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Repeat Perl Sub routine based on Argument

SteffenBaier
Novice

Aug 2, 2012, 4:54 AM

Post #1 of 5 (2161 views)

Repeat Perl Sub routine based on Argument	Can't Post

Hi all,

I am repeat a perl script a defined amount of times based on an ARGV value.

The code so far:

Code

#!/usr/bin/perl  
use Socket; 
 
# IP Address of target phone 
my $phoneip = $ARGV[0]; 
# SIP Extension of target phone 
my $number = $ARGV[1]; 
# Times to repeat the Invite and Cancel 
my $amount = $ARGV[2]; 
 
 
# define counter 
$count = 0; 
 
 
 
while ($count < $amount) { 
 
SendSIPTo("$phoneip"); # IP of the phone 
 
#This section is simply to display the Call Setup visually in the command line# 
# and can be completely removed as it is for displaying the Information only# 
 
print "\n"; 
print "IP Address of Phone to be called: $phoneip\n"; 
print "\n"; 
print "Number that the Phone should call: $number\n"; 
print "\n"; 
print "Unique Call ID: $tm\n"; 
print "\n"; 
print "Times this has been done $count times"; 
print "\n"; 
 
 
##################################### 
#This section creates the SIP INVITE# 
##################################### 
 
sub SendSIPTo { 
$phone_ip = shift; 
 
$MESG1="INVITE sip:$tm\@$phone_ip SIP/2.0 
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926 
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea 
To: <sip:\$number\@$phone_ip> 
Call-ID:  $tm 
CSeq: 1 INVITE 
Contact: sip:10.252.75.119:5060 
Max-Forwards: 10 
Content-Type: application/sdp 
#INVITE-To: <sip:$number\@10.252.75.119>"; 
 
$proto = getprotobyname('udp'); 
socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ; 
$iaddr = inet_aton("0.0.0.0"); 
$paddr = sockaddr_in(5060, $iaddr); 
bind(SOCKET, $paddr) ; 
$port=5060; 
$hisiaddr = inet_aton($phone_ip) ; 
$hispaddr = sockaddr_in($port, $hisiaddr); 
send(SOCKET, $MESG1, 0,$hispaddr ) || warn "send $host $!\n"; 
 
 
# Wait 2 seconds 
sleep(2); 
 
##################################### 
#This section creates the SIP CANCEL# 
##################################### 
 
$MESG2="CANCEL sip:$tm\@$phone_ip SIP/2.0 
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926 
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea 
To: <sip:\$number\@$phone_ip> 
Call-ID:  $tm 
CSeq: 1 CANCEL 
Contact: sip:10.252.75.119:5060 
Max-Forwards: 10 
Content-Type: application/sdp 
#INVITE-To: <sip:$number\@10.252.75.119>"; 
 
 
$proto = getprotobyname('udp'); 
socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ; 
$iaddr = inet_aton("0.0.0.0"); 
$paddr = sockaddr_in(5060, $iaddr); 
bind(SOCKET, $paddr) ; 
$port=5060; 
$hisiaddr = inet_aton($phone_ip) ; 
$hispaddr = sockaddr_in($port, $hisiaddr); 
send(SOCKET, $MESG2, 0,$hispaddr ) || warn "send $host $!\n"; 
 
 
} 
$count++;  
}

The part that is just printed to the screen works and is repeated and the count amount also works but the sub routine is only actioned once.

Any little tips for a perl beginner ;-)

THX

Steff

(This post was edited by SteffenBaier on Aug 2, 2012, 8:07 AM)

Laurent_R
Veteran / Moderator

Aug 2, 2012, 5:04 AM

Post #2 of 5 (2160 views)

Re: [SteffenBaier] Repeat Perl Sub routine based on Argument [In reply to]	Can't Post

It looks like you are defining the subroutine within the while loop. Move this definition afther the closing curly brace of the while loop.

