r25154: move winbindd code into winbindd/

metze
(This used to be commit 3ac7566ae14c48ff9b0f6b232e0ec4b2f73df558)

1 files changed, 234 insertions, 0 deletions

diff --git a/source3/winbindd/winbindd_wins.c b/source3/winbindd/winbindd_wins.c
new file mode 100644
index 0000000000..f84dfdf2de
--- /dev/null
+++ b/source3/winbindd/winbindd_wins.c
@@ -0,0 +1,234 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Winbind daemon - WINS related functions
+
+   Copyright (C) Andrew Tridgell 1999
+   Copyright (C) Herb Lewis 2002
+   
+   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 "winbindd.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+/* Use our own create socket code so we don't recurse.... */
+
+static int wins_lookup_open_socket_in(void)
+{
+	struct sockaddr_in sock;
+	int val=1;
+	int res;
+
+	memset((char *)&sock,'\0',sizeof(sock));
+
+#ifdef HAVE_SOCK_SIN_LEN
+	sock.sin_len = sizeof(sock);
+#endif
+	sock.sin_port = 0;
+	sock.sin_family = AF_INET;
+	sock.sin_addr.s_addr = interpret_addr("0.0.0.0");
+	res = socket(AF_INET, SOCK_DGRAM, 0);
+	if (res == -1)
+		return -1;
+
+	setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val));
+#ifdef SO_REUSEPORT
+	setsockopt(res,SOL_SOCKET,SO_REUSEPORT,(char *)&val,sizeof(val));
+#endif /* SO_REUSEPORT */
+
+	/* now we've got a socket - we need to bind it */
+
+	if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) < 0) {
+		close(res);
+		return(-1);
+	}
+
+	set_socket_options(res,"SO_BROADCAST");
+
+	return res;
+}
+
+
+static NODE_STATUS_STRUCT *lookup_byaddr_backend(char *addr, int *count)
+{
+	int fd;
+	struct in_addr  ip;
+	struct nmb_name nname;
+	NODE_STATUS_STRUCT *status;
+
+	fd = wins_lookup_open_socket_in();
+	if (fd == -1)
+		return NULL;
+
+	make_nmb_name(&nname, "*", 0);
+	ip = *interpret_addr2(addr);
+	status = node_status_query(fd,&nname,ip, count, NULL);
+
+	close(fd);
+	return status;
+}
+
+static struct in_addr *lookup_byname_backend(const char *name, int *count)
+{
+	int fd;
+	struct ip_service *ret = NULL;
+	struct in_addr *return_ip = NULL;
+	int j, i, flags = 0;
+
+	*count = 0;
+
+	/* always try with wins first */
+	if (NT_STATUS_IS_OK(resolve_wins(name,0x20,&ret,count))) {
+		if ( *count == 0 )
+			return NULL;
+		if ( (return_ip = SMB_MALLOC_ARRAY(struct in_addr, *count)) == NULL ) {
+			free( ret );
+			return NULL;
+		}
+
+		/* copy the IP addresses */
+		for ( i=0; i<(*count); i++ ) 
+			return_ip[i] = ret[i].ip;
+		
+		free( ret );
+		return return_ip;
+	}
+
+	fd = wins_lookup_open_socket_in();
+	if (fd == -1) {
+		return NULL;
+	}
+
+	/* uggh, we have to broadcast to each interface in turn */
+	for (j=iface_count() - 1;
+	     j >= 0;
+	     j--) {
+		struct in_addr *bcast = iface_n_bcast(j);
+		return_ip = name_query(fd,name,0x20,True,True,*bcast,count, &flags, NULL);
+		if (return_ip) {
+			break;
+		}
+	}
+
+	close(fd);
+	return return_ip;
+}
+
+/* Get hostname from IP  */
+
+void winbindd_wins_byip(struct winbindd_cli_state *state)
+{
+	fstring response;
+	int i, count, maxlen, size;
+	NODE_STATUS_STRUCT *status;
+
+	/* Ensure null termination */
+	state->request.data.winsreq[sizeof(state->request.data.winsreq)-1]='\0';
+
+	DEBUG(3, ("[%5lu]: wins_byip %s\n", (unsigned long)state->pid,
+		state->request.data.winsreq));
+
+	*response = '\0';
+	maxlen = sizeof(response) - 1;
+
+	if ((status = lookup_byaddr_backend(state->request.data.winsreq, &count))){
+	    size = strlen(state->request.data.winsreq);
+	    if (size > maxlen) {
+		SAFE_FREE(status);
+		request_error(state);
+		return;
+	    }
+	    fstrcat(response,state->request.data.winsreq);
+	    fstrcat(response,"\t");
+	    for (i = 0; i < count; i++) {
+		/* ignore group names */
+		if (status[i].flags & 0x80) continue;
+		if (status[i].type == 0x20) {
+			size = sizeof(status[i].name) + strlen(response);
+			if (size > maxlen) {
+			    SAFE_FREE(status);
+			    request_error(state);
+			    return;
+			}
+			fstrcat(response, status[i].name);
+			fstrcat(response, " ");
+		}
+	    }
+	    /* make last character a newline */
+	    response[strlen(response)-1] = '\n';
+	    SAFE_FREE(status);
+	}
+	fstrcpy(state->response.data.winsresp,response);
+	request_ok(state);
+}
+
+/* Get IP from hostname */
+
+void winbindd_wins_byname(struct winbindd_cli_state *state)
+{
+	struct in_addr *ip_list;
+	int i, count, maxlen, size;
+	fstring response;
+	char * addr;
+
+	/* Ensure null termination */
+	state->request.data.winsreq[sizeof(state->request.data.winsreq)-1]='\0';
+
+	DEBUG(3, ("[%5lu]: wins_byname %s\n", (unsigned long)state->pid,
+		state->request.data.winsreq));
+
+	*response = '\0';
+	maxlen = sizeof(response) - 1;
+
+	if ((ip_list = lookup_byname_backend(state->request.data.winsreq,&count))){
+		for (i = count; i ; i--) {
+		    addr = inet_ntoa(ip_list[i-1]);
+		    size = strlen(addr);
+		    if (size > maxlen) {
+			SAFE_FREE(ip_list);
+			request_error(state);
+			return;
+		    }
+		    if (i != 0) {
+			/* Clear out the newline character */
+		        /* But only if there is something in there, 
+			   otherwise we clobber something in the stack */
+			if (strlen(response))
+				response[strlen(response)-1] = ' '; 
+		    }
+		    fstrcat(response,addr);
+		    fstrcat(response,"\t");
+		}
+		size = strlen(state->request.data.winsreq) + strlen(response);
+		if (size > maxlen) {
+		    SAFE_FREE(ip_list);
+		    request_error(state);
+		    return;
+		}   
+		fstrcat(response,state->request.data.winsreq);
+		fstrcat(response,"\n");
+		SAFE_FREE(ip_list);
+	} else {
+		request_error(state);
+		return;
+	}
+
+	fstrcpy(state->response.data.winsresp,response);
+
+	request_ok(state);
+}