Merge pull request #1907 from RincewindsHat/fix/repair_test_pipeline

Implement option for check_snmp to ignore mib parsing errors (to fix test pipeline)

2 files changed, 76 insertions, 55 deletions

diff --git a/plugins/check_snmp.c b/plugins/check_snmp.c
index 04dc6c6..2acada2 100644
--- a/plugins/check_snmp.c
+++ b/plugins/check_snmp.c
@@ -65,6 +65,7 @@ const char *email = "devel@monitoring-plugins.org";
 #define L_RATE_MULTIPLIER CHAR_MAX+2
 #define L_INVERT_SEARCH CHAR_MAX+3
 #define L_OFFSET CHAR_MAX+4
+#define L_IGNORE_MIB_PARSING_ERRORS CHAR_MAX+5
 
 /* Gobble to string - stop incrementing c when c[0] match one of the
  * characters in s */
@@ -159,6 +160,7 @@ char* ip_version = "";
 double multiplier = 1.0;
 char *fmtstr = "";
 char buffer[DEFAULT_BUFFER_SIZE];
+bool ignore_mib_parsing_errors = false;
 
 static char *fix_snmp_range(char *th)
 {
@@ -306,42 +308,55 @@ main (int argc, char **argv)
         }
 
         /* 10 arguments to pass before context and authpriv options + 1 for host and numoids. Add one for terminating NULL */
-        command_line = calloc (10 + numcontext + numauthpriv + 1 + numoids + 1, sizeof (char *));
-        command_line[0] = snmpcmd;
-        command_line[1] = strdup ("-Le");
-        command_line[2] = strdup ("-t");
-        xasprintf (&command_line[3], "%d", timeout_interval);
-        command_line[4] = strdup ("-r");
-        xasprintf (&command_line[5], "%d", retries);
-        command_line[6] = strdup ("-m");
-        command_line[7] = strdup (miblist);
-        command_line[8] = "-v";
-        command_line[9] = strdup (proto);
+
+        unsigned index = 0;
+        command_line = calloc (11 + numcontext + numauthpriv + 1 + numoids + 1, sizeof (char *));
+
+        command_line[index++] = snmpcmd;
+        command_line[index++] = strdup ("-Le");
+        command_line[index++] = strdup ("-t");
+        xasprintf (&command_line[index++], "%d", timeout_interval);
+        command_line[index++] = strdup ("-r");
+        xasprintf (&command_line[index++], "%d", retries);
+        command_line[index++] = strdup ("-m");
+        command_line[index++] = strdup (miblist);
+        command_line[index++] = "-v";
+        command_line[index++] = strdup (proto);
+
+        xasprintf(&cl_hidden_auth, "%s -Le -t %d -r %d -m %s -v %s",
+                snmpcmd, timeout_interval, retries, strlen(miblist) ? miblist : "''", proto);
+
+        if (ignore_mib_parsing_errors) {
+                command_line[index++] = "-Pe";
+                xasprintf(&cl_hidden_auth, "%s -Pe", cl_hidden_auth);
+        }
+
 
         for (i = 0; i < numcontext; i++) {
-                command_line[10 + i] = contextargs[i];
+                command_line[index++] = contextargs[i];
         }
 
         for (i = 0; i < numauthpriv; i++) {
-                command_line[10 + numcontext + i] = authpriv[i];
+                command_line[index++] = authpriv[i];
         }
 
-        xasprintf (&command_line[10 + numcontext + numauthpriv], "%s:%s", server_address, port);
+        xasprintf (&command_line[index++], "%s:%s", server_address, port);
 
-        /* This is just for display purposes, so it can remain a string */
-        xasprintf(&cl_hidden_auth, "%s -Le -t %d -r %d -m %s -v %s %s %s %s:%s",
-                snmpcmd, timeout_interval, retries, strlen(miblist) ? miblist : "''", proto, "[context]", "[authpriv]",
-                server_address, port);
+        xasprintf(&cl_hidden_auth, "%s [context] [authpriv] %s:%s",
+         cl_hidden_auth,
+         server_address,
+         port);
 
         for (i = 0; i < numoids; i++) {
-                command_line[10 + numcontext + numauthpriv + 1 + i] = oids[i];
+                command_line[index++] = oids[i];
                 xasprintf(&cl_hidden_auth, "%s %s", cl_hidden_auth, oids[i]);
         }
 
