ldap_open(3LDAP)					      LDAP Library Functions						  ldap_open(3LDAP)

NAME

       ldap_open, ldap_init - initialize an LDAP session

SYNOPSIS

       cc [ flag... ] file... -lldap [ library... ]
       #include <lber.h>
       #include <ldap.h>

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

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

DESCRIPTION

       The ldap_open() function initializes an LDAP session and also opens a connection to an LDAP server before it returns to the caller.  Unlike
       ldap_open(), ldap_init() does not open a connection to the LDAP server until an operation, such as a search request, is performed.

       The ldap_open() function is deprecated and should no longer be used. Call ldap_init() instead.

       A list of LDAP hostnames or an IPv4 or IPv6 address can be specified with the ldap_open()  and  ldap_init()  functions.	The  hostname  can
       include a port number, separated from the hostname by a colon (:). A port number included as part of the hostname takes precedence over the
       port parameter. The ldap_open() and ldap_init() functions attempt connections with LDAP hosts in the order listed and return the first suc-
       cessful connection.

PARAMETERS

       These functions support the following parameters.

       host	       The  hostname,  IPv4 or IPv6 address of the host that runs the LDAP server. A space-separated list of hostnames can also be
		       used for this parameter.

       port	       TCP port number of a connection. Supply the constant LDAP_PORT to obtain the default LDAP port of 389. If a host includes a
		       port number, the default parameter is ignored.

RETURN VALUES

       The  ldap_open() and ldap_init() functions return a handle to an LDAP session that contains a pointer to an opaque structure. The structure
       must be passed to subsequent calls for the session. If a session cannot be initialized, the functions return NULL and errno should  be  set
       appropriately.

       Various	aspects  of this opaque structure can be read or written to control the session-wide parameters. Use the ldap_get_option(3LDAP) to
       access the current option values and the ldap_set_option(3LDAP) to set values for these options.

EXAMPLES

       Example 1: Specifying IPv4 and IPv6 Addresses

       LDAP sessions can be initialized with hostnames, IPv4 or IPv6 addresses, such as those shown in the following examples.

       ldap_init("hosta:636 hostb", 389)
       ldap_init("192.168.82.110:389", 389)
       ldap_init("[fec0::114:a00:20ff:ab3d:83ed]", 389)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       errno(3C), ldap(3LDAP), ldap_bind(3LDAP), ldap_get_option(3LDAP), ldap_set_option(3LDAP), attributes(5)

SunOS 5.10							    15 Jan 2004 						  ldap_open(3LDAP)