Gavin Howard [Sat, 3 Nov 2018 17:00:21 +0000 (11:00 -0600)]
bc: new applet, throws warning
Signed-off-by: Gavin Howard <yzena.tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Mon, 3 Dec 2018 09:07:58 +0000 (10:07 +0100)]
vi: correctly detect when a deletion empties the buffer
Michał Berger has reported two issues:
- Repeatedly deleting and undoing the deletion of the last line
results in characters being lost from the end of the line.
- Deleting the bottom line twice then attempting to undo each of
these deletions results in a segfault.
The problem seems to be an incorrect test for whether the text buffer
is empty.
Reported-by: Michał Berger <michallinuxstuff@gmail.com>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Nov 2018 13:39:52 +0000 (14:39 +0100)]
vi: code shrink
function old new delta
char_search 241 247 +6
get_one_address 275 272 -3
colon 2878 2875 -3
do_cmd 4726 4720 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 6/-12) Total: -6 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Nov 2018 13:19:57 +0000 (14:19 +0100)]
vi: fix FEATURE_VI_REGEX_SEARCH to respect LIMITED (one-line) search
If busybox is compiled with FEATURE_VI_REGEX_SEARCH enabled, command
":s/x/y/" searches not only in the current line, but continues search
after it. This makes range searches (":1,3s/x/y/") work incorrect. For
example file "./test":
1
2
3
$ vi ./test
:1,2s/3/e/
gives us:
1
2
e
function old new delta
char_search 213 241 +28
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Nov 2018 12:15:57 +0000 (13:15 +0100)]
libbb: do not misinterpret 0x10-0x19 chars in "\xNNN" too
function old new delta
bb_process_escape_sequence 141 151 +10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Nov 2018 11:34:50 +0000 (12:34 +0100)]
libbb: @ in "\x3@" is not a valid hex digit
function old new delta
bb_process_escape_sequence 134 141 +7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 29 Nov 2018 10:44:10 +0000 (11:44 +0100)]
cat,nl: fix handling of open errors
$ cat -n does_not_exist; echo $?
cat: does_not_exist: No such file or directory
1
function old new delta
print_numbered_lines 118 129 +11
nl_main 196 201 +5
cat_main 421 425 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 20/0) Total: 20 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 28 Nov 2018 11:16:29 +0000 (12:16 +0100)]
awk: abort if NF set to negative value
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Chen Qi [Wed, 21 Nov 2018 02:19:28 +0000 (10:19 +0800)]
testsuite: check CONFIG_DESKTOP before using 'od -t'
The '-t' option for od is enabled by CONFIG_DESKTOP. So
check this config before using 'od -t' in test cases.
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Tue, 27 Nov 2018 14:34:25 +0000 (14:34 +0000)]
hush: allow hush to run embedded scripts
Embedded scripts require a shell to be present in the BusyBox
binary. Allow either ash or hush to be used for this purpose.
If both are enabled ash takes precedence.
The size of the binary is unchanged in the default configuration:
both ash and hush are present but support for embedded scripts
isn't compiled into hush.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Nov 2018 14:43:10 +0000 (15:43 +0100)]
free: ensure there is a least one space between numbers
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Tue, 27 Nov 2018 10:45:30 +0000 (10:45 +0000)]
docs: add embedded-scripts.txt
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Nov 2018 11:09:01 +0000 (12:09 +0100)]
tar: skip 'V' headers (GNU volume label), closes 11526
function old new delta
get_header_tar 1696 1690 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Nov 2018 10:52:14 +0000 (11:52 +0100)]
unlzma: fix too-eager corruption check
function old new delta
unpack_lzma_stream 2686 2674 -12
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Nov 2018 10:26:48 +0000 (11:26 +0100)]
tar: fix too eager autodetection, closes 11531
function old new delta
is_suffixed_with - 54 +54
tar_main 1006 1026 +20
open_transformer 92 79 -13
config_file_action 478 458 -20
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 74/-33) Total: 41 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Sun, 25 Nov 2018 11:46:39 +0000 (11:46 +0000)]
build system: prevent duplicate applet names
The embedded script feature makes it easier to create applets with
duplicate names. Currently in such cases the build succeeds but
the resulting executable doesn't work as the developer intended.
