Denys Vlasenko [Tue, 11 Apr 2017 11:33:54 +0000 (13:33 +0200)]
fallocate: new applet
NAME
fallocate - preallocate or deallocate space to a file
SYNOPSIS
fallocate [-c|-p|-z] [-o offset] -l length [-n] filename
fallocate -d [-o offset] [-l length] filename
DESCRIPTION
fallocate is used to manipulate the allocated disk space for a file,
either to deallocate or preallocate it. For filesystems which support
the fallocate system call, preallocation is done quickly by allocating
blocks and marking them as uninitialized, requiring no IO to the data
blocks. This is much faster than creating a file by filling it with
zeroes.
function old new delta
fallocate_main - 179 +179
applet_names 2597 2606 +9
applet_main 1504 1508 +4
applet_suid 94 95 +1
applet_install_loc 188 189 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Apr 2017 09:53:05 +0000 (11:53 +0200)]
fsfreeze: new applet
NAME
fsfreeze - suspend access to a filesystem (Ext3/4, ReiserFS, JFS, XFS)
SYNOPSIS
fsfreeze --freeze|--unfreeze mountpoint
DESCRIPTION
fsfreeze suspends or resumes access to a filesystem.
fsfreeze halts any new access to the filesystem and creates a stable
image on disk.
AVAILABILITY
The fsfreeze command is part of the util-linux 2.28
function old new delta
fsfreeze_main - 81 +81
applet_names 2597 2606 +9
applet_main 1504 1508 +4
applet_suid 94 95 +1
applet_install_loc 188 189 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Apr 2017 05:50:42 +0000 (07:50 +0200)]
factor: remove debug code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Apr 2017 05:34:56 +0000 (07:34 +0200)]
libbb: move isqrt from factor, use it in diff too
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Apr 2017 05:02:42 +0000 (07:02 +0200)]
factor: much faster, and very slightly larger isqrt()
function old new delta
isqrt_odd 70 88 +18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Apr 2017 16:30:35 +0000 (18:30 +0200)]
factor: don't be too clever in isqrt - be small instead
function old new delta
isqrt_odd 111 70 -41
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Apr 2017 11:53:57 +0000 (13:53 +0200)]
factor: add code to test isqrt() correctness
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Apr 2017 10:10:46 +0000 (12:10 +0200)]
factor: 25% faster sieving
function old new delta
factorize 287 260 -27
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Apr 2017 09:47:48 +0000 (11:47 +0200)]
factor: better comments, slightl more clever conversion even->odd
function old new delta
isqrt_odd 114 111 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Apr 2017 08:13:14 +0000 (10:13 +0200)]
factor: fix HALF_FMT usage
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 22:41:11 +0000 (00:41 +0200)]
factor: fix comments
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 22:28:26 +0000 (00:28 +0200)]
factor: a bit more simple isqrt
function old new delta
isqrt_odd 87 80 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 22:24:16 +0000 (00:24 +0200)]
factor: simpler isqrt
function old new delta
isqrt_odd 102 87 -15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 21:19:47 +0000 (23:19 +0200)]
factor: factor2 variable is unused now, drop it
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 21:12:38 +0000 (23:12 +0200)]
factor: expand comments
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 20:54:57 +0000 (22:54 +0200)]
factor: 30% faster code (estimate max possible factor just once)
function old new delta
factorize - 161 +161
isqrt_odd - 102 +102
factor_main 281 110 -171
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 263/-171) Total: 92 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 19:19:29 +0000 (21:19 +0200)]
nl: fix copyright message
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Apr 2017 19:18:43 +0000 (21:18 +0200)]
factor: new applet
thus far only able to factor up to ULLONG_MAX
function old new delta
factor_main - 378 +378
packed_usage 31427 31502 +75
applet_names 2590 2597 +7
applet_main 1500 1504 +4
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/0 up/down: 464/0) Total: 464 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 19:47:53 +0000 (21:47 +0200)]
nproc: new applet
function old new delta
nproc_main - 98 +98
applet_names 2584 2590 +6
applet_main 1496 1500 +4
applet_install_loc 187 188 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 19:10:00 +0000 (21:10 +0200)]
shred: smaller code
function old new delta
shred_main 361 356 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 18:45:08 +0000 (20:45 +0200)]
shred: new applet
function old new delta
shred_main - 361 +361
packed_usage 31427 31467 +40
applet_names 2578 2584 +6
applet_main 1492 1496 +4
run_applet_and_exit 679 682 +3
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/0 up/down: 414/0) Total: 414 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 17:13:09 +0000 (19:13 +0200)]
init: dont send "Sent SIGTERM to all" msg to syslog: we just TERMed it!
