From ac817c1fc37bd7e831b33f32028005b612eb76eb Mon Sep 17 00:00:00 2001
From: Guido Günther <agx@sigxcpu.org>
Date: Tue, 10 Jun 2014 22:55:54 +0200
Subject: Print userfriendly message if not root

Closes: #751088
---
 whatmaps/command.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'whatmaps')

diff --git a/whatmaps/command.py b/whatmaps/command.py
index 4ca730f..2593398 100755
--- a/whatmaps/command.py
+++ b/whatmaps/command.py
@@ -22,6 +22,7 @@ import glob
 import os
 import logging
 import sys
+import errno
 from optparse import OptionParser
 try:
     import lsb_release
@@ -165,7 +166,14 @@ def main(argv):
         logging.debug("  %s", so)
 
     # Find processes that map them
-    restart_procs = check_maps(get_all_pids(), shared_objects)
+    try:
+        restart_procs = check_maps(get_all_pids(), shared_objects)
+    except IOError as e:
+        if e.errno == errno.EACCES:
+            logging.error("Can't open process maps in '/proc/<pid>/maps', are you root?")
+            return 1
+        else:
+            raise
     logging.debug("Processes that map them:")
     for exe, pids in restart_procs.items():
         logging.debug("  Exe: %s Pids: %s", exe, pids),
-- 
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