X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fntpd.c;h=30f29c97dbfcef7f50afbb8daa1a5d2b67f305e8;hb=7dcf9ab7675fe91d1bd74998f55031bc3b0480c0;hp=4a31e455eece36ad595f8bbc41ac7ee6985c35e7;hpb=17b60946497048b34b417aa0497607f3aa6a34f3;p=collectd.git diff --git a/src/ntpd.c b/src/ntpd.c index 4a31e455..30f29c97 100644 --- a/src/ntpd.c +++ b/src/ntpd.c @@ -28,9 +28,9 @@ #define _BSD_SOURCE /* For NI_MAXHOST */ #include "collectd.h" + #include "common.h" #include "plugin.h" -#include "configfile.h" #if HAVE_STDINT_H # include @@ -51,6 +51,10 @@ # include #endif +#ifndef STA_NANO +# define STA_NANO 0x2000 +#endif + static const char *config_keys[] = { "Host", @@ -342,9 +346,7 @@ static int ntpd_connect (void) const char *host; const char *port; - struct addrinfo ai_hints; struct addrinfo *ai_list; - struct addrinfo *ai_ptr; int status; if (sock_descr >= 0) @@ -360,14 +362,12 @@ static int ntpd_connect (void) if (strlen (port) == 0) port = NTPD_DEFAULT_PORT; - memset (&ai_hints, '\0', sizeof (ai_hints)); - ai_hints.ai_flags = 0; -#ifdef AI_ADDRCONFIG - ai_hints.ai_flags |= AI_ADDRCONFIG; -#endif - ai_hints.ai_family = PF_UNSPEC; - ai_hints.ai_socktype = SOCK_DGRAM; - ai_hints.ai_protocol = IPPROTO_UDP; + struct addrinfo ai_hints = { + .ai_family = AF_UNSPEC, + .ai_flags = AI_ADDRCONFIG, + .ai_protocol = IPPROTO_UDP, + .ai_socktype = SOCK_DGRAM + }; if ((status = getaddrinfo (host, port, &ai_hints, &ai_list)) != 0) { @@ -380,7 +380,7 @@ static int ntpd_connect (void) return (-1); } - for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) + for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) { /* create our socket descriptor */ if ((sock_descr = socket (ai_ptr->ai_family, @@ -418,7 +418,6 @@ static int ntpd_receive_response (int *res_items, int *res_size, struct resp_pkt res; int status; int done; - int i; char *items; size_t items_num; @@ -427,13 +426,13 @@ static int ntpd_receive_response (int *res_items, int *res_size, struct timeval time_now; int timeout; - int pkt_item_num; /* items in this packet */ - int pkt_item_len; /* size of the items in this packet */ + int pkt_item_num; /* items in this packet */ + int pkt_item_len; /* size of the items in this packet */ int pkt_sequence; - char pkt_recvd[MAXSEQ+1]; /* sequence numbers that have been received */ - int pkt_recvd_num; /* number of packets that have been received */ - int pkt_lastseq; /* the last sequence number */ - ssize_t pkt_padding; /* Padding in this packet */ + char pkt_recvd[MAXSEQ+1] = { 0 }; /* sequence numbers that have been received */ + int pkt_recvd_num; /* number of packets that have been received */ + int pkt_lastseq; /* the last sequence number */ + ssize_t pkt_padding; /* Padding in this packet */ if ((sd = ntpd_connect ()) < 0) return (-1); @@ -441,7 +440,6 @@ static int ntpd_receive_response (int *res_items, int *res_size, items = NULL; items_num = 0; - memset (pkt_recvd, '\0', sizeof (pkt_recvd)); pkt_recvd_num = 0; pkt_lastseq = -1; @@ -505,7 +503,7 @@ static int ntpd_receive_response (int *res_items, int *res_size, break; } - memset ((void *) &res, '\0', sizeof (res)); + memset (&res, '\0', sizeof (res)); status = recv (sd, (void *) &res, sizeof (res), 0 /* no flags */); if ((status < 0) && ((errno == EAGAIN) || (errno == EINTR))) @@ -663,7 +661,7 @@ static int ntpd_receive_response (int *res_items, int *res_size, */ DEBUG ("realloc (%p, %zu)", (void *) *res_data, (items_num + pkt_item_num) * res_item_size); - items = realloc ((void *) *res_data, + items = realloc (*res_data, (items_num + pkt_item_num) * res_item_size); if (items == NULL) { @@ -673,7 +671,7 @@ static int ntpd_receive_response (int *res_items, int *res_size, items_num += pkt_item_num; *res_data = items; - for (i = 0; i < pkt_item_num; i++) + for (int i = 0; i < pkt_item_num; i++) { /* dst: There are already `*res_items' items with * res_item_size bytes each in in `*res_data'. Set @@ -710,7 +708,7 @@ static int ntpd_receive_response (int *res_items, int *res_size, static int ntpd_send_request (int req_code, int req_items, int req_size, char *req_data) { int sd; - struct req_pkt req; + struct req_pkt req = { 0 }; size_t req_data_len; int status; @@ -720,7 +718,6 @@ static int ntpd_send_request (int req_code, int req_items, int req_size, char *r if ((sd = ntpd_connect ()) < 0) return (-1); - memset ((void *) &req, '\0', sizeof (req)); req.rm_vn_mode = RM_VN_MODE(0, 0, 0); req.auth_seq = AUTH_SEQ (0, 0); req.implementation = IMPL_XNTPD; @@ -801,20 +798,17 @@ static uint32_t ntpd_get_refclock_id (struct info_peer_summary const *peer_info) static int ntpd_get_name_from_address (char *buffer, size_t buffer_size, struct info_peer_summary const *peer_info, _Bool do_reverse_lookup) { - struct sockaddr_storage sa; + struct sockaddr_storage sa = { 0 }; socklen_t sa_len; int flags = 0; int status; - memset (&sa, 0, sizeof (sa)); - if (peer_info->v6_flag) { - struct sockaddr_in6 sa6; + struct sockaddr_in6 sa6 = { 0 }; assert (sizeof (sa) >= sizeof (sa6)); - memset (&sa6, 0, sizeof (sa6)); sa6.sin6_family = AF_INET6; sa6.sin6_port = htons (123); memcpy (&sa6.sin6_addr, &peer_info->srcadr6, @@ -825,11 +819,10 @@ static int ntpd_get_name_from_address (char *buffer, size_t buffer_size, } else { - struct sockaddr_in sa4; + struct sockaddr_in sa4 = { 0 }; assert (sizeof (sa) >= sizeof (sa4)); - memset (&sa4, 0, sizeof (sa4)); sa4.sin_family = AF_INET; sa4.sin_port = htons (123); memcpy (&sa4.sin_addr, &peer_info->srcadr, @@ -907,11 +900,9 @@ static int ntpd_read (void) gauge_t offset_error; int status; - int i; /* On Linux, if the STA_NANO bit is set in ik->status, then ik->offset - * is is nanoseconds, otherwise it's microseconds. - * TODO(octo): STA_NANO is defined in the Linux specific header. */ + * is is nanoseconds, otherwise it's microseconds. */ double scale_loop = 1e-6; double scale_error = 1e-6; @@ -936,6 +927,11 @@ static int ntpd_read (void) return (-1); } + if (ntohs(ik->status) & STA_NANO) { + scale_loop = 1e-9; + scale_error = 1e-9; + } + /* kerninfo -> estimated error */ offset_loop = scale_loop * ((gauge_t) ntohl (ik->offset)); freq_loop = ntpd_read_fp (ik->freq); @@ -971,7 +967,7 @@ static int ntpd_read (void) return (-1); } - for (i = 0; i < ps_num; i++) + for (int i = 0; i < ps_num; i++) { struct info_peer_summary *ptr; double offset;