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2021-08-23mount: code shrinkDenys Vlasenko
function old new delta append_mount_options 174 157 -17 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-23mount: with -w, do not fall back to read-only mountsDenys Vlasenko
function old new delta mount_it_now 364 358 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-22rev: correct output for long input linesRon Yorston
The input buffer is initialised to a reasonable size and extended if necessary. When this happened the offset into the buffer wasn't reset to zero so subsequent lines were appended to the long line. Fix this and add some tests. function old new delta rev_main 377 368 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-9) Total: -9 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-16fdisk: indentation fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-15taskset: disallow "taskset -p 0"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-25fdisk: commonalize stringsDenys Vlasenko
function old new delta .rodata 103674 103667 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-25xxd: compat tweak for -iDenys Vlasenko
function old new delta xxd_main 888 893 +5 .rodata 103669 103674 +5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 10/0) Total: 10 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-24switch_root: code shrink - use iterate_on_dir()Denys Vlasenko
function old new delta rmrf - 46 +46 delete_contents 181 99 -82 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 46/-82) Total: -36 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-24taskset: use iterate_on_dir()Denys Vlasenko
function old new delta iter - 27 +27 process_pid_str 854 856 +2 taskset_main 181 135 -46 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/1 up/down: 29/-46) Total: -17 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-20taskset: fix for PID longer than 12 charsDenys Vlasenko
Should we validate that PID is a number for "taskset -ap PID"? We don't actually need it, and pathological input like "../../DIR_WITH_LOTS_OF_PIDS" can only cause "taskset"ing of many pids. Which is something user can do anyway. function old new delta taskset_main 190 181 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-19taskset: implement -aDenys Vlasenko
function old new delta process_pid_str - 854 +854 .rodata 103363 103378 +15 packed_usage 33654 33658 +4 taskset_main 936 190 -746 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/1 up/down: 873/-746) Total: 127 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-18xxd: implement -i "C style output"Denys Vlasenko
function old new delta xxd_main 710 888 +178 .rodata 103252 103331 +79 print_C_style - 78 +78 packed_usage 33639 33652 +13 next 276 278 +2 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 4/0 up/down: 350/0) Total: 350 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-17xxd: implement -o DISPLAYOFFSETDenys Vlasenko
function old new delta xxd_main 680 710 +30 xstrtoll - 30 +30 bb_dump_dump 1511 1531 +20 rewrite 941 951 +10 packed_usage 33629 33639 +10 .rodata 103250 103252 +2 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 5/0 up/down: 102/0) Total: 102 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-17ionice: implement -tDenys Vlasenko
function old new delta packed_usage 33618 33629 +11 ionice_main 272 282 +10 .rodata 103250 103251 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 22/0) Total: 22 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-16blockdev: support --get/setraDenys Vlasenko
function old new delta blockdev_main 251 263 +12 bdcmd_names 82 94 +12 packed_usage 33534 33542 +8 bdcmd_ioctl 44 52 +8 bdcmd_flags 11 13 +2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 42/0) Total: 42 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-15*: more --help tweaksDenys Vlasenko
function old new delta packed_usage 33552 33541 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-14*: --help tweaksDenys Vlasenko
function old new delta packed_usage 33589 33552 -37 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-13*: more --help tweakingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-02-03libbb: introduce and use fputs_stdoutRon Yorston