Catch duplicate names when the applet tables are being generated
and make the build fail.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Wed, 21 Nov 2018 10:11:01 +0000 (10:11 +0000)]
Tweaks to build process for embedded scripts
- Force a rebuild if a script in applets_sh is changed.
- Move the dummy usage messages for custom applets to usage.h and
change the name from 'dummy' to 'scripted'.
- Hide an error from gen_build_files.sh if an embed directory exists
but is empty.
- Tidy up embedded_scripts script.
v2: Remove a couple of unnecessary tests in embedded_scripts, as
pointed out by Xabier Oneca.
Drop the stripping of comments.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 27 Nov 2018 09:35:10 +0000 (10:35 +0100)]
tls: add ECDHE_PSK and remove ARIA cipher ids
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 16:33:17 +0000 (17:33 +0100)]
tls: add _anon_ cipher definitions
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 15:39:19 +0000 (16:39 +0100)]
tls: enable TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 cipher
function old new delta
static.ciphers 30 32 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 15:30:22 +0000 (16:30 +0100)]
tls: cipher 009D is not yet supported, don't test for it
function old new delta
tls_handshake 2116 2108 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 14:55:41 +0000 (15:55 +0100)]
tls: speed up prf_hmac_sha256()
function old new delta
hmac_sha_precomputed - 58 +58
prf_hmac_sha256 181 222 +41
hmac_sha256 68 - -68
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/0 up/down: 99/-68) Total: 31 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 12:00:28 +0000 (13:00 +0100)]
libbb: add comment on sha384
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 26 Nov 2018 09:33:23 +0000 (10:33 +0100)]
tls: simplify hmac_begin()
function old new delta
hmac_begin 196 158 -38
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 23:17:10 +0000 (00:17 +0100)]
tls: add support for 8 more cipher ids - all tested to work
function old new delta
tls_handshake 2059 2116 +57
static.ciphers - 30 +30
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 87/0) Total: 87 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 17:52:47 +0000 (18:52 +0100)]
tls: fix comments
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 16:27:48 +0000 (17:27 +0100)]
tls: add a comment on expanding list of supported ciphers
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 15:17:26 +0000 (16:17 +0100)]
tls: do not leak RSA key
function old new delta
tls_handshake 1957 2059 +102
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 13:45:55 +0000 (14:45 +0100)]
tls: code shrink
function old new delta
xwrite_and_update_handshake_hash 81 80 -1
tls_handshake 1987 1957 -30
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 13:28:32 +0000 (14:28 +0100)]
tls: code shrink
function old new delta
tls_handshake 1993 1987 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 13:03:59 +0000 (14:03 +0100)]
tls: code shrink
function old new delta
aesgcm_GHASH 223 196 -27
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 25 Nov 2018 11:01:44 +0000 (12:01 +0100)]
tls: on x86, use xorbuf_aligned_AES_BLOCK_SIZE() even with non-aligned source
function old new delta
aesgcm_GHASH 228 223 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 23:53:19 +0000 (00:53 +0100)]
tls: actually fill in CIPHER_ID3 value in hello message
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 23:42:56 +0000 (00:42 +0100)]
ntpd: do not SEGV on "-p keyno:192.168.1.1", show --help instead
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 20:56:21 +0000 (21:56 +0100)]
wget: code shrink
function old new delta
base64enc 53 46 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 20:26:20 +0000 (21:26 +0100)]
tls: fix is.gd again, fix AES-CBC using decrypt key instead of encrypt
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 13:08:29 +0000 (14:08 +0100)]
tls: speed up xor'ing of aligned 16-byte buffers
function old new delta
xorbuf_aligned_AES_BLOCK_SIZE - 23 +23
xwrite_encrypted 585 580 -5
aesgcm_GHASH 233 228 -5
GMULT 192 187 -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/3 up/down: 23/-15) Total: 8 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 12:51:46 +0000 (13:51 +0100)]
tls: in AES-GCM decoding, avoid memmove
function old new delta
xorbuf3 - 36 +36
xorbuf 24 12 -12
tls_xread_record 656 634 -22
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 36/-34) Total: 2 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 24 Nov 2018 12:47:44 +0000 (13:47 +0100)]
tls: fix a thinko in GHASH optimization
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 18:24:57 +0000 (19:24 +0100)]
tls: make tls_get_random() FAST_FUNC
function old new delta
tls_handshake 1977 1985 +8
tls_get_random 32 28 -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 8/-4) Total: 4 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 18:14:52 +0000 (19:14 +0100)]
wget: print the final newline only for non-tty output
$ busybox wget URL 2>&1 | cat
Connecting to ....
