Rewrite script as a select loop rather than as a twin reader/write process.

This allows simple logging of keys sent to a session (turned on with -k).
Also allow specifying the script file flush interval.

1 files changed, 18 insertions, 3 deletions

diff --git a/usr.bin/script/script.1 b/usr.bin/script/script.1
index 6c0f7d6..4acda57 100644
--- a/usr.bin/script/script.1
+++ b/usr.bin/script/script.1
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	@(#)script.1	8.1 (Berkeley) 6/6/93
-.\"	$Id$
+.\"	$Id: script.1,v 1.3 1997/12/29 13:31:46 peter Exp $
 .\"
 .Dd June 6, 1993
 .Dt SCRIPT 1
@@ -41,7 +41,9 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl a
+.Op Fl k
 .Op Fl q
+.Op Fl t Ar time
 .Op Ar file
 .Op Ar command ...
 .Sh DESCRIPTION
@@ -68,16 +70,23 @@ is given,
 will run the specified command with an optional argument vector 
 instead of an interactive shell.
 .Pp
-Option:
-.Bl -tag -width Ds
+Options:
+.Bl -tag -width xxxxxxx
 .It Fl a
 Append the output to
 .Ar file
 or
 .Pa typescript ,
 retaining the prior contents.
+.It Fl k
+Log keys sent to program as well as output.
 .It Fl q
 Run in quiet mode, omit the start and stop status messages.
+.It Fl t Ar time
+Specify time interval between flushing script output file.  A value of 0
+causes
+.Nm
+to flush for every character I/O event.
 .El
 .Pp
 The script ends when the forked shell (or command) exits (a
@@ -136,3 +145,9 @@ This is not what the naive user expects.
 .Pp
 It is not possible to specify a command without also naming the script file
 because of argument parsing compatability issues.
+.Pp
+When running in
+.Fl k
+mode, echo cancelling far from ideal.  The slave terminal mode is checked
+for ECHO mode to check when to avoid manual echo logging.  This does not
+work when in a raw mode where the program being run is doing manual echo.