(tty::is_master_closed): Drop method.
* fhandler_tty.cc (fhandler_pty_slave::open): Remove code prematurely
bailing out if master control thread is not running.
(fhandler_pty_slave::read): Don't generate SIGHUP if master control
thread is not running.
(fhandler_pty_master::close): Rearrange code to avoid stopping master
control thread twice in multi-threaded scenarios.
(class fhandler_pty_master): Add echo_r and echo_w handles constituting
read and write side of new echo pipe.
* select.cc (peek_pipe): On pty masters, check additionally if input
from the echo pipe is available.
* fhandler_tty.cc (fhandler_pty_master::doecho): Drop output_mutex
locking. Write output to echo pipe.
(fhandler_pty_master::process_slave_output): Check if input is available
in echo pipe and prefer to read from it, if so.
(fhandler_pty_slave::write): Drop output_mutex locking.
(fhandler_pty_master::fhandler_pty_master): Initialize echo pipe
handles to NULL.
(fhandler_pty_master::close): Close and NULL echo pipe handles.
(fhandler_pty_master::setup): Create echo pipe, close in case of error.
case owner SID == group SID.
(getacl): Reverse order of SID test against group or owner sid to
prefer owner attributes over group attributes. Disable setting group
permissions equivalent to owner permissions if owner == group. Add
comment to explain why. Fix indentation.
* security.cc (get_attribute_from_acl): Change type of local variables
containing permission to mode_t. Apply deny mask to group if group SID
== owner SID to avoid Everyone permissions to spill over into group
permissions. Disable setting group permissions equivalent to owner
permissions if owner == group. Add comment to explain why.
* uinfo.cc (pwdgrp::fetch_account_from_windows): Allow user SID as
group account if user is a "Microsoft Account". Explain why. Drop
workaround enforcing primary group "Users" for "Microsoft Accounts".
cygwait should be in EINTR or in restart mode. Call signal handler
if in EINTR mode.
(mq_getattr): Call ipc_mutex_lock in restart mode.
(mq_setattr): Ditto.
(mq_notify): Ditto.
(_mq_send): Call ipc_mutex_lock in EINTR mode.
(_mq_receive): Ditto.
(class cyg_ldap): Remove members srch_msg and srch_entry.
(cyg_ldap::get_string_attribute): Remove private method taking index
argument.
(cyg_ldap::get_num_attribute): Ditto. Add method taking attribute name.
(cyg_ldap::get_primary_gid): Adjust to aforementioned change.
(cyg_ldap::get_unix_uid): Ditto.
(cyg_ldap::get_unix_gid): Ditto.
* ldap.cc: Throughout, use msg and entry in place of srch_msg and
srch_entry.
(std_user_attr): Add sAMAccountName and objectSid.
(group_attr): Ditto.
(cyg_ldap::close): Drop handling of srch_msg and srch_entry.
(cyg_ldap::get_string_attribute): Move earlier in file.
(cyg_ldap::get_num_attribute): Ditto.
(cyg_ldap::enumerate_ad_accounts): Add comments for clarity.
Use group_attr or user_attr rather than sid_attr to fetch all desired
attributes for an account right away.
(cyg_ldap::next_account): Store found SID in last_fetched_sid to
skip calls to fetch_ad_account from fetch_account_from_windows.
(cyg_ldap::get_string_attribute): Remove method taking index argument.
(cyg_ldap::get_num_attribute): Ditto.
* pwdgrp.h (class pg_ent): Fix formatting. Add member dom.
* passwd.cc (pg_ent::enumerate_ad): Store current flat domain name
in dom. Construct fetch_acc_t argument from LDAP attributes and
call fetch_account_from_windows with that.
* userinfo.h (enum fetch_user_arg_type_t): Rename FULL_grp_arg to
FULL_acc_arg. Change throughout.
(struct fetch_acc_t): Rename from fetch_full_grp_t. Change throughout.
(struct fetch_user_arg_t): Rename full_grp to full_acc. Change
throughout.
* fhandler.cc (fhandler_base::set_flags): Set was_nonblocking if the
O_NONBLOCK flag has been specified.
(fhandler_base_overlapped::close): Check for was_nonblocking instead
of for is_nonblocking. Explain why.
(fhandler_base::set_nonblocking): Set was_nonblocking if noblocking
mode gets enabled.