diff options
Diffstat (limited to 'sbin/ping')
| -rw-r--r-- | sbin/ping/ping.8 | 9 | ||||
| -rw-r--r-- | sbin/ping/ping.c | 8 |
2 files changed, 12 insertions, 5 deletions
diff --git a/sbin/ping/ping.8 b/sbin/ping/ping.8 index 2d8110d..ef133e8 100644 --- a/sbin/ping/ping.8 +++ b/sbin/ping/ping.8 @@ -32,7 +32,7 @@ .\" @(#)ping.8 8.2 (Berkeley) 12/11/93 .\" $FreeBSD$ .\" -.Dd March 1, 1997 +.Dd September 25, 2001 .Dt PING 8 .Os .Sh NAME @@ -81,11 +81,14 @@ bytes used to fill out the packet. The options are as follows: .Bl -tag -width indent .It Fl A Audible. -Include a bell +Output a bell .Tn ( ASCII 0x07) -character in the output when no packet is received before the next packet +character when no packet is received before the next packet is transmitted. +To cater for round-trip times that are longer than the interval +between transmissions, further missing packets cause a bell only +if the maximum number of unreceived packets has increased. .It Fl a Audible. Include a bell diff --git a/sbin/ping/ping.c b/sbin/ping/ping.c index 5840b8f..0c6b3cb 100644 --- a/sbin/ping/ping.c +++ b/sbin/ping/ping.c @@ -163,6 +163,7 @@ long npackets; /* max packets to transmit */ long nreceived; /* # of packets we got back */ long nrepeats; /* number of duplicates */ long ntransmitted; /* sequence # for outbound packets = #sent */ +long nmissedmax; /* max value of ntransmitted - nreceived - 1 */ int interval = 1000; /* interval between packets, ms */ /* timing */ @@ -706,8 +707,11 @@ main(argc, argv) } (void)gettimeofday(&last, NULL); - if (ntransmitted != nreceived+1 && options & F_MISSED) - (void)write(STDOUT_FILENO, &BBELL, 1); + if (ntransmitted - nreceived - 1 > nmissedmax) { + nmissedmax = ntransmitted - nreceived - 1; + if (options & F_MISSED) + (void)write(STDOUT_FILENO, &BBELL, 1); + } } } finish(); |