-        command_line[10 + numcontext + numauthpriv + 1 + numoids] = NULL;
+        command_line[index++] = NULL;
 
-        if (verbose)
+        if (verbose) {
                 printf ("%s\n", cl_hidden_auth);
+        }
 
         /* Set signal handling and alarm */
         if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR) {
@@ -708,6 +723,7 @@ process_arguments (int argc, char **argv)
                 {"ipv6", no_argument, 0, '6'},
                 {"multiplier", required_argument, 0, 'M'},
                 {"fmtstr", required_argument, 0, 'f'},
+                {"ignore-mib-parsing-errors", no_argument, false, L_IGNORE_MIB_PARSING_ERRORS},
                 {0, 0, 0, 0}
         };
 
@@ -974,6 +990,8 @@ process_arguments (int argc, char **argv)
                                 fmtstr=optarg;
                         }
                         break;
+                case L_IGNORE_MIB_PARSING_ERRORS:
+                        ignore_mib_parsing_errors = true;
                 }
         }
 
@@ -1307,6 +1325,9 @@ print_help (void)
         printf (" %s\n", "-O, --perf-oids");
         printf ("    %s\n", _("Label performance data with OIDs instead of --label's"));
 
+        printf (" %s\n", "--ignore-mib-parsing-errors");
+        printf ("    %s\n", _("Tell snmpget to not print errors encountered when parsing MIB files"));
+
         printf (UT_VERBOSE);
 
         printf ("\n");
diff --git a/plugins/t/check_snmp.t b/plugins/t/check_snmp.t
index f2f218f..576cc50 100644
--- a/plugins/t/check_snmp.t
+++ b/plugins/t/check_snmp.t
@@ -26,22 +26,22 @@ $res = NPTest->testCmd( "./check_snmp -t 1" );
 is( $res->return_code, 3, "No host name" );
 is( $res->output, "No host specified" );
 
-$res = NPTest->testCmd( "./check_snmp -H fakehostname" );
+$res = NPTest->testCmd( "./check_snmp -H fakehostname --ignore-mib-parsing-errors" );
 is( $res->return_code, 3, "No OIDs specified" );
 is( $res->output, "No OIDs specified" );
 
-$res = NPTest->testCmd( "./check_snmp -H fakehost -o oids -P 3 -U not_a_user --seclevel=rubbish" );
+$res = NPTest->testCmd( "./check_snmp -H fakehost --ignore-mib-parsing-errors -o oids -P 3 -U not_a_user --seclevel=rubbish" );
 is( $res->return_code, 3, "Invalid seclevel" );
 like( $res->output, "/check_snmp: Invalid seclevel - rubbish/" );
 
-$res = NPTest->testCmd( "./check_snmp -H fakehost -o oids -P 3c" );
+$res = NPTest->testCmd( "./check_snmp -H fakehost --ignore-mib-parsing-errors -o oids -P 3c" );
 is( $res->return_code, 3, "Invalid protocol" );
 like( $res->output, "/check_snmp: Invalid SNMP version - 3c/" );
 
 SKIP: {
     skip "no snmp host defined", 50 if ( ! $host_snmp );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -w 1: -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -w 1: -c 1:");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying uptime" );
     like($res->output, '/^SNMP OK - (\d+)/', "String contains SNMP OK");
     $res->output =~ /^SNMP OK - (\d+)/;
@@ -51,111 +51,111 @@ SKIP: {
 
 
     # some more threshold tests
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c 1");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c 1");
     cmp_ok( $res->return_code, '==', 2, "Threshold test -c 1" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c 1:");
     cmp_ok( $res->return_code, '==', 0, "Threshold test -c 1:" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c ~:1");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c ~:1");
     cmp_ok( $res->return_code, '==', 2, "Threshold test -c ~:1" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c 1:10");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c 1:10");
     cmp_ok( $res->return_code, '==', 2, "Threshold test -c 1:10" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c \@1:10");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c \@1:10");
     cmp_ok( $res->return_code, '==', 0, "Threshold test -c \@1:10" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c 10:1");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c 10:1");
     cmp_ok( $res->return_code, '==', 0, "Threshold test -c 10:1" );
 
