7b686d8bd6
The tools newgrp and useradd expect waitpid to behave as described in its manual page. But the notes indicate that if SIGCHLD is ignored, waitpid behaves differently. A user could set SIGCHLD to ignore before starting newgrp through exec. Children of newgrp would not become zombies and their PIDs could be reassigned before newgrp could call kill with the child pid and SIGCONT. The useradd tool is not installed setuid, but I have added the default there as well (copied from vipw). Signed-off-by: Samanta Navarro <ferivoz@riseup.net>
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.
Sites
Contacts
There are several ways to contact us:
- the general discussion mailing list
- the #shadow IRC channel on libera.chat:
- irc://irc.libera.chat/shadow
Mailing archives
- the general discussion mailing list archive
- the commit mailing list archive, only used for historical purposes
Contributions
Contributions are welcome. Follow the guidelines before posting any patches.
Authors and maintainers
Authors and maintainers are listed in AUTHORS.md.