'\" te
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.TH LDAP_GET_VALUES 3LDAP "Jan 28, 2002"
.SH NAME
ldap_get_values, ldap_get_values_len, ldap_count_values, ldap_count_values_len,
ldap_value_free, ldap_value_free_len \- LDAP attribute value handling functions
.SH SYNOPSIS
.LP
.nf
cc[ \fIflag\fR... ] \fIfile\fR... -lldap[ \fIlibrary\fR... ]
#include <lber.h>
#include <ldap.h>

\fBchar **\fR\fBldap_get_values\fR(\fBLDAP\fR \fI*ld\fR, \fBLDAPMessage\fR \fI*entry\fR, \fBchar\fR \fI*attr\fR);
.fi

.LP
.nf
\fBstruct berval **\fR\fBldap_get_values_len\fR(\fBLDAP\fR \fI*ld\fR, \fBLDAPMessage\fR \fI*entry\fR,
     \fBchar\fR \fI*attr\fR);
.fi

.LP
.nf
\fB\fR\fBldap_count_values\fR(\fBchar\fR \fI**vals\fR);
.fi

.LP
.nf
\fB\fR\fBldap_count_values_len\fR(\fBstruct berval\fR \fI**vals\fR);
.fi

.LP
.nf
\fB\fR\fBldap_value_free\fR(\fBchar\fR \fI**vals\fR);
.fi

.LP
.nf
\fB\fR\fBldap_value_free_len\fR(\fBstruct berval\fR \fI**vals\fR);
.fi

.SH DESCRIPTION
.sp
.LP
These functions are used to retrieve and manipulate attribute values from an
LDAP entry as returned by \fBldap_first_entry\fR(3LDAP) or
\fBldap_next_entry\fR(3LDAP). \fBldap_get_values()\fR takes the \fIentry\fR and
the attribute \fIattr\fR whose values are desired and returns a null-terminated
array of the attribute's values.  \fIattr\fR may be an attribute type as
returned from \fBldap_first_attribute\fR(3LDAP) or
\fBldap_next_attribute\fR(3LDAP), or if the attribute type is known it can
simply be given.
.sp
.LP
The number of values in the array can be counted by calling
\fBldap_count_values()\fR. The array of values returned can be freed by calling
\fBldap_value_free()\fR.
.sp
.LP
If the attribute values are binary in nature, and thus not suitable to be
returned as an array of char *'s, the \fBldap_get_values_len()\fR function can
be used instead.  It takes the same parameters as \fBldap_get_values()\fR, but
returns a null-terminated array of pointers to berval structures, each
containing the length of and a pointer to a value.
.sp
.LP
The number of values in the array can be counted by calling
\fBldap_count_values_len()\fR. The array of values returned can be freed by
calling \fBldap_value_free_len()\fR.
.SH ERRORS
.sp
.LP
If an error occurs in \fBldap_get_values()\fR or \fBldap_get_values_len()\fR,
\fINULL\fR returned and the \fBld_errno\fR field in the \fBld\fR parameter is
set to indicate the error.  See \fBldap_error\fR(3LDAP) for a description of
possible error codes.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for a description of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Evolving
.TE

.SH SEE ALSO
.sp
.LP
.BR ldap (3LDAP),
.BR ldap_error (3LDAP),
.BR ldap_first_attribute (3LDAP),
.BR ldap_first_entry (3LDAP),
.BR attributes (7)
.SH NOTES
.sp
.LP
These functions allocates memory that the caller must free.