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| * decrease padding: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nillyDenys Vlasenko2020-11-301-2/+2
| | | | | | | | | | | | | | | | text data bss dec hex filename 1021236 559 5052 1026847 fab1f busybox_old 1021120 559 5052 1026731 faaab busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nillyDenys Vlasenko2020-11-303-3/+3
| | | | | | | | | | | | | | | | text data bss dec hex filename 1021988 559 5052 1027599 fae0f busybox_old 1021236 559 5052 1026847 fab1f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * archival: avoid std namespace for local includesJoachim Nilsson2020-11-163-3/+3
| | | | | | | | | | | | | | | | Avoid using same include file naming pattern as available in GLIBC. Renamed to match grp_.h et al. Signed-off-by: Joachim Nilsson <troglobit@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | Merge branch 'busybox' into mergeRon Yorston2020-11-122-6/+8
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| * tar: fix fallout of last_char_is(NULL) no longer being allowedDenys Vlasenko2020-10-021-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libbb: shrink recursive_action() by reducing memory pressureDenys Vlasenko2020-10-011-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | function old new delta recursive_action1 - 316 +316 file_action_grep 161 164 +3 add_to_prg_cache_if_socket 202 205 +3 depmod_main 509 511 +2 writeFileToTarball 488 489 +1 parse_module 281 282 +1 fileAction 207 208 +1 act 189 190 +1 add_to_dirlist 65 64 -1 writeTarFile 196 194 -2 uuidcache_init 47 45 -2 uuidcache_check_device 109 107 -2 true_action 8 6 -2 run_parts_main 310 308 -2 netstat_main 534 532 -2 lsusb_main 29 27 -2 lspci_main 45 43 -2 initial_scan 138 136 -2 grep_main 845 843 -2 find_main 482 480 -2 config_file_action 437 435 -2 chmod_main 142 140 -2 dirAction 14 10 -4 diff_main 1544 1540 -4 chown_main 154 148 -6 skip_dir 136 129 -7 dir_act 191 184 -7 recursive_action 453 69 -384 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 7/20 up/down: 328/-439) Total: -111 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gcc-9.x warning fixesDenys Vlasenko2020-10-011-1/+2
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | win32: move code to fork (de)compressor to a functionRon Yorston2020-08-052-38/+6
| | | | | | | | | | | | | | | | Use a new common function, mingw_fork_compressor(), to implement fork_transformer() in open_transformer.c and vfork_compressor() in tar.c. Saves 160 bytes.
* | Merge branch 'busybox' into mergeRon Yorston2020-07-093-1/+25
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| * dpkg: prevent important directories from being removedNorbert Lange2020-06-291-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | busybox will remove directory symlinks, which is at odds with common layouts that have some of bin/lib/lib32/lib64 symlinked. this adds a exludelist for critcal and often symlinked directories. Fixes: Bug 12551 function old new delta remove_file_array 139 231 +92 Signed-off-by: Norbert Lange <nolange79@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip -d with zcat enabled but gunzip disabled was misbehavingDenys Vlasenko2020-06-251-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * randomconfig fixesDenys Vlasenko2020-06-241-0/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | Merge branch 'busybox' into mergeFRP-3466-g53c09d0e1Ron Yorston2020-05-291-1/+7
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| * unzip: -d should create the dirLauri Kasanen2020-04-291-1/+7
| | | | | | | | | | | | | | The official Info-Zip unzip creates the dir if it doesn't exist. Signed-off-by: Lauri Kasanen <cand@gmx.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | Merge branch 'busybox' into mergeRon Yorston2020-01-086-115/+152
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| * unxz: show -t in --helpDenys Vlasenko2019-11-081-0/+2
| | | | | | | | | | | | | | function old new delta packed_usage 33236 33247 +11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gunzip: fix incorrect decoding of "fixed" inflate blocksDenys Vlasenko2019-10-261-10/+20
| | | | | | | | | | | | | | | | | | | | function old new delta huft_build 1008 1022 +14 inflate_block 1253 1256 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 17/0) Total: 17 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * tar: fix fallout of: change -a from meaning "lzma" to mean "autodetect by ↵Denys Vlasenko2019-10-251-1/+1
| | | | | | | | | | | | extension" Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gunzip: code shrink by using int-, not short-sized struct memberDenys Vlasenko2019-10-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | function old new delta inflate_block 1254 1253 -1 inflate_codes 629 621 -8 huft_build 1054 1008 -46 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-55) Total: -55 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: code shrinkDenys Vlasenko2019-10-191-29/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | huft_build() still has way too many params function old new delta lit - 94 +94 dist - 94 +94 huft_build 1058 1054 -4 inflate_block 1281 1254 -27 cpdext 30 - -30 cplext 31 - -31 cpdist 60 - -60 cplens 62 - -62 ------------------------------------------------------------------------------ (add/remove: 2/4 grow/shrink: 0/2 up/down: 188/-214) Total: -26 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: code shrinkDenys Vlasenko2019-10-191-27/+26
| | | | | | | | | | | | | | | | | | | | | | | | huft_build() has way too many params function old new delta inflate_block 1293 1281 -12 huft_build 1085 1058 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-39) Total: -39 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * dpkg-deb: work around bogus error message when working with XZ compressed ↵Denys Vlasenko2019-10-112-2/+20