install.iso 0% | | 2629k 0:02:05 ETA
install.iso 7% |** | 25.7M 0:00:23 ETA
install.iso 16% |***** | 54.1M 0:00:14 ETA
install.iso 20% |****** | 67.4M 0:00:15 ETA
install.iso 25% |******** | 81.0M 0:00:14 ETA
install.iso 30% |********* | 97.3M 0:00:13 ETA
install.iso 36% |*********** | 117M 0:00:12 ETA
install.iso 41% |************* | 134M 0:00:11 ETA
install.iso 47% |*************** | 152M 0:00:10 ETA
install.iso 54% |***************** | 176M 0:00:08 ETA
install.iso 61% |******************* | 200M 0:00:06 ETA
install.iso 66% |********************* | 215M 0:00:06 ETA
install.iso 71% |********************** | 231M 0:00:05 ETA
install.iso 75% |************************ | 244M 0:00:04 ETA
install.iso 79% |************************* | 257M 0:00:03 ETA
install.iso 84% |*************************** | 275M 0:00:02 ETA
install.iso 91% |***************************** | 297M 0:00:01 ETA
install.iso 99% |******************************* | 321M 0:00:00 ETA
install.iso 100% |********************************| 323M 0:00:00 ETA
<-- no empty line here
$
function old new delta
bb_progress_update 622 632 +10
progress_meter 152 158 +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 16/0) Total: 16 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 18:07:05 +0000 (19:07 +0100)]
tls: code shrink
function old new delta
aesgcm_GHASH 262 233 -29
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 18:00:12 +0000 (19:00 +0100)]
tls: typo fix in comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 17:55:15 +0000 (18:55 +0100)]
tls: make local buffers in aesgcm_GHASH() explicitly 32-bit aligned
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 17:48:20 +0000 (18:48 +0100)]
tls: code shrink
function old new delta
xwrite_encrypted 599 585 -14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 17:31:26 +0000 (18:31 +0100)]
tls: simplify aesgcm_GHASH()
function old new delta
xwrite_encrypted 604 599 -5
FlattenSzInBits 52 - -52
aesgcm_GHASH 395 262 -133
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-190) Total: -190 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 17:02:44 +0000 (18:02 +0100)]
tls: in AES-CBC code, do not set key for every record - do it once
function old new delta
aes_setkey 16 212 +196
tls_handshake 1941 1977 +36
aes_encrypt_1 382 396 +14
xwrite_encrypted 605 604 -1
tls_xread_record 659 656 -3
aes_encrypt_one_block 65 59 -6
aes_cbc_encrypt 172 121 -51
aesgcm_setkey 58 - -58
aes_cbc_decrypt 958 881 -77
KeyExpansion 188 - -188
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 3/5 up/down: 246/-384) Total: -138 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 23 Nov 2018 16:21:38 +0000 (17:21 +0100)]
tls: add support for TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 cipher
function old new delta
xwrite_encrypted 209 605 +396
GHASH - 395 +395
aes_encrypt_1 - 382 +382
GMULT - 192 +192
tls_xread_record 489 659 +170
aes_encrypt_one_block - 65 +65
aesgcm_setkey - 58 +58
FlattenSzInBits - 52 +52
tls_handshake 1890 1941 +51
xwrite_and_update_handshake_hash 46 81 +35
xorbuf - 24 +24
aes_setkey - 16 +16
psRsaEncryptPub 413 421 +8
stty_main 1221 1227 +6
ssl_client_main 138 143 +5
next_token 841 845 +4
spawn_ssl_client 218 219 +1
volume_id_probe_hfs_hfsplus 564 563 -1
read_package_field 232 230 -2
i2cdetect_main 674 672 -2
fail_hunk 139 136 -3
parse_expr 891 883 -8
curve25519 802 793 -9
aes_cbc_decrypt 971 958 -13
xwrite_handshake_record 43 - -43
aes_cbc_encrypt 644 172 -472
------------------------------------------------------------------------------
(add/remove: 9/1 grow/shrink: 9/8 up/down: 1860/-553) Total: 1307 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Christoph Schulz [Tue, 20 Nov 2018 16:45:52 +0000 (17:45 +0100)]
ash: reset tokpushback before prompting while parsing heredoc
The parser reads from an already freed memory location, thereby causing
unpredictable results, in the following situation:
- ENABLE_ASH_EXPAND_PRMT is enabled
- heredoc is being parsed
- command substitution is used within heredoc
Examples where this bug crops up are (PS2 is set to "> "):
$ cat <<EOF
> `echo abc`
> EOF
-sh: O: not found
$ cat <<EOF
> $(echo abc)
> EOF
-sh: {garbage}: not found
The presumable reason is that setprompt_if() causes a nested expansion when
ENABLE_ASH_EXPAND_PRMT is enabled, therefore leaving "wordtext" in an unusable
state. However, when parseheredoc() is called, "tokpushback" is non-zero, which
causes the next call to xxreadtoken() to return TWORD, causing the caller to
use the invalid "wordtoken" instead of reading the next valid token.
