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98 lines
2.9 KiB
Groff
98 lines
2.9 KiB
Groff
.TH LDAP_COMPARE 3 "RELEASEDATE" "OpenLDAP LDVERSION"
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.\" $OpenLDAP$
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.\" Copyright 1998-2006 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_compare, ldap_compare_s, ldap_compare_ext, ldap_compare_ext_s \- Perform an LDAP compare 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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int ldap_compare_s(ld, dn, attr, value)
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.ft
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LDAP *ld;
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char *dn, *attr, *value;
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.LP
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.ft B
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int ldap_compare(ld, dn, attr, value)
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.ft
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LDAP *ld;
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char *dn, *attr, *value;
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.LP
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.ft B
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int ldap_compare_ext(ld, dn, attr, bvalue, serverctrls, clientctrls, msgidp)
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.ft
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LDAP *ld;
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char *dn, *attr;
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const struct berval *bvalue;
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LDAPControl **serverctrls, **clientctrls;
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int *msgidp;
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.LP
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.ft B
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int ldap_compare_ext_s(ld, dn, attr, bvalue, serverctrls, clientctrls)
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.ft
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LDAP *ld;
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char *dn, *attr;
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const struct berval *bvalue;
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LDAPControl **serverctrls, **clientctrls;
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.SH DESCRIPTION
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The
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.B ldap_compare_s()
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routine is used to perform an LDAP compare operation
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synchronously. It takes \fIdn\fP, the DN of the entry upon which to perform
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the compare, and \fIattr\fP and \fIvalue\fP, the attribute type and value to
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compare to those found in the entry. It returns an LDAP error code, which
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will be LDAP_COMPARE_TRUE if the entry contains the attribute value and
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LDAP_COMPARE_FALSE if it does not. Otherwise, some error code is returned.
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.LP
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The
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.B ldap_compare()
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routine is used to perform an LDAP compare operation
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asynchronously. It takes the same parameters as
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.BR ldap_compare_s() ,
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but returns the message id of the request it initiated. The result of
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the compare can be obtained by a subsequent call to
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.BR ldap_result (3).
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.LP
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The
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.B ldap_compare_ext()
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routine allows server and client controls to be
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specified to extend the compare request. This routine is asynchronous like
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ldap_compare(), but its return value is an LDAP error code. It stores the
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message id of the request in the integer pointed to by msgidp.
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.LP
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The
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.B ldap_compare_ext_s()
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routine is the synchronous version of
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.BR ldap_compare_ext().
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It also returns an LDAP error code indicating success
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or failure of the operation.
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.SH ERRORS
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.B ldap_compare_s()
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returns an LDAP error code which can be interpreted
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by calling one of
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.BR ldap_perror (3)
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and friends. ldap_compare() returns
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-1 if something went wrong initiating the request. It returns the
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non-negative message id of the request if things went ok.
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.LP
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.B ldap_compare_ext_s()
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and
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.B ldap_compare_ext()
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return some Non-zero value other than 0x05 or 0x06 in case of failure.
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0x05 corresponds to LDAP_COMPARE_FALSE and 0x06 corresponds to LDAP_COMPARE_TRUE.
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.SH BUGS
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There is no way to compare binary values, but there should be.
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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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.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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