diff options
Diffstat (limited to 'ldap/c-sdk/libraries/libprldap/ldappr-dns.c')
| -rw-r--r-- | ldap/c-sdk/libraries/libprldap/ldappr-dns.c | 166 |
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 ); +} |