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Natanael Copa b62ea34afe ntpd: improve postponed hostname resolution 
Run the namelookup from the main loop so a misspelled first ntp server
name does not block everything forever.

This fixes the following situation which would block forever:
  $ sudo ./busybox ntpd -dn -p foobar  -p pool.ntp.org
  ntpd: bad address 'foobar'
  ntpd: bad address 'foobar'
  ntpd: bad address 'foobar'
  ...

New behavior:
  ntpd: bad address 'foobar'
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.009775 delay:0.175550 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x01
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.009605 delay:0.175461 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x03
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.005327 delay:0.167027 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x07
  ntpd: sending query to 137.190.2.4
  ntpd: bad address 'foobar'
  ntpd: reply from 137.190.2.4: offset:-1.046349 delay:0.248705 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x0f

This patch is based on Kaarle Ritvanens work.
http://lists.busybox.net/pipermail/busybox/2016-May/084197.html

function                                             old     new   delta
ntpd_main                                           1061    1079     +18
ntp_init                                             556     560      +4
resolve_peer_hostname                                 81      75      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 22/-6)              Total: 16 bytes

Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-06 16:21:09 +01:00
..
libiproute
fix breakage found by mass one-applet builds
2016-12-23 02:42:26 +01:00
ssl_helper
networking/ssl_helper: experimental matrixssl-based ssl helper
2014-02-23 23:31:13 +01:00
ssl_helper-wolfssl
Update information on building httpd and wget helpers
2016-12-22 15:13:37 +01:00
udhcp
udhcp: tweak config order and menu item names
2017-01-04 12:13:38 +01:00
arp.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
arping.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
brctl.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
Config.src
Fix dependency for IFUPDOWN_UDHCPC_CMD_OPTIONS
2017-01-03 12:29:52 +01:00
dnsd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ether-wake.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ftpd.c
Rename FEATURE_FTP_WRITE and FEATURE_FTP_AUTHENTICATION to *_FTPD_*
2016-11-23 09:07:44 +01:00
ftpgetput.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
hostname.c
dnsdomainname: split it from "hostname", make it independently selectable
2016-11-13 22:35:10 +01:00
httpd_helpers.sh
Update information on building httpd and wget helpers
2016-12-22 15:13:37 +01:00
httpd_indexcgi.c
httpd_indexcgi.c: fix compile failure
2012-09-03 12:20:10 +02:00
httpd_post_upload.cgi
Make POST upload example script easier to use
2016-12-22 15:33:11 +01:00
httpd_ssi.c
whitespace fixes. no code changes
2013-01-14 01:34:48 +01:00
httpd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ifconfig.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ifenslave.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ifplugd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ifupdown.c
Remove FEATURE_IFUPDOWN_IP_BUILTIN and FEATURE_IFUPDOWN_IFCONFIG_BUILTIN
2016-12-23 15:20:16 +01:00
inetd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
interface.c
Code style fixes, no code changes
2016-11-28 01:22:57 +01:00
ip.c
ip: make ip aliases individually selectable
2016-12-22 22:30:13 +01:00
ipcalc.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
isrv_identd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
isrv.c
libbb: introduce kernel-style BUILD_BUG_ON()
2015-10-13 14:50:20 +02:00
isrv.h
fixlet for the previous commit #2
2014-01-09 20:09:43 +01:00
Kbuild.src
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
nameif.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
nbd-client.c
*: more BUILD_BUG_ON conversions
2015-10-13 17:17:34 +02:00
nc_bloaty.c
getopt32: add new syntax of 'o:+' and 'o:*' for -o NUM and -o LIST
2016-07-06 21:58:02 +02:00
nc.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
netstat.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
nslookup.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
ntpd.c
ntpd: improve postponed hostname resolution
2017-01-06 16:21:09 +01:00
ntpd.diff
ntpd: add experimental patch
2016-03-04 07:36:04 +01:00
ping.c
Make ping6 and traceroute6 selectable independently from ping/traceroute
2016-11-23 09:25:57 +01:00
pscan.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
route.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
slattach.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
tc.c
Code style fixes, no code changes
2016-11-28 01:22:57 +01:00
tcpudp_perhost.c
…
tcpudp_perhost.h
…
tcpudp.c
tcpudp: define SO_ORIGINAL_DST directly, not via include
2017-01-02 10:46:08 +01:00
telnet.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
telnetd.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
telnetd.ctrlSQ.patch
*: slap on a few ALIGN1/2s where appropriate
2016-04-22 18:09:21 +02:00
telnetd.IAC_test.sh
telnetd: fix corner case of input processing of 0xff bytes
2016-10-12 19:13:46 +02:00
tftp.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
traceroute.c
Make ping6 and traceroute6 selectable independently from ping/traceroute
2016-11-23 09:25:57 +01:00
tunctl.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
vconfig.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00
wget.c
wget: there is no -s option in GNU Wget 1.18, we should be compatible
2016-10-04 04:23:09 +02:00
whois.c
getopt32: add new syntax of 'o:+' and 'o:*' for -o NUM and -o LIST
2016-07-06 21:58:02 +02:00
zcip.c
Convert all networking/* applets to "new style" applet definitions
2016-11-23 09:05:14 +01:00