While at it, explain FEATURE_INIT_SYSLOG
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 16:22:41 +0000 (18:22 +0200)]
ipaddress: tweak help text more: mention "brd +" syntax
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 16:14:46 +0000 (18:14 +0200)]
ipaddress: tweak help text
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 15:33:26 +0000 (17:33 +0200)]
iproute: add "a" command as a synonym to "add"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 15:15:40 +0000 (17:15 +0200)]
libiproute: FACT_FUNCization
function old new delta
get_addr_1 258 287 +29
next_arg - 22 +22
print_neigh 885 902 +17
do_iplink 1269 1276 +7
get_unsigned 54 55 +1
get_u32 54 55 +1
get_u16 62 63 +1
rt_addr_n2a 53 52 -1
ipaddr_modify 1229 1226 -3
get_addr32 58 54 -4
invarg_1_to_2 18 12 -6
inet_addr_match 109 103 -6
duparg2 18 12 -6
duparg 18 12 -6
print_addrinfo 1231 1223 -8
ipneigh_list_or_flush 724 714 -10
incomplete_command 10 - -10
iproute_get 847 835 -12
ipaddr_list_or_flush 1265 1253 -12
get_prefix 356 344 -12
do_add_or_delete 1162 1150 -12
get_addr 73 58 -15
iproute_list_or_flush 1210 1191 -19
parse_args 1434 1412 -22
print_rule 634 610 -24
iprule_modify 864 816 -48
print_route 1621 1565 -56
iproute_modify 1221 1164 -57
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 6/20 up/down: 78/-349) Total: -271 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Apr 2017 15:00:53 +0000 (17:00 +0200)]
iproute: support advmss option
function old new delta
iproute_modify 1164 1221 +57
str_is_lock - 22 +22
packed_usage 31372 31382 +10
do_iproute 157 132 -25
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 89/-25) Total: 64 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Apr 2017 15:54:38 +0000 (17:54 +0200)]
iproute: update help text, add commented-out code for unsupported options
function old new delta
packed_usage 31327 31372 +45
do_iproute 132 157 +25
iproute_modify 1162 1164 +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 72/0) Total: 72 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Apr 2017 14:06:04 +0000 (16:06 +0200)]
iplink: implement "set promisc on|off". Closes 4682
function old new delta
do_iplink 1232 1269 +37
packed_usage 31337 31327 -10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Apr 2017 13:55:29 +0000 (15:55 +0200)]
ip link: tidying up
Misplaced comment. --help was wrong: dynamic on|off is not supported.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Apr 2017 13:22:24 +0000 (15:22 +0200)]
modprobe: do not descend into /etc/modprobe.d/DIR/. Closes 8686
Also expanded comments in recursive_action.c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Apr 2017 11:45:00 +0000 (13:45 +0200)]
modprobe-small: fix "modprobe non-existing-module" exitcode (should be 1)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ben Hutchings [Thu, 6 Apr 2017 09:54:04 +0000 (11:54 +0200)]
modprobe: read modules.builtin
This allows explicit probing to succeed when the requested module
is actually built-in, and corrects the error message for removal.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Apr 2017 22:53:43 +0000 (00:53 +0200)]
examples: make udhcpc script handle /32 netmasks
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Jody Bruchon [Thu, 30 Mar 2017 16:24:56 +0000 (12:24 -0400)]
Add help text for 'uniq -i'
Signed-off-by: Jody Bruchon <jody@jodybruchon.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Apr 2017 16:31:19 +0000 (18:31 +0200)]
