If SElinux is enabled, log the context on startup.

--- httpd-2.0.54/server/core.c.selinux
+++ httpd-2.0.54/server/core.c
@@ -50,6 +50,8 @@
 #include "mod_proxy.h"
 #include "ap_listen.h"
 
+#include <selinux/selinux.h>
+
 /* LimitRequestBody handling */
 #define AP_LIMIT_REQ_BODY_UNSET         ((apr_off_t) -1)
 #define AP_DEFAULT_LIMIT_REQ_BODY       ((apr_off_t) 0)
@@ -4337,6 +4339,26 @@
     }
 #endif
 
+    {
+        static int already_warned = 0;
+        int is_enabled = is_selinux_enabled() > 0;
+        
+        if (is_enabled) {
+            security_context_t con;
+            
+            if (getcon(&con) == 0) {
+                
+                ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, NULL,
+                             "SELinux policy enabled; "
+                             "httpd running as context %s", con);
+                
+                already_warned = 1;
+                
+                freecon(con);
+            }
+        }
+    }
+
     return OK;
 }
 
--- httpd-2.0.54/configure.in.selinux
+++ httpd-2.0.54/configure.in
@@ -294,6 +294,8 @@
 timegm \
 )
 
+AC_SEARCH_LIBS(is_selinux_enabled, selinux)
+
 dnl ## Check for the tm_gmtoff field in struct tm to get the timezone diffs
 AC_CACHE_CHECK([for tm_gmtoff in struct tm], ac_cv_struct_tm_gmtoff,
 [AC_TRY_COMPILE([#include <sys/types.h>