= -> ==, strcpy -> strncpy from OpenBSD.
update man page. Add usage(). Obtained from: OpenBSD
This commit is contained in:
Philippe Charnier
parent
df0715563d
commit
9c9cb2bffe
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=27605
@ -184,7 +184,7 @@ klogin(pw, instance, localhost, password)
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}
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/* undecipherable: probably didn't have a srvtab on the local host */
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if (kerror = RD_AP_UNDEC) {
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if (kerror == RD_AP_UNDEC) {
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syslog(LOG_NOTICE, "krb_rd_req: (%s)\n", krb_err_txt[kerror]);
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dest_tkt();
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return (1);
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@ -4,15 +4,15 @@
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.Os FreeBSD 1.2
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.Sh NAME
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.Nm login.access
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.Nd Login access control table
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.Nd login access control table
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.Sh DESCRIPTION
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The
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.Nm login.access
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.Nm
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file specifies (user, host) combinations and/or (user, tty)
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combinations for which a login will be either accepted or refused.
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.Pp
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When someone logs in, the
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.Nm login.access
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.Nm
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is scanned for the first entry that
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matches the (user, host) combination, or, in case of non-networked
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logins, the first entry that matches the (user, tty) combination. The
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@ -21,7 +21,7 @@ be accepted or refused.
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.Pp
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Each line of the login access control table has three fields separated by a
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":" character: permission : users : origins
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.Pp
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The first field should be a "+" (access granted) or "-" (access denied)
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character. The second field should be a list of one or more login names,
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group names, or ALL (always matches). The third field should be a list
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@ -30,9 +30,9 @@ names (begin with "."), host addresses, internet network numbers (end
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with "."), ALL (always matches) or LOCAL (matches any string that does
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not contain a "." character). If you run NIS you can use @netgroupname
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in host or user patterns.
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.Pp
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The EXCEPT operator makes it possible to write very compact rules.
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.Pp
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The group file is searched only when a name does not match that of the
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logged-in user. Only groups are matched in which users are explicitly
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listed: the program does not look at a user's primary group id value.
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@ -40,7 +40,7 @@ listed: the program does not look at a user's primary group id value.
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.Bl -tag -width /etc/login.access -compact
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.It Pa /etc/login.access
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The
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.Nm login.access
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.Nm
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file resides in
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.Pa /etc .
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.El
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@ -184,7 +184,7 @@ klogin(pw, instance, localhost, password)
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}
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/* undecipherable: probably didn't have a srvtab on the local host */
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if (kerror = RD_AP_UNDEC) {
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if (kerror == RD_AP_UNDEC) {
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syslog(LOG_NOTICE, "krb_rd_req: (%s)\n", krb_err_txt[kerror]);
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dest_tkt();
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return (1);
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@ -29,28 +29,28 @@
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)login.1 8.1 (Berkeley) 6/9/93
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.\" $Id$
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.\" @(#)login.1 8.2 (Berkeley) 5/5/94
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.\" $Id: login.1,v 1.8 1997/02/22 19:55:57 peter Exp $
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.\"
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.Dd June 9, 1993
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.Dd May 5, 1994
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.Dt LOGIN 1
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.Os BSD 4
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.Sh NAME
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.Nm login
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.Nd log into the computer
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.Sh SYNOPSIS
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.Nm login
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.Nm
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.Op Fl fp
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.Op Fl h Ar hostname
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.Op Ar user
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.Sh DESCRIPTION
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The
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.Nm login
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.Nm
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utility logs users (and pseudo-users) into the computer system.
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.Pp
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If no user is specified, or if a user is specified and authentication
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of the user fails,
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.Nm login
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.Nm
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prompts for a user name.
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Authentication of users is done via passwords.
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.Pp
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@ -73,7 +73,7 @@ It is used by various daemons such as
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This option may only be used by the super-user.
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.It Fl p
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By default,
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.Nm login
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.Nm
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discards any previous environment.
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The
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.Fl p
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@ -83,7 +83,7 @@ option disables this behavior.
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If the file
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.Pa /etc/nologin
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exists,
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.Nm login
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.Nm
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displays its contents to the user and exits.
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This is used by
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.Xr shutdown 8
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@ -92,7 +92,7 @@ to prevent users from logging in when the system is about to go down.
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If the file
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.Pa /etc/login.access
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exists,
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.Nm login
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.Nm
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checks to see if the user and host pair are specifically allowed or denied
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access.
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Login access may also be controlled via the login class, which provides
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@ -101,12 +101,12 @@ allow and deny records based on time, tty and remote host name.
