diff options
| author | Otto Moerbeek <otto@cvs.openbsd.org> | 2004-05-09 06:07:43 +0000 |
|---|---|---|
| committer | Otto Moerbeek <otto@cvs.openbsd.org> | 2004-05-09 06:07:43 +0000 |
| commit | 138e83855f63338bf2b1a5826360c24c1afd7d1d (patch) | |
| tree | 5f82c7ce33cd0f06c4cc27a5b477a2debe3e08b7 /bin/ksh | |
| parent | 23d32038c454aebfcf199160132412aaa53a7d26 (diff) | |
Document new behavior of $RANDOM. ok deraadt@
Diffstat (limited to 'bin/ksh')
| -rw-r--r-- | bin/ksh/ksh.1 | 21 | ||||
| -rw-r--r-- | bin/ksh/ksh.1tbl | 21 |
2 files changed, 30 insertions, 12 deletions
diff --git a/bin/ksh/ksh.1 b/bin/ksh/ksh.1 index 29624ce5387..e6ec2c7025d 100644 --- a/bin/ksh/ksh.1 +++ b/bin/ksh/ksh.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ksh.1,v 1.69 2004/04/30 06:57:17 jmc Exp $ +.\" $OpenBSD: ksh.1,v 1.70 2004/05/09 06:07:42 otto Exp $ .\" .\" Copyright (c) 1980, 1990, 1993 .\" The Regents of the University of California. All rights reserved. @@ -1557,14 +1557,23 @@ May be unset or .Dv NULL if the shell doesn't know where it is. .It Ev RANDOM -A simple random number generator. +A random number generator. Every time .Ev RANDOM -is referenced, it is assigned the next number in a random number series. -The point in the series can be set by assigning a number to +is referenced, it is assigned the next random number in the range +0\-32767. +By default, +.Xr arc4random 3 +is used to produce values. +If the variable .Ev RANDOM -(see -.Xr rand 3 ) . +is assigned a value, the value is used as seed to +.Xr srand 3 +and subsequent references of +.Ev RANDOM +will use +.Xr rand 3 +to produce values, resulting in a predictable sequence. .It Ev REPLY Default parameter for the .Ic read diff --git a/bin/ksh/ksh.1tbl b/bin/ksh/ksh.1tbl index 7a925f2e39b..dfe71bb29cc 100644 --- a/bin/ksh/ksh.1tbl +++ b/bin/ksh/ksh.1tbl @@ -1,4 +1,4 @@ -.\" $OpenBSD: ksh.1tbl,v 1.69 2004/04/30 06:57:17 jmc Exp $ +.\" $OpenBSD: ksh.1tbl,v 1.70 2004/05/09 06:07:42 otto Exp $ .\" .\" Copyright (c) 1980, 1990, 1993 .\" The Regents of the University of California. All rights reserved. @@ -1557,14 +1557,23 @@ May be unset or .Dv NULL if the shell doesn't know where it is. .It Ev RANDOM -A simple random number generator. +A random number generator. Every time .Ev RANDOM -is referenced, it is assigned the next number in a random number series. -The point in the series can be set by assigning a number to +is referenced, it is assigned the next random number in the range +0\-32767. +By default, +.Xr arc4random 3 +is used to produce values. +If the variable .Ev RANDOM -(see -.Xr rand 3 ) . +is assigned a value, the value is used as seed to +.Xr srand 3 +and subsequent references of +.Ev RANDOM +will use +.Xr rand 3 +to produce values, resulting in a predictable sequence. .It Ev REPLY Default parameter for the .Ic read |