Commit Graph

2725 Commits

Author SHA1 Message Date
Stefan Agner
2adaa90534 ifplugd: if SIOCSIFFLAGS fails with EADDRNOTAVAIL, don't die
When using ifplugd on a RNDIS interface with monitor mode, using
SIOCSIFFLAGS seems to fail with EADDRNOTAVAIL. Treat it the same
as if iface disappeared again.

This has been observed on a Tegra TK1 using Linux 4.14. There seem
to be a race when the kernel is creating the device:
  ifplugd(usb0): started: BusyBox v1.24.1 (2018-03-27 09:47:48 CEST)
  ifplugd(usb0): interface doesn't exist, waiting
  ifplugd(usb0): interface appeared
  ifplugd(usb0): upping interface
  ifplugd(usb0): setting interface flags failed: Cannot assign requested address
  <exit>

With this patch ifplugd is successful in upping the device the second
time around:

  ifplugd(usb0): upping interface
  ifplugd(usb0): using SIOCETHTOOL detection mode
  ifplugd(usb0): interface appeared
  ifplugd(usb0): upping interface
  ifplugd(usb0): setting interface flags failed: Cannot assign requested address
  ifplugd(usb0): interface appeared
  ifplugd(usb0): upping interface
  ifplugd(usb0): using SIOCETHTOOL detection mode
  ifplugd(usb0): link is up
  ifplugd(usb0): executing '/etc/ifplugd/ifplugd.usb.action usb0 up'
  ifplugd up
  ifplugd(usb0): exit code: 0

function                                             old     new   delta
up_iface                                             120     127      +7

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-29 18:45:11 +02:00
Kaarle Ritvanen
123fdda0a4 ifupdown: do not fail if interface disappears during ifdown
Interface may not exist because it got deleted by an ifdown hook script
earlier. This may happen when a virtual interface, such as VLAN, has multiple
iface blocks defined.

function                                             old     new   delta
static_down6                                          14      40     +26
static_down                                           54      70     +16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 42/0)               Total: 42 bytes

Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-28 00:02:52 +02:00
Denys Vlasenko
46ba2468a3 ioctl(SIOCGIFINDEX) does not require clearing of entire ifr
function                                             old     new   delta
INET6_setroute                                       492     472     -20
do_iplink                                           1357    1330     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-47)             Total: -47 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-27 23:55:43 +02:00
Mark Marshall
98592db323 netstat: produce numeric-ip output for non-resolved names
If we don't ask for numerical output, and the symbolic look-up failed
we used to get "(null)", but the numeric output would be better.

function                                             old     new   delta
ip_port_str                                          109     121     +12

Signed-off-by: Mark Marshall <mark.marshall@omicronenergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-27 23:28:53 +02:00
Ron Yorston
b5820d9fd8 ssl_client: fix option parsing
The wrong character was used to indicate options taking an integer
parameter.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-20 11:41:51 +01:00
Denys Vlasenko
bbe47d9b9a tcpsvd: fix fallout from opt_complementary removal
text	   data	    bss	    dec	    hex	filename
 933035	    473	   6836	 940344	  e5938	busybox_old
 933051	    473	   6836	 940360	  e5948	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-11 23:02:50 +01:00
Denys Vlasenko
448fdcc17d ntpd: choose initial FREQHOLD_cnt dynamically
function                                             old     new   delta
update_local_clock                                   834     858     +24

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-11 17:08:02 +01:00
Denys Vlasenko
3d306bffc5 udhcpd: clamp down huge auto_times to ~2M seconds, better EINTR poll handling
EINTR _should_ only happen on two signals we trap, and safe_poll
_should_ work here just fine, but there were kernel bugs where spurious EINTRs
happen (e.g. on ptrace attach). Be safe.

function                                             old     new   delta
udhcpd_main                                         1437    1468     +31

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-11 11:39:05 +01:00
Denys Vlasenko
39dfb4de38 ntpd: suppress in-kernel frequency correction in first 8 adjtimex calls
In other words: try to correct initially existing clock offset first,
before assuming that our clock drifts.