nl: use CONFIG_NL, not CONFIG_UNIQ
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Apr 2017 16:17:17 +0000 (18:17 +0200)]
nl: new applet; also implement cat -nb (similar functionality to nl)
function old new delta
nl_main - 201 +201
print_numbered_lines - 115 +115
cat_main 36 149 +113
static.nl_longopts - 106 +106
packed_usage 31081 31182 +101
applet_main 1488 1492 +4
applet_names 2575 2578 +3
applet_suid 93 94 +1
applet_install_loc 186 187 +1
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 6/0 up/down: 645/0) Total: 645 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 3 Apr 2017 23:41:15 +0000 (01:41 +0200)]
tls: do not compile in TLS_RSA_WITH_NULL_SHA256 code if unreachable
function old new delta
tls_handshake 1595 1588 -7
xwrite_encrypted 244 209 -35
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 3 Apr 2017 19:53:29 +0000 (21:53 +0200)]
tls: avoid using int16 in pstm code
function old new delta
pstm_div 1472 1522 +50
psRsaEncryptPub 403 413 +10
pstm_2expt 91 96 +5
pstm_clear 68 72 +4
pstm_init 39 42 +3
pstm_unsigned_bin_size 36 37 +1
pstm_montgomery_reduce 398 399 +1
pstm_init_size 45 46 +1
pstm_zero 39 38 -1
pstm_set 35 34 -1
pstm_read_unsigned_bin 112 109 -3
pstm_mulmod 123 120 -3
pstm_mod 116 113 -3
pstm_cmp 57 54 -3
pstm_sub 107 102 -5
pstm_to_unsigned_bin 157 151 -6
pstm_clamp 63 57 -6
pstm_add 116 108 -8
pstm_grow 81 72 -9
pstm_count_bits 57 48 -9
pstm_init_copy 84 72 -12
pstm_cmp_mag 93 78 -15
pstm_sqr_comba 567 551 -16
pstm_montgomery_calc_normalization 158 140 -18
pstm_copy 115 92 -23
pstm_lshd 133 109 -24
pstm_mul_comba 525 500 -25
pstm_mul_d 251 224 -27
s_pstm_sub 256 228 -28
s_pstm_add 370 337 -33
pstm_div_2d 444 409 -35
pstm_mul_2 195 156 -39
pstm_rshd 154 104 -50
pstm_mul_2d 247 186 -61
pstm_exptmod 1524 1463 -61
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/27 up/down: 75/-524) Total: -449 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 3 Apr 2017 15:43:44 +0000 (17:43 +0200)]
tls: merge sha1 and sha256 hmac functions
function old new delta
hmac_begin - 196 +196
hmac_sha256 61 68 +7
hmac 250 87 -163
hmac_sha256_begin 190 - -190
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/1 up/down: 203/-353) Total: -150 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 1 Apr 2017 18:11:59 +0000 (20:11 +0200)]
tls: replace aes encryption/decryption by much smaller one
The replacement code is ~6 times slower,
but drastically decreases size of tls_aes.o:
text data bss dec hex filename
8050 0 0 8050 1f72 tls_aes_OLD.o
2461 0 0 2461 99d tls_aes.o
function old new delta
sbox - 256 +256
rsbox - 256 +256
KeyExpansion - 197 +197
Subword - 66 +66
AddRoundKey - 61 +61
static.Rcon - 10 +10
rcon 40 - -40
setup_mix 80 - -80
setup_mix2 123 - -123
aes_cbc_decrypt 1377 971 -406
aes_cbc_encrypt 1375 644 -731
psAesInit 848 - -848
Te4 1024 - -1024
TE0 1024 - -1024
TD0 1024 - -1024
Td4 1040 - -1040
------------------------------------------------------------------------------
(add/remove: 6/8 grow/shrink: 0/2 up/down: 846/-6340) Total: -5494 bytes
This code is based on public domain "tiny-AES128-C" code.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Jody Bruchon [Thu, 30 Mar 2017 16:15:54 +0000 (18:15 +0200)]
uniq: add -i option to ignore case
Signed-off-by: Jody Bruchon <jody@jodybruchon.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Thu, 9 Feb 2017 14:48:51 +0000 (22:48 +0800)]
Update depmod & modprobe upstream help text in comments
No code changes.