| | | | | | | | | | | | | | | | | | | | packages function old new delta unpack_xz_stream 2309 2317 +8 bb_full_fd_action 464 472 +8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: code shrinkDenys Vlasenko2019-09-061-44/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Converted a few 16-bit variables and small arrays to 32-bit. Stopped pulling desc->FOO members into temporary local variables in gen_bitlen(): on register-starved arches, this is a loss, temporaries go into stack slots. Sprinkled a few "const" on pointer arguments. function old new delta pack_gzip 742 745 +3 gen_codes 101 97 -4 build_tree 886 833 -53 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 3/-57) Total: -54 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: code shrinkDenys Vlasenko2019-09-051-9/+9
| | | | | | | | | | | | | | function old new delta gzip_main 267 264 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: set default compression level to 6 when CONFIG_FEATURE_GZIP_LEVELS=nDaniel Edgecumbe2019-09-051-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this change, GNU gzip -n and BusyBox gzip now produce identical output assuming that CONFIG_GZIP_FAST=2. >> Excuse me, but I wonder one thing: Why should we follow >> strictly with gzip on the no-options default behavior? > First, the default 6 compression level is a de-facto standard. BSD gzip > and Apple gzip (on macOS) use this default as well. So there is a > reasonable expectation that different gzip implementations act the same. > For instance, if the default for busybox gzip becomes 9, then someone > writing a script using busybox gzip could reasonably expect that the > compression level will still be 9 when the same script is run on another > system. That would be wrong. Implementations should not deviate from > de-facto standards without a strong reason. > > Second, the inherent reason for this default has not gone away. While > processor speeds have exploded since the default was set, so has the > typical size of compressed files. Multiple gigabytes are nothing unusual > these days. And gzip is often used for compression on the fly, precisely > because it offers a good compromise between speed and compression ratio. > So I believe 6 continues to be a reasonable default. function old new delta deflate 939 927 -12 Signed-off-by: Daniel Edgecumbe <git@esotericnonsense.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: set compression flags correctly as per standardDaniel Edgecumbe2019-09-051-8/+18
| | | | | | | | | | | | | | | | | | | | With this change and CONFIG_GZIP_FAST=2, CONFIG_FEATURE_GZIP_LEVELS=y, GNU gzip and BusyBox gzip now produce identical output at each compression level (excluding 1..3, as BusyBox does not implement these levels). Signed-off-by: Daniel Edgecumbe <git@esotericnonsense.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * gzip: default level with ENABLE_FEATURE_GZIP_LEVELS should be 6Daniel Edgecumbe2019-09-051-1/+1
| | | | | | | | | | | | | | Fixes an off-by-one that actually resulted in level 7 being used Signed-off-by: Daniel Edgecumbe <git@esotericnonsense.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | Merge branch 'busybox' into mergeRon Yorston2019-08-1620-106/+131
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| * tar: change -a from meaning "lzma" to mean "autodetect by extension"Denys Vlasenko2019-08-021-18/+42
| | | | | | | | | | | | | | | | | | | | | | | | function old new delta tar_main 1026 1100 +74 packed_usage 33311 33329 +18 tar_longopts 309 325 +16 vfork_compressor 246 210 -36 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 108/-36) Total: 72 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * tar: code shrinkDenys Vlasenko2019-08-011-12/+13
| | | | | | | | | | | | | | | | | | | | function old new delta writeLongname 226 228 +2 static.prefilled 48 - -48 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/0 up/down: 2/-48) Total: -46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne2019-07-0220-73/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower overhead call to bb_perror_msg() when only a string was being printed with no parameters. This saves space for some CPU architectures because it avoids the overhead of a call to a variadic function. However there has never been a simple version of bb_error_msg(), and since 2007 many new calls to bb_perror_msg() have been added that only take a single parameter and so could have been using bb_simple_perror_message(). This changeset introduces 'simple' versions of bb_info_msg(), bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and bb_herror_msg_and_die(), and replaces all calls that only take a single parameter, or use something like ("%s", arg), with calls to the corresponding 'simple' version. Since it is likely that single parameter calls to the variadic functions may be accidentally reintroduced in the future a new debugging config option WARN_SIMPLE_MSG has been introduced. This uses some macro magic which will cause any such calls to generate a warning, but this is turned off by default to avoid use of the unpleasant macros in normal circumstances. This is a large changeset due to the number of calls that have been replaced. The only files that contain changes other than simple substitution of function calls are libbb.h, libbb/herror_msg.c, libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c, networking/udhcp/common.h and util-linux/mdev.c additonal macros have been added for logging so that single parameter and multiple parameter logging variants exist. The amount of space saved varies considerably by architecture, and was found to be as follows (for 'defconfig' using GCC 7.4): Arm: -92 bytes MIPS: -52 bytes PPC: -1836 bytes x86_64: -938 bytes Note that for the MIPS architecture only an exception had to be made disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h) because it made these files larger on MIPS. Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | Merge branch 'busybox' into mergeRon Yorston2019-05-272-18/+28
