ldap_value_free_len(3)

1LDAP_GET_VALUES(3)         Library Functions Manual         LDAP_GET_VALUES(3)
2
3
4

NAME

6       ldap_get_values,  ldap_get_values_len,  ldap_count_values - LDAP attri‐
7       bute value handling routines
8

LIBRARY

10       OpenLDAP LDAP (libldap, -lldap)
11

SYNOPSIS

13       #include <ldap.h>
14
15
16       char **ldap_get_values(ld, entry, attr)
17       LDAP *ld;
18       LDAPMessage *entry;
19       char *attr;
20
21       struct berval **ldap_get_values_len(ld, entry, attr)
22       LDAP *ld;
23       LDAPMessage *entry;
24       char *attr;
25
26       int ldap_count_values(vals)
27       char **vals;
28
29       int ldap_count_values_len(vals)
30       struct berval **vals;
31
32       void ldap_value_free(vals)
33       char **vals;
34
35       void ldap_value_free_len(vals)
36       struct berval **vals;
37

DESCRIPTION

39       These routines are used to retrieve  and  manipulate  attribute  values
40       from  an LDAP entry as returned by ldap_first_entry(3) or ldap_next_en‐
41       try(3).  ldap_get_values() takes the entry and the attribute attr whose
42       values  are  desired  and returns a NULL-terminated array of the attri‐
43       bute's values.   attr  may  be  an  attribute  type  as  returned  from
44       ldap_first_attribute(3)  or ldap_next_attribute(3), or if the attribute
45       type is known it can simply be given.
46
47       The  number  of  values  in  the  array  can  be  counted  by   calling
48       ldap_count_values().   The  array  of  values  returned can be freed by
49       calling ldap_value_free().
50
51       If the attribute values are binary in nature, and thus not suitable  to
52       be  returned as an array of char *'s, the ldap_get_values_len() routine
53       can be used instead.  It takes the  same  parameters  as  ldap_get_val‐
54       ues(), but returns a NULL-terminated array of pointers to berval struc‐
55       tures, each containing the length of and a pointer to a value.
56
57       The  number  of  values  in  the  array  can  be  counted  by   calling
58       ldap_count_values_len().   The array of values returned can be freed by
59       calling ldap_value_free_len().
60

ERRORS

62       If an error occurs in ldap_get_values() or ldap_get_values_len(),  NULL
63       is  returned and the ld_errno field in the ld parameter is set to indi‐
64       cate the error.  See ldap_error(3) for a description of possible  error
65       codes.
66

NOTES

68       These  routines  dynamically allocate memory which the caller must free
69       using the supplied routines.
70

ACKNOWLEDGEMENTS

75       OpenLDAP Software is developed and maintained by The  OpenLDAP  Project
76       <http://www.openldap.org/>.  OpenLDAP Software is derived from the Uni‐
77       versity of Michigan LDAP 3.3 Release.
78
79
80
81OpenLDAP 2.6.3                    2022/07/14                LDAP_GET_VALUES(3)