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2025-04-21cpio: error out if the file to be achived is >=4GBbusyboxDenys Vlasenko1-0/+6
function old new delta .rodata 105715 105751 +36 cpio_o 1145 1167 +22 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 58/0) Total: 58 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-20rpm2cpio: extract cpio even if compression is not knownDenys Vlasenko1-1/+6
This is more useful than failing outright. function old new delta rpm2cpio_main 110 144 +34 .rodata 105681 105715 +34 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 68/0) Total: 68 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-20libbb/archival: make setup_unzip_on_fd() return bytes read if not compressedDenys Vlasenko7-23/+25
setup_unzip_on_fd() does not return the transformer structure, so the user does not know how much to seek back (or alternatively what the signature was) when compressor signature is not detected. Currently not needed (the only user is tar which dies anyway). However, rpm2cpio may need this if we extend it to extract the internal .cpio even if cpio's compressions algo is not known. function old new delta setup_unzip_on_fd 53 59 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-17runit: fix setuidgid help textJ. Neuschäfer1-1/+2
Signed-off-by: J. Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-16archival: disallow path traversals (CVE-2023-39810)Denys Vlasenko5-2/+48
Create new configure option for archival/libarchive based extractions to disallow path traversals. As this is a paranoid option and might introduce backward incompatibility, default it to no. Fixes: CVE-2023-39810 Based on the patch by Peter Kaestle <peter.kaestle@nokia.com> function old new delta data_extract_all 921 945 +24 strip_unsafe_prefix 101 102 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 25/0) Total: 25 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-10Update PDCursesRon Yorston27-360/+420
2025-04-08syslogd: Fix 'OPT_locallog' check regression in 'syslogd_main'Grant Erickson1-1/+1
In the recent refactoring of 'syslogd_main', a regression was introduced in handling the manual bitwise OR of 'OPT_locallog' as follows: if (ENABLE_FEATURE_REMOTE_LOG && !(opts & OPT_remotelog)) // -R option_mask32 |= OPT_locallog; 'opts' represents the locally-scoped output of 'getopt32' and 'option_mask32' represents the globally-scoped state of the same. Consequently, the above performs a bitwise OR to include 'OPT_locallog' of the globally-scoped option state, which 'opts' will not reflect locally. Manipulating the global, rather than local, state is correct as 'timestamp_and_log_internal' will later need to check 'OPT_locallog'. However, when the aforementioned refactor occurred, the following regressing change was made: - if (!ENABLE_FEATURE_REMOTE_LOG || (option_mask32 & OPT_locallog)) { + if (!ENABLE_FEATURE_REMOTE_LOG || (opts & OPT_locallog)) { breaking the spatially- and temporally-removed check in 'timestamp_and_log_internal'. Fixes: 02378ce20c6d2 ("syslogd: decrease stack usage, ~50 bytes") function old new delta syslogd_init 1140 1137 -3 Signed-off-by: Grant Erickson <gerickson@nuovations.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-07udhcpd: send DHCPOFFERs as unicast (unless clients specifically asks for bcast)Denys Vlasenko1-16/+42
RFC 2131 says we should do that. Evidently, since for so many years no one complained, sending them broadcast works too, but finally we've got someone who wants RFC-compliand behavior. function old new delta send_packet 141 179 +38 .rodata 105680 105681 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 39/0) Total: 39 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-06Makefile: fix passing of EXTRA_LDLIBSDenys Vlasenko1-1/+5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-04-06init: improve log message when a process exits: show exit codeSébastien Parisot1-3/+15
function old new delta .rodata 105649 105680 +31 init_main 776 804 +28 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 59/0) Total: 59 bytes Signed-off-by: Sébastien Parisot <sparisot@free-mobile.fr> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-03-17win32: fake directories in readdir(2)Ron Yorston1-5/+23
The emulation of readdir(2) didn't include the '.' and '..' directories in the root of a logical drive. This resulted in the 'ls' applet (and others) not matching the expected Unix behaviour. Alter the emulation of readdir(2) to include fake '.' and '..' directories if necessary. Adds 88-112 bytes. (GitHub issue #487)
2025-02-09udhcpc6: fix copy-paste error in "generate a consistent IAID" commitDenys Vlasenko1-1/+1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-02-09udhcpc6: generate a consistent IAIDZhou Siqi1-2/+27
