trap null or empty returns from nslookup

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/branches/release-1.3.0@524 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 7 insertions, 5 deletions

diff --git a/plugins/check_dns.c b/plugins/check_dns.c
index 19649f50..df8359ca 100644
--- a/plugins/check_dns.c
+++ b/plugins/check_dns.c
@@ -136,12 +136,14 @@ main (int argc, char **argv)
                                 /* Strip leading spaces */
                                 for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
                                         /* NOOP */;
-                                address = strscpy (address, temp_buffer);
+                                address = strdup (temp_buffer);
                                 strip (address);
+                                if (address==NULL || strlen(address)==0)
+                                        terminate (STATE_CRITICAL, "DNS CRITICAL - '%s' returned empty host name string", %s);
                                 result = STATE_OK;
                         }
                         else {
-                                output = strscpy (output, "Unknown error (plugin)");
+                                output = strdup ("Unknown error (plugin)");
                                 result = STATE_WARNING;
                         }
 
@@ -176,9 +178,9 @@ main (int argc, char **argv)
 
         /* compare to expected address */
         if (result == STATE_OK && match_expected_address && strcmp(address, expected_address)) {
-                result = STATE_CRITICAL;
-                asprintf(&output, "expected %s but got %s", expected_address, address);
-                }
+                result = STATE_CRITICAL;
+                asprintf(&output, "expected %s but got %s", expected_address, address);
+        }
         
         (void) time (&end_time);