From 6bc02a1f2271e2a4b46322584b8d45704029b161 Mon Sep 17 00:00:00 2001
From: arjen <arjen>
Date: Sat, 27 Oct 2007 08:46:21 +0000
Subject: [PATCH] Select a specific host from a logfile, in case syslogd acts
 as a log server for multiple systems. This adds a new parameter
 (logile/fromhost) to the configuration file.

---
 src/gcm_input/logrunner.cpp | 33 +++++++++++++++++++++++----------
 1 file changed, 23 insertions(+), 10 deletions(-)

diff --git a/src/gcm_input/logrunner.cpp b/src/gcm_input/logrunner.cpp
index 2e610dd..2de9902 100644
--- a/src/gcm_input/logrunner.cpp
+++ b/src/gcm_input/logrunner.cpp
@@ -2,7 +2,7 @@
  * logrunner.c
  * (c) Peter Roozemaal, feb 2003
  *
- * $Id: logrunner.cpp,v 1.3 2007-05-06 08:35:16 arjen Exp $
+ * $Id: logrunner.cpp,v 1.4 2007-10-27 08:46:21 arjen Exp $
  *
  * 1) compile,
  * 2) Add 'logfile' elements to the gnucomo configuration file
@@ -58,6 +58,8 @@ static const char* const usage =
 class LogFile {
    String   name;
    String   type;
+   String   fromhost;
+
    int     fd;
    ino_t   inode;
    off_t   position;
@@ -67,10 +69,11 @@ class LogFile {
    void copy_data();
 
 public:
-   LogFile(String n, String t)
+   LogFile(String n, String t, String fh)
    {
       name = n;
       type = t;
+      fromhost = fh;
       inode     = 0;
       position  = 0;
       fd        = -1;
@@ -78,10 +81,12 @@ public:
 
    LogFile(const LogFile &lf)
    {
-      name    = lf.name;
-      type    = lf.type;
-      fd      = lf.fd;
-      inode   = lf.inode;
+      name     = lf.name;
+      type     = lf.type;
+      fromhost = lf.fromhost;
+
+      fd       = lf.fd;
+      inode    = lf.inode;
       position = lf.position;
       filter   = lf.filter;
    }
@@ -289,10 +294,16 @@ void LogFile::copy_data()
 
                String logline(line);
 
-               // Apply filters to this log entry
+               // See if have to select the host and apply filters to this log entry
 
-               std::list<regex>::iterator f = filter.begin();
                bool filtered_out = false;
+
+               if (fromhost && (fromhost.in(logline) == -1 || fromhost.in(logline) > 20))
+               {
+                  filtered_out = true;
+               }
+
+               std::list<regex>::iterator f = filter.begin();
                while (f != filter.end())
                {
                   if (logline == *f)
@@ -416,6 +427,7 @@ void read_config(gnucomo_config cfg)
 
    String logfilename;
    String logfiletype;
+   String fromhost;
 
    int l = 0;
 
@@ -424,9 +436,10 @@ void read_config(gnucomo_config cfg)
    {
       std::cerr << "Configuration for logfile " << logfilename << "\n";
       logfiletype = cfg.find_parameter("logfile", "type", l);
-      std::cerr << "LogFile " << logfilename << " of type " << logfiletype << "\n";
+      fromhost = cfg.find_parameter("logfile", "fromhost", l);
+      std::cerr << "LogFile " << logfilename << " of type " << logfiletype << " from host " << fromhost << "\n";
 
-      LogFile lf(logfilename, logfiletype);
+      LogFile lf(logfilename, logfiletype, fromhost);
 
       int f = 0;
       String exp  = cfg.find_parameter("logfile", "filter", l, f);
-- 
2.11.0