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2016-08-19hush: fix a bug in FEATURE_SH_STANDALONE=y config. Closes 9186Denys Vlasenko
Run this in a "sh SCRIPT": sha256sum /dev/null echo END sha256sum is a NOEXEC applet. It runs in a forked child. Then child exit()s. By this time, entire script is read, and buffered in a FILE object from fopen("SCRIPT"). But fgetc() did not consume entire input. exit() lseeks back by -9 bytes, from <eof> to 'e' in 'echo'. (this may be libc-specific). This change of fd position *is shared with the parent*! Now parent can read more, and it thinks there is another "echo END". End result: two "echo END"s are run. Fix this by _exit()ing instead. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-14lineedit: trivial codeshrink for vi-modeNatanael Copa
Introduce and use BB_isalnum_or_underscore(). function old new delta BB_isalnum_or_underscore - 43 +43 vi_word_motion 162 150 -12 vi_end_motion 163 145 -18 vi_back_motion 198 179 -19 BB_isalnum 39 - -39 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/3 up/down: 43/-88) Total: -45 bytes Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-13cp: fix -i for POSIX mode. Closes 9106Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-22config: disentangle PREFER_APPLETS from SH_STANDALONE and SH_NOFORKDenys Vlasenko
On user request. I thought enabling/disabling them all together is more consistent. Evidently, some people do want them to be separately selectable. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-14cp: make verbose cp show symlink copies tooDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-06getopt32: add new syntax of 'o:+' and 'o:*' for -o NUM and -o LISTDenys Vlasenko
In many cases, this aqllows to drop use of opt_complementary. Approximately -400 bytes: function old new delta getopt32 1423 1502 +79 opt_string 17 18 +1 OPT_STR 24 25 +1 uniq_main 416 406 -10 timeout_main 279 269 -10 sulogin_main 270 260 -10 readprofile_main 1825 1815 -10 ps_main 543 533 -10 pidof_main 245 235 -10 pgrep_main 611 601 -10 od_main 2600 2590 -10 mkfs_minix_main 2684 2674 -10 mkfs_ext2_main 2603 2593 -10 microcom_main 712 702 -10 makemime_main 315 305 -10 ionice_main 282 272 -10 inetd_main 2074 2064 -10 ifplugd_main 1144 1134 -10 halt_main 353 343 -10 getopt_main 636 626 -10 fdisk_main 2854 2844 -10 env_main 206 196 -10 dmesg_main 319 309 -10 conspy_main 1214 1204 -10 awk_main 981 971 -10 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/22 up/down: 81/-220) Total: -139 bytes text data bss dec hex filename 919373 906 14060 934339 e41c3 busybox_old 918969 906 14060 933935 e402f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-05build system: fix a few warnings for allnoconfig buildDenys Vlasenko
Not that allnoconfig build is useful in any way... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-05libbb: suppress warning about run_applet_and_exitRon Yorston
When busybox is configured to contain a single applet an unnecessary declaration of run_applet_and_exit results in a warning. Move the declaration to avoid this. Reported-by: Lauri Kasanen <curaga@operamail.com> Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-19randomconfig fixes 2Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-19libbb: move common code into run_applet_and_exitRon Yorston
Both calls to run_applet_and_exit are followed by the same code to print an error message and return status 127. Remove this duplication and make run_applet_and_exit static. function old new delta run_applet_and_exit 675 667 -8 main 119 92 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-35) Total: -35 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-18Allow "busybox <applet>" to work when busybox is disabledRon Yorston
A recent commit made it possible to disable BusyBox's --install and --list options. However it also stopped "busybox <applet> <params>" from working. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-31libbb: fix time parsing of [[CC]YY]MMDDhhmm[.SS]. Closes 8951Natanael Copa
If SS is not given a value, it is assumed to be zero. http://pubs.opengroup.org/onlinepubs/9699919799/utilities/touch.html Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-31Make busybox an optional appletDenys Vlasenko
