LDAP_MODIFY(3)LDAP_MODIFY(3)NAME
ldap_modify, ldap_modify_s - Perform an LDAP modify opera-
tion
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-terminated 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 modifica-
tion 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_val-
ues, 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 modifications, the given values are
deleted from the entry, removing the attribute if no val-
ues 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 cre-
ated 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.
ERRORSldap_modify_s() returns an ldap error code, either
LDAP_SUCCESS or an error if there was trouble. ldap_mod-
ify() returns -1 in case of trouble, setting the ld_errno
field of ld.
SEE ALSOldap(3), ldap_error(3), ldap_add(3)ACKNOWLEDGEMENTS
OpenLDAP is developed and maintained by The OpenLDAP Pro-
ject (http://www.openldap.org/). OpenLDAP is derived from
University of Michigan LDAP 3.3 Release.
OpenLDAP LDVERSION RELEASEDATE LDAP_MODIFY(3)
