LDAP_MODIFY(3)						     Library Functions Manual						    LDAP_MODIFY(3)

NAME

       ldap_modify, ldap_modify_s - Perform an LDAP modify operation

LIBRARY

       OpenLDAP LDAP (libldap, -lldap)

SYNOPSIS

       #include <ldap.h>

       int ldap_modify(ld, dn, mods)
       LDAP *ld;
       char *dn;
       LDAPMod *mods[];

       int ldap_modify_s(ld, dn, mods)
       LDAP *ld;
       char *dn;
       LDAPMod *mods[];

       void ldap_mods_free( mods, freemods )
       LDAPMod **mods;
       int freemods;

DESCRIPTION

       The  routine  ldap_modify_s()  is used to perform an LDAP modify operation.  dn is the DN of the entry to modify, and mods is a null-termi-
       nated array of modifications to make to the entry.  Each element of the mods array is a pointer to an LDAPMod structure, which  is  defined
       below.

	    typedef struct ldapmod {
		int mod_op;
		char *mod_type;
		union {
		 char **modv_strvals;
		 struct berval **modv_bvals;
		} mod_vals;
		struct ldapmod *mod_next;
	    } LDAPMod;
	    #define mod_values mod_vals.modv_strvals
	    #define mod_bvalues mod_vals.modv_bvals

       The  mod_op  field  is  used  to  specify  the  type  of  modification  to  perform  and should be one of LDAP_MOD_ADD, LDAP_MOD_DELETE, or
       LDAP_MOD_REPLACE.  The mod_type and mod_values fields specify the attribute type to modify and a null-terminated array of  values  to  add,
       delete, or replace respectively.  The mod_next field is used only by the LDAP server and may be ignored by the client.

       If  you	need to specify a non-string value (e.g., to add a photo or audio attribute value), you should set mod_op to the logical OR of the
       operation as above (e.g., LDAP_MOD_REPLACE) and the constant LDAP_MOD_BVALUES.  In  this  case,	mod_bvalues  should  be  used  instead	of
       mod_values, and it should point to a null-terminated array of struct bervals, as defined in <lber.h>.

       For  LDAP_MOD_ADD modifications, the given values are added to the entry, creating the attribute if necessary.  For LDAP_MOD_DELETE modifi-
       cations, the given values are deleted from the entry, removing the attribute if no values  remain.   If	the  entire  attribute	is  to	be
       deleted,  the  mod_values field should be set to NULL.  For LDAP_MOD_REPLACE modifications, the attribute will have the listed values after
       the modification, having been created if necessary.  All modifications are performed in the order in which they are listed.

       ldap_modify_s() returns the LDAP error code resulting from the modify operation.  This  code  can  be  interpreted  by  ldap_perror(3)  and
       friends.

       The  ldap_modify() operation works the same way as ldap_modify_s(), except that it is asynchronous, returning the message id of the request
       it initiates, or -1 on error.  The result of the operation can be obtained by calling ldap_result(3).

       ldap_mods_free() can be used to free each element of a NULL-terminated array of mod structures.	If freemods is non-zero, the mods  pointer
       itself is freed as well.

ERRORS

       ldap_modify_s()	returns  an  ldap  error  code, either LDAP_SUCCESS or an error if there was trouble.  ldap_modify() returns -1 in case of
       trouble, setting the ld_errno field of ld.

SEE ALSO

       ldap(3), ldap_error(3), ldap_add(3)

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 2.1.X							    RELEASEDATE 						    LDAP_MODIFY(3)