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ldap_url(3)




LDAP_URL(3)            C LIBRARY FUNCTIONS            LDAP_URL(3)


NAME

     ldap_is_ldap_url, ldap_url_parse, ldap_free_urldesc  -  LDAP
     Uniform Resource Locator routines


LIBRARY

     OpenLDAP LDAP (libldap, -lldap)


SYNOPSIS

     #include <ldap.h>

     int ldap_is_ldap_url( const char *url )

     int ldap_url_parse( const char *url, LDAPURLDesc **ludpp )

     typedef struct ldap_url_desc {
         char *      lud_scheme;     /* URI scheme */
         char        lud_host;       /* LDAP host to contact */
         int         lud_port;       /* port on host */
         char *      lud_dn;         /* base for search */
         char **     lud_attrs;      /* list of attributes */
         int         lud_scope;      /* a LDAP_SCOPE_... value */
         char *      lud_filter;     /* LDAP search filter */
         char **     lud_exts;       /* LDAP extensions */
         int         lud_crit_exts;  /* true if any extension is critical */
         /* may contain additional fields for internal use */
     } LDAPURLDesc;

     ldap_free_urldesc( LDAPURLDesc *ludp )


DESCRIPTION

     These  routines  support  the  use  of  LDAP  URLs  (Uniform
     Resource  Locators) as detailed in RFC 2255.  LDAP URLs look
     like this:

       ldap://hostport/dn[?attrs[?scope[?filter[?exts]]]]

     where:
       hostport is a host name with an optional ":portnumber"
       dn is the search base
       attrs is a comma separated list of attributes to request
       scope is one of these three strings:
         base one sub (default=base)
       filter is filter
       exts are recognized set of LDAP and/or API extensions.

     Example:
       ldap://ldap.example.net/dc=example,dc=net?cn,sn?sub?(cn=*)

     URLs that are wrapped in angle-brackets and/or  preceded  by
     "URL:"  are  also  tolerated.   Alternative  schemes such as
     ldaps:// and ldapi:// may be parsed using the below routines

OpenLDAP LDVERSION  Last change: RELEASEDATE                    1

LDAP_URL(3)            C LIBRARY FUNCTIONS            LDAP_URL(3)

     as well.

     ldap_is_ldap_url() returns a non-zero  value  if  url  looks
     like an LDAP URL (as opposed to some other kind of URL).  It
     can  be  used  as  a  quick  check  for  an  LDAP  URL;  the
     ldap_url_parse()  routine  should be used if a more thorough
     check is needed.

     ldap_url_parse() breaks down an LDAP URL passed in url  into
     its  component  pieces.  If successful, zero is returned, an
     LDAP URL description is allocated, filled in, and  ludpp  is
     set  to  point  to  it.   If an error occurs, a non-zero URL
     error code is returned.

     ldap_free_urldesc() should be called to  free  an  LDAP  URL
     description    that    was   obtained   from   a   call   to
     ldap_url_parse().


SEE ALSO

     ldap(3)

     The LDAP URL Format, RFC 2255, Tim  Howes  and  Mark  Smith,
     December 1997.


ACKNOWLEDGEMENTS

     OpenLDAP is developed and maintained by The OpenLDAP Project
     (http://www.openldap.org/).    OpenLDAP   is   derived  from
     University of Michigan LDAP 3.3 Release.

OpenLDAP LDVERSION  Last change: RELEASEDATE                    2


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