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 27 Mar 2017 20:49:12 +0000 (22:49 +0200)]
udhcp6: move misplaced comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 27 Mar 2017 20:32:44 +0000 (22:32 +0200)]
udhcp6: fix releasing
Patch is based on work by tiggerswelt.net. They say:
"
We wanted udhcpc6 to release its IPv6-Addresses on
quit (-R-commandline-option) which turned out to generate once again
kind of garbage on the network-link.
We tracked this down to two issues:
- udhcpc6 uses a variable called "srv6_buf" to send packets to
the dhcp6-server, but this variable is never initialized correctly
and contained kind of a garbage-address
- The address of the dhcp6-server is usually a link-local-address,
that requires an interface-index when using connect() on an AF_INET6-
socket
We added an
additional parameter for ifindex to d6_send_kernel_packet() and made
d6_recv_raw_packet() to capture the address of the dhcp6-server and
forward it to its callee.
"
Three last patches together:
function old new delta
d6_read_interface - 454 +454
d6_recv_raw_packet - 283 +283
option_to_env 249 504 +255
.rodata 165226 165371 +145
send_d6_discover 195 237 +42
send_d6_select 118 159 +41
send_d6_renew 173 186 +13
send_d6_release 162 173 +11
opt_req - 10 +10
d6_send_kernel_packet 304 312 +8
opt_fqdn_req - 6 +6
d6_mcast_from_client_config_ifindex 48 51 +3
d6_find_option 63 61 -2
udhcpc6_main 2416 2411 -5
static.d6_recv_raw_packet 266 - -266
------------------------------------------------------------------------------
(add/remove: 5/1 grow/shrink: 8/2 up/down: 1271/-273) Total: 998 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 27 Mar 2017 20:22:09 +0000 (22:22 +0200)]
udhcp6: fix problems found running against dnsmasq
Patch is based on work by tiggerswelt.net. They say:
"
But when we tried to use dnsmasq on server-side, udhcpc6 was unable to
forward the acquired address to its setup-script although the
IPv6-Address had been assigned by the server as we could see via
tcpdump. We traced this issue down to a problem on how udhcpc6 parses
DHCPv6-Options: When moving to next option, a pointer-address is
increased and a length buffer is decreased by the length of the option.
The problem is that it is done in this order:
option += 4 + option[3];
len_m4 -= 4 + option[3];
But this has to be switched as the length is decreased by the length of
the *next* option, not the current one. This affected both - internal
checks if a required option is present and the function to expose
options to the environment of the setup-script.
There was also a bug parsing D6_OPT_STATUS_CODE Options, that made
dnsmasq not work as udhcpc6 thought it is receiving a non-positive
status-code (because it did not parse the status-code as required in RFC
3315).
In addition we introduced basic support for RFC 3646 (OPTION_DNS_SERVERS
and OPTION_DOMAIN_LIST) and RFC 4704 (OPTION_CLIENT_FQDN).
"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 27 Mar 2017 20:10:15 +0000 (22:10 +0200)]
udhcp6: read_interface should save link-local ipv6 address
Patch is based on work by tiggerswelt.net. They say:
"Using this patch it was no problem to acquire an IPv6-Address via DHCPv6
using ISC DHCPD6 on server-side."
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Yousong Zhou [Fri, 24 Mar 2017 20:13:10 +0000 (21:13 +0100)]
vi: avoid touching a new file with ZZ when no editing has been done
This is the behaviour observed with standard vim and busybox vi of at
least 1.22.1. It was changed with commit "
32afd3a vi: some
simplifications" which happened before 1.23.0.
Mistyping filename on command line happens fairly often and it's better
we restore the old behaviour to avoid a few unnecessary flash writes and
sometimes efforts of debugging bugs caused by those unneeded stray
files.
