Back port of bug fix ERL-893 from OTP-22 and document enhancements that will solve dialyzer warnings for users of the ssl application.

This change also affects public_key, eldap (and inet doc).

Own Id: OTP-15785 Aux Id: ERL-929, ERL-893, PR-2215

A race condition at close could cause the eldap client to exit with a badarg message as cause.

Own Id: OTP-15342 Aux Id: ERIERL-242

Improved documentation.

Own Id: OTP-15190

Update to use the new string api instead of the old.

Own Id: OTP-15036

A race condition at close could cause the eldap client to exit with a badarg message as cause.

Own Id: OTP-15342 Aux Id: ERIERL-242

Removed all old unused files in the documentation.

Own Id: OTP-14475 Aux Id: ERL-409, PR-1493

A race condition at close could cause the eldap client to exit with a badarg message as cause.

Own Id: OTP-15342 Aux Id: ERIERL-242

If the underlying tcp connection is closed and an LDAP operation returned tcp_error, the client applications tend to close the ldap handle with eldap:close. This will cause a {nocatch, {gen_tcp_error, ...}} exception.

Such errors are now ignored during close, because the socket will be closed anyway.

Own Id: OTP-13590 Aux Id: PR-1048

Modernize test suites

Own Id: OTP-13566

ELDAP did not send an 'unBind' request before closing the connection.

Own Id: OTP-13327

Handles the referral result code from LDAP servers. Adds the return value {ok, {referral,UrlList}} to some functions. See the Eldap reference manual for details.

Own Id: OTP-12272

Support added for LDAP Password Modify Extended Operation (RFC 3062). Thanks to danielwhite.

Own Id: OTP-12282

Corrects that eldap:close/1 returned a tuple instead of the specified atom ok.

Own Id: OTP-12349

Clarification in the reference manual for eldap:modify_dn/5, eldap:search/2 and eldap:start_tls/3.

Own Id: OTP-12354

The eldap test suites are extended and re-organized.

Own Id: OTP-12355

Fixed that eldap:open did not use the Timeout parameter when calling ssl:connect. (Thanks Wiesław Bieniek for reporting)

Own Id: OTP-12311

Added the LDAP filter extensibleMatch.

Own Id: OTP-12174

eldap:open/2 and eldap:open/3 gave wrong return values for option errors.

Own Id: OTP-12182

Nearly all TCP options are possible to give in the eldap:open/2 call.

Own Id: OTP-12171

Application upgrade (appup) files are corrected for the following applications:

asn1, common_test, compiler, crypto, debugger, dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets, observer, odbc, os_mon, otp_mibs, parsetools, percept, public_key, reltool, runtime_tools, ssh, syntax_tools, test_server, tools, typer, webtool, wx, xmerl

A new test utility for testing appup files is added to test_server. This is now used by most applications in OTP.

(Thanks to Tobias Schlager)

Own Id: OTP-11744

Add support for IPv6 connections, By including the [inet6] option in eldap:open/2. Default value is still [inet] (Thanks to Edwin Fine)

Own Id: OTP-11753

Fixed bug where eldap:search returned binaries instead of strings. (Thanks Simon MacMullen for the report)

Own Id: OTP-11768

Removed {verify,0} from ssl-options because eldap does not support peer verification. Thanks to Florian Waas for reporting.

Own Id: OTP-11354

The ldap client eldap now supports the start_tls operation. This upgrades an existing tcp connection to encryption using tls, if the server supports it. See eldap:start_tls/2 and /3.

Own Id: OTP-11336

Fixed various dialyzer warnings

Own Id: OTP-10403 Aux Id: kunagi-258 [169]

Configure the SSL options fully in eldap.

Own Id: OTP-10728