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If the file
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.Pa /etc/fbtab
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exists,
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.Nm login
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.Nm
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changes the protection and ownership of certain devices specified in this
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file.
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.Pp
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Immediately after logging a user in,
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.Nm login
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.Nm
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displays the system copyright notice, the date and time the user last
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logged in, the message of the day as well as other information.
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If the file
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@ -119,9 +119,10 @@ then records an entry in the
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.Xr wtmp 5
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and
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.Xr utmp 5
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files and executes the user's command interpretor.
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files and executes the user's command interpreter.
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.Pp
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Login enters information into the environment (see
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.Nm Login
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enters information into the environment (see
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.Xr environ 7 )
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specifying the user's home directory (HOME), command interpreter (SHELL),
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search path (PATH), terminal type (TERM) and user name (both LOGNAME and
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@ -138,7 +139,7 @@ The standard shells,
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and
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.Xr sh 1 ,
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do not fork before executing the
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.Nm login
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.Nm
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utility.
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.Sh FILES
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.Bl -tag -width /var/mail/userXXX -compact
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@ -154,6 +155,8 @@ disallows logins
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login access control table
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.It Pa /var/run/utmp
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current logins
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.It Pa /var/log/lastlog
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last login account records
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.It Pa /var/log/wtmp
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login account records
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.It Pa /var/mail/user
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@ -174,6 +177,6 @@ makes login quieter
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.Xr nologin 8
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.Sh HISTORY
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A
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.Nm login
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appeared in
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.Nm
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utility appeared in
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.At v6 .
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@ -4,15 +4,15 @@
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.Os FreeBSD 1.2
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.Sh NAME
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.Nm login.access
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.Nd Login access control table
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.Nd login access control table
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.Sh DESCRIPTION
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The
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.Nm login.access
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.Nm
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file specifies (user, host) combinations and/or (user, tty)
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combinations for which a login will be either accepted or refused.
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.Pp
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When someone logs in, the
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.Nm login.access
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.Nm
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is scanned for the first entry that
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matches the (user, host) combination, or, in case of non-networked
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logins, the first entry that matches the (user, tty) combination. The
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@ -21,7 +21,7 @@ be accepted or refused.
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.Pp
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Each line of the login access control table has three fields separated by a
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":" character: permission : users : origins
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.Pp
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The first field should be a "+" (access granted) or "-" (access denied)
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character. The second field should be a list of one or more login names,
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group names, or ALL (always matches). The third field should be a list
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@ -30,9 +30,9 @@ names (begin with "."), host addresses, internet network numbers (end
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with "."), ALL (always matches) or LOCAL (matches any string that does
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not contain a "." character). If you run NIS you can use @netgroupname
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in host or user patterns.
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.Pp
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The EXCEPT operator makes it possible to write very compact rules.
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.Pp
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The group file is searched only when a name does not match that of the
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logged-in user. Only groups are matched in which users are explicitly
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listed: the program does not look at a user's primary group id value.
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@ -40,7 +40,7 @@ listed: the program does not look at a user's primary group id value.
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.Bl -tag -width /etc/login.access -compact
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.It Pa /etc/login.access
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The
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.Nm login.access
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.Nm
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file resides in
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.Pa /etc .
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.El
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@ -38,7 +38,11 @@ static char copyright[] =
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#endif
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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/*
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@ -113,6 +117,7 @@ int klogin __P((struct passwd *, char *, char *, char *));
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#endif
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extern void login __P((struct utmp *));
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static void usage __P((void));
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#define TTYGRPNAME "tty" /* name of group to own ttys */
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#define DEFAULT_BACKOFF 3
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@ -226,9 +231,7 @@ main(argc, argv)
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default:
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if (!uid)
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syslog(LOG_ERR, "invalid flag %c", ch);
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(void)fprintf(stderr,
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"usage: login [-fp] [-h hostname] [username]\n");
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exit(1);
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usage();
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}
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argc -= optind;
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argv += optind;
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@ -318,7 +321,8 @@ main(argc, argv)
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badlogin(tbuf);
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failures = 0;
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}
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(void)strcpy(tbuf, username);
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(void)strncpy(tbuf, username, sizeof tbuf-1);
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tbuf[sizeof tbuf-1] = '\0';
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if ((pwd = getpwnam(username)) != NULL)
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salt = pwd->pw_passwd;
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@ -801,6 +805,12 @@ main(argc, argv)
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err(1, "%s", shell);
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}
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static void
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usage()
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{
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(void)fprintf(stderr, "usage: login [-fp] [-h hostname] [username]\n");
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exit(1);
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}
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/*
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* Allow for authentication style and/or kerberos instance
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