ntpd: let user know if spike was detected

function                                             old     new   delta
update_local_clock                                   861     943     +82

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ntpd: promote log level 3 to production

Without it, peer selection logic is hard to debug

function                                             old     new   delta
update_local_clock                                   861     982    +121
select_and_cluster                                   962    1065    +103
common_ping_main                                    1788    1821     +33
huft_build                                          1287    1296      +9
chpst_main                                           708     704      -4
INET6_resolve                                        127     119      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/2 up/down: 266/-12)           Total: 254 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ntpd: comment out "spike detection" code

function                                             old     new   delta
update_local_clock                                   982     835    -147

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ntpd: do not invalidate datapoints after step

Used to set p->filter_datapoint[i].d_dispersion = MAXDISP
and clear reachable bits, but this proved to be too agressive:
after step (tested with suspinding laptop for ~30 secs),
this caused all previous data to be considered invalid,
making us needing to collect full ~8 datapoins per peer
after step in order to start trusting them.
In turn, this was making poll interval decrease even after
step was done. (Poll interval decreases already before step
in this scenario, because we see large offsets and end up with
no good peer to select).

function                                             old     new   delta
reset_peer_stats                                     157     139     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ntpd: speed up resyncing if our clock is seriously off

function                                             old     new   delta
recv_and_process_peer_pkt                            892     922     +30

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
expand: use printable_string instead of hard-coding implementation

function                                             old     new   delta
expand_main                                          709     690     -19

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
do not fail build if MAXSYMLINKS isn't defined

This is needed for, eg, hurd, which is known to have no constraints.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
killall5: return 2 if no processes got killed

function                                             old     new   delta
kill_main                                            943     992     +49

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
kill[all[5]]: code shrink

function                                             old     new   delta
kill_main                                            992     947     -45

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
wget: user-friendly fallback to http

GNU wget: wget google.com // ok
bb before: wget google.com // wget: not an http or ftp url

function                                             old     new   delta
parse_url                                            317     339     +22

Signed-off-by: Lauri Kasanen <curaga@operamail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
hostname: do not use gethostbyname() for "hostname -s"

There's no reason to call gethostbyname() on the value returned
by uname() when asked just for a short name of a host.  This may
also be wrong, when uname is set to one value, but in /etc/hosts
(or elsewhere) the "canonical" name is different.  This is often
the case for localhost entry in /etc/hosts:

  127.0.0.1     localhost       myname

With this content of /etc/hosts, and uname being set to myname,
busybox hostname -s will return localhost, while regular
hostname utility returns myname.

Fix this by not calling gethostbyname() for the simple
'hostname -s' use.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
sed: accept s///i as a synonym for s///I ("ignore case")

Signed-off-by: David A. Wheeler <dwheeler@dwheeler.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
build system: fix make gconfig

Was getting "undefined reference to symbol 'dlsym@@GLIBC_2.2.5'".

Signed-off-by: Daniel Borca <dborca@yahoo.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
testsuite: fix false positives for du

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
adduser: check whether run with no USERNAME. Closes 6728

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
testsuite: disable tests for no longer supported bbox-specific date formats

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
fix failures found by randomconfig builds

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
testsuite: remove forgotten debug hack

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Bump version to 1.22.0

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Start 1.23.0 development cycle

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>