added gentoo specific code to keep symlinks in _getinitcommand

server/lib/classes/system.inc.php
added gentoo specific code to keep symlinks as init script. gentoo uses symlinks to start different php-fpm versions, but "realpath" kills these symlinks.

Author: dachris1

server/lib/classes/system.inc.php

@@ -2132,6 +2132,26 @@ function _getinitcommand($servicename, $action, $init_script_directory = '', $ch
 		}
 
 		$full_init_script_path = realpath($init_script_directory.'/'.$servicename);
+    
+    //** Gentoo, keep symlink as init script, but do some checks
+    if(file_exists('/etc/gentoo-release')) {  
+      //* check if init script is symlink
+      if(is_link($init_script_directory.'/'.$servicename)) {                 
+        //* Check init script owner (realpath, symlink is checked later)
+      	if(fileowner($full_init_script_path) !== 0) {
+      		$app->log('Init script '.$full_init_script_path.' not owned by root user',LOGLEVEL_WARN);
+      		return false;
+        }
+        
+        //* full path is symlink
+        $full_init_script_path_symlink = $init_script_directory.'/'.$servicename;
+        
+        //* check if realpath matches symlink
+        if(strpos($full_init_script_path_symlink,$full_init_script_path) == 0) {
+          $full_init_script_path = $full_init_script_path_symlink;
+        }
+      }
+    }
 
 		if($full_init_script_path == '') {
 			$app->log('No init script, we quit here.',LOGLEVEL_WARN);