Hello Perlmonks,
I am hoping to find some help for an issue I haven't been able to resolve on my own. I am relatively new to Perl but I had to make a socket connect to send a message then wait to receive the acknowledgment message before moving on. However, using the Perl book to guide me I am not able to read the response from the server correctly. All I get is a blank line on the first message and any following message I get the acknowledge message for the previous message.

After 1st transaction:
Received:

After 2nd transaction:
MSA|AA| MSH|^~\&|PFT|D|STAR|D|20110316115753|||JKH1157|P|2.2||||||

What I need to see is the acknowledge message for the particular message that was sent not the previous one. I am pretty sure this is a buffer block issue but still haven't been able to resolve it. I have included my code below. 
#Create Socket
socket(Impact, PF_INET, SOCK_STREAM, getprotobyname('tcp'));
                        
#Build the address of connection
my $internet_addr = inet_aton("axtcnr") 
or die "Couldn't convert axtimpact into internet address\n";
my $paddr = sockaddr_in(6540, $internet_addr);
                        
#Connect                  connect(Impact,$paddr)or die "Couldn't conne
+ct to axtimpact:6540 \n";
                              
select ((select(Impact) , $| = 1)[0]); #enable command buffering
                      
if($msg =~ m{(\013.*\034\015)}smx){
print Impact $1;
}
                         shutdown(Impact,1);
                               #read the remote answer 
my $server_message = do { local $/; <Impact>}; # get the response 
print "recieved: $server_message\n"; 
                      
#Terminate the connection when done
                        close(Impact);

[download]
Any help would be greatly appreciated. Thanks in advance.

In reply to Socket buffer issue by goosesganders

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