lineedit: don't block when looking for escape sequence in vi-mode

In vi-mode lineedit tries to detect some escape sequences.
After the ESC it reads the next character to check for certain
values.  This read should have a timeout or a user-entered ESC to
switch to command mode doesn't properly handle the next character.

Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
nandwrite: fix build when long options are disabled

The Required_argument macro is only defined when long options are enabled.
Fixes the following build error:

miscutils/nandwrite.c: In function 'nandwrite_main':
miscutils/nandwrite.c:120:10: error: expected ',' or ';' before 'Required_argument'

Reported-by: Christian Kästner <kaestner at cs.cmu.edu>
Signed-off-by: Baruch Siach <baruch at tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
nanddump: don't show --bb in usage when disabled

The --bb options now depends on LONG_OPTS. Omit mentions of --bb from usage
text when LONG_OPTS is disabled.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
udhcpc: account for script run time

Based on the following user report:

I ran into an issue where I was seeing a long delay in the scripts called
in udhcp_run_script. I was using an old version of OpenWrt (kamikaze)
and a satellite modem. An NTP script was being called and the modem
would sometimes take a long time to respond to the DNS lookup when
it was offline.

This delay started affecting my lease time. The lease that I would
get from my satellite modem before it was online would be short:
only 60 seconds. The delay with NTP and the modem would typically
be about 18 seconds. This would cause the first DHCP renew request
from dhcpc to be a little late. Under certain circumstances,
I could even see the first DHCP renew to occur after the lease
had expired!

function                                             old     new   delta
udhcpc_main                                         2816    2837     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Make it possible to override LOGIN_FAIL_DELAY in CONFIG_EXTRA_CFLAGS

Signed-off-by: Peter Kümmel <syntheticpp@gmx.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
randomconfig fixes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
libbb: add sanity check in bb_arg_max()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Bump version to 1.23.0

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Start 1.24.0 development cycle

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Update link
Merge remote-tracking branch 'up/master'