diff options
Diffstat (limited to 'src/clock/s6-taiclock.c')
| -rw-r--r-- | src/clock/s6-taiclock.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/clock/s6-taiclock.c b/src/clock/s6-taiclock.c index 0fdcab7..1f0c399 100644 --- a/src/clock/s6-taiclock.c +++ b/src/clock/s6-taiclock.c @@ -55,9 +55,11 @@ int main (int argc, char const *const *argv) tain timeouttto, throttletto, globaltto ; tain globaldeadline ; unsigned int roundtrips = 10 ; + unsigned int successes = 0 ; unsigned int i = 0 ; ip46 ipremote ; int sock ; + int e = 0 ; int flagforce = 0 ; uint16_t portremote = 4014 ; PROG = "s6-taiclock" ; @@ -95,6 +97,7 @@ int main (int argc, char const *const *argv) } if (!argc) dieusage() ; if (!ip46_scan(argv[0], &ipremote)) dieusage() ; + if (roundtrips < 1) roundtrips = 1 ; sock = socket_udp46(ip46_is6(&ipremote)) ; if (sock < 0) strerr_diefu1sys(111, "socket_udp") ; @@ -115,6 +118,7 @@ int main (int argc, char const *const *argv) tain_copynow(&before) ; if (!tain_exchange(sock, &ipremote, portremote, &serversays, &deadline)) { + e = errno ; if (verbosity >= 2) { char fmt[UINT_FMT] ; @@ -136,6 +140,7 @@ int main (int argc, char const *const *argv) tain_add_g(&max, &deltamax) ; if (tain_less(&cur, &max) && !tain_less(&cur, &min)) tain_sub(&deltamin, &cur, &STAMP) ; + successes++ ; } tain_add_g(&deadline, &throttletto) ; @@ -152,6 +157,20 @@ int main (int argc, char const *const *argv) } } + if (!successes) + { + errno = e ; + strerr_diefu2sys(1, "contact taiclock server at ", argv[0]) ; + } + if (successes < roundtrips && verbosity >= 2) + { + char fmts[UINT_FMT] ; + char fmtr[UINT_FMT] ; + fmts[uint_fmt(fmts, successes)] = 0 ; + fmtr[uint_fmt(fmtr, roundtrips)] = 0 ; + strerr_warnw5x("only ", fmts, " server exchanges succeeded out of ", fmtr, " - uncertainty may be higher than expected") ; + } + { char adj[TAIN_PACK] ; tain delta ; |