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Andrei Gherzan [Fri, 24 Mar 2017 15:39:08 +0000 (16:39 +0100)]
switch_root: don't bail out when console doesn't exist
Busybox is very often used in initramfs at the end of which usually
there is a switch_root to the actual rootfs. There are many cases where
the console kernel argument is either just a placeholder (for example
RaspberryPi uses serial0 and serial1) or configured as null to avoid any
console messages - usually you would see such of a setup in production
environments.
Currently busybox bails out if can't open the console argument. If this
happenes in initramfs and if the console=null for example, you get in a
blind kernel panic. Avoid this by only warning instead of dying.
function old new delta
switch_root_main 371 368 -3
Signed-off-by: Andrei Gherzan <andrei@gherzan.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 24 Mar 2017 14:00:12 +0000 (15:00 +0100)]
whitespace fix
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 23 Mar 2017 16:58:32 +0000 (17:58 +0100)]
paste: delimiter list use should restart for each new output line
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 23 Mar 2017 16:41:59 +0000 (17:41 +0100)]
typo fix
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Maxime Coste [Thu, 23 Mar 2017 16:35:20 +0000 (17:35 +0100)]
paste: new applet
function old new delta
paste_main - 493 +493
packed_usage 31019 31070 +51
applet_names 2569 2575 +6
applet_main 1484 1488 +4
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/0 up/down: 554/0) Total: 554 bytes
Signed-off-by: Maxime Coste <mawww@kakoune.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Rostislav Skudnov [Thu, 16 Mar 2017 19:54:35 +0000 (20:54 +0100)]
dd: call fsync() only once before exiting if conv=fsync is specified
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Mar 2017 16:45:07 +0000 (17:45 +0100)]
Revert "umount: make -d always active, add -D to suppress it"
This reverts commit
86a03bee1d3d6990c03bf500836b19ec8a1c1f12.
Since now our "mount -oloop" creates AUTOCLEARed loopdevs, we no longer
need our umount to destroy loopdevs to match the usual util-linux behaviour.
Now this revert fixes another, opposite bug: "explicit" mount /dev/loopN
and then umount must not drop loopdevs!
User complaint is as follows:
It seems LOOP_CLR_FD called on a loop-*partition* removes the mapping of
the whole *device* - which results in the following:
root@LEDE:/# loop=$(losetup -f)
root@LEDE:/# echo ${loop}
/dev/loop2
root@LEDE:/# losetup ${loop} /IMAGE
root@LEDE:/# ls -l ${loop}*
brw------- 1 root root 7, 2 Mar 6 20:09 /dev/loop2
root@LEDE:/# partprobe ${loop}
root@LEDE:/# ls -l ${loop}*
brw------- 1 root root 7, 2 Mar 6 20:09 /dev/loop2
brw------- 1 root root 259, 8 Mar 6 21:59 /dev/loop2p1
brw------- 1 root root 259, 9 Mar 6 21:59 /dev/loop2p2
brw------- 1 root root 259, 10 Mar 6 21:59 /dev/loop2p3
brw------- 1 root root 259, 11 Mar 6 21:59 /dev/loop2p4
brw------- 1 root root 259, 12 Mar 6 21:59 /dev/loop2p5
brw------- 1 root root 259, 13 Mar 6 21:59 /dev/loop2p6
brw------- 1 root root 259, 14 Mar 6 21:59 /dev/loop2p7
brw------- 1 root root 259, 15 Mar 6 21:59 /dev/loop2p8
root@LEDE:/# mount ${loop}p8 /MOUNT # mount loop partition
root@LEDE:/# losetup -a | grep $loop # loop dev mapping still there
/dev/loop2: 0 /mnt/IMAGE
root@LEDE:/# strace umount /MOUNT 2> /log # unmount loop partition
root@LEDE:/# losetup -a | grep ${loop} # loop device mapping is gone
root@LEDE:/# grep -i loop /log
open("/dev/loop2p7", O_RDONLY|O_LARGEFILE) = 3
ioctl(3, LOOP_CLR_FD) = 0
root@LEDE:/#
The strace was done to figure out, if maybe umount wrongly ioctl()'s the
parent device instead of the partition - it doesn't.
