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2017-08-06setserial: code shrink, better --help textDenys Vlasenko
function old new delta packed_usage 31747 31749 +2 setserial_main 1152 1132 -20 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06slattach: code shrink, better --help textDenys Vlasenko
function old new delta tcsetattr_serial_or_warn - 34 +34 static.int_N_SLIP - 4 +4 restore_state_and_exit 123 117 -6 packed_usage 31774 31747 -27 set_termios_state_or_warn 42 - -42 slattach_main 673 624 -49 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 0/3 up/down: 38/-124) Total: -86 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06nameif: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06Tweak outdated documentation and commentsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06tunctl: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06kbd_more: make it NOEXEC, remove redundant opt clearingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06kbd_mode: try harder to find console device if -C TTY is not givenDenys Vlasenko
Was (under X): $ ./busybox_old kbd_mode kbd_mode: ioctl 0x4b44 failed: Inappropriate ioctl for device Now: $ ./busybox kbd_mode The keyboard is in off mode function old new delta kbd_mode_main 166 174 +8 packed_usage 31782 31764 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 8/-18) Total: -10 bytes text data bss dec hex filename 915757 485 6880 923122 e15f2 busybox_old 915747 485 6880 923112 e15e8 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-06kbd_mode: show "off" mode tooDenys Vlasenko
function old new delta kbd_mode_main 156 166 +10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05lspci,lsscsi,lsusb: make them NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05umount: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05pstree: make it NOEXECDenys Vlasenko
While at it, documet why ps can't be NOEXEC. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05chattr,lsattr,tune2fs: make them NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05chattr: fix option parsing to accept more cryptic option combosDenys Vlasenko
function old new delta chattr_main 286 289 +3 packed_usage 31793 31761 -32 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05sysctl: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05sysctl: recognize ";comment" and "<whitespace>#comment" linesDenys Vlasenko
function old new delta config_read 639 699 +60 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05libbb: make trim() return pointer to terminating NULDenys Vlasenko
function old new delta trim 80 90 +10 angle_address 56 50 -6 sysctl_main 282 273 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: +10/-15) Total: -5 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05sysctl: fix file parsing, do not require -w for VAR=VALDenys Vlasenko
function old new delta sysctl_act_on_setting - 451 +451 sysctl_main 222 282 +60 packed_usage 31744 31793 +49 config_read 604 639 +35 sysctl_act_recursive 612 163 -449 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/1 up/down: 595/-449) Total: 146 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05cryptpw, mkpasswd: make them NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05chvt, deallocvt, dumpkmap, fgconsole, loadkmap: make them NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05pivot_root: make it NOFORKDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05partprobe: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05sv, svc: make them NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05svc: fix a case where with more than option, getopt() state is not resetDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-05blockdev, fsfreeze, fstrim, mountpoint: make NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04libbb: use _exit, not exit, in bb_daemonize_or_rexec()Denys Vlasenko
By the time we reach exit in parent, child already exited or execed. We should not re-run libc cleanup code. While at it, introduce bb_daemon_helper() and add a few comments. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04stty: make in NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04make 17 state-changing execing applets (ex: "nice PROG ARGS") noexecDenys Vlasenko
The applets with "<applet> [opts] PROG ARGS" API very quickly exec another program, noexec is okay for them: chpst/envdir/envuidgid/softlimit/setuidgid chroot chrt ionice nice nohup setarch/linux32/linux64 taskset cttyhack "reset" and "sulogin" applets don't have this form, but also exec another program at once, thus made noexec too. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04mesg: make in NOFORKDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04pmap: tweak help text, show usage if no params are givenDenys Vlasenko
Noticed while auditing nofork/noexec status function old new delta pmap_main 70 80 +10 packed_usage 31747 31744 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04runlevel: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04mktemp: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04chat: trim help textDenys Vlasenko
Noticed while auditing nofork/noexec status function old new delta packed_usage 31777 31747 -30 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04getopt32: move support for "always treat first arg as option" to users (tar/ar)Denys Vlasenko
Now getopt() never leaks (and never performs) any xmalloc's. function old new delta ar_main 522 556 +34 tar_main 986 1014 +28 getopt32 1458 1350 -108 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 62/-108) Total: -46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04getopt32: factor out code to treat all args as optionsDenys Vlasenko
Working towards making getopt32() xmalloc-free function old new delta make_all_argv_opts - 58 +58 top_main 914 912 -2 getopt32 1517 1458 -59 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 0/2 up/down: 58/-61) Total: -3 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04tweak NOFORK_NOEXEC.lstDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04ash: BASH_XTRACEFD bashismDenys Vlasenko
Based on patch by Johannes Schindelin <johannes.schindelin@gmx.de> function old new delta evalcommand 1447 1500 +53 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04ash: remove no-longer-used variableJohannes Schindelin
As of 035486c75 (ash: significant overhaul of redirect saving logic, 2017-07-31), the sv_pos variable is no longer used (just assigned to, with no further effect). Let's just remove it. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04ash: INT_OFF/INT_ON around run_nofork_applet()Denys Vlasenko
function old new delta evalcommand 1441 1447 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04sheel: improve comments on signal handlingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04modutils: make them NOEXEC except depmodDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04microcom: require exactly one non-optionDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03ash: add a fixme comment at run_nofork_appletDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03nofork: fix a bug uncovered by hush testsuite (forgotten fflush)Denys Vlasenko
function old new delta run_nofork_applet 280 287 +7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03getopt: make it NOEXECDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03new NOFORKs: pwdx,kill[all5],ttysize,realpath,readlink NOEXECs: date,resizeDenys Vlasenko
function old new delta run_nofork_applet 258 280 +22 readlink_main 112 123 +11 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 33/0) Total: 33 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03config: FEDORA_COMPAT option (so far only tweaks uname)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03new NOFORKs: clear, nproc, tty, uname, arch, unlink, whichDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-02hush: do not accept "if() { echo; }" function defDenys Vlasenko
function old new delta parse_stream 2634 2692 +58 msg_and_die_if_script - 21 +21 syntax_error_unexpected_ch 41 46 +5 syntax_error_at 14 18 +4 die_if_script 31 28 -3 setup_redirects 319 308 -11 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/2 up/down: 88/-14) Total: 74 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-02line editing: make read_line_input() not take timeout paramDenys Vlasenko
It's almost always -1. function old new delta read_line_input 3902 3912 +10 new_line_input_t 24 31 +7 pgetc 583 585 +2 save_command_ps_at_cur_history 80 78 -2 read_line 76 74 -2 fgetc_interactive 246 244 -2 addLines 84 82 -2 doCommands 2226 2222 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/5 up/down: 19/-12) Total: 7 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-02hush: make SIGINT handling visually less confusingDenys Vlasenko
$ echo $$ 18448 $ echo $? <wait here, run "kill -INT 18448" in other shell><press enter> <=== NOTHING?? $ That empty line does not look right. After this patch: $ echo $$ 18448 $ echo $? <wait here, run "kill -INT 18448" in other shell><press enter> ^C $ function old new delta fgetc_interactive 245 246 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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