Currently, udhcpc6 does not meet the requirements for Identity Association in RFC 3315. This is a specific explanation in RFC 3315 protocol: https://datatracker.ietf.org/doc/html/rfc3315#section-10 "The IAID uniquely identifies the IA and must be chosen to be unique among the IAIDs on the client. The IAID is chosen by the client. For any given use of an IA by the client, the IAID for that IA MUST be consistent across restarts of the DHCP client." This patch makes the client generate a consistent IAID based on the MAC address. function old new delta send_d6_discover 285 270 -15 Signed-off-by: Zhou Siqi <zhousiqi5@huawei.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-02-09udhcpc6: move block comment, no code changesDenys Vlasenko1-61/+61
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-02-09udhcpc6: improvementsLaurent Bercot2-32/+72
Several small improvements to udhcpc6. - Remove usage text for the nonexistent -B option. - Fix a segfault when renewing an IA_PD lease without IA_NA (which means the client hasn't been assigned an ip, so we cannot locally bind to it). - Fix NAK management: check the option length, and print the status code and status message - Add a -m option to always send renew requests as multicast. These last two changes are useful to deal with hopelessly broken DHCPv6 servers such as the one from the Orange Livebox (one of the main French ISPs) which I'm currently having the displeasure to have to talk to, hence the patch. function old new delta static.send_d6_renew - 126 +126 .rodata 105598 105649 +51 udhcpc6_main 2607 2650 +43 packed_usage 34933 34953 +20 d6_send_kernel_packet_from_client_data_ifindex 266 282 +16 send_d6_renew 174 - -174 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 4/0 up/down: 256/-174) Total: 82 bytes Signed-off-by: Laurent Bercot <ska-dietlibc@skarnet.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2025-02-08win32: enhanced support for SIGPIPEFRP-5579-g5749feb35Ron Yorston1-4/+0
Commit 68ddd4ec3c (win32: emulate SIGPIPE) allowed broken pipes to be detected so that processes could either return EPIPE or terminate. Later, commit 1b2ee3667 (win32: add fake HUP and QUIT signals) added support for two additional fake signals, thus allowing the 'kill' applet to refer to them by name and the shell to define (though not execute) traps for them. Add PIPE to the list of signals known to 'kill' and the shell, though still without support for calling the trap function. (GitHub issue #482)
2025-02-03win32: retry when command needs elevated privilegesRon Yorston4-12/+71
Some installer programs have an entry in their manifest to indicate that they need elevated privileges. The shell in busybox-w32 was unable to run such programs. When a program fails to run with ERROR_ELEVATION_REQUIRED, try again using ShellExecuteEx() with the 'runas' verb to give it elevated privileges. Adds 272-288 bytes. (GitHub issue #481)
2025-01-22make: fix detection of target rule with inline commandRon Yorston1-2/+16
Commit f9d10b2b6 (make: fix detection of target rules (take 2)) added code to handle the case where a target rule had an inline command with a ';' separator in a macro. This required all macros on the line to be expanded, including those in the inline command. The ';' should first be searched for in the original line (without any macro expansion) and only if that fails should macros be expanded. This matches the behaviour of GNU and Unix V7 make. BSD and Schily make don't handle the case where the ';' is in a macro. (pdpmake GitHub issue 73)
2025-01-21make: fix single-suffix inference rule regressionRon Yorston2-3/+24
Commit 85bbce87d (make: support GNU/BSD suffixes and inference rules) added code to handle inference rules with arbitrary suffixes. Unfortunately it failed to check for a single-suffix rule in the case where no known suffix was found. Add the necessary code and a test which would have caught the problem. Adds 48 bytes. (pdpmake GitHub issue 72)
2025-01-16make: phony targets and double colon rulesRon Yorston1-7/+12
Commit 770bad1fe (make: disallow inference rules for phony targets) added the GNU/BSD make feature that inference rules aren't used for phony targets. Normally a double-colon rule without associated commands causes an inference rule search. If the target of the double-colon rule was phony no search was carried out and the rule failed. As a result of this perl failed to build (on Linux, I didn't try on Windows). When a double-colon rule has no commands and a phony target the prerequisites should be built and the rule should succeed. Adds 32 bytes. (pdpmake GitHub issue #70)
2025-01-16make: minor tweaksRon Yorston1-32/+37
Move the code to remove the suffix from a target into a separate function. There's no need to test for non-NULL 'makefile' in newcmd(). Cosmetic changes. Saves 0-16 bytes.
2025-01-14make: support GNU/BSD suffixes and inference rulesRon Yorston3-71/+224
The specification of inference rules in POSIX implies that only suffixes starting with a period and containing no other periods are to be considered. In contrast, both GNU and BSD make allow suffixes to contain an arbitrary number of periods, or none at all. Allow this as an extension. Adds 640-816 bytes. (pdpmake GitHub issue 70)
2024-12-31win32: fix compilation with FEATURE_SH_NOFORK disabledRon Yorston2-3/+5
Compiling with FEATURE_SH_NOFORK disabled resulted in an error and a warning. Fixing these doesn't change the default build.
