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-rw-r--r--ldap/c-sdk/libraries/libprldap/ldappr-dns.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/ldap/c-sdk/libraries/libprldap/ldappr-dns.c b/ldap/c-sdk/libraries/libprldap/ldappr-dns.c
new file mode 100644
index 000000000..a88bfe31c
--- /dev/null
+++ b/ldap/c-sdk/libraries/libprldap/ldappr-dns.c
@@ -0,0 +1,166 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * DNS callback functions for libldap that use the NSPR (Netscape
+ * Portable Runtime) thread API.
+ *
+ */
+
+#include "ldappr-int.h"
+
+static LDAPHostEnt *prldap_gethostbyname( const char *name,
+ LDAPHostEnt *result, char *buffer, int buflen, int *statusp,
+ void *extradata );
+static LDAPHostEnt *prldap_gethostbyaddr( const char *addr, int length,
+ int type, LDAPHostEnt *result, char *buffer, int buflen,
+ int *statusp, void *extradata );
+static int prldap_getpeername( LDAP *ld, struct sockaddr *addr,
+ char *buffer, int buflen );
+static LDAPHostEnt *prldap_convert_hostent( LDAPHostEnt *ldhp,
+ PRHostEnt *prhp );
+
+
+/*
+ * Install NSPR DNS functions into ld (if ld is NULL, they are installed
+ * as the default functions for new LDAP * handles).
+ *
+ * Returns 0 if all goes well and -1 if not.
+ */
+int
+prldap_install_dns_functions( LDAP *ld )
+{
+ struct ldap_dns_fns dnsfns;
+
+ memset( &dnsfns, '\0', sizeof(struct ldap_dns_fns) );
+ dnsfns.lddnsfn_bufsize = PR_NETDB_BUF_SIZE;
+ dnsfns.lddnsfn_gethostbyname = prldap_gethostbyname;
+ dnsfns.lddnsfn_gethostbyaddr = prldap_gethostbyaddr;
+ dnsfns.lddnsfn_getpeername = prldap_getpeername;
+ if ( ldap_set_option( ld, LDAP_OPT_DNS_FN_PTRS, (void *)&dnsfns ) != 0 ) {
+ return( -1 );
+ }
+
+ return( 0 );
+}
+
+
+static LDAPHostEnt *
+prldap_gethostbyname( const char *name, LDAPHostEnt *result,
+ char *buffer, int buflen, int *statusp, void *extradata )
+{
+ PRHostEnt prhent;
+
+ if( !statusp || ( *statusp = (int)PR_GetIPNodeByName( name,
+ PRLDAP_DEFAULT_ADDRESS_FAMILY, PR_AI_DEFAULT,
+ buffer, buflen, &prhent )) == PR_FAILURE ) {
+ return( NULL );
+ }
+
+ return( prldap_convert_hostent( result, &prhent ));
+}
+
+
+static LDAPHostEnt *
+prldap_gethostbyaddr( const char *addr, int length, int type,
+ LDAPHostEnt *result, char *buffer, int buflen, int *statusp,
+ void *extradata )
+{
+ PRHostEnt prhent;
+ PRNetAddr iaddr;
+
+ if ( NULL == statusp ) {
+ return( NULL );
+ }
+
+ memset( &iaddr, 0, sizeof( iaddr ));
+ if ( PR_StringToNetAddr( addr, &iaddr ) == PR_FAILURE ) {
+ return( NULL );
+ }
+ PRLDAP_SET_PORT( &iaddr, 0 );
+
+ if( PR_FAILURE == (*statusp =
+ PR_GetHostByAddr(&iaddr, buffer, buflen, &prhent ))) {
+ return( NULL );
+ }
+
+ return( prldap_convert_hostent( result, &prhent ));
+}
+
+
+static int
+prldap_getpeername( LDAP *ld, struct sockaddr *addr, char *buffer, int buflen)
+{
+ PRLDAPIOSocketArg *sa;
+ PRNetAddr iaddr;
+ int ret;
+
+ if (NULL != ld) {
+ ret = prldap_socket_arg_from_ld( ld, &sa );
+ if (ret != LDAP_SUCCESS) {
+ return (-1);
+ }
+ ret = PR_GetPeerName(sa->prsock_prfd, &iaddr);
+ if( ret == PR_FAILURE ) {
+ return( -1 );
+ }
+ *addr = *((struct sockaddr *)&iaddr.raw);
+ ret = PR_NetAddrToString(&iaddr, buffer, buflen);
+ if( ret == PR_FAILURE ) {
+ return( -1 );
+ }
+ return (0);
+ }
+ return (-1);
+}
+
+
+/*
+ * Function: prldap_convert_hostent()
+ * Description: copy the fields of a PRHostEnt struct to an LDAPHostEnt
+ * Returns: the LDAPHostEnt pointer passed in.
+ */
+static LDAPHostEnt *
+prldap_convert_hostent( LDAPHostEnt *ldhp, PRHostEnt *prhp )
+{
+ ldhp->ldaphe_name = prhp->h_name;
+ ldhp->ldaphe_aliases = prhp->h_aliases;
+ ldhp->ldaphe_addrtype = prhp->h_addrtype;
+ ldhp->ldaphe_length = prhp->h_length;
+ ldhp->ldaphe_addr_list = prhp->h_addr_list;
+ return( ldhp );
+}