I already wasn't a fan of umount implicitly removing the mapping in the
first place (as I usually setup and release loop devices with `losetup`
and scripts needed to call umount differently in order to work and
outside busybox).
However taking above (kernel-)behaviour into account - umount calling
ioctl(LOOP_CLR_FD) unconditionally potentially causes some nasty side
effects
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Mar 2017 15:49:37 +0000 (16:49 +0100)]
mount: create loop devices with LO_FLAGS_AUTOCLEAR flag
The "autolooped" mount (mount [-oloop] IMAGE /DIR/DIR)
always creates AUTOCLEARed loopdevs, so that umounting
drops them (and this does not require any code in the
umount userspace).
This happens since circa linux-2.6.25:
commit
96c5865559cee0f9cbc5173f3c949f6ce3525581
Date: Wed Feb 6 01:36:27 2008 -0800
Subject: Allow auto-destruction of loop devices
IOW: in this case, umount does not have to use -d
to drop the loopdev.
The explicit loop mount (mount /dev/loopN /DIR/DIR)
does not do this. In this case, umount without -d
should not drop loopdev.
Unfortunately, bbox umount currently always implies -d,
this probably needs fixing.
function old new delta
set_loop 537 597 +60
singlemount 1101 1138 +37
losetup_main 419 432 +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 110/0) Total: 110 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 13 Mar 2017 21:32:05 +0000 (22:32 +0100)]
runit: fix chpst -n -N -u USER
busybox's chpst first switches user/group and then tries to call nice().
Once the root priviledges are dropped, process priority can only be lowered.
So negative nice values don't work anymore.
Upstream version of chpst correctly calls nice() before switching user.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 13 Mar 2017 19:50:42 +0000 (20:50 +0100)]
vi: don't touch file with :x when modified_count == 0
Along with it, there are other changes
- Check for uppercase X is removed as the expression will be always false and
:X itself is another totally different command in standard vim
- The status line will show number of written lines instead of lines requested
by the colon command. This is also how the standard vim is doing, though
the difference is that '!' has to be explicitly specified in vim to allow
partial writes
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Glenn Matthews [Fri, 17 Feb 2017 22:01:13 +0000 (23:01 +0100)]
reset: before calling execvp(), reset needs to flush stdout
Signed-off-by: Glenn Matthews <glmatthe@cisco.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Fri, 17 Feb 2017 11:04:24 +0000 (19:04 +0800)]
Fix FEATURE_{GZIP,BZIP2}_DECOMPRESS link error
... when gzip is selected but not gunzip nor zcat, or when bzip2 is
selected but not bunzip2 nor bzcat.
This regression is introduced in
b130f9f758b6404c6d0911a1c120937ae6ab47f8
("Allow 'gzip -d' and 'bzip2 -d' without gunzip or bunzip2")
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 17 Feb 2017 18:20:32 +0000 (19:20 +0100)]
udhcpc: make sure we do not overflow poll timeout
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 17 Feb 2017 16:48:59 +0000 (17:48 +0100)]
nc_bloaty: use poll() instead of select()
function old new delta
readwrite 829 715 -114
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Feb 2017 22:25:44 +0000 (23:25 +0100)]
udhcp: use poll() instead of select()
function old new delta
udhcp_sp_read 65 46 -19
udhcp_sp_fd_set 79 54 -25
udhcpd_main 1530 1482 -48
udhcpc_main 2780 2730 -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-142) Total: -142 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Feb 2017 19:04:19 +0000 (20:04 +0100)]
udhcp: do not clobber errno by signal handler
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Feb 2017 16:17:17 +0000 (17:17 +0100)]
nc: use poll() instead of select()
function old new delta
nc_main 943 866 -77
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 16 Feb 2017 15:27:39 +0000 (16:27 +0100)]
tls: covert i/o loop from using select() to poll()
function old new delta
tls_run_copy_loop 377 282 -95
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 12 Feb 2017 20:57:22 +0000 (21:57 +0100)]
sendmail: allow "+" symbol in recipient. Closes 9646
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Thu, 9 Feb 2017 14:48:52 +0000 (22:48 +0800)]
modprobe-small: define and use DEPMOD_OPT_n (option mask)
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Thu, 9 Feb 2017 14:48:50 +0000 (22:48 +0800)]
modprobe-small: document '-n' in depmod usage
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 7 Feb 2017 15:41:25 +0000 (16:41 +0100)]
modprobe_small: if only MODPROBE and DEPMOD are selected, no need to test for them
function old new delta
modprobe_main 321 306 -15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Wed, 1 Feb 2017 11:43:54 +0000 (19:43 +0800)]
Reorder modutils config options & fix yet more dependency
- modprobe can indirectly benefit from FEATURE_2_4_MODULES and
FEATURE_INSMOD_TRY_MAP options.