function old new delta fputs_stdout - 12 +12 zxc_vm_process 7237 7230 -7 yes_main 85 78 -7 write_block 380 373 -7 wrapf 305 298 -7 strings_main 437 430 -7 show_bridge 353 346 -7 rev_main 384 377 -7 put_prompt_custom 58 51 -7 put_cur_glyph_and_inc_cursor 168 161 -7 print_numbered_lines 152 145 -7 print_named_ascii 130 123 -7 print_name 135 128 -7 print_login_issue 386 379 -7 print_ascii 208 201 -7 powertop_main 1249 1242 -7 od_main 1789 1782 -7 logread_main 518 511 -7 head_main 804 797 -7 display_process_list 1319 1312 -7 cut_main 1002 995 -7 bb_dump_dump 1550 1543 -7 bb_ask_noecho 393 386 -7 baseNUM_main 702 695 -7 expand_main 755 745 -10 dumpleases_main 497 487 -10 write1 12 - -12 putcsi 37 23 -14 print_login_prompt 55 41 -14 paste_main 525 511 -14 cat_main 440 426 -14 print_it 245 230 -15 print_addrinfo 1188 1171 -17 print_rule 770 750 -20 print_linkinfo 842 822 -20 httpd_main 791 771 -20 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/34 up/down: 12/-341) Total: -329 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-30libbb: introduce and use xgettimeofday(), do not truncate 64-bit time_t in ↵Denys Vlasenko
shells function old new delta xgettimeofday - 11 +11 get_local_var_value 280 281 +1 svlogd_main 1323 1322 -1 change_epoch 67 66 -1 timestamp_and_log 461 458 -3 hwclock_main 301 298 -3 fmt_time_bernstein_25 135 132 -3 step_time 331 326 -5 script_main 1207 1202 -5 machtime 34 28 -6 curtime 61 54 -7 ts_main 423 415 -8 nmeter_main 761 751 -10 gettime1900d 67 46 -21 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/12 up/down: 12/-73) Total: -61 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-29randomconfig fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-25mount: Surround syslog.h with the config checkLauri Kasanen
This lets bb mount build for limited targets without syslog.h, as long as the parts using it like NFS are disabled. Signed-off-by: Lauri Kasanen <cand@gmx.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-18help text tweaksDenys Vlasenko
function old new delta packed_usage 33570 33502 -68 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-17move ADJTIME_PATH define to header filesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-16libbb: introduce and use xsettimeofday()Denys Vlasenko
function old new delta xsettimeofday - 25 +25 rdate_main 274 260 -14 step_time 348 331 -17 set_kernel_timezone_and_clock 119 102 -17 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/3 up/down: 25/-48) Total: -23 bytes text data bss dec hex filename 1020753 559 5052 1026364 fa93c busybox_old 1020708 559 5052 1026319 fa90f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-16hwclock: improve --help (-l is a compatible shortcut for --localtime)Denys Vlasenko
function old new delta packed_usage 33605 33568 -37 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-16hwclock: fix musl breakage of settimeofday(tz)Denys Vlasenko
function old new delta set_kernel_timezone_and_clock - 119 +119 set_kernel_tz - 28 +28 hwclock_main 480 301 -179 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 0/1 up/down: 147/-179) Total: -32 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-16tweak help textsDenys Vlasenko
function old new delta packed_usage 33650 33605 -45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-14libbb: add and use infrastructure for fixed page size optimizationDenys Vlasenko
function old new delta procps_scan 1121 1118 -3 getpagesize 6 - -6 rpm_main 1037 1027 -10 rpm2cpio_main 120 110 -10 ptok 38 21 -17 time_main 1282 1261 -21 mkswap_main 317 278 -39 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 0/6 up/down: 0/-106) Total: -106 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-14libbb: create and use mmap() helpersDenys Vlasenko
function old new delta mmap_anon - 22 +22 mmap_read - 21 +21 xmmap_anon - 16 +16 rpm_gettags 465 447 -18 bb_full_fd_action 498 480 -18 uevent_main 337 310 -27 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 0/3 up/down: 59/-63) Total: -4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-13help text: replace [OPTIONS] with actual options (if not too long)Denys Vlasenko
function old new delta packed_usage 33620 33665 +45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-13more --help text tweaksDenys Vlasenko
function old new delta packed_usage 33545 33581 +36 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-12nsenter: stop option parsing on 1st non-optionDenys Vlasenko
"nsenter ls -l" gives: invalid option -- 'l' Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-09mount: fix incorrect "success" exitcode if loop device setup failsDenys Vlasenko