If it's disabled, code shrinks by about 900 bytes: function old new delta usr_bin 10 - -10 usr_sbin 11 - -11 install_dir 20 - -20 applet_install_loc 184 - -184 run_applet_and_exit 686 21 -665 ------------------------------------------------------------------------------ (add/remove: 0/4 grow/shrink: 0/1 up/down: 0/-890) Total: -890 bytes text data bss dec hex filename 911327 493 7336 919156 e0674 busybox_old 909848 493 7336 917677 e00ad busybox_unstripped but busybox executable by itself does not say anything useful: $ busybox busybox: applet not found Based on the patch by Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-27cp: add -u/--update and --remove-destinationDenys Vlasenko
Based on the patch by wdlkmpx@gmail.com function old new delta copy_file 1546 1644 +98 add_partition 1270 1362 +92 ask_and_unlink 95 133 +38 do_iproute 132 157 +25 decode_one_format 710 715 +5 cp_main 369 374 +5 ubirename_main 198 202 +4 read_package_field 232 230 -2 bb_make_directory 421 412 -9 packed_usage 30505 30476 -29 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 7/3 up/down: 267/-40) Total: 227 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-22*: slap on a few ALIGN1/2s where appropriateDenys Vlasenko
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map" text data bss dec hex filename 829901 4086 1904 835891 cc133 busybox_before 829665 4086 1904 835655 cc047 busybox Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: constify *bb_common_bufsiz1 (if it is compiled to be a pointer)Denys Vlasenko
This lets gcc optimize much better: text data bss dec hex filename 922846 910 13056 936812 e4b6c busybox_unstripped.nonconst 920255 910 13056 934221 e414d busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: make "COMMON_BUFSIZE = 1024 bytes, the buffer will be malloced" workDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for itDenys Vlasenko
The config item is FEATURE_USE_BSS_TAIL. When it is off (default): function old new delta read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 push 46 44 -2 inetd_main 2136 2134 -2 uevent_main 421 418 -3 addLines 97 92 -5 bb_common_bufsiz1 8193 1024 -7169 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829901 4086 1904 835891 cc133 busybox_unstripped FEATURE_USE_BSS_TAIL=y: read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 inetd_main 2136 2134 -2 bb_common_bufsiz1 8193 - -8193 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829911 4086 880 834877 cbd3d busybox_unstripped FIXME: setup_common_bufsiz() calls are missing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-15Rewrite iteration through applet names to save a few bytesRon Yorston
function old new delta run_applet_and_exit 758 755 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes In standalone shell mode the saving increases to 17 bytes. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03find_applet_by_name: loop index should be signedRon Yorston
The loop for (j = ARRAY_SIZE(applet_nameofs)-1; j >= 0; j--) { was intended to terminate when j goes negative, so j needs to be signed. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03whitespace and namespace cleanupsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03ubirmvol: Implement -N switch for ubirmvolSven Eisenberg
function old new delta get_volid_by_name - 125 +125 ubi_devnum_from_devname - 43 +43 ubi_tools_main 1215 1220 +5 packed_usage 30674 30655 -19 ubirename_main 394 221 -173 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 1/2 up/down: 173/-192) Total: -19 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03libbb: speed up error_msg functionsDenys Vlasenko
function old new delta bb_verror_msg 386 466 +80 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03main(): add a TODO about finding a use for _end[] areaDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-02typo fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-02find_applet_by_name: add an example of faster linear search codeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-02nsenter,unshare: share common code; fix a bug of not closing all fdsDenys Vlasenko
function old new delta xvfork_parent_waits_and_exits - 64 +64 exec_prog_or_SHELL - 39 +39 unshare_main 873 810 -63 nsenter_main 663 596 -67 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 0/2 up/down: 106/-130) Total: -27 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-01libbb: two new functions: wait_for_exitstatus(pid), xfchdir(fd)Denys Vlasenko
