[vtysh] Never skip authentication, and add support for multiple -c commands

2006-07-27 Andrew J. Schorr <ajschorr@alumni.princeton.edu>

	* vtysh.1: Document new options -d and -E, and note that now multiple
	  -c options may be supplied, with embedded linefeed now supported.
	  In BUGS section, remove warning about vtysh causing a daemon
	  to freeze, since this has been fixed.
	* vtysh_main.c: (usage) Add new -d and -E options.  And note that
	  -c can be used multiple times, possibly with embedded linefeeds.
	  (longopts) Add new -d and -E options.
	  (main) Add new -d and -E options, and create a linked list to
	  support multiple -c options.  Do not call vtysh_connect_all until
	  after vtysh_read_config(config_default) and vtysh_auth have
	  succeeded.  This prevents the vtysh.conf file from configuring
	  any daemons, and it ensures that authentication has been passed
	  before we send any commands to any daemons.  Call vtysh_connect_all
	  with any daemon name supplied with -d.  If it is unable to connect
	  to any daemons, issue an error message and exit immediately.
	  When used in -c mode, call vtysh_execute("enable") before
	  executing the commands in order to match interactive behavior.
	  And detect embedded linefeed chars in -c commands and break them up
	  appropriately.
	* vtysh.h: (vtysh_connect_all) Fix proto to reflect new
	  daemon_name argument, and that it now returns an integer -- the
	  number of daemons to which we were able to connect.
	* vtysh.c: (vtysh_connect_all) Add a new daemon_name argument.
	  If supplied, connect only to that daemon.  And return
	  the number of daemons to which we were able to connect.
	  (vtysh_prompt): Performance enhancement -- make struct utsname
	  static so we call uname to get the hostname only once.

1 files changed, 29 insertions, 8 deletions

diff --git a/doc/vtysh.1 b/doc/vtysh.1
index e5fccb11..eb960cdc 100644
--- a/doc/vtysh.1
+++ b/doc/vtysh.1
@@ -1,4 +1,4 @@
-.TH VTYSH 1 "3 October 2004" "Quagga VTY shell" "Version 0.96.5"
+.TH VTYSH 1 "27 July 2006" "Quagga VTY shell" "Version 0.96.5"
 .SH NAME
 vtysh \- a integrated shell for Quagga routing software
 .SH SYNOPSIS
@@ -9,6 +9,12 @@ vtysh \- a integrated shell for Quagga routing software
 .br
 .B vtysh
 [
+.B \-E
+] [
+.B \-d
+.I daemon
+]
+] [
 .B \-c
 .I command
 ]
@@ -29,13 +35,32 @@ info.
 Specify command to be executed under batch mode. It behaves like -c option in
 any other shell -
 .I command
-is executed and vtysh exits.
+is executed and
+.B vtysh
+exits.
 
-It's useful for gathering info from Quagga routing software from shell scripts
-etc.
+It's useful for gathering info from Quagga routing software or reconfiguring
+daemons from inside shell scripts, etc.
+Note that multiple commands may be executed by using more than one
+-c option and/or embedding linefeed characters inside the
+.I command
+string.
+.IP "\fB\-d, \-\-daemon \fIdaemon_name\fP"
+Specify which daemon to connect to.  By default,
+.B vtysh
+attempts to connect to all Quagga daemons running on the system.  With this
+flag, one can specify a single daemon to connect to instead.  For example,
+specifying '-d ospfd' will connect only to ospfd.  This can be particularly
+useful inside scripts with -c where the command is targeted for a single daemon.
 .IP "\fB\-e, \-\-execute \fIcommand\fP"
 Alias for -c. It's here only for compatibility with Zebra routing software and
 older Quagga versions. This will be removed in future.
+.IP "\fB\-E, \-\-echo\fP"
+When the -c option is being used, this flag will cause the standard
+.B vtysh
+prompt and command to be echoed prior to displaying the results.
+This is particularly useful to separate the results
+when executing multiple commands.
 .IP "\fB\-h, \-\-help\fP"
 Display a usage message on standard output and exit.
 .SH ENVIRONMENT VARIABLES
@@ -63,10 +88,6 @@ options. The definitive document is the Info file \fBQuagga\fR.
 .BR isisd (8),
 .BR zebra (8)
 .SH BUGS
-Running the command which outputs large amount of data through pager ("show ip
-ospf database", "show ip bgp" etc. in big networks) will cause daemon to be
-unresponsive until vtysh returns back to the prompt.
-
 .B vtysh
 eats bugs for breakfast. If you have food for the maintainers try 
 .BI http://bugzilla.quagga.net