From 3651c7dbc9551d6fba1f454343393889d013c553 Mon Sep 17 00:00:00 2001
From: Stephen L Johnson <sjohnson@monsters.org>
Date: Wed, 20 Jun 2001 21:18:54 +0000
Subject: [PATCH] added patch to check_tcp() to allow amount of data read to be
 specified

---
 src/spong-network.pl | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/spong-network.pl b/src/spong-network.pl
index e93d595..5993db0 100755
--- a/src/spong-network.pl
+++ b/src/spong-network.pl
@@ -17,7 +17,7 @@
 # (2) Converted checks to new plugin mechanism (Stephen Johnson May 28, 1999)
 #     Added user-configurable escalation mechanism
 #
-# $Id: spong-network.pl,v 1.39 2001/06/20 17:10:22 supermathie Exp $
+# $Id: spong-network.pl,v 1.40 2001/06/20 21:18:54 sljohnson Exp $
 
 use Carp;
 use lib "@@LIBDIR@@";
@@ -330,7 +330,7 @@ sub check_simple {
 
 
 # ---------------------------------------------------------------------------
-# &check_tcp( HOST, PORT, DATA, TIMEOUT )
+# &check_tcp( HOST, PORT, DATA, TIMEOUT, MAXLEN )
 #
 # This function will make a connection to a port at a given port, and send a
 # message, it will then return what it gets back to the caller of this
@@ -338,7 +338,7 @@ sub check_simple {
 # ---------------------------------------------------------------------------
 
 sub check_tcp {
-   my( $addr, $port, $data, $timeout ) = @_;
+   my( $addr, $port, $data, $timeout, $maxlen ) = @_;
    my( $iaddr, $paddr, $proto, $line, $ip, $sock, $err );
 
    if( $addr =~ /^\s*((\d+\.){3}\d+)\s*$/ ) {
@@ -350,10 +350,12 @@ sub check_tcp {
       $ip = "$a.$b.$c.$d";
    }
 
-   $timeout = 5 if ( ! defined $timeout || $timeout <= 0);
+   $timeout = 5  if ( ! defined $timeout || $timeout <= 0);
+   $maxlen = 256 if ( ! defined $maxlen  || $maxlen  <= 0);
 
    $err = 0;
    $line = "";
+   $msg = "";
 
    $iaddr = inet_aton( $ip )                    || return -1;
    $paddr = sockaddr_in( $port, $iaddr );
@@ -370,7 +372,11 @@ sub check_tcp {
       connect( SOCK, $paddr )                      || die "connect: $!";
       select((select(SOCK), $| = 1)[0]);
       print SOCK "$data";
-      recv( SOCK, $line, 256, 0 );  # just grab a chunk from the service.
+      while (length($msg) < $maxlen) {
+         recv( SOCK, $line, 256, 0 );
+         $msg .= $line;
+         if (length($line) == 0) { return; } # If the socket is closed, return
+      }
       alarm(0);
       close( SOCK ) || die "close: $!";
    };
@@ -379,7 +385,7 @@ sub check_tcp {
    if ( $@ =~ /timed out/ )  { $err = "check_tcp timed out"; }
    if ( $@ =~ /connect:(.*) at/ )   { $err = $1; }
 
-   return ($err,$line);
+   return ($err,$msg);
 }
 
 
-- 
2.30.2