DNS query
-  ****************************************************************************/
-BOOL queue_dns_query(struct packet_struct *p,struct nmb_name *question,
-		     struct name_record **n)
-{
-	if (in_dns || fd_in == -1)
-		return False;
-
-	if (!dns_current) {
-		if (!write_child(p)) {
-			DEBUG(3,("failed to send DNS query to child!\n"));
-			return False;
-		}
-		dns_current = p;
-		p->locked = True;
-	} else {
-		p->locked = True;
-		p->next = dns_queue;
-		p->prev = NULL;
-		if (p->next)
-			p->next->prev = p;
-		dns_queue = p;
-	}
-
-	DEBUG(3,("added DNS query for %s\n", nmb_namestr(question)));
-	return True;
-}
-
-#else
-
-
-/***************************************************************************
-  we use this when we can't do async DNS lookups
-  ****************************************************************************/
-BOOL queue_dns_query(struct packet_struct *p,struct nmb_name *question,
-		     struct name_record **n)
-{
-	char *qname = question->name;
-	struct in_addr dns_ip;
-
-	DEBUG(3,("DNS search for %s - ", nmb_namestr(question)));
-
-        /* Unblock TERM signal so we can be killed in DNS lookup. */
-        BlockSignals(False, SIGTERM);
-
-	dns_ip.s_addr = interpret_addr(qname);
-
-        /* Re-block TERM signal. */
-        BlockSignals(True, SIGTERM);
-
-	*n = add_dns_result(question, dns_ip);
-        if(*n == NULL)
-          send_wins_name_query_response(NAM_ERR, p, NULL);
-        else
-          send_wins_name_query_response(0, p, *n);
-	return False;
-}
-
-/***************************************************************************
- With sync dns there is no child to kill on SIGTERM.
-  ****************************************************************************/
-void kill_async_dns_child(void)
-{
-  return;
-}
-#endif