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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:35:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:35:32 +0000 |
commit | 5ea77a75dd2d2158401331879f3c8f47940a732c (patch) | |
tree | d89dc06e9f4850a900f161e25f84e922c4f86cc8 /doc/man/man3/ldap_first_attribute.3 | |
parent | Initial commit. (diff) | |
download | openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip |
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/man/man3/ldap_first_attribute.3')
-rw-r--r-- | doc/man/man3/ldap_first_attribute.3 | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/doc/man/man3/ldap_first_attribute.3 b/doc/man/man3/ldap_first_attribute.3 new file mode 100644 index 0000000..47e8b0c --- /dev/null +++ b/doc/man/man3/ldap_first_attribute.3 @@ -0,0 +1,97 @@ +.TH LDAP_FIRST_ATTRIBUTE 3 "RELEASEDATE" "OpenLDAP LDVERSION" +.\" $OpenLDAP$ +.\" Copyright 1998-2022 The OpenLDAP Foundation All Rights Reserved. +.\" Copying restrictions apply. See COPYRIGHT/LICENSE. +.SH NAME +ldap_first_attribute, ldap_next_attribute \- step through LDAP entry attributes +.SH LIBRARY +OpenLDAP LDAP (libldap, \-lldap) +.SH SYNOPSIS +.nf +.ft B +#include <ldap.h> +.LP +.ft B +char *ldap_first_attribute( + LDAP *ld, LDAPMessage *entry, BerElement **berptr ) +.LP +.ft B +char *ldap_next_attribute( + LDAP *ld, LDAPMessage *entry, BerElement *ber ) +.LP +.ft B +int ldap_get_attribute_ber( + LDAP *ld, LDAPMessage *entry, BerElement *ber, + BerValue *attr, BerVarray *vals ) +.SH DESCRIPTION +The +.BR ldap_first_attribute() , +.B ldap_next_attribute() +and +.B ldap_get_attribute_ber() +routines are used +to step through the attributes in an LDAP entry. +.B ldap_first_attribute() +takes an \fIentry\fP as returned by +.BR ldap_first_entry (3) +or +.BR ldap_next_entry (3) +and returns a pointer to character string +containing the first attribute description in the entry. +.B ldap_next_attribute() +returns the next attribute description in the entry. +.LP +It also returns, in \fIberptr\fP, a pointer to a BerElement it has +allocated to keep track of its current position. This pointer should +be passed to subsequent calls to +.B ldap_next_attribute() +and is used +to effectively step through the entry's attributes. The caller is +solely responsible for freeing the BerElement pointed to by \fIberptr\fP +when it is no longer needed by calling +.BR ber_free (3). +When calling +.BR ber_free (3) +in this instance, be sure the second argument is 0. +.LP +The attribute names returned are suitable for inclusion in a call +to +.BR ldap_get_values (3) +to retrieve the attribute's values. +.LP +The +.B ldap_get_attribute_ber() +routine allows one to iterate over all attributes in-place, without +allocating memory to hold text for the attribute name or its values, +if requested. The use case is similar to +.B ldap_next_attribute() +except that the attribute name is returned into \fIattr\fP and, if +\fIvals\fP is non-NULL, the list of values is stored there. Both point +into the LDAP message and remain valid only while the entry is valid. +The caller is still responsible for freeing \fIvals\fP with +.BR ldap_memfree (3), +if used. +.SH ERRORS +If an error occurs, NULL is returned and the ld_errno field in the +\fIld\fP parameter is set to indicate the error. See +.BR ldap_error (3) +for a description of possible error codes. +.SH NOTES +The +.B ldap_first_attribute() +and +.B ldap_next_attribute() +return dynamically allocated memory that must be freed by the caller via +.BR ldap_memfree (3). +For +.BR ldap_get_attribute_ber() , +only the actual \fIvals\fP pointer needs to be freed with +.BR ldap_memfree (3), +other data is accounted for as part of \fIber\fP. +.SH SEE ALSO +.BR ldap (3), +.BR ldap_first_entry (3), +.BR ldap_get_values (3), +.BR ldap_error (3) +.SH ACKNOWLEDGEMENTS +.so ../Project |