[nagiosplug] check_snmp: add timeout handler befor running ...

[Nagios Plugin Development]

    Module: nagiosplug
    Branch: master
    Commit: 4933146e00ccecc83144cb567520b963670028c3
    Author: Sven Nierlein <Sven.Nierlein at consol.de>
 Committer: Sven Nierlein <sven at consol.de>
      Date: Thu Sep 12 18:26:01 2013 +0200
       URL: http://nagiosplug.git.sf.net/git/gitweb.cgi?p=nagiosplug/nagiosplug;a=commit;h=4933146

check_snmp: add timeout handler befor running snmpget

---

 plugins/check_snmp.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/plugins/check_snmp.c b/plugins/check_snmp.c
index 0bc810d..52ad31e 100644
--- a/plugins/check_snmp.c
+++ b/plugins/check_snmp.c
@@ -33,6 +33,7 @@ const char *copyright = "1999-2007";
 const char *email = "nagiosplug-devel at lists.sourceforge.net";
 
 #include "common.h"
+#include "runcmd.h"
 #include "utils.h"
 #include "utils_cmd.h"
 
@@ -330,9 +331,18 @@ main (int argc, char **argv)
 	if (verbose)
 		printf ("%s\n", cl_hidden_auth);
 
+	/* Set signal handling and alarm */
+	if (signal (SIGALRM, runcmd_timeout_alarm_handler) == SIG_ERR) {
+		usage4 (_("Cannot catch SIGALRM"));
+	}
+	alarm(timeout_interval * retries + 5);
+
 	/* Run the command */
 	return_code = cmd_run_array (command_line, &chld_out, &chld_err, 0);
 
+	/* disable alarm again */
+	alarm(0);
+
 	/* Due to net-snmp sometimes showing stderr messages with poorly formed MIBs,
 	   only return state unknown if return code is non zero or there is no stdout.
 	   Do this way so that if there is stderr, will get added to output, which helps problem diagnosis