LDAP_CHARSET(3LDAP) LDAP Library Functions LDAP_CHARSET(3LDAP)


NAME


ldap_charset, ldap_set_string_translators, ldap_t61_to_8859,
ldap_8859_to_t61, ldap_translate_from_t61, ldap_translate_to_t61,
ldap_enable_translation - LDAP character set translation functions

SYNOPSIS


cc[ flag... ] file... -lldap[ library... ]
#include <lber.h>
#include <ldap.h>

void ldap_set_string_translators(LDAP *ld,
BERTranslateProc encode_proc, BERTranslateProc decodeproc);


typedef int(*BERTranslateProc)(char **bufp, unsigned long *buflenp,
int free_input);


int ldap_t61_to_8859(char **bufp, unsigned long *buflenp,
int free_input);


int ldap_8859_to_t61(char **bufp, unsigned long *buflenp,
int free_input);


int ldap_translate_from_t61(LDAP *ld, char **bufp,
unsigned long *lenp, int free_input);


int ldap_translate_to_t61(LDAP *ld, char **bufp, unsigned long *lenp,
int free_input);


void ldap_enable_translation(LDAP *ld, LDAPMessage *entry, int enable);


DESCRIPTION


These functions are used to used to enable translation of character
strings used in the LDAP library to and from the T.61 character set used
in the LDAP protocol. These functions are only available if the LDAP
and LBER libraries are compiled with STR_TRANSLATION defined. It is also
possible to turn on character translation by default so that all LDAP
library callers will experience translation; see the LDAP Make-common
source file for details.


ldap_set_string_translators() sets the translation functions that will be
used by the LDAP library. They are not actually used until the
ld_lberoptions field of the LDAP structure is set to include the
LBER_TRANSLATE_STRINGS option.


ldap_t61_to_8859() and ldap_8859_to_t61() are translation functions for
converting between T.61 characters and ISO-8859 characters. The specific
8859 character set used is determined at compile time.


ldap_translate_from_t61() is used to translate a string of characters
from the T.61 character set to a different character set. The actual
translation is done using the decode_proc that was passed to a previous
call to ldap_set_string_translators(). On entry, *bufp should point to
the start of the T.61 characters to be translated and *lenp should
contain the number of bytes to translate. If free_input is non-zero, the
input buffer will be freed if translation is a success. If the
translation is a success, LDAP_SUCCESS will be returned, *bufp will point
to a newly malloc'd buffer that contains the translated characters, and
*lenp will contain the length of the result. If translation fails, an
LDAP error code will be returned.


ldap_translate_to_t61() is used to translate a string of characters to
the T.61 character set from a different character set. The actual
translation is done using the encode_proc that was passed to a previous
call to ldap_set_string_translators(). This function is called just like
ldap_translate_from_t61().


ldap_enable_translation() is used to turn on or off string translation
for the LDAP entry entry (typically obtained by calling
ldap_first_entry() or ldap_next_entry() after a successful LDAP search
operation). If enable is zero, translation is disabled; if non-zero,
translation is enabled. This function is useful if you need to ensure
that a particular attribute is not translated when it is extracted using
ldap_get_values() or ldap_get_values_len(). For example, you would not
want to translate a binary attributes such as jpegPhoto.

ATTRIBUTES


See attributes(5) for a description of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Interface Stability | Evolving |
+--------------------+-----------------+

SEE ALSO


ldap(3LDAP), attributes(5)


January 27, 2002 LDAP_CHARSET(3LDAP)