From 6879a7ae4393e4a94490e297dbe8b836c6c7dd15 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Fri, 18 Dec 2009 18:50:29 +0100 Subject: [PATCH] ntpd: fx incorrect offset display when stepping Signed-off-by: Denys Vlasenko --- networking/ntpd.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/networking/ntpd.c b/networking/ntpd.c index 719b00550..1c53e3152 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -98,7 +98,7 @@ typedef struct { double d_offset; double d_delay; //UNUSED: double d_error; - time_t d_rcvd; + time_t d_rcv_time; uint32_t d_refid4; uint8_t d_leap; uint8_t d_stratum; @@ -147,8 +147,8 @@ struct globals { uint32_t refid4; uint8_t synced; uint8_t leap; -#define G_precision -6 -// int8_t precision; +#define G_precision_exp -6 +// int8_t precision_exp; uint8_t stratum; uint8_t time_was_stepped; uint8_t first_adj_done; @@ -352,6 +352,7 @@ send_query_to_peer(ntp_peer_t *p) static void step_time_once(double offset) { + double dtime; llist_t *item; struct timeval tv; char buf[80]; @@ -366,9 +367,9 @@ step_time_once(double offset) goto bail; gettimeofday(&tv, NULL); /* never fails */ - offset += tv.tv_sec; - offset += 1.0e-6 * tv.tv_usec; - d_to_tv(offset, &tv); + dtime = offset + tv.tv_sec; + dtime += 1.0e-6 * tv.tv_usec; + d_to_tv(dtime, &tv); if (settimeofday(&tv, NULL) == -1) bb_perror_msg_and_die("settimeofday"); @@ -380,7 +381,7 @@ step_time_once(double offset) for (item = G.ntp_peers; item != NULL; item = item->link) { ntp_peer_t *p = (ntp_peer_t *) item->data; - p->next_action_time -= offset; + p->next_action_time -= (time_t)offset; } bail: @@ -517,11 +518,11 @@ update_peer_data(ntp_peer_t *p) if (good < 8) //FIXME: was it meant to be NUM_DATAPOINTS, not 8? return; - memcpy(&p->update, &p->p_datapoint[best], sizeof(p->update)); + p->update = p->p_datapoint[best]; /* struct copy */ slew_time(); for (i = 0; i < NUM_DATAPOINTS; i++) - if (p->p_datapoint[i].d_rcvd <= p->p_datapoint[best].d_rcvd) + if (p->p_datapoint[i].d_rcv_time <= p->p_datapoint[best].d_rcv_time) p->p_datapoint[i].d_good = 0; } @@ -614,7 +615,7 @@ recv_and_process_peer_pkt(ntp_peer_t *p) goto close_sock; } //UNUSED: datapoint->d_error = (T2 - T1) - (T3 - T4); - datapoint->d_rcvd = (time_t)(T4 - OFFSET_1900_1970); /* = time(NULL); */ + datapoint->d_rcv_time = (time_t)(T4 - OFFSET_1900_1970); /* = time(NULL); */ datapoint->d_good = 1; datapoint->d_leap = (msg.m_status & LI_MASK); @@ -709,7 +710,7 @@ recv_and_process_client_pkt(void /*int fd*/) MODE_SERVER : MODE_SYM_PAS; msg.m_stratum = G.stratum; msg.m_ppoll = query_ppoll; - msg.m_precision = G_precision; + msg.m_precision = G_precision_exp; rectime = gettime1900d(); msg.m_xmttime = msg.m_rectime = d_to_lfp(rectime); msg.m_reftime = d_to_lfp(G.reftime); @@ -861,7 +862,7 @@ static NOINLINE void ntp_init(char **argv) /* Set some globals */ #if 0 - /* With constant b = 100, G.precision is also constant -6. + /* With constant b = 100, G.precision_exp is also constant -6. * Uncomment this and you'll see */ { int prec = 0; @@ -878,8 +879,8 @@ static NOINLINE void ntp_init(char **argv) # endif while (b > 1) prec--, b >>= 1; - //G.precision = prec; - bb_error_msg("G.precision:%d", prec); /* -6 */ + //G.precision_exp = prec; + bb_error_msg("G.precision_exp:%d", prec); /* -6 */ } #endif G.scale = 1; -- 2.25.1