lib/addns: move DNS client library to the main directory.

Guenther

1 files changed, 0 insertions, 377 deletions

diff --git a/source3/libaddns/dnssock.c b/source3/libaddns/dnssock.c
deleted file mode 100644
index 7c8bd418e5..0000000000
--- a/source3/libaddns/dnssock.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
-  Linux DNS client library implementation
-
-  Copyright (C) 2006 Krishna Ganugapati <krishnag@centeris.com>
-  Copyright (C) 2006 Gerald Carter <jerry@samba.org>
-
-     ** NOTE! The following LGPL license applies to the libaddns
-     ** library. This does NOT imply that all of Samba is released
-     ** under the LGPL
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library 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
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "dns.h"
-#include <sys/time.h>
-#include <unistd.h>
-
-static int destroy_dns_connection(struct dns_connection *conn)
-{
-	return close(conn->s);
-}
-
-/********************************************************************
-********************************************************************/
-
-static DNS_ERROR dns_tcp_open( const char *nameserver,
-			       TALLOC_CTX *mem_ctx,
-			       struct dns_connection **result )
-{
-	uint32_t ulAddress;
-	struct hostent *pHost;
-	struct sockaddr_in s_in;
-	struct dns_connection *conn;
-	int res;
-
-	if (!(conn = talloc(mem_ctx, struct dns_connection))) {
-		return ERROR_DNS_NO_MEMORY;
-	}
-
-	if ( (ulAddress = inet_addr( nameserver )) == INADDR_NONE ) {
-		if ( (pHost = gethostbyname( nameserver )) == NULL ) {
-			TALLOC_FREE(conn);
-			return ERROR_DNS_INVALID_NAME_SERVER;
-		}
-		memcpy( &ulAddress, pHost->h_addr, pHost->h_length );
-	}
-
-	conn->s = socket( PF_INET, SOCK_STREAM, 0 );
-	if (conn->s == -1) {
-		TALLOC_FREE(conn);
-		return ERROR_DNS_CONNECTION_FAILED;
-	}
-
-	talloc_set_destructor(conn, destroy_dns_connection);
-
-	s_in.sin_family = AF_INET;
-	s_in.sin_addr.s_addr = ulAddress;
-	s_in.sin_port = htons( DNS_TCP_PORT );
-
-	res = connect(conn->s, (struct sockaddr*)&s_in, sizeof( s_in ));
-	if (res == -1) {
-		TALLOC_FREE(conn);
-		return ERROR_DNS_CONNECTION_FAILED;
-	}
-
-	conn->hType = DNS_TCP;
-
-	*result = conn;
-	return ERROR_DNS_SUCCESS;
-}
-
-/********************************************************************
-********************************************************************/
-
-static DNS_ERROR dns_udp_open( const char *nameserver,
-			       TALLOC_CTX *mem_ctx,
-			       struct dns_connection **result )
-{
-	unsigned long ulAddress;
-	struct hostent *pHost;
-	struct sockaddr_in RecvAddr;
-	struct dns_connection *conn;
-
-	if (!(conn = talloc(NULL, struct dns_connection))) {
-		return ERROR_DNS_NO_MEMORY;
-	}
-
-	if ( (ulAddress = inet_addr( nameserver )) == INADDR_NONE ) {
-		if ( (pHost = gethostbyname( nameserver )) == NULL ) {
-			TALLOC_FREE(conn);
-			return ERROR_DNS_INVALID_NAME_SERVER;
-		}
-		memcpy( &ulAddress, pHost->h_addr, pHost->h_length );
