Merge branch 'collectd-4.5' into collectd-4.6
[collectd.git] / src / ntpd.c
index b6214e8..f51ef5a 100644 (file)
@@ -68,7 +68,7 @@ static char  ntpd_port[16];
 #define MAXFILENAME 128
 #define MAXSEQ  127
 #define MODE_PRIVATE 7
-#define NTP_OLDVERSION ((u_char) 1) /* oldest credible version */
+#define NTP_OLDVERSION ((uint8_t) 1) /* oldest credible version */
 #define IMPL_XNTPD 3
 #define FP_FRAC 65536.0
 
@@ -117,27 +117,27 @@ struct resp_pkt
 
 #define        ISRESPONSE(rm_vn_mode)  (((rm_vn_mode)&RESP_BIT)!=0)
 #define        ISMORE(rm_vn_mode)      (((rm_vn_mode)&MORE_BIT)!=0)
-#define INFO_VERSION(rm_vn_mode) ((u_char)(((rm_vn_mode)>>3)&0x7))
+#define INFO_VERSION(rm_vn_mode) ((uint8_t)(((rm_vn_mode)>>3)&0x7))
 #define        INFO_MODE(rm_vn_mode)   ((rm_vn_mode)&0x7)
 
 #define        RM_VN_MODE(resp, more, version)         \
-                               ((u_char)(((resp)?RESP_BIT:0)\
+                               ((uint8_t)(((resp)?RESP_BIT:0)\
                                |((more)?MORE_BIT:0)\
                                |((version?version:(NTP_OLDVERSION+1))<<3)\
                                |(MODE_PRIVATE)))
 
 #define        INFO_IS_AUTH(auth_seq)  (((auth_seq) & 0x80) != 0)
 #define        INFO_SEQ(auth_seq)      ((auth_seq)&0x7f)
-#define        AUTH_SEQ(auth, seq)     ((u_char)((((auth)!=0)?0x80:0)|((seq)&0x7f)))
+#define        AUTH_SEQ(auth, seq)     ((uint8_t)((((auth)!=0)?0x80:0)|((seq)&0x7f)))
 
-#define        INFO_ERR(err_nitems)    ((u_short)((ntohs(err_nitems)>>12)&0xf))
-#define        INFO_NITEMS(err_nitems) ((u_short)(ntohs(err_nitems)&0xfff))
-#define        ERR_NITEMS(err, nitems) (htons((u_short)((((u_short)(err)<<12)&0xf000)\
-                               |((u_short)(nitems)&0xfff))))
+#define        INFO_ERR(err_nitems)    ((uint16_t)((ntohs(err_nitems)>>12)&0xf))
+#define        INFO_NITEMS(err_nitems) ((uint16_t)(ntohs(err_nitems)&0xfff))
+#define        ERR_NITEMS(err, nitems) (htons((uint16_t)((((uint16_t)(err)<<12)&0xf000)\
+                               |((uint16_t)(nitems)&0xfff))))
 
 #define        INFO_MBZ(mbz_itemsize)  ((ntohs(mbz_itemsize)>>12)&0xf)
-#define        INFO_ITEMSIZE(mbz_itemsize)     ((u_short)(ntohs(mbz_itemsize)&0xfff))
-#define        MBZ_ITEMSIZE(itemsize)  (htons((u_short)(itemsize)))
+#define        INFO_ITEMSIZE(mbz_itemsize)     ((uint16_t)(ntohs(mbz_itemsize)&0xfff))
+#define        MBZ_ITEMSIZE(itemsize)  (htons((uint16_t)(itemsize)))
 
 /* negate a long float type */
 #define M_NEG(v_i, v_f) \
@@ -269,11 +269,10 @@ static int ntpd_config (const char *key, const char *value)
        {
                int port = (int) (atof (value));
                if ((port > 0) && (port <= 65535))
-                       snprintf (ntpd_port, sizeof (ntpd_port),
+                       ssnprintf (ntpd_port, sizeof (ntpd_port),
                                        "%i", port);
                else
-                       strncpy (ntpd_port, value, sizeof (ntpd_port));
-               ntpd_port[sizeof (ntpd_port) - 1] = '\0';
+                       sstrncpy (ntpd_port, value, sizeof (ntpd_port));
        }
        else if (strcasecmp (key, "ReverseLookups") == 0)
        {
@@ -301,38 +300,13 @@ static void ntpd_submit (char *type, char *type_inst, double value)
 
        vl.values = values;
        vl.values_len = 1;
-       vl.time = time (NULL);
        sstrncpy (vl.host, hostname_g, sizeof (vl.host));
        sstrncpy (vl.plugin, "ntpd", sizeof (vl.plugin));
        sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
-       strncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
+       sstrncpy (vl.type, type, sizeof (vl.type));
+       sstrncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
 