function                                             old     new   delta
update_local_clock                                   826     834      +8
ntp_init                                             550     557      +7
filter_datapoints                                    179     173      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 15/-6)               Total: 9 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-10 21:25:53 +01:00
Denys Vlasenko
3293bc1469 udhcpd: fix "not dying on SIGTERM"
Fixes:
	commit 52a515d187
	"udhcp: use poll() instead of select()"
	Feb 16 2017

udhcp_sp_read() is meant to check whether signal pipe indeed has some data to read.
In the above commit, it was changed as follows:

-	if (!FD_ISSET(signal_pipe.rd, rfds))
+	if (!pfds[0].revents)
		return 0;

The problem is, the check was working for select() purely by accident.
Caught signal interrupts select()/poll() syscalls, they return with EINTR
(regardless of SA_RESTART flag in sigaction). _Then_ signal handler is invoked.
IOW: they can't see any changes to fd state caused by signal haldler
(in our case, signal handler makes signal pipe ready to be read).

For select(), it means that rfds[] bit array is unmodified, bit of signal
pipe's read fd is still set, and the above check "works": it thinks select()
says there is data to read.

This accident does not work for poll(): .revents stays clear, and we do not
try reading signal pipe as we should. In udhcpd, we fall through and block
in socket read. Further SIGTERM signals simply cause socket read to be
interrupted and then restarted (since SIGTERM handler has SA_RESTART=1).

Fixing this as follows: remove the check altogether. Set signal pipe read fd
to nonblocking mode. Always read it in udhcp_sp_read().
If read fails, assume it's EAGAIN and return 0 ("no signal seen").

udhcpd avoids reading signal pipe on every recvd packet by looping if EINTR
(using safe_poll()) - thus ensuring we have correct .revents for all fds -
and calling udhcp_sp_read() only if pfds[0].revents!=0.

udhcpc performs much fewer reads (typically it sleeps >99.999% of the time),
there is no need to optimize it: can call udhcp_sp_read() after each poll
unconditionally.

To robustify socket reads, unconditionally set pfds[1].revents=0
in udhcp_sp_fd_set() (which is before poll), and check it before reading
network socket in udhcpd.

TODO:
This might still fail: if pfds[1].revents=POLLIN, socket read may still block.
There are rare cases when select/poll indicates that data can be read,
but then actual read still blocks (one such case is UDP packets with
wrong checksum). General advise is, if you use a poll/select loop,
keep all your fds nonblocking.
Maybe we should also do that to our network sockets?

function                                             old     new   delta
udhcp_sp_setup                                        55      65     +10
udhcp_sp_fd_set                                       54      60      +6
udhcp_sp_read                                         46      36     -10
udhcpd_main                                         1451    1437     -14
udhcpc_main                                         2723    2708     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 16/-39)            Total: -23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-10 19:34:39 +01:00
Denys Vlasenko
3936222a0a remove stray newline in "iplink --help"
function                                             old     new   delta
packed_usage                                       32547   32550      +3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-08 16:06:18 +01:00
Denys Vlasenko
db169f2538 ip: fix "ip -oneline a"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-08 15:55:07 +01:00
Denys Vlasenko
e1b1b79269 use gmtime_r() instead of gmtime()
This avoids pulling in gmtime's static buffer:

function                                             old     new   delta
svlogd_main                                         1401    1412     +11
send_headers                                         668     678     +10
gmtime                                                21       -     -21
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/0 up/down: 21/-21)              Total: 0 bytes
   text	   data	    bss	    dec	    hex	filename
 920221	    555	   5804	 926580	  e2374	busybox_old
 920221	    555	   5740	 926516	  e2334	busybox_unstripped
                   ^^^^

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-06 18:11:47 +01:00
Denys Vlasenko
d51ba0b5ab networking/interface.c: get rid of global data
These were data/bss:

static.proc_read                                       1       -      -1
int_list                                               4       -      -4
int_last                                               4       -      -4

We never call display_interfaces() twice, thus code to not scan /proc twice
never triggers.

