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UPDATE.TCL
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2005-04-15
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#!tcl
#
# Update the IP.HTM file at NAT32.COM
#
# Usage: update usercode password
#
# Check args
if {$argc != 2} {
error "Usage: update usercode password"
}
# Get usercode and password
set usercode [lindex $argv 0]
set password [lindex $argv 1]
# Compute the current IP address
set ip [exec url http://nat32.com/php/myip.php]
# Check result
set result [string first "ERROR" "$ip"]
if {$result != "-1"} {
error $ip
}
set result [string first "404" "$ip"]
if {$result != "-1"} {
error "ERROR: file myip.php not found"
}
# We have the current IP
echo Current IP: $ip
# Fetch the ip.htm file
set response [exec ftp "get /public_html/ip.htm ip.htm nat32.com $usercode $password"]
set result [string first "ERROR" "$response"]
if {$result != "-1"} {
error "ERROR: file ip.htm not found"
}
echo File ip.htm downloaded
# Open files
set f_in [open "ip.htm" r]
set f_out [open "update.tmp" w]
# Generate a regular expression for an IP address string
set exp {[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:}
set modified 0
# Replace all IP addresses in the file
while {[gets $f_in line] >= 0} {
if {[regsub $exp $line "$ip:" nline]} {
puts $f_out $nline nonewline
if {$line != $nline} {
set modified 1
}
} else {
puts $f_out $line nonewline
}
}
close $f_in
close $f_out
if {$modified == 1} {
echo "Updating..."
set response [exec ftp "put update.tmp /public_html/ip.htm nat32.com $usercode $password"]
error Done $response
}
echo "File ip.htm is OK"