SteffenBaier
Novice

Aug 2, 2012, 5:28 AM

Post #3 of 5 (2158 views)

Re: [Laurent_R] Repeat Perl Sub routine based on Argument [In reply to]	Can't Post

Hi Laurent,

its actually the subroutine part I would like to repeat the ARGV defined amount. I am not to bothered about the PRINT part.

Any more / different ideas ?

I tried to move the Subroutine between the last two } but is still only prints the PRINT part and actions the subroutine once and then repeats the PRINT part for the defined amount.

Steff

FishMonger
Veteran / Moderator

Aug 2, 2012, 7:36 AM

Post #4 of 5 (2152 views)

Re: [SteffenBaier] Repeat Perl Sub routine based on Argument [In reply to]	Can't Post

I fixed some of the problems in your code, but there are more that you should work on.

Try this:

Code

#!/usr/bin/perl 
 
use strict; 
use warnings; 
use Socket;  
  
# IP Address of target phone  
my $phoneip = $ARGV[0];  
# SIP Extension of target phone  
my $number = $ARGV[1];  
# Times to repeat the Invite and Cancel  
my $amount = $ARGV[2];  
  
# Random Number to be used for unique call ID and calling Phone Number  
my $tm       = time();  
  
#This section is simply to display the Call Setup visually in the command line#  
# and can be completely removed as it is for displaying the Information only#  
  
print "IP Address of Phone to be called: $phoneip\n\n"; 
print "Number that the Phone should call: $number\n\n"; 
print "Unique Call ID: $tm\n\n"; 
print "This will been done $amount times\n\n"; 
 
  
for (1..$amount) {  
     
    SendSIPTo($phoneip); # IP of the phone 
 
} 
 
 
sub SendSIPTo { 
 
    my $phone_ip = shift; 
    my $host = '0.0.0.0.0'; 
 
#####################################  
#This section creates the SIP INVITE#  
#####################################  
  
    my $MESG1="INVITE sip:$tm\@$phone_ip SIP/2.0  
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926  
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea  
To: <sip:\$number\@$phone_ip>  
Call-ID:  $tm  
CSeq: 1 INVITE  
Contact: sip:10.252.75.119:5060  
Max-Forwards: 10  
Content-Type: application/sdp  
#INVITE-To: <sip:$number\@10.252.75.119>";  
  
    my $proto = getprotobyname('udp');  
    socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ;  
    my $iaddr = inet_aton("0.0.0.0");  
    my $paddr = sockaddr_in(5060, $iaddr);  
    bind(SOCKET, $paddr) ;  
    my $port=5060;  
    my $hisiaddr = inet_aton($phone_ip) ;  
    my $hispaddr = sockaddr_in($port, $hisiaddr);  
    send(SOCKET, $MESG1, 0,$hispaddr ) || warn "send $host $!\n";  
      
      
    # Wait 2 seconds  
    sleep(2);  
  
#####################################  
#This section creates the SIP CANCEL#  
#####################################  
  
    my $MESG2="CANCEL sip:$tm\@$phone_ip SIP/2.0  
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926  
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea  
To: <sip:\$number\@$phone_ip>  
Call-ID:  $tm  
CSeq: 1 CANCEL  
Contact: sip:10.252.75.119:5060  
Max-Forwards: 10  
Content-Type: application/sdp  
#INVITE-To: <sip:$number\@10.252.75.119>";  
  
  
    $proto = getprotobyname('udp');  
    socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ;  
    $iaddr = inet_aton("0.0.0.0");  
    $paddr = sockaddr_in(5060, $iaddr);  
    bind(SOCKET, $paddr) ;  
    $port=5060;  
    $hisiaddr = inet_aton($phone_ip) ;  
    $hispaddr = sockaddr_in($port, $hisiaddr);  
    send(SOCKET, $MESG2, 0,$hispaddr ) || warn "send $host $!\n";  
 
}

SteffenBaier
Novice

Aug 2, 2012, 8:03 AM

Post #5 of 5 (2146 views)

Re: [FishMonger] Repeat Perl Sub routine based on Argument [In reply to]	Can't Post

Hi FishMonger,

thanks for this !

