[src/netbsd-1-4]: src/usr.bin/su Pull up revision 1.18 (requested by abs):

[he <he%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e41fc01a107c
branches:  netbsd-1-4
changeset: 470373:e41fc01a107c
user:      he <he%NetBSD.org@localhost>
date:      Fri Feb 18 19:31:12 2000 +0000

description:
Pull up revision 1.18 (requested by abs):
  Have su set SU_FROM environment variable, and use to avoid
  incorrect 'use su' warning in root's .login.

diffstat:

 usr.bin/su/su.1 |  17 ++++++++++++-----
 1 files changed, 12 insertions(+), 5 deletions(-)

diffs (53 lines):

diff -r 9cc55404e489 -r e41fc01a107c usr.bin/su/su.1
--- a/usr.bin/su/su.1   Fri Feb 18 19:28:13 2000 +0000
+++ b/usr.bin/su/su.1   Fri Feb 18 19:31:12 2000 +0000
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"    from: @(#)su.1  8.2 (Berkeley) 4/18/94
-.\"    $NetBSD: su.1,v 1.14.4.1 2000/01/08 18:35:58 he Exp $
+.\"    $NetBSD: su.1,v 1.14.4.2 2000/02/18 19:31:12 he Exp $
 .\"
 .Dd April 18, 1994
 .Dt SU 1
@@ -72,8 +72,9 @@
 By default, the environment is unmodified with the exception of
 .Ev USER ,
 .Ev HOME ,
+.Ev SHELL ,
 and
-.Ev SHELL .
+.Ev SU_FROM .
 .Ev HOME
 and
 .Ev SHELL
@@ -81,8 +82,12 @@
 .Ev USER
 is set to the target login, unless the target login has a user ID of 0,
 in which case it is unmodified.
+.Ev SU_FROM
+is set to the caller's login.
 The invoked shell is the target login's.
-This is the traditional behavior of
+With the exception of
+.Ev SU_FROM
+this is the traditional behavior of
 .Nm "" .
 .Pp
 The options are as follows:
@@ -102,11 +107,13 @@
 .Ev SHELL ,
 .Ev PATH ,
 .Ev TERM ,
+.Ev USER ,
 and
-.Ev USER .
+.Ev SU_FROM .
 .Ev HOME
+.Ev SHELL ,
 and
-.Ev SHELL
+.Ev SU_FROM
 are modified as above.
 .Ev USER
 is set to the target login.