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Diffstat (limited to 'plugins/sslutils.c')
-rw-r--r--plugins/sslutils.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/plugins/sslutils.c b/plugins/sslutils.c
index f5035e23..afc24be1 100644
--- a/plugins/sslutils.c
+++ b/plugins/sslutils.c
@@ -30,6 +30,10 @@
#include "common.h"
#include "netutils.h"
+/* Max length of timestamps, ex: "03/05/2009 00:13 GMT". Calculate up to 6
+ * chars for the timezone (ex: "GMT-10") and one terminating \0 */
+#define TS_LENGTH 24
+
#ifdef HAVE_SSL
static SSL_CTX *c=NULL;
static SSL *s=NULL;
@@ -90,7 +94,7 @@ int np_net_ssl_check_cert(int days_till_exp){
int offset;
struct tm stamp;
int days_left;
- char timestamp[17] = "";
+ char timestamp[TS_LENGTH] = "";
certificate=SSL_get_peer_certificate(s);
if(! certificate){
@@ -135,16 +139,17 @@ int np_net_ssl_check_cert(int days_till_exp){
stamp.tm_sec = 0;
stamp.tm_isdst = -1;
- days_left = (mktime (&stamp) - time (NULL)) / 86400;
+ float time_left = difftime(timegm(&stamp), time(NULL));
+ days_left = time_left / 86400;
snprintf
- (timestamp, 17, "%02d/%02d/%04d %02d:%02d",
+ (timestamp, TS_LENGTH, "%02d/%02d/%04d %02d:%02d %s",
stamp.tm_mon + 1,
- stamp.tm_mday, stamp.tm_year + 1900, stamp.tm_hour, stamp.tm_min);
+ stamp.tm_mday, stamp.tm_year + 1900, stamp.tm_hour, stamp.tm_min, stamp.tm_zone);
if (days_left > 0 && days_left <= days_till_exp) {
printf (_("WARNING - Certificate expires in %d day(s) (%s).\n"), days_left, timestamp);
return STATE_WARNING;
- } else if (days_left < 0) {
+ } else if (time_left < 0) {
printf (_("CRITICAL - Certificate expired on %s.\n"), timestamp);
return STATE_CRITICAL;
} else if (days_left == 0) {