-	}
-	
-	/* Create a socket for sending data */
-
-	conn->s = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP );
-	if (conn->s == -1) {
-		TALLOC_FREE(conn);
-		return ERROR_DNS_CONNECTION_FAILED;
-	}
-
-	talloc_set_destructor(conn, destroy_dns_connection);
-
-	/* Set up the RecvAddr structure with the IP address of
-	   the receiver (in this example case "123.456.789.1")
-	   and the specified port number. */
-
-	ZERO_STRUCT(RecvAddr);
-	RecvAddr.sin_family = AF_INET;
-	RecvAddr.sin_port = htons( DNS_UDP_PORT );
-	RecvAddr.sin_addr.s_addr = ulAddress;
-
-	conn->hType = DNS_UDP;
-	memcpy( &conn->RecvAddr, &RecvAddr, sizeof( struct sockaddr_in ) );
-
-	*result = conn;
-	return ERROR_DNS_SUCCESS;
-}
-
-/********************************************************************
-********************************************************************/
-
-DNS_ERROR dns_open_connection( const char *nameserver, int32 dwType,
-		    TALLOC_CTX *mem_ctx,
-		    struct dns_connection **conn )
-{
-	switch ( dwType ) {
-	case DNS_TCP:
-		return dns_tcp_open( nameserver, mem_ctx, conn );
-	case DNS_UDP:
-		return dns_udp_open( nameserver, mem_ctx, conn );
-	}
-	
-	return ERROR_DNS_INVALID_PARAMETER;
-}
-
-static DNS_ERROR write_all(int fd, uint8 *data, size_t len)
-{
-	size_t total = 0;
-
-	while (total < len) {
-
-		ssize_t ret = write(fd, data + total, len - total);
-
-		if (ret <= 0) {
-			/*
-			 * EOF or error
-			 */
-			return ERROR_DNS_SOCKET_ERROR;
-		}
-
-		total += ret;
-	}
-
-	return ERROR_DNS_SUCCESS;
-}
-
-static DNS_ERROR dns_send_tcp(struct dns_connection *conn,
-			      const struct dns_buffer *buf)
-{
-	uint16 len = htons(buf->offset);
-	DNS_ERROR err;
-
-	err = write_all(conn->s, (uint8 *)&len, sizeof(len));
-	if (!ERR_DNS_IS_OK(err)) return err;
-
-	return write_all(conn->s, buf->data, buf->offset);
-}
-
-static DNS_ERROR dns_send_udp(struct dns_connection *conn,
-			      const struct dns_buffer *buf)
-{
-	ssize_t ret;
-
-	ret = sendto(conn->s, buf->data, buf->offset, 0,
-		     (struct sockaddr *)&conn->RecvAddr,
-		     sizeof(conn->RecvAddr));
-
-	if (ret != buf->offset) {
-		return ERROR_DNS_SOCKET_ERROR;
-	}
-
-	return ERROR_DNS_SUCCESS;
-}
-
-DNS_ERROR dns_send(struct dns_connection *conn, const struct dns_buffer *buf)
-{
-	if (conn->hType == DNS_TCP) {
-		return dns_send_tcp(conn, buf);
-	}
-
-	if (conn->hType == DNS_UDP) {
-		return dns_send_udp(conn, buf);
-	}
-
-	return ERROR_DNS_INVALID_PARAMETER;
-}
-
-static DNS_ERROR read_all(int fd, uint8 *data, size_t len)
-{
-	size_t total = 0;
-	fd_set rfds;
-	struct timeval tv;
-
-	while (total < len) {
-		ssize_t ret;
-		int fd_ready;
-		
-		FD_ZERO( &rfds );
-		FD_SET( fd, &rfds );
-
-		/* 10 second timeout */
-		tv.tv_sec = 10;
-		tv.tv_usec = 0;
-		
-		fd_ready = select( fd+1, &rfds, NULL, NULL, &tv );
-		if ( fd_ready == 0 ) {
-			/* read timeout */
-			return ERROR_DNS_SOCKET_ERROR;
-		}
-
-		ret = read(fd, data + total, len - total);
-		if (ret <= 0) {
