ldap_start_tls, ldap_start_tls_s, ldap_tls_inplace, ldap_install_tls — LDAP TLS initialization routines


#include <ldap.h>
int ldap_start_tls( LDAP *ld);
int ldap_start_tls_s( LDAP *ld,
  LDAPControl **serverctrls,
  LDAPControl **clientctrls);
int ldap_tls_inplace( LDAP *ld);
int ldap_install_tls( LDAP *ld);


OpenLDAP LDAP (libldap, −lldap)


These routines are used to initiate TLS processing on an LDAP session. ldap_start_tls_s() sends a StartTLS request to a server, waits for the reply, and then installs TLS handlers on the session if the request succeeded. The routine returns LDAP_SUCCESS if everything succeeded, otherwise it returns an LDAP error code. ldap_start_tls() sends a StartTLS request to a server and does nothing else. It returns LDAP_SUCCESS if the request was sent successfully. ldap_tls_inplace() returns 1 if TLS handlers have been installed on the specified session, 0 otherwise. ldap_install_tls() installs the TLS handlers on the given session. It returns LDAP_LOCAL_ERROR if TLS is already installed.


ldap(3), ldap_error(3)


OpenLDAP Software is developed and maintained by The OpenLDAP Project <>. OpenLDAP Software is derived from the University of Michigan LDAP 3.3 Release.

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