The call chain is:
list()
-> peektoken() [sets tokpushback to 1]
-> parseheredoc()
-> setprompt_if()
-> pushstackmark()
-> expandstr()
-> readtoken1()
[sets lasttoken to TWORD, wordtoken points to expanded prompt]
-> popstackmark() [invalidates wordtoken, leaves lasttoken as is]
-> readtoken1()
-> ...parsebackq
-> list()
-> andor()
-> pipeline()
-> readtoken()
-> xxreadtoken()
[tokpushback non-zero, reuse lasttoken and wordtext]
Note that in almost all other contexts, each call to setprompt_if() is preceded
by setting "tokpushback" to zero. One exception is "oldstyle" backquote parsing
in readtoken1(), but there "tokpushback" is reset afterwards. The other
exception is nlprompt(), but this function is only used within readtoken1()
(but in contexts where no nested calls to xxreadtoken() occur) and xxreadtoken()
(where "tokpushback" is guaranteed to be zero).
function old new delta
parseheredoc 124 131 +7
Signed-off-by: Christoph Schulz <develop@kristov.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 19 Nov 2018 19:36:16 +0000 (20:36 +0100)]
scripts/trylink: be more clever when deciding that "lib elimination" has finished:
Before:
Trying libraries: crypt m resolv
Library crypt is not needed, excluding it
Library m is needed, can't exclude it (yet)
Library resolv is needed, can't exclude it (yet)
Library m is needed, can't exclude it (yet)
Library resolv is needed, can't exclude it (yet)
Final link with: m resolv
After:
Trying libraries: crypt m resolv
Library crypt is not needed, excluding it
Library m is needed, can't exclude it (yet)
Library resolv is needed, can't exclude it (yet)
Final link with: m resolv
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 18 Nov 2018 18:50:24 +0000 (19:50 +0100)]
tls: add comment, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Sun, 18 Nov 2018 07:40:40 +0000 (07:40 +0000)]
Ensure build works when KBUILD_OUTPUT is set, closes 11511
The build process for embedded scripts didn't have consistent
support for saving output to a different directory.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Sun, 18 Nov 2018 18:12:26 +0000 (19:12 +0100)]
busybox: add '--show SCRIPT' option to display scripts
Add an option to allow the content of embedded scripts to be
displayed. This includes applet scripts, custom scripts and the
.profile script.
function old new delta
busybox_main 624 701 +77
find_script_by_name - 24 +24
scripted_main 41 35 -6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 101/-6) Total: 95 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Sat, 17 Nov 2018 17:48:14 +0000 (17:48 +0000)]
Treat custom and applet scripts as applets
BusyBox has support for embedded shell scripts. Two types can be
distinguished: custom scripts and scripts implementing applets.
Custom scripts should be placed in the 'embed' directory at build
time. They are given a default applet configuration and appear
as applets to the user but no further configuration is possible.
Applet scripts are integrated with the BusyBox build system and
are intended to be used to ship standard applets that just happen
to be implemented as scripts. They can be configured at build time
and appear just like native applets.
