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authorcharnier <charnier@FreeBSD.org>1997-07-22 07:39:43 +0000
committercharnier <charnier@FreeBSD.org>1997-07-22 07:39:43 +0000
commitf14112b4c134a5852fee28531c399c2877a8ad5c (patch)
tree8ec7d2d10db2b5e4e0f361b4ce2ef0607902ba91 /usr.bin
parent651e4c77827af8a163183a41586f11242d15fd12 (diff)
downloadFreeBSD-src-f14112b4c134a5852fee28531c399c2877a8ad5c.zip
FreeBSD-src-f14112b4c134a5852fee28531c399c2877a8ad5c.tar.gz
= -> ==, strcpy -> strncpy from OpenBSD.
update man page. Add usage(). Obtained from: OpenBSD
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/login/klogin.c2
-rw-r--r--usr.bin/login/login.135
-rw-r--r--usr.bin/login/login.access.514
-rw-r--r--usr.bin/login/login.c18
4 files changed, 41 insertions, 28 deletions
diff --git a/usr.bin/login/klogin.c b/usr.bin/login/klogin.c
index 4263786..6e30949 100644
--- a/usr.bin/login/klogin.c
+++ b/usr.bin/login/klogin.c
@@ -184,7 +184,7 @@ klogin(pw, instance, localhost, password)
}
/* undecipherable: probably didn't have a srvtab on the local host */
- if (kerror = RD_AP_UNDEC) {
+ if (kerror == RD_AP_UNDEC) {
syslog(LOG_NOTICE, "krb_rd_req: (%s)\n", krb_err_txt[kerror]);
dest_tkt();
return (1);
diff --git a/usr.bin/login/login.1 b/usr.bin/login/login.1
index e0a4f02..f3f7852 100644
--- a/usr.bin/login/login.1
+++ b/usr.bin/login/login.1
@@ -29,28 +29,28 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.\" @(#)login.1 8.1 (Berkeley) 6/9/93
-.\" $Id$
+.\" @(#)login.1 8.2 (Berkeley) 5/5/94
+.\" $Id: login.1,v 1.8 1997/02/22 19:55:57 peter Exp $
.\"
-.Dd June 9, 1993
+.Dd May 5, 1994
.Dt LOGIN 1
.Os BSD 4
.Sh NAME
.Nm login
.Nd log into the computer
.Sh SYNOPSIS
-.Nm login
+.Nm
.Op Fl fp
.Op Fl h Ar hostname
.Op Ar user
.Sh DESCRIPTION
The
-.Nm login
+.Nm
utility logs users (and pseudo-users) into the computer system.
.Pp
If no user is specified, or if a user is specified and authentication
of the user fails,
-.Nm login
+.Nm
prompts for a user name.
Authentication of users is done via passwords.
.Pp
@@ -73,7 +73,7 @@ It is used by various daemons such as
This option may only be used by the super-user.
.It Fl p
By default,
-.Nm login
+.Nm
discards any previous environment.
The
.Fl p
@@ -83,7 +83,7 @@ option disables this behavior.
If the file
.Pa /etc/nologin
exists,
-.Nm login
+.Nm
displays its contents to the user and exits.
This is used by
.Xr shutdown 8
@@ -92,7 +92,7 @@ to prevent users from logging in when the system is about to go down.
If the file
.Pa /etc/login.access
exists,
-.Nm login
+.Nm
checks to see if the user and host pair are specifically allowed or denied
access.
Login access may also be controlled via the login class, which provides
@@ -101,12 +101,12 @@ allow and deny records based on time, tty and remote host name.
If the file
.Pa /etc/fbtab
exists,
-.Nm login
+.Nm
changes the protection and ownership of certain devices specified in this
file.
.Pp
Immediately after logging a user in,
-.Nm login
+.Nm
displays the system copyright notice, the date and time the user last
logged in, the message of the day as well as other information.
If the file
@@ -119,9 +119,10 @@ then records an entry in the
.Xr wtmp 5
and
.Xr utmp 5
-files and executes the user's command interpretor.
+files and executes the user's command interpreter.
.Pp
-Login enters information into the environment (see
+.Nm Login
+enters information into the environment (see
.Xr environ 7 )
specifying the user's home directory (HOME), command interpreter (SHELL),
search path (PATH), terminal type (TERM) and user name (both LOGNAME and
@@ -138,7 +139,7 @@ The standard shells,
and
.Xr sh 1 ,
do not fork before executing the
-.Nm login
+.Nm
utility.