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o .1.3.6.1.2.1.1.3.0 -w 1: -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o .1.3.6.1.2.1.1.3.0 -w 1: -c 1:");
     cmp_ok( $res->return_code, '==', 0, "Test with numeric OID (no mibs loaded)" );
     like($res->output, '/^SNMP OK - \d+/', "String contains SNMP OK");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysDescr.0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysDescr.0");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying sysDescr" );
     unlike($res->perf_output, '/sysDescr/', "Perfdata doesn't contain string values");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysDescr.0,system.sysDescr.0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysDescr.0,system.sysDescr.0");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying two string OIDs, comma-separated" );
     like($res->output, '/^SNMP OK - /', "String contains SNMP OK");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysDescr.0 -o system.sysDescr.0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysDescr.0 -o system.sysDescr.0");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying two string OIDs, repeated option" );
     like($res->output, '/^SNMP OK - /', "String contains SNMP OK");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w 1:1 -c 1:1");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w 1:1 -c 1:1");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying hrSWRunIndex.1" );
     like($res->output, '/^SNMP OK - 1\s.*$/', "String fits SNMP OK and output format");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w 0   -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w 0   -c 1:");
     cmp_ok( $res->return_code, '==', 1, "Exit WARNING when querying hrSWRunIndex.1 and warn-th doesn't apply " );
     like($res->output, '/^SNMP WARNING - \*1\*\s.*$/', "String matches SNMP WARNING and output format");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w  :0 -c 0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w  :0 -c 0");
     cmp_ok( $res->return_code, '==', 2, "Exit CRITICAL when querying hrSWRunIndex.1 and crit-th doesn't apply" );
     like($res->output, '/^SNMP CRITICAL - \*1\*\s.*$/', "String matches SNMP CRITICAL and output format");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o ifIndex.2,ifIndex.1 -w 1:2 -c 1:2");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o ifIndex.2,ifIndex.1 -w 1:2 -c 1:2");
     cmp_ok( $res->return_code, '==', 0, "Checking two OIDs at once" );
     like($res->output, "/^SNMP OK - 2 1/", "Got two values back" );
     like( $res->perf_output, "/ifIndex.2=2/", "Got 1st perf data" );
     like( $res->perf_output, "/ifIndex.1=1/", "Got 2nd perf data" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o ifIndex.2,ifIndex.1 -w 1:2,1:2 -c 2:2,2:2");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o ifIndex.2,ifIndex.1 -w 1:2,1:2 -c 2:2,2:2");
     cmp_ok( $res->return_code, '==', 2, "Checking critical threshold is passed if any one value crosses" );
     like($res->output, "/^SNMP CRITICAL - 2 *1*/", "Got two values back" );
     like( $res->perf_output, "/ifIndex.2=2/", "Got 1st perf data" );
     like( $res->perf_output, "/ifIndex.1=1/", "Got 2nd perf data" );
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w 1:,1: -c 1:,1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w 1:,1: -c 1:,1:");
     cmp_ok( $res->return_code, '==', 0, "Exit OK when querying hrMemorySize and hrSystemProcesses");
     like($res->output, '/^SNMP OK - \d+ \d+/', "String contains hrMemorySize and hrSystemProcesses");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w \@:0 -c \@0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w \@:0 -c \@0");
     cmp_ok( $res->return_code, '==', 0, "Exit OK with inside-range thresholds");
     like($res->output, '/^SNMP OK - 1\s.*$/', "String matches SNMP OK and output format");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o enterprises.ucdavis.laTable.laEntry.laLoad.3");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o enterprises.ucdavis.laTable.laEntry.laLoad.3");
     $res->output =~ m/^SNMP OK - (\d+\.\d{2})\s.*$/;
     my $lower = $1 - 0.05;
     my $higher = $1 + 0.05;
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o enterprises.ucdavis.laTable.laEntry.laLoad.3 -w $lower -c $higher");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o enterprises.ucdavis.laTable.laEntry.laLoad.3 -w $lower -c $higher");
     cmp_ok( $res->return_code, '==', 1, "Exit WARNING with fractionnal arguments");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0,host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w ,:0 -c ,:2");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0,host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w ,:0 -c ,:2");
     cmp_ok( $res->return_code, '==', 1, "Exit WARNING on 2nd threshold");
     like($res->output, '/^SNMP WARNING - Timeticks:\s\(\d+\)\s+(?:\d+ days?,\s+)?\d+:\d+:\d+\.\d+\s+\*1\*\s.*$/', "First OID returned as string, 2nd checked for thresholds");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w '' -c ''");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrSWRun.hrSWRunTable.hrSWRunEntry.hrSWRunIndex.1 -w '' -c ''");
     cmp_ok( $res->return_code, '==', 0, "Empty thresholds doesn't crash");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w ,,1 -c ,,2");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w ,,1 -c ,,2");
     cmp_ok( $res->return_code, '==', 0, "Skipping first two thresholds on 2 OID check");
     like($res->output, '/^SNMP OK - \d+ \w+ \d+\s.*$/', "Skipping first two thresholds, result printed rather than parsed");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w ,, -c ,,");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o host.hrStorage.hrMemorySize.0,host.hrSystem.hrSystemProcesses.0 -w ,, -c ,,");
     cmp_ok( $res->return_code, '==', 0, "Skipping all thresholds");
     like($res->output, '/^SNMP OK - \d+ \w+ \d+\s.*$/', "Skipping all thresholds, result printed rather than parsed");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0 -c 1000000000000: -u '1/100 sec'");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0 -c 1000000000000: -u '1/100 sec'");
     cmp_ok( $res->return_code, '==', 2, "Timetick used as a threshold");
     like($res->output, '/^SNMP CRITICAL - \*\d+\* 1\/100 sec.*$/', "Timetick used as a threshold, parsed as numeric");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o system.sysUpTime.0");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o system.sysUpTime.0");
     cmp_ok( $res->return_code, '==', 0, "Timetick used as a string");
     like($res->output, '/^SNMP OK - Timeticks:\s\(\d+\)\s+(?:\d+ days?,\s+)?\d+:\d+:\d+\.\d+\s.*$/', "Timetick used as a string, result printed rather than parsed");
 