function                                             old     new   delta
do_if_print                                            -    1998   +1998
display_interfaces                                   145     249    +104
static.proc_read                                       1       -      -1
add_interface                                        104     103      -1
int_list                                               4       -      -4
int_last                                               4       -      -4
if_readlist_proc                                     560     542     -18
if_readconf                                          141       -    -141
do_if_fetch                                          643       -    -643
ife_print                                           1296       -   -1296
------------------------------------------------------------------------------
(add/remove: 1/6 grow/shrink: 1/2 up/down: 2102/-2108)         Total: -6 bytes
   text	   data	    bss	    dec	    hex	filename
 933084	    473	   6844	 940401	  e5971	busybox_old
 933087	    473	   6836	 940396	  e596c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-05 18:30:33 +01:00
Denys Vlasenko
82ec89480d networking/interface.c: get rid of global "smallint interface_opt_a"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-05 17:46:17 +01:00
Denys Vlasenko
8a5299fcfd networking/interface.c: code shrink
function                                             old     new   delta
ife_print                                           1293    1296      +3
display_interfaces                                   145     146      +1
if_readconf                                          162     141     -21
if_readlist_proc                                     631     560     -71
do_if_fetch                                          753     643    -110
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 4/-202)           Total: -198 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-05 16:56:16 +01:00
Peter Lloyd
804ce5a6fe wget: fix fetching of https URLs with http proxy
When fetching a https:// URL with HTTP proxy configured
(e.g. with environment variable http_proxy=http://your-proxy:3128)
busybox was making a https connection to the proxy.

This was because the protocol scheme for the target URL was used to determine whether to connect to the proxy over SSL or not.

When the proxy is in use, the decision on whether to connect to the proxy over https
should based on the proxy URL not on the target URL.

function                                             old     new   delta
wget_main                                           2381    2387      +6

Signed-off-by: Peter Lloyd <l-busybox@pgl22.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-05 00:19:33 +01:00
Denys Vlasenko
d82ea2ba8f tcpudp: shrink per-host rate-limiting code
function                                             old     new   delta
tcpudpsvd_main                                      1775    1780      +5
ipsvd_perhost_add                                    108     107      -1
cclen                                                  4       -      -4
cc                                                     4       -      -4
ipsvd_perhost_init                                    30      25      -5
ipsvd_perhost_remove                                  80      44     -36
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/3 up/down: 5/-50)             Total: -45 bytes
   text	   data	    bss	    dec	    hex	filename
 933358	    473	   6852	 940683	  e5a8b	busybox_old
 933326	    473	   6844	 940643	  e5a63	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-27 13:03:44 +01:00
Jan Luebbe
e789c3bea1 iplink: implement support for selecting a master interface
Attaching an interface to a VRF is done by setting the interface's
master. Besides VRF, this can also be used for bridges.

function                                             old     new   delta
set_master                                             -     142    +142
do_iplink                                           1262    1357     +95
packed_usage                                       32546   32539      -7
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 237/-7)            Total: 230 bytes

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-20 19:43:32 +01:00
Jan Luebbe
79cda9522a ip link: support "add TYPE vrf", improve --help
VRF interfaces have a mandatory table parameter, which needs to be
specified using a RTNL attribute.

function                                             old     new   delta
do_add_or_delete                                    1150    1254    +104
packed_usage                                       32444   32546    +102
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 206/0)             Total: 206 bytes

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-20 19:29:05 +01:00
Denys Vlasenko
a48eadbc22 tls: remove redundant floor prevention
function                                             old     new   delta
tls_xread_record                                     499     489     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-14 17:37:41 +01:00
Denys Vlasenko
256adb0f99 ping: don't call monotonic_us twice per sending the ping
function                                             old     new   delta
sendping6                                             80      85      +5
sendping4                                            106     111      +5
sendping_tail                                        209     204      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 10/-5)               Total: 5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-13 23:53:24 +01:00
Denys Vlasenko
7189af847f ping: implement -A "adaptive ping"
function                                             old     new   delta
common_ping_main                                    1757    1862    +105
packed_usage                                       32367   32427     +60
sendping_tail                                        236     209     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 165/-27)           Total: 138 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-13 23:21:33 +01:00
Denys Vlasenko
4892f3a4c7 inetd,mount: add comment with example of flags to build with libtirpc
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-13 18:20:28 +01:00
Denys Vlasenko
3459024bf4 wget: more thorough sanitization of other side's data
function                                             old     new   delta
get_sanitized_hdr                                      -     156    +156
fgets_trim_sanitize                                    -     128    +128
ftpcmd                                               129     133      +4
parse_url                                            461     454      -7
sanitize_string                                       14       -     -14
wget_main                                           2431    2381     -50
fgets_and_trim                                       119       -    -119
gethdr                                               163       -    -163
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 1/2 up/down: 288/-353)          Total: -65 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-12 16:46:13 +01:00
Denys Vlasenko
b5257a6701 arping: code shrink
function                                             old     new   delta
catcher                                              310     309      -1
arping_main                                         1668    1641     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 21:16:24 +01:00
Denys Vlasenko
ba3b9dbf06 libbb: introduce and use bb_getsockname()
function                                             old     new   delta
bb_getsockname                                         -      18     +18
xrtnl_open                                            88      83      -5
do_iplink                                           1216    1209      -7
arping_main                                         1686    1668     -18
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/3 up/down: 18/-30)            Total: -12 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 14:55:46 +01:00
Denys Vlasenko
d3162773d5 arping: move packet buffer, sigset and struct ifreq to malloced "globals"
This way, we can zero them all in one go.
We do malloc() anyway, thus nothing is lost by mallocing "globals"

