added functions to utils_base:

  np_check_if_root() - returns nonzero if geteuid()==0
  np_warn_if_not_root() - uses the above to print an informative warning
added uses of these functions to check_dhcp and check_icmp.


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1718 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/utils_base.h b/lib/utils_base.h
index b722d0ec..bda76595 100644
--- a/lib/utils_base.h
+++ b/lib/utils_base.h
@@ -43,4 +43,11 @@ void die (int, const char *, ...) __attribute__((noreturn,format(printf, 2, 3)))
 #define NP_RANGE_UNPARSEABLE 1
 #define NP_WARN_WITHIN_CRIT 2
 
+/* a simple check to see if we're running as root.  
+ * returns zero on failure, nonzero on success */
+int np_check_if_root(void);
+/* and a helpful wrapper around that.  it returns the same status
+ * code from the above function, in case it's helpful for testing */
+int np_warn_if_not_root(void);
+
 #endif /* _UTILS_BASE_ */