run file checks on socket files also, which is needed for monitoring
socket file permissions and ownership.

Philippe Kueck <projects at unixadm dot org>

--- src/file.c.socket
+++ src/file.c
@@ -145,6 +145,7 @@ time_t file_getTimestamp(char *object, m
   if(! stat(object, &buf)) {
     if(((type == S_IFREG) && S_ISREG(buf.st_mode)) ||
        ((type == S_IFDIR) && S_ISDIR(buf.st_mode)) ||
+       ((type == S_IFSOCK) && S_ISSOCK(buf.st_mode)) ||
        ((type == (S_IFREG|S_IFDIR)) && (S_ISREG(buf.st_mode) ||
 					S_ISDIR(buf.st_mode)))
        ) {
@@ -273,6 +274,22 @@ int file_isFifo(char *fifo) {
 
 
 /**
+ * Check if this is a socket
+ * @param socket A path to the socket to check
+ * @return TRUE if socket exist, otherwise FALSE
+ */
+int file_isSocket(char *socket) {
+  
+  struct stat buf;
+  
+  ASSERT(socket);
+
+  return (stat(socket, &buf) == 0 && S_ISSOCK(buf.st_mode));
+  
+}
+
+
+/**
  * Check if the file exist on the system
  * @file A path to the file to check
  * @return TRUE if file exist otherwise FALSE
@@ -308,8 +325,8 @@ int file_checkStat(char *filename, char
     LogError("%s: Cannot stat the %s '%s' -- %s\n", prog, description, filename, STRERROR);
     return FALSE;
   }
-  if(!S_ISREG(buf.st_mode)) {
-    LogError("%s: The %s '%s' is not a regular file.\n", prog, description,  filename);
+  if(!S_ISREG(buf.st_mode) && !S_ISSOCK(buf.st_mode)) {
+    LogError("%s: The %s '%s' is not a regular file nor a socket.\n", prog, description,  filename);
     return FALSE;
   }
   if(buf.st_uid != geteuid())  {
--- src/file.h.socket
+++ src/file.h
@@ -101,6 +101,14 @@ int file_isFifo(char *fifo);
 
 
 /**
+ * Check if this is a socket
+ * @param socket A path to the socket to check
+ * @return TRUE if socket exist, otherwise FALSE
+ */
+int file_isSocket(char *socket);
+
+
+/**
  * Check if the file exist on the system
  * @file A path to the file to check
  * @return TRUE if file exist otherwise FALSE
--- src/validate.c.socket
+++ src/validate.c
@@ -312,12 +312,12 @@ int check_file(Service_T s) {
                 Event_post(s, Event_Nonexist, STATE_SUCCEEDED, s->action_NONEXIST, "file exist");
         }
 
-        if (!S_ISREG(s->inf->st_mode)) {
-                Event_post(s, Event_Invalid, STATE_FAILED, s->action_INVALID, "is not a regular file");
+        if (!S_ISREG(s->inf->st_mode) && !S_ISSOCK(s->inf->st_mode)) {
+                Event_post(s, Event_Invalid, STATE_FAILED, s->action_INVALID, "is neither a regular file nor a socket");
                 return FALSE;
         } else {
-                DEBUG("'%s' is a regular file\n", s->name);
-                Event_post(s, Event_Invalid, STATE_SUCCEEDED, s->action_INVALID, "is a regular file");
+                DEBUG("'%s' is a regular file or socket\n", s->name);
+                Event_post(s, Event_Invalid, STATE_SUCCEEDED, s->action_INVALID, "is a regular file or socket");
         }
 
         if (s->checksum)