Such scripts should be placed in the 'applets_sh' directory. A stub
C program should be written to provide the usual applet configuration
details and placed in a suitable subsystem directory. It may be
helpful to have a configuration option to enable any dependencies the
script requires: see the 'nologin' applet for an example.
function old new delta
scripted_main - 41 +41
applet_names 2773 2781 +8
applet_main 1600 1604 +4
i2cdetect_main 672 674 +2
applet_suid 100 101 +1
applet_install_loc 200 201 +1
applet_flags 100 101 +1
packed_usage 33180 33179 -1
tryexec 159 152 -7
evalcommand 1661 1653 -8
script_names 9 - -9
packed_scripts 123 114 -9
complete_cmd_dir_file 826 811 -15
shellexec 271 254 -17
find_command 1007 990 -17
busybox_main 642 624 -18
run_applet_and_exit 100 78 -22
find_script_by_name 51 - -51
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 6/9 up/down: 58/-174) Total: -116 bytes
text data bss dec hex filename
950034 477 7296 957807 e9d6f busybox_old
949918 477 7296 957691 e9cfb busybox_unstripped
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Mon, 12 Nov 2018 21:10:54 +0000 (21:10 +0000)]
ash: ensure variables are fully initialised when unset
When a variable is unset by calling setvar(name, NULL, 0) the code
to initialise the new, empty variable fails to initialise the last
character of the string.
Attempts to read the contents of the unset variable will result
in the uninitialised character at the end of the string being
accessed.
For example, running BusyBox under Valgrind and unsetting PATH:
$ valgrind ./busybox_unstripped sh
==21249== Memcheck, a memory error detector
==21249== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==21249== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==21249== Command: ./busybox_unstripped sh
==21249==
/data2/git/build_fix_8721 $ unset PATH
/data2/git/build_fix_8721 $ 0
==21249== Conditional jump or move depends on uninitialised value(s)
==21249== at 0x451371: path_advance (ash.c:2555)
==21249== by 0x456E22: find_command (ash.c:13407)
==21249== by 0x458425: evalcommand (ash.c:10139)
==21249== by 0x454CBC: evaltree (ash.c:9131)
==21249== by 0x456C80: cmdloop (ash.c:13164)
Closes https://bugs.busybox.net/show_bug.cgi?id=8721
v2: On the dash mailing list Harald van Dijk was kind enough to point
out a flaw in my reasoning and provide an alternative patch. Sadly
his patch adds 2 bytes of bloat. Using xzalloc to zero the whole
string gives a bloat of -3 bytes.
function old new delta
setvar 172 169 -3
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Fri, 9 Nov 2018 12:00:39 +0000 (12:00 +0000)]
hush: correct description for HUSH_TICK config option
The HUSH_TICK configuration option enables command substitution,
not process substitution.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 14 Nov 2018 10:35:36 +0000 (11:35 +0100)]
tls: code shrink
function old new delta
spawn_ssl_client 219 218 -1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 13 Nov 2018 11:00:19 +0000 (12:00 +0100)]
wget: print "TLS certificate validation not implemented" only once on redirects
function old new delta
spawn_ssl_client 209 219 +10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 13 Nov 2018 10:58:53 +0000 (11:58 +0100)]
tls: code shrink
function old new delta
tls_get_zeroed_outbuf - 28 +28
static.empty_client_cert 7 - -7
tls_handshake 1930 1890 -40
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 28/-47) Total: -19 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 13 Nov 2018 10:44:32 +0000 (11:44 +0100)]
tls: tidy up recently added ECDSA code
function old new delta
tls_handshake 1935 1930 -5
static.OID_ECDSA_KEY_ALG 21 11 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-15) Total: -15 bytes
text data bss dec hex filename
950036 477 7296 957809 e9d71 busybox_old
950048 477 7296 957821 e9d7d busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 13 Nov 2018 02:15:15 +0000 (03:15 +0100)]
tls: code shrink
function old new delta
static.f25519_one 32 - -32
curve25519 835 802 -33
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-65) Total: -65 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 13 Nov 2018 01:16:24 +0000 (02:16 +0100)]
tls: add support for ECDHE-ECDSA-AES-128-CBC-SHA and x25519 curve
function old new delta
curve25519 - 835 +835
tls_handshake 1619 1935 +316
xc_diffadd - 230 +230
fe_mul__distinct - 149 +149
lm_sub - 103 +103
lm_add - 82 +82
fe_mul_c - 74 +74
fe_select - 45 +45
static.f25519_one - 32 +32
static.basepoint9 - 32 +32
static.OID_ECDSA_KEY_ALG - 21 +21
static.OID_RSA_KEY_ALG - 13 +13
static.supported_groups - 8 +8
static.empty_client_cert - 7 +7
der_binary_to_pstm 40 42 +2
static.expected 13 - -13
------------------------------------------------------------------------------
(add/remove: 14/1 grow/shrink: 2/0 up/down: 1949/-13) Total: 1936 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Mon, 5 Nov 2018 13:13:08 +0000 (13:13 +0000)]
ash: minor fixes
Ensure that login_sh is initialised in procargs even when running
an embedded script.