.Sh FILES
.Bl -tag -width /var/mail/userXXX -compact
@@ -154,6 +155,8 @@ disallows logins
login access control table
.It Pa /var/run/utmp
current logins
+.It Pa /var/log/lastlog
+last login account records
.It Pa /var/log/wtmp
login account records
.It Pa /var/mail/user
@@ -174,6 +177,6 @@ makes login quieter
.Xr nologin 8
.Sh HISTORY
A
-.Nm login
-appeared in
+.Nm
+utility appeared in
.At v6 .
diff --git a/usr.bin/login/login.access.5 b/usr.bin/login/login.access.5
index 201c185..80c9afa 100644
--- a/usr.bin/login/login.access.5
+++ b/usr.bin/login/login.access.5
@@ -4,15 +4,15 @@
.Os FreeBSD 1.2
.Sh NAME
.Nm login.access
-.Nd Login access control table
+.Nd login access control table
.Sh DESCRIPTION
The
-.Nm login.access
+.Nm
file specifies (user, host) combinations and/or (user, tty)
combinations for which a login will be either accepted or refused.
.Pp
When someone logs in, the
-.Nm login.access
+.Nm
is scanned for the first entry that
matches the (user, host) combination, or, in case of non-networked
logins, the first entry that matches the (user, tty) combination. The
@@ -21,7 +21,7 @@ be accepted or refused.
.Pp
Each line of the login access control table has three fields separated by a
":" character: permission : users : origins
-
+.Pp
The first field should be a "+" (access granted) or "-" (access denied)
character. The second field should be a list of one or more login names,
group names, or ALL (always matches). The third field should be a list
@@ -30,9 +30,9 @@ names (begin with "."), host addresses, internet network numbers (end
with "."), ALL (always matches) or LOCAL (matches any string that does
not contain a "." character). If you run NIS you can use @netgroupname
in host or user patterns.
-
+.Pp
The EXCEPT operator makes it possible to write very compact rules.
-
+.Pp
The group file is searched only when a name does not match that of the
logged-in user. Only groups are matched in which users are explicitly
listed: the program does not look at a user's primary group id value.
@@ -40,7 +40,7 @@ listed: the program does not look at a user's primary group id value.
.Bl -tag -width /etc/login.access -compact
.It Pa /etc/login.access
The
-.Nm login.access
+.Nm
file resides in
.Pa /etc .
.El
diff --git a/usr.bin/login/login.c b/usr.bin/login/login.c
index 77edbbf..ec6ed39 100644
--- a/usr.bin/login/login.c
+++ b/usr.bin/login/login.c
@@ -38,7 +38,11 @@ static char copyright[] =
#endif
#ifndef lint
+#if 0
static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94";
+#endif
+static const char rcsid[] =
+ "$Id$";
#endif /* not lint */
/*
@@ -113,6 +117,7 @@ int klogin __P((struct passwd *, char *, char *, char *));
#endif
extern void login __P((struct utmp *));
+static void usage __P((void));
#define TTYGRPNAME "tty" /* name of group to own ttys */
#define DEFAULT_BACKOFF 3
@@ -226,9 +231,7 @@ main(argc, argv)
default:
if (!uid)
syslog(LOG_ERR, "invalid flag %c", ch);
- (void)fprintf(stderr,
- "usage: login [-fp] [-h hostname] [username]\n");
- exit(1);
+ usage();
}
argc -= optind;
argv += optind;
@@ -318,7 +321,8 @@ main(argc, argv)
badlogin(tbuf);
failures = 0;
}
- (void)strcpy(tbuf, username);
+ (void)strncpy(tbuf, username, sizeof tbuf-1);
+ tbuf[sizeof tbuf-1] = '\0';
if ((pwd = getpwnam(username)) != NULL)
salt = pwd->pw_passwd;
@@ -801,6 +805,12 @@ main(argc, argv)
err(1, "%s", shell);
}
+static void
+usage()
+{
+ (void)fprintf(stderr, "usage: login [-fp] [-h hostname] [username]\n");
+ exit(1);
+}
/*
* Allow for authentication style and/or kerberos instance
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