-       plugin_dispatch_values (type, &vl);
-}
-
-/* returns `tv0 - tv1' in milliseconds or 0 if `tv1 > tv0' */
-static int timeval_sub (const struct timeval *tv0, const struct timeval *tv1)
-{
-       int sec;
-       int usec;
-
-       if ((tv0->tv_sec < tv1->tv_sec)
-                       || ((tv0->tv_sec == tv1->tv_sec) && (tv0->tv_usec < tv1->tv_usec)))
-               return (0);
-
-       sec  = tv0->tv_sec  - tv1->tv_sec;
-       usec = tv0->tv_usec - tv1->tv_usec;
-
-       while (usec < 0)
-       {
-               usec += 1000000;
-               sec  -= 1;
-       }
-
-       if (sec < 0)
-               return (0);
-
-       return ((sec * 1000) + ((usec + 500) / 1000));
+       plugin_dispatch_values (&vl);
 }
 
 static int ntpd_connect (void)
@@ -459,6 +433,8 @@ static int ntpd_receive_response (int *res_items, int *res_size,
        done = 0;
        while (done == 0)
        {
+               struct timeval time_left;
+
                if (gettimeofday (&time_now, NULL) < 0)
                {
                        char errbuf[1024];
@@ -467,8 +443,14 @@ static int ntpd_receive_response (int *res_items, int *res_size,
                        return (-1);
                }
 
+               if (timeval_cmp (time_end, time_now, &time_left) <= 0)
+                       timeout = 0;
+               else
+                       timeout = 1000 * time_left.tv_sec
+                               + ((time_left.tv_usec + 500) / 1000);
+
                /* timeout reached */
-               if ((timeout = timeval_sub (&time_end, &time_now)) == 0)
+               if (timeout <= 0)
                        break;
 
                poll_s.fd      = sd;
@@ -874,7 +856,7 @@ static int ntpd_read (void)
 
                        if (refclock_id < refclock_names_num)
                        {
-                               strncpy (peername, refclock_names[refclock_id],
+                               sstrncpy (peername, refclock_names[refclock_id],
                                                sizeof (peername));
                        }
                        else
@@ -883,7 +865,7 @@ static int ntpd_read (void)
                                addr_obj.s_addr = ptr->srcadr;
                                addr_str = inet_ntoa (addr_obj);
 
-                               strncpy (peername, addr_str, sizeof (peername));
+                               sstrncpy (peername, addr_str, sizeof (peername));
                        }
                }
                else /* Normal network host. */
@@ -896,25 +878,33 @@ static int ntpd_read (void)
 
                        if (ptr->v6_flag)
                        {
-                               struct sockaddr_in6 *sa_ptr;
-                               sa_ptr = (struct sockaddr_in6 *) &sa;
+                               struct sockaddr_in6 sa6;
 
-                               sa_ptr->sin6_family = AF_INET6;
-                               sa_ptr->sin6_port = htons (123);
-                               memcpy (&sa_ptr->sin6_addr, &ptr->srcadr6,
+                               assert (sizeof (sa) >= sizeof (sa6));
+
+                               memset (&sa6, 0, sizeof (sa6));
+                               sa6.sin6_family = AF_INET6;
+                               sa6.sin6_port = htons (123);
+                               memcpy (&sa6.sin6_addr, &ptr->srcadr6,
                                                sizeof (struct in6_addr));
-                               sa_len = sizeof (struct sockaddr_in6);
+                               sa_len = sizeof (sa6);
+
+                               memcpy (&sa, &sa6, sizeof (sa6));
                        }
                        else
                        {
-                               struct sockaddr_in *sa_ptr;
-                               sa_ptr = (struct sockaddr_in *) &sa;
+                               struct sockaddr_in sa4;
 
-                               sa_ptr->sin_family = AF_INET;
-                               sa_ptr->sin_port = htons (123);
-                               memcpy (&sa_ptr->sin_addr, &ptr->srcadr,
+                               assert (sizeof (sa) >= sizeof (sa4));
+
+                               memset (&sa4, 0, sizeof (sa4));
+                               sa4.sin_family = AF_INET;
+                               sa4.sin_port = htons (123);
+                               memcpy (&sa4.sin_addr, &ptr->srcadr,
                                                sizeof (struct in_addr));
-                               sa_len = sizeof (struct sockaddr_in);
+                               sa_len = sizeof (sa4);
+
+                               memcpy (&sa, &sa4, sizeof (sa4));
                        }
 
                        if (do_reverse_lookups == 0)