The argc argument to ash_main isn't unused when embedded scripts
are present.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 4 Nov 2018 23:18:18 +0000 (00:18 +0100)]
tls: code shrink
function old new delta
tls_handshake 1643 1619 -24
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 4 Nov 2018 20:25:41 +0000 (21:25 +0100)]
tls: reorder a few more cipher ids
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 4 Nov 2018 20:18:29 +0000 (21:18 +0100)]
tls: move TLS_AES_128_GCM_SHA256 definition up
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 4 Nov 2018 19:53:54 +0000 (20:53 +0100)]
tls: add more cipher ids, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 3 Nov 2018 22:34:03 +0000 (23:34 +0100)]
udhcpc: code shrink
function old new delta
perform_release 112 172 +60
send_release 81 - -81
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/0 up/down: 60/-81) Total: -21 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 2 Nov 2018 13:20:54 +0000 (14:20 +0100)]
remove FAST_FUNC on a static function
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 2 Nov 2018 13:18:36 +0000 (14:18 +0100)]
scripts/embedded_scripts: do not add superfluous NUL to script_names[]
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Fri, 2 Nov 2018 13:14:31 +0000 (14:14 +0100)]
libarchive: add a function to unpack embedded data
Similar code to unpack embedded data is used to decompress usage
messages, embedded scripts and the config file (in the non-default
bbconfig applet).
Moving this code to a common function reduces the size of the default
build and hides more of the internals of libarchive.
function old new delta
unpack_bz2_data - 135 +135
bb_show_usage 137 157 +20
get_script_content 32 47 +15
unpack_scripts 119 - -119
unpack_usage_messages 124 - -124
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 2/0 up/down: 170/-243) Total: -73 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 1 Nov 2018 13:53:04 +0000 (14:53 +0100)]
svlogd: fix pattern matching when using timestamps
function old new delta
svlogd_main 1488 1496 +8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 1 Nov 2018 12:58:16 +0000 (13:58 +0100)]
busybox: show embedded scripts in applet list
function old new delta
busybox_main 624 642 +18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Thu, 1 Nov 2018 11:51:10 +0000 (12:51 +0100)]
lineedit: autocompletion for embedded scripts
function old new delta
complete_cmd_dir_file 811 826 +15
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 1 Nov 2018 11:50:33 +0000 (12:50 +0100)]
ash: fix thinko in last commit
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Thu, 1 Nov 2018 10:45:03 +0000 (11:45 +0100)]
ash: in tryexec(), ensure we don't try to run embedded scripts as applets
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Thu, 1 Nov 2018 10:04:47 +0000 (11:04 +0100)]
ash: recognize embedded scripts in SH_STANDALONE mode
function old new delta
find_script_by_name - 51 +51
shellexec 254 271 +17
find_command 990 1007 +17
evalcommand 1653 1661 +8
doCommands 2233 2222 -11
run_applet_and_exit 128 100 -28
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 6/4 up/down: 104/-52) Total: 52 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 1 Nov 2018 09:28:04 +0000 (10:28 +0100)]
claenups for previous commit
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 1 Nov 2018 08:53:25 +0000 (09:53 +0100)]
ash: allow shell scripts to be embedded in the binary
To assist in the deployment of shell scripts it may be convenient
to embed them in the BusyBox binary.
'Embed scripts in the binary' takes any files in the directory
'embed', concatenates them with null separators, compresses them
and embeds them in the binary.
