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ldap_url ()
  • >> ldap_url (3) ( Solaris man: Библиотечные вызовы )
  • ldap_url (3) ( Разные man: Библиотечные вызовы )
  •  

    NAME

    ldap_url, ldap_is_ldap_url, ldap_url_parse, ldap_url_parse_nodn, ldap_free_urldesc, ldap_url_search, ldap_url_search_s, ldap_url_search_st, ldap_dns_to_url, ldap_dn_to_url - LDAP Uniform Resource Locator functions
     
    

    SYNOPSIS

    cc[ flag... ] file... -lldap[ library... ]
    #include <lber.h>
    #include <ldap.h>
    
    int ldap_is_ldap_url(char *url);
    

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

    int ldap_url_parse_nodn(char *url, LDAPURLDesc **ludpp);
    

    ldap_free_urldesc(LDAPURLDesc *ludp);
    

    int ldap_url_search(LDAP *ld, char *url, int attrsonly);
    

    int ldap_url_search_s(LDAP *ld, char *url,
        int attrsonly, LDAPMessage **res);
    

    int ldap_url_search_st(LDAP *ld, char *url, int attrsonly,
        struct timeval *timeout, LDAPMessage **res);
    

    char *ldap_dns_to_url(LDAP *ld, char *dns_name, char *attrs,
        char *scope, char *filter);
    

    char *ldap_dn_to_url(LDAP *ld, char *dn, int nameparts);
    

     

    DESCRIPTION

    These functions support the use of LDAP URLs (Uniform Resource Locators). The following shows the formatting used for LDAP URLs.

    ldap://hostport/dn[?attributes[?scope[?filter]]]
    

    where:

    hostport

    Host name with an optional :portnumber.

    dn

    Base DN to be used for an LDAP search operation.

    attributes

    Comma separated list of attributes to be retrieved.

    scope

    One of these three strings: base one sub (default=base).

    filter

    LDAP search filter as used in a call to ldap_search(3LDAP).

    The following is an example of an LDAP URL:

    ldap://ldap.itd.umich.edu/c=US?o,description?one?o=umich
    

    URLs preceded URL: or wrapped in angle-brackets are tolerated. URLs can also be preceded by URL: and wrapped in angle-brackets.

    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() function 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. See RETURN VALUES for values returned upon error.

    ldap_url_parse_nodn() acts just like ldap_url_parse() but does not require dn in the LDAP URL.

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

    ldap_url_search() initiates an asynchronous LDAP search based on the contents of the url string. This function acts just like ldap_search(3LDAP) except that many search parameters are pulled out of the URL.

    ldap_url_search_s() performs a synchronous LDAP search based on the contents of the url string. This function acts just like ldap_search_s(3LDAP) except that many search parameters are pulled out of the URL.

    ldap_url_search_st() performs a synchronous LDAP URL search with a specified timeout. This function acts just like ldap_search_st(3LDAP) except that many search parameters are pulled out of the URL.

    ldap_dns_to_url() locates the LDAP URL associated with a DNS domain name. The supplied DNS domain name is converted into a distinguished name. The directory entry specified by that distinguished name is searched for a labeled URI attribute. If successful then the corresponding LDAP URL is returned. If unsuccessful then that entry's parent is searched and so on until the target distinguished name is reduced to only two nameparts. If dns_name is NULL then the environment variable LOCALDOMAIN is used. If attrs is not NULL then it is appended to the URL's attribute list. If scope is not NULL then it overrides the URL's scope. If filter is not NULL then it is merged with the URL's filter. If an error is encountered then zero is returned, otherwise a string URL is returned. The caller should free the returned string if it is non-zero.

    ldap_dn_to_url() locates the LDAP URL associated with a distinguished name. The number of nameparts in the supplied distinguished name must be provided. The specified directory entry is searched for a labeledURI attribute. If successful then the LDAP URL is returned. If unsuccessful then that entry's parent is searched and so on until the target distinguished name is reduced to only two nameparts. If an error is encountered then zero is returned, otherwise a string URL is returned. The caller should free the returned string if it is non-zero.  

    RETURN VALUES

    Upon error, one of these values is returned for ldap_url_parse():

    LDAP_URL_ERR_BADSCOPE

    URL scope string is invalid.

    LDAP_URL_ERR_HOSTPORT

    URL hostport is invalid.

    LDAP_URL_ERR_MEM

    Can't allocate memory space.

    LDAP_URL_ERR_NODN

    URL has no DN (required).

    LDAP_URL_ERR_NOTLDAP

    URL doesn't begin with ldap://.

     

    ATTRIBUTES

    See attributes(5) for a description of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE
    Interface StabilityEvolving

     

    SEE ALSO

    ldap(3LDAP), ldap_search(3LDAP), attributes(5)

    An LDAP URL Format, Tim Howes and Mark Smith, December 1995. Internet Draft (work in progress). Currently available at this URL.

    ftp://ds.internic.net/internet-drafts/draft-ietf-asid-ldap-format-03.txt
    


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ATTRIBUTES
    SEE ALSO


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