- The position of config FEATURE_INSMOD_TRY_MMAP prevented some other
config options from indenting under FEATURE_2_4_MODULES. Reorder to
fix this.
- FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED is now moved to
Config.src under "Common options" section. (I wished to edit this
config so that it also work with "big" modutils, but it's not done at
the moment. Sorry.)
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Sun, 5 Feb 2017 18:02:34 +0000 (19:02 +0100)]
modutils: fix config options dependency (2)
- The modprobe-small implementation of rmmod no longer chdir's to
"/lib/modules/`uname -r`" as it was not necessary for rmmod's
operation. (And it no longer need to die if such modules directory
doesn't exist.)
- Configs DEFAULT_MODULES_DIR and DEFAULT_DEPMOD_FILE no longer depend
on MODPROBE_SMALL as the latter may not enable depmod or modprobe
that requires these configs.
- Clarify DEFAULT_DEPMOD_FILE's description regarding the ".bb" name
suffix.
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 4 Feb 2017 22:19:30 +0000 (23:19 +0100)]
httpd: use "Content-Length", not "-length"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Rostislav Skudnov [Wed, 1 Feb 2017 18:35:13 +0000 (18:35 +0000)]
Replace int -> uint to avoid signed integer overflow
An example of such an error (should be compiled with DEBUG_SANITIZE):
runtime error: left shift of 1 by 31 places cannot be represented in
type 'int'
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 4 Feb 2017 15:23:49 +0000 (16:23 +0100)]
tls: fold AES CBC en/decryption into single functions
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 3 Feb 2017 17:19:59 +0000 (18:19 +0100)]
wget/tls: session_id of zero length is ok (arxiv.org responds with such)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 3 Feb 2017 12:00:06 +0000 (13:00 +0100)]
ash: add INT_OFF/ON around allocations
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 2 Feb 2017 12:04:30 +0000 (13:04 +0100)]
ps: avoid -o stat to contain spaces. Closes 9631
function old new delta
procps_scan 1227 1236 +9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Tue, 31 Jan 2017 13:09:17 +0000 (21:09 +0800)]
cmdline module options can be disabled on "big" modutils
Allow module options on command line to be disabled on "big" modutils.
Config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE is renamed to
FEATURE_CMDLINE_MODULE_OPTIONS and no longer depends on !MODPROBE_SMALL
(I'm not sure if disabling this is useful on "big" modutils, but at
least the macro can serve as a marker and ensure both implementations
of same feature have consistent behavior.)
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Wed, 1 Feb 2017 00:43:32 +0000 (01:43 +0100)]
modutils: remove redundant "select PLATFORM_LINUX" configs
It is enough to have only applets' configs select PLATFORM_LINUX.
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Tue, 31 Jan 2017 09:06:43 +0000 (17:06 +0800)]
modprobe-small: move lsmod code out of modprobe_main()
Having lsmod code inside modprobe_main() makes some of the applet name
checking code awkward. Besides, this make busybox x86_64 binary a few
bytes smaller. :)
function old new delta
lsmod_main - 23 +23
modprobe_main 599 564 -35
-------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 23/-35) Total: -12 bytes
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 1 Feb 2017 00:22:37 +0000 (01:22 +0100)]
modprobe-small: improve config help text
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Felix Fietkau [Tue, 31 Jan 2017 20:58:55 +0000 (21:58 +0100)]
ash: improve / fix glob expansion
When using musl libc glob() a very long string can cause glob() to fail,
which leads to an out of memory error being raised by ash.