When scripts are embedded in the binary, scripts can be run as
'busybox SCRIPT [ARGS]' or by usual (sym)link mechanism.
embed/nologin is provided as an example.
function old new delta
packed_scripts - 123 +123
unpack_scripts - 87 +87
ash_main 1103 1171 +68
run_applet_and_exit 78 128 +50
get_script_content - 32 +32
script_names - 10 +10
expmeta 663 659 -4
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 2/1 up/down: 370/-4) Total: 366 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Ron Yorston [Tue, 26 Apr 2016 14:23:38 +0000 (15:23 +0100)]
vi: remove duplicated code
At worst show_status_line() might be called needlessly when the
user presses ^L/^R, but I don't think we'll get many complaints
about that.
function old new delta
do_cmd 4592 4558 -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-34) Total: -34 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Rasmus Villemoes [Wed, 12 Sep 2018 14:06:37 +0000 (16:06 +0200)]
libbb/u_signal_names.c: don't check errno after bb_strtou
Since we're comparing the return value to a smallish integer anyway, we
might as well use that bb_strtou() returns UINT_MAX for malformed
input. Referencing errno is kinda bloaty on glibc.
While NSIG is not in POSIX, we do already rely on it being defined,
compile-time const and smallish, since arrays in struct globals_misc are
defined in terms of it.
function old new delta
get_signum 312 286 -26
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Rasmus Villemoes [Wed, 12 Sep 2018 14:06:36 +0000 (16:06 +0200)]
libbb: optionally honour libc provided SIGRTMIN/SIGRTMAX in get_signum()
When an application documents that it responds such and such to
SIGRTMIN+n, that almost always means with respect to the libc-provided
SIGRTMIN. Hence I disagree with the "more correct" in commit
7b276fc17594. In any case, this is rather unfortunate:
36
34
(the first shell is bash). We probably can't change default behaviour
after 7 years, but at least we can provide a config option.
We avoid a little code generation (repeated calls to
__libc_current_sigrtmin) by stashing SIGRTMIN/SIGRTMAX in local
variables, but it does cost ~50 bytes. The next patch serves as penance
for that.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 30 Oct 2018 22:24:18 +0000 (23:24 +0100)]
printf: fix printf "%u\n" +
18446744073709551614
function old new delta
conv_strtoll 19 32 +13
conv_strtoull 49 61 +12
bb_strtoll 89 84 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 25/-5) Total: 20 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 30 Oct 2018 22:07:26 +0000 (23:07 +0100)]
ntpd: default to FEATURE_NTP_AUTH=y
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 30 Oct 2018 16:04:52 +0000 (17:04 +0100)]
dd: do not have 'ocount' variable if ibs/obs support is not enabled
function old new delta
packed_usage 32964 32961 -3
dd_main 1033 1021 -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-15) Total: -15 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Rostislav Skudnov [Mon, 15 Oct 2018 10:26:15 +0000 (10:26 +0000)]
dd: add 'oflag=seek_bytes'
Allow specifying position in the output file in bytes instead of
obs-sized blocks, improve compatibility with GNU dd.
function old new delta
dd_main 1632 1693 +61
packed_usage 33130 33150 +20
static.oflag_words - 12 +12
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 93/0) Total: 93 bytes
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 30 Oct 2018 13:40:17 +0000 (14:40 +0100)]
xargs: fix exit code if command exits nonzero, closes 11381
No code size change on x86.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Guillermo Rodriguez [Tue, 30 Oct 2018 12:49:51 +0000 (13:49 +0100)]
free: add 'available' memory if provided by the kernel
Show estimated available memory if this is provided by the
kernel. See [1] for the full story.
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=
34e431b0ae398fc54ea69ff85ec700722c9da773
function old new delta
free_main 537 633 +96
parse_cached_kb 85 - -85
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/0 up/down: 96/-85) Total: 11 bytes
Signed-off-by: Guillermo Rodriguez <guille.rodriguez@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Jiří Prchal [Thu, 4 Oct 2018 07:02:27 +0000 (09:02 +0200)]
examples/udhcp/simple.script: add possibility to use modern "ip"
Script uses "ifconfig" only, not up-to-date so much.
This patch adds "ip" in condition if exists.
Signed-off-by: Jiří Prchal <jiri.prchal@aksignal.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 30 Oct 2018 10:56:18 +0000 (11:56 +0100)]
udhcpc: ensure at least one unicast renew attempt
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Brandon P. Enochs [Sat, 27 Oct 2018 16:55:59 +0000 (18:55 +0200)]
ntpd: add support for MD5/SHA1 message authentication
Add support for MD5 message authentication as described in RFC 5905.
This patch also supports SHA1 authentication.
The key file format is the same file format as used by ntpd.
