Alejandro Colomar ac8b81c2b7 Prefer getrandom(3)/getentropy(3) over arc4random(3bsd)
arc4random(3) without kernel support is unsafe, as it can't know when to
drop the buffer.  Since we depend on libbsd since recently, we have
arc4random(3) functions always available, and thus, this code would have
always called arc4random_buf(3bsd), which is unsafe.  Put it after some
better alternatives, at least until in a decade or so all systems have a
recent enough glibc.

glibc implements arc4random(3) safely, since it's just a wrapper around
getrandom(2).

Link: <https://inbox.sourceware.org/libc-alpha/20220722122137.3270666-1-adhemerval.zanella@linaro.org/>
Link: <https://inbox.sourceware.org/libc-alpha/5c29df04-6283-9eee-6648-215b52cfa26b@cs.ucla.edu/T/>
Cc: Cristian Rodríguez <crrodriguez@opensuse.org>
Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: Guillem Jover <guillem@hadrons.org>
Cc: Björn Esser <besser82@fedoraproject.org>
Reviewed-by: "Jason A. Donenfeld" <Jason@zx2c4.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2023-01-16 10:12:31 +01:00
2022-12-21 08:22:22 -06:00
2022-12-22 10:31:43 +01:00
2022-12-29 13:58:49 -06:00
2022-09-27 16:01:31 -05:00
2022-03-18 16:10:51 -05:00
2023-01-12 12:10:57 +01:00
2021-12-23 19:36:50 -06:00
2023-01-12 12:10:57 +01:00
2021-12-19 14:09:08 -06:00
2021-11-22 15:31:54 +01:00

shadow-utils

Introduction

The shadow-utils package includes the necessary programs for converting UNIX password files to the shadow password format, plus programs for managing user and group accounts. The pwconv command converts passwords to the shadow password format. The pwunconv command unconverts shadow passwords and generates a passwd file (a standard UNIX password file). The pwck command checks the integrity of password and shadow files. The lastlog command prints out the last login times for all users. The useradd, userdel, and usermod commands are used for managing user accounts. The groupadd, groupdel, and groupmod commands are used for managing group accounts.

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Authors and maintainers

Authors and maintainers are listed in AUTHORS.md.

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