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123 lines
3.5 KiB
Groff
123 lines
3.5 KiB
Groff
.TH LDAP_MODIFY 3 "RELEASEDATE" "OpenLDAP LDVERSION"
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.\" $OpenLDAP$
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.\" Copyright 1998-2003 The OpenLDAP Foundation All Rights Reserved.
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.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
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.SH NAME
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ldap_modify, ldap_modify_s \- Perform an LDAP modify operation
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.SH LIBRARY
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OpenLDAP LDAP (libldap, -lldap)
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.SH SYNOPSIS
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.nf
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.ft B
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#include <ldap.h>
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.LP
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.ft B
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.nf
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int ldap_modify(ld, dn, mods)
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.ft
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LDAP *ld;
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char *dn;
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LDAPMod *mods[];
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.LP
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.ft B
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.nf
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int ldap_modify_s(ld, dn, mods)
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.ft
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LDAP *ld;
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char *dn;
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LDAPMod *mods[];
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.LP
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.ft B
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.nf
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void ldap_mods_free( mods, freemods )
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.ft
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LDAPMod **mods;
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int freemods;
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.SH DESCRIPTION
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The routine
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.B ldap_modify_s()
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is used to perform an LDAP modify operation.
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\fIdn\fP is the DN of the entry to modify, and \fImods\fP is a
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null-terminated array of modifications to make to the entry. Each element
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of the \fImods\fP array is a pointer to an LDAPMod structure, which is
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defined below.
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.LP
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.nf
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.ft B
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typedef struct ldapmod {
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int mod_op;
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char *mod_type;
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union {
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char **modv_strvals;
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struct berval **modv_bvals;
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} mod_vals;
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struct ldapmod *mod_next;
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} LDAPMod;
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#define mod_values mod_vals.modv_strvals
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#define mod_bvalues mod_vals.modv_bvals
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.ft
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.fi
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.LP
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The \fImod_op\fP field is used to specify the type of modification to
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perform and should be one of LDAP_MOD_ADD, LDAP_MOD_DELETE, or
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LDAP_MOD_REPLACE. The \fImod_type\fP and \fImod_values\fP fields
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specify the attribute type to modify and a null-terminated array of
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values to add, delete, or replace respectively. The \fImod_next\fP
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field is used only by the LDAP server and may be ignored by the
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client.
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.LP
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If you need to specify a non-string value (e.g., to add a
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photo or audio attribute value), you should set \fImod_op\fP to the
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logical OR of the operation as above (e.g., LDAP_MOD_REPLACE)
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and the constant LDAP_MOD_BVALUES. In this case, \fImod_bvalues\fP
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should be used instead of \fImod_values\fP, and it should point to
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a null-terminated array of struct bervals, as defined in <lber.h>.
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.LP
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For LDAP_MOD_ADD modifications, the given values are added to the
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entry, creating the attribute if necessary. For LDAP_MOD_DELETE
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modifications, the given values are deleted from the entry, removing
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the attribute if no values remain. If the entire attribute is to be deleted,
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the \fImod_values\fP field should be set to NULL. For LDAP_MOD_REPLACE
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modifications, the attribute will have the listed values after the
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modification, having been created if necessary. All modifications are
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performed in the order in which they are listed.
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.LP
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.B
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ldap_modify_s()
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returns the LDAP error code resulting from the
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modify operation. This code can be interpreted by
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.BR ldap_perror (3)
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and friends.
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.LP
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The
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.B ldap_modify()
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operation works the same way as
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.BR ldap_modify_s() ,
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except that it is asynchronous, returning the message id of the
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request it initiates, or -1 on error. The result of the operation
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can be obtained by calling
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.BR ldap_result (3).
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.LP
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.B ldap_mods_free()
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can be used to free each element of a NULL-terminated
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array of mod structures. If \fIfreemods\fP is non-zero, the
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\fImods\fP pointer itself is freed as well.
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.SH ERRORS
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.B ldap_modify_s()
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returns an ldap error code, either LDAP_SUCCESS or
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an error if there was trouble.
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.B ldap_modify()
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returns -1 in case
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of trouble, setting the
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.B ld_errno
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field of \fIld\fP.
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.SH SEE ALSO
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.BR ldap (3),
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.BR ldap_error (3),
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.BR ldap_add (3)
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.SH ACKNOWLEDGEMENTS
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.B OpenLDAP
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is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).
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.B OpenLDAP
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is derived from University of Michigan LDAP 3.3 Release.
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