2024-12-30xargs: allow for quotes in commands on WindowsRon Yorston1-2/+103
When xargs limited the length of the command lines it generated it didn't allow for the quoting Windows spawn() introduces. Properly account for any additional characters required when a command is spawned on Windows. If the command is a NOFORK applet this isn't necessary. Adds 384-464 bytes.
2024-12-30win32: code shrink quote_arg()Ron Yorston1-24/+20
Alter quote_arg() to perform a single pass over the string in the case where no change is required. Based on a proposal by @avih in GitHub PR #317. Saves 16 bytes.
2024-12-29ash: strip trailing slash from directory if necessaryRon Yorston1-0/+5
The previous commit removed trailing dots and spaces from the last component of a pathname when changing directory. If the result has a trailing slash remove that too. But not if it's a drive root, to avoid 'cd C:/' showing a current directory of 'C:'. Adds 48 bytes. (GitHub issue #478)
2024-12-21cut: code shrinkDenys Vlasenko1-6/+5
move "linenum" manipulations to the one place where it is used. function old new delta cut_main 1373 1360 -13 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-21cut: code shrinkDenys Vlasenko1-9/+13
This change eliminates one temporary: - if (dcount++ < cut_list[cl_pos].startpos) + dcount++; + if (dcount <= cut_list[cl_pos].startpos) function old new delta cut_main 1402 1373 -29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-20cut: fix up -D/-s behavior with -FDenys Vlasenko2-5/+36
function old new delta cut_main 1388 1402 +14 packed_usage 34934 34933 -1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 14/-1) Total: 13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-20cut: remove unnecessary initialization of regmatch_tDenys Vlasenko1-1/+1
function old new delta cut_main 1404 1388 -16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-16cut: shorten error messages on bad syntax even moreDenys Vlasenko1-10/+6
$ cut -s -b3 cut: -s requires -f or -F $ cut -d@ -b3 cut: -d DELIM requires -f or -F function old new delta static.requires_f - 19 +19 static._op_on_field 32 - -32 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/0 up/down: 19/-32) Total: -13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-16cut: shorten error messages on bad syntaxDenys Vlasenko1-3/+3
We don't need to mimic GNU cut error messages. $ cut -d@ -b3 cut: -d DELIM makes sense only with -f or -F $ cut -s -b3 cut: -s makes sense only with -f or -F function old new delta static._op_on_field 31 32 +1 .rodata 105659 105598 -61 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 1/-61) Total: -60 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-16cut: terminate cut_list[] so that we don't need "size of the array" variableDenys Vlasenko1-20/+25
function old new delta cut_main 1410 1404 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-16cut: we can't get empty cut_list[], remove the check for thatDenys Vlasenko1-8/+11
function old new delta .rodata 105685 105659 -26 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-15cut: disallow -f '' and -f '-'Denys Vlasenko1-15/+19
function old new delta cut_main 1391 1410 +19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-14cut: fix -F n-m to match toyboxDenys Vlasenko2-3/+28
function old new delta cut_main 1339 1391 +52 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: simplify getopt32 codeDenys Vlasenko1-11/+8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: "it's legal to pass an empty list" seems to be untrueDenys Vlasenko1-46/+44
function old new delta cut_main 1344 1339 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: whitespace fixesDenys Vlasenko1-3/+3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: tweak commentsDenys Vlasenko1-3/+2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: fix handling of -d ''Denys Vlasenko2-1/+13
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-13cut: prevent infinite loop if -F REGEX matches empty delimiterDenys Vlasenko1-1/+3
function old new delta cut_main 1339 1348 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-11cut: tweak --helpDenys Vlasenko2-11/+10
function old new delta packed_usage 34901 34934 +33 cut_main 1353 1339 -14 .rodata 105724 105685 -39 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 33/-53) Total: -20 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: fix -d$'\n' --output-delimiter=@@ behaviorDenys Vlasenko2-7/+53
function old new delta cut_main 1261 1353 +92 packed_usage 34925 34901 -24 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 92/-24) Total: 68 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: implement --output-delimiterDenys Vlasenko2-10/+49
function old new delta cut_main 1204 1261 +57 static.cut_longopts - 20 +20 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/0 up/down: 77/0) Total: 77 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: with -F disabled in .config, don't show it in --helpDenys Vlasenko1-5/+13
function old new delta packed_usage 34897 34849 -48 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: comment out code which seems to be not neededDenys Vlasenko1-7/+7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: fix "echo 1.2 | cut -d. -f1,3" (print "1", not "1.")Denys Vlasenko2-7/+27
function old new delta cut_main 1228 1201 -27 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: with -F, do not regcomp() pattern for every fileDenys Vlasenko1-18/+24
function old new delta cut_main 1218 1228 +10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2024-12-10cut: rename "cut_lists" to "cut_list"Denys Vlasenko1-19/+20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>