function                                             old     new   delta
arping_main                                         1683    1686      +3
finish                                               100      86     -14
catcher                                              350     310     -40
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 3/-54)             Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 14:35:46 +01:00
Denys Vlasenko
e015d0659f arping: fix the case when inherited signal mask masks out ALRM
function                                             old     new   delta
arping_main                                         1629    1635      +6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 13:48:52 +01:00
Denys Vlasenko
a3ec3bd0f8 arping: change a few message strings to be closer to iputils arping
ARPING 192.168.1.1 from 192.168.1.172 wlan0
Unicast reply from 192.168.1.1 [F4:F2:6D:52:A8:DE]  1.672ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

ARPING 192.168.1.1 from 192.168.1.172 wlan0
Unicast reply from 192.168.1.1 [f4:f2:6d:52:a8:de] 1.152ms
Sent 1 probe(s) (1 broadcast(s))
Received 1 response(s) (0 request(s), 0 broadcast(s))

function                                             old     new   delta
finish                                               120     100     -20

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 13:37:07 +01:00
Denys Vlasenko
f5d50fbd2f arping: code shrink
Do not clear extra bits on option_mask32, it's not necessary.
Move DAD bit to 2, this makes exit logic simpler.

function                                             old     new   delta
arping_main                                         1655    1629     -26

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-11 13:27:54 +01:00
Denys Vlasenko
68ae54243c ip: fix crash in "ip neigh show"
parse_rtattr() was using tb[] array without initializing it.

Based on patch by Balaji Punnuru <balaji_punnuru@cable.comcast.com>

function                                             old     new   delta
parse_rtattr                                          85     107     +22
print_route                                         1630    1617     -13
print_linkinfo                                       807     794     -13
iproute_get                                          835     822     -13
print_rule                                           680     665     -15
ll_remember_index                                    263     248     -15
print_addrinfo                                      1223    1197     -26
ipaddr_list_or_flush                                1253    1223     -30
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/7 up/down: 22/-125)          Total: -103 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-08 08:42:37 +01:00
Denys Vlasenko
237a900bc5 wget: do not ask for TLS-encrypted downloads on plain ftp:// URLs
function                                             old     new   delta
wget_main                                           2422    2431      +9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-08 00:28:30 +01:00
Denys Vlasenko
2bd5b4e9a0 udhcp: do not setlinebuf(stdout), we don't print to stdout anymore
Since bb_info_msg() was eliminated type of buffering on stdout is not important

function                                             old     new   delta
udhcpd_main                                         1463    1451     -12
udhcpc_main                                         2735    2723     -12
setlinebuf                                            19       -     -19
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/2 up/down: 0/-43)             Total: -43 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-07 16:32:30 +01:00
Denys Vlasenko
2b7515722b wget: attempt to negotiate encrypted data ftps stream ("PROT P")
function                                             old     new   delta
wget_main                                           2382    2422     +40

