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LDAP_OPEN(3)               Library Functions Manual               LDAP_OPEN(3)

       ldap_init, ldap_initialize, ldap_open - Initialize the LDAP library and
       open a connection to an LDAP server

       OpenLDAP LDAP (libldap, -lldap)

       #include <ldap.h>

       LDAP *ldap_open(host, port)
       char *host;
       int port;

       LDAP *ldap_init(host, port)
       char *host;
       int port;

       int ldap_initialize(ldp, uri)
       LDAP **ldp;
       char *uri;

       int ldap_set_urllist_proc(ld, proc, params)
       LDAP *ld;
       LDAP_URLLIST_PROC *proc;
       void *params;

       int (LDAP_URLLIST_PROC)(ld, urllist, url, params);
       LDAP *ld;
       LDAPURLDesc **urllist;
       LDAPURLDesc **url;
       void *params;

       #include <ldap_pvt.h>

       int ldap_init_fd(fd, proto, uri, ldp)
       ber_socket_t fd;
       int proto;
       char *uri;
       LDAP **ldp;

       ldap_open() opens a connection to an LDAP server and allocates an  LDAP
       structure which is used to identify the connection and to maintain per-
       connection information.  ldap_init() allocates an  LDAP  structure  but
       does  not  open  an initial connection.  ldap_initialize() allocates an
       LDAP structure but does not open an initial connection.  ldap_init_fd()
       allocates  an  LDAP  structure using an existing connection on the pro-
       vided socket.  One of these routines must be called before  any  opera-
       tions are attempted.

       ldap_open()  takes  host, the hostname on which the LDAP server is run-
       ning, and port, the port number to which to connect.   If  the  default
       IANA-assigned port of 389 is desired, LDAP_PORT should be specified for
       port.  The host parameter may contain a blank-separated list  of  hosts
       to  try  to  connect  to,  and  each host may optionally by of the form
       host:port.  If present, the  :port  overrides  the  port  parameter  to
       ldap_open().   Upon successfully making a connection to an LDAP server,
       ldap_open() returns a pointer to an opaque LDAP structure, which should
       be  passed to subsequent calls to ldap_bind(), ldap_search(), etc. Cer-
       tain fields in the LDAP structure can be set to  indicate  size  limit,
       time  limit,  and  how  aliases are handled during operations; read and
       write access to those fields must occur by  calling  ldap_get_option(3)
       and ldap_set_option(3) respectively, whenever possible.

       ldap_init()  acts just like ldap_open(), but does not open a connection
       to the LDAP server.  The actual connection open  will  occur  when  the
       first operation is attempted.

       ldap_initialize()  acts  like  ldap_init(),  but  it returns an integer
       indicating either success or the failure reason, and it allows to spec-
       ify  details  for the connection in the schema portion of the URI.  The
       uri parameter may be a comma- or whitespace-separated list of URIs con-
       taining  only  the  schema,  the host, and the port fields.  Apart from
       ldap, other (non-standard) recognized values of the  schema  field  are
       ldaps (LDAP over TLS), ldapi (LDAP over IPC), and cldap (connectionless
       LDAP).  If other fields are present, the behavior is undefined.

       At this time, ldap_open() and ldap_init() are deprecated  in  favor  of
       ldap_initialize(),  essentially  because the latter allows to specify a
       schema in the URI and it explicitly returns an error code.

       ldap_init_fd() allows an LDAP structure  to  be  initialized  using  an
       already-opened  connection.  The  proto  parameter  should  be  one  of
       LDAP_PROTO_TCP, LDAP_PROTO_UDP,  or  LDAP_PROTO_IPC  for  a  connection
       using TCP, UDP, or IPC, respectively. The value LDAP_PROTO_EXT may also
       be specified if user-supplied sockbuf handlers are going  to  be  used.
       Note  that  support for UDP is not implemented unless libldap was built
       with LDAP_CONNECTIONLESS defined.  The uri parameter may optionally  be
       provided for informational purposes.

       ldap_set_urllist_proc() allows to set a function proc of type LDAP_URL-
       LIST_PROC that is called when a successful  connection  can  be  estab-
       lished.   This  function  receives the list of URIs parsed from the uri
       string originally passed to ldap_initialize(), and the  one  that  suc-
       cessfully  connected.   The  function  may manipulate the URI list; the
       typical use consists in moving the successful URI to the  head  of  the
       list,  so  that subsequent attempts to connect to one of the URIs using
       the same LDAP handle will try it first.  If ld is null, proc is set  as
       a global parameter that is inherited by all handlers within the process
       that  are  created  after  the  call  to  ldap_set_urllist_proc().   By
       default,  no LDAP_URLLIST_PROC is set.  In a multithreaded environment,
       ldap_set_urllist_proc() must be called before any concurrent  operation
       using the LDAP handle is started.

       Note:  the first call into the LDAP library also initializes the global
       options for the library. As such  the  first  call  should  be  single-
       threaded or otherwise protected to insure that only one call is active.
       It is recommended that ldap_get_option() or ldap_set_option()  be  used
       in the program's main thread before any additional threads are created.
       See ldap_get_option(3).

       If an error occurs, ldap_open() and ldap_init() will  return  NULL  and
       errno    should    be   set   appropriately.    ldap_initialize()   and
       ldap_init_fd() will directly return the LDAP  code  associated  to  the
       error (or LDAP_SUCCESS in case of success); errno should be set as well
       whenever appropriate.  ldap_set_urllist_proc()  returns  LDAP_OPT_ERROR
       on error, and LDAP_OPT_SUCCESS on success.

       ldap(3),  ldap_bind(3),  ldap_get_option(3),  ldap_set_option(3), lber-
       sockbuf(3), errno(3)

       OpenLDAP Software is developed and maintained by The  OpenLDAP  Project
       <>.   OpenLDAP Software is derived from Univer-
       sity of Michigan LDAP 3.3 Release.

OpenLDAP                          2014/09/20                      LDAP_OPEN(3)

Czas wygenerowania: 0.00053 sek.

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