When mounting, in parallel, multiple loop devices (squashfs for the submitter's case), the following behavior can be observed: stat64(/path/to/image, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0 openat(AT_FDCWD, /path/to/image, O_RDWR|O_LARGEFILE) = 3 openat(AT_FDCWD, /dev/loop-control, O_RDWR|O_LARGEFILE|O_CLOEXEC) = 4 ioctl(4, LOOP_CTL_GET_FREE) = 12 close(4) = 0 openat(AT_FDCWD, /dev/loop12, O_RDWR|O_LARGEFILE) = 4 ioctl(4, LOOP_GET_STATUS64, {lo_offset=0, lo_number=12, lo_flags=LO_FLAGS_AUTOCLEAR, lo_file_name=/path/to/image, ...}) = 0 close(4) = 0 close(3) = 0 write(2, "mount: can't setup loop device\n", 31mount: can't setup loop device ) = 31 exit_group(0) = ? +++ exited with 0 +++ The ioctl LOOP_CTL_GET_FREE has resulted in the same result for a competing mount process. The subsequent ioctl LOOP_GET_STATUS64 fails, having succeeded for the competing mount process. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-06mount: implement -o nosymfollow, remove bogus -o unionDenys Vlasenko
The (1 << 8) MS_ flag is MS_NOSYMFOLLOW, not MS_UNION. As far as I see in git history of kernel and util-linux, MS_UNION did not ever exist. Why did it appear in our tree in 2009?... function old new delta mount_option_str 379 385 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-06mount: add -o nostrictatime and -o [no]lazytimeDenys Vlasenko
function old new delta mount_option_str 345 379 +34 mount_options 176 188 +12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 46/0) Total: 46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-05mount: do not guess mount as NFS if "hostname:" contains slashesDenys Vlasenko
function old new delta singlemount 1273 1295 +22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-02mount: do not guess bind mounts as nfsDenys Vlasenko
Fails as follows: $ mount -o bind /dev/disk/by-path/pci-0000:13:00.0-scsi-0:0:3:0 /dir mount: bad address '/dev/disk/by-path/pci-0000' function old new delta singlemount 1256 1273 +17 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-30mount: make filesystems[] array byte-alignedDenys Vlasenko
text data bss dec hex filename 1021120 559 5052 1026731 faaab busybox_old 1021092 559 5052 1026703 faa8f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-30decrease padding: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nillyDenys Vlasenko
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>
2020-11-30decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nillyDenys Vlasenko
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>
2020-11-29libbb: introduce and use sleep1()Denys Vlasenko
function old new delta sleep1 - 9 +9 run_shutdown_and_kill_processes 97 95 -2 restore_state_and_exit 116 114 -2 reread_partition_table 67 65 -2 flush_buffer_cache 80 78 -2 chat_main 1302 1300 -2 timeout_main 310 307 -3 telnet_main 1235 1232 -3 stop_handler 86 83 -3 process_action 1078 1075 -3 nbdclient_main 1185 1182 -3 init_main 789 786 -3 getty_main 1541 1538 -3 do_time 410 407 -3 runsv_main 1682 1677 -5 pause_and_low_level_reboot 59 54 -5 inetd_main 1917 1911 -6 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/16 up/down: 9/-50) Total: -41 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: clear LOGMODE_STDIO only directly before daemonizingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22uevent: make it survive ENOBUFSDenys Vlasenko
function old new delta uevent_main 285 337 +52 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: clean upDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: add -v to increase log verbosityJan Klötzke
If logging to stderr and/or syslog the -v option can be given one or more times to increase the log verbosity. If mdev is used as hotplug helper the log level is fixed set to 2 if mdev.log is found an appended because there is no possiblity to pass arguments to the hotplug helper. Signed-off-by: Jan Klötzke <jan@kloetzke.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: add syslog logging modeJan Klötzke
If mdev is run as daemon it should be possible to forward the debug messages to syslog. This feature might be useful if mdev is run with -s during boot too. OTOH it makes no sense for the daemon to log to mdev.log. This can be handled by a syslog daemon way better. If the daemon stays in the foreground due to -f, the messages are still written to stderr as before. Signed-off-by: Jan Klötzke <jan@kloetzke.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: re-initialize if uevent messages were lostJan Klötzke
If the netlink read() failed with ENOBUFS we know that we have missed at least one message due to a socket receive buffer overrun. The only way how to recover is to drop the old socket, open a fresh one and make a cold-plug scan of the current system state. Signed-off-by: Jan Klötzke <jan@kloetzke.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22mdev: move daemon setup to dedicated functionJan Klötzke
Signed-off-by: Jan Klötzke <jan@kloetzke.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-22uevent: increase netlink buffer sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>