The configuration file format follows standard Unix conventions
(# comments) with lines consist of the following fields separated by whitespace:
<key identifier, [1,65535]> <SHA1|MD5> <an ASCII string of up to 20 characters|an octet string [a-zA-F0-9] of up to 40 characters>.
https://www.ietf.org/rfc/rfc5905.txt
function old new delta
ntp_init 473 987 +514
hash - 125 +125
recv_and_process_peer_pkt 889 961 +72
packed_usage 33066 33130 +64
ntpd_main 1226 1277 +51
find_key_entry - 29 +29
add_peers 195 207 +12
recv_and_process_client_pkt 509 514 +5
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 6/0 up/down: 872/0) Total: 872 bytes
Signed-off-by: Brandon P. Enochs <enochs.brandon@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 24 Oct 2018 13:51:38 +0000 (15:51 +0200)]
nbd-client: support newstyle protocol, -b, -d, -p, -N
Recognize the "newstyle" protocol and switch to it automatically.
Add options for setting blocksize (-b) and for disconnecting
a nbd device (-d).
function old new delta
nbdclient_main 492 1179 +687
static.long_options - 80 +80
print_direc 438 457 +19
brctl_main 1169 1183 +14
bb_strtoll 84 89 +5
packed_usage 33082 33066 -16
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 805/-16) Total: 789 bytes
Signed-off-by: Elvira Khabirova <lineprinter@altlinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Bernhard Reutner-Fischer [Fri, 19 Oct 2018 13:25:41 +0000 (15:25 +0200)]
printf: fix printing +-prefixed numbers
Thanks to Cristian Ionescu-Idbohrn for noticing.
Also fix "%d" ' 42' to skip leading whitespace.
function old new delta
print_direc 435 454 +19
bb_strtoll 99 103 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0) Total: 23 bytes
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Bernhard Reutner-Fischer [Fri, 2 Mar 2018 16:39:36 +0000 (17:39 +0100)]
brctl: use a single buffer for brname and ifname
function old new delta
brctl_main 1681 1675 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-6) Total: -6 bytes
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Denys Vlasenko [Sun, 30 Sep 2018 14:56:56 +0000 (16:56 +0200)]
unzip: use printable_string() for printing filenames
function old new delta
unzip_main 2726 2792 +66
printable_string2 - 57 +57
identify 4329 4336 +7
expmeta 659 663 +4
add_interface 99 103 +4
beep_main 286 289 +3
changepath 192 194 +2
builtin_type 115 117 +2
devmem_main 469 470 +1
input_tab 1076 1074 -2
create_J 1821 1819 -2
poplocalvars 314 311 -3
doCommands 2222 2214 -8
do_load 918 902 -16
printable_string 57 9 -48
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 8/6 up/down: 146/-79) Total: 67 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Brandon Maier [Fri, 21 Sep 2018 17:54:05 +0000 (12:54 -0500)]
ifupdown: support "source-directory" stanza
Support the "source-directory" stanza from ifupdown[1]. source-directory
will include all files in the named directory. Similar to the Busybox
version of the "source" stanza, this version of source-directory does
not currently support shell wildcards.
We only check that the stanza starts with "source-dir" as ifupdown does[2].
[1] https://manpages.debian.org/stretch/ifupdown/interfaces.5.en.html#INCLUDING_OTHER_FILES
[2] https://salsa.debian.org/debian/ifupdown/blob/0.8.33/config.c#L498
function old new delta
read_interfaces 1150 1241 +91
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 28 Sep 2018 13:13:04 +0000 (15:13 +0200)]
move storage helpers to libbb.h
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 28 Sep 2018 12:44:09 +0000 (14:44 +0200)]
udhcpc: give SIGUSR1-induced renew one chance of unicast renew
The caps were inconsistent: timeout to renew was capped at 20 seconds,
and any renews with timeout <= 60 seconds were forced to broadcast.
function old new delta
udhcpc_main 2683 2680 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Martin Kaiser [Mon, 24 Sep 2018 19:00:47 +0000 (21:00 +0200)]
.gitignore: add ctags output files
Exuberant ctags creates an output file called "tags" by default or
"TAGS" when it's run in emacs mode. Add those two files to .gitignore so
they won't be removed by git clean -df.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Martin Kaiser [Mon, 24 Sep 2018 19:01:51 +0000 (21:01 +0200)]
mdev.txt: explain the meaning of a leading "-"
If a line in mdev.conf starts with "-", parsing will continue even if
a match is found in that line.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
projects / oweals / busybox.git / log