From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001 From: Cameron Katri Date: Sun, 9 May 2021 14:20:58 -0400 Subject: Import macOS userland adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106 --- system_cmds/login.tproj/login.1 | 186 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) create mode 100644 system_cmds/login.tproj/login.1 (limited to 'system_cmds/login.tproj/login.1') diff --git a/system_cmds/login.tproj/login.1 b/system_cmds/login.tproj/login.1 new file mode 100644 index 0000000..6edef05 --- /dev/null +++ b/system_cmds/login.tproj/login.1 @@ -0,0 +1,186 @@ +.\" Copyright (c) 1980, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)login.1 8.2 (Berkeley) 5/5/94 +.\" $FreeBSD: src/usr.bin/login/login.1,v 1.33 2007/11/30 11:02:36 philip Exp $ +.\" +.Dd September 13, 2006 +.Dt LOGIN 1 +.Os +.Sh NAME +.Nm login +.Nd log into the computer +.Sh SYNOPSIS +.Nm +.Op Fl pq +.Op Fl h Ar hostname +.Op Ar user +.Nm +.Fl f +.Op Fl lpq +.Op Fl h Ar hostname +.Op Ar user Op Ar prog Op Ar args... +.Sh DESCRIPTION +The +.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 +prompts for a user name. +Authentication of users is configurable via +.Xr pam 8 . +Password authentication is the default. +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl f +When a user name is specified, this option indicates that proper +authentication has already been done and that no password need be +requested. +This option may only be used by the super-user or when an already +logged in user is logging in as themselves. +.Pp +With the +.Fl f +option, an alternate program (and any arguments) may be run instead of the +user's default shell. +The program and arguments follows the user name. +.It Fl h +Specify the host from which the connection was received. +It is used by various daemons such as +.Xr telnetd 8 . +This option may only be used by the super-user. +.It Fl l +Tells the program executed by +.Nm +that this is not a login session (by convention, a login session is +signalled to the program with a hyphen as the first character of +.Em argv[0] ; +this option disables that), and prevents it from chdir(2)ing to the user's home directory. +The default is to add the hyphen (this is a login session). +.It Fl p +By default, +.Nm +discards any previous environment. +The +.Fl p +option disables this behavior. +.It Fl q +This forces quiet logins, as if a +.Pa .hushlogin +is present. +.El +.Pp +If the file +.Pa /etc/nologin +exists, +.Nm +dislays its contents to the user and exits. +This is used by +.Xr shutdown 8 +to prevent users from logging in when the system is about to go down. +.Pp +Immediately after logging a user in, +.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 +.Pa .hushlogin +exists in the user's home directory, all of these messages are suppressed. +.Fl q +is specified, all of these messages are suppressed. +This is to simplify logins for non-human users, such as +.Xr uucp 1 . +.Nm +then records an entry in +.Xr utmpx 5 +and the like, and executes the user's command interpreter (or the program +specified on the command line if +.Fl f +is specified). +.Pp +The +.Nm +utility 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 +USER). +.Pp +Some shells may provide a builtin +.Nm +command which is similar or identical to this utility. +Consult the +.Xr builtin 1 +manual page. +.Pp +The +.Nm +utility will submit an audit record when login succeeds or fails. +Failure to determine the current auditing state will +result in an error exit from +.Nm . +.Sh FILES +.Bl -tag -width /var/mail/userXXX -compact +.It Pa /etc/motd +message-of-the-day +.It Pa /etc/nologin +disallows logins +.It Pa /var/run/utmpx +current logins +.It Pa /var/mail/user +system mailboxes +.It Pa \&.hushlogin +makes login quieter +.It Pa /etc/pam.d/login +.Xr pam 8 +configuration file +.It Pa /etc/security/audit_user +user flags for auditing +.It Pa /etc/security/audit_control +global flags for auditing +.El +.Sh SEE ALSO +.Xr builtin 1 , +.Xr chpass 1 , +.Xr newgrp 1 , +.Xr passwd 1 , +.Xr rlogin 1 , +.Xr getpass 3 , +.Xr utmpx 5 , +.Xr environ 7 +.Sh HISTORY +A +.Nm +utility appeared in +.At v6 . -- cgit v1.2.3-56-ge451