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| * comment fixDenys Vlasenko2019-05-261-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libarchive: treat one "FIXME: avoid seek", take 2Denys Vlasenko2019-05-261-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * libarchive: treat one "FIXME: avoid seek"Denys Vlasenko2019-05-241-17/+27
| | | | | | | | | | | | | | | | | | | | | | | | function old new delta xmalloc_read_with_initial_buf - 205 +205 setup_transformer_on_fd 154 150 -4 xmalloc_open_zipped_read_close 143 135 -8 xmalloc_read 201 10 -191 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/3 up/down: 205/-203) Total: 2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * bunzip2: the correct condition is "n < groupCount", not "n <= groupCount". ↵Denys Vlasenko2019-05-231-1/+1
| | | | | | | | | | | | | | | | | | Closes 11896 function old new delta get_next_block 1677 1681 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | win32: interpret absolute paths as relative to %SYSTEMDRIVE%Ron Yorston2019-03-282-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BusyBox contains hardcoded references to absolute paths which are unique in the *nix world but on Microsoft Windows are interpreted as being on the current drive. To make these unique again consider them to be relative to %SYSTEMDRIVE%. Support this by adding functions to: - determine the system drive (not using the environment variable); - change a process's current directory to the root of the system drive; - make relative paths absolute before changing directory (if needed). The following applications have been modified: - ash references /etc/profile from the system drive; - dpkg places its data store on and installs files to the system drive; - rpm installs files to the system drive; - man looks for configuration files and man pages on the system drive. See GitHub issue #158.
* | win32: fix POSIX build (again)Ron Yorston2019-03-121-1/+3
| | | | | | | | | | Some faulty logic with ENABLE_FEATURE_EXTRA_FILE_DATA broke the POSIX build.
* | dpkg: enable in the default configurationRon Yorston2019-02-221-0/+5
| | | | | | | | | | | | | | | | | | | | BusyBox's dpkg is marginally more useful than rpm because it maintains package status. Run the following commands to initialise the filesystem: mkdir -p /var/lib/dpkg/info touch /var/lib/dpkg/status
* | win32: stat(2) succeeds if fetching extra metadata failsRon Yorston2019-02-191-3/+5
| | | | | | | | | | | | | | | | | | Some files can't be opened to fetch additional metadata. When that happens allow stat(2) to successfully return what data it has. In a few cases where the inode number is used to determine if files are identical ignore invalid inode numbers.
* | win32: make stat(2) fetch additional metadataRon Yorston2019-02-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the WIN32 implementation of stat(2) to fetch inode number, device id and number of hardlinks. This requires opening a handle to the target file so it will be slower. A number of features can be enabled or start to work: - tar can detect if an archive is being stored in itself; - find can support the -inum and -links options; - ls can display inode numbers; - diff can detect attempts to compare a file with itself; - du has better support for hardlinked files; - cp can detect attempts to copy a file over itself.
* | libarchive: remove more symlink codeRon Yorston2019-02-142-4/+6
| | | | | | | | | | | | | | Since symlinks aren't supported in busybox-w32 remove more of the code that handles them. Saves 64 bytes.
* | Merge branch 'busybox' into mergeRon Yorston2019-01-1011-17/+17
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| * config: dpkg_deb should be dpkg-debDenys Vlasenko2018-12-281-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * config: more tweaksDenys Vlasenko2018-12-281-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * config: update size informationDenys Vlasenko2018-12-289-15/+15
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| * randomconfig fixesDenys Vlasenko2018-12-271-1/+1
| | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* | tar: return correct exit code for empty tar fileRon Yorston2019-01-061-5/+0
| | | | | | | | | | The WIN32 implementation of check_errors_in_children shouldn't have reset bb_got_signal as it's used to signal an error.
* | win32: emulate SIGPIPERon Yorston2018-12-111-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code to check whether a write error is due to a broken pipe can now either: - return with error EPIPE; - cause the process to exit with code 128+SIGPIPE. The default is the latter but the behaviour can be changed by issuing signal(SIGPIPE, SIG_IGN) and signal(SIGPIPE, SIG_DFL) calls. No actual signal is involved so kill can't send SIGPIPE and handlers other than SIG_IGN and SIG_DFL aren't supported. This does, however, avoid unsightly 'broken pipe' errors from commands like the example in GitHub issue #99: dd if=/dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c${1:-32};echo;
* | Merge branch 'busybox' into mergeRon Yorston2018-11-286-15/+60
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