This can happen easily if a very long quoted string contains *, even
though no glob expansion should ever be performed on it (since it's
quoted).
Fix this by properly parsing control characters and escaping and only
accept unquoted metacharacters. While we're at it, unify this check for
libc and built-in glob expansion
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 30 Jan 2017 21:20:06 +0000 (22:20 +0100)]
taskset: simplify code a bit; tweak --help
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 30 Jan 2017 18:21:12 +0000 (19:21 +0100)]
modprobe-small: fix --help texts, they are from "big" modutils
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kang-Che Sung [Mon, 30 Jan 2017 18:14:50 +0000 (19:14 +0100)]
modutils: fix config options dependency
module.aliases and module.symbols files have no use in modprobe-small
implementation. So FEATURE_MODUTILS_ALIAS and FEATURE_MODUTILS_SYMBOLS
will depend on !MODPROBE_SMALL.
The try_to_mmap_module() function is not called in modprobe-small.c,
so I will let FEATURE_INSMOD_TRY_MMAP depend on !MODPROBE_SMALL for
now.
Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Likewise, FEATURE_2_4_MODULES is not used by modprobe-small.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 30 Jan 2017 15:27:37 +0000 (16:27 +0100)]
wget: add a big explanation what TLS code implements and what does not
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 23:45:05 +0000 (00:45 +0100)]
libbb: match_fstype() is unreadable in the extreme, fixing it
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 18:14:26 +0000 (19:14 +0100)]
vi,fsck: do not use build timestamp unconditionally. Closes 9626
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 17:59:38 +0000 (18:59 +0100)]
taskset: separate "current" and "new" strings
Better for constant sharing:
text data bss dec hex filename
912997 485 6856 920338 e0b12 busybox_old
912988 485 6856 920329 e0b09 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 17:48:58 +0000 (18:48 +0100)]
typo in comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 17:19:29 +0000 (18:19 +0100)]
taskset: rewrite to be task size-agnostic
function old new delta
packed_usage 31130 31190 +60
taskset_main 623 525 -98
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 60/-98) Total: -38 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 29 Jan 2017 13:57:33 +0000 (14:57 +0100)]
*: add comment about APPLET_ODDNAME format
It confused me more than once
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 26 Jan 2017 18:35:40 +0000 (19:35 +0100)]
httpd: defend against attempts to OOM us. Closes 9611
We were strdup'ing "Cookie: foo" every time we saw it.
function old new delta
handle_incoming_and_exit 2733 2821 +88
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 26 Jan 2017 17:54:12 +0000 (18:54 +0100)]
adduser: help for -G GRP is misleading, fix it
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 26 Jan 2017 17:31:51 +0000 (18:31 +0100)]
sh: fix FEATURE_SH_STANDALONE help text: it does not enable NOFORK
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 26 Jan 2017 00:13:58 +0000 (01:13 +0100)]
libbb: spawn_and_wait() fflushes before forking NOEXEC; child reinits logmode
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 25 Jan 2017 23:27:53 +0000 (00:27 +0100)]
link: new applet
coreutils grew itself a tiny simplistic alternative to ln:
Usage: link FILE LINK
Create hard LINK to FILE
function old new delta
link_main - 75 +75
packed_usage 31114 31131 +17
applet_names 2564 2569 +5
applet_main 1480 1484 +4
applet_install_loc 185 186 +1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/0 up/down: 102/0) Total: 102 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 25 Jan 2017 16:00:38 +0000 (17:00 +0100)]
xxd: make -p output lines actually end with a newline
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 25 Jan 2017 15:50:30 +0000 (16:50 +0100)]
xxd: implement -p
While at it, tweaked hexdump --help
function old new delta
xxd_main 364 414 +50
packed_usage 31097 31114 +17
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
projects / oweals / busybox.git / log