[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.
diff --git a/doc/vtysh.1 b/doc/vtysh.1
index e5fccb1..eb960cd 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 @@
.br
.B vtysh
[
+.B \-E
+] [
+.B \-d
+.I daemon
+]
+] [
.B \-c
.I command
]
@@ -29,13 +35,32 @@
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 @@
.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