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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>
2017-08-04make 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>
2017-07-27config: trim/improve item names and help texts, take 2Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-21config: deindent all help textsDenys Vlasenko
Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-18Update menuconfig items with approximate applet sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14add-remove-shell: fix crash when shell is already addedTimo Teräs
Avoid dereferencing 'don_add' in strcmp since it is invalid pointer. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-05-26add/remove-shell: copy /etc/shells mode to new fileDenys Vlasenko
function old new delta add_remove_shell_main 259 300 +41 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-17Spelling fixes in comments, documentation, tests and examplesDenys Vlasenko
By klemens <ka7@github.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-13fix "loginutils/Config.in:319 error: Overlong line"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-13libbb: make check_password() also return CHECKPASS_PW_HAS_EMPTY_PASSWORDDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-13su: FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTYDenys Vlasenko
When this feature is enabled, blank passwords are not accepted by su unless the user is on a secure TTY defined in /etc/securetty. This resembles the default PAM configuration of some Linux distros which specify the nullok_secure option for pam_unix.so. Based on patch by Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-13login: move check_securetty to libbbKaarle Ritvanen
Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-29*: add comment about APPLET_ODDNAME formatDenys Vlasenko
It confused me more than once Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-26adduser: help for -G GRP is misleading, fix itDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-20password utils: improve --help, make DEFAULT_PASSWD_ALGO visible if CHPASSWDDenys Vlasenko
Was: $ cryptpw --help ... Print crypt(3) hashed PASSWORD -P,--password-fd=N Read password from fd N -m,--method=TYPE Encryption method -S,--salt=SALT User: "What methods exist? which one os default?" Now: Print crypt(3) hashed PASSWORD -P,--password-fd N Read password from fd N -m,--method TYPE des,md5,sha256/512 (default des) -S,--salt SALT Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-15cryptpw: support "rounds=NNNNNNN$" thing in saltsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-11libbb: consolidate the code to set termios unbuffered modeDenys Vlasenko
function old new delta set_termios_to_raw - 116 +116 count_lines 72 74 +2 powertop_main 1458 1430 -28 top_main 943 914 -29 more_main 759 714 -45 fsck_minix_main 2969 2921 -48 conspy_main 1197 1135 -62 rawmode 99 36 -63 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/6 up/down: 118/-275) Total: -157 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-10Big cleanup in config help and descriptionDenys Vlasenko
Redundant help texts (one which only repeats the description) are deleted. Descriptions and help texts are trimmed. Some config options are moved, even across menus. No config option _names_ are changed. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-23Selinux complains about deprecated selinux/flask.h, stop including itDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-28Code style fixes, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-04comment and readme updatesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-03su: expand help; simplify passing of -c CMD to run_shell()Denys Vlasenko
Also, added a comment about bug 9401 (TIOCSTI input injection). function old new delta packed_usage 30909 30932 +23 su_main 470 487 +17 sulogin_main 260 258 -2 run_applet_and_exit 681 678 -3 run_shell 166 126 -40 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>
2016-04-21*: add most of the required setup_common_bufsiz() callsDenys 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>
2016-03-31make MKPASSWD a separate config option, not an automatic alias to cryptpwDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30sulogin: use bb_error_msg instead of bb_info_msg; better messageDenys Vlasenko
Historic "System Maintenance Mode" message is a tiny bit cryptic. Let's say explicitly what we are doing: we are giving user a shell (presumably to do some maintenance in single-user mode). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30sulogin: remove suid paranoia code, explain why it's not necessaryDenys Vlasenko
function old new delta sulogin_main 325 270 -55 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30sulogin: Dorp incorrect comment about suid-nessDenys Vlasenko
Sulogin is not a suid app, should fail if run by non-root. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30Replace a few more bb_info_msg's by bb_error_msg or printfDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-01-03login: add commented-out PAM double password avoidance from BZ 4003Denys Vlasenko
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>
2015-10-21login: explain -h HOST option betterDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-19loginutils/*: convert to new-style "one file" appletsDenys Vlasenko
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>
2015-10-07build system: -fno-builtin-printfDenys Vlasenko
Benefits are: drops reference to out-of-line putchar(), fixes a few cases of failed string merge. function old new delta i2cdump_main 1488 1502 +14 sha256_process_block64 423 433 +10 sendmail_main 1183 1185 +2 list_table 1114 1116 +2 i2cdetect_main 1235 1237 +2 fdisk_main 2852 2854 +2 builtin_type 119 121 +2 unicode_conv_to_printable2 325 324 -1 scan_recursive 380 378 -2 mkfs_minix_main 2687 2684 -3 buffer_fill_and_print 178 169 -9 putchar 152 - -152 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 7/4 up/down: 34/-167) Total: -133 bytes text data bss dec hex filename 937788 932 17676 956396 e97ec busybox_old 937564 932 17676 956172 e970c busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-09-21adduser: fix help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-09-21adduser: Add -k /path/to/skelBernhard Reutner-Fischer
function old new delta .rodata 157069 157133 +64 adduser_main 921 936 +15 adduser_longopts 103 110 +7 packed_usage 30230 30236 +6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 92/0) Total: 92 bytes Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-08-24login: don't print motd if .hushlogin exists in users homeSören Tempel
function old new delta login_main 978 996 +18 Signed-off-by: Sören Tempel <soeren@soeren-tempel.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-12deluser: also remove user from /etc/groupDenys Vlasenko
function old new delta update_passwd 1270 1470 +200 deluser_main 310 332 +22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-07libpwdgrp: use getpwent() instead of getpwent_r()Denys Vlasenko
function old new delta massage_data_for_non_r_func - 90 +90 bb_internal_getpwent - 69 +69 getXXnam_r 94 162 +68 fill_bounds 131 128 -3 deluser_main 355 310 -45 complete_username 123 78 -45 getXXnam 163 90 -73 massage_data_for_r_func 103 - -103 bb_internal_getpwent_r 121 - -121 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 1/5 up/down: 227/-407) Total: -163 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-05deluser: implement --remove-homeDenys Vlasenko
function old new delta deluser_main 308 355 +47 packed_usage 30149 30156 +7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 54/0) Total: 54 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-01-05libbb: code shrink by factoring out common update_utmp_DEAD_PROCESSDenys Vlasenko
function old new delta update_utmp_DEAD_PROCESS - 17 +17 telnetd_main 1685 1674 -11 mark_terminated 56 45 -11 handle_sigchld 74 63 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-02getty: set tty attrs so that control chars are shown as ^cDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-08-15addgroup: mention -S in the help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-11getty: explain when setsid() fails. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-03-16su: add a delay if the password is incorrectRomain Naour
Signed-off-by: Romain Naour <romain.naour@openwide.fr> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-19Kbuild: move CONFIG_PAM to general configurationBartosz Golaszewski
Currently CONFIG_PAM depends on CONFIG_LOGIN, but is used by the httpd applet too. This patch moves said option to general configuration, thus allowing to compile httpd with PAM support independently from login. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-01-17adduser,addgroup: introduce and use CONFIG_LAST_IDTito Ragusa
Changes adduser.c, addgroup.c and Config.src to set and use CONFIG_LAST_ID. function old new delta adduser_main 841 865 +24 addgroup_main 407 425 +18 Signed-off-by: Tito Ragusa <farmatito@tiscali.it> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-12-20adduser: check whether run with no USERNAME. Closes 6728Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>