a198054456
Otherwise, the line is invalidly formatted, and we ignore it.
Detailed explanation:
There are two conditions on which we break out of the loops that precede
these added checks:
- j is too big (we've exhausted the space in the static arrays)
$ grep -r -e PORT_TTY -e PORT_IDS lib/port.*
lib/port.c: static char *ttys[PORT_TTY + 1]; /* some pointers to tty names */
lib/port.c: static char *users[PORT_IDS + 1]; /* some pointers to user ids */
lib/port.c: for (cp = buf, j = 0; j < PORT_TTY; j++) {
lib/port.c: if ((',' == *cp) && (j < PORT_IDS)) {
lib/port.h: * PORT_IDS - Allowable number of IDs per entry.
lib/port.h: * PORT_TTY - Allowable number of TTYs per entry.
lib/port.h:#define PORT_IDS 64
lib/port.h:#define PORT_TTY 64
- strpbrk(3) found a ':', which signals the end of the comma-sepatated
list, and the start of the next colon-separated field.
If the first character in the remainder of the string is not a ':', it
means we've exhausted the array size, but the CSV list was longer, so
we'd be truncating it. Consider the entire line invalid, and skip it.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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
Code
The main development branch is at https://github.com/shadow-maint/shadow.git
See STABLE.md for a list of supported stable branches.
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.