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32 Commits

Author SHA1 Message Date
Denys Vlasenko
a3de0b3b86 libbb: make check_password() also return CHECKPASS_PW_HAS_EMPTY_PASSWORD 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-04-13 13:04:05 +02:00
Denys Vlasenko
335681ca8e su: FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY 
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>
 2017-04-13 12:57:04 +02:00
Morten Kvistgaard
feac9b607d ftpd: add optional support for authentication 
function                                             old     new   delta
cmdio_get_cmd_and_arg                                  -     237    +237
get_passwd                                             -      97     +97
check_password                                         -      82     +82
ftpd_main                                           2297    2178    -119
ask_and_check_password_extended                      206      84    -122
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 0/2 up/down: 416/-241)          Total: 175 bytes

Signed-off-by: Morten Kvistgaard <MK@pch-engineering.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-08-05 21:57:18 +02:00
Denys Vlasenko
198b02f7dd fix failures found by randomconfig builds 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-12-31 23:22:36 +01:00
Denys Vlasenko
8b59b2c13e libbb: move nuke_str() from passwd into libbb 
function                                             old     new   delta
nuke_str                                               -      15     +15
ask_and_check_password_extended                      215     206      -9
init_main                                            781     771     -10
nuke_str                                              27       -     -27
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/2 up/down: 15/-46)            Total: -31 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 13:36:45 +01:00
Denys Vlasenko
6ef7729112 comment tweak 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 13:16:44 +01:00
Denys Vlasenko
9c1c605b1a sulogin: use common password-checking routine. 
This needed some extensions correct_passwd() function,
which got renamed ask_and_check_password() to better describe what it does.

function                                             old     new   delta
ask_and_check_password_extended                        -     215    +215
ask_and_check_password                                 -      12     +12
vlock_main                                           394     397      +3
sulogin_main                                         494     326    -168
correct_password                                     207       -    -207
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 1/1 up/down: 230/-375)         Total: -145 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 13:09:06 +01:00
walter harms
d1d794fd48 refactor correct_password.c to avoid one if 
Signed-off-by: walter harms <wharms@bfs.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-04 12:26:20 +02:00
Bernhard Reutner-Fischer
82b1429966 - add new applet mkpasswd(1) 
function                                             old     new   delta
bb_ask                                                 -     355    +355
mkpasswd_main                                          -     296    +296
.rodata                                           121746  121847    +101
packed_usage                                       24632   24689     +57
static.methods                                         -      21     +21
gmatch                                               229     248     +19
bb_ask_stdin                                           -      11     +11
applet_names                                        1949    1958      +9
applet_main                                         1172    1176      +4
sulogin_main                                         503     505      +2
applet_nameofs                                       586     588      +2
sha256_hash                                          329     327      -2
correct_password                                     208     206      -2
parse_command                                       1442    1439      -3
get_cred_or_die                                      145     141      -4
passwd_main                                         1054    1044     -10
bb_askpass                                           348       -    -348
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 7/5 up/down: 877/-369)          Total: 508 bytes
 2008-12-03 18:48:39 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on 
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
 2008-06-27 02:52:20 +00:00
Denis Vlasenko
21765fa063 udhcpc: kill undocumented -W, it was a no-op. 
fix option parsing in the case some CONFIG_x are off.
 disable -b on NOMMU, make backgrounding work correctly
 (if a bit differently from MMU case). Previously,
 it wasn't working at all.
 stop using global data for flags in main(), opt
 bitfield works as well.

function                                             old     new   delta
cryptpw_main                                         177     153     -24
packed_usage                                       24478   24452     -26
client_background                                     26       -     -26
udhcpc_main                                         2462    2372     -90
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/3 up/down: 0/-166)           Total: -166 bytes
 2008-06-13 20:44:05 +00:00
Denis Vlasenko
fdddab0c61 make pw_encrypt() return malloc'ed string. 
text    data     bss     dec     hex filename
 759802     604    6684  767090   bb472 busybox_old
 759804     604    6676  767084   bb46c busybox_unstripped
 2008-06-12 16:56:52 +00:00
Denis Vlasenko
4ea83bf562 uclibc insists on having 70k static buffer for crypt. 
For bbox it's not acceptable. Roll our own des and md5 crypt
implementation. Against older uclibc:

   text    data     bss     dec     hex filename
 759945     604    6684  767233   bb501 busybox_old
 759766     604    6684  767054   bb44e busybox_unstripped

