Note that Suse login(1) does not use any default for TTYGROUP, it
means that TTYGROUP has to be explicitly defined otherwise user\'s
primary group is used.
The util-linux login(1) uses 'tty' group name as a default value.
Signed-off-by: Karel Zak <kzak@xxxxxxxxxx>
---
login-utils/login.1 | 9 +++++++++
login-utils/login.c | 15 +++++++++++----
2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/login-utils/login.1 b/login-utils/login.1
index 1d3ae1a..cce4672 100644
--- a/login-utils/login.1
+++ b/login-utils/login.1
@@ -149,6 +149,15 @@ The default value is 5.
.RS 4
The terminal permissions. The default value is 0600.
.RE
+.PP
+\fBTTYGROUP\fR (string)
+.RS 4
+The login tty will be owned by the
+\fBTTYGROUP\fR. The default value is 'tty'. If the \fBTTYGROUP\fR does not exist
+then the ownership of the terminal is set to the user\'s primary group.
+.SP
+The \fBTTYGROUP\fR can be either the name of a group or a numeric group identifier.
+.RE
.SH FILES
.nf
diff --git a/login-utils/login.c b/login-utils/login.c
index 857240d..3d6d73a 100644
--- a/login-utils/login.c
+++ b/login-utils/login.c
@@ -264,13 +264,20 @@ static void open_tty(const char *tty)
static void chown_tty(struct login_context *cxt)
{
- struct group *gr;
+ const char *grname;
uid_t uid = cxt->pwd->pw_uid;
gid_t gid = cxt->pwd->pw_gid;
- gr = getgrnam(TTYGRPNAME);
- if (gr)
- gid = gr->gr_gid;
+ grname = getlogindefs_str("TTYGROUP", TTYGRPNAME);
+ if (grname && *grname) {
+ if (*grname >= 0 && *grname <= 9) /* group by ID */
+ gid = getlogindefs_num("TTYGROUP", gid);
+ else { /* group by name */
+ struct group *gr = getgrnam(grname);
+ if (gr)
+ gid = gr->gr_gid;
+ }
+ }
if (fchown(0, uid, gid)) /* tty */
chown_err(cxt->tty_name, uid, gid);
--
1.7.6.4
--
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