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -C $snmp_community -o HOST-RESOURCES-MIB::hrSWRunName.1");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -C $snmp_community -o HOST-RESOURCES-MIB::hrSWRunName.1");
     cmp_ok( $res->return_code, '==', 0, "snmp response without datatype");
     like( $res->output, '/^SNMP OK - "(systemd|init)" \| $/', "snmp response without datatype" );
 }
 
 SKIP: {
     skip "no SNMP user defined", 1 if ( ! $user_snmp );
-    $res = NPTest->testCmd( "./check_snmp -H $host_snmp -o HOST-RESOURCES-MIB::hrSystemUptime.0 -P 3 -U $user_snmp -L noAuthNoPriv");
+    $res = NPTest->testCmd( "./check_snmp -H $host_snmp --ignore-mib-parsing-errors -o HOST-RESOURCES-MIB::hrSystemUptime.0 -P 3 -U $user_snmp -L noAuthNoPriv");
     like( $res->output, '/^SNMP OK - Timeticks:\s\(\d+\)\s+(?:\d+ days?,\s+)?\d+:\d+:\d+\.\d+\s.*$/', "noAuthNoPriv security level works properly" );
 }
 
@@ -163,14 +163,14 @@ SKIP: {
 # the tests can run on hosts w/o snmp host/community in NPTest.cache. Execution will fail anyway
 SKIP: {
     skip "no non responsive host defined", 2 if ( ! $host_nonresponsive );
-    $res = NPTest->testCmd( "./check_snmp -H $host_nonresponsive -C np_foobar -o system.sysUpTime.0 -w 1: -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $host_nonresponsive --ignore-mib-parsing-errors -C np_foobar -o system.sysUpTime.0 -w 1: -c 1:");
     cmp_ok( $res->return_code, '==', 2, "Exit CRITICAL with non responsive host" );
     like($res->output, '/Plugin timed out while executing system call/', "String matches timeout problem");
 }
 
 SKIP: {
     skip "no non invalid host defined", 2 if ( ! $hostname_invalid );
-    $res = NPTest->testCmd( "./check_snmp -H $hostname_invalid   -C np_foobar -o system.sysUpTime.0 -w 1: -c 1:");
+    $res = NPTest->testCmd( "./check_snmp -H $hostname_invalid --ignore-mib-parsing-errors -C np_foobar -o system.sysUpTime.0 -w 1: -c 1:");
     cmp_ok( $res->return_code, '==', 3, "Exit UNKNOWN with non responsive host" );
-    like($res->output, '/External command error: .*(nosuchhost|Name or service not known|Unknown host)/', "String matches invalid host");
+    like($res->output, '/External command error: .*(nosuchhost|Name or service not known|Unknown host).*/s', "String matches invalid host");
 }