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 20:49:27 +01:00
Denys Vlasenko
8d943175ce fix a thinko in parse_pasv_epsv.c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 17:11:15 +01:00
Denys Vlasenko
1783ffa990 wget: add EPSV support
function                                             old     new   delta
parse_pasv_epsv                                        -     151    +151
wget_main                                           2440    2382     -58
xconnect_ftpdata                                     223      94    -129
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/2 up/down: 151/-187)          Total: -36 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 15:48:12 +01:00
Denys Vlasenko
403f2999f9 wget: initial support for ftps://
function                                             old     new   delta
spawn_ssl_client                                       -     185    +185
parse_url                                            409     461     +52
packed_usage                                       32259   32278     +19
tls_run_copy_loop                                    293     306     +13
ssl_client_main                                      128     138     +10
showmode                                             330     338      +8
P_FTPS                                                 -       5      +5
filter_datapoints                                    177     179      +2
deflate                                              907     905      -2
decode_one_format                                    723     716      -7
wget_main                                           2591    2440    -151
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 6/3 up/down: 294/-160)          Total: 134 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 15:15:08 +01:00
Denys Vlasenko
e999657f6d wget: preparations for ftps:// support (block move, no code changes)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 15:02:16 +01:00
Denys Vlasenko
98066662aa tls: fix hash calculations if client cert is requested and sent
Symptoms: connecting to
    openssl s_server -cert vsftpd.pem -port 990 -debug -cipher AES128-SHA
works, but with "-verify 1" option added it does not.

function                                             old     new   delta
tls_xread_record                                     474     499     +25
tls_handshake                                       1582    1607     +25
bad_record_die                                        98     110     +12
tls_run_copy_loop                                    282     293     +11
tls_xread_handshake_block                             58      51      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 73/-7)              Total: 66 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-06 13:33:00 +01:00
Denys Vlasenko
5740e15de5 ftpd: handle restarts past 2147483647 bytes. closes 10741
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-05 19:06:40 +01:00
Denys Vlasenko
f75a7c0439 ftpd: fix aliasing warning from gcc-6.1.1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04 23:55:14 +01:00
Denys Vlasenko
05b84d4e92 ftpgetput: add EPSV support (PASV-like thing for IPv6)
Based on a patch by Kev Kitchens.

function                                             old     new   delta
xconnect_ftpdata                                     149     223     +74

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04 19:08:34 +01:00
Denys Vlasenko
daa643205f ftpgetput: preparations for ESPV support, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04 18:49:31 +01:00
Denys Vlasenko
565af23222 ftpd: switch to mallced "globals"
function                                             old     new   delta
cmdio_write_ok                                        45      49      +4
cmdio_write_error                                     45      49      +4
handle_dir_common                                    360     363      +3
handle_cwd                                            40      43      +3
port_or_pasv_was_seen                                 37      39      +2
pasv_active                                           13      15      +2
cmdio_write_raw                                       34      36      +2
cmdio_write                                           78      80      +2
get_remote_transfer_fd                                94      93      -1
port_pasv_cleanup                                     50      45      -5
bind_for_passive_mode                                124     119      -5
cmdio_get_cmd_and_arg                                237     230      -7
timeout_handler                                      104      93     -11
ftpd_main                                           2222    2152     -70
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/6 up/down: 22/-99)            Total: -77 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04 18:32:21 +01:00
Denys Vlasenko
06076494da udhcpd: use ptr_to_globals for its lone global data (g_leases)
function                                             old     new   delta
udhcpd_main                                         1461    1463      +2
add_lease                                            320     318      -2
g_leases                                               4       -      -4
write_leases                                         223     214      -9
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 2/-15)             Total: -13 bytes
   text	   data	    bss	    dec	    hex	filename
 933232	    481	   6856	 940569	  e5a19	busybox_old
 933223	    481	   6852	 940556	  e5a0c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01 10:41:14 +01:00
Denys Vlasenko
30b290f996 udhcpc6: additional fix for ppp interface type
Invent a fictitious MAC only once

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-23 16:46:31 +01:00
Denys Vlasenko
f6dd9e0215 udhcpc6: fix for ppp interface type
function                                             old     new   delta
d6_read_interface                                    454     600    +146

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-19 18:44:19 +01:00
Denys Vlasenko
7c44b600f9 udhcpc[6]: remove overzealous timeout clamping code
function                                             old     new   delta
udhcpc_main                                         2840    2826     -14
udhcpc6_main                                        2699    2670     -29

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-17 13:55:51 +01:00
Denys Vlasenko
64211ce6fa udhcpc6: --help fixes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-16 22:23:38 +01:00