Bartosz Golaszewski proposed xfchdir() Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30udhcp: get rid of bb_info_msg()Denys Vlasenko
function old new delta udhcpd_main 1501 1531 +30 d6_recv_raw_packet 251 264 +13 perform_d6_release 188 198 +10 udhcpc6_main 2443 2449 +6 udhcp_recv_raw_packet 582 588 +6 udhcp_recv_kernel_packet 132 138 +6 send_d6_renew 140 146 +6 d6_recv_kernel_packet 118 124 +6 send_renew 77 82 +5 send_discover 85 90 +5 send_decline 84 89 +5 send_d6_select 97 102 +5 send_d6_discover 174 179 +5 perform_release 167 172 +5 count_lines 72 74 +2 udhcpc_main 2836 2837 +1 bb_info_msg 125 - -125 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 17/4 up/down: 117/-180) Total: -63 bytes text data bss dec hex filename 924935 906 17160 943001 e6399 busybox_old 924736 906 17160 942802 e62d2 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30applet_tables: save space by removing applet name offsetsRon Yorston
The array applet_nameofs consumes two bytes per applet. It encodes nofork/noexec flags suid flags the offset of the applet name in the applet_name string Change the applet_table build tool to store the flags in two separate arrays (applet_flags and applet_suid). Replace applet_nameofs[] with a smaller version that only stores a limited number of offsets. This requires changes to the macros APPLET_IS_NOFORK, APPLET_IS_NOEXEC and APPLET_SUID. According to Valgrind the original find_applet_by_name required 353 cycles per call, averaged over all names. Adjusting the number of known offsets allows space to be traded off against execution time: KNOWN_OFFSETS cycles bytes (wrt KNOWN_OFFSETS = 0) 0 9057 - 2 4604 32 4 2407 75 8 1342 98 16 908 130 32 884 194 This patch uses KNOWN_OFFSETS = 8. v2: Remove some dead code from the applet_table tool; Treat the applet in the middle of the table as a special case. v3: Use the middle applet to adjust the start of the linear search as well as the last applet found. v4: Use an augmented linear search in find_applet_by_name. Drop the special treatment of the middle name from get_applet_name: most of the advantage now derives from the last stored value. v5: Don't store index in applet_nameofs, it can be calculated. v6: Tweaks by Denys function old new delta find_applet_by_name 25 125 +100 applet_suid - 92 +92 run_applet_no_and_exit 452 460 +8 run_applet_and_exit 695 697 +2 applet_name_compare 31 - -31 applet_nameofs 734 14 -720 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 3/1 up/down: 202/-751) Total: -549 bytes text data bss dec hex filename 925464 906 17160 943530 e65aa busybox_old 924915 906 17160 942981 e6385 busybox_unstripped Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-12-18chpasswd: support -c argument and respect DEFAULT_PASSWD_ALGOPascal Bach
Signed-off-by: Pascal Bach <pascal.bach@siemens.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-12-17Resolve linker issues with Android API 21 (dprintf, tcdrain)Chris Renshaw
Signed-off-by: Chris Renshaw <osm0sis@outlook.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-30lineedit: FEATURE_REVERSE_SEARCH should not depend on SAVEHISTORYDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-30lineedit: search applets as well as PATH for tab completionRon Yorston
In standalone shell mode search the applet table as well as PATH when tab completing a command. Use a stupid linear search: we're also about to read all the directories on PATH so efficiency isn't a big concern. function old new delta add_match - 53 +53 complete_cmd_dir_file 687 724 +37 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/0 up/down: 90/0) Total: 90 bytes Signed-off-by: Ron Yorston <rmy@frippery.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-30busybox: alter help message in standalone shell modeRon Yorston
Signed-off-by: Ron Yorston <rmy@frippery.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-25tweak defconfigDenys Vlasenko
MONOTONIC_SYSCALL=y by default FEATURE_LAST_SMALL is gone: now FEATURE_LAST_FANCY is a "bool", not a "choice". Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-24pmap: fix bogus {no such process} comm field textDenys Vlasenko
function old new delta read_cmdline 246 266 +20 procps_get_maps 196 193 -3 packed_usage 30413 30404 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 20/-12) Total: 8 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-23tidy up strtok useDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-23wget: if stderr is not a tty, progress bar shouldn't use tty-tricksDenys Vlasenko