I had my own little "bug" within it as I use the $tm to get the linux time in order to have a unique number that can be used as the call id and also as a simulated Phone Number.

Using this before the "loop" will keep the same value and the phone will reject subsequent invites due the same value as the previous.

I changed it to this and it is working for my own needs

Code

#!/usr/bin/perl  
  
use strict;  
use warnings;  
use Socket;   
   
# IP Address of target phone   
my $phoneip = $ARGV[0];   
# SIP Extension of target phone   
my $number = $ARGV[1];   
# Times to repeat the Invite and Cancel   
my $amount = $ARGV[2];   
   
# Random Number to be used for unique call ID and calling Phone Number   
my $tm       = time();   
 
################################################################################# 
# This section is simply to display the Call Setup visually in the command line	#   
# and can be completely removed as it is for displaying the Information only	#   
################################################################################# 
   
print "\n"; 
print "IP Address of Phone to be called: $phoneip\n\n";  
print "Number that the Phone should call: $number\n\n";  
# print "Unique Call ID: $tm\n\n";  
print "This will been done $amount times\n\n";  
  
   
for (1..$amount) {   
      
    SendSIPTo($phoneip); # IP of the phone  
  
}  
  
  
sub SendSIPTo {  
  
    my $phone_ip = shift;  
    my $host = '10.252.32.100';  
	# Random Number to be used for unique call ID and calling Phone Number   
	my $tm       = time();   
 
print "Unique Call ID: $tm\n\n";  
	 
#####################################   
#This section creates the SIP INVITE#   
#####################################   
   
    my $MESG1="INVITE sip:$tm\@$phone_ip SIP/2.0   
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926   
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea   
To: <sip:\$number\@$phone_ip>   
Call-ID:  $tm   
CSeq: 1 INVITE   
Contact: sip:10.252.75.119:5060   
Max-Forwards: 10   
Content-Type: application/sdp   
#INVITE-To: <sip:$number\@10.252.75.119>";   
   
    my $proto = getprotobyname('udp');   
    socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ;   
    my $iaddr = inet_aton("0.0.0.0");   
    my $paddr = sockaddr_in(5060, $iaddr);   
    bind(SOCKET, $paddr) ;   
    my $port=5060;   
    my $hisiaddr = inet_aton($phone_ip) ;   
    my $hispaddr = sockaddr_in($port, $hisiaddr);   
    send(SOCKET, $MESG1, 0,$hispaddr ) || warn "send $host $!\n";   
       
       
    # Wait 2 seconds   
    sleep(2);   
   
#####################################   
#This section creates the SIP CANCEL#   
#####################################   
   
    my $MESG2="CANCEL sip:$tm\@$phone_ip SIP/2.0   
Via: SIP/2.0/UDP 10.252.75.119;branch=z9hG4bK13579926   
From: \"Asterisk\" <sip:$tm\@10.252.75.119>;tag=as370e68ea   
To: <sip:\$number\@$phone_ip>   
Call-ID:  $tm   
CSeq: 1 CANCEL   
Contact: sip:10.252.75.119:5060   
Max-Forwards: 10   
Content-Type: application/sdp   
#INVITE-To: <sip:$number\@10.252.75.119>";   
   
   
    $proto = getprotobyname('udp');   
    socket(SOCKET, PF_INET, SOCK_DGRAM, $proto) ;   
    $iaddr = inet_aton("0.0.0.0");   
    $paddr = sockaddr_in(5060, $iaddr);   
    bind(SOCKET, $paddr) ;   
    $port=5060;   
    $hisiaddr = inet_aton($phone_ip) ;   
    $hispaddr = sockaddr_in($port, $hisiaddr);   
    send(SOCKET, $MESG2, 0,$hispaddr ) || warn "send $host $!\n";   
	 
	# Wait 2 seconds   
    sleep(2);   
  
}

I may work on the actual output so wireshark can recognize it as a SIP package but at present it works for what I had in mind.

Above simply calls a phone and then hangs up in order to get the missed calls counter up.

THX

Steffen

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