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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | DEPRECATED INTERFACES | SEE ALSO | ACKNOWLEDGEMENTS | COLOPHON |
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LDAP_MODIFY(3) Library Functions Manual LDAP_MODIFY(3)
ldap_modify_ext, ldap_modify_ext_s - Perform an LDAP modify
operation
OpenLDAP LDAP (libldap, -lldap)
#include <ldap.h>
int ldap_modify_ext(
LDAP *ld,
char *dn,
LDAPMod *mods[],
LDAPControl **sctrls,
LDAPControl **cctrls,
int *msgidp );
int ldap_modify_ext_s(
LDAP *ld,
char *dn,
LDAPMod *mods[],
LDAPControl **sctrls,
LDAPControl **cctrls );
void ldap_mods_free(
LDAPMod **mods,
int freemods );
The routine ldap_modify_ext_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;
} 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.
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
modifications, 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_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.
ldap_modify_ext_s() returns a code indicating success or, in the
case of failure, indicating the nature of the failure. See
ldap_error(3) for details
The ldap_modify_ext() operation works the same way as
ldap_modify_ext_s(), except that it is asynchronous. The integer
that msgidp points to is set to the message id of the modify
request. The result of the operation can be obtained by calling
ldap_result(3).
Both ldap_modify_ext() and ldap_modify_ext_s() allows server and
client controls to be passed in via the sctrls and cctrls
parameters, respectively.
The ldap_modify() and ldap_modify_s() routines are deprecated in
favor of the ldap_modify_ext() and ldap_modify_ext_s() routines,
respectively.
Deprecated interfaces generally remain in the library. The macro
LDAP_DEPRECATED can be defined to a non-zero value (e.g.,
-DLDAP_DEPRECATED=1) when compiling program designed to use
deprecated interfaces. It is recommended that developers writing
new programs, or updating old programs, avoid use of deprecated
interfaces. Over time, it is expected that documentation (and,
eventually, support) for deprecated interfaces to be eliminated.
ldap(3), ldap_error(3),
OpenLDAP Software is developed and maintained by The OpenLDAP
Project <http://www.openldap.org/>. OpenLDAP Software is derived
from the University of Michigan LDAP 3.3 Release.
This page is part of the OpenLDAP (an open source implementation
of the Lightweight Directory Access Protocol) project.
Information about the project can be found at
⟨http://www.openldap.org/⟩. If you have a bug report for this
manual page, see ⟨http://www.openldap.org/its/⟩. This page was
obtained from the project's upstream Git repository
⟨https://git.openldap.org/openldap/openldap.git⟩ on 2025-08-11.
(At that time, the date of the most recent commit that was found
in the repository was 2025-08-05.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
OpenLDAP LDVERSION RELEASEDATE LDAP_MODIFY(3)
Pages that refer to this page: ldapmodify(1), ldap_add(3), ldap_get_option(3), ldap_rename(3), ldap_result(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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