function old new delta bb_progress_update 706 768 +62 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-23libbb: factor out code which queries screen widthDenys Vlasenko
function old new delta get_terminal_width - 17 +17 stty_main 1196 1197 +1 pstree_main 321 319 -2 ls_main 735 731 -4 watch_main 232 225 -7 bb_progress_update 714 706 -8 ps_main 555 543 -12 run_applet_and_exit 708 695 -13 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/6 up/down: 18/-46) Total: -28 byte Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-22remove systemd supportDenys Vlasenko
systemd people are not willing to play nice with the rest of the world. Therefore there is no reason for the rest of the world to cooperate with them. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-19libbb: get_uidgid() always called with allow_numeric=1Denys Vlasenko
function old new delta xget_uidgid 30 25 -5 make_device 2188 2183 -5 main 797 792 -5 get_uidgid 240 225 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-15du: extra compat: with -k and -m, round sizes upDenys Vlasenko
function old new delta print 36 65 +29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-14libiproute: rename invarg(a,b) to invarg_1_to_2(a,b)Denys Vlasenko
invarg(a,b) - "invalid argument", but how a and b enter the message? invarg_1_to_2(a,b) is somewhat easier to read: "invalid argument 'a' to 'b'" Audit of usage revealed a number of bad uses, with too long messages. text data bss dec hex filename 938848 932 17448 957228 e9b2c busybox_old 938788 932 17448 957168 e9af0 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-13libbb: introduce kernel-style BUILD_BUG_ON()Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-09use auto_string() where appropriate to kill a few staticsDenys Vlasenko
Custom linker script 'busybox_ldscript' found, using it function old new delta static.str 4 - -4 static.passwd 4 0 -4 bb_ask 322 311 -11 ether_print 63 47 -16 UNSPEC_print 82 66 -16 INET_sprint 59 38 -21 INET6_sprint 54 30 -24 make_human_readable_str 292 235 -57 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/7 up/down: 0/-153) Total: -153 bytes text data bss dec hex filename 939880 992 17480 958352 e9f90 busybox_old 939736 992 17456 958184 e9ee8 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-09libbb: auto_string() for efficient handling of temporary malloced stirngsDenys Vlasenko
Use it in libiproute: get rid of one static string buffer. function old new delta auto_string - 51 +51 ll_index_to_name 10 49 +39 buffer_fill_and_print 169 178 +9 scan_recursive 378 380 +2 decode_one_format 732 734 +2 cmdputs 334 332 -2 static.cur_saved 4 1 -3 static.nbuf 16 - -16 printable_string 94 57 -37 ll_idx_n2a 53 - -53 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 4/3 up/down: 103/-111) Total: -8 bytes text data bss dec hex filename 939880 992 17496 958368 e9fa0 busybox_old 939880 992 17480 958352 e9f90 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-09remove global "jmp_buf die_jmp" from !FEATURE_PREFER_APPLETS buildsDenys Vlasenko
function old new delta xfunc_has_died - 21 +21 sleep_much - 12 +12 sleep10 - 9 +9 die_func - 4 +4 fflush_stdout_and_exit 35 36 +1 builtin_type 121 119 -2 die_sleep 4 - -4 xfunc_die 60 24 -36 hush_main 1128 1011 -117 die_jmp 156 - -156 ------------------------------------------------------------------------------ (add/remove: 4/2 grow/shrink: 1/3 up/down: 47/-315) Total: -268 bytes text data bss dec hex filename 939992 992 17652 958636 ea0ac busybox_old 939880 992 17496 958368 e9fa0 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-07md5sum: code shrinkDenys Vlasenko
For CONFIG_MD5_SMALL=1: function old new delta md5_process_block64 925 881 -44 For CONFIG_MD5_SMALL=0: function old new delta md5_process_block64 1603 1586 -17 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-07libbb: more compact API for bb_parse_mode()Denys Vlasenko
function old new delta make_device 2182 2188 +6 parse_command 1440 1443 +3 parse_params 1497 1499 +2 install_main 773 769 -4 mkdir_main 168 160 -8 getoptscmd 641 632 -9 builtin_umask 158 147 -11 bb_parse_mode 431 410 -21 umaskcmd 286 258 -28 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/6 up/down: 11/-81) Total: -70 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-13 12:57:21 +0000