-			/* EOF or error */
-			return ERROR_DNS_SOCKET_ERROR;
-		}
-
-		total += ret;
-	}
-
-	return ERROR_DNS_SUCCESS;
-}
-
-static DNS_ERROR dns_receive_tcp(TALLOC_CTX *mem_ctx,
-				 struct dns_connection *conn,
-				 struct dns_buffer **presult)
-{
-	struct dns_buffer *buf;
-	DNS_ERROR err;
-	uint16 len;
-
-	if (!(buf = TALLOC_ZERO_P(mem_ctx, struct dns_buffer))) {
-		return ERROR_DNS_NO_MEMORY;
-	}
-
-	err = read_all(conn->s, (uint8 *)&len, sizeof(len));
-	if (!ERR_DNS_IS_OK(err)) {
-		return err;
-	}
-
-	buf->size = ntohs(len);
-
-	if (buf->size) {
-		if (!(buf->data = TALLOC_ARRAY(buf, uint8, buf->size))) {
-			TALLOC_FREE(buf);
-			return ERROR_DNS_NO_MEMORY;
-		}
-	} else {
-		buf->data = NULL;
-	}
-
-	err = read_all(conn->s, buf->data, buf->size);
-	if (!ERR_DNS_IS_OK(err)) {
-		TALLOC_FREE(buf);
-		return err;
-	}
-
-	*presult = buf;
-	return ERROR_DNS_SUCCESS;
-}
-
-static DNS_ERROR dns_receive_udp(TALLOC_CTX *mem_ctx,
-				 struct dns_connection *conn,
-				 struct dns_buffer **presult)
-{
-	struct dns_buffer *buf;
-	ssize_t received;
-
-	if (!(buf = TALLOC_ZERO_P(mem_ctx, struct dns_buffer))) {
-		return ERROR_DNS_NO_MEMORY;
-	}
-
-	/*
-	 * UDP based DNS can only be 512 bytes
-	 */
-
-	if (!(buf->data = TALLOC_ARRAY(buf, uint8, 512))) {
-		TALLOC_FREE(buf);
-		return ERROR_DNS_NO_MEMORY;
-	}
-
-	received = recv(conn->s, (void *)buf->data, 512, 0);
-
-	if (received == -1) {
-		TALLOC_FREE(buf);
-		return ERROR_DNS_SOCKET_ERROR;
-	}
-
-	if (received > 512) {
-		TALLOC_FREE(buf);
-		return ERROR_DNS_BAD_RESPONSE;
-	}
-
-	buf->size = received;
-	buf->offset = 0;
-
-	*presult = buf;
-	return ERROR_DNS_SUCCESS;
-}
-
-DNS_ERROR dns_receive(TALLOC_CTX *mem_ctx, struct dns_connection *conn,
-		      struct dns_buffer **presult)
-{
-	if (conn->hType == DNS_TCP) {
-		return dns_receive_tcp(mem_ctx, conn, presult);
-	}
-
-	if (conn->hType == DNS_UDP) {
-		return dns_receive_udp(mem_ctx, conn, presult);
-	}
-
-	return ERROR_DNS_INVALID_PARAMETER;
-}
-
-DNS_ERROR dns_transaction(TALLOC_CTX *mem_ctx, struct dns_connection *conn,
-			  const struct dns_request *req,
-			  struct dns_request **resp)
-{
-	struct dns_buffer *buf = NULL;
-	DNS_ERROR err;
-
-	err = dns_marshall_request(conn, req, &buf);
-	if (!ERR_DNS_IS_OK(err)) goto error;
-
-	err = dns_send(conn, buf);
-	if (!ERR_DNS_IS_OK(err)) goto error;
-	TALLOC_FREE(buf);
-
-	err = dns_receive(mem_ctx, conn, &buf);
-	if (!ERR_DNS_IS_OK(err)) goto error;
-
-	err = dns_unmarshall_request(mem_ctx, buf, resp);
-
- error:
-	TALLOC_FREE(buf);
-	return err;
-}
-
-DNS_ERROR dns_update_transaction(TALLOC_CTX *mem_ctx,
-				 struct dns_connection *conn,
-				 struct dns_update_request *up_req,
-				 struct dns_update_request **up_resp)
-{
-	struct dns_request *resp;
-	DNS_ERROR err;
-
-	err = dns_transaction(mem_ctx, conn, dns_update2request(up_req),
-			      &resp);
-
-	if (!ERR_DNS_IS_OK(err)) return err;
-
-	*up_resp = dns_request2update(resp);
-	return ERROR_DNS_SUCCESS;
-}