so, we still save on code size.
 2008-06-12 16:55:59 +00:00
Denis Vlasenko
15ca51e3e2 appletlib.c: make it actally follow _BB_SUID_ALWAYS rules 
adduser: implement -S and code shrink / fix uid selection
*: sanitize getspnam_r use

   text    data     bss     dec     hex filename
 777042     974    9676  787692   c04ec busybox_old
 776883     974    9676  787533   c044d busybox_unstripped
 2007-10-29 19:25:45 +00:00
Denis Vlasenko
54e19da86d correct_password: if password is 'x' or '*' and there is no shadow, use 
fake encrypted password 'aa' (which is guaranteed to fail password check).
 2007-07-03 10:28:46 +00:00
Denis Vlasenko
e190c16636 correct_password: do not print "no shadow passwd..." message 
function                                             old     new   delta
correct_password                                     204     191     -13
.rodata                                           129530  129466     -64
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-77)             Total: -77 bytes
   text    data     bss     dec     hex filename
 675984    2744   13968  692696   a91d8 busybox_old
 675908    2744   13968  692620   a918c busybox_unstripped
 2007-07-03 06:15:42 +00:00
Denis Vlasenko
85532fc4d4 remove obsolete comment 2007-06-16 14:16:30 +00:00
Bernhard Reutner-Fischer
867266059b - vda perfers not to use the banner 2007-06-15 08:30:33 +00:00
Denis Vlasenko
ca525b4f24 *: BB_BANNER -> bb_banner (it is not a const or #define)! 
correct_password: explain in detail why it is ok to use bb_banner
fsck_minix: make it print bb version, not it's own (outdated/irrelevant) one

Marginal size difference:
   text    data     bss     dec     hex filename
 679119    2700   15632  697451   aa46b busybox_old
 679091    2700   15632  697423   aa44f busybox_unstripped
 2007-06-13 12:27:17 +00:00
Bernhard Reutner-Fischer
d71e45856e - use bb_msg_full_version instead of a separate string. Saves a minor 3 bytes. 2007-06-11 15:09:21 +00:00
Denis Vlasenko
65e14b4588 login: ask passwords even for wrong usernames. 
# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 680099    2704   15648  698451   aa853 busybox_old
 680110    2704   15648  698462   aa85e busybox_unstripped
 2007-06-08 15:27:06 +00:00
Denis Vlasenko
5df955fce2 Do not fail password check if shadow password does not exist - 
fall back to ordinary one

Reduced usage of functions returning datain static buffers.
(mostly passwd/group/shadow related):

function                                             old     new   delta
correct_password                                     143     193     +50
sulogin_main                                         490     533     +43
adduser_main                                         732     774     +42
passwd_main                                         1875    1915     +40
addgroup_main                                        330     365     +35
bb_internal_getspnam                                  38       -     -38
bb_internal_fgetpwent                                 38       -     -38
bb_internal_fgetgrent                                 38       -     -38
static.resultbuf                                     168      88     -80
static.buffer                                       1872    1104    -768
------------------------------------------------------------------------------
(add/remove: 0/3 grow/shrink: 5/2 up/down: 210/-962)         Total: -752 bytes
 2007-03-13 13:01:14 +00:00
Denis Vlasenko
bf66fbc8e2 introduce LONE_CHAR (optimized strcmp with one-char string) 2006-12-21 13:23:14 +00:00
Denis Vlasenko
a36a676923 correct_password: undo whitespace damage. 
vlock + correct_password: fix incorrect line breaks in messages.
 2006-09-23 13:11:49 +00:00
Rob Landley
a389651115 Remove bb_strlen() in favor of -fno-builtin-strlen. Saves as many bytes 
as the old optimization did (actually does slightly better under gcc 4.0), and
simplifies the code.
 2006-05-07 20:20:34 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
Rob Landley
3d1bbf0a5f Minor cosmetic fix from Tito. 2006-01-09 01:07:24 +00:00
Glenn L McGrath
29de86314a Remove this error message at Vodz request, it was misleading. 2004-09-24 02:36:44 +00:00
Eric Andersen
6f9a7783ce Do not use getpass(3) 2004-05-01 01:27:30 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Manuel Novoa III
cad5364599 Major coreutils update. 2003-03-19 09:13:01 +00:00
Eric Andersen
27f64e1f4e Port over the last of the tinylogin applets